From e02f313b1f251ccb363ae1ac24016d87c1be9009 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sun, 17 Oct 2021 12:02:10 +0200 Subject: [PATCH 001/557] Add comment on length checks when parsing ECDSA sigs I claim the check can be removed but I don't want to touch this stable and well-tested code. On the way, we fix grammar in another comment. --- src/ecdsa_impl.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/ecdsa_impl.h b/src/ecdsa_impl.h index a75a08833c..2aeb6f3a29 100644 --- a/src/ecdsa_impl.h +++ b/src/ecdsa_impl.h @@ -79,8 +79,7 @@ static int secp256k1_der_read_len(size_t *len, const unsigned char **sigp, const } if (lenleft > sizeof(size_t)) { /* The resulting length would exceed the range of a size_t, so - * certainly longer than the passed array size. - */ + * it is certainly longer than the passed array size. */ return 0; } while (lenleft > 0) { @@ -89,7 +88,9 @@ static int secp256k1_der_read_len(size_t *len, const unsigned char **sigp, const lenleft--; } if (*len > (size_t)(sigend - *sigp)) { - /* Result exceeds the length of the passed array. */ + /* Result exceeds the length of the passed array. + (Checking this is the responsibility of the caller but it + can't hurt do it here, too.) */ return 0; } if (*len < 128) { From d93f62e3693d6763891edcad11472f9d475177e5 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 1 Feb 2023 11:37:39 +0100 Subject: [PATCH 002/557] field: Verify field element even after secp256k1_fe_set_b32 fails --- src/field_10x26_impl.h | 1 + src/field_5x52_impl.h | 1 + 2 files changed, 2 insertions(+) diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 5e6c63cf4e..2c10814fa8 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -372,6 +372,7 @@ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { secp256k1_fe_verify(r); } else { r->normalized = 0; + secp256k1_fe_verify(r); } #endif return ret; diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 985c486ae3..d92def5c33 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -347,6 +347,7 @@ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { secp256k1_fe_verify(r); } else { r->normalized = 0; + secp256k1_fe_verify(r); } #endif return ret; From ca92a35d019730aec9d3ec8097dcbb9633a69874 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 1 Feb 2023 11:44:28 +0100 Subject: [PATCH 003/557] field: Simplify code in secp256k1_fe_set_b32 --- src/field_10x26_impl.h | 9 ++------- src/field_5x52_impl.h | 9 ++------- 2 files changed, 4 insertions(+), 14 deletions(-) diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 2c10814fa8..9fd8de808d 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -367,13 +367,8 @@ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { ret = !((r->n[9] == 0x3FFFFFUL) & ((r->n[8] & r->n[7] & r->n[6] & r->n[5] & r->n[4] & r->n[3] & r->n[2]) == 0x3FFFFFFUL) & ((r->n[1] + 0x40UL + ((r->n[0] + 0x3D1UL) >> 26)) > 0x3FFFFFFUL)); #ifdef VERIFY r->magnitude = 1; - if (ret) { - r->normalized = 1; - secp256k1_fe_verify(r); - } else { - r->normalized = 0; - secp256k1_fe_verify(r); - } + r->normalized = ret; + secp256k1_fe_verify(r); #endif return ret; } diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index d92def5c33..4262542fc1 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -342,13 +342,8 @@ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { ret = !((r->n[4] == 0x0FFFFFFFFFFFFULL) & ((r->n[3] & r->n[2] & r->n[1]) == 0xFFFFFFFFFFFFFULL) & (r->n[0] >= 0xFFFFEFFFFFC2FULL)); #ifdef VERIFY r->magnitude = 1; - if (ret) { - r->normalized = 1; - secp256k1_fe_verify(r); - } else { - r->normalized = 0; - secp256k1_fe_verify(r); - } + r->normalized = ret; + secp256k1_fe_verify(r); #endif return ret; } From 77445898a5852ecd38ab95cfb329333a82673115 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 9 Mar 2023 13:05:14 +0000 Subject: [PATCH 004/557] Remove `SECP256K1_INLINE` usage from examples --- examples/examples_util.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/examples/examples_util.h b/examples/examples_util.h index a52b1fa115..c4bd67b7f6 100644 --- a/examples/examples_util.h +++ b/examples/examples_util.h @@ -77,7 +77,7 @@ static void print_hex(unsigned char* data, size_t size) { #include #endif /* Cleanses memory to prevent leaking sensitive info. Won't be optimized out. */ -static SECP256K1_INLINE void secure_erase(void *ptr, size_t len) { +static void secure_erase(void *ptr, size_t len) { #if defined(_MSC_VER) /* SecureZeroMemory is guaranteed not to be optimized out by MSVC. */ SecureZeroMemory(ptr, len); From 8e142ca4102ade1b90dcb06d6c78405ef3220599 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 9 Mar 2023 15:29:56 +0000 Subject: [PATCH 005/557] Move `SECP256K1_INLINE` macro definition out from `include/secp256k1.h` --- include/secp256k1.h | 12 ------------ src/field_5x52_asm_impl.h | 2 ++ src/field_5x52_int128_impl.h | 1 + src/group_impl.h | 1 + src/int128_native_impl.h | 1 + src/int128_struct_impl.h | 1 + src/modules/extrakeys/main_impl.h | 1 + src/scalar_4x64_impl.h | 1 + src/scalar_8x32_impl.h | 1 + src/scalar_low_impl.h | 1 + src/testrand.h | 2 ++ src/testrand_impl.h | 1 + src/tests_exhaustive.c | 1 + src/util.h | 14 ++++++++++++++ 14 files changed, 28 insertions(+), 12 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 325f35eb04..75ffe40527 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -122,18 +122,6 @@ typedef int (*secp256k1_nonce_function)( # endif # endif -# if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) ) -# if SECP256K1_GNUC_PREREQ(2,7) -# define SECP256K1_INLINE __inline__ -# elif (defined(_MSC_VER)) -# define SECP256K1_INLINE __inline -# else -# define SECP256K1_INLINE -# endif -# else -# define SECP256K1_INLINE inline -# endif - /* When this header is used at build-time the SECP256K1_BUILD define needs to be set * to correctly setup export attributes and nullness checks. This is normally done * by secp256k1.c but to guard against this header being included before secp256k1.c diff --git a/src/field_5x52_asm_impl.h b/src/field_5x52_asm_impl.h index a2118044ab..e8efa61085 100644 --- a/src/field_5x52_asm_impl.h +++ b/src/field_5x52_asm_impl.h @@ -14,6 +14,8 @@ #ifndef SECP256K1_FIELD_INNER5X52_IMPL_H #define SECP256K1_FIELD_INNER5X52_IMPL_H +#include "util.h" + SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t *a, const uint64_t * SECP256K1_RESTRICT b) { /** * Registers: rdx:rax = multiplication accumulator diff --git a/src/field_5x52_int128_impl.h b/src/field_5x52_int128_impl.h index 18567b95f3..b2a391dec9 100644 --- a/src/field_5x52_int128_impl.h +++ b/src/field_5x52_int128_impl.h @@ -10,6 +10,7 @@ #include #include "int128.h" +#include "util.h" #ifdef VERIFY #define VERIFY_BITS(x, n) VERIFY_CHECK(((x) >> (n)) == 0) diff --git a/src/group_impl.h b/src/group_impl.h index 82ce3f8d8b..7ec069a80c 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -9,6 +9,7 @@ #include "field.h" #include "group.h" +#include "util.h" /* Begin of section generated by sage/gen_exhaustive_groups.sage. */ #define SECP256K1_G_ORDER_7 SECP256K1_GE_CONST(\ diff --git a/src/int128_native_impl.h b/src/int128_native_impl.h index 996e542cf9..7f02e1590b 100644 --- a/src/int128_native_impl.h +++ b/src/int128_native_impl.h @@ -2,6 +2,7 @@ #define SECP256K1_INT128_NATIVE_IMPL_H #include "int128.h" +#include "util.h" static SECP256K1_INLINE void secp256k1_u128_load(secp256k1_uint128 *r, uint64_t hi, uint64_t lo) { *r = (((uint128_t)hi) << 64) + lo; diff --git a/src/int128_struct_impl.h b/src/int128_struct_impl.h index 2eb337cb54..3073f314b0 100644 --- a/src/int128_struct_impl.h +++ b/src/int128_struct_impl.h @@ -2,6 +2,7 @@ #define SECP256K1_INT128_STRUCT_IMPL_H #include "int128.h" +#include "util.h" #if defined(_MSC_VER) && (defined(_M_X64) || defined(_M_ARM64)) /* MSVC */ # include diff --git a/src/modules/extrakeys/main_impl.h b/src/modules/extrakeys/main_impl.h index e1003052f4..7352004457 100644 --- a/src/modules/extrakeys/main_impl.h +++ b/src/modules/extrakeys/main_impl.h @@ -9,6 +9,7 @@ #include "../../../include/secp256k1.h" #include "../../../include/secp256k1_extrakeys.h" +#include "../../util.h" static SECP256K1_INLINE int secp256k1_xonly_pubkey_load(const secp256k1_context* ctx, secp256k1_ge *ge, const secp256k1_xonly_pubkey *pubkey) { return secp256k1_pubkey_load(ctx, ge, (const secp256k1_pubkey *) pubkey); diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 1b83575b3e..0809698b12 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -10,6 +10,7 @@ #include "checkmem.h" #include "int128.h" #include "modinv64_impl.h" +#include "util.h" /* Limbs of the secp256k1 order. */ #define SECP256K1_N_0 ((uint64_t)0xBFD25E8CD0364141ULL) diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index c433adce75..92f428796d 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -9,6 +9,7 @@ #include "checkmem.h" #include "modinv32_impl.h" +#include "util.h" /* Limbs of the secp256k1 order. */ #define SECP256K1_N_0 ((uint32_t)0xD0364141UL) diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index e780083339..5ce1c2d2ac 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -9,6 +9,7 @@ #include "checkmem.h" #include "scalar.h" +#include "util.h" #include diff --git a/src/testrand.h b/src/testrand.h index d109bb9f8b..721099d039 100644 --- a/src/testrand.h +++ b/src/testrand.h @@ -7,6 +7,8 @@ #ifndef SECP256K1_TESTRAND_H #define SECP256K1_TESTRAND_H +#include "util.h" + /* A non-cryptographic RNG used only for test infrastructure. */ /** Seed the pseudorandom number generator for testing. */ diff --git a/src/testrand_impl.h b/src/testrand_impl.h index e9b9d7ded4..1b7481a53b 100644 --- a/src/testrand_impl.h +++ b/src/testrand_impl.h @@ -13,6 +13,7 @@ #include "testrand.h" #include "hash.h" +#include "util.h" static uint64_t secp256k1_test_state[4]; static uint64_t secp256k1_test_rng_integer; diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 86b9334cae..ad17d8d392 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -20,6 +20,7 @@ #include "testrand_impl.h" #include "ecmult_compute_table_impl.h" #include "ecmult_gen_compute_table_impl.h" +#include "util.h" static int count = 2; diff --git a/src/util.h b/src/util.h index e75c5ad552..f980f47bdc 100644 --- a/src/util.h +++ b/src/util.h @@ -7,6 +7,8 @@ #ifndef SECP256K1_UTIL_H #define SECP256K1_UTIL_H +#include "../include/secp256k1.h" + #include #include #include @@ -17,6 +19,18 @@ #define DEBUG_CONFIG_MSG(x) "DEBUG_CONFIG: " x #define DEBUG_CONFIG_DEF(x) DEBUG_CONFIG_MSG(#x "=" STR(x)) +# if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) ) +# if SECP256K1_GNUC_PREREQ(2,7) +# define SECP256K1_INLINE __inline__ +# elif (defined(_MSC_VER)) +# define SECP256K1_INLINE __inline +# else +# define SECP256K1_INLINE +# endif +# else +# define SECP256K1_INLINE inline +# endif + typedef struct { void (*fn)(const char *text, void* data); const void* data; From 647f0a5cb16e71ba1d7bc7aa583d6ca61f8abd78 Mon Sep 17 00:00:00 2001 From: roconnor-blockstream Date: Fri, 10 Mar 2023 08:53:33 -0500 Subject: [PATCH 006/557] Update comment for secp256k1_modinv32_inv256 --- src/modinv32_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/modinv32_impl.h b/src/modinv32_impl.h index 643750560e..8e400b697b 100644 --- a/src/modinv32_impl.h +++ b/src/modinv32_impl.h @@ -232,7 +232,7 @@ static int32_t secp256k1_modinv32_divsteps_30(int32_t zeta, uint32_t f0, uint32_ return zeta; } -/* inv256[i] = -(2*i+1)^-1 (mod 256) */ +/* secp256k1_modinv32_inv256[i] = -(2*i+1)^-1 (mod 256) */ static const uint8_t secp256k1_modinv32_inv256[128] = { 0xFF, 0x55, 0x33, 0x49, 0xC7, 0x5D, 0x3B, 0x11, 0x0F, 0xE5, 0xC3, 0x59, 0xD7, 0xED, 0xCB, 0x21, 0x1F, 0x75, 0x53, 0x69, 0xE7, 0x7D, 0x5B, 0x31, From 96dd0625112672e841eea723398cc2a1c3489a30 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Thu, 9 Mar 2023 19:34:07 +0000 Subject: [PATCH 007/557] build: bump CMake minimum requirement to 3.13 Among other things this allows us to link against object libraries. --- CMakeLists.txt | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index ddc6c7e6d4..2ddf91aed0 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,4 +1,4 @@ -cmake_minimum_required(VERSION 3.1) +cmake_minimum_required(VERSION 3.13) if(CMAKE_VERSION VERSION_GREATER 3.14) # MSVC runtime library flags are selected by the CMAKE_MSVC_RUNTIME_LIBRARY abstraction. @@ -203,11 +203,6 @@ else() try_add_compile_option(-Wundef) endif() -if(CMAKE_VERSION VERSION_GREATER 3.2) - # Honor visibility properties for all target types. - # See: https://cmake.org/cmake/help/latest/policy/CMP0063.html - cmake_policy(SET CMP0063 NEW) -endif() set(CMAKE_C_VISIBILITY_PRESET hidden) # Ask CTest to create a "check" target (e.g., make check) as alias for the "test" target. From 8e79c7ed11fa50bd6b8a3d3203b2fc330a0c37ea Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Mar 2023 18:56:24 +0000 Subject: [PATCH 008/557] build: Ensure no optimization when building for coverage analysis --- configure.ac | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/configure.ac b/configure.ac index 1276dfaacd..46c95e30bc 100644 --- a/configure.ac +++ b/configure.ac @@ -29,6 +29,11 @@ AM_INIT_AUTOMAKE([1.11.2 foreign subdir-objects]) # Make the compilation flags quiet unless V=1 is used. m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) +if test "${CFLAGS+set}" = "set"; then + CFLAGS_overridden=yes +else + CFLAGS_overridden=no +fi AC_PROG_CC AM_PROG_AS AM_PROG_AR @@ -241,6 +246,12 @@ fi if test x"$enable_coverage" = x"yes"; then SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOVERAGE=1" SECP_CFLAGS="-O0 --coverage $SECP_CFLAGS" + # If coverage is enabled, and the user has not overridden CFLAGS, + # override Autoconf's value "-g -O2" with "-g". Otherwise we'd end up + # with "-O0 --coverage -g -O2". + if test "$CFLAGS_overridden" = "no"; then + CFLAGS="-g" + fi LDFLAGS="--coverage $LDFLAGS" else # Most likely the CFLAGS already contain -O2 because that is autoconf's default. From 4429a8c218d7bf7bc6de1de88bc31c834f771385 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Mar 2023 20:03:42 +0000 Subject: [PATCH 009/557] Suppress `-Wunused-parameter` when building for coverage analysis --- CMakeLists.txt | 2 +- src/ecmult_impl.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index ddc6c7e6d4..21bcb76a65 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -147,7 +147,7 @@ else() endif() # Define custom "Coverage" build type. -set(CMAKE_C_FLAGS_COVERAGE "${CMAKE_C_FLAGS_RELWITHDEBINFO} -O0 -DCOVERAGE=1 --coverage -Wno-unused-parameter" CACHE STRING +set(CMAKE_C_FLAGS_COVERAGE "${CMAKE_C_FLAGS_RELWITHDEBINFO} -O0 -DCOVERAGE=1 --coverage" CACHE STRING "Flags used by the C compiler during \"Coverage\" builds." FORCE ) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 3776fe73fc..343963c376 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -115,6 +115,7 @@ static void secp256k1_ecmult_odd_multiples_table(int n, secp256k1_ge *pre_a, sec } #define SECP256K1_ECMULT_TABLE_VERIFY(n,w) \ + (void)w; \ VERIFY_CHECK(((n) & 1) == 1); \ VERIFY_CHECK((n) >= -((1 << ((w)-1)) - 1)); \ VERIFY_CHECK((n) <= ((1 << ((w)-1)) - 1)); From fd2a408647ba0f999b7b217977cc68773fa35257 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 15 Mar 2023 09:08:41 +0000 Subject: [PATCH 010/557] Set ARM ASM symbol visibility to `hidden` Co-authored-by: Cory Fields --- src/asm/field_10x26_arm.s | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/asm/field_10x26_arm.s b/src/asm/field_10x26_arm.s index 5f68cefc46..42cbf879ef 100644 --- a/src/asm/field_10x26_arm.s +++ b/src/asm/field_10x26_arm.s @@ -29,6 +29,7 @@ Note: .align 2 .global secp256k1_fe_mul_inner .type secp256k1_fe_mul_inner, %function + .hidden secp256k1_fe_mul_inner @ Arguments: @ r0 r Restrict: can overlap with a, not with b @ r1 a @@ -516,6 +517,7 @@ secp256k1_fe_mul_inner: .align 2 .global secp256k1_fe_sqr_inner .type secp256k1_fe_sqr_inner, %function + .hidden secp256k1_fe_sqr_inner @ Arguments: @ r0 r Can overlap with a @ r1 a From 5bb03c29116409ace8855e64bf2e2b2d45871469 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 21 Mar 2023 15:29:22 +0000 Subject: [PATCH 011/557] Replace `SECP256K1_ECMULT_TABLE_VERIFY` macro by a function --- src/ecmult_impl.h | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 343963c376..bb337e6731 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -114,14 +114,16 @@ static void secp256k1_ecmult_odd_multiples_table(int n, secp256k1_ge *pre_a, sec secp256k1_fe_mul(z, &ai.z, &d.z); } -#define SECP256K1_ECMULT_TABLE_VERIFY(n,w) \ - (void)w; \ - VERIFY_CHECK(((n) & 1) == 1); \ - VERIFY_CHECK((n) >= -((1 << ((w)-1)) - 1)); \ +SECP256K1_INLINE static void secp256k1_ecmult_table_verify(int n, int w) { + (void)n; + (void)w; + VERIFY_CHECK(((n) & 1) == 1); + VERIFY_CHECK((n) >= -((1 << ((w)-1)) - 1)); VERIFY_CHECK((n) <= ((1 << ((w)-1)) - 1)); +} SECP256K1_INLINE static void secp256k1_ecmult_table_get_ge(secp256k1_ge *r, const secp256k1_ge *pre, int n, int w) { - SECP256K1_ECMULT_TABLE_VERIFY(n,w) + secp256k1_ecmult_table_verify(n,w); if (n > 0) { *r = pre[(n-1)/2]; } else { @@ -131,7 +133,7 @@ SECP256K1_INLINE static void secp256k1_ecmult_table_get_ge(secp256k1_ge *r, cons } SECP256K1_INLINE static void secp256k1_ecmult_table_get_ge_lambda(secp256k1_ge *r, const secp256k1_ge *pre, const secp256k1_fe *x, int n, int w) { - SECP256K1_ECMULT_TABLE_VERIFY(n,w) + secp256k1_ecmult_table_verify(n,w); if (n > 0) { secp256k1_ge_set_xy(r, &x[(n-1)/2], &pre[(n-1)/2].y); } else { @@ -141,7 +143,7 @@ SECP256K1_INLINE static void secp256k1_ecmult_table_get_ge_lambda(secp256k1_ge * } SECP256K1_INLINE static void secp256k1_ecmult_table_get_ge_storage(secp256k1_ge *r, const secp256k1_ge_storage *pre, int n, int w) { - SECP256K1_ECMULT_TABLE_VERIFY(n,w) + secp256k1_ecmult_table_verify(n,w); if (n > 0) { secp256k1_ge_from_storage(r, &pre[(n-1)/2]); } else { From 36b0adf1b90139a41fdcb94390d0bb06e9224795 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Fri, 10 Mar 2023 20:21:29 +0000 Subject: [PATCH 012/557] build: remove warning until it's reproducible Also remove the interface it was attached to since it's no longer needed. This removal simplifies the next commit. --- src/CMakeLists.txt | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 26272d0950..43996cc179 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -55,11 +55,6 @@ if(SECP256K1_BUILD_STATIC) list(APPEND ${PROJECT_NAME}_installables secp256k1_static) endif() -add_library(binary_interface INTERFACE) -target_compile_definitions(binary_interface INTERFACE - $<$:_CRT_SECURE_NO_WARNINGS> -) - add_library(link_library INTERFACE) if(SECP256K1_BUILD_SHARED) target_link_libraries(link_library INTERFACE secp256k1) @@ -69,21 +64,17 @@ endif() if(SECP256K1_BUILD_BENCHMARK) add_executable(bench bench.c) - target_link_libraries(bench binary_interface link_library) + target_link_libraries(bench link_library) add_executable(bench_internal bench_internal.c ${internal_obj}) - target_link_libraries(bench_internal binary_interface) add_executable(bench_ecmult bench_ecmult.c ${internal_obj}) - target_link_libraries(bench_ecmult binary_interface) endif() if(SECP256K1_BUILD_TESTS) add_executable(noverify_tests tests.c ${internal_obj}) - target_link_libraries(noverify_tests binary_interface) add_test(noverify_tests noverify_tests) if(NOT CMAKE_BUILD_TYPE STREQUAL "Coverage") add_executable(tests tests.c ${internal_obj}) target_compile_definitions(tests PRIVATE VERIFY) - target_link_libraries(tests binary_interface) add_test(tests tests) endif() endif() @@ -92,13 +83,12 @@ if(SECP256K1_BUILD_EXHAUSTIVE_TESTS) # Note: do not include $ in exhaustive_tests (it uses runtime-generated tables). add_executable(exhaustive_tests tests_exhaustive.c ${common_obj}) target_compile_definitions(exhaustive_tests PRIVATE $<$>:VERIFY>) - target_link_libraries(exhaustive_tests binary_interface) add_test(exhaustive_tests exhaustive_tests) endif() if(SECP256K1_BUILD_CTIME_TESTS) add_executable(ctime_tests ctime_tests.c) - target_link_libraries(ctime_tests binary_interface link_library) + target_link_libraries(ctime_tests link_library) endif() install(TARGETS ${${PROJECT_NAME}_installables} From d1e7ca192d0aef9c5741c9a8d74ced6366b7a7dc Mon Sep 17 00:00:00 2001 From: roconnor-blockstream Date: Wed, 22 Mar 2023 22:01:01 -0400 Subject: [PATCH 013/557] Typo --- src/ecmult_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 3776fe73fc..650fd54d68 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -97,7 +97,7 @@ static void secp256k1_ecmult_odd_multiples_table(int n, secp256k1_ge *pre_a, sec secp256k1_gej_set_ge(&ai, &pre_a[0]); ai.z = a->z; - /* pre_a[0] is the point (a.x*C^2, a.y*C^3, a.z*C) which is equvalent to a. + /* pre_a[0] is the point (a.x*C^2, a.y*C^3, a.z*C) which is equivalent to a. * Set zr[0] to C, which is the ratio between the omitted z(pre_a[0]) value and a.z. */ zr[0] = d.z; From 4ebd82852d3ad00ab579b26173575a4f4642ea76 Mon Sep 17 00:00:00 2001 From: roconnor-blockstream Date: Wed, 22 Mar 2023 22:06:47 -0400 Subject: [PATCH 014/557] Apply Checks only in VERIFY mode. --- src/field_10x26_impl.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 46b72ce78d..d02fdddc69 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1363,7 +1363,9 @@ static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *x) { secp256k1_modinv32(&s, &secp256k1_const_modinfo_fe); secp256k1_fe_from_signed30(r, &s); +#ifdef VERIFY VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == secp256k1_fe_normalizes_to_zero(&tmp)); +#endif } static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { @@ -1376,7 +1378,9 @@ static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { secp256k1_modinv32_var(&s, &secp256k1_const_modinfo_fe); secp256k1_fe_from_signed30(r, &s); +#ifdef VERIFY VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == secp256k1_fe_normalizes_to_zero(&tmp)); +#endif } static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { From 0c07c828340b66d563499a4795844c8325e089e9 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 8 Mar 2023 18:09:14 +0100 Subject: [PATCH 015/557] Add CMake instructions to release process ... and make wording a bit more consistent. Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> --- doc/release-process.md | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/doc/release-process.md b/doc/release-process.md index b522f89657..70a35f0910 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -15,15 +15,20 @@ This process also assumes that there will be no minor releases for old major rel ## Regular release 1. Open a PR to the master branch with a commit (using message `"release: prepare for $MAJOR.$MINOR.$PATCH"`, for example) that - * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) (make sure to include an entry for `### ABI Compatibility`) and - * updates `_PKG_VERSION_*`, `_LIB_VERSION_*`, and sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`. + * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) (make sure to include an entry for `### ABI Compatibility`), + * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` and sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and + * updates `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_*` in `CMakeLists.txt`. 2. After the PR is merged, tag the commit and push it: ``` RELEASE_COMMIT= git tag -s v$MAJOR.$MINOR.$PATCH -m "libsecp256k1 $MAJOR.$MINOR.$PATCH" $RELEASE_COMMIT git push git@github.com:bitcoin-core/secp256k1.git v$MAJOR.$MINOR.$PATCH ``` -3. Open a PR to the master branch with a commit (using message `"release cleanup: bump version after $MAJOR.$MINOR.$PATCH"`, for example) that sets `_PKG_VERSION_IS_RELEASE` to `false` and `_PKG_VERSION_PATCH` to `$PATCH + 1` and increases `_LIB_VERSION_REVISION`. If other maintainers are not present to approve the PR, it can be merged without ACKs. +3. Open a PR to the master branch with a commit (using message `"release cleanup: bump version after $MAJOR.$MINOR.$PATCH"`, for example) that + * sets `_PKG_VERSION_IS_RELEASE` to `false` and increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac`, and + * increments the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt`. + + If other maintainers are not present to approve the PR, it can be merged without ACKs. 4. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). ## Maintenance release @@ -38,7 +43,9 @@ Note that bugfixes only need to be backported to releases for which no compatibl 2. Open a pull request to the `$MAJOR.$MINOR` branch that * includes the bugfixes, * finalizes the release notes, - * bumps `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac` (with commit message `"release: update PKG_ and LIB_VERSION for $MAJOR.$MINOR.$PATCH"`, for example). + * increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac` + and the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt` + (with commit message `"release: bump versions for $MAJOR.$MINOR.$PATCH"`, for example). 3. After the PRs are merged, update the release branch and tag the commit: ``` git checkout $MAJOR.$MINOR && git pull From 3addb4c1e8a50df7dcf4465a7f149f78bf5af78b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 26 Mar 2023 10:38:43 +0100 Subject: [PATCH 016/557] build: Improve `SECP_TRY_APPEND_DEFAULT_CFLAGS` macro Co-authored-by: Tim Ruffing --- configure.ac | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/configure.ac b/configure.ac index 1276dfaacd..1722d0abd8 100644 --- a/configure.ac +++ b/configure.ac @@ -88,11 +88,14 @@ esac AC_DEFUN([SECP_TRY_APPEND_DEFAULT_CFLAGS], [ # GCC and compatible (incl. clang) if test "x$GCC" = "xyes"; then - # Try to append -Werror=unknown-warning-option to CFLAGS temporarily. Otherwise clang will - # not error out if it gets unknown warning flags and the checks here will always succeed - # no matter if clang knows the flag or not. + # Try to append -Werror to CFLAGS temporarily. Otherwise checks for some unsupported + # flags will succeed. + # Note that failure to append -Werror does not necessarily mean that -Werror is not + # supported. The compiler may already be warning about something unrelated, for example + # about some path issue. If that is the case, -Werror cannot be used because all + # of those warnings would be turned into errors. SECP_TRY_APPEND_DEFAULT_CFLAGS_saved_CFLAGS="$CFLAGS" - SECP_TRY_APPEND_CFLAGS([-Werror=unknown-warning-option], CFLAGS) + SECP_TRY_APPEND_CFLAGS([-Werror], CFLAGS) SECP_TRY_APPEND_CFLAGS([-std=c89 -pedantic -Wno-long-long -Wnested-externs -Wshadow -Wstrict-prototypes -Wundef], $1) # GCC >= 3.0, -Wlong-long is implied by -pedantic. SECP_TRY_APPEND_CFLAGS([-Wno-overlength-strings], $1) # GCC >= 4.2, -Woverlength-strings is implied by -pedantic. From 3e43041be68c1288ad9897525a15e21945fb3eb9 Mon Sep 17 00:00:00 2001 From: roconnor-blockstream Date: Mon, 27 Mar 2023 09:29:41 -0400 Subject: [PATCH 017/557] No need to subtract 1 before doing a right shift --- src/int128_struct_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/int128_struct_impl.h b/src/int128_struct_impl.h index 2eb337cb54..cc17bad167 100644 --- a/src/int128_struct_impl.h +++ b/src/int128_struct_impl.h @@ -193,7 +193,7 @@ static SECP256K1_INLINE int secp256k1_i128_check_pow2(const secp256k1_int128 *r, VERIFY_CHECK(n < 127); VERIFY_CHECK(sign == 1 || sign == -1); return n >= 64 ? r->hi == (uint64_t)sign << (n - 64) && r->lo == 0 - : r->hi == (uint64_t)((sign - 1) >> 1) && r->lo == (uint64_t)sign << n; + : r->hi == (uint64_t)(sign >> 1) && r->lo == (uint64_t)sign << n; } #endif From 3d1f430f9f32d45885b0a10b448c0f15386c423d Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 28 Mar 2023 19:39:02 +0000 Subject: [PATCH 018/557] Make position of * in pointer declarations in include/ consistent --- include/secp256k1.h | 98 ++++++++++++++++---------------- include/secp256k1_ecdh.h | 2 +- include/secp256k1_extrakeys.h | 30 +++++----- include/secp256k1_preallocated.h | 14 ++--- include/secp256k1_recovery.h | 18 +++--- include/secp256k1_schnorrsig.h | 10 ++-- 6 files changed, 86 insertions(+), 86 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 325f35eb04..4ce3e500ba 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -288,7 +288,7 @@ SECP256K1_API void secp256k1_selftest(void); * Do not create a new context object for each operation, as construction and * randomization can take non-negligible time. */ -SECP256K1_API secp256k1_context* secp256k1_context_create( +SECP256K1_API secp256k1_context *secp256k1_context_create( unsigned int flags ) SECP256K1_WARN_UNUSED_RESULT; @@ -304,8 +304,8 @@ SECP256K1_API secp256k1_context* secp256k1_context_create( * Returns: a newly created context object. * Args: ctx: an existing context to copy (not secp256k1_context_static) */ -SECP256K1_API secp256k1_context* secp256k1_context_clone( - const secp256k1_context* ctx +SECP256K1_API secp256k1_context *secp256k1_context_clone( + const secp256k1_context *ctx ) SECP256K1_ARG_NONNULL(1) SECP256K1_WARN_UNUSED_RESULT; /** Destroy a secp256k1 context object (created in dynamically allocated memory). @@ -323,7 +323,7 @@ SECP256K1_API secp256k1_context* secp256k1_context_clone( * (i.e., not secp256k1_context_static). */ SECP256K1_API void secp256k1_context_destroy( - secp256k1_context* ctx + secp256k1_context *ctx ) SECP256K1_ARG_NONNULL(1); /** Set a callback function to be called when an illegal argument is passed to @@ -347,8 +347,8 @@ SECP256K1_API void secp256k1_context_destroy( * USE_EXTERNAL_DEFAULT_CALLBACKS is defined, which is the case if the build * has been configured with --enable-external-default-callbacks. Then the * following two symbols must be provided to link against: - * - void secp256k1_default_illegal_callback_fn(const char* message, void* data); - * - void secp256k1_default_error_callback_fn(const char* message, void* data); + * - void secp256k1_default_illegal_callback_fn(const char *message, void *data); + * - void secp256k1_default_error_callback_fn(const char *message, void *data); * The library can call these default handlers even before a proper callback data * pointer could have been set using secp256k1_context_set_illegal_callback or * secp256k1_context_set_error_callback, e.g., when the creation of a context @@ -364,9 +364,9 @@ SECP256K1_API void secp256k1_context_destroy( * See also secp256k1_context_set_error_callback. */ SECP256K1_API void secp256k1_context_set_illegal_callback( - secp256k1_context* ctx, - void (*fun)(const char* message, void* data), - const void* data + secp256k1_context *ctx, + void (*fun)(const char *message, void *data), + const void *data ) SECP256K1_ARG_NONNULL(1); /** Set a callback function to be called when an internal consistency check @@ -392,9 +392,9 @@ SECP256K1_API void secp256k1_context_set_illegal_callback( * See also secp256k1_context_set_illegal_callback. */ SECP256K1_API void secp256k1_context_set_error_callback( - secp256k1_context* ctx, - void (*fun)(const char* message, void* data), - const void* data + secp256k1_context *ctx, + void (*fun)(const char *message, void *data), + const void *data ) SECP256K1_ARG_NONNULL(1); /** Create a secp256k1 scratch space object. @@ -404,8 +404,8 @@ SECP256K1_API void secp256k1_context_set_error_callback( * In: size: amount of memory to be available as scratch space. Some extra * (<100 bytes) will be allocated for extra accounting. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space* secp256k1_scratch_space_create( - const secp256k1_context* ctx, +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space *secp256k1_scratch_space_create( + const secp256k1_context *ctx, size_t size ) SECP256K1_ARG_NONNULL(1); @@ -416,8 +416,8 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space* secp256k1_sc * scratch: space to destroy */ SECP256K1_API void secp256k1_scratch_space_destroy( - const secp256k1_context* ctx, - secp256k1_scratch_space* scratch + const secp256k1_context *ctx, + secp256k1_scratch_space *scratch ) SECP256K1_ARG_NONNULL(1); /** Parse a variable-length public key into the pubkey object. @@ -435,8 +435,8 @@ SECP256K1_API void secp256k1_scratch_space_destroy( * byte 0x06 or 0x07) format public keys. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_parse( - const secp256k1_context* ctx, - secp256k1_pubkey* pubkey, + const secp256k1_context *ctx, + secp256k1_pubkey *pubkey, const unsigned char *input, size_t inputlen ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -457,10 +457,10 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_parse( * compressed format, otherwise SECP256K1_EC_UNCOMPRESSED. */ SECP256K1_API int secp256k1_ec_pubkey_serialize( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *output, size_t *outputlen, - const secp256k1_pubkey* pubkey, + const secp256k1_pubkey *pubkey, unsigned int flags ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); @@ -474,9 +474,9 @@ SECP256K1_API int secp256k1_ec_pubkey_serialize( * pubkey2: second public key to compare */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_cmp( - const secp256k1_context* ctx, - const secp256k1_pubkey* pubkey1, - const secp256k1_pubkey* pubkey2 + const secp256k1_context *ctx, + const secp256k1_pubkey *pubkey1, + const secp256k1_pubkey *pubkey2 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); /** Parse an ECDSA signature in compact (64 bytes) format. @@ -495,8 +495,8 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_cmp( * any message and public key. */ SECP256K1_API int secp256k1_ecdsa_signature_parse_compact( - const secp256k1_context* ctx, - secp256k1_ecdsa_signature* sig, + const secp256k1_context *ctx, + secp256k1_ecdsa_signature *sig, const unsigned char *input64 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -516,8 +516,8 @@ SECP256K1_API int secp256k1_ecdsa_signature_parse_compact( * guaranteed to fail for every message and public key. */ SECP256K1_API int secp256k1_ecdsa_signature_parse_der( - const secp256k1_context* ctx, - secp256k1_ecdsa_signature* sig, + const secp256k1_context *ctx, + secp256k1_ecdsa_signature *sig, const unsigned char *input, size_t inputlen ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -534,10 +534,10 @@ SECP256K1_API int secp256k1_ecdsa_signature_parse_der( * In: sig: a pointer to an initialized signature object */ SECP256K1_API int secp256k1_ecdsa_signature_serialize_der( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *output, size_t *outputlen, - const secp256k1_ecdsa_signature* sig + const secp256k1_ecdsa_signature *sig ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); /** Serialize an ECDSA signature in compact (64 byte) format. @@ -550,9 +550,9 @@ SECP256K1_API int secp256k1_ecdsa_signature_serialize_der( * See secp256k1_ecdsa_signature_parse_compact for details about the encoding. */ SECP256K1_API int secp256k1_ecdsa_signature_serialize_compact( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *output64, - const secp256k1_ecdsa_signature* sig + const secp256k1_ecdsa_signature *sig ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); /** Verify an ECDSA signature. @@ -581,7 +581,7 @@ SECP256K1_API int secp256k1_ecdsa_signature_serialize_compact( * For details, see the comments for that function. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify( - const secp256k1_context* ctx, + const secp256k1_context *ctx, const secp256k1_ecdsa_signature *sig, const unsigned char *msghash32, const secp256k1_pubkey *pubkey @@ -629,7 +629,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify( * secp256k1_ecdsa_signature_normalize must be called before verification. */ SECP256K1_API int secp256k1_ecdsa_signature_normalize( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_ecdsa_signature *sigout, const secp256k1_ecdsa_signature *sigin ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3); @@ -662,7 +662,7 @@ SECP256K1_API_VAR const secp256k1_nonce_function secp256k1_nonce_function_defaul * secp256k1_ecdsa_signature_normalize for more details. */ SECP256K1_API int secp256k1_ecdsa_sign( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_ecdsa_signature *sig, const unsigned char *msghash32, const unsigned char *seckey, @@ -683,7 +683,7 @@ SECP256K1_API int secp256k1_ecdsa_sign( * In: seckey: pointer to a 32-byte secret key. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_verify( - const secp256k1_context* ctx, + const secp256k1_context *ctx, const unsigned char *seckey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); @@ -696,7 +696,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_verify( * In: seckey: pointer to a 32-byte secret key. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_create( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const unsigned char *seckey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -712,14 +712,14 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_create( * seckey will be set to some unspecified value. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_negate( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *seckey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); /** Same as secp256k1_ec_seckey_negate, but DEPRECATED. Will be removed in * future versions. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_negate( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *seckey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_DEPRECATED("Use secp256k1_ec_seckey_negate instead"); @@ -731,7 +731,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_negate( * In/Out: pubkey: pointer to the public key to be negated. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_negate( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *pubkey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); @@ -751,7 +751,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_negate( * is negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_add( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *seckey, const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -759,7 +759,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_add( /** Same as secp256k1_ec_seckey_tweak_add, but DEPRECATED. Will be removed in * future versions. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_add( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *seckey, const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) @@ -779,7 +779,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_add( * is negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_add( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -798,7 +798,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_add( * is negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_mul( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *seckey, const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -806,7 +806,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_mul( /** Same as secp256k1_ec_seckey_tweak_mul, but DEPRECATED. Will be removed in * future versions. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_mul( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *seckey, const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) @@ -824,7 +824,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_mul( * is negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_mul( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -862,7 +862,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_mul( * enhanced protection against side-channel leakage currently. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_context_randomize( - secp256k1_context* ctx, + secp256k1_context *ctx, const unsigned char *seed32 ) SECP256K1_ARG_NONNULL(1); @@ -876,9 +876,9 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_context_randomize( * n: the number of public keys to add together (must be at least 1). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_combine( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *out, - const secp256k1_pubkey * const * ins, + const secp256k1_pubkey * const *ins, size_t n ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -899,7 +899,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_combine( * msglen: length of the message array */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_tagged_sha256( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *hash32, const unsigned char *tag, size_t taglen, diff --git a/include/secp256k1_ecdh.h b/include/secp256k1_ecdh.h index 625061b282..837ae2abe5 100644 --- a/include/secp256k1_ecdh.h +++ b/include/secp256k1_ecdh.h @@ -48,7 +48,7 @@ SECP256K1_API_VAR const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_functio * (can be NULL for secp256k1_ecdh_hash_function_sha256). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdh( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *output, const secp256k1_pubkey *pubkey, const unsigned char *seckey, diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index 3591bc0012..52bba240b4 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -45,8 +45,8 @@ typedef struct { * In: input32: pointer to a serialized xonly_pubkey. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_parse( - const secp256k1_context* ctx, - secp256k1_xonly_pubkey* pubkey, + const secp256k1_context *ctx, + secp256k1_xonly_pubkey *pubkey, const unsigned char *input32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -59,9 +59,9 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_parse( * In: pubkey: a pointer to a secp256k1_xonly_pubkey containing an initialized public key. */ SECP256K1_API int secp256k1_xonly_pubkey_serialize( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *output32, - const secp256k1_xonly_pubkey* pubkey + const secp256k1_xonly_pubkey *pubkey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); /** Compare two x-only public keys using lexicographic order @@ -74,9 +74,9 @@ SECP256K1_API int secp256k1_xonly_pubkey_serialize( * pubkey2: second public key to compare */ SECP256K1_API int secp256k1_xonly_pubkey_cmp( - const secp256k1_context* ctx, - const secp256k1_xonly_pubkey* pk1, - const secp256k1_xonly_pubkey* pk2 + const secp256k1_context *ctx, + const secp256k1_xonly_pubkey *pk1, + const secp256k1_xonly_pubkey *pk2 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); /** Converts a secp256k1_pubkey into a secp256k1_xonly_pubkey. @@ -91,7 +91,7 @@ SECP256K1_API int secp256k1_xonly_pubkey_cmp( * In: pubkey: pointer to a public key that is converted. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_from_pubkey( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_xonly_pubkey *xonly_pubkey, int *pk_parity, const secp256k1_pubkey *pubkey @@ -118,7 +118,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_from_pubke * chance of being invalid is negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *output_pubkey, const secp256k1_xonly_pubkey *internal_pubkey, const unsigned char *tweak32 @@ -148,7 +148,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add( * tweak32: pointer to a 32-byte tweak. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add_check( - const secp256k1_context* ctx, + const secp256k1_context *ctx, const unsigned char *tweaked_pubkey32, int tweaked_pk_parity, const secp256k1_xonly_pubkey *internal_pubkey, @@ -164,7 +164,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add_ * In: seckey: pointer to a 32-byte secret key. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_create( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_keypair *keypair, const unsigned char *seckey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -177,7 +177,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_create( * In: keypair: pointer to a keypair. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_sec( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *seckey, const secp256k1_keypair *keypair ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -191,7 +191,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_sec( * In: keypair: pointer to a keypair. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_pub( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const secp256k1_keypair *keypair ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -211,7 +211,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_pub( * In: keypair: pointer to a keypair. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_pub( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_xonly_pubkey *pubkey, int *pk_parity, const secp256k1_keypair *keypair @@ -237,7 +237,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_pub( * is negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_tweak_add( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_keypair *keypair, const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); diff --git a/include/secp256k1_preallocated.h b/include/secp256k1_preallocated.h index ffa96dd339..f37744777b 100644 --- a/include/secp256k1_preallocated.h +++ b/include/secp256k1_preallocated.h @@ -63,8 +63,8 @@ SECP256K1_API size_t secp256k1_context_preallocated_size( * See also secp256k1_context_randomize (in secp256k1.h) * and secp256k1_context_preallocated_destroy. */ -SECP256K1_API secp256k1_context* secp256k1_context_preallocated_create( - void* prealloc, +SECP256K1_API secp256k1_context *secp256k1_context_preallocated_create( + void *prealloc, unsigned int flags ) SECP256K1_ARG_NONNULL(1) SECP256K1_WARN_UNUSED_RESULT; @@ -75,7 +75,7 @@ SECP256K1_API secp256k1_context* secp256k1_context_preallocated_create( * In: ctx: an existing context to copy. */ SECP256K1_API size_t secp256k1_context_preallocated_clone_size( - const secp256k1_context* ctx + const secp256k1_context *ctx ) SECP256K1_ARG_NONNULL(1) SECP256K1_WARN_UNUSED_RESULT; /** Copy a secp256k1 context object into caller-provided memory. @@ -97,9 +97,9 @@ SECP256K1_API size_t secp256k1_context_preallocated_clone_size( * size at least secp256k1_context_preallocated_size(flags) * bytes, as detailed above. */ -SECP256K1_API secp256k1_context* secp256k1_context_preallocated_clone( - const secp256k1_context* ctx, - void* prealloc +SECP256K1_API secp256k1_context *secp256k1_context_preallocated_clone( + const secp256k1_context *ctx, + void *prealloc ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_WARN_UNUSED_RESULT; /** Destroy a secp256k1 context object that has been created in @@ -124,7 +124,7 @@ SECP256K1_API secp256k1_context* secp256k1_context_preallocated_clone( * (i.e., not secp256k1_context_static). */ SECP256K1_API void secp256k1_context_preallocated_destroy( - secp256k1_context* ctx + secp256k1_context *ctx ) SECP256K1_ARG_NONNULL(1); #ifdef __cplusplus diff --git a/include/secp256k1_recovery.h b/include/secp256k1_recovery.h index 824c604025..b12ca4d972 100644 --- a/include/secp256k1_recovery.h +++ b/include/secp256k1_recovery.h @@ -34,8 +34,8 @@ typedef struct { * recid: the recovery id (0, 1, 2 or 3) */ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_parse_compact( - const secp256k1_context* ctx, - secp256k1_ecdsa_recoverable_signature* sig, + const secp256k1_context *ctx, + secp256k1_ecdsa_recoverable_signature *sig, const unsigned char *input64, int recid ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); @@ -48,9 +48,9 @@ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_parse_compact( * In: sigin: a pointer to a recoverable signature. */ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_convert( - const secp256k1_context* ctx, - secp256k1_ecdsa_signature* sig, - const secp256k1_ecdsa_recoverable_signature* sigin + const secp256k1_context *ctx, + secp256k1_ecdsa_signature *sig, + const secp256k1_ecdsa_recoverable_signature *sigin ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); /** Serialize an ECDSA signature in compact format (64 bytes + recovery id). @@ -62,10 +62,10 @@ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_convert( * In: sig: a pointer to an initialized signature object. */ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_serialize_compact( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *output64, int *recid, - const secp256k1_ecdsa_recoverable_signature* sig + const secp256k1_ecdsa_recoverable_signature *sig ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); /** Create a recoverable ECDSA signature. @@ -82,7 +82,7 @@ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_serialize_compact( * (can be NULL for secp256k1_nonce_function_default). */ SECP256K1_API int secp256k1_ecdsa_sign_recoverable( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_ecdsa_recoverable_signature *sig, const unsigned char *msghash32, const unsigned char *seckey, @@ -100,7 +100,7 @@ SECP256K1_API int secp256k1_ecdsa_sign_recoverable( * msghash32: the 32-byte message hash assumed to be signed. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_recover( - const secp256k1_context* ctx, + const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const secp256k1_ecdsa_recoverable_signature *sig, const unsigned char *msghash32 diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h index 4cd2d98256..733fee5282 100644 --- a/include/secp256k1_schnorrsig.h +++ b/include/secp256k1_schnorrsig.h @@ -82,7 +82,7 @@ SECP256K1_API_VAR const secp256k1_nonce_function_hardened secp256k1_nonce_functi typedef struct { unsigned char magic[4]; secp256k1_nonce_function_hardened noncefp; - void* ndata; + void *ndata; } secp256k1_schnorrsig_extraparams; #define SECP256K1_SCHNORRSIG_EXTRAPARAMS_MAGIC { 0xda, 0x6f, 0xb3, 0x8c } @@ -117,7 +117,7 @@ typedef struct { * argument and for guidance if randomness is expensive. */ SECP256K1_API int secp256k1_schnorrsig_sign32( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *sig64, const unsigned char *msg32, const secp256k1_keypair *keypair, @@ -127,7 +127,7 @@ SECP256K1_API int secp256k1_schnorrsig_sign32( /** Same as secp256k1_schnorrsig_sign32, but DEPRECATED. Will be removed in * future versions. */ SECP256K1_API int secp256k1_schnorrsig_sign( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *sig64, const unsigned char *msg32, const secp256k1_keypair *keypair, @@ -149,7 +149,7 @@ SECP256K1_API int secp256k1_schnorrsig_sign( * extraparams: pointer to a extraparams object (can be NULL) */ SECP256K1_API int secp256k1_schnorrsig_sign_custom( - const secp256k1_context* ctx, + const secp256k1_context *ctx, unsigned char *sig64, const unsigned char *msg, size_t msglen, @@ -168,7 +168,7 @@ SECP256K1_API int secp256k1_schnorrsig_sign_custom( * pubkey: pointer to an x-only public key to verify with (cannot be NULL) */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_schnorrsig_verify( - const secp256k1_context* ctx, + const secp256k1_context *ctx, const unsigned char *sig64, const unsigned char *msg, size_t msglen, From 4a496a36fb07d6cc8c99e591994f4ce0c3b1174c Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 1 Apr 2023 15:35:50 +0900 Subject: [PATCH 019/557] ct: Use volatile "trick" in all fe/scalar cmov implementations Apparently clang 15 is able to compile our cmov code into a branch, at least for fe_cmov and fe_storage_cmov. This commit makes the condition volatile in all cmov implementations (except ge but that one only calls into the fe impls). This is just a quick fix. We should still look into other methods, e.g., asm and #457. We should also consider not caring about constant-time in scalar_low_impl.h We should also consider testing on very new compilers in nightly CI, see https://github.com/bitcoin-core/secp256k1/pull/864#issuecomment-769211867 --- src/field_10x26_impl.h | 6 ++++-- src/field_5x52_impl.h | 6 ++++-- src/scalar_4x64_impl.h | 3 ++- src/scalar_8x32_impl.h | 3 ++- src/scalar_low_impl.h | 3 ++- 5 files changed, 14 insertions(+), 7 deletions(-) diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index d02fdddc69..3b7f4d2480 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1147,8 +1147,9 @@ static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { uint32_t mask0, mask1; + volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->n, sizeof(r->n)); - mask0 = flag + ~((uint32_t)0); + mask0 = vflag + ~((uint32_t)0); mask1 = ~mask0; r->n[0] = (r->n[0] & mask0) | (a->n[0] & mask1); r->n[1] = (r->n[1] & mask0) | (a->n[1] & mask1); @@ -1246,8 +1247,9 @@ static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { static SECP256K1_INLINE void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_fe_storage *a, int flag) { uint32_t mask0, mask1; + volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->n, sizeof(r->n)); - mask0 = flag + ~((uint32_t)0); + mask0 = vflag + ~((uint32_t)0); mask1 = ~mask0; r->n[0] = (r->n[0] & mask0) | (a->n[0] & mask1); r->n[1] = (r->n[1] & mask0) | (a->n[1] & mask1); diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 4c4466eceb..6b97157d0f 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -487,8 +487,9 @@ static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { uint64_t mask0, mask1; + volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->n, sizeof(r->n)); - mask0 = flag + ~((uint64_t)0); + mask0 = vflag + ~((uint64_t)0); mask1 = ~mask0; r->n[0] = (r->n[0] & mask0) | (a->n[0] & mask1); r->n[1] = (r->n[1] & mask0) | (a->n[1] & mask1); @@ -570,8 +571,9 @@ static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { static SECP256K1_INLINE void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_fe_storage *a, int flag) { uint64_t mask0, mask1; + volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->n, sizeof(r->n)); - mask0 = flag + ~((uint64_t)0); + mask0 = vflag + ~((uint64_t)0); mask1 = ~mask0; r->n[0] = (r->n[0] & mask0) | (a->n[0] & mask1); r->n[1] = (r->n[1] & mask0) | (a->n[1] & mask1); diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 1b83575b3e..1959dae986 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -811,8 +811,9 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint64_t mask0, mask1; + volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->d, sizeof(r->d)); - mask0 = flag + ~((uint64_t)0); + mask0 = vflag + ~((uint64_t)0); mask1 = ~mask0; r->d[0] = (r->d[0] & mask0) | (a->d[0] & mask1); r->d[1] = (r->d[1] & mask0) | (a->d[1] & mask1); diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index c433adce75..a2555cbbcd 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -632,8 +632,9 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint32_t mask0, mask1; + volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->d, sizeof(r->d)); - mask0 = flag + ~((uint32_t)0); + mask0 = vflag + ~((uint32_t)0); mask1 = ~mask0; r->d[0] = (r->d[0] & mask0) | (a->d[0] & mask1); r->d[1] = (r->d[1] & mask0) | (a->d[1] & mask1); diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index e780083339..bfd1139110 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -116,8 +116,9 @@ SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint32_t mask0, mask1; + volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r, sizeof(*r)); - mask0 = flag + ~((uint32_t)0); + mask0 = vflag + ~((uint32_t)0); mask1 = ~mask0; *r = (*r & mask0) | (*a & mask1); } From 4485926ace489d87929be5218ae1ff3aa8591006 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sun, 3 Jul 2022 13:51:28 -0400 Subject: [PATCH 020/557] Add x-only ecmult_const version for x=n/d --- src/ecmult_const.h | 21 +++++++ src/ecmult_const_impl.h | 135 ++++++++++++++++++++++++++++++++++++++++ src/tests.c | 63 +++++++++++++++++++ 3 files changed, 219 insertions(+) diff --git a/src/ecmult_const.h b/src/ecmult_const.h index f891f3f306..417f328535 100644 --- a/src/ecmult_const.h +++ b/src/ecmult_const.h @@ -18,4 +18,25 @@ */ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q, int bits); +/** + * Same as secp256k1_ecmult_const, but takes in an x coordinate of the base point + * only, specified as fraction n/d (numerator/denominator). Only the x coordinate of the result is + * returned. + * + * If known_on_curve is 0, a verification is performed that n/d is a valid X + * coordinate, and 0 is returned if not. Otherwise, 1 is returned. + * + * d being NULL is interpreted as d=1. If non-NULL, d must not be zero. q must not be zero. + * + * Constant time in the value of q, but not any other inputs. + */ +static int secp256k1_ecmult_const_xonly( + secp256k1_fe *r, + const secp256k1_fe *n, + const secp256k1_fe *d, + const secp256k1_scalar *q, + int bits, + int known_on_curve +); + #endif /* SECP256K1_ECMULT_CONST_H */ diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index 12dbcc6c5b..f23e0ec89d 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -228,4 +228,139 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons secp256k1_fe_mul(&r->z, &r->z, &Z); } +static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, const secp256k1_fe *d, const secp256k1_scalar *q, int bits, int known_on_curve) { + + /* This algorithm is a generalization of Peter Dettman's technique for + * avoiding the square root in a random-basepoint x-only multiplication + * on a Weierstrass curve: + * https://mailarchive.ietf.org/arch/msg/cfrg/7DyYY6gg32wDgHAhgSb6XxMDlJA/ + * + * + * === Background: the effective affine technique === + * + * Let phi_u be the isomorphism that maps (x, y) on secp256k1 curve y^2 = x^3 + 7 to + * x' = u^2*x, y' = u^3*y on curve y'^2 = x'^3 + u^6*7. This new curve has the same order as + * the original (it is isomorphic), but moreover, has the same addition/doubling formulas, as + * the curve b=7 coefficient does not appear in those formulas (or at least does not appear in + * the formulas implemented in this codebase, both affine and Jacobian). See also Example 9.5.2 + * in https://www.math.auckland.ac.nz/~sgal018/crypto-book/ch9.pdf. + * + * This means any linear combination of secp256k1 points can be computed by applying phi_u + * (with non-zero u) on all input points (including the generator, if used), computing the + * linear combination on the isomorphic curve (using the same group laws), and then applying + * phi_u^{-1} to get back to secp256k1. + * + * Switching to Jacobian coordinates, note that phi_u applied to (X, Y, Z) is simply + * (X, Y, Z/u). Thus, if we want to compute (X1, Y1, Z) + (X2, Y2, Z), with identical Z + * coordinates, we can use phi_Z to transform it to (X1, Y1, 1) + (X2, Y2, 1) on an isomorphic + * curve where the affine addition formula can be used instead. + * If (X3, Y3, Z3) = (X1, Y1) + (X2, Y2) on that curve, then our answer on secp256k1 is + * (X3, Y3, Z3*Z). + * + * This is the effective affine technique: if we have a linear combination of group elements + * to compute, and all those group elements have the same Z coordinate, we can simply pretend + * that all those Z coordinates are 1, perform the computation that way, and then multiply the + * original Z coordinate back in. + * + * The technique works on any a=0 short Weierstrass curve. It is possible to generalize it to + * other curves too, but there the isomorphic curves will have different 'a' coefficients, + * which typically does affect the group laws. + * + * + * === Avoiding the square root for x-only point multiplication === + * + * In this function, we want to compute the X coordinate of q*(n/d, y), for + * y = sqrt((n/d)^3 + 7). Its negation would also be a valid Y coordinate, but by convention + * we pick whatever sqrt returns (which we assume to be a deterministic function). + * + * Let g = y^2*d^3 = n^3 + 7*d^3. This also means y = sqrt(g/d^3). + * Further let v = sqrt(d*g), which must exist as d*g = y^2*d^4 = (y*d^2)^2. + * + * The input point (n/d, y) also has Jacobian coordinates: + * + * (n/d, y, 1) + * = (n/d * v^2, y * v^3, v) + * = (n/d * d*g, y * sqrt(d^3*g^3), v) + * = (n/d * d*g, sqrt(y^2 * d^3*g^3), v) + * = (n*g, sqrt(g/d^3 * d^3*g^3), v) + * = (n*g, sqrt(g^4), v) + * = (n*g, g^2, v) + * + * It is easy to verify that both (n*g, g^2, v) and its negation (n*g, -g^2, v) have affine X + * coordinate n/d, and this holds even when the square root function doesn't have a + * determinstic sign. We choose the (n*g, g^2, v) version. + * + * Now switch to the effective affine curve using phi_v, where the input point has coordinates + * (n*g, g^2). Compute (X, Y, Z) = q * (n*g, g^2) there. + * + * Back on secp256k1, that means q * (n*g, g^2, v) = (X, Y, v*Z). This last point has affine X + * coordinate X / (v^2*Z^2) = X / (d*g*Z^2). Determining the affine Y coordinate would involve + * a square root, but as long as we only care about the resulting X coordinate, no square root + * is needed anywhere in this computation. + */ + + secp256k1_fe g, i; + secp256k1_ge p; + secp256k1_gej rj; + + /* Compute g = (n^3 + B*d^3). */ + secp256k1_fe_sqr(&g, n); + secp256k1_fe_mul(&g, &g, n); + if (d) { + secp256k1_fe b; +#ifdef VERIFY + VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero(d)); +#endif + secp256k1_fe_sqr(&b, d); + VERIFY_CHECK(SECP256K1_B <= 8); /* magnitude of b will be <= 8 after the next call */ + secp256k1_fe_mul_int(&b, SECP256K1_B); + secp256k1_fe_mul(&b, &b, d); + secp256k1_fe_add(&g, &b); + if (!known_on_curve) { + /* We need to determine whether (n/d)^3 + 7 is square. + * + * is_square((n/d)^3 + 7) + * <=> is_square(((n/d)^3 + 7) * d^4) + * <=> is_square((n^3 + 7*d^3) * d) + * <=> is_square(g * d) + */ + secp256k1_fe c; + secp256k1_fe_mul(&c, &g, d); + if (!secp256k1_fe_is_square_var(&c)) return 0; + } + } else { + secp256k1_fe_add_int(&g, SECP256K1_B); + if (!known_on_curve) { + /* g at this point equals x^3 + 7. Test if it is square. */ + if (!secp256k1_fe_is_square_var(&g)) return 0; + } + } + + /* Compute base point P = (n*g, g^2), the effective affine version of (n*g, g^2, v), which has + * corresponding affine X coordinate n/d. */ + secp256k1_fe_mul(&p.x, &g, n); + secp256k1_fe_sqr(&p.y, &g); + p.infinity = 0; + + /* Perform x-only EC multiplication of P with q. */ +#ifdef VERIFY + VERIFY_CHECK(!secp256k1_scalar_is_zero(q)); +#endif + secp256k1_ecmult_const(&rj, &p, q, bits); +#ifdef VERIFY + VERIFY_CHECK(!secp256k1_gej_is_infinity(&rj)); +#endif + + /* The resulting (X, Y, Z) point on the effective-affine isomorphic curve corresponds to + * (X, Y, Z*v) on the secp256k1 curve. The affine version of that has X coordinate + * (X / (Z^2*d*g)). */ + secp256k1_fe_sqr(&i, &rj.z); + secp256k1_fe_mul(&i, &i, &g); + if (d) secp256k1_fe_mul(&i, &i, d); + secp256k1_fe_inv(&i, &i); + secp256k1_fe_mul(r, &rj.x, &i); + + return 1; +} + #endif /* SECP256K1_ECMULT_CONST_IMPL_H */ diff --git a/src/tests.c b/src/tests.c index 1c0d797349..729b7f852e 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4452,6 +4452,68 @@ static void ecmult_const_mult_zero_one(void) { ge_equals_ge(&res2, &point); } +static void ecmult_const_mult_xonly(void) { + int i; + + /* Test correspondence between secp256k1_ecmult_const and secp256k1_ecmult_const_xonly. */ + for (i = 0; i < 2*COUNT; ++i) { + secp256k1_ge base; + secp256k1_gej basej, resj; + secp256k1_fe n, d, resx, v; + secp256k1_scalar q; + int res; + /* Random base point. */ + random_group_element_test(&base); + /* Random scalar to multiply it with. */ + random_scalar_order_test(&q); + /* If i is odd, n=d*base.x for random non-zero d */ + if (i & 1) { + do { + random_field_element_test(&d); + } while (secp256k1_fe_normalizes_to_zero_var(&d)); + secp256k1_fe_mul(&n, &base.x, &d); + } else { + n = base.x; + } + /* Perform x-only multiplication. */ + res = secp256k1_ecmult_const_xonly(&resx, &n, (i & 1) ? &d : NULL, &q, 256, i & 2); + CHECK(res); + /* Perform normal multiplication. */ + secp256k1_gej_set_ge(&basej, &base); + secp256k1_ecmult(&resj, &basej, &q, NULL); + /* Check that resj's X coordinate corresponds with resx. */ + secp256k1_fe_sqr(&v, &resj.z); + secp256k1_fe_mul(&v, &v, &resx); + CHECK(check_fe_equal(&v, &resj.x)); + } + + /* Test that secp256k1_ecmult_const_xonly correctly rejects X coordinates not on curve. */ + for (i = 0; i < 2*COUNT; ++i) { + secp256k1_fe x, n, d, c, r; + int res; + secp256k1_scalar q; + random_scalar_order_test(&q); + /* Generate random X coordinate not on the curve. */ + do { + random_field_element_test(&x); + secp256k1_fe_sqr(&c, &x); + secp256k1_fe_mul(&c, &c, &x); + secp256k1_fe_add(&c, &secp256k1_fe_const_b); + } while (secp256k1_fe_is_square_var(&c)); + /* If i is odd, n=d*x for random non-zero d. */ + if (i & 1) { + do { + random_field_element_test(&d); + } while (secp256k1_fe_normalizes_to_zero_var(&d)); + secp256k1_fe_mul(&n, &x, &d); + } else { + n = x; + } + res = secp256k1_ecmult_const_xonly(&r, &n, (i & 1) ? &d : NULL, &q, 256, 0); + CHECK(res == 0); + } +} + static void ecmult_const_chain_multiply(void) { /* Check known result (randomly generated test problem from sage) */ const secp256k1_scalar scalar = SECP256K1_SCALAR_CONST( @@ -4483,6 +4545,7 @@ static void run_ecmult_const_tests(void) { ecmult_const_random_mult(); ecmult_const_commutativity(); ecmult_const_chain_multiply(); + ecmult_const_mult_xonly(); } typedef struct { From 0f8642079b0f2e4874393792f5854e3c33742cbd Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 10 Jan 2023 20:55:38 -0500 Subject: [PATCH 021/557] Add exhaustive tests for ecmult_const_xonly --- src/tests_exhaustive.c | 48 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 44 insertions(+), 4 deletions(-) diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 86b9334cae..63b6ef03af 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -59,6 +59,19 @@ static void random_fe(secp256k1_fe *x) { } } while(1); } + +static void random_fe_non_zero(secp256k1_fe *nz) { + int tries = 10; + while (--tries >= 0) { + random_fe(nz); + secp256k1_fe_normalize(nz); + if (!secp256k1_fe_is_zero(nz)) { + break; + } + } + /* Infinitesimal probability of spurious failure here */ + CHECK(tries >= 0); +} /** END stolen from tests.c */ static uint32_t num_cores = 1; @@ -174,10 +187,37 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge secp256k1_ecmult(&tmp, &groupj[r_log], &na, &ng); ge_equals_gej(&group[(i * r_log + j) % EXHAUSTIVE_TEST_ORDER], &tmp); - if (i > 0) { - secp256k1_ecmult_const(&tmp, &group[i], &ng, 256); - ge_equals_gej(&group[(i * j) % EXHAUSTIVE_TEST_ORDER], &tmp); - } + } + } + } + + for (j = 0; j < EXHAUSTIVE_TEST_ORDER; j++) { + for (i = 1; i < EXHAUSTIVE_TEST_ORDER; i++) { + int ret; + secp256k1_gej tmp; + secp256k1_fe xn, xd, tmpf; + secp256k1_scalar ng; + + if (skip_section(&iter)) continue; + + secp256k1_scalar_set_int(&ng, j); + + /* Test secp256k1_ecmult_const. */ + secp256k1_ecmult_const(&tmp, &group[i], &ng, 256); + ge_equals_gej(&group[(i * j) % EXHAUSTIVE_TEST_ORDER], &tmp); + + if (j != 0) { + /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, and xd=NULL. */ + ret = secp256k1_ecmult_const_xonly(&tmpf, &group[i].x, NULL, &ng, 256, 0); + CHECK(ret); + CHECK(secp256k1_fe_equal_var(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); + + /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, with random xd. */ + random_fe_non_zero(&xd); + secp256k1_fe_mul(&xn, &xd, &group[i].x); + ret = secp256k1_ecmult_const_xonly(&tmpf, &xn, &xd, &ng, 256, 0); + CHECK(ret); + CHECK(secp256k1_fe_equal_var(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); } } } From e5de45460953c8ae16521b1928ac14de218998a3 Mon Sep 17 00:00:00 2001 From: RandomLattice <128569685+RandomLattice@users.noreply.github.com> Date: Tue, 21 Mar 2023 22:10:59 -0700 Subject: [PATCH 022/557] tests: Add Wycheproof ECDSA vectors Adds a test using the Wycheproof vectors as outlined in #1106. The vectors are taken from the Wycheproof repo. We use a python script to convert the JSON-formatted vectors into C code. Co-authored-by: Sean Andersen <6730974+andozw@users.noreply.github.com> --- Makefile.am | 17 + ci/cirrus.sh | 4 +- src/tests.c | 39 + src/wycheproof/WYCHEPROOF_COPYING | 212 + .../ecdsa_secp256k1_sha256_bitcoin_test.h | 1564 ++++ .../ecdsa_secp256k1_sha256_bitcoin_test.json | 6360 +++++++++++++++++ tools/tests_wycheproof_generate.py | 114 + 7 files changed, 8308 insertions(+), 2 deletions(-) create mode 100644 src/wycheproof/WYCHEPROOF_COPYING create mode 100644 src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h create mode 100644 src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json create mode 100755 tools/tests_wycheproof_generate.py diff --git a/Makefile.am b/Makefile.am index e3fdf4da27..9af8eff9a3 100644 --- a/Makefile.am +++ b/Makefile.am @@ -247,3 +247,20 @@ endif if ENABLE_MODULE_SCHNORRSIG include src/modules/schnorrsig/Makefile.am.include endif + +EXTRA_DIST += src/wycheproof/WYCHEPROOF_COPYING +EXTRA_DIST += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h +EXTRA_DIST += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json +EXTRA_DIST += tools/tests_wycheproof_generate.py + +TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h + +src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json + python3 tools/tests_wycheproof_generate.py $< > $@ + +testvectors: $(TESTVECTORS) + +maintainer-clean-testvectors: clean-testvectors + +clean-testvectors: + rm -f $(TESTVECTORS) diff --git a/ci/cirrus.sh b/ci/cirrus.sh index 8495c39203..b2af03bb5d 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -109,8 +109,8 @@ fi # Rebuild precomputed files (if not cross-compiling). if [ -z "$HOST" ] then - make clean-precomp - make precomp + make clean-precomp clean-testvectors + make precomp testvectors fi # Check that no repo files have been modified by the build. diff --git a/src/tests.c b/src/tests.c index 1c0d797349..60a17f592e 100644 --- a/src/tests.c +++ b/src/tests.c @@ -7306,6 +7306,44 @@ static void run_ecdsa_edge_cases(void) { test_ecdsa_edge_cases(); } +/** Wycheproof tests + +The tests check for known attacks (range checks in (r,s), arithmetic errors, malleability). +*/ +static void test_ecdsa_wycheproof(void) { + #include "wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h" + + int t; + for (t = 0; t < SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS; t++) { + secp256k1_ecdsa_signature signature; + secp256k1_sha256 hasher; + secp256k1_pubkey pubkey; + const unsigned char *msg, *sig, *pk; + unsigned char out[32] = {0}; + int actual_verify = 0; + + memset(&pubkey, 0, sizeof(pubkey)); + pk = &wycheproof_ecdsa_public_keys[testvectors[t].pk_offset]; + CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pk, 65) == 1); + + secp256k1_sha256_initialize(&hasher); + msg = &wycheproof_ecdsa_messages[testvectors[t].msg_offset]; + secp256k1_sha256_write(&hasher, msg, testvectors[t].msg_len); + secp256k1_sha256_finalize(&hasher, out); + + sig = &wycheproof_ecdsa_signatures[testvectors[t].sig_offset]; + if (secp256k1_ecdsa_signature_parse_der(CTX, &signature, sig, testvectors[t].sig_len) == 1) { + actual_verify = secp256k1_ecdsa_verify(CTX, (const secp256k1_ecdsa_signature *)&signature, out, &pubkey); + } + CHECK(testvectors[t].expected_verify == actual_verify); + } +} + +/* Tests cases from Wycheproof test suite. */ +static void run_ecdsa_wycheproof(void) { + test_ecdsa_wycheproof(); +} + #ifdef ENABLE_MODULE_ECDH # include "modules/ecdh/tests_impl.h" #endif @@ -7638,6 +7676,7 @@ int main(int argc, char **argv) { run_ecdsa_sign_verify(); run_ecdsa_end_to_end(); run_ecdsa_edge_cases(); + run_ecdsa_wycheproof(); #ifdef ENABLE_MODULE_RECOVERY /* ECDSA pubkey recovery tests */ diff --git a/src/wycheproof/WYCHEPROOF_COPYING b/src/wycheproof/WYCHEPROOF_COPYING new file mode 100644 index 0000000000..cddf9d9182 --- /dev/null +++ b/src/wycheproof/WYCHEPROOF_COPYING @@ -0,0 +1,212 @@ +* The file `ecdsa_secp256k1_sha256_bitcoin_test.json` in this directory + comes from Google's project Wycheproof with git commit + `b063b4aedae951c69df014cd25fa6d69ae9e8cb9`, see + https://github.com/google/wycheproof/blob/b063b4aedae951c69df014cd25fa6d69ae9e8cb9/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json + +* The file `ecdsa_secp256k1_sha256_bitcoin_test.h` is generated from + `ecdsa_secp256k1_sha256_bitcoin_test.json` using the script + `tests_wycheproof_generate.py`. + +------------------------------------------------------------------------------- + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h new file mode 100644 index 0000000000..736737fd61 --- /dev/null +++ b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h @@ -0,0 +1,1564 @@ +/* Note: this file was autogenerated using tests_wycheproof_generate.py. Do not edit. */ +#define SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS (463) + +typedef struct { + size_t pk_offset; + size_t msg_offset; + size_t msg_len; + size_t sig_offset; + size_t sig_len; + int expected_verify; +} wycheproof_ecdsa_testvector; + +static const unsigned char wycheproof_ecdsa_messages[] = { 0x31,0x32,0x33,0x34,0x30,0x30, + 0x32,0x35,0x35,0x38,0x35, + 0x34,0x32,0x36,0x34,0x37,0x39,0x37,0x32,0x34, + 0x37,0x31,0x33,0x38,0x36,0x38,0x34,0x38,0x39,0x31, + 0x31,0x30,0x33,0x35,0x39,0x33,0x33,0x31,0x36,0x36,0x38, + 0x33,0x39,0x34,0x39,0x34,0x30,0x31,0x32,0x31,0x35, + 0x31,0x33,0x34,0x34,0x32,0x39,0x33,0x30,0x37,0x39, + 0x33,0x37,0x30,0x36,0x32,0x31,0x31,0x37,0x31,0x32, + 0x33,0x34,0x33,0x36,0x38,0x38,0x37,0x31,0x32, + 0x31,0x33,0x35,0x31,0x35,0x33,0x30,0x33,0x37,0x30, + 0x36,0x35,0x35,0x33,0x32,0x30,0x33,0x31,0x32,0x36, + 0x31,0x35,0x36,0x34,0x33,0x34,0x36,0x36,0x30,0x33, + 0x34,0x34,0x32,0x39,0x35,0x33,0x39,0x31,0x31,0x37, + 0x31,0x30,0x39,0x35,0x33,0x32,0x36,0x31,0x33,0x35,0x31, + 0x35,0x39,0x38,0x37,0x33,0x35,0x30,0x30,0x34,0x31, + 0x33,0x34,0x36,0x33,0x30,0x30,0x36,0x38,0x37,0x38, + 0x39,0x38,0x31,0x37,0x33,0x32,0x30,0x32,0x38,0x37, + 0x33,0x32,0x32,0x32,0x30,0x34,0x31,0x30,0x34,0x36, + 0x36,0x36,0x36,0x36,0x33,0x30,0x37,0x31,0x30,0x34, + 0x31,0x30,0x33,0x35,0x39,0x35,0x31,0x38,0x39,0x38, + 0x31,0x38,0x34,0x36,0x35,0x39,0x37,0x31,0x39,0x35, + 0x33,0x31,0x33,0x36,0x30,0x34,0x36,0x31,0x38,0x39, + 0x32,0x36,0x36,0x33,0x37,0x38,0x34,0x32,0x35,0x34, + 0x31,0x36,0x35,0x32,0x31,0x30,0x30,0x35,0x32,0x34, + 0x35,0x37,0x34,0x38,0x30,0x38,0x31,0x36,0x39,0x36, + 0x36,0x33,0x34,0x33,0x39,0x31,0x33,0x34,0x36,0x38, + 0x31,0x35,0x34,0x31,0x31,0x30,0x33,0x35,0x39,0x38, + 0x31,0x30,0x34,0x37,0x38,0x35,0x38,0x30,0x31,0x32,0x38, + 0x31,0x30,0x35,0x33,0x36,0x32,0x38,0x35,0x35,0x36,0x38, + 0x39,0x35,0x33,0x39,0x30,0x34,0x31,0x30,0x35, + 0x39,0x37,0x38,0x38,0x34,0x38,0x30,0x33,0x39, + 0x33,0x36,0x31,0x30,0x36,0x37,0x32,0x34,0x34,0x32, + 0x31,0x30,0x35,0x34,0x32,0x34,0x30,0x37,0x30,0x35, + 0x35,0x31,0x37,0x34,0x34,0x34,0x38,0x31,0x39,0x37, + 0x31,0x39,0x36,0x37,0x35,0x36,0x31,0x32,0x35,0x31, + 0x33,0x34,0x34,0x37,0x32,0x35,0x33,0x33,0x34,0x33, + 0x33,0x36,0x38,0x32,0x36,0x34,0x33,0x31,0x38, + 0x33,0x32,0x36,0x31,0x31,0x39,0x38,0x36,0x30,0x38, + 0x39,0x36,0x37,0x38,0x37,0x38,0x31,0x30,0x39,0x34, + 0x34,0x39,0x35,0x38,0x38,0x32,0x33,0x38,0x32,0x33, + 0x38,0x32,0x34,0x36,0x33,0x37,0x38,0x33,0x37, + 0x31,0x31,0x30,0x32,0x30,0x38,0x33,0x33,0x37,0x37,0x36, + 0x31,0x33,0x33,0x38,0x37,0x31,0x36,0x34,0x38, + 0x33,0x32,0x32,0x31,0x34,0x34,0x31,0x36,0x32, + 0x31,0x30,0x36,0x38,0x36,0x36,0x35,0x35,0x35,0x34,0x36, + 0x36,0x32,0x31,0x35,0x35,0x32,0x34,0x36, + 0x37,0x30,0x33,0x30,0x38,0x31,0x38,0x37,0x37,0x34, + 0x35,0x39,0x32,0x34,0x35,0x32,0x33,0x37,0x34,0x34, + 0x31,0x34,0x39,0x35,0x35,0x38,0x36,0x36,0x32,0x31, + 0x34,0x30,0x30,0x35,0x33,0x31,0x34,0x34,0x30,0x36, + 0x33,0x30,0x39,0x36,0x34,0x35,0x37,0x35,0x31,0x32, + 0x32,0x37,0x38,0x34,0x30,0x32,0x35,0x36,0x32,0x30, + 0x32,0x36,0x31,0x38,0x37,0x38,0x37,0x34,0x31,0x38, + 0x31,0x36,0x34,0x32,0x36,0x32,0x35,0x32,0x36,0x32, + 0x36,0x38,0x32,0x34,0x31,0x38,0x39,0x34,0x33,0x36, + 0x34,0x38,0x34,0x32,0x34,0x35,0x34,0x32,0x35, + 0x4d,0x73,0x67, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x4d,0x65,0x73,0x73,0x61,0x67,0x65}; + +static const unsigned char wycheproof_ecdsa_public_keys[] = { 0x04,0xb8,0x38,0xff,0x44,0xe5,0xbc,0x17,0x7b,0xf2,0x11,0x89,0xd0,0x76,0x60,0x82,0xfc,0x9d,0x84,0x32,0x26,0x88,0x7f,0xc9,0x76,0x03,0x71,0x10,0x0b,0x7e,0xe2,0x0a,0x6f,0xf0,0xc9,0xd7,0x5b,0xfb,0xa7,0xb3,0x1a,0x6b,0xca,0x19,0x74,0x49,0x6e,0xeb,0x56,0xde,0x35,0x70,0x71,0x95,0x5d,0x83,0xc4,0xb1,0xba,0xda,0xa0,0xb2,0x18,0x32,0xe9, + 0x04,0x07,0x31,0x0f,0x90,0xa9,0xea,0xe1,0x49,0xa0,0x84,0x02,0xf5,0x41,0x94,0xa0,0xf7,0xb4,0xac,0x42,0x7b,0xf8,0xd9,0xbd,0x6c,0x76,0x81,0x07,0x1d,0xc4,0x7d,0xc3,0x62,0x26,0xa6,0xd3,0x7a,0xc4,0x6d,0x61,0xfd,0x60,0x0c,0x0b,0xf1,0xbf,0xf8,0x76,0x89,0xed,0x11,0x7d,0xda,0x6b,0x0e,0x59,0x31,0x8a,0xe0,0x10,0xa1,0x97,0xa2,0x6c,0xa0, + 0x04,0xbc,0x97,0xe7,0x58,0x5e,0xec,0xad,0x48,0xe1,0x66,0x83,0xbc,0x40,0x91,0x70,0x8e,0x1a,0x93,0x0c,0x68,0x3f,0xc4,0x70,0x01,0xd4,0xb3,0x83,0x59,0x4f,0x2c,0x4e,0x22,0x70,0x59,0x89,0xcf,0x69,0xda,0xea,0xdd,0x4e,0x4e,0x4b,0x81,0x51,0xed,0x88,0x8d,0xfe,0xc2,0x0f,0xb0,0x17,0x28,0xd8,0x9d,0x56,0xb3,0xf3,0x8f,0x2a,0xe9,0xc8,0xc5, + 0x04,0x44,0xad,0x33,0x9a,0xfb,0xc2,0x1e,0x9a,0xbf,0x7b,0x60,0x2a,0x5c,0xa5,0x35,0xea,0x37,0x81,0x35,0xb6,0xd1,0x0d,0x81,0x31,0x0b,0xdd,0x82,0x93,0xd1,0xdf,0x32,0x52,0xb6,0x3f,0xf7,0xd0,0x77,0x47,0x70,0xf8,0xfe,0x1d,0x17,0x22,0xfa,0x83,0xac,0xd0,0x2f,0x43,0x4e,0x4f,0xc1,0x10,0xa0,0xcc,0x8f,0x6d,0xdd,0xd3,0x7d,0x56,0xc4,0x63, + 0x04,0x12,0x60,0xc2,0x12,0x2c,0x9e,0x24,0x4e,0x1a,0xf5,0x15,0x1b,0xed,0xe0,0xc3,0xae,0x23,0xb5,0x4d,0x7c,0x59,0x68,0x81,0xd3,0xee,0xba,0xd2,0x1f,0x37,0xdd,0x87,0x8c,0x5c,0x9a,0x0c,0x1a,0x9a,0xde,0x76,0x73,0x7a,0x88,0x11,0xbd,0x6a,0x7f,0x92,0x87,0xc9,0x78,0xee,0x39,0x6a,0xa8,0x9c,0x11,0xe4,0x72,0x29,0xd2,0xcc,0xb5,0x52,0xf0, + 0x04,0x18,0x77,0x04,0x5b,0xe2,0x5d,0x34,0xa1,0xd0,0x60,0x0f,0x9d,0x5c,0x00,0xd0,0x64,0x5a,0x2a,0x54,0x37,0x9b,0x6c,0xee,0xfa,0xd2,0xe6,0xbf,0x5c,0x2a,0x33,0x52,0xce,0x82,0x1a,0x53,0x2c,0xc1,0x75,0x1e,0xe1,0xd3,0x6d,0x41,0xc3,0xd6,0xab,0x4e,0x9b,0x14,0x3e,0x44,0xec,0x46,0xd7,0x34,0x78,0xea,0x6a,0x79,0xa5,0xc0,0xe5,0x41,0x59, + 0x04,0x45,0x54,0x39,0xfc,0xc3,0xd2,0xde,0xec,0xed,0xde,0xae,0xce,0x60,0xe7,0xbd,0x17,0x30,0x4f,0x36,0xeb,0xb6,0x02,0xad,0xf5,0xa2,0x2e,0x0b,0x8f,0x1d,0xb4,0x6a,0x50,0xae,0xc3,0x8f,0xb2,0xba,0xf2,0x21,0xe9,0xa8,0xd1,0x88,0x7c,0x7b,0xf6,0x22,0x2d,0xd1,0x83,0x46,0x34,0xe7,0x72,0x63,0x31,0x5a,0xf6,0xd2,0x36,0x09,0xd0,0x4f,0x77, + 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0x04,0x1f,0x57,0x99,0xc9,0x5b,0xe8,0x90,0x63,0xb2,0x4f,0x26,0xe4,0x0c,0xb9,0x28,0xc1,0xa8,0x68,0xa7,0x6f,0xb0,0x09,0x46,0x07,0xe8,0x04,0x3d,0xb4,0x09,0xc9,0x1c,0x32,0xe7,0x57,0x24,0xe8,0x13,0xa4,0x19,0x1e,0x3a,0x83,0x90,0x07,0xf0,0x8e,0x2e,0x89,0x73,0x88,0xb0,0x6d,0x4a,0x00,0xde,0x6d,0xe6,0x0e,0x53,0x6d,0x91,0xfa,0xb5,0x66, + 0x04,0xa3,0x33,0x1a,0x4e,0x1b,0x42,0x23,0xec,0x2c,0x02,0x7e,0xdd,0x48,0x2c,0x92,0x8a,0x14,0xed,0x35,0x8d,0x93,0xf1,0xd4,0x21,0x7d,0x39,0xab,0xf6,0x9f,0xcb,0x5c,0xcc,0x28,0xd6,0x84,0xd2,0xaa,0xab,0xcd,0x63,0x83,0x77,0x5c,0xaa,0x62,0x39,0xde,0x26,0xd4,0xc6,0x93,0x7b,0xb6,0x03,0xec,0xb4,0x19,0x60,0x82,0xf4,0xcf,0xfd,0x50,0x9d, + 0x04,0x3f,0x39,0x52,0x19,0x97,0x74,0xc7,0xcf,0x39,0xb3,0x8b,0x66,0xcb,0x10,0x42,0xa6,0x26,0x0d,0x86,0x80,0x80,0x38,0x45,0xe4,0xd4,0x33,0xad,0xba,0x3b,0xb2,0x48,0x18,0x5e,0xa4,0x95,0xb6,0x8c,0xbc,0x7e,0xd4,0x17,0x3e,0xe6,0x3c,0x90,0x42,0xdc,0x50,0x26,0x25,0xc7,0xeb,0x7e,0x21,0xfb,0x02,0xca,0x9a,0x91,0x14,0xe0,0xa3,0xa1,0x8d, + 0x04,0xcd,0xfb,0x8c,0x0f,0x42,0x2e,0x14,0x4e,0x13,0x7c,0x24,0x12,0xc8,0x6c,0x17,0x1f,0x5f,0xe3,0xfa,0x3f,0x5b,0xbb,0x54,0x4e,0x90,0x76,0x28,0x8f,0x3c,0xed,0x78,0x6e,0x05,0x4f,0xd0,0x72,0x1b,0x77,0xc1,0x1c,0x79,0xbe,0xac,0xb3,0xc9,0x42,0x11,0xb0,0xa1,0x9b,0xda,0x08,0x65,0x2e,0xfe,0xaf,0x92,0x51,0x3a,0x3b,0x0a,0x16,0x36,0x98, + 0x04,0x73,0x59,0x8a,0x6a,0x1c,0x68,0x27,0x8f,0xa6,0xbf,0xd0,0xce,0x40,0x64,0xe6,0x82,0x35,0xbc,0x1c,0x0f,0x6b,0x20,0xa9,0x28,0x10,0x8b,0xe3,0x36,0x73,0x0f,0x87,0xe3,0xcb,0xae,0x61,0x25,0x19,0xb5,0x03,0x2e,0xcc,0x85,0xae,0xd8,0x11,0x27,0x1a,0x95,0xfe,0x79,0x39,0xd5,0xd3,0x46,0x01,0x40,0xba,0x31,0x8f,0x4d,0x14,0xab,0xa3,0x1d, + 0x04,0x58,0xde,0xbd,0x9a,0x7e,0xe2,0xc9,0xd5,0x91,0x32,0x47,0x8a,0x54,0x40,0xae,0x4d,0x5d,0x7e,0xd4,0x37,0x30,0x83,0x69,0xf9,0x2e,0xa8,0x6c,0x82,0x18,0x3f,0x10,0xa1,0x67,0x73,0xe7,0x6f,0x5e,0xdb,0xf4,0xda,0x0e,0x4f,0x1b,0xdf,0xfa,0xc0,0xf5,0x72,0x57,0xe1,0xdf,0xa4,0x65,0x84,0x29,0x31,0x30,0x9a,0x24,0x24,0x5f,0xda,0x6a,0x5d, + 0x04,0x8b,0x90,0x4d,0xe4,0x79,0x67,0x34,0x0c,0x5f,0x8c,0x35,0x72,0xa7,0x20,0x92,0x4e,0xf7,0x57,0x86,0x37,0xfe,0xab,0x19,0x49,0xac,0xb2,0x41,0xa5,0xa6,0xac,0x3f,0x5b,0x95,0x09,0x04,0x49,0x6f,0x98,0x24,0xb1,0xd6,0x3f,0x33,0x13,0xba,0xe2,0x1b,0x89,0xfa,0xe8,0x9a,0xfd,0xfc,0x81,0x1b,0x5e,0xce,0x03,0xfd,0x5a,0xa3,0x01,0x86,0x4f, + 0x04,0xf4,0x89,0x2b,0x6d,0x52,0x5c,0x77,0x1e,0x03,0x5f,0x2a,0x25,0x27,0x08,0xf3,0x78,0x4e,0x48,0x23,0x86,0x04,0xb4,0xf9,0x4d,0xc5,0x6e,0xaa,0x1e,0x54,0x6d,0x94,0x1a,0x34,0x6b,0x1a,0xa0,0xbc,0xe6,0x8b,0x1c,0x50,0xe5,0xb5,0x2f,0x50,0x9f,0xb5,0x52,0x2e,0x5c,0x25,0xe0,0x28,0xbc,0x8f,0x86,0x34,0x02,0xed,0xb7,0xbc,0xad,0x8b,0x1b, + 0x04,0x79,0xbe,0x66,0x7e,0xf9,0xdc,0xbb,0xac,0x55,0xa0,0x62,0x95,0xce,0x87,0x0b,0x07,0x02,0x9b,0xfc,0xdb,0x2d,0xce,0x28,0xd9,0x59,0xf2,0x81,0x5b,0x16,0xf8,0x17,0x98,0x48,0x3a,0xda,0x77,0x26,0xa3,0xc4,0x65,0x5d,0xa4,0xfb,0xfc,0x0e,0x11,0x08,0xa8,0xfd,0x17,0xb4,0x48,0xa6,0x85,0x54,0x19,0x9c,0x47,0xd0,0x8f,0xfb,0x10,0xd4,0xb8, + 0x04,0x79,0xbe,0x66,0x7e,0xf9,0xdc,0xbb,0xac,0x55,0xa0,0x62,0x95,0xce,0x87,0x0b,0x07,0x02,0x9b,0xfc,0xdb,0x2d,0xce,0x28,0xd9,0x59,0xf2,0x81,0x5b,0x16,0xf8,0x17,0x98,0xb7,0xc5,0x25,0x88,0xd9,0x5c,0x3b,0x9a,0xa2,0x5b,0x04,0x03,0xf1,0xee,0xf7,0x57,0x02,0xe8,0x4b,0xb7,0x59,0x7a,0xab,0xe6,0x63,0xb8,0x2f,0x6f,0x04,0xef,0x27,0x77, + 0x04,0x78,0x2c,0x8e,0xd1,0x7e,0x3b,0x2a,0x78,0x3b,0x54,0x64,0xf3,0x3b,0x09,0x65,0x2a,0x71,0xc6,0x78,0xe0,0x5e,0xc5,0x1e,0x84,0xe2,0xbc,0xfc,0x66,0x3a,0x3d,0xe9,0x63,0xaf,0x9a,0xcb,0x42,0x80,0xb8,0xc7,0xf7,0xc4,0x2f,0x4e,0xf9,0xab,0xa6,0x24,0x5e,0xc1,0xec,0x17,0x12,0xfd,0x38,0xa0,0xfa,0x96,0x41,0x8d,0x8c,0xd6,0xaa,0x61,0x52, + 0x04,0x6e,0x82,0x35,0x55,0x45,0x29,0x14,0x09,0x91,0x82,0xc6,0xb2,0xc1,0xd6,0xf0,0xb5,0xd2,0x8d,0x50,0xcc,0xd0,0x05,0xaf,0x2c,0xe1,0xbb,0xa5,0x41,0xaa,0x40,0xca,0xff,0x00,0x00,0x00,0x01,0x06,0x04,0x92,0xd5,0xa5,0x67,0x3e,0x0f,0x25,0xd8,0xd5,0x0f,0xb7,0xe5,0x8c,0x49,0xd8,0x6d,0x46,0xd4,0x21,0x69,0x55,0xe0,0xaa,0x3d,0x40,0xe1, + 0x04,0x6e,0x82,0x35,0x55,0x45,0x29,0x14,0x09,0x91,0x82,0xc6,0xb2,0xc1,0xd6,0xf0,0xb5,0xd2,0x8d,0x50,0xcc,0xd0,0x05,0xaf,0x2c,0xe1,0xbb,0xa5,0x41,0xaa,0x40,0xca,0xff,0xff,0xff,0xff,0xfe,0xf9,0xfb,0x6d,0x2a,0x5a,0x98,0xc1,0xf0,0xda,0x27,0x2a,0xf0,0x48,0x1a,0x73,0xb6,0x27,0x92,0xb9,0x2b,0xde,0x96,0xaa,0x1e,0x55,0xc2,0xbb,0x4e, + 0x04,0x00,0x00,0x00,0x01,0x3f,0xd2,0x22,0x48,0xd6,0x4d,0x95,0xf7,0x3c,0x29,0xb4,0x8a,0xb4,0x86,0x31,0x85,0x0b,0xe5,0x03,0xfd,0x00,0xf8,0x46,0x8b,0x5f,0x0f,0x70,0xe0,0xf6,0xee,0x7a,0xa4,0x3b,0xc2,0xc6,0xfd,0x25,0xb1,0xd8,0x26,0x92,0x41,0xcb,0xdd,0x9d,0xbb,0x0d,0xac,0x96,0xdc,0x96,0x23,0x1f,0x43,0x07,0x05,0xf8,0x38,0x71,0x7d, + 0x04,0x25,0xaf,0xd6,0x89,0xac,0xab,0xae,0xd6,0x7c,0x1f,0x29,0x6d,0xe5,0x94,0x06,0xf8,0xc5,0x50,0xf5,0x71,0x46,0xa0,0xb4,0xec,0x2c,0x97,0x87,0x6d,0xff,0xff,0xff,0xff,0xfa,0x46,0xa7,0x6e,0x52,0x03,0x22,0xdf,0xbc,0x49,0x1e,0xc4,0xf0,0xcc,0x19,0x74,0x20,0xfc,0x4e,0xa5,0x88,0x3d,0x8f,0x6d,0xd5,0x3c,0x35,0x4b,0xc4,0xf6,0x7c,0x35, + 0x04,0xd1,0x2e,0x6c,0x66,0xb6,0x77,0x34,0xc3,0xc8,0x4d,0x26,0x01,0xcf,0x5d,0x35,0xdc,0x09,0x7e,0x27,0x63,0x7f,0x0a,0xca,0x4a,0x4f,0xdb,0x74,0xb6,0xaa,0xdd,0x3b,0xb9,0x3f,0x5b,0xdf,0xf8,0x8b,0xd5,0x73,0x6d,0xf8,0x98,0xe6,0x99,0x00,0x6e,0xd7,0x50,0xf1,0x1c,0xf0,0x7c,0x58,0x66,0xcd,0x7a,0xd7,0x0c,0x71,0x21,0xff,0xff,0xff,0xff, + 0x04,0x6d,0x4a,0x7f,0x60,0xd4,0x77,0x4a,0x4f,0x0a,0xa8,0xbb,0xde,0xdb,0x95,0x3c,0x7e,0xea,0x79,0x09,0x40,0x7e,0x31,0x64,0x75,0x56,0x64,0xbc,0x28,0x00,0x00,0x00,0x00,0xe6,0x59,0xd3,0x4e,0x4d,0xf3,0x8d,0x9e,0x8c,0x9e,0xaa,0xdf,0xba,0x36,0x61,0x2c,0x76,0x91,0x95,0xbe,0x86,0xc7,0x7a,0xac,0x3f,0x36,0xe7,0x8b,0x53,0x86,0x80,0xfb}; + +static const unsigned char wycheproof_ecdsa_signatures[] = { 0x30,0x46,0x02,0x21,0x00,0x81,0x3e,0xf7,0x9c,0xce,0xfa,0x9a,0x56,0xf7,0xba,0x80,0x5f,0x0e,0x47,0x85,0x84,0xfe,0x5f,0x0d,0xd5,0xf5,0x67,0xbc,0x09,0xb5,0x12,0x3c,0xcb,0xc9,0x83,0x23,0x65,0x02,0x21,0x00,0x90,0x0e,0x75,0xad,0x23,0x3f,0xcc,0x90,0x85,0x09,0xdb,0xff,0x59,0x22,0x64,0x7d,0xb3,0x7c,0x21,0xf4,0xaf,0xd3,0x20,0x3a,0xe8,0xdc,0x4a,0xe7,0x79,0x4b,0x0f,0x87, + 0x30,0x45,0x02,0x21,0x00,0x81,0x3e,0xf7,0x9c,0xce,0xfa,0x9a,0x56,0xf7,0xba,0x80,0x5f,0x0e,0x47,0x85,0x84,0xfe,0x5f,0x0d,0xd5,0xf5,0x67,0xbc,0x09,0xb5,0x12,0x3c,0xcb,0xc9,0x83,0x23,0x65,0x02,0x20,0x6f,0xf1,0x8a,0x52,0xdc,0xc0,0x33,0x6f,0x7a,0xf6,0x24,0x00,0xa6,0xdd,0x9b,0x81,0x07,0x32,0xba,0xf1,0xff,0x75,0x80,0x00,0xd6,0xf6,0x13,0xa5,0x56,0xeb,0x31,0xba, + 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0x30,0x45,0x02,0x21,0x00,0xb6,0x15,0x69,0x8c,0x35,0x8b,0x35,0x92,0x0d,0xd8,0x83,0xec,0xa6,0x25,0xa6,0xc5,0xf7,0x56,0x39,0x70,0xcd,0xfc,0x37,0x8f,0x8f,0xe0,0xce,0xe1,0x70,0x92,0x14,0x4c,0x02,0x20,0x25,0xf4,0x7b,0x32,0x6b,0x5b,0xe1,0xfb,0x61,0x0b,0x88,0x51,0x53,0xea,0x84,0xd4,0x1e,0xb4,0x71,0x6b,0xe6,0x6a,0x99,0x4e,0x87,0x79,0x98,0x9d,0xf1,0xc8,0x63,0xd4, + 0x30,0x45,0x02,0x21,0x00,0x87,0xcf,0x8c,0x0e,0xb8,0x2d,0x44,0xf6,0x9c,0x60,0xa2,0xff,0x54,0x57,0xd3,0xaa,0xa3,0x22,0xe7,0xec,0x61,0xae,0x5a,0xec,0xfd,0x67,0x8a,0xe1,0xc1,0x93,0x2b,0x0e,0x02,0x20,0x3a,0xdd,0x3b,0x11,0x58,0x15,0x04,0x7d,0x6e,0xb3,0x40,0xa3,0xe0,0x08,0x98,0x9e,0xaa,0x0f,0x87,0x08,0xd1,0x79,0x48,0x14,0x72,0x90,0x94,0xd0,0x8d,0x24,0x60,0xd3, + 0x30,0x44,0x02,0x20,0x62,0xf4,0x8e,0xf7,0x1a,0xce,0x27,0xbf,0x5a,0x01,0x83,0x4d,0xe1,0xf7,0xe3,0xf9,0x48,0xb9,0xdc,0xe1,0xca,0x1e,0x91,0x1d,0x5e,0x13,0xd3,0xb1,0x04,0x47,0x1d,0x82,0x02,0x20,0x5e,0xa8,0xf3,0x3f,0x0c,0x77,0x89,0x72,0xc4,0x58,0x20,0x80,0xde,0xda,0x9b,0x34,0x18,0x57,0xdd,0x64,0x51,0x4f,0x08,0x49,0xa0,0x5f,0x69,0x64,0xc2,0xe3,0x40,0x22, + 0x30,0x45,0x02,0x21,0x00,0xf6,0xb0,0xe2,0xf6,0xfe,0x02,0x0c,0xf7,0xc0,0xc2,0x01,0x37,0x43,0x43,0x44,0xed,0x7a,0xdd,0x6c,0x4b,0xe5,0x18,0x61,0xe2,0xd1,0x4c,0xbd,0xa4,0x72,0xa6,0xff,0xb4,0x02,0x20,0x64,0x16,0xc8,0xdd,0x3e,0x5c,0x52,0x82,0xb3,0x06,0xe8,0xdc,0x8f,0xf3,0x4a,0xb6,0x4c,0xc9,0x95,0x49,0x23,0x2d,0x67,0x8d,0x71,0x44,0x02,0xeb,0x6c,0xa7,0xaa,0x0f, + 0x30,0x45,0x02,0x21,0x00,0xdb,0x09,0xd8,0x46,0x0f,0x05,0xef,0xf2,0x3b,0xc7,0xe4,0x36,0xb6,0x7d,0xa5,0x63,0xfa,0x4b,0x4e,0xdb,0x58,0xac,0x24,0xce,0x20,0x1f,0xa8,0xa3,0x58,0x12,0x50,0x57,0x02,0x20,0x46,0xda,0x11,0x67,0x54,0x60,0x29,0x40,0xc8,0x99,0x9c,0x8d,0x66,0x5f,0x78,0x6c,0x50,0xf5,0x77,0x2c,0x0a,0x3c,0xdb,0xda,0x07,0x5e,0x77,0xea,0xbc,0x64,0xdf,0x16, + 0x30,0x44,0x02,0x20,0x59,0x2c,0x41,0xe1,0x65,0x17,0xf1,0x2f,0xca,0xbd,0x98,0x26,0x76,0x74,0xf9,0x74,0xb5,0x88,0xe9,0xf3,0x5d,0x35,0x40,0x6c,0x1a,0x7b,0xb2,0xed,0x1d,0x19,0xb7,0xb8,0x02,0x20,0x3e,0x65,0xa0,0x6b,0xd9,0xf8,0x3c,0xaa,0xeb,0x7b,0x00,0xf2,0x36,0x8d,0x7e,0x0d,0xec,0xe6,0xb1,0x22,0x21,0x26,0x9a,0x9b,0x5b,0x76,0x51,0x98,0xf8,0x40,0xa3,0xa1, + 0x30,0x45,0x02,0x21,0x00,0xbe,0x0d,0x70,0x88,0x7d,0x5e,0x40,0x82,0x1a,0x61,0xb6,0x80,0x47,0xde,0x4e,0xa0,0x3d,0xeb,0xfd,0xf5,0x1c,0xdf,0x4d,0x4b,0x19,0x55,0x58,0xb9,0x59,0xa0,0x32,0xb2,0x02,0x20,0x7d,0x99,0x4b,0x2d,0x8f,0x1d,0xbb,0xeb,0x13,0x53,0x4e,0xb3,0xf6,0xe5,0xdc,0xcd,0x85,0xf5,0xc4,0x13,0x3c,0x27,0xd9,0xe6,0x42,0x71,0xb1,0x82,0x6c,0xe1,0xf6,0x7d, + 0x30,0x45,0x02,0x21,0x00,0xfa,0xe9,0x2d,0xfc,0xb2,0xee,0x39,0x2d,0x27,0x0a,0xf3,0xa5,0x73,0x9f,0xaa,0x26,0xd4,0xf9,0x7b,0xfd,0x39,0xed,0x3c,0xbe,0xe4,0xd2,0x9e,0x26,0xaf,0x3b,0x20,0x6a,0x02,0x20,0x6c,0x9b,0xa3,0x7f,0x9f,0xaa,0x6a,0x1f,0xd3,0xf6,0x5f,0x23,0xb4,0xe8,0x53,0xd4,0x69,0x2a,0x72,0x74,0x24,0x0a,0x12,0xdb,0x7b,0xa3,0x88,0x48,0x30,0x63,0x0d,0x16, + 0x30,0x44,0x02,0x20,0x17,0x6a,0x25,0x57,0x56,0x6f,0xfa,0x51,0x8b,0x11,0x22,0x66,0x94,0xeb,0x98,0x02,0xed,0x20,0x98,0xbf,0xe2,0x78,0xe5,0x57,0x0f,0xe1,0xd5,0xd7,0xaf,0x18,0xa9,0x43,0x02,0x20,0x12,0x91,0xdf,0x6a,0x0e,0xd5,0xfc,0x0d,0x15,0x09,0x8e,0x70,0xbc,0xf1,0x3a,0x00,0x92,0x84,0xdf,0xd0,0x68,0x9d,0x3b,0xb4,0xbe,0x6c,0xee,0xb9,0xbe,0x14,0x87,0xc4, + 0x30,0x44,0x02,0x20,0x60,0xbe,0x20,0xc3,0xdb,0xc1,0x62,0xdd,0x34,0xd2,0x67,0x80,0x62,0x1c,0x10,0x4b,0xbe,0x5d,0xac,0xe6,0x30,0x17,0x1b,0x2d,0xae,0xf0,0xd8,0x26,0x40,0x9e,0xe5,0xc2,0x02,0x20,0x42,0x7f,0x7e,0x4d,0x88,0x9d,0x54,0x91,0x70,0xbd,0xa6,0xa9,0x40,0x9f,0xb1,0xcb,0x8b,0x0e,0x76,0x3d,0x13,0xee,0xa7,0xbd,0x97,0xf6,0x4c,0xf4,0x1d,0xc6,0xe4,0x97, + 0x30,0x45,0x02,0x21,0x00,0xed,0xf0,0x3c,0xf6,0x3f,0x65,0x88,0x83,0x28,0x9a,0x1a,0x59,0x3d,0x10,0x07,0x89,0x5b,0x9f,0x23,0x6d,0x27,0xc9,0xc1,0xf1,0x31,0x30,0x89,0xaa,0xed,0x6b,0x16,0xae,0x02,0x20,0x1a,0x4d,0xd6,0xfc,0x08,0x14,0xdc,0x52,0x3d,0x1f,0xef,0xa8,0x1c,0x64,0xfb,0xf5,0xe6,0x18,0xe6,0x51,0xe7,0x09,0x6f,0xcc,0xad,0xbb,0x94,0xcd,0x48,0xe5,0xe0,0xcd}; + +static const wycheproof_ecdsa_testvector testvectors[SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS] = { + /* tcId: 1. Signature malleability */ + {0, 0, 6, 0, 72, 0 }, + /* tcId: 2. valid */ + {0, 0, 6, 72, 71, 1 }, + /* tcId: 3. length of sequence [r, s] uses long form encoding */ + {0, 0, 6, 143, 72, 0 }, + /* tcId: 4. length of sequence [r, s] contains a leading 0 */ + {0, 0, 6, 215, 73, 0 }, + /* tcId: 5. length of sequence [r, s] uses 70 instead of 69 */ + {0, 0, 6, 288, 71, 0 }, + /* tcId: 6. length of sequence [r, s] uses 68 instead of 69 */ + {0, 0, 6, 359, 71, 0 }, + /* tcId: 7. uint32 overflow in length of sequence [r, s] */ + {0, 0, 6, 430, 76, 0 }, + /* tcId: 8. uint64 overflow in length of sequence [r, s] */ + {0, 0, 6, 506, 80, 0 }, + /* tcId: 9. length of sequence [r, s] = 2**31 - 1 */ + {0, 0, 6, 586, 75, 0 }, + /* tcId: 10. length of sequence [r, s] = 2**31 */ + {0, 0, 6, 661, 75, 0 }, + /* tcId: 11. length of sequence [r, s] = 2**32 - 1 */ + {0, 0, 6, 736, 75, 0 }, + /* tcId: 12. length of sequence [r, s] = 2**40 - 1 */ + {0, 0, 6, 811, 76, 0 }, + /* tcId: 13. length of sequence [r, s] = 2**64 - 1 */ + {0, 0, 6, 887, 79, 0 }, + /* tcId: 14. incorrect length of sequence [r, s] */ + {0, 0, 6, 966, 71, 0 }, + /* tcId: 15. replaced sequence [r, s] by an indefinite length tag without termination */ + {0, 0, 6, 1037, 71, 0 }, + /* tcId: 16. removing sequence [r, s] */ + {0, 0, 6, 1108, 0, 0 }, + /* tcId: 17. lonely sequence tag */ + {0, 0, 6, 1108, 1, 0 }, + /* tcId: 18. appending 0's to sequence [r, s] */ + {0, 0, 6, 1109, 73, 0 }, + /* tcId: 19. prepending 0's to sequence [r, s] */ + {0, 0, 6, 1182, 73, 0 }, + /* tcId: 20. appending unused 0's to sequence [r, s] */ + {0, 0, 6, 1255, 73, 0 }, + /* tcId: 21. appending null value to sequence [r, s] */ + {0, 0, 6, 1328, 73, 0 }, + /* tcId: 22. prepending garbage to sequence [r, s] */ + {0, 0, 6, 1401, 76, 0 }, + /* tcId: 23. prepending garbage to sequence [r, s] */ + {0, 0, 6, 1477, 75, 0 }, + /* tcId: 24. appending garbage to sequence [r, s] */ + {0, 0, 6, 1552, 79, 0 }, + /* tcId: 25. including undefined tags */ + {0, 0, 6, 1631, 79, 0 }, + /* tcId: 26. including undefined tags */ + {0, 0, 6, 1710, 79, 0 }, + /* tcId: 27. including undefined tags */ + {0, 0, 6, 1789, 79, 0 }, + /* tcId: 28. truncated length of sequence [r, s] */ + {0, 0, 6, 1868, 2, 0 }, + /* tcId: 29. including undefined tags to sequence [r, s] */ + {0, 0, 6, 1870, 77, 0 }, + /* tcId: 30. using composition with indefinite length for sequence [r, s] */ + {0, 0, 6, 1947, 75, 0 }, + /* tcId: 31. using composition with wrong tag for sequence [r, s] */ + {0, 0, 6, 2022, 75, 0 }, + /* tcId: 32. Replacing sequence [r, s] with NULL */ + {0, 0, 6, 2097, 2, 0 }, + /* tcId: 33. changing tag value of sequence [r, s] */ + {0, 0, 6, 2099, 71, 0 }, + /* tcId: 34. changing tag value of sequence [r, s] */ + {0, 0, 6, 2170, 71, 0 }, + /* tcId: 35. changing tag value of sequence [r, s] */ + {0, 0, 6, 2241, 71, 0 }, + /* tcId: 36. changing tag value of sequence [r, s] */ + {0, 0, 6, 2312, 71, 0 }, + /* tcId: 37. changing tag value of sequence [r, s] */ + {0, 0, 6, 2383, 71, 0 }, + /* tcId: 38. dropping value of sequence [r, s] */ + {0, 0, 6, 2454, 2, 0 }, + /* tcId: 39. using composition for sequence [r, s] */ + {0, 0, 6, 2456, 75, 0 }, + /* tcId: 40. truncated sequence [r, s] */ + {0, 0, 6, 2531, 70, 0 }, + /* tcId: 41. truncated sequence [r, s] */ + {0, 0, 6, 2601, 70, 0 }, + /* tcId: 42. sequence [r, s] of size 4166 to check for overflows */ + {0, 0, 6, 2671, 4170, 0 }, + /* tcId: 43. indefinite length */ + {0, 0, 6, 6841, 73, 0 }, + /* tcId: 44. indefinite length with truncated delimiter */ + {0, 0, 6, 6914, 72, 0 }, + /* tcId: 45. indefinite length with additional element */ + {0, 0, 6, 6986, 75, 0 }, + /* tcId: 46. indefinite length with truncated element */ + {0, 0, 6, 7061, 77, 0 }, + /* tcId: 47. indefinite length with garbage */ + {0, 0, 6, 7138, 77, 0 }, + /* tcId: 48. indefinite length with nonempty EOC */ + {0, 0, 6, 7215, 75, 0 }, + /* tcId: 49. prepend empty sequence */ + {0, 0, 6, 7290, 73, 0 }, + /* tcId: 50. append empty sequence */ + {0, 0, 6, 7363, 73, 0 }, + /* tcId: 51. append zero */ + {0, 0, 6, 7436, 74, 0 }, + /* tcId: 52. append garbage with high tag number */ + {0, 0, 6, 7510, 74, 0 }, + /* tcId: 53. append null with explicit tag */ + {0, 0, 6, 7584, 75, 0 }, + /* tcId: 54. append null with implicit tag */ + {0, 0, 6, 7659, 73, 0 }, + /* tcId: 55. sequence of sequence */ + {0, 0, 6, 7732, 73, 0 }, + /* tcId: 56. truncated sequence: removed last 1 elements */ + {0, 0, 6, 7805, 37, 0 }, + /* tcId: 57. repeating element in sequence */ + {0, 0, 6, 7842, 105, 0 }, + /* tcId: 58. flipped bit 0 in r */ + {0, 0, 6, 7947, 69, 0 }, + /* tcId: 59. flipped bit 32 in r */ + {0, 0, 6, 8016, 69, 0 }, + /* tcId: 60. flipped bit 48 in r */ + {0, 0, 6, 8085, 69, 0 }, + /* tcId: 61. flipped bit 64 in r */ + {0, 0, 6, 8154, 69, 0 }, + /* tcId: 62. length of r uses long form encoding */ + {0, 0, 6, 8223, 72, 0 }, + /* tcId: 63. length of r contains a leading 0 */ + {0, 0, 6, 8295, 73, 0 }, + /* tcId: 64. length of r uses 34 instead of 33 */ + {0, 0, 6, 8368, 71, 0 }, + /* tcId: 65. length of r uses 32 instead of 33 */ + {0, 0, 6, 8439, 71, 0 }, + /* tcId: 66. uint32 overflow in length of r */ + {0, 0, 6, 8510, 76, 0 }, + /* tcId: 67. uint64 overflow in length of r */ + {0, 0, 6, 8586, 80, 0 }, + /* tcId: 68. length of r = 2**31 - 1 */ + {0, 0, 6, 8666, 75, 0 }, + /* tcId: 69. length of r = 2**31 */ + {0, 0, 6, 8741, 75, 0 }, + /* tcId: 70. length of r = 2**32 - 1 */ + {0, 0, 6, 8816, 75, 0 }, + /* tcId: 71. length of r = 2**40 - 1 */ + {0, 0, 6, 8891, 76, 0 }, + /* tcId: 72. length of r = 2**64 - 1 */ + {0, 0, 6, 8967, 79, 0 }, + /* tcId: 73. incorrect length of r */ + {0, 0, 6, 9046, 71, 0 }, + /* tcId: 74. replaced r by an indefinite length tag without termination */ + {0, 0, 6, 9117, 71, 0 }, + /* tcId: 75. removing r */ + {0, 0, 6, 9188, 36, 0 }, + /* tcId: 76. lonely integer tag */ + {0, 0, 6, 9224, 37, 0 }, + /* tcId: 77. lonely integer tag */ + {0, 0, 6, 9261, 38, 0 }, + /* tcId: 78. appending 0's to r */ + {0, 0, 6, 9299, 73, 0 }, + /* tcId: 79. prepending 0's to r */ + {0, 0, 6, 9372, 73, 0 }, + /* tcId: 80. appending unused 0's to r */ + {0, 0, 6, 9445, 73, 0 }, + /* tcId: 81. appending null value to r */ + {0, 0, 6, 9518, 73, 0 }, + /* tcId: 82. prepending garbage to r */ + {0, 0, 6, 9591, 76, 0 }, + /* tcId: 83. prepending garbage to r */ + {0, 0, 6, 9667, 75, 0 }, + /* tcId: 84. appending garbage to r */ + {0, 0, 6, 9742, 79, 0 }, + /* tcId: 85. truncated length of r */ + {0, 0, 6, 9821, 38, 0 }, + /* tcId: 86. including undefined tags to r */ + {0, 0, 6, 9859, 77, 0 }, + /* tcId: 87. using composition with indefinite length for r */ + {0, 0, 6, 9936, 75, 0 }, + /* tcId: 88. using composition with wrong tag for r */ + {0, 0, 6, 10011, 75, 0 }, + /* tcId: 89. Replacing r with NULL */ + {0, 0, 6, 10086, 38, 0 }, + /* tcId: 90. changing tag value of r */ + {0, 0, 6, 10124, 71, 0 }, + /* tcId: 91. changing tag value of r */ + {0, 0, 6, 10195, 71, 0 }, + /* tcId: 92. changing tag value of r */ + {0, 0, 6, 10266, 71, 0 }, + /* tcId: 93. changing tag value of r */ + {0, 0, 6, 10337, 71, 0 }, + /* tcId: 94. changing tag value of r */ + {0, 0, 6, 10408, 71, 0 }, + /* tcId: 95. dropping value of r */ + {0, 0, 6, 10479, 38, 0 }, + /* tcId: 96. using composition for r */ + {0, 0, 6, 10517, 75, 0 }, + /* tcId: 97. modifying first byte of r */ + {0, 0, 6, 10592, 71, 0 }, + /* tcId: 98. modifying last byte of r */ + {0, 0, 6, 10663, 71, 0 }, + /* tcId: 99. truncated r */ + {0, 0, 6, 10734, 70, 0 }, + /* tcId: 100. truncated r */ + {0, 0, 6, 10804, 70, 0 }, + /* tcId: 101. r of size 4130 to check for overflows */ + {0, 0, 6, 10874, 4172, 0 }, + /* tcId: 102. leading ff in r */ + {0, 0, 6, 15046, 72, 0 }, + /* tcId: 103. replaced r by infinity */ + {0, 0, 6, 15118, 39, 0 }, + /* tcId: 104. replacing r with zero */ + {0, 0, 6, 15157, 39, 0 }, + /* tcId: 105. flipped bit 0 in s */ + {0, 0, 6, 15196, 69, 0 }, + /* tcId: 106. flipped bit 32 in s */ + {0, 0, 6, 15265, 69, 0 }, + /* tcId: 107. flipped bit 48 in s */ + {0, 0, 6, 15334, 69, 0 }, + /* tcId: 108. flipped bit 64 in s */ + {0, 0, 6, 15403, 69, 0 }, + /* tcId: 109. length of s uses long form encoding */ + {0, 0, 6, 15472, 72, 0 }, + /* tcId: 110. length of s contains a leading 0 */ + {0, 0, 6, 15544, 73, 0 }, + /* tcId: 111. length of s uses 33 instead of 32 */ + {0, 0, 6, 15617, 71, 0 }, + /* tcId: 112. length of s uses 31 instead of 32 */ + {0, 0, 6, 15688, 71, 0 }, + /* tcId: 113. uint32 overflow in length of s */ + {0, 0, 6, 15759, 76, 0 }, + /* tcId: 114. uint64 overflow in length of s */ + {0, 0, 6, 15835, 80, 0 }, + /* tcId: 115. length of s = 2**31 - 1 */ + {0, 0, 6, 15915, 75, 0 }, + /* tcId: 116. length of s = 2**31 */ + {0, 0, 6, 15990, 75, 0 }, + /* tcId: 117. length of s = 2**32 - 1 */ + {0, 0, 6, 16065, 75, 0 }, + /* tcId: 118. length of s = 2**40 - 1 */ + {0, 0, 6, 16140, 76, 0 }, + /* tcId: 119. length of s = 2**64 - 1 */ + {0, 0, 6, 16216, 79, 0 }, + /* tcId: 120. incorrect length of s */ + {0, 0, 6, 16295, 71, 0 }, + /* tcId: 121. replaced s by an indefinite length tag without termination */ + {0, 0, 6, 16366, 71, 0 }, + /* tcId: 122. appending 0's to s */ + {0, 0, 6, 16437, 73, 0 }, + /* tcId: 123. prepending 0's to s */ + {0, 0, 6, 16510, 73, 0 }, + /* tcId: 124. appending null value to s */ + {0, 0, 6, 16583, 73, 0 }, + /* tcId: 125. prepending garbage to s */ + {0, 0, 6, 16656, 76, 0 }, + /* tcId: 126. prepending garbage to s */ + {0, 0, 6, 16732, 75, 0 }, + /* tcId: 127. appending garbage to s */ + {0, 0, 6, 16807, 79, 0 }, + /* tcId: 128. truncated length of s */ + {0, 0, 6, 16886, 39, 0 }, + /* tcId: 129. including undefined tags to s */ + {0, 0, 6, 16925, 77, 0 }, + /* tcId: 130. using composition with indefinite length for s */ + {0, 0, 6, 17002, 75, 0 }, + /* tcId: 131. using composition with wrong tag for s */ + {0, 0, 6, 17077, 75, 0 }, + /* tcId: 132. Replacing s with NULL */ + {0, 0, 6, 17152, 39, 0 }, + /* tcId: 133. changing tag value of s */ + {0, 0, 6, 17191, 71, 0 }, + /* tcId: 134. changing tag value of s */ + {0, 0, 6, 17262, 71, 0 }, + /* tcId: 135. changing tag value of s */ + {0, 0, 6, 17333, 71, 0 }, + /* tcId: 136. changing tag value of s */ + {0, 0, 6, 17404, 71, 0 }, + /* tcId: 137. changing tag value of s */ + {0, 0, 6, 17475, 71, 0 }, + /* tcId: 138. dropping value of s */ + {0, 0, 6, 17546, 39, 0 }, + /* tcId: 139. using composition for s */ + {0, 0, 6, 17585, 75, 0 }, + /* tcId: 140. modifying first byte of s */ + {0, 0, 6, 17660, 71, 0 }, + /* tcId: 141. modifying last byte of s */ + {0, 0, 6, 17731, 71, 0 }, + /* tcId: 142. truncated s */ + {0, 0, 6, 17802, 70, 0 }, + /* tcId: 143. truncated s */ + {0, 0, 6, 17872, 70, 0 }, + /* tcId: 144. s of size 4129 to check for overflows */ + {0, 0, 6, 17942, 4172, 0 }, + /* tcId: 145. leading ff in s */ + {0, 0, 6, 22114, 72, 0 }, + /* tcId: 146. replaced s by infinity */ + {0, 0, 6, 22186, 40, 0 }, + /* tcId: 147. replacing s with zero */ + {0, 0, 6, 22226, 40, 0 }, + /* tcId: 148. replaced r by r + n */ + {0, 0, 6, 22266, 71, 0 }, + /* tcId: 149. replaced r by r - n */ + {0, 0, 6, 22337, 70, 0 }, + /* tcId: 150. replaced r by r + 256 * n */ + {0, 0, 6, 22407, 72, 0 }, + /* tcId: 151. replaced r by -r */ + {0, 0, 6, 22479, 71, 0 }, + /* tcId: 152. replaced r by n - r */ + {0, 0, 6, 22550, 70, 0 }, + /* tcId: 153. replaced r by -n - r */ + {0, 0, 6, 22620, 71, 0 }, + /* tcId: 154. replaced r by r + 2**256 */ + {0, 0, 6, 22691, 71, 0 }, + /* tcId: 155. replaced r by r + 2**320 */ + {0, 0, 6, 22762, 79, 0 }, + /* tcId: 156. replaced s by s + n */ + {0, 0, 6, 22841, 71, 0 }, + /* tcId: 157. replaced s by s - n */ + {0, 0, 6, 22912, 71, 0 }, + /* tcId: 158. replaced s by s + 256 * n */ + {0, 0, 6, 22983, 72, 0 }, + /* tcId: 159. replaced s by -s */ + {0, 0, 6, 23055, 70, 0 }, + /* tcId: 160. replaced s by -n - s */ + {0, 0, 6, 23125, 71, 0 }, + /* tcId: 161. replaced s by s + 2**256 */ + {0, 0, 6, 23196, 71, 0 }, + /* tcId: 162. replaced s by s - 2**256 */ + {0, 0, 6, 23267, 71, 0 }, + /* tcId: 163. replaced s by s + 2**320 */ + {0, 0, 6, 23338, 79, 0 }, + /* tcId: 164. Signature with special case values r=0 and s=0 */ + {0, 0, 6, 23417, 8, 0 }, + /* tcId: 165. Signature with special case values r=0 and s=1 */ + {0, 0, 6, 23425, 8, 0 }, + /* tcId: 166. Signature with special case values r=0 and s=-1 */ + {0, 0, 6, 23433, 8, 0 }, + /* tcId: 167. Signature with special case values r=0 and s=n */ + {0, 0, 6, 23441, 40, 0 }, + /* tcId: 168. Signature with special case values r=0 and s=n - 1 */ + {0, 0, 6, 23481, 40, 0 }, + /* tcId: 169. Signature with special case values r=0 and s=n + 1 */ + {0, 0, 6, 23521, 40, 0 }, + /* tcId: 170. Signature with special case values r=0 and s=p */ + {0, 0, 6, 23561, 40, 0 }, + /* tcId: 171. Signature with special case values r=0 and s=p + 1 */ + {0, 0, 6, 23601, 40, 0 }, + /* tcId: 172. Signature with special case values r=1 and s=0 */ + {0, 0, 6, 23641, 8, 0 }, + /* tcId: 173. Signature with special case values r=1 and s=1 */ + {0, 0, 6, 23649, 8, 0 }, + /* tcId: 174. Signature with special case values r=1 and s=-1 */ + {0, 0, 6, 23657, 8, 0 }, + /* tcId: 175. Signature with special case values r=1 and s=n */ + {0, 0, 6, 23665, 40, 0 }, + /* tcId: 176. Signature with special case values r=1 and s=n - 1 */ + {0, 0, 6, 23705, 40, 0 }, + /* tcId: 177. Signature with special case values r=1 and s=n + 1 */ + {0, 0, 6, 23745, 40, 0 }, + /* tcId: 178. Signature with special case values r=1 and s=p */ + {0, 0, 6, 23785, 40, 0 }, + /* tcId: 179. Signature with special case values r=1 and s=p + 1 */ + {0, 0, 6, 23825, 40, 0 }, + /* tcId: 180. Signature with special case values r=-1 and s=0 */ + {0, 0, 6, 23865, 8, 0 }, + /* tcId: 181. Signature with special case values r=-1 and s=1 */ + {0, 0, 6, 23873, 8, 0 }, + /* tcId: 182. Signature with special case values r=-1 and s=-1 */ + {0, 0, 6, 23881, 8, 0 }, + /* tcId: 183. Signature with special case values r=-1 and s=n */ + {0, 0, 6, 23889, 40, 0 }, + /* tcId: 184. Signature with special case values r=-1 and s=n - 1 */ + {0, 0, 6, 23929, 40, 0 }, + /* tcId: 185. Signature with special case values r=-1 and s=n + 1 */ + {0, 0, 6, 23969, 40, 0 }, + /* tcId: 186. Signature with special case values r=-1 and s=p */ + {0, 0, 6, 24009, 40, 0 }, + /* tcId: 187. Signature with special case values r=-1 and s=p + 1 */ + {0, 0, 6, 24049, 40, 0 }, + /* tcId: 188. Signature with special case values r=n and s=0 */ + {0, 0, 6, 24089, 40, 0 }, + /* tcId: 189. Signature with special case values r=n and s=1 */ + {0, 0, 6, 24129, 40, 0 }, + /* tcId: 190. Signature with special case values r=n and s=-1 */ + {0, 0, 6, 24169, 40, 0 }, + /* tcId: 191. Signature with special case values r=n and s=n */ + {0, 0, 6, 24209, 72, 0 }, + /* tcId: 192. Signature with special case values r=n and s=n - 1 */ + {0, 0, 6, 24281, 72, 0 }, + /* tcId: 193. Signature with special case values r=n and s=n + 1 */ + {0, 0, 6, 24353, 72, 0 }, + /* tcId: 194. Signature with special case values r=n and s=p */ + {0, 0, 6, 24425, 72, 0 }, + /* tcId: 195. Signature with special case values r=n and s=p + 1 */ + {0, 0, 6, 24497, 72, 0 }, + /* tcId: 196. Signature with special case values r=n - 1 and s=0 */ + {0, 0, 6, 24569, 40, 0 }, + /* tcId: 197. Signature with special case values r=n - 1 and s=1 */ + {0, 0, 6, 24609, 40, 0 }, + /* tcId: 198. Signature with special case values r=n - 1 and s=-1 */ + {0, 0, 6, 24649, 40, 0 }, + /* tcId: 199. Signature with special case values r=n - 1 and s=n */ + {0, 0, 6, 24689, 72, 0 }, + /* tcId: 200. Signature with special case values r=n - 1 and s=n - 1 */ + {0, 0, 6, 24761, 72, 0 }, + /* tcId: 201. Signature with special case values r=n - 1 and s=n + 1 */ + {0, 0, 6, 24833, 72, 0 }, + /* tcId: 202. Signature with special case values r=n - 1 and s=p */ + {0, 0, 6, 24905, 72, 0 }, + /* tcId: 203. Signature with special case values r=n - 1 and s=p + 1 */ + {0, 0, 6, 24977, 72, 0 }, + /* tcId: 204. Signature with special case values r=n + 1 and s=0 */ + {0, 0, 6, 25049, 40, 0 }, + /* tcId: 205. Signature with special case values r=n + 1 and s=1 */ + {0, 0, 6, 25089, 40, 0 }, + /* tcId: 206. Signature with special case values r=n + 1 and s=-1 */ + {0, 0, 6, 25129, 40, 0 }, + /* tcId: 207. Signature with special case values r=n + 1 and s=n */ + {0, 0, 6, 25169, 72, 0 }, + /* tcId: 208. Signature with special case values r=n + 1 and s=n - 1 */ + {0, 0, 6, 25241, 72, 0 }, + /* tcId: 209. Signature with special case values r=n + 1 and s=n + 1 */ + {0, 0, 6, 25313, 72, 0 }, + /* tcId: 210. Signature with special case values r=n + 1 and s=p */ + {0, 0, 6, 25385, 72, 0 }, + /* tcId: 211. Signature with special case values r=n + 1 and s=p + 1 */ + {0, 0, 6, 25457, 72, 0 }, + /* tcId: 212. Signature with special case values r=p and s=0 */ + {0, 0, 6, 25529, 40, 0 }, + /* tcId: 213. Signature with special case values r=p and s=1 */ + {0, 0, 6, 25569, 40, 0 }, + /* tcId: 214. Signature with special case values r=p and s=-1 */ + {0, 0, 6, 25609, 40, 0 }, + /* tcId: 215. Signature with special case values r=p and s=n */ + {0, 0, 6, 25649, 72, 0 }, + /* tcId: 216. Signature with special case values r=p and s=n - 1 */ + {0, 0, 6, 25721, 72, 0 }, + /* tcId: 217. Signature with special case values r=p and s=n + 1 */ + {0, 0, 6, 25793, 72, 0 }, + /* tcId: 218. Signature with special case values r=p and s=p */ + {0, 0, 6, 25865, 72, 0 }, + /* tcId: 219. Signature with special case values r=p and s=p + 1 */ + {0, 0, 6, 25937, 72, 0 }, + /* tcId: 220. Signature with special case values r=p + 1 and s=0 */ + {0, 0, 6, 26009, 40, 0 }, + /* tcId: 221. Signature with special case values r=p + 1 and s=1 */ + {0, 0, 6, 26049, 40, 0 }, + /* tcId: 222. Signature with special case values r=p + 1 and s=-1 */ + {0, 0, 6, 26089, 40, 0 }, + /* tcId: 223. Signature with special case values r=p + 1 and s=n */ + {0, 0, 6, 26129, 72, 0 }, + /* tcId: 224. Signature with special case values r=p + 1 and s=n - 1 */ + {0, 0, 6, 26201, 72, 0 }, + /* tcId: 225. Signature with special case values r=p + 1 and s=n + 1 */ + {0, 0, 6, 26273, 72, 0 }, + /* tcId: 226. Signature with special case values r=p + 1 and s=p */ + {0, 0, 6, 26345, 72, 0 }, + /* tcId: 227. Signature with special case values r=p + 1 and s=p + 1 */ + {0, 0, 6, 26417, 72, 0 }, + /* tcId: 228. Signature encoding contains incorrect types: r=0, s=0.25 */ + {0, 0, 6, 26489, 10, 0 }, + /* tcId: 229. Signature encoding contains incorrect types: r=0, s=nan */ + {0, 0, 6, 26499, 8, 0 }, + /* tcId: 230. Signature encoding contains incorrect types: r=0, s=True */ + {0, 0, 6, 26507, 8, 0 }, + /* tcId: 231. Signature encoding contains incorrect types: r=0, s=False */ + {0, 0, 6, 26515, 8, 0 }, + /* tcId: 232. Signature encoding contains incorrect types: r=0, s=Null */ + {0, 0, 6, 26523, 7, 0 }, + /* tcId: 233. Signature encoding contains incorrect types: r=0, s=empyt UTF-8 string */ + {0, 0, 6, 26530, 7, 0 }, + /* tcId: 234. Signature encoding contains incorrect types: r=0, s="0" */ + {0, 0, 6, 26537, 8, 0 }, + /* tcId: 235. Signature encoding contains incorrect types: r=0, s=empty list */ + {0, 0, 6, 26545, 7, 0 }, + /* tcId: 236. Signature encoding contains incorrect types: r=0, s=list containing 0 */ + {0, 0, 6, 26552, 10, 0 }, + /* tcId: 237. Signature encoding contains incorrect types: r=1, s=0.25 */ + {0, 0, 6, 26562, 10, 0 }, + /* tcId: 238. Signature encoding contains incorrect types: r=1, s=nan */ + {0, 0, 6, 26572, 8, 0 }, + /* tcId: 239. Signature encoding contains incorrect types: r=1, s=True */ + {0, 0, 6, 26580, 8, 0 }, + /* tcId: 240. Signature encoding contains incorrect types: r=1, s=False */ + {0, 0, 6, 26588, 8, 0 }, + /* tcId: 241. Signature encoding contains incorrect types: r=1, s=Null */ + {0, 0, 6, 26596, 7, 0 }, + /* tcId: 242. Signature encoding contains incorrect types: r=1, s=empyt UTF-8 string */ + {0, 0, 6, 26603, 7, 0 }, + /* tcId: 243. Signature encoding contains incorrect types: r=1, s="0" */ + {0, 0, 6, 26610, 8, 0 }, + /* tcId: 244. Signature encoding contains incorrect types: r=1, s=empty list */ + {0, 0, 6, 26618, 7, 0 }, + /* tcId: 245. Signature encoding contains incorrect types: r=1, s=list containing 0 */ + {0, 0, 6, 26625, 10, 0 }, + /* tcId: 246. Signature encoding contains incorrect types: r=-1, s=0.25 */ + {0, 0, 6, 26635, 10, 0 }, + /* tcId: 247. Signature encoding contains incorrect types: r=-1, s=nan */ + {0, 0, 6, 26645, 8, 0 }, + /* tcId: 248. Signature encoding contains incorrect types: r=-1, s=True */ + {0, 0, 6, 26653, 8, 0 }, + /* tcId: 249. Signature encoding contains incorrect types: r=-1, s=False */ + {0, 0, 6, 26661, 8, 0 }, + /* tcId: 250. Signature encoding contains incorrect types: r=-1, s=Null */ + {0, 0, 6, 26669, 7, 0 }, + /* tcId: 251. Signature encoding contains incorrect types: r=-1, s=empyt UTF-8 string */ + {0, 0, 6, 26676, 7, 0 }, + /* tcId: 252. Signature encoding contains incorrect types: r=-1, s="0" */ + {0, 0, 6, 26683, 8, 0 }, + /* tcId: 253. Signature encoding contains incorrect types: r=-1, s=empty list */ + {0, 0, 6, 26691, 7, 0 }, + /* tcId: 254. Signature encoding contains incorrect types: r=-1, s=list containing 0 */ + {0, 0, 6, 26698, 10, 0 }, + /* tcId: 255. Signature encoding contains incorrect types: r=n, s=0.25 */ + {0, 0, 6, 26708, 42, 0 }, + /* tcId: 256. Signature encoding contains incorrect types: r=n, s=nan */ + {0, 0, 6, 26750, 40, 0 }, + /* tcId: 257. Signature encoding contains incorrect types: r=n, s=True */ + {0, 0, 6, 26790, 40, 0 }, + /* tcId: 258. Signature encoding contains incorrect types: r=n, s=False */ + {0, 0, 6, 26830, 40, 0 }, + /* tcId: 259. Signature encoding contains incorrect types: r=n, s=Null */ + {0, 0, 6, 26870, 39, 0 }, + /* tcId: 260. Signature encoding contains incorrect types: r=n, s=empyt UTF-8 string */ + {0, 0, 6, 26909, 39, 0 }, + /* tcId: 261. Signature encoding contains incorrect types: r=n, s="0" */ + {0, 0, 6, 26948, 40, 0 }, + /* tcId: 262. Signature encoding contains incorrect types: r=n, s=empty list */ + {0, 0, 6, 26988, 39, 0 }, + /* tcId: 263. Signature encoding contains incorrect types: r=n, s=list containing 0 */ + {0, 0, 6, 27027, 42, 0 }, + /* tcId: 264. Signature encoding contains incorrect types: r=p, s=0.25 */ + {0, 0, 6, 27069, 42, 0 }, + /* tcId: 265. Signature encoding contains incorrect types: r=p, s=nan */ + {0, 0, 6, 27111, 40, 0 }, + /* tcId: 266. Signature encoding contains incorrect types: r=p, s=True */ + {0, 0, 6, 27151, 40, 0 }, + /* tcId: 267. Signature encoding contains incorrect types: r=p, s=False */ + {0, 0, 6, 27191, 40, 0 }, + /* tcId: 268. Signature encoding contains incorrect types: r=p, s=Null */ + {0, 0, 6, 27231, 39, 0 }, + /* tcId: 269. Signature encoding contains incorrect types: r=p, s=empyt UTF-8 string */ + {0, 0, 6, 27270, 39, 0 }, + /* tcId: 270. Signature encoding contains incorrect types: r=p, s="0" */ + {0, 0, 6, 27309, 40, 0 }, + /* tcId: 271. Signature encoding contains incorrect types: r=p, s=empty list */ + {0, 0, 6, 27349, 39, 0 }, + /* tcId: 272. Signature encoding contains incorrect types: r=p, s=list containing 0 */ + {0, 0, 6, 27388, 42, 0 }, + /* tcId: 273. Signature encoding contains incorrect types: r=0.25, s=0.25 */ + {0, 0, 6, 27430, 12, 0 }, + /* tcId: 274. Signature encoding contains incorrect types: r=nan, s=nan */ + {0, 0, 6, 27442, 8, 0 }, + /* tcId: 275. Signature encoding contains incorrect types: r=True, s=True */ + {0, 0, 6, 27450, 8, 0 }, + /* tcId: 276. Signature encoding contains incorrect types: r=False, s=False */ + {0, 0, 6, 27458, 8, 0 }, + /* tcId: 277. Signature encoding contains incorrect types: r=Null, s=Null */ + {0, 0, 6, 27466, 6, 0 }, + /* tcId: 278. Signature encoding contains incorrect types: r=empyt UTF-8 string, s=empyt UTF-8 string */ + {0, 0, 6, 27472, 6, 0 }, + /* tcId: 279. Signature encoding contains incorrect types: r="0", s="0" */ + {0, 0, 6, 27478, 8, 0 }, + /* tcId: 280. Signature encoding contains incorrect types: r=empty list, s=empty list */ + {0, 0, 6, 27486, 6, 0 }, + /* tcId: 281. Signature encoding contains incorrect types: r=list containing 0, s=list containing 0 */ + {0, 0, 6, 27492, 12, 0 }, + /* tcId: 282. Signature encoding contains incorrect types: r=0.25, s=0 */ + {0, 0, 6, 27504, 10, 0 }, + /* tcId: 283. Signature encoding contains incorrect types: r=nan, s=0 */ + {0, 0, 6, 27514, 8, 0 }, + /* tcId: 284. Signature encoding contains incorrect types: r=True, s=0 */ + {0, 0, 6, 27522, 8, 0 }, + /* tcId: 285. Signature encoding contains incorrect types: r=False, s=0 */ + {0, 0, 6, 27530, 8, 0 }, + /* tcId: 286. Signature encoding contains incorrect types: r=Null, s=0 */ + {0, 0, 6, 27538, 7, 0 }, + /* tcId: 287. Signature encoding contains incorrect types: r=empyt UTF-8 string, s=0 */ + {0, 0, 6, 27545, 7, 0 }, + /* tcId: 288. Signature encoding contains incorrect types: r="0", s=0 */ + {0, 0, 6, 27552, 8, 0 }, + /* tcId: 289. Signature encoding contains incorrect types: r=empty list, s=0 */ + {0, 0, 6, 27560, 7, 0 }, + /* tcId: 290. Signature encoding contains incorrect types: r=list containing 0, s=0 */ + {0, 0, 6, 27567, 10, 0 }, + /* tcId: 291. Edge case for Shamir multiplication */ + {0, 6, 5, 27577, 71, 1 }, + /* tcId: 292. special case hash */ + {0, 11, 9, 27648, 71, 1 }, + /* tcId: 293. special case hash */ + {0, 20, 10, 27719, 70, 1 }, + /* tcId: 294. special case hash */ + {0, 30, 11, 27789, 71, 1 }, + /* tcId: 295. special case hash */ + {0, 41, 10, 27860, 71, 1 }, + /* tcId: 296. special case hash */ + {0, 51, 10, 27931, 70, 1 }, + /* tcId: 297. special case hash */ + {0, 61, 10, 28001, 71, 1 }, + /* tcId: 298. special case hash */ + {0, 71, 9, 28072, 70, 1 }, + /* tcId: 299. special case hash */ + {0, 80, 10, 28142, 71, 1 }, + /* tcId: 300. special case hash */ + {0, 90, 10, 28213, 71, 1 }, + /* tcId: 301. special case hash */ + {0, 100, 10, 28284, 71, 1 }, + /* tcId: 302. special case hash */ + {0, 110, 10, 28355, 71, 1 }, + /* tcId: 303. special case hash */ + {0, 120, 11, 28426, 70, 1 }, + /* tcId: 304. special case hash */ + {0, 131, 10, 28496, 71, 1 }, + /* tcId: 305. special case hash */ + {0, 141, 10, 28567, 71, 1 }, + /* tcId: 306. special case hash */ + {0, 151, 10, 28638, 70, 1 }, + /* tcId: 307. special case hash */ + {0, 161, 10, 28708, 71, 1 }, + /* tcId: 308. special case hash */ + {0, 171, 10, 28779, 71, 1 }, + /* tcId: 309. special case hash */ + {0, 181, 10, 28850, 70, 1 }, + /* tcId: 310. special case hash */ + {0, 191, 10, 28920, 71, 1 }, + /* tcId: 311. special case hash */ + {0, 201, 10, 28991, 71, 1 }, + /* tcId: 312. special case hash */ + {0, 211, 10, 29062, 71, 1 }, + /* tcId: 313. special case hash */ + {0, 221, 10, 29133, 70, 1 }, + /* tcId: 314. special case hash */ + {0, 231, 10, 29203, 71, 1 }, + /* tcId: 315. special case hash */ + {0, 241, 10, 29274, 71, 1 }, + /* tcId: 316. special case hash */ + {0, 251, 10, 29345, 71, 1 }, + /* tcId: 317. special case hash */ + {0, 261, 11, 29416, 71, 1 }, + /* tcId: 318. special case hash */ + {0, 272, 11, 29487, 70, 1 }, + /* tcId: 319. special case hash */ + {0, 283, 9, 29557, 71, 1 }, + /* tcId: 320. special case hash */ + {0, 292, 9, 29628, 71, 1 }, + /* tcId: 321. special case hash */ + {0, 301, 10, 29699, 71, 1 }, + /* tcId: 322. special case hash */ + {0, 311, 10, 29770, 71, 1 }, + /* tcId: 323. special case hash */ + {0, 321, 10, 29841, 70, 1 }, + /* tcId: 324. special case hash */ + {0, 331, 10, 29911, 70, 1 }, + /* tcId: 325. special case hash */ + {0, 341, 10, 29981, 71, 1 }, + /* tcId: 326. special case hash */ + {0, 351, 9, 30052, 70, 1 }, + /* tcId: 327. special case hash */ + {0, 360, 10, 30122, 70, 1 }, + /* tcId: 328. special case hash */ + {0, 370, 10, 30192, 70, 1 }, + /* tcId: 329. special case hash */ + {0, 380, 10, 30262, 70, 1 }, + /* tcId: 330. special case hash */ + {0, 390, 9, 30332, 71, 1 }, + /* tcId: 331. special case hash */ + {0, 399, 11, 30403, 70, 1 }, + /* tcId: 332. special case hash */ + {0, 410, 9, 30473, 71, 1 }, + /* tcId: 333. special case hash */ + {0, 419, 9, 30544, 71, 1 }, + /* tcId: 334. special case hash */ + {0, 428, 11, 30615, 70, 1 }, + /* tcId: 335. special case hash */ + {0, 439, 8, 30685, 71, 1 }, + /* tcId: 336. special case hash */ + {0, 447, 10, 30756, 70, 1 }, + /* tcId: 337. special case hash */ + {0, 457, 10, 30826, 71, 1 }, + /* tcId: 338. special case hash */ + {0, 467, 10, 30897, 70, 1 }, + /* tcId: 339. special case hash */ + {0, 477, 10, 30967, 70, 1 }, + /* tcId: 340. special case hash */ + {0, 487, 10, 31037, 70, 1 }, + /* tcId: 341. special case hash */ + {0, 497, 10, 31107, 71, 1 }, + /* tcId: 342. special case hash */ + {0, 507, 10, 31178, 70, 1 }, + /* tcId: 343. special case hash */ + {0, 517, 10, 31248, 70, 1 }, + /* tcId: 344. special case hash */ + {0, 527, 10, 31318, 71, 1 }, + /* tcId: 345. special case hash */ + {0, 537, 9, 31389, 70, 1 }, + /* tcId: 346. k*G has a large x-coordinate */ + {65, 0, 6, 31459, 24, 1 }, + /* tcId: 347. r too large */ + {65, 0, 6, 31483, 40, 0 }, + /* tcId: 348. r,s are large */ + {130, 0, 6, 31523, 40, 1 }, + /* tcId: 349. r and s^-1 have a large Hamming weight */ + {195, 0, 6, 31563, 70, 1 }, + /* tcId: 350. r and s^-1 have a large Hamming weight */ + {260, 0, 6, 31633, 70, 1 }, + /* tcId: 351. small r and s */ + {325, 0, 6, 31703, 8, 1 }, + /* tcId: 352. small r and s */ + {390, 0, 6, 31711, 8, 1 }, + /* tcId: 353. small r and s */ + {455, 0, 6, 31719, 8, 1 }, + /* tcId: 354. small r and s */ + {520, 0, 6, 31727, 8, 1 }, + /* tcId: 355. small r and s */ + {585, 0, 6, 31735, 8, 1 }, + /* tcId: 356. small r and s */ + {650, 0, 6, 31743, 8, 1 }, + /* tcId: 357. r is larger than n */ + {650, 0, 6, 31751, 40, 0 }, + /* tcId: 358. s is larger than n */ + {715, 0, 6, 31791, 10, 0 }, + /* tcId: 359. small r and s^-1 */ + {780, 0, 6, 31801, 40, 1 }, + /* tcId: 360. smallish r and s^-1 */ + {845, 0, 6, 31841, 45, 1 }, + /* tcId: 361. 100-bit r and small s^-1 */ + {910, 0, 6, 31886, 51, 1 }, + /* tcId: 362. small r and 100 bit s^-1 */ + {975, 0, 6, 31937, 40, 1 }, + /* tcId: 363. 100-bit r and s^-1 */ + {1040, 0, 6, 31977, 51, 1 }, + /* tcId: 364. r and s^-1 are close to n */ + {1105, 0, 6, 32028, 71, 1 }, + /* tcId: 365. r and s are 64-bit integer */ + {1170, 0, 6, 32099, 24, 1 }, + /* tcId: 366. r and s are 100-bit integer */ + {1235, 0, 6, 32123, 32, 1 }, + /* tcId: 367. r and s are 128-bit integer */ + {1300, 0, 6, 32155, 40, 1 }, + /* tcId: 368. r and s are 160-bit integer */ + {1365, 0, 6, 32195, 48, 1 }, + /* tcId: 369. s == 1 */ + {1430, 0, 6, 32243, 39, 1 }, + /* tcId: 370. s == 0 */ + {1430, 0, 6, 32282, 39, 0 }, + /* tcId: 371. edge case modular inverse */ + {1495, 0, 6, 32321, 70, 1 }, + /* tcId: 372. edge case modular inverse */ + {1560, 0, 6, 32391, 70, 1 }, + /* tcId: 373. edge case modular inverse */ + {1625, 0, 6, 32461, 70, 1 }, + /* tcId: 374. edge case modular inverse */ + {1690, 0, 6, 32531, 70, 1 }, + /* tcId: 375. edge case modular inverse */ + {1755, 0, 6, 32601, 70, 1 }, + /* tcId: 376. edge case modular inverse */ + {1820, 0, 6, 32671, 70, 1 }, + /* tcId: 377. edge case modular inverse */ + {1885, 0, 6, 32741, 70, 1 }, + /* tcId: 378. edge case modular inverse */ + {1950, 0, 6, 32811, 70, 1 }, + /* tcId: 379. edge case modular inverse */ + {2015, 0, 6, 32881, 70, 1 }, + /* tcId: 380. edge case modular inverse */ + {2080, 0, 6, 32951, 70, 1 }, + /* tcId: 381. edge case modular inverse */ + {2145, 0, 6, 33021, 70, 1 }, + /* tcId: 382. edge case modular inverse */ + {2210, 0, 6, 33091, 70, 1 }, + /* tcId: 383. edge case modular inverse */ + {2275, 0, 6, 33161, 70, 1 }, + /* tcId: 384. edge case modular inverse */ + {2340, 0, 6, 33231, 70, 1 }, + /* tcId: 385. edge case modular inverse */ + {2405, 0, 6, 33301, 70, 1 }, + /* tcId: 386. point at infinity during verify */ + {2470, 0, 6, 33371, 70, 0 }, + /* tcId: 387. edge case for signature malleability */ + {2535, 0, 6, 33441, 70, 1 }, + /* tcId: 388. edge case for signature malleability */ + {2600, 0, 6, 33511, 70, 0 }, + /* tcId: 389. u1 == 1 */ + {2665, 0, 6, 33581, 70, 1 }, + /* tcId: 390. u1 == n - 1 */ + {2730, 0, 6, 33651, 70, 1 }, + /* tcId: 391. u2 == 1 */ + {2795, 0, 6, 33721, 70, 1 }, + /* tcId: 392. u2 == n - 1 */ + {2860, 0, 6, 33791, 70, 1 }, + /* tcId: 393. edge case for u1 */ + {2925, 0, 6, 33861, 70, 1 }, + /* tcId: 394. edge case for u1 */ + {2990, 0, 6, 33931, 70, 1 }, + /* tcId: 395. edge case for u1 */ + {3055, 0, 6, 34001, 70, 1 }, + /* tcId: 396. edge case for u1 */ + {3120, 0, 6, 34071, 70, 1 }, + /* tcId: 397. edge case for u1 */ + {3185, 0, 6, 34141, 70, 1 }, + /* tcId: 398. edge case for u1 */ + {3250, 0, 6, 34211, 70, 1 }, + /* tcId: 399. edge case for u1 */ + {3315, 0, 6, 34281, 70, 1 }, + /* tcId: 400. edge case for u1 */ + {3380, 0, 6, 34351, 70, 1 }, + /* tcId: 401. edge case for u1 */ + {3445, 0, 6, 34421, 70, 1 }, + /* tcId: 402. edge case for u1 */ + {3510, 0, 6, 34491, 70, 1 }, + /* tcId: 403. edge case for u1 */ + {3575, 0, 6, 34561, 70, 1 }, + /* tcId: 404. edge case for u1 */ + {3640, 0, 6, 34631, 70, 1 }, + /* tcId: 405. edge case for u1 */ + {3705, 0, 6, 34701, 70, 1 }, + /* tcId: 406. edge case for u1 */ + {3770, 0, 6, 34771, 70, 1 }, + /* tcId: 407. edge case for u1 */ + {3835, 0, 6, 34841, 70, 1 }, + /* tcId: 408. edge case for u2 */ + {3900, 0, 6, 34911, 70, 1 }, + /* tcId: 409. edge case for u2 */ + {3965, 0, 6, 34981, 70, 1 }, + /* tcId: 410. edge case for u2 */ + {4030, 0, 6, 35051, 70, 1 }, + /* tcId: 411. edge case for u2 */ + {4095, 0, 6, 35121, 70, 1 }, + /* tcId: 412. edge case for u2 */ + {4160, 0, 6, 35191, 70, 1 }, + /* tcId: 413. edge case for u2 */ + {4225, 0, 6, 35261, 69, 1 }, + /* tcId: 414. edge case for u2 */ + {4290, 0, 6, 35330, 70, 1 }, + /* tcId: 415. edge case for u2 */ + {4355, 0, 6, 35400, 70, 1 }, + /* tcId: 416. edge case for u2 */ + {4420, 0, 6, 35470, 70, 1 }, + /* tcId: 417. edge case for u2 */ + {4485, 0, 6, 35540, 70, 1 }, + /* tcId: 418. edge case for u2 */ + {4550, 0, 6, 35610, 70, 1 }, + /* tcId: 419. edge case for u2 */ + {4615, 0, 6, 35680, 70, 1 }, + /* tcId: 420. edge case for u2 */ + {4680, 0, 6, 35750, 70, 1 }, + /* tcId: 421. edge case for u2 */ + {4745, 0, 6, 35820, 70, 1 }, + /* tcId: 422. edge case for u2 */ + {4810, 0, 6, 35890, 70, 1 }, + /* tcId: 423. point duplication during verification */ + {4875, 0, 6, 35960, 70, 1 }, + /* tcId: 424. duplication bug */ + {4940, 0, 6, 36030, 70, 0 }, + /* tcId: 425. comparison with point at infinity */ + {5005, 0, 6, 36100, 70, 0 }, + /* tcId: 426. extreme value for k and edgecase s */ + {5070, 0, 6, 36170, 71, 1 }, + /* tcId: 427. extreme value for k and s^-1 */ + {5135, 0, 6, 36241, 71, 1 }, + /* tcId: 428. extreme value for k and s^-1 */ + {5200, 0, 6, 36312, 71, 1 }, + /* tcId: 429. extreme value for k and s^-1 */ + {5265, 0, 6, 36383, 71, 1 }, + /* tcId: 430. extreme value for k and s^-1 */ + {5330, 0, 6, 36454, 71, 1 }, + /* tcId: 431. extreme value for k */ + {5395, 0, 6, 36525, 71, 1 }, + /* tcId: 432. extreme value for k and edgecase s */ + {5460, 0, 6, 36596, 70, 1 }, + /* tcId: 433. extreme value for k and s^-1 */ + {5525, 0, 6, 36666, 70, 1 }, + /* tcId: 434. extreme value for k and s^-1 */ + {5590, 0, 6, 36736, 70, 1 }, + /* tcId: 435. extreme value for k and s^-1 */ + {5655, 0, 6, 36806, 70, 1 }, + /* tcId: 436. extreme value for k and s^-1 */ + {5720, 0, 6, 36876, 70, 1 }, + /* tcId: 437. extreme value for k */ + {5785, 0, 6, 36946, 70, 1 }, + /* tcId: 438. public key shares x-coordinate with generator */ + {5850, 0, 6, 37016, 71, 0 }, + /* tcId: 439. public key shares x-coordinate with generator */ + {5850, 0, 6, 37087, 70, 0 }, + /* tcId: 440. public key shares x-coordinate with generator */ + {5915, 0, 6, 37157, 71, 0 }, + /* tcId: 441. public key shares x-coordinate with generator */ + {5915, 0, 6, 37228, 70, 0 }, + /* tcId: 442. pseudorandom signature */ + {5980, 546, 0, 37298, 71, 1 }, + /* tcId: 443. pseudorandom signature */ + {5980, 546, 3, 37369, 70, 1 }, + /* tcId: 444. pseudorandom signature */ + {5980, 0, 6, 37439, 71, 1 }, + /* tcId: 445. pseudorandom signature */ + {5980, 549, 20, 37510, 70, 1 }, + /* tcId: 446. y-coordinate of the public key is small */ + {6045, 569, 7, 37580, 70, 1 }, + /* tcId: 447. y-coordinate of the public key is small */ + {6045, 569, 7, 37650, 70, 1 }, + /* tcId: 448. y-coordinate of the public key is small */ + {6045, 569, 7, 37720, 71, 1 }, + /* tcId: 449. y-coordinate of the public key is large */ + {6110, 569, 7, 37791, 70, 1 }, + /* tcId: 450. y-coordinate of the public key is large */ + {6110, 569, 7, 37861, 71, 1 }, + /* tcId: 451. y-coordinate of the public key is large */ + {6110, 569, 7, 37932, 70, 1 }, + /* tcId: 452. x-coordinate of the public key is small */ + {6175, 569, 7, 38002, 70, 1 }, + /* tcId: 453. x-coordinate of the public key is small */ + {6175, 569, 7, 38072, 71, 1 }, + /* tcId: 454. x-coordinate of the public key is small */ + {6175, 569, 7, 38143, 71, 1 }, + /* tcId: 455. x-coordinate of the public key has many trailing 1's */ + {6240, 569, 7, 38214, 70, 1 }, + /* tcId: 456. x-coordinate of the public key has many trailing 1's */ + {6240, 569, 7, 38284, 71, 1 }, + /* tcId: 457. x-coordinate of the public key has many trailing 1's */ + {6240, 569, 7, 38355, 71, 1 }, + /* tcId: 458. y-coordinate of the public key has many trailing 1's */ + {6305, 569, 7, 38426, 70, 1 }, + /* tcId: 459. y-coordinate of the public key has many trailing 1's */ + {6305, 569, 7, 38496, 71, 1 }, + /* tcId: 460. y-coordinate of the public key has many trailing 1's */ + {6305, 569, 7, 38567, 71, 1 }, + /* tcId: 461. x-coordinate of the public key has many trailing 0's */ + {6370, 569, 7, 38638, 70, 1 }, + /* tcId: 462. x-coordinate of the public key has many trailing 0's */ + {6370, 569, 7, 38708, 70, 1 }, + /* tcId: 463. x-coordinate of the public key has many trailing 0's */ + {6370, 569, 7, 38778, 71, 1 }, + +}; diff --git a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json new file mode 100644 index 0000000000..9c90747993 --- /dev/null +++ b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json @@ -0,0 +1,6360 @@ +{ + "algorithm" : "ECDSA", + "schema" : "ecdsa_bitcoin_verify_schema.json", + "generatorVersion" : "0.9rc5", + "numberOfTests" : 463, + "header" : [ + "Test vectors of type EcdsaBitcoinVerify are meant for the verification", + "of a ECDSA variant used for bitcoin, that add signature non-malleability." + ], + "notes" : { + "ArithmeticError" : { + "bugType" : "EDGE_CASE", + "description" : "Some implementations of ECDSA have arithmetic errors that occur when intermediate results have extreme values. This test vector has been constructed to test such occurences.", + "cves" : [ + "CVE-2017-18146" + ] + }, + "BerEncodedSignature" : { + "bugType" : "BER_ENCODING", + "description" : "ECDSA signatures are usually DER encoded. This signature contains valid values for r and s, but it uses alternative BER encoding.", + "effect" : "Accepting alternative BER encodings may be benign in some cases, or be an issue if protocol requires signature malleability.", + "cves" : [ + "CVE-2020-14966", + "CVE-2020-13822", + "CVE-2019-14859", + "CVE-2016-1000342" + ] + }, + "EdgeCasePublicKey" : { + "bugType" : "EDGE_CASE", + "description" : "The test vector uses a special case public key. " + }, + "EdgeCaseShamirMultiplication" : { + "bugType" : "EDGE_CASE", + "description" : "Shamir proposed a fast method for computing the sum of two scalar multiplications efficiently. This test vector has been constructed so that an intermediate result is the point at infinity if Shamir's method is used." + }, + "IntegerOverflow" : { + "bugType" : "CAN_OF_WORMS", + "description" : "The test vector contains an r and s that has been modified, so that the original value is restored if the implementation ignores the most significant bits.", + "effect" : "Without further analysis it is unclear if the modification can be used to forge signatures." + }, + "InvalidEncoding" : { + "bugType" : "CAN_OF_WORMS", + "description" : "ECDSA signatures are encoded using ASN.1. This test vector contains an incorrectly encoded signature. The test vector itself was generated from a valid signature by modifying its encoding.", + "effect" : "Without further analysis it is unclear if the modification can be used to forge signatures." + }, + "InvalidSignature" : { + "bugType" : "AUTH_BYPASS", + "description" : "The signature contains special case values such as r=0 and s=0. Buggy implementations may accept such values, if the implementation does not check boundaries and computes s^(-1) == 0.", + "effect" : "Accepting such signatures can have the effect that an adversary can forge signatures without even knowning the message to sign.", + "cves" : [ + "CVE-2022-21449", + "CVE-2021-43572", + "CVE-2022-24884" + ] + }, + "InvalidTypesInSignature" : { + "bugType" : "AUTH_BYPASS", + "description" : "The signature contains invalid types. Dynamic typed languages sometime coerce such values of different types into integers. If an implementation is careless and has additional bugs, such as not checking integer boundaries then it may be possible that such signatures are accepted.", + "effect" : "Accepting such signatures can have the effect that an adversary can forge signatures without even knowning the message to sign.", + "cves" : [ + "CVE-2022-21449" + ] + }, + "ModifiedInteger" : { + "bugType" : "CAN_OF_WORMS", + "description" : "The test vector contains an r and s that has been modified. The goal is to check for arithmetic errors.", + "effect" : "Without further analysis it is unclear if the modification can be used to forge signatures." + }, + "ModifiedSignature" : { + "bugType" : "CAN_OF_WORMS", + "description" : "The test vector contains an invalid signature that was generated from a valid signature by modifying it.", + "effect" : "Without further analysis it is unclear if the modification can be used to forge signatures." + }, + "ModularInverse" : { + "bugType" : "EDGE_CASE", + "description" : "The test vectors contains a signature where computing the modular inverse of s hits an edge case.", + "effect" : "While the signature in this test vector is constructed and similar cases are unlikely to occur, it is important to determine if the underlying arithmetic error can be used to forge signatures.", + "cves" : [ + "CVE-2019-0865" + ] + }, + "PointDuplication" : { + "bugType" : "EDGE_CASE", + "description" : "Some implementations of ECDSA do not handle duplication and points at infinity correctly. This is a test vector that has been specially crafted to check for such an omission.", + "cves" : [ + "2020-12607", + "CVE-2015-2730" + ] + }, + "RangeCheck" : { + "bugType" : "CAN_OF_WORMS", + "description" : "The test vector contains an r and s that has been modified. By adding or subtracting the order of the group (or other values) the test vector checks whether signature verification verifies the range of r and s.", + "effect" : "Without further analysis it is unclear if the modification can be used to forge signatures." + }, + "SignatureMalleabilityBitcoin" : { + "bugType" : "SIGNATURE_MALLEABILITY", + "description" : "\"BitCoins\"-curves are curves where signature malleability can be a serious issue. An implementation should only accept a signature s where s < n/2. If an implementation is not meant for uses cases that require signature malleability then this implemenation should be tested with another set of test vectors.", + "effect" : "In bitcoin exchanges, it may be used to make a double deposits or double withdrawals", + "links" : [ + "https://en.bitcoin.it/wiki/Transaction_malleability", + "https://en.bitcoinwiki.org/wiki/Transaction_Malleability" + ] + }, + "SmallRandS" : { + "bugType" : "EDGE_CASE", + "description" : "The test vectors contains a signature where both r and s are small integers. Some libraries cannot verify such signatures.", + "effect" : "While the signature in this test vector is constructed and similar cases are unlikely to occur, it is important to determine if the underlying arithmetic error can be used to forge signatures.", + "cves" : [ + "2020-13895" + ] + }, + "SpecialCaseHash" : { + "bugType" : "EDGE_CASE", + "description" : "The test vector contains a signature where the hash of the message is a special case, e.g., contains a long run of 0 or 1 bits." + }, + "ValidSignature" : { + "bugType" : "BASIC", + "description" : "The test vector contains a valid signature that was generated pseudorandomly. Such signatures should not fail to verify unless some of the parameters (e.g. curve or hash function) are not supported." + } + }, + "testGroups" : [ + { + "type" : "EcdsaBitcoinVerify", + "publicKey" : { + "type" : "EcPublicKey", + "curve" : "secp256k1", + "keySize" : 256, + "uncompressed" : "04b838ff44e5bc177bf21189d0766082fc9d843226887fc9760371100b7ee20a6ff0c9d75bfba7b31a6bca1974496eeb56de357071955d83c4b1badaa0b21832e9", + "wx" : "00b838ff44e5bc177bf21189d0766082fc9d843226887fc9760371100b7ee20a6f", + "wy" : "00f0c9d75bfba7b31a6bca1974496eeb56de357071955d83c4b1badaa0b21832e9" + }, + "publicKeyDer" : "3056301006072a8648ce3d020106052b8104000a03420004b838ff44e5bc177bf21189d0766082fc9d843226887fc9760371100b7ee20a6ff0c9d75bfba7b31a6bca1974496eeb56de357071955d83c4b1badaa0b21832e9", + "publicKeyPem" : "-----BEGIN PUBLIC KEY-----\nMFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAEuDj/ROW8F3vyEYnQdmCC/J2EMiaIf8l2\nA3EQC37iCm/wyddb+6ezGmvKGXRJbutW3jVwcZVdg8Sxutqgshgy6Q==\n-----END PUBLIC KEY-----\n", + "sha" : 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"3045022100f6b0e2f6fe020cf7c0c20137434344ed7add6c4be51861e2d14cbda472a6ffb402206416c8dd3e5c5282b306e8dc8ff34ab64cc99549232d678d714402eb6ca7aa0f", + "result" : "valid" + }, + { + "tcId" : 457, + "comment" : "x-coordinate of the public key has many trailing 1's", + "flags" : [ + "EdgeCasePublicKey" + ], + "msg" : "4d657373616765", + "sig" : "3045022100db09d8460f05eff23bc7e436b67da563fa4b4edb58ac24ce201fa8a358125057022046da116754602940c8999c8d665f786c50f5772c0a3cdbda075e77eabc64df16", + "result" : "valid" + } + ] + }, + { + "type" : "EcdsaBitcoinVerify", + "publicKey" : { + "type" : "EcPublicKey", + "curve" : "secp256k1", + "keySize" : 256, + "uncompressed" : "04d12e6c66b67734c3c84d2601cf5d35dc097e27637f0aca4a4fdb74b6aadd3bb93f5bdff88bd5736df898e699006ed750f11cf07c5866cd7ad70c7121ffffffff", + "wx" : "00d12e6c66b67734c3c84d2601cf5d35dc097e27637f0aca4a4fdb74b6aadd3bb9", + "wy" : "3f5bdff88bd5736df898e699006ed750f11cf07c5866cd7ad70c7121ffffffff" + }, + "publicKeyDer" : "3056301006072a8648ce3d020106052b8104000a03420004d12e6c66b67734c3c84d2601cf5d35dc097e27637f0aca4a4fdb74b6aadd3bb93f5bdff88bd5736df898e699006ed750f11cf07c5866cd7ad70c7121ffffffff", + "publicKeyPem" : "-----BEGIN PUBLIC KEY-----\nMFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAE0S5sZrZ3NMPITSYBz1013Al+J2N/CspK\nT9t0tqrdO7k/W9/4i9VzbfiY5pkAbtdQ8RzwfFhmzXrXDHEh/////w==\n-----END PUBLIC KEY-----\n", + "sha" : "SHA-256", + "tests" : [ + { + "tcId" : 458, + "comment" : "y-coordinate of the public key has many trailing 1's", + "flags" : [ + "EdgeCasePublicKey" + ], + "msg" : "4d657373616765", + "sig" : "30440220592c41e16517f12fcabd98267674f974b588e9f35d35406c1a7bb2ed1d19b7b802203e65a06bd9f83caaeb7b00f2368d7e0dece6b12221269a9b5b765198f840a3a1", + "result" : "valid" + }, + { + "tcId" : 459, + "comment" : "y-coordinate of the public key has many trailing 1's", + "flags" : [ + "EdgeCasePublicKey" + ], + "msg" : "4d657373616765", + "sig" : "3045022100be0d70887d5e40821a61b68047de4ea03debfdf51cdf4d4b195558b959a032b202207d994b2d8f1dbbeb13534eb3f6e5dccd85f5c4133c27d9e64271b1826ce1f67d", + "result" : "valid" + }, + { + "tcId" : 460, + "comment" : "y-coordinate of the public key has many trailing 1's", + "flags" : [ + "EdgeCasePublicKey" + ], + "msg" : "4d657373616765", + "sig" : "3045022100fae92dfcb2ee392d270af3a5739faa26d4f97bfd39ed3cbee4d29e26af3b206a02206c9ba37f9faa6a1fd3f65f23b4e853d4692a7274240a12db7ba3884830630d16", + "result" : "valid" + } + ] + }, + { + "type" : "EcdsaBitcoinVerify", + "publicKey" : { + "type" : "EcPublicKey", + "curve" : "secp256k1", + "keySize" : 256, + "uncompressed" : "046d4a7f60d4774a4f0aa8bbdedb953c7eea7909407e3164755664bc2800000000e659d34e4df38d9e8c9eaadfba36612c769195be86c77aac3f36e78b538680fb", + "wx" : "6d4a7f60d4774a4f0aa8bbdedb953c7eea7909407e3164755664bc2800000000", + "wy" : "00e659d34e4df38d9e8c9eaadfba36612c769195be86c77aac3f36e78b538680fb" + }, + "publicKeyDer" : "3056301006072a8648ce3d020106052b8104000a034200046d4a7f60d4774a4f0aa8bbdedb953c7eea7909407e3164755664bc2800000000e659d34e4df38d9e8c9eaadfba36612c769195be86c77aac3f36e78b538680fb", + "publicKeyPem" : "-----BEGIN PUBLIC KEY-----\nMFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAEbUp/YNR3Sk8KqLve25U8fup5CUB+MWR1\nVmS8KAAAAADmWdNOTfONnoyeqt+6NmEsdpGVvobHeqw/NueLU4aA+w==\n-----END PUBLIC KEY-----\n", + "sha" : "SHA-256", + "tests" : [ + { + "tcId" : 461, + "comment" : "x-coordinate of the public key has many trailing 0's", + "flags" : [ + "EdgeCasePublicKey" + ], + "msg" : "4d657373616765", + "sig" : "30440220176a2557566ffa518b11226694eb9802ed2098bfe278e5570fe1d5d7af18a94302201291df6a0ed5fc0d15098e70bcf13a009284dfd0689d3bb4be6ceeb9be1487c4", + "result" : "valid" + }, + { + "tcId" : 462, + "comment" : "x-coordinate of the public key has many trailing 0's", + "flags" : [ + "EdgeCasePublicKey" + ], + "msg" : "4d657373616765", + "sig" : "3044022060be20c3dbc162dd34d26780621c104bbe5dace630171b2daef0d826409ee5c20220427f7e4d889d549170bda6a9409fb1cb8b0e763d13eea7bd97f64cf41dc6e497", + "result" : "valid" + }, + { + "tcId" : 463, + "comment" : "x-coordinate of the public key has many trailing 0's", + "flags" : [ + "EdgeCasePublicKey" + ], + "msg" : "4d657373616765", + "sig" : "3045022100edf03cf63f658883289a1a593d1007895b9f236d27c9c1f1313089aaed6b16ae02201a4dd6fc0814dc523d1fefa81c64fbf5e618e651e7096fccadbb94cd48e5e0cd", + "result" : "valid" + } + ] + } + ] +} diff --git a/tools/tests_wycheproof_generate.py b/tools/tests_wycheproof_generate.py new file mode 100755 index 0000000000..333f6fbef0 --- /dev/null +++ b/tools/tests_wycheproof_generate.py @@ -0,0 +1,114 @@ +#!/usr/bin/env python3 +# Copyright (c) 2023 Random "Randy" Lattice and Sean Andersen +# Distributed under the MIT software license, see the accompanying +# file COPYING or https://www.opensource.org/licenses/mit-license.php. +''' +Generate a C file with ECDSA testvectors from the Wycheproof project. +''' + +import json +import hashlib +import urllib.request +import sys + +filename_input = sys.argv[1] + +with open(filename_input) as f: + doc = json.load(f) + +num_groups = len(doc['testGroups']) + +def to_c_array(x): + if x == "": return "" + s = ',0x'.join(a+b for a,b in zip(x[::2], x[1::2])) + return "0x" + s + + +num_vectors = 0 +offset_msg_running, offset_pk_running, offset_sig = 0, 0, 0 +out = "" +messages = "" +signatures = "" +public_keys = "" +cache_msgs = {} +cache_public_keys = {} + +for i in range(num_groups): + group = doc['testGroups'][i] + num_tests = len(group['tests']) + public_key = group['publicKey'] + for j in range(num_tests): + test_vector = group['tests'][j] + # // 2 to convert hex to byte length + sig_size = len(test_vector['sig']) // 2 + msg_size = len(test_vector['msg']) // 2 + + if test_vector['result'] == "invalid": expected_verify = 0 + elif test_vector['result'] == "valid": expected_verify = 1 + else: raise ValueError("invalid result field") + + if num_vectors != 0 and sig_size != 0: signatures += ",\n " + + new_msg = False + msg = to_c_array(test_vector['msg']) + msg_offset = offset_msg_running + # check for repeated msg + if msg not in cache_msgs.keys(): + if num_vectors != 0 and msg_size != 0: messages += ",\n " + cache_msgs[msg] = offset_msg_running + messages += msg + new_msg = True + else: + msg_offset = cache_msgs[msg] + + new_pk = False + pk = to_c_array(public_key['uncompressed']) + pk_offset = offset_pk_running + # check for repeated pk + if pk not in cache_public_keys.keys(): + if num_vectors != 0: public_keys += ",\n " + cache_public_keys[pk] = offset_pk_running + public_keys += pk + new_pk = True + else: + pk_offset = cache_public_keys[pk] + + signatures += to_c_array(test_vector['sig']) + + out += " /" + "* tcId: " + str(test_vector['tcId']) + ". " + test_vector['comment'] + " *" + "/\n" + out += " {" + "{0}, {1}, {2}, {3}, {4}, {5}".format( + pk_offset, + msg_offset, + msg_size, + offset_sig, + sig_size, + expected_verify) + " },\n" + if new_msg: offset_msg_running += msg_size + if new_pk: offset_pk_running += 65 + offset_sig += sig_size + num_vectors += 1 + +struct_definition = """ +typedef struct { + size_t pk_offset; + size_t msg_offset; + size_t msg_len; + size_t sig_offset; + size_t sig_len; + int expected_verify; +} wycheproof_ecdsa_testvector; +""" + + +print("/* Note: this file was autogenerated using tests_wycheproof_generate.py. Do not edit. */") +print("#define SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS ({})".format(num_vectors)) + +print(struct_definition) + +print("static const unsigned char wycheproof_ecdsa_messages[] = { " + messages + "};\n") +print("static const unsigned char wycheproof_ecdsa_public_keys[] = { " + public_keys + "};\n") +print("static const unsigned char wycheproof_ecdsa_signatures[] = { " + signatures + "};\n") + +print("static const wycheproof_ecdsa_testvector testvectors[SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS] = {") +print(out) +print("};") From a575339c0282ba49a4f46c9c660a4cc3b6bfc703 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 29 Dec 2022 14:48:36 -0500 Subject: [PATCH 023/557] Remove bits argument from secp256k1_wnaf_const (always 256) --- src/bench_ecmult.c | 2 +- src/ecmult_const.h | 5 +-- src/ecmult_const_impl.h | 61 +++++++++++++----------------------- src/modules/ecdh/main_impl.h | 2 +- src/tests.c | 30 +++++++++--------- src/tests_exhaustive.c | 6 ++-- 6 files changed, 43 insertions(+), 63 deletions(-) diff --git a/src/bench_ecmult.c b/src/bench_ecmult.c index 98fb798d82..27d694a703 100644 --- a/src/bench_ecmult.c +++ b/src/bench_ecmult.c @@ -113,7 +113,7 @@ static void bench_ecmult_const(void* arg, int iters) { int i; for (i = 0; i < iters; ++i) { - secp256k1_ecmult_const(&data->output[i], &data->pubkeys[(data->offset1+i) % POINTS], &data->scalars[(data->offset2+i) % POINTS], 256); + secp256k1_ecmult_const(&data->output[i], &data->pubkeys[(data->offset1+i) % POINTS], &data->scalars[(data->offset2+i) % POINTS]); } } diff --git a/src/ecmult_const.h b/src/ecmult_const.h index 417f328535..9e065d555d 100644 --- a/src/ecmult_const.h +++ b/src/ecmult_const.h @@ -12,11 +12,9 @@ /** * Multiply: R = q*A (in constant-time) - * Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus - * one because we internally sometimes add 2 to the number during the WNAF conversion. * A must not be infinity. */ -static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q, int bits); +static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q); /** * Same as secp256k1_ecmult_const, but takes in an x coordinate of the base point @@ -35,7 +33,6 @@ static int secp256k1_ecmult_const_xonly( const secp256k1_fe *n, const secp256k1_fe *d, const secp256k1_scalar *q, - int bits, int known_on_curve ); diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index f23e0ec89d..f2b6f48285 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -130,7 +130,7 @@ static int secp256k1_wnaf_const(int *wnaf, const secp256k1_scalar *scalar, int w return skew; } -static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *scalar, int size) { +static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *scalar) { secp256k1_ge pre_a[ECMULT_TABLE_SIZE(WINDOW_A)]; secp256k1_ge tmpa; secp256k1_fe Z; @@ -145,18 +145,10 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons int i; /* build wnaf representation for q. */ - int rsize = size; - if (size > 128) { - rsize = 128; - /* split q into q_1 and q_lam (where q = q_1 + q_lam*lambda, and q_1 and q_lam are ~128 bit) */ - secp256k1_scalar_split_lambda(&q_1, &q_lam, scalar); - skew_1 = secp256k1_wnaf_const(wnaf_1, &q_1, WINDOW_A - 1, 128); - skew_lam = secp256k1_wnaf_const(wnaf_lam, &q_lam, WINDOW_A - 1, 128); - } else - { - skew_1 = secp256k1_wnaf_const(wnaf_1, scalar, WINDOW_A - 1, size); - skew_lam = 0; - } + /* split q into q_1 and q_lam (where q = q_1 + q_lam*lambda, and q_1 and q_lam are ~128 bit) */ + secp256k1_scalar_split_lambda(&q_1, &q_lam, scalar); + skew_1 = secp256k1_wnaf_const(wnaf_1, &q_1, WINDOW_A - 1, 128); + skew_lam = secp256k1_wnaf_const(wnaf_lam, &q_lam, WINDOW_A - 1, 128); /* Calculate odd multiples of a. * All multiples are brought to the same Z 'denominator', which is stored @@ -170,28 +162,23 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) { secp256k1_fe_normalize_weak(&pre_a[i].y); } - if (size > 128) { - for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) { - secp256k1_ge_mul_lambda(&pre_a_lam[i], &pre_a[i]); - } - + for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) { + secp256k1_ge_mul_lambda(&pre_a_lam[i], &pre_a[i]); } /* first loop iteration (separated out so we can directly set r, rather * than having it start at infinity, get doubled several times, then have * its new value added to it) */ - i = wnaf_1[WNAF_SIZE_BITS(rsize, WINDOW_A - 1)]; + i = wnaf_1[WNAF_SIZE_BITS(128, WINDOW_A - 1)]; VERIFY_CHECK(i != 0); ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a, i, WINDOW_A); secp256k1_gej_set_ge(r, &tmpa); - if (size > 128) { - i = wnaf_lam[WNAF_SIZE_BITS(rsize, WINDOW_A - 1)]; - VERIFY_CHECK(i != 0); - ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, i, WINDOW_A); - secp256k1_gej_add_ge(r, r, &tmpa); - } + i = wnaf_lam[WNAF_SIZE_BITS(128, WINDOW_A - 1)]; + VERIFY_CHECK(i != 0); + ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, i, WINDOW_A); + secp256k1_gej_add_ge(r, r, &tmpa); /* remaining loop iterations */ - for (i = WNAF_SIZE_BITS(rsize, WINDOW_A - 1) - 1; i >= 0; i--) { + for (i = WNAF_SIZE_BITS(128, WINDOW_A - 1) - 1; i >= 0; i--) { int n; int j; for (j = 0; j < WINDOW_A - 1; ++j) { @@ -202,12 +189,10 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a, n, WINDOW_A); VERIFY_CHECK(n != 0); secp256k1_gej_add_ge(r, r, &tmpa); - if (size > 128) { - n = wnaf_lam[i]; - ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, n, WINDOW_A); - VERIFY_CHECK(n != 0); - secp256k1_gej_add_ge(r, r, &tmpa); - } + n = wnaf_lam[i]; + ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, n, WINDOW_A); + VERIFY_CHECK(n != 0); + secp256k1_gej_add_ge(r, r, &tmpa); } { @@ -218,17 +203,15 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons secp256k1_gej_add_ge(&tmpj, r, &tmpa); secp256k1_gej_cmov(r, &tmpj, skew_1); - if (size > 128) { - secp256k1_ge_neg(&tmpa, &pre_a_lam[0]); - secp256k1_gej_add_ge(&tmpj, r, &tmpa); - secp256k1_gej_cmov(r, &tmpj, skew_lam); - } + secp256k1_ge_neg(&tmpa, &pre_a_lam[0]); + secp256k1_gej_add_ge(&tmpj, r, &tmpa); + secp256k1_gej_cmov(r, &tmpj, skew_lam); } secp256k1_fe_mul(&r->z, &r->z, &Z); } -static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, const secp256k1_fe *d, const secp256k1_scalar *q, int bits, int known_on_curve) { +static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, const secp256k1_fe *d, const secp256k1_scalar *q, int known_on_curve) { /* This algorithm is a generalization of Peter Dettman's technique for * avoiding the square root in a random-basepoint x-only multiplication @@ -346,7 +329,7 @@ static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, #ifdef VERIFY VERIFY_CHECK(!secp256k1_scalar_is_zero(q)); #endif - secp256k1_ecmult_const(&rj, &p, q, bits); + secp256k1_ecmult_const(&rj, &p, q); #ifdef VERIFY VERIFY_CHECK(!secp256k1_gej_is_infinity(&rj)); #endif diff --git a/src/modules/ecdh/main_impl.h b/src/modules/ecdh/main_impl.h index 5408c9de70..82b082a9f0 100644 --- a/src/modules/ecdh/main_impl.h +++ b/src/modules/ecdh/main_impl.h @@ -50,7 +50,7 @@ int secp256k1_ecdh(const secp256k1_context* ctx, unsigned char *output, const se overflow |= secp256k1_scalar_is_zero(&s); secp256k1_scalar_cmov(&s, &secp256k1_scalar_one, overflow); - secp256k1_ecmult_const(&res, &pt, &s, 256); + secp256k1_ecmult_const(&res, &pt, &s); secp256k1_ge_set_gej(&pt, &res); /* Compute a hash of the point */ diff --git a/src/tests.c b/src/tests.c index 729b7f852e..a9201b74b3 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4338,9 +4338,9 @@ static void test_ecmult_target(const secp256k1_scalar* target, int mode) { secp256k1_ecmult(&p2j, &pj, &n2, &zero); secp256k1_ecmult(&ptj, &pj, target, &zero); } else { - secp256k1_ecmult_const(&p1j, &p, &n1, 256); - secp256k1_ecmult_const(&p2j, &p, &n2, 256); - secp256k1_ecmult_const(&ptj, &p, target, 256); + secp256k1_ecmult_const(&p1j, &p, &n1); + secp256k1_ecmult_const(&p2j, &p, &n2); + secp256k1_ecmult_const(&ptj, &p, target); } /* Add them all up: n1*P + n2*P + target*P = (n1+n2+target)*P = (n1+n1-n1-n2)*P = 0. */ @@ -4403,7 +4403,7 @@ static void ecmult_const_random_mult(void) { 0xb84e4e1b, 0xfb77e21f, 0x96baae2a, 0x63dec956 ); secp256k1_gej b; - secp256k1_ecmult_const(&b, &a, &xn, 256); + secp256k1_ecmult_const(&b, &a, &xn); CHECK(secp256k1_ge_is_valid_var(&a)); ge_equals_gej(&expected_b, &b); @@ -4419,12 +4419,12 @@ static void ecmult_const_commutativity(void) { random_scalar_order_test(&a); random_scalar_order_test(&b); - secp256k1_ecmult_const(&res1, &secp256k1_ge_const_g, &a, 256); - secp256k1_ecmult_const(&res2, &secp256k1_ge_const_g, &b, 256); + secp256k1_ecmult_const(&res1, &secp256k1_ge_const_g, &a); + secp256k1_ecmult_const(&res2, &secp256k1_ge_const_g, &b); secp256k1_ge_set_gej(&mid1, &res1); secp256k1_ge_set_gej(&mid2, &res2); - secp256k1_ecmult_const(&res1, &mid1, &b, 256); - secp256k1_ecmult_const(&res2, &mid2, &a, 256); + secp256k1_ecmult_const(&res1, &mid1, &b); + secp256k1_ecmult_const(&res2, &mid2, &a); secp256k1_ge_set_gej(&mid1, &res1); secp256k1_ge_set_gej(&mid2, &res2); ge_equals_ge(&mid1, &mid2); @@ -4440,13 +4440,13 @@ static void ecmult_const_mult_zero_one(void) { secp256k1_scalar_negate(&negone, &one); random_group_element_test(&point); - secp256k1_ecmult_const(&res1, &point, &zero, 3); + secp256k1_ecmult_const(&res1, &point, &zero); secp256k1_ge_set_gej(&res2, &res1); CHECK(secp256k1_ge_is_infinity(&res2)); - secp256k1_ecmult_const(&res1, &point, &one, 2); + secp256k1_ecmult_const(&res1, &point, &one); secp256k1_ge_set_gej(&res2, &res1); ge_equals_ge(&res2, &point); - secp256k1_ecmult_const(&res1, &point, &negone, 256); + secp256k1_ecmult_const(&res1, &point, &negone); secp256k1_gej_neg(&res1, &res1); secp256k1_ge_set_gej(&res2, &res1); ge_equals_ge(&res2, &point); @@ -4476,7 +4476,7 @@ static void ecmult_const_mult_xonly(void) { n = base.x; } /* Perform x-only multiplication. */ - res = secp256k1_ecmult_const_xonly(&resx, &n, (i & 1) ? &d : NULL, &q, 256, i & 2); + res = secp256k1_ecmult_const_xonly(&resx, &n, (i & 1) ? &d : NULL, &q, i & 2); CHECK(res); /* Perform normal multiplication. */ secp256k1_gej_set_ge(&basej, &base); @@ -4509,7 +4509,7 @@ static void ecmult_const_mult_xonly(void) { } else { n = x; } - res = secp256k1_ecmult_const_xonly(&r, &n, (i & 1) ? &d : NULL, &q, 256, 0); + res = secp256k1_ecmult_const_xonly(&r, &n, (i & 1) ? &d : NULL, &q, 0); CHECK(res == 0); } } @@ -4534,7 +4534,7 @@ static void ecmult_const_chain_multiply(void) { for (i = 0; i < 100; ++i) { secp256k1_ge tmp; secp256k1_ge_set_gej(&tmp, &point); - secp256k1_ecmult_const(&point, &tmp, &scalar, 256); + secp256k1_ecmult_const(&point, &tmp, &scalar); } secp256k1_ge_set_gej(&res, &point); ge_equals_gej(&res, &expected_point); @@ -5432,7 +5432,7 @@ static void test_ecmult_accumulate(secp256k1_sha256* acc, const secp256k1_scalar secp256k1_ecmult(&rj3, &infj, &zero, x); secp256k1_ecmult_multi_var(NULL, scratch, &rj4, x, NULL, NULL, 0); secp256k1_ecmult_multi_var(NULL, scratch, &rj5, &zero, test_ecmult_accumulate_cb, (void*)x, 1); - secp256k1_ecmult_const(&rj6, &secp256k1_ge_const_g, x, 256); + secp256k1_ecmult_const(&rj6, &secp256k1_ge_const_g, x); secp256k1_ge_set_gej_var(&r, &rj1); ge_equals_gej(&r, &rj2); ge_equals_gej(&r, &rj3); diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 63b6ef03af..e7bd6c724a 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -203,19 +203,19 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge secp256k1_scalar_set_int(&ng, j); /* Test secp256k1_ecmult_const. */ - secp256k1_ecmult_const(&tmp, &group[i], &ng, 256); + secp256k1_ecmult_const(&tmp, &group[i], &ng); ge_equals_gej(&group[(i * j) % EXHAUSTIVE_TEST_ORDER], &tmp); if (j != 0) { /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, and xd=NULL. */ - ret = secp256k1_ecmult_const_xonly(&tmpf, &group[i].x, NULL, &ng, 256, 0); + ret = secp256k1_ecmult_const_xonly(&tmpf, &group[i].x, NULL, &ng, 0); CHECK(ret); CHECK(secp256k1_fe_equal_var(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, with random xd. */ random_fe_non_zero(&xd); secp256k1_fe_mul(&xn, &xd, &group[i].x); - ret = secp256k1_ecmult_const_xonly(&tmpf, &xn, &xd, &ng, 256, 0); + ret = secp256k1_ecmult_const_xonly(&tmpf, &xn, &xd, &ng, 0); CHECK(ret); CHECK(secp256k1_fe_equal_var(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); } From 0e091669a13190289ed9dcc2ea9b8c330412cbc7 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 10 Apr 2023 15:16:10 +0200 Subject: [PATCH 024/557] changelog: Catch up in preparation of 0.3.1 Co-authored-by: Pieter Wuille --- CHANGELOG.md | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 7f43843641..4785d83b36 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Security + - Fix "constant-timeness" issue with Clang >=14 that could leave applications using libsecp256k1 vulnerable to a timing side-channel attack. The fix avoids secret-dependent control flow and secret-dependent memory accesses in conditional moves of memory objects when libsecp256k1 is compiled with Clang >=14. + +#### Added + - Added tests against [Project Wycheproof's](https://github.com/google/wycheproof/) set of ECDSA test vectors (Bitcoin "low-S" variant), a fixed set of test cases designed to trigger various edge cases. + +#### Changed + - Increased minimum required CMake version to 3.13. CMake builds remain experimental. + ## [0.3.0] - 2023-03-08 #### Added From 1d9a13fc2640b9bf870cba65dc69c504c1c9468d Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 10 Apr 2023 15:19:10 +0200 Subject: [PATCH 025/557] changelog: Remove inconsistent newlines --- CHANGELOG.md | 2 -- 1 file changed, 2 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 4785d83b36..a1c5aaf1a2 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -34,7 +34,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - Removed the configuration header `src/libsecp256k1-config.h`. We recommend passing flags to `./configure` or `cmake` to set configuration options (see `./configure --help` or `cmake -LH`). If you cannot or do not want to use one of the supported build systems, pass configuration flags such as `-DSECP256K1_ENABLE_MODULE_SCHNORRSIG` manually to the compiler (see the file `configure.ac` for supported flags). #### ABI Compatibility - Due to changes in the API regarding `secp256k1_context_static` described above, the ABI is *not* compatible with previous versions. ## [0.2.0] - 2022-12-12 @@ -54,7 +53,6 @@ Due to changes in the API regarding `secp256k1_context_static` described above, - Module `schnorrsig`: renamed `secp256k1_schnorrsig_sign` to `secp256k1_schnorrsig_sign32`. #### ABI Compatibility - Since this is the first release, we do not compare application binary interfaces. However, there are earlier unreleased versions of libsecp256k1 that are *not* ABI compatible with this version. From 898e1c676e177af73b2c7b540cc93e72a2790fa2 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 10 Apr 2023 15:52:26 +0200 Subject: [PATCH 026/557] release: Prepare for 0.3.1 --- CHANGELOG.md | 6 +++++- configure.ac | 2 +- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index a1c5aaf1a2..8346cf33e2 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,7 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.3.1] - 2023-04-10 +We strongly recommend updating to 0.3.1 if you use or plan to use Clang >=14 to compile libsecp256k1, e.g., Xcode >=14 on macOS has Clang >=14. When in doubt, check the Clang version using `clang -v`. #### Security - Fix "constant-timeness" issue with Clang >=14 that could leave applications using libsecp256k1 vulnerable to a timing side-channel attack. The fix avoids secret-dependent control flow and secret-dependent memory accesses in conditional moves of memory objects when libsecp256k1 is compiled with Clang >=14. @@ -16,6 +17,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 #### Changed - Increased minimum required CMake version to 3.13. CMake builds remain experimental. +#### ABI Compatibility +The ABI is compatible with version 0.3.0. + ## [0.3.0] - 2023-03-08 #### Added diff --git a/configure.ac b/configure.ac index 1976789f1a..a062b3d0fe 100644 --- a/configure.ac +++ b/configure.ac @@ -6,7 +6,7 @@ AC_PREREQ([2.60]) define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 3) define(_PKG_VERSION_PATCH, 1) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: From 1b6fb5593c3b0dad8f8ad17ddd29ca30ebd00af3 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 10 Apr 2023 15:19:07 +0000 Subject: [PATCH 027/557] doc: clarify process for patch releases --- doc/release-process.md | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/doc/release-process.md b/doc/release-process.md index 70a35f0910..79dc36ecc3 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -16,8 +16,10 @@ This process also assumes that there will be no minor releases for old major rel 1. Open a PR to the master branch with a commit (using message `"release: prepare for $MAJOR.$MINOR.$PATCH"`, for example) that * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) (make sure to include an entry for `### ABI Compatibility`), - * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` and sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and - * updates `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_*` in `CMakeLists.txt`. + * sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and + * if this is not a patch release + * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` in `configure.ac` and + * updates `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_*` in `CMakeLists.txt`. 2. After the PR is merged, tag the commit and push it: ``` RELEASE_COMMIT= From 6a37b2a5ea9075c5dff14b3067c61114a334a2ba Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 10 Apr 2023 20:52:11 +0200 Subject: [PATCH 028/557] changelog: Fix link --- CHANGELOG.md | 1 + 1 file changed, 1 insertion(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 8346cf33e2..dab665578a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -67,6 +67,7 @@ The number was given by the build system since the introduction of autotools in Therefore, this version number does not uniquely identify a set of source files. [unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.0...HEAD +[0.3.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.0...v0.3.1 [0.3.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.2.0...v0.3.0 [0.2.0]: https://github.com/bitcoin-core/secp256k1/compare/423b6d19d373f1224fd671a982584d7e7900bc93..v0.2.0 [0.1.0]: https://github.com/bitcoin-core/secp256k1/commit/423b6d19d373f1224fd671a982584d7e7900bc93 From 656c6ea8d8ec5b4f1fa91bc7f0a0ecd10c5cf5a0 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 10 Apr 2023 15:48:42 +0000 Subject: [PATCH 029/557] release cleanup: bump version after 0.3.1 --- CHANGELOG.md | 4 +++- CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index dab665578a..6d23662a93 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.3.1] - 2023-04-10 We strongly recommend updating to 0.3.1 if you use or plan to use Clang >=14 to compile libsecp256k1, e.g., Xcode >=14 on macOS has Clang >=14. When in doubt, check the Clang version using `clang -v`. @@ -66,7 +68,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.0...HEAD +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.1...HEAD [0.3.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.0...v0.3.1 [0.3.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.2.0...v0.3.0 [0.2.0]: https://github.com/bitcoin-core/secp256k1/compare/423b6d19d373f1224fd671a982584d7e7900bc93..v0.2.0 diff --git a/CMakeLists.txt b/CMakeLists.txt index 5d030d758e..a70165e356 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -10,7 +10,7 @@ endif() # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. -project(libsecp256k1 VERSION 0.3.1 LANGUAGES C) +project(libsecp256k1 VERSION 0.3.2 LANGUAGES C) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -18,7 +18,7 @@ project(libsecp256k1 VERSION 0.3.1 LANGUAGES C) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 2) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 2) set(${PROJECT_NAME}_LIB_VERSION_AGE 0) set(CMAKE_C_STANDARD 90) diff --git a/configure.ac b/configure.ac index a062b3d0fe..0b555eac67 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 3) -define(_PKG_VERSION_PATCH, 1) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 2) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 2) -define(_LIB_VERSION_REVISION, 1) +define(_LIB_VERSION_REVISION, 2) define(_LIB_VERSION_AGE, 0) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 1ecb94ebe9800900c7dd3a4f9883c600e25eecf7 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 11 Apr 2023 18:59:12 +0100 Subject: [PATCH 030/557] build: Make `SECP_VALGRIND_CHECK` preserve `CPPFLAGS` --- build-aux/m4/bitcoin_secp.m4 | 1 + 1 file changed, 1 insertion(+) diff --git a/build-aux/m4/bitcoin_secp.m4 b/build-aux/m4/bitcoin_secp.m4 index 624f5e956e..154157ffb4 100644 --- a/build-aux/m4/bitcoin_secp.m4 +++ b/build-aux/m4/bitcoin_secp.m4 @@ -21,6 +21,7 @@ if test x"$has_valgrind" != x"yes"; then # error "Valgrind does not support this platform." #endif ]])], [has_valgrind=yes]) + CPPFLAGS="$CPPFLAGS_TEMP" fi AC_MSG_RESULT($has_valgrind) ]) From dc0657c7622f5a13afc3876eca7e2fc7cabb9a10 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 13 Apr 2023 12:23:30 +0100 Subject: [PATCH 031/557] build: Fix C4005 "macro redefinition" MSVC warnings in examples --- configure.ac | 1 - examples/CMakeLists.txt | 3 --- examples/examples_util.h | 6 ++++++ 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/configure.ac b/configure.ac index 0b555eac67..6bf5b573dd 100644 --- a/configure.ac +++ b/configure.ac @@ -122,7 +122,6 @@ AC_DEFUN([SECP_TRY_APPEND_DEFAULT_CFLAGS], [ # Note that "/opt" and "-opt" are equivalent for MSVC; we use "-opt" because "/opt" looks like a path. if test x"$GCC" != x"yes" && test x"$build_windows" = x"yes"; then SECP_TRY_APPEND_CFLAGS([-W2 -wd4146], $1) # Moderate warning level, disable warning C4146 "unary minus operator applied to unsigned type, result still unsigned" - SECP_TRY_APPEND_CFLAGS([-external:anglebrackets -external:W0], $1) # Suppress warnings from #include <...> files # We pass -ignore:4217 to the MSVC linker to suppress warning 4217 when # importing variables from a statically linked secp256k1. # (See the libtool manual, section "Windows DLLs" for background.) diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index 0884b645e0..f60cde4377 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -2,9 +2,6 @@ add_library(example INTERFACE) target_include_directories(example INTERFACE ${PROJECT_SOURCE_DIR}/include ) -target_compile_options(example INTERFACE - $<$:/wd4005> -) target_link_libraries(example INTERFACE $<$:bcrypt> ) diff --git a/examples/examples_util.h b/examples/examples_util.h index a52b1fa115..507cd5594c 100644 --- a/examples/examples_util.h +++ b/examples/examples_util.h @@ -17,7 +17,13 @@ */ #if defined(_WIN32) +/* + * The defined WIN32_NO_STATUS macro disables return code definitions in + * windows.h, which avoids "macro redefinition" MSVC warnings in ntstatus.h. + */ +#define WIN32_NO_STATUS #include +#undef WIN32_NO_STATUS #include #include #elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) From 06c67dea9f6d46d3e24e810900fbb03045eae641 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 14 Apr 2023 07:09:46 +0200 Subject: [PATCH 032/557] autotools: Don't regenerate Wycheproof header automatically Pregenerated files that we distribute should not have dependencies in Makefile.am. For rationale, see the comments about the precomputed table files. See also https://github.com/bitcoin/bitcoin/pull/27445#issuecomment-1502994264 . --- Makefile.am | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile.am b/Makefile.am index 9af8eff9a3..36e26e3e8a 100644 --- a/Makefile.am +++ b/Makefile.am @@ -255,8 +255,8 @@ EXTRA_DIST += tools/tests_wycheproof_generate.py TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h -src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json - python3 tools/tests_wycheproof_generate.py $< > $@ +src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: + python3 tools/tests_wycheproof_generate.py src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ testvectors: $(TESTVECTORS) From 529b54d9224e680197e6052b505d2a66398e0d36 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 14 Apr 2023 07:11:46 +0200 Subject: [PATCH 033/557] autotools: Move Wycheproof header from EXTRA_DIST to noinst_HEADERS --- Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile.am b/Makefile.am index 36e26e3e8a..23555e344f 100644 --- a/Makefile.am +++ b/Makefile.am @@ -65,6 +65,7 @@ noinst_HEADERS += src/hash_impl.h noinst_HEADERS += src/field.h noinst_HEADERS += src/field_impl.h noinst_HEADERS += src/bench.h +noinst_HEADERS += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h noinst_HEADERS += contrib/lax_der_parsing.h noinst_HEADERS += contrib/lax_der_parsing.c noinst_HEADERS += contrib/lax_der_privatekey_parsing.h @@ -249,7 +250,6 @@ include src/modules/schnorrsig/Makefile.am.include endif EXTRA_DIST += src/wycheproof/WYCHEPROOF_COPYING -EXTRA_DIST += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h EXTRA_DIST += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json EXTRA_DIST += tools/tests_wycheproof_generate.py From 35ada3b954ccc6c54628fb3bcc0365d176297019 Mon Sep 17 00:00:00 2001 From: RandomLattice <128569685+RandomLattice@users.noreply.github.com> Date: Fri, 14 Apr 2023 13:30:51 +0200 Subject: [PATCH 034/557] tests: lint wycheproof's python script This PR lints tests_wycheproof_generate.py according to pylint. This is a follow-up to PR #1245. Co-authored-by: Sean Andersen <6730974+andozw@users.noreply.github.com> --- tools/tests_wycheproof_generate.py | 43 +++++++++++++++--------------- 1 file changed, 22 insertions(+), 21 deletions(-) diff --git a/tools/tests_wycheproof_generate.py b/tools/tests_wycheproof_generate.py index 333f6fbef0..b26dfa89d6 100755 --- a/tools/tests_wycheproof_generate.py +++ b/tools/tests_wycheproof_generate.py @@ -7,8 +7,6 @@ ''' import json -import hashlib -import urllib.request import sys filename_input = sys.argv[1] @@ -19,7 +17,8 @@ num_groups = len(doc['testGroups']) def to_c_array(x): - if x == "": return "" + if x == "": + return "" s = ',0x'.join(a+b for a,b in zip(x[::2], x[1::2])) return "0x" + s @@ -43,18 +42,23 @@ def to_c_array(x): sig_size = len(test_vector['sig']) // 2 msg_size = len(test_vector['msg']) // 2 - if test_vector['result'] == "invalid": expected_verify = 0 - elif test_vector['result'] == "valid": expected_verify = 1 - else: raise ValueError("invalid result field") + if test_vector['result'] == "invalid": + expected_verify = 0 + elif test_vector['result'] == "valid": + expected_verify = 1 + else: + raise ValueError("invalid result field") - if num_vectors != 0 and sig_size != 0: signatures += ",\n " + if num_vectors != 0 and sig_size != 0: + signatures += ",\n " new_msg = False msg = to_c_array(test_vector['msg']) msg_offset = offset_msg_running # check for repeated msg - if msg not in cache_msgs.keys(): - if num_vectors != 0 and msg_size != 0: messages += ",\n " + if msg not in cache_msgs: + if num_vectors != 0 and msg_size != 0: + messages += ",\n " cache_msgs[msg] = offset_msg_running messages += msg new_msg = True @@ -65,8 +69,9 @@ def to_c_array(x): pk = to_c_array(public_key['uncompressed']) pk_offset = offset_pk_running # check for repeated pk - if pk not in cache_public_keys.keys(): - if num_vectors != 0: public_keys += ",\n " + if pk not in cache_public_keys: + if num_vectors != 0: + public_keys += ",\n " cache_public_keys[pk] = offset_pk_running public_keys += pk new_pk = True @@ -76,15 +81,11 @@ def to_c_array(x): signatures += to_c_array(test_vector['sig']) out += " /" + "* tcId: " + str(test_vector['tcId']) + ". " + test_vector['comment'] + " *" + "/\n" - out += " {" + "{0}, {1}, {2}, {3}, {4}, {5}".format( - pk_offset, - msg_offset, - msg_size, - offset_sig, - sig_size, - expected_verify) + " },\n" - if new_msg: offset_msg_running += msg_size - if new_pk: offset_pk_running += 65 + out += f" {{{pk_offset}, {msg_offset}, {msg_size}, {offset_sig}, {sig_size}, {expected_verify} }},\n" + if new_msg: + offset_msg_running += msg_size + if new_pk: + offset_pk_running += 65 offset_sig += sig_size num_vectors += 1 @@ -101,7 +102,7 @@ def to_c_array(x): print("/* Note: this file was autogenerated using tests_wycheproof_generate.py. Do not edit. */") -print("#define SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS ({})".format(num_vectors)) +print(f"#define SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS ({num_vectors})") print(struct_definition) From ef49a11d29601e09e94134975c968e92c0214102 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Tue, 14 Mar 2023 21:15:35 +0000 Subject: [PATCH 035/557] build: allow static or shared but not both --- CMakeLists.txt | 18 +++++--- examples/CMakeLists.txt | 10 ++--- src/CMakeLists.txt | 96 +++++++++++++++++------------------------ 3 files changed, 53 insertions(+), 71 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 2ddf91aed0..40e88e3648 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -26,11 +26,10 @@ set(CMAKE_C_EXTENSIONS OFF) list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) -# We do not use CMake's BUILD_SHARED_LIBS option. -option(SECP256K1_BUILD_SHARED "Build shared library." ON) -option(SECP256K1_BUILD_STATIC "Build static library." ON) -if(NOT SECP256K1_BUILD_SHARED AND NOT SECP256K1_BUILD_STATIC) - message(FATAL_ERROR "At least one of SECP256K1_BUILD_SHARED and SECP256K1_BUILD_STATIC must be enabled.") +option(BUILD_SHARED_LIBS "Build shared libraries" ON) +option(SECP256K1_DISABLE_SHARED "Disable shared library. Overrides BUILD_SHARED_LIBS." OFF) +if(SECP256K1_DISABLE_SHARED) + set(BUILD_SHARED_LIBS OFF) endif() option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) @@ -225,8 +224,13 @@ message("\n") message("secp256k1 configure summary") message("===========================") message("Build artifacts:") -message(" shared library ...................... ${SECP256K1_BUILD_SHARED}") -message(" static library ...................... ${SECP256K1_BUILD_STATIC}") +if(BUILD_SHARED_LIBS) + set(library_type "Shared") +else() + set(library_type "Static") +endif() + +message(" library type ........................ ${library_type}") message("Optional modules:") message(" ECDH ................................ ${SECP256K1_ENABLE_MODULE_ECDH}") message(" ECDSA pubkey recovery ............... ${SECP256K1_ENABLE_MODULE_RECOVERY}") diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index 0884b645e0..ba2fe122f1 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -6,15 +6,11 @@ target_compile_options(example INTERFACE $<$:/wd4005> ) target_link_libraries(example INTERFACE + secp256k1 $<$:bcrypt> ) -if(SECP256K1_BUILD_SHARED) - target_link_libraries(example INTERFACE secp256k1) -elseif(SECP256K1_BUILD_STATIC) - target_link_libraries(example INTERFACE secp256k1_static) - if(MSVC) - target_link_options(example INTERFACE /IGNORE:4217) - endif() +if(NOT BUILD_SHARED_LIBS AND MSVC) + target_link_options(example INTERFACE /IGNORE:4217) endif() add_executable(ecdsa_example ecdsa.c) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 43996cc179..4758fad1c2 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -1,97 +1,79 @@ # Must be included before CMAKE_INSTALL_INCLUDEDIR is used. include(GNUInstallDirs) -set(${PROJECT_NAME}_installables "") +add_library(secp256k1_precomputed OBJECT EXCLUDE_FROM_ALL + precomputed_ecmult.c + precomputed_ecmult_gen.c +) + +# Add objects explicitly rather than linking to the object libs to keep them +# from being exported. +add_library(secp256k1 secp256k1.c $) + +add_library(secp256k1_asm INTERFACE) if(SECP256K1_ASM STREQUAL "arm") - add_library(common OBJECT + add_library(secp256k1_asm_arm OBJECT EXCLUDE_FROM_ALL) + target_sources(secp256k1_asm_arm PUBLIC asm/field_10x26_arm.s ) - set(common_obj "$") -else() - set(common_obj "") + target_sources(secp256k1 PRIVATE $) + target_link_libraries(secp256k1_asm INTERFACE secp256k1_asm_arm) endif() -add_library(precomputed OBJECT - precomputed_ecmult.c - precomputed_ecmult_gen.c -) -set(internal_obj "$" "${common_obj}") +# Define our export symbol only for Win32 and only for shared libs. +# This matches libtool's usage of DLL_EXPORT +if(WIN32) + set_target_properties(secp256k1 PROPERTIES DEFINE_SYMBOL "DLL_EXPORT") +endif() -add_library(secp256k1 SHARED EXCLUDE_FROM_ALL - secp256k1.c - ${internal_obj} -) -target_include_directories(secp256k1 INTERFACE +# Object libs don't know if they're being built for a shared or static lib. +# Grab the PIC property from secp256k1 which knows. +get_target_property(use_pic secp256k1 POSITION_INDEPENDENT_CODE) +set_target_properties(secp256k1_precomputed PROPERTIES POSITION_INDEPENDENT_CODE ${use_pic}) + +target_include_directories(secp256k1 PUBLIC $ ) -target_compile_definitions(secp256k1 PRIVATE - $<$:DLL_EXPORT> -) set_target_properties(secp256k1 PROPERTIES VERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION}" SOVERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}" ) -if(SECP256K1_BUILD_SHARED) - get_target_property(use_pic secp256k1 POSITION_INDEPENDENT_CODE) - set_target_properties(precomputed PROPERTIES POSITION_INDEPENDENT_CODE ${use_pic}) - set_target_properties(secp256k1 PROPERTIES EXCLUDE_FROM_ALL FALSE) - list(APPEND ${PROJECT_NAME}_installables secp256k1) -endif() - -add_library(secp256k1_static STATIC EXCLUDE_FROM_ALL - secp256k1.c - ${internal_obj} -) -target_include_directories(secp256k1_static INTERFACE - $ -) -if(NOT MSVC) - set_target_properties(secp256k1_static PROPERTIES - OUTPUT_NAME secp256k1 - ) -endif() -if(SECP256K1_BUILD_STATIC) - set_target_properties(secp256k1_static PROPERTIES EXCLUDE_FROM_ALL FALSE) - list(APPEND ${PROJECT_NAME}_installables secp256k1_static) -endif() - -add_library(link_library INTERFACE) -if(SECP256K1_BUILD_SHARED) - target_link_libraries(link_library INTERFACE secp256k1) -elseif(SECP256K1_BUILD_STATIC) - target_link_libraries(link_library INTERFACE secp256k1_static) -endif() if(SECP256K1_BUILD_BENCHMARK) add_executable(bench bench.c) - target_link_libraries(bench link_library) - add_executable(bench_internal bench_internal.c ${internal_obj}) - add_executable(bench_ecmult bench_ecmult.c ${internal_obj}) + target_link_libraries(bench secp256k1) + add_executable(bench_internal bench_internal.c) + target_link_libraries(bench_internal secp256k1_precomputed secp256k1_asm) + add_executable(bench_ecmult bench_ecmult.c) + target_link_libraries(bench_ecmult secp256k1_precomputed secp256k1_asm) endif() if(SECP256K1_BUILD_TESTS) - add_executable(noverify_tests tests.c ${internal_obj}) + add_executable(noverify_tests tests.c) + target_link_libraries(noverify_tests secp256k1_precomputed secp256k1_asm) add_test(noverify_tests noverify_tests) if(NOT CMAKE_BUILD_TYPE STREQUAL "Coverage") - add_executable(tests tests.c ${internal_obj}) + add_executable(tests tests.c) target_compile_definitions(tests PRIVATE VERIFY) + target_link_libraries(tests secp256k1_precomputed secp256k1_asm) add_test(tests tests) endif() endif() if(SECP256K1_BUILD_EXHAUSTIVE_TESTS) - # Note: do not include $ in exhaustive_tests (it uses runtime-generated tables). - add_executable(exhaustive_tests tests_exhaustive.c ${common_obj}) + # Note: do not include secp256k1_precomputed in exhaustive_tests (it uses runtime-generated tables). + add_executable(exhaustive_tests tests_exhaustive.c) + target_link_libraries(exhaustive_tests secp256k1_asm) target_compile_definitions(exhaustive_tests PRIVATE $<$>:VERIFY>) add_test(exhaustive_tests exhaustive_tests) endif() if(SECP256K1_BUILD_CTIME_TESTS) add_executable(ctime_tests ctime_tests.c) - target_link_libraries(ctime_tests link_library) + target_link_libraries(ctime_tests secp256k1) endif() -install(TARGETS ${${PROJECT_NAME}_installables} +install(TARGETS secp256k1 EXPORT ${PROJECT_NAME}-targets RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} From 08f4b1632d0ad976fe00ee606f3a95894555a2e1 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 14 Apr 2023 07:22:01 +0200 Subject: [PATCH 036/557] autotools: Move code around to tidy Makefile --- Makefile.am | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/Makefile.am b/Makefile.am index 23555e344f..20024e474e 100644 --- a/Makefile.am +++ b/Makefile.am @@ -223,6 +223,20 @@ maintainer-clean-local: clean-precomp clean-precomp: rm -f $(PRECOMP) +### Pregenerated test vectors +TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h + +src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: + python3 tools/tests_wycheproof_generate.py src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ + +testvectors: $(TESTVECTORS) + +maintainer-clean-testvectors: clean-testvectors + +clean-testvectors: + rm -f $(TESTVECTORS) + +### Additional files to distribute EXTRA_DIST = autogen.sh CHANGELOG.md SECURITY.md EXTRA_DIST += doc/release-process.md doc/safegcd_implementation.md EXTRA_DIST += examples/EXAMPLES_COPYING @@ -232,6 +246,9 @@ EXTRA_DIST += sage/group_prover.sage EXTRA_DIST += sage/prove_group_implementations.sage EXTRA_DIST += sage/secp256k1_params.sage EXTRA_DIST += sage/weierstrass_prover.sage +EXTRA_DIST += src/wycheproof/WYCHEPROOF_COPYING +EXTRA_DIST += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json +EXTRA_DIST += tools/tests_wycheproof_generate.py if ENABLE_MODULE_ECDH include src/modules/ecdh/Makefile.am.include @@ -248,19 +265,3 @@ endif if ENABLE_MODULE_SCHNORRSIG include src/modules/schnorrsig/Makefile.am.include endif - -EXTRA_DIST += src/wycheproof/WYCHEPROOF_COPYING -EXTRA_DIST += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json -EXTRA_DIST += tools/tests_wycheproof_generate.py - -TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h - -src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: - python3 tools/tests_wycheproof_generate.py src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ - -testvectors: $(TESTVECTORS) - -maintainer-clean-testvectors: clean-testvectors - -clean-testvectors: - rm -f $(TESTVECTORS) From 47ac3d63cd5e00a2d50cb489461c8bc349d37912 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Anna=20=E2=80=9CCyberTailor=E2=80=9D?= Date: Sun, 9 Apr 2023 12:51:53 +0500 Subject: [PATCH 037/557] cmake: Make installation optional Useful for embedding secp256k1 in a subproject. --- CMakeLists.txt | 2 + src/CMakeLists.txt | 93 ++++++++++++++++++++++++---------------------- 2 files changed, 50 insertions(+), 45 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index cbc35fa8af..91d2bed02c 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -32,6 +32,8 @@ if(SECP256K1_DISABLE_SHARED) set(BUILD_SHARED_LIBS OFF) endif() +option(SECP256K1_INSTALL "Enable installation" ON) + option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) if(SECP256K1_ENABLE_MODULE_ECDH) add_definitions(-DENABLE_MODULE_ECDH=1) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 4758fad1c2..cd1d6f00ee 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -73,51 +73,54 @@ if(SECP256K1_BUILD_CTIME_TESTS) target_link_libraries(ctime_tests secp256k1) endif() -install(TARGETS secp256k1 - EXPORT ${PROJECT_NAME}-targets - RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} - LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} - ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} -) -set(${PROJECT_NAME}_headers - "${PROJECT_SOURCE_DIR}/include/secp256k1.h" - "${PROJECT_SOURCE_DIR}/include/secp256k1_preallocated.h" -) -if(SECP256K1_ENABLE_MODULE_ECDH) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ecdh.h") -endif() -if(SECP256K1_ENABLE_MODULE_RECOVERY) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_recovery.h") -endif() -if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_extrakeys.h") -endif() -if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h") -endif() -install(FILES ${${PROJECT_NAME}_headers} - DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} -) +if(SECP256K1_INSTALL) + install(TARGETS secp256k1 + EXPORT ${PROJECT_NAME}-targets + RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} + LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} + ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} + ) + set(${PROJECT_NAME}_headers + "${PROJECT_SOURCE_DIR}/include/secp256k1.h" + "${PROJECT_SOURCE_DIR}/include/secp256k1_preallocated.h" + ) + if(SECP256K1_ENABLE_MODULE_ECDH) + list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ecdh.h") + endif() + if(SECP256K1_ENABLE_MODULE_RECOVERY) + list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_recovery.h") + endif() + if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) + list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_extrakeys.h") + endif() + if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) + list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h") + endif() + install(FILES ${${PROJECT_NAME}_headers} + DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} + ) -install(EXPORT ${PROJECT_NAME}-targets - FILE ${PROJECT_NAME}-targets.cmake - NAMESPACE ${PROJECT_NAME}:: - DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} -) + install(EXPORT ${PROJECT_NAME}-targets + FILE ${PROJECT_NAME}-targets.cmake + NAMESPACE ${PROJECT_NAME}:: + DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} + ) -include(CMakePackageConfigHelpers) -configure_package_config_file( - ${PROJECT_SOURCE_DIR}/cmake/config.cmake.in - ${PROJECT_NAME}-config.cmake - INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} - NO_SET_AND_CHECK_MACRO -) -write_basic_package_version_file(${PROJECT_NAME}-config-version.cmake - COMPATIBILITY SameMajorVersion -) -install( - FILES - ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake - ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake - DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} + include(CMakePackageConfigHelpers) + configure_package_config_file( + ${PROJECT_SOURCE_DIR}/cmake/config.cmake.in + ${PROJECT_NAME}-config.cmake + INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} + NO_SET_AND_CHECK_MACRO + ) + write_basic_package_version_file(${PROJECT_NAME}-config-version.cmake + COMPATIBILITY SameMajorVersion + ) + + install( + FILES + ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake + ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake + DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} ) +endif() From 8a8b6536ef52fbbd9690f859d2f02d7f4b3789f6 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 12 Mar 2023 19:45:00 +0000 Subject: [PATCH 038/557] cmake: Use `SameMinorVersion` compatibility mode Available in CMake 3.11+. --- src/CMakeLists.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index cd1d6f00ee..24eb0d3011 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -114,7 +114,7 @@ if(SECP256K1_INSTALL) NO_SET_AND_CHECK_MACRO ) write_basic_package_version_file(${PROJECT_NAME}-config-version.cmake - COMPATIBILITY SameMajorVersion + COMPATIBILITY SameMinorVersion ) install( From 04d4cc071a7aa92ad5edcf970a6cc2a8f415d36c Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 26 Mar 2023 13:00:14 +0100 Subject: [PATCH 039/557] cmake: Add `DESCRIPTION` and `HOMEPAGE_URL` options to `project` command `DESCRIPTION` is available in CMake 3.9+. `HOMEPAGE_URL` is available in CMake 3.12+. --- CMakeLists.txt | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 91d2bed02c..92ecf31759 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -7,10 +7,15 @@ if(CMAKE_VERSION VERSION_GREATER 3.14) cmake_policy(SET CMP0092 NEW) endif() -# The package (a.k.a. release) version is based on semantic versioning 2.0.0 of -# the API. All changes in experimental modules are treated as -# backwards-compatible and therefore at most increase the minor version. -project(libsecp256k1 VERSION 0.3.2 LANGUAGES C) +project(libsecp256k1 + # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of + # the API. All changes in experimental modules are treated as + # backwards-compatible and therefore at most increase the minor version. + VERSION 0.3.2 + DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." + HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" + LANGUAGES C +) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: From 8c2017035a9c0722aeb7f24162d57d795443fd4c Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 26 Mar 2023 13:00:32 +0100 Subject: [PATCH 040/557] cmake: Use recommended `add_compile_definitions` command Available in CMake 3.12+. --- CMakeLists.txt | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 92ecf31759..92ec611f6e 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -41,27 +41,27 @@ option(SECP256K1_INSTALL "Enable installation" ON) option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) if(SECP256K1_ENABLE_MODULE_ECDH) - add_definitions(-DENABLE_MODULE_ECDH=1) + add_compile_definitions(ENABLE_MODULE_ECDH=1) endif() option(SECP256K1_ENABLE_MODULE_RECOVERY "Enable ECDSA pubkey recovery module." OFF) if(SECP256K1_ENABLE_MODULE_RECOVERY) - add_definitions(-DENABLE_MODULE_RECOVERY=1) + add_compile_definitions(ENABLE_MODULE_RECOVERY=1) endif() option(SECP256K1_ENABLE_MODULE_EXTRAKEYS "Enable extrakeys module." ON) option(SECP256K1_ENABLE_MODULE_SCHNORRSIG "Enable schnorrsig module." ON) if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON) - add_definitions(-DENABLE_MODULE_SCHNORRSIG=1) + add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1) endif() if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) - add_definitions(-DENABLE_MODULE_EXTRAKEYS=1) + add_compile_definitions(ENABLE_MODULE_EXTRAKEYS=1) endif() option(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS "Enable external default callback functions." OFF) if(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS) - add_definitions(-DUSE_EXTERNAL_DEFAULT_CALLBACKS=1) + add_compile_definitions(USE_EXTERNAL_DEFAULT_CALLBACKS=1) endif() set(SECP256K1_ECMULT_WINDOW_SIZE "AUTO" CACHE STRING "Window size for ecmult precomputation for verification, specified as integer in range [2..24]. \"AUTO\" is a reasonable setting for desktop machines (currently 15). [default=AUTO]") @@ -71,7 +71,7 @@ check_string_option_value(SECP256K1_ECMULT_WINDOW_SIZE) if(SECP256K1_ECMULT_WINDOW_SIZE STREQUAL "AUTO") set(SECP256K1_ECMULT_WINDOW_SIZE 15) endif() -add_definitions(-DECMULT_WINDOW_SIZE=${SECP256K1_ECMULT_WINDOW_SIZE}) +add_compile_definitions(ECMULT_WINDOW_SIZE=${SECP256K1_ECMULT_WINDOW_SIZE}) set(SECP256K1_ECMULT_GEN_PREC_BITS "AUTO" CACHE STRING "Precision bits to tune the precomputed table size for signing, specified as integer 2, 4 or 8. \"AUTO\" is a reasonable setting for desktop machines (currently 4). [default=AUTO]") set_property(CACHE SECP256K1_ECMULT_GEN_PREC_BITS PROPERTY STRINGS "AUTO" 2 4 8) @@ -79,14 +79,14 @@ check_string_option_value(SECP256K1_ECMULT_GEN_PREC_BITS) if(SECP256K1_ECMULT_GEN_PREC_BITS STREQUAL "AUTO") set(SECP256K1_ECMULT_GEN_PREC_BITS 4) endif() -add_definitions(-DECMULT_GEN_PREC_BITS=${SECP256K1_ECMULT_GEN_PREC_BITS}) +add_compile_definitions(ECMULT_GEN_PREC_BITS=${SECP256K1_ECMULT_GEN_PREC_BITS}) set(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY "OFF" CACHE STRING "Test-only override of the (autodetected by the C code) \"widemul\" setting. Legal values are: \"OFF\", \"int128_struct\", \"int128\" or \"int64\". [default=OFF]") set_property(CACHE SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY PROPERTY STRINGS "OFF" "int128_struct" "int128" "int64") check_string_option_value(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) if(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) string(TOUPPER "${SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY}" widemul_upper_value) - add_definitions(-DUSE_FORCE_WIDEMUL_${widemul_upper_value}=1) + add_compile_definitions(USE_FORCE_WIDEMUL_${widemul_upper_value}=1) endif() mark_as_advanced(FORCE SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) @@ -95,13 +95,13 @@ set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm") check_string_option_value(SECP256K1_ASM) if(SECP256K1_ASM STREQUAL "arm") enable_language(ASM) - add_definitions(-DUSE_EXTERNAL_ASM=1) + add_compile_definitions(USE_EXTERNAL_ASM=1) elseif(SECP256K1_ASM) include(Check64bitAssembly) check_64bit_assembly() if(HAS_64BIT_ASM) set(SECP256K1_ASM "x86_64") - add_definitions(-DUSE_ASM_X86_64=1) + add_compile_definitions(USE_ASM_X86_64=1) elseif(SECP256K1_ASM STREQUAL "AUTO") set(SECP256K1_ASM "OFF") else() @@ -124,7 +124,7 @@ if(SECP256K1_VALGRIND) if(Valgrind_FOUND) set(SECP256K1_VALGRIND ON) include_directories(${Valgrind_INCLUDE_DIR}) - add_definitions(-DVALGRIND) + add_compile_definitions(VALGRIND) elseif(SECP256K1_VALGRIND STREQUAL "AUTO") set(SECP256K1_VALGRIND OFF) else() From 9f8703ef17db0144b320714cd56c1fe0317a5786 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 26 Mar 2023 13:00:52 +0100 Subject: [PATCH 041/557] cmake: Use dedicated `CMAKE_HOST_APPLE` variable --- cmake/FindValgrind.cmake | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cmake/FindValgrind.cmake b/cmake/FindValgrind.cmake index f6c1f58649..3af5e691e4 100644 --- a/cmake/FindValgrind.cmake +++ b/cmake/FindValgrind.cmake @@ -1,4 +1,4 @@ -if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin") +if(CMAKE_HOST_APPLE) find_program(BREW_COMMAND brew) execute_process( COMMAND ${BREW_COMMAND} --prefix valgrind From 2445808c0203215e7182355762944ab909d423d2 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 26 Mar 2023 13:15:34 +0100 Subject: [PATCH 042/557] cmake: Use dedicated `GENERATOR_IS_MULTI_CONFIG` property Available in CMake 3.9+. --- CMakeLists.txt | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 92ec611f6e..5308ee257c 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -171,21 +171,24 @@ mark_as_advanced( CMAKE_SHARED_LINKER_FLAGS_COVERAGE ) -if(CMAKE_CONFIGURATION_TYPES) - set(CMAKE_CONFIGURATION_TYPES "RelWithDebInfo" "Release" "Debug" "MinSizeRel" "Coverage") -endif() - -get_property(cached_cmake_build_type CACHE CMAKE_BUILD_TYPE PROPERTY TYPE) -if(cached_cmake_build_type) +get_property(is_multi_config GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG) +set(default_build_type "RelWithDebInfo") +if(is_multi_config) + set(CMAKE_CONFIGURATION_TYPES "${default_build_type}" "Release" "Debug" "MinSizeRel" "Coverage" CACHE STRING + "Supported configuration types." + FORCE + ) +else() set_property(CACHE CMAKE_BUILD_TYPE PROPERTY - STRINGS "RelWithDebInfo" "Release" "Debug" "MinSizeRel" "Coverage" + STRINGS "${default_build_type}" "Release" "Debug" "MinSizeRel" "Coverage" ) -endif() - -set(default_build_type "RelWithDebInfo") -if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES) - message(STATUS "Setting build type to \"${default_build_type}\" as none was specified") - set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING "Choose the type of build." FORCE) + if(NOT CMAKE_BUILD_TYPE) + message(STATUS "Setting build type to \"${default_build_type}\" as none was specified") + set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING + "Choose the type of build." + FORCE + ) + endif() endif() include(TryAddCompileOption) @@ -279,7 +282,7 @@ message("CFLAGS ................................ ${CMAKE_C_FLAGS}") get_directory_property(compile_options COMPILE_OPTIONS) string(REPLACE ";" " " compile_options "${compile_options}") message("Compile options ....................... " ${compile_options}) -if(DEFINED CMAKE_BUILD_TYPE) +if(NOT is_multi_config) message("Build type:") message(" - CMAKE_BUILD_TYPE ................... ${CMAKE_BUILD_TYPE}") string(TOUPPER "${CMAKE_BUILD_TYPE}" build_type) @@ -287,7 +290,7 @@ if(DEFINED CMAKE_BUILD_TYPE) message(" - LDFLAGS for executables ............ ${CMAKE_EXE_LINKER_FLAGS_${build_type}}") message(" - LDFLAGS for shared libraries ....... ${CMAKE_SHARED_LINKER_FLAGS_${build_type}}") else() - message("Available configurations .............. ${CMAKE_CONFIGURATION_TYPES}") + message("Supported configurations .............. ${CMAKE_CONFIGURATION_TYPES}") message("RelWithDebInfo configuration:") message(" - CFLAGS ............................. ${CMAKE_C_FLAGS_RELWITHDEBINFO}") message(" - LDFLAGS for executables ............ ${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}") From 6a58b483efb96de32134611963c16f6bf7e94d51 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 26 Mar 2023 20:08:12 +0100 Subject: [PATCH 043/557] cmake: Use `if(... IN_LIST ...)` command Available in CMake 3.3+. --- cmake/CheckStringOptionValue.cmake | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/cmake/CheckStringOptionValue.cmake b/cmake/CheckStringOptionValue.cmake index bc4d7b5749..5a4d939b9e 100644 --- a/cmake/CheckStringOptionValue.cmake +++ b/cmake/CheckStringOptionValue.cmake @@ -1,11 +1,9 @@ function(check_string_option_value option) get_property(expected_values CACHE ${option} PROPERTY STRINGS) if(expected_values) - foreach(value IN LISTS expected_values) - if(value STREQUAL "${${option}}") - return() - endif() - endforeach() + if(${option} IN_LIST expected_values) + return() + endif() message(FATAL_ERROR "${option} value is \"${${option}}\", but must be one of ${expected_values}.") endif() message(AUTHOR_WARNING "The STRINGS property must be set before invoking `check_string_option_value' function.") From a273d74b2ea1ef115a7e40fe89a64a6c744018c6 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 20 Apr 2023 17:03:42 +0100 Subject: [PATCH 044/557] cmake: Improve version comparison --- CMakeLists.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 5308ee257c..fe716c8bde 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,6 +1,6 @@ cmake_minimum_required(VERSION 3.13) -if(CMAKE_VERSION VERSION_GREATER 3.14) +if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.15) # MSVC runtime library flags are selected by the CMAKE_MSVC_RUNTIME_LIBRARY abstraction. cmake_policy(SET CMP0091 NEW) # MSVC warning flags are not in CMAKE__FLAGS by default. From 0a446a312fdd6260320eeed51697ecadf61ee11f Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 10 Mar 2023 10:51:26 +0100 Subject: [PATCH 045/557] cmake: Add dev-mode CMake preset To use, invoke `cmake` with argument `--preset dev-mode`. Solves one item in #1235. One disadvantage over `./configure --enable-dev-mode` is that CMake does not provide a way to "hide" presets from users. That is, `cmake --list-presets` will list dev-mode, and it will also appear in `cmake-gui`, even though it's not selectable there due to bug https://gitlab.kitware.com/cmake/cmake/-/issues/23341. (So in our case, that's probably rather a feature than a bug.) We curently use version 3 presets which require CMake 3.21+. Unfortunately, CMake versions before 3.19 may ignore the `--preset` argument silently. So if the preset is not picked up, make sure you have a recent enough CMake version. More unfortunately, we can't even spell this warning out in CMakePresets.json because CMake does not support officially support comments in JSON, see - https://gitlab.kitware.com/cmake/cmake/-/issues/21858 - https://gitlab.kitware.com/cmake/cmake/-/merge_requests/5853 . We could use a hack hinted at in https://gitlab.kitware.com/cmake/cmake/-/issues/21858#note_908543 but that's risky, because it could simply break for future versions, and we probably want to use presets not only for dev mode. --- CMakePresets.json | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 CMakePresets.json diff --git a/CMakePresets.json b/CMakePresets.json new file mode 100644 index 0000000000..b35cd80579 --- /dev/null +++ b/CMakePresets.json @@ -0,0 +1,19 @@ +{ + "cmakeMinimumRequired": {"major": 3, "minor": 21, "patch": 0}, + "version": 3, + "configurePresets": [ + { + "name": "dev-mode", + "displayName": "Development mode (intended only for developers of the library)", + "cacheVariables": { + "SECP256K1_EXPERIMENTAL": "ON", + "SECP256K1_ENABLE_MODULE_RECOVERY": "ON", + "SECP256K1_BUILD_EXAMPLES": "ON" + }, + "warnings": { + "dev": true, + "uninitialized": true + } + } + ] +} From ce5ba9e24dfcceb49ed7f83a87548fd8b3b0cab2 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 16 Mar 2023 22:58:24 +0900 Subject: [PATCH 046/557] gitignore: Add CMakeUserPresets.json This file is specifically intended for *local* CMake templates (as opposed to CMakePresets.json). --- .gitignore | 2 ++ 1 file changed, 2 insertions(+) diff --git a/.gitignore b/.gitignore index bc7e499de7..574902b8b5 100644 --- a/.gitignore +++ b/.gitignore @@ -59,5 +59,7 @@ build-aux/compile build-aux/test-driver libsecp256k1.pc +### CMake +/CMakeUserPresets.json # Default CMake build directory. /build From 69e1ec033120497b83dd95d92166fa05c54b8a06 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 20 Apr 2023 16:07:35 -0400 Subject: [PATCH 047/557] Get rid of secp256k1_fe_const_b --- src/group_impl.h | 2 -- src/tests.c | 2 +- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/src/group_impl.h b/src/group_impl.h index 7ec069a80c..29017dc965 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -73,8 +73,6 @@ static const secp256k1_ge secp256k1_ge_const_g = SECP256K1_G; #endif /* End of section generated by sage/gen_exhaustive_groups.sage. */ -static const secp256k1_fe secp256k1_fe_const_b = SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, SECP256K1_B); - static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi) { secp256k1_fe zi2; secp256k1_fe zi3; diff --git a/src/tests.c b/src/tests.c index 4c1946a5bd..9b3c92dd6e 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4498,7 +4498,7 @@ static void ecmult_const_mult_xonly(void) { random_field_element_test(&x); secp256k1_fe_sqr(&c, &x); secp256k1_fe_mul(&c, &c, &x); - secp256k1_fe_add(&c, &secp256k1_fe_const_b); + secp256k1_fe_add_int(&c, SECP256K1_B); } while (secp256k1_fe_is_square_var(&c)); /* If i is odd, n=d*x for random non-zero d. */ if (i & 1) { From 162608cc982538906e775d0c549aff2de5dee413 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 20 Apr 2023 23:12:28 +0100 Subject: [PATCH 048/557] cmake: Emulate `PROJECT_IS_TOP_LEVEL` for CMake<3.21 --- CMakeLists.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 91d2bed02c..0c8f049ae5 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -12,6 +12,18 @@ endif() # backwards-compatible and therefore at most increase the minor version. project(libsecp256k1 VERSION 0.3.2 LANGUAGES C) +if(CMAKE_VERSION VERSION_LESS 3.21) + get_directory_property(parent_directory PARENT_DIRECTORY) + if(parent_directory) + set(PROJECT_IS_TOP_LEVEL OFF CACHE INTERNAL "Emulates CMake 3.21+ behavior.") + set(${PROJECT_NAME}_IS_TOP_LEVEL OFF CACHE INTERNAL "Emulates CMake 3.21+ behavior.") + else() + set(PROJECT_IS_TOP_LEVEL ON CACHE INTERNAL "Emulates CMake 3.21+ behavior.") + set(${PROJECT_NAME}_IS_TOP_LEVEL ON CACHE INTERNAL "Emulates CMake 3.21+ behavior.") + endif() + unset(parent_directory) +endif() + # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html From 68b16a1662af2db801a87d6f1afedca93ec2501c Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 21 Apr 2023 11:18:36 +0200 Subject: [PATCH 049/557] bench: Make sys/time.h a system include --- src/bench.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/bench.h b/src/bench.h index bf9a932ff4..1564b1a176 100644 --- a/src/bench.h +++ b/src/bench.h @@ -15,7 +15,7 @@ #if (defined(_MSC_VER) && _MSC_VER >= 1900) # include #else -# include "sys/time.h" +# include #endif static int64_t gettime_i64(void) { From 5431b9decdbbdf30c5c5f2aed4b59662f5c681a2 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 21 Apr 2023 12:03:04 +0100 Subject: [PATCH 050/557] cmake: Make `SECP256K1_INSTALL` default depend on `PROJECT_IS_TOP_LEVEL` Also full stops have been added to the option help texts for consistency in cmake-gui. --- CMakeLists.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 0c8f049ae5..0b588ac98b 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -38,13 +38,13 @@ set(CMAKE_C_EXTENSIONS OFF) list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) -option(BUILD_SHARED_LIBS "Build shared libraries" ON) +option(BUILD_SHARED_LIBS "Build shared libraries." ON) option(SECP256K1_DISABLE_SHARED "Disable shared library. Overrides BUILD_SHARED_LIBS." OFF) if(SECP256K1_DISABLE_SHARED) set(BUILD_SHARED_LIBS OFF) endif() -option(SECP256K1_INSTALL "Enable installation" ON) +option(SECP256K1_INSTALL "Enable installation." ${PROJECT_IS_TOP_LEVEL}) option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) if(SECP256K1_ENABLE_MODULE_ECDH) From e9fd3dff76e30fcd83d060ad9195cadae9cdc9a2 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 1 Feb 2023 12:26:57 +0100 Subject: [PATCH 051/557] field: Improve docs and tests of secp256k1_fe_set_b32 --- src/field.h | 4 +++- src/tests.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 67 insertions(+), 1 deletion(-) diff --git a/src/field.h b/src/field.h index 4b57548bea..d02a4d9bed 100644 --- a/src/field.h +++ b/src/field.h @@ -75,7 +75,9 @@ static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b); /** Compare two field elements. Requires both inputs to be normalized */ static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); -/** Set a field element equal to 32-byte big endian value. If successful, the resulting field element is normalized. */ +/** Set a field element equal to 32-byte big endian value. + * Returns 1 if no overflow occurred, and then the output is normalized. + * Returns 0 if overflow occurred, and then the output is only weakly normalized. */ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a); /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */ diff --git a/src/tests.c b/src/tests.c index bc5b7cb1f1..154e700b0f 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2961,6 +2961,69 @@ static void run_field_convert(void) { CHECK(secp256k1_memcmp_var(&fes2, &fes, sizeof(fes)) == 0); } +static void run_field_be32_overflow(void) { + { + static const unsigned char zero_overflow[32] = { + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFC, 0x2F, + }; + static const unsigned char zero[32] = { 0x00 }; + unsigned char out[32]; + secp256k1_fe fe; + CHECK(secp256k1_fe_set_b32(&fe, zero_overflow) == 0); + CHECK(secp256k1_fe_normalizes_to_zero(&fe) == 1); + secp256k1_fe_normalize(&fe); + CHECK(secp256k1_fe_is_zero(&fe) == 1); + secp256k1_fe_get_b32(out, &fe); + CHECK(secp256k1_memcmp_var(out, zero, 32) == 0); + } + { + static const unsigned char one_overflow[32] = { + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFC, 0x30, + }; + static const unsigned char one[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, + }; + unsigned char out[32]; + secp256k1_fe fe; + CHECK(secp256k1_fe_set_b32(&fe, one_overflow) == 0); + secp256k1_fe_normalize(&fe); + CHECK(secp256k1_fe_cmp_var(&fe, &secp256k1_fe_one) == 0); + secp256k1_fe_get_b32(out, &fe); + CHECK(secp256k1_memcmp_var(out, one, 32) == 0); + } + { + static const unsigned char ff_overflow[32] = { + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + }; + static const unsigned char ff[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x03, 0xD0, + }; + unsigned char out[32]; + secp256k1_fe fe; + const secp256k1_fe fe_ff = SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0x01, 0x000003d0); + CHECK(secp256k1_fe_set_b32(&fe, ff_overflow) == 0); + secp256k1_fe_normalize(&fe); + CHECK(secp256k1_fe_cmp_var(&fe, &fe_ff) == 0); + secp256k1_fe_get_b32(out, &fe); + CHECK(secp256k1_memcmp_var(out, ff, 32) == 0); + } +} + /* Returns true if two field elements have the same representation. */ static int fe_identical(const secp256k1_fe *a, const secp256k1_fe *b) { int ret = 1; @@ -7515,6 +7578,7 @@ int main(int argc, char **argv) { run_field_half(); run_field_misc(); run_field_convert(); + run_field_be32_overflow(); run_fe_mul(); run_sqr(); run_sqrt(); From 162da73e9a48875aab1ee6ca1c14f86ca4646946 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 1 Feb 2023 14:30:00 +0100 Subject: [PATCH 052/557] tests: Add debug helper for printing buffers --- src/tests.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/src/tests.c b/src/tests.c index 154e700b0f..ce991e1640 100644 --- a/src/tests.c +++ b/src/tests.c @@ -44,6 +44,25 @@ static int all_bytes_equal(const void* s, unsigned char value, size_t n) { return 1; } +/* Debug helper for printing arrays of unsigned char. */ +#define PRINT_BUF(buf, len) do { \ + printf("%s[%lu] = ", #buf, (unsigned long)len); \ + print_buf_plain(buf, len); \ +} while(0); +static void print_buf_plain(const unsigned char *buf, size_t len) { + size_t i; + printf("{"); + for (i = 0; i < len; i++) { + if (i % 8 == 0) { + printf("\n "); + } else { + printf(" "); + } + printf("0x%02X,", buf[i]); + } + printf("\n}\n"); +} + /* TODO Use CHECK_ILLEGAL(_VOID) everywhere and get rid of the uncounting callback */ /* CHECK that expr_or_stmt calls the illegal callback of ctx exactly once * From 3858bad2c6493aa66cbfa62540d89da9c5a16040 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 21 Apr 2023 20:21:28 +0000 Subject: [PATCH 053/557] tests: remove extra semicolon in macro --- src/tests.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/tests.c b/src/tests.c index 0f9c35faf2..24355039b3 100644 --- a/src/tests.c +++ b/src/tests.c @@ -48,7 +48,8 @@ static int all_bytes_equal(const void* s, unsigned char value, size_t n) { #define PRINT_BUF(buf, len) do { \ printf("%s[%lu] = ", #buf, (unsigned long)len); \ print_buf_plain(buf, len); \ -} while(0); +} while(0) + static void print_buf_plain(const unsigned char *buf, size_t len) { size_t i; printf("{"); From e1b9ce881159e8e2572467f1426f200e987a4d44 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 14 Apr 2023 07:37:10 +0200 Subject: [PATCH 054/557] autotools: Use same conventions for all pregenerated files --- Makefile.am | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/Makefile.am b/Makefile.am index 20024e474e..f745013c93 100644 --- a/Makefile.am +++ b/Makefile.am @@ -203,7 +203,7 @@ precompute_ecmult_gen_LDADD = $(COMMON_LIB) # otherwise make's decision whether to rebuild them (even in the first # build by a normal user) depends on mtimes, and thus is very fragile. # This means that rebuilds of the prebuilt files always need to be -# forced by deleting them, e.g., by invoking `make clean-precomp`. +# forced by deleting them. src/precomputed_ecmult.c: $(MAKE) $(AM_MAKEFLAGS) precompute_ecmult$(EXEEXT) ./precompute_ecmult$(EXEEXT) @@ -224,6 +224,7 @@ clean-precomp: rm -f $(PRECOMP) ### Pregenerated test vectors +### (see the comments in the previous section for detailed rationale) TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: @@ -231,7 +232,9 @@ src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: testvectors: $(TESTVECTORS) -maintainer-clean-testvectors: clean-testvectors +BUILT_SOURCES += $(TESTVECTORS) + +maintainer-clean-local: clean-testvectors clean-testvectors: rm -f $(TESTVECTORS) From 8764034ed55bffc8a26fbe377ac505359f8828e9 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 14 Apr 2023 07:45:49 +0200 Subject: [PATCH 055/557] autotools: Make all "pregenerated" targets .PHONY This follows the automake conventions more, see: https://www.gnu.org/software/automake/manual/html_node/Clean.html --- Makefile.am | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/Makefile.am b/Makefile.am index f745013c93..6e2aa7fe01 100644 --- a/Makefile.am +++ b/Makefile.am @@ -1,5 +1,3 @@ -.PHONY: clean-precomp precomp - ACLOCAL_AMFLAGS = -I build-aux/m4 # AM_CFLAGS will be automatically prepended to CFLAGS by Automake when compiling some foo @@ -218,10 +216,10 @@ precomp: $(PRECOMP) # e.g., after `make maintainer-clean`). BUILT_SOURCES = $(PRECOMP) -maintainer-clean-local: clean-precomp - +.PHONY: clean-precomp clean-precomp: rm -f $(PRECOMP) +maintainer-clean-local: clean-precomp ### Pregenerated test vectors ### (see the comments in the previous section for detailed rationale) @@ -234,10 +232,10 @@ testvectors: $(TESTVECTORS) BUILT_SOURCES += $(TESTVECTORS) -maintainer-clean-local: clean-testvectors - +.PHONY: clean-testvectors clean-testvectors: rm -f $(TESTVECTORS) +maintainer-clean-local: clean-testvectors ### Additional files to distribute EXTRA_DIST = autogen.sh CHANGELOG.md SECURITY.md From 2418d3260ac51ba0f148fb20e19c8f41bba8a135 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 14 Apr 2023 07:54:24 +0200 Subject: [PATCH 056/557] autotools: Create src/wycheproof dir before creating file in it This directory may not exist in a VPATH build, see https://github.com/bitcoin/bitcoin/pull/27445#issuecomment-1502994264 . --- Makefile.am | 1 + 1 file changed, 1 insertion(+) diff --git a/Makefile.am b/Makefile.am index 6e2aa7fe01..047b2f2178 100644 --- a/Makefile.am +++ b/Makefile.am @@ -226,6 +226,7 @@ maintainer-clean-local: clean-precomp TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: + mkdir -p $(@D) python3 tools/tests_wycheproof_generate.py src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ testvectors: $(TESTVECTORS) From 7e977b3c5071fc17575ff88ebbc9db7b17c70497 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 25 Apr 2023 11:44:25 +0100 Subject: [PATCH 057/557] autotools: Take VPATH builds into account when generating testvectors --- Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile.am b/Makefile.am index 047b2f2178..29b8a69cfb 100644 --- a/Makefile.am +++ b/Makefile.am @@ -227,7 +227,7 @@ TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: mkdir -p $(@D) - python3 tools/tests_wycheproof_generate.py src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ + python3 $(top_srcdir)/tools/tests_wycheproof_generate.py $(top_srcdir)/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ testvectors: $(TESTVECTORS) From c4062d6b5d83572c1932f32003a7c0e901fffc23 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 25 Apr 2023 16:07:10 +0000 Subject: [PATCH 058/557] debug: move helper for printing buffers into util.h --- src/tests.c | 20 -------------------- src/util.h | 20 ++++++++++++++++++++ 2 files changed, 20 insertions(+), 20 deletions(-) diff --git a/src/tests.c b/src/tests.c index 24355039b3..6d46b39d74 100644 --- a/src/tests.c +++ b/src/tests.c @@ -44,26 +44,6 @@ static int all_bytes_equal(const void* s, unsigned char value, size_t n) { return 1; } -/* Debug helper for printing arrays of unsigned char. */ -#define PRINT_BUF(buf, len) do { \ - printf("%s[%lu] = ", #buf, (unsigned long)len); \ - print_buf_plain(buf, len); \ -} while(0) - -static void print_buf_plain(const unsigned char *buf, size_t len) { - size_t i; - printf("{"); - for (i = 0; i < len; i++) { - if (i % 8 == 0) { - printf("\n "); - } else { - printf(" "); - } - printf("0x%02X,", buf[i]); - } - printf("\n}\n"); -} - /* TODO Use CHECK_ILLEGAL(_VOID) everywhere and get rid of the uncounting callback */ /* CHECK that expr_or_stmt calls the illegal callback of ctx exactly once * diff --git a/src/util.h b/src/util.h index f980f47bdc..0e3faf0234 100644 --- a/src/util.h +++ b/src/util.h @@ -19,6 +19,26 @@ #define DEBUG_CONFIG_MSG(x) "DEBUG_CONFIG: " x #define DEBUG_CONFIG_DEF(x) DEBUG_CONFIG_MSG(#x "=" STR(x)) +/* Debug helper for printing arrays of unsigned char. */ +#define PRINT_BUF(buf, len) do { \ + printf("%s[%lu] = ", #buf, (unsigned long)len); \ + print_buf_plain(buf, len); \ +} while(0) + +static void print_buf_plain(const unsigned char *buf, size_t len) { + size_t i; + printf("{"); + for (i = 0; i < len; i++) { + if (i % 8 == 0) { + printf("\n "); + } else { + printf(" "); + } + printf("0x%02X,", buf[i]); + } + printf("\n}\n"); +} + # if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) ) # if SECP256K1_GNUC_PREREQ(2,7) # define SECP256K1_INLINE __inline__ From 42f8c5140227dbdd8ae7eaaecd914e705e1b12d0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 26 Apr 2023 11:10:03 +0100 Subject: [PATCH 059/557] cmake: Add `SECP256K1_LATE_CFLAGS` configure option --- CMakeLists.txt | 8 ++++++++ cmake/AllTargetsCompileOptions.cmake | 12 ++++++++++++ 2 files changed, 20 insertions(+) create mode 100644 cmake/AllTargetsCompileOptions.cmake diff --git a/CMakeLists.txt b/CMakeLists.txt index 91d2bed02c..4e413a663a 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -217,9 +217,14 @@ if(SECP256K1_BUILD_BENCHMARK OR SECP256K1_BUILD_TESTS OR SECP256K1_BUILD_EXHAUST enable_testing() endif() +set(SECP256K1_LATE_CFLAGS "" CACHE STRING "Compiler flags that are added to the command line after all other flags added by the build system.") +include(AllTargetsCompileOptions) + add_subdirectory(src) +all_targets_compile_options(src "${SECP256K1_LATE_CFLAGS}") if(SECP256K1_BUILD_EXAMPLES) add_subdirectory(examples) + all_targets_compile_options(examples "${SECP256K1_LATE_CFLAGS}") endif() message("\n") @@ -292,6 +297,9 @@ else() message(" - LDFLAGS for executables ............ ${CMAKE_EXE_LINKER_FLAGS_DEBUG}") message(" - LDFLAGS for shared libraries ....... ${CMAKE_SHARED_LINKER_FLAGS_DEBUG}") endif() +if(SECP256K1_LATE_CFLAGS) + message("SECP256K1_LATE_CFLAGS ................. ${SECP256K1_LATE_CFLAGS}") +endif() message("\n") if(SECP256K1_EXPERIMENTAL) message( diff --git a/cmake/AllTargetsCompileOptions.cmake b/cmake/AllTargetsCompileOptions.cmake new file mode 100644 index 0000000000..6e420e0fde --- /dev/null +++ b/cmake/AllTargetsCompileOptions.cmake @@ -0,0 +1,12 @@ +# Add compile options to all targets added in the subdirectory. +function(all_targets_compile_options dir options) + get_directory_property(targets DIRECTORY ${dir} BUILDSYSTEM_TARGETS) + separate_arguments(options) + set(compiled_target_types STATIC_LIBRARY SHARED_LIBRARY OBJECT_LIBRARY EXECUTABLE) + foreach(target ${targets}) + get_target_property(type ${target} TYPE) + if(type IN_LIST compiled_target_types) + target_compile_options(${target} PRIVATE ${options}) + endif() + endforeach() +endfunction() From 19516ed3e9efe43b00d75820fb6590dcbed548b3 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 27 Apr 2023 14:39:10 +0100 Subject: [PATCH 060/557] cmake: Use `add_compile_options()` in `try_add_compile_option()` This change drops tinkering with the `COMPILE_OPTIONS` directory property. Also `try_add_compile_option()` can handle a list of flags now, if they are required to be checked simultaneously. An explanatory comments have been added as well. --- cmake/TryAddCompileOption.cmake | 35 +++++++++++++++++---------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/cmake/TryAddCompileOption.cmake b/cmake/TryAddCompileOption.cmake index f53c252c2d..9a99e4f2ee 100644 --- a/cmake/TryAddCompileOption.cmake +++ b/cmake/TryAddCompileOption.cmake @@ -1,23 +1,24 @@ include(CheckCCompilerFlag) -function(try_add_compile_option option) - string(MAKE_C_IDENTIFIER ${option} result) - string(TOUPPER ${result} result) - set(result "C_SUPPORTS${result}") - set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) +function(secp256k1_check_c_flags_internal flags output) + string(MAKE_C_IDENTIFIER "${flags}" result) + string(TOUPPER "${result}" result) + set(result "C_SUPPORTS_${result}") if(NOT MSVC) set(CMAKE_REQUIRED_FLAGS "-Werror") endif() - check_c_compiler_flag(${option} ${result}) - if(${result}) - get_property(compile_options - DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" - PROPERTY COMPILE_OPTIONS - ) - list(APPEND compile_options "${option}") - set_property( - DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" - PROPERTY COMPILE_OPTIONS "${compile_options}" - ) - endif() + + # This avoids running a linker. + set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) + check_c_compiler_flag("${flags}" ${result}) + + set(${output} ${${result}} PARENT_SCOPE) endfunction() + +# Append flags to the COMPILE_OPTIONS directory property if CC accepts them. +macro(try_add_compile_option) + secp256k1_check_c_flags_internal("${ARGV}" result) + if(result) + add_compile_options(${ARGV}) + endif() +endmacro() From 6ece1507cb11a897a98052f34a374ec00e83cb86 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 22 Mar 2023 10:35:49 +0000 Subject: [PATCH 061/557] cmake, refactor: Rename `try_add_compile_option` to `try_append_cflags` Actually, `try_append_cflags()` can handle a list of flags, and the new name is similar to the one used in `configure.ac`. --- CMakeLists.txt | 34 +++++++++---------- ...pileOption.cmake => TryAppendCFlags.cmake} | 2 +- 2 files changed, 18 insertions(+), 18 deletions(-) rename cmake/{TryAddCompileOption.cmake => TryAppendCFlags.cmake} (95%) diff --git a/CMakeLists.txt b/CMakeLists.txt index fe716c8bde..ac18cf83e6 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -191,25 +191,25 @@ else() endif() endif() -include(TryAddCompileOption) +include(TryAppendCFlags) if(MSVC) - try_add_compile_option(/W2) - try_add_compile_option(/wd4146) + try_append_c_flags(/W2) + try_append_c_flags(/wd4146) else() - try_add_compile_option(-pedantic) - try_add_compile_option(-Wall) - try_add_compile_option(-Wcast-align) - try_add_compile_option(-Wcast-align=strict) - try_add_compile_option(-Wconditional-uninitialized) - try_add_compile_option(-Wextra) - try_add_compile_option(-Wnested-externs) - try_add_compile_option(-Wno-long-long) - try_add_compile_option(-Wno-overlength-strings) - try_add_compile_option(-Wno-unused-function) - try_add_compile_option(-Wreserved-identifier) - try_add_compile_option(-Wshadow) - try_add_compile_option(-Wstrict-prototypes) - try_add_compile_option(-Wundef) + try_append_c_flags(-pedantic) + try_append_c_flags(-Wall) + try_append_c_flags(-Wcast-align) + try_append_c_flags(-Wcast-align=strict) + try_append_c_flags(-Wconditional-uninitialized) + try_append_c_flags(-Wextra) + try_append_c_flags(-Wnested-externs) + try_append_c_flags(-Wno-long-long) + try_append_c_flags(-Wno-overlength-strings) + try_append_c_flags(-Wno-unused-function) + try_append_c_flags(-Wreserved-identifier) + try_append_c_flags(-Wshadow) + try_append_c_flags(-Wstrict-prototypes) + try_append_c_flags(-Wundef) endif() set(CMAKE_C_VISIBILITY_PRESET hidden) diff --git a/cmake/TryAddCompileOption.cmake b/cmake/TryAppendCFlags.cmake similarity index 95% rename from cmake/TryAddCompileOption.cmake rename to cmake/TryAppendCFlags.cmake index 9a99e4f2ee..1d81a9317a 100644 --- a/cmake/TryAddCompileOption.cmake +++ b/cmake/TryAppendCFlags.cmake @@ -16,7 +16,7 @@ function(secp256k1_check_c_flags_internal flags output) endfunction() # Append flags to the COMPILE_OPTIONS directory property if CC accepts them. -macro(try_add_compile_option) +macro(try_append_c_flags) secp256k1_check_c_flags_internal("${ARGV}" result) if(result) add_compile_options(${ARGV}) From a8d059f76cb3429381adda1193c3d1976ba3cab4 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 22 Mar 2023 10:37:16 +0000 Subject: [PATCH 062/557] cmake, doc: Document compiler flags --- CMakeLists.txt | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index ac18cf83e6..86ffd931ad 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -193,20 +193,22 @@ endif() include(TryAppendCFlags) if(MSVC) - try_append_c_flags(/W2) - try_append_c_flags(/wd4146) + # Keep the following commands ordered lexicographically. + try_append_c_flags(/W2) # Moderate warning level. + try_append_c_flags(/wd4146) # Disable warning C4146 "unary minus operator applied to unsigned type, result still unsigned". else() + # Keep the following commands ordered lexicographically. try_append_c_flags(-pedantic) - try_append_c_flags(-Wall) - try_append_c_flags(-Wcast-align) - try_append_c_flags(-Wcast-align=strict) - try_append_c_flags(-Wconditional-uninitialized) - try_append_c_flags(-Wextra) + try_append_c_flags(-Wall) # GCC >= 2.95 and probably many other compilers. + try_append_c_flags(-Wcast-align) # GCC >= 2.95. + try_append_c_flags(-Wcast-align=strict) # GCC >= 8.0. + try_append_c_flags(-Wconditional-uninitialized) # Clang >= 3.0 only. + try_append_c_flags(-Wextra) # GCC >= 3.4, this is the newer name of -W, which we don't use because older GCCs will warn about unused functions. try_append_c_flags(-Wnested-externs) - try_append_c_flags(-Wno-long-long) - try_append_c_flags(-Wno-overlength-strings) - try_append_c_flags(-Wno-unused-function) - try_append_c_flags(-Wreserved-identifier) + try_append_c_flags(-Wno-long-long) # GCC >= 3.0, -Wlong-long is implied by -pedantic. + try_append_c_flags(-Wno-overlength-strings) # GCC >= 4.2, -Woverlength-strings is implied by -pedantic. + try_append_c_flags(-Wno-unused-function) # GCC >= 3.0, -Wunused-function is implied by -Wall. + try_append_c_flags(-Wreserved-identifier) # Clang >= 13.0 only. try_append_c_flags(-Wshadow) try_append_c_flags(-Wstrict-prototypes) try_append_c_flags(-Wundef) From 71f746c057a66d5ae0dfdb5d439bc49592c0d16e Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 21 Apr 2023 12:03:26 +0100 Subject: [PATCH 063/557] cmake: Include `include` directory for subtree builds --- src/CMakeLists.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index cd1d6f00ee..720377c8ea 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -31,7 +31,9 @@ endif() get_target_property(use_pic secp256k1 POSITION_INDEPENDENT_CODE) set_target_properties(secp256k1_precomputed PROPERTIES POSITION_INDEPENDENT_CODE ${use_pic}) -target_include_directories(secp256k1 PUBLIC +target_include_directories(secp256k1 INTERFACE + # Add the include path for parent projects so that they don't have to manually add it. + $>:${PROJECT_SOURCE_DIR}/include>> $ ) set_target_properties(secp256k1 PROPERTIES From bef448f9af248dba016883401de07b431f3e686e Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 28 Apr 2023 20:59:53 +0100 Subject: [PATCH 064/557] cmake: Fix library ABI versioning This change emulates Libtool to make sure Libtool and CMake agree on the ABI version. --- src/CMakeLists.txt | 38 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 2 deletions(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index cd1d6f00ee..e97ca214c5 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -34,10 +34,44 @@ set_target_properties(secp256k1_precomputed PROPERTIES POSITION_INDEPENDENT_CODE target_include_directories(secp256k1 PUBLIC $ ) + +# This emulates Libtool to make sure Libtool and CMake agree on the ABI version, +# see below "Calculate the version variables" in build-aux/ltmain.sh. +math(EXPR ${PROJECT_NAME}_soversion "${${PROJECT_NAME}_LIB_VERSION_CURRENT} - ${${PROJECT_NAME}_LIB_VERSION_AGE}") set_target_properties(secp256k1 PROPERTIES - VERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION}" - SOVERSION "${${PROJECT_NAME}_LIB_VERSION_CURRENT}" + SOVERSION ${${PROJECT_NAME}_soversion} ) +if(CMAKE_SYSTEM_NAME STREQUAL "Linux") + set_target_properties(secp256k1 PROPERTIES + VERSION ${${PROJECT_NAME}_soversion}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION} + ) +elseif(APPLE) + if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.17) + math(EXPR ${PROJECT_NAME}_compatibility_version "${${PROJECT_NAME}_LIB_VERSION_CURRENT} + 1") + set_target_properties(secp256k1 PROPERTIES + MACHO_COMPATIBILITY_VERSION ${${PROJECT_NAME}_compatibility_version} + MACHO_CURRENT_VERSION ${${PROJECT_NAME}_compatibility_version}.${${PROJECT_NAME}_LIB_VERSION_REVISION} + ) + unset(${PROJECT_NAME}_compatibility_version) + elseif(BUILD_SHARED_LIBS) + message(WARNING + "The 'compatibility version' and 'current version' values of the DYLIB " + "will diverge from the values set by the GNU Libtool. To ensure " + "compatibility, it is recommended to upgrade CMake to at least version 3.17." + ) + endif() +elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows") + set(${PROJECT_NAME}_windows "secp256k1") + if(MSVC) + set(${PROJECT_NAME}_windows "${PROJECT_NAME}") + endif() + set_target_properties(secp256k1 PROPERTIES + ARCHIVE_OUTPUT_NAME "${${PROJECT_NAME}_windows}" + RUNTIME_OUTPUT_NAME "${${PROJECT_NAME}_windows}-${${PROJECT_NAME}_soversion}" + ) + unset(${PROJECT_NAME}_windows) +endif() +unset(${PROJECT_NAME}_soversion) if(SECP256K1_BUILD_BENCHMARK) add_executable(bench bench.c) From 755629bc032af155ff68fa820244d04cb80547c5 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 29 Apr 2023 09:49:25 +0100 Subject: [PATCH 065/557] cmake: Use full signature of `add_test()` command An executable target in the `COMMAND` option will automatically be replaced by the location of the executable created at build time. This change fixes tests for Windows binaries using Wine. --- .cirrus.yml | 2 +- examples/CMakeLists.txt | 6 +++--- src/CMakeLists.txt | 6 +++--- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 0b904a4e38..592500371b 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -403,7 +403,7 @@ task: - cmake --build build --config RelWithDebInfo -- -property:UseMultiToolTask=true;CL_MPcount=5 check_script: - '%x64_NATIVE_TOOLS%' - - ctest --test-dir build -j 5 + - ctest -C RelWithDebInfo --test-dir build -j 5 - build\src\RelWithDebInfo\bench_ecmult.exe - build\src\RelWithDebInfo\bench_internal.exe - build\src\RelWithDebInfo\bench.exe diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index 8120f496fa..e095b7f84f 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -12,16 +12,16 @@ endif() add_executable(ecdsa_example ecdsa.c) target_link_libraries(ecdsa_example example) -add_test(ecdsa_example ecdsa_example) +add_test(NAME ecdsa_example COMMAND ecdsa_example) if(SECP256K1_ENABLE_MODULE_ECDH) add_executable(ecdh_example ecdh.c) target_link_libraries(ecdh_example example) - add_test(ecdh_example ecdh_example) + add_test(NAME ecdh_example COMMAND ecdh_example) endif() if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) add_executable(schnorr_example schnorr.c) target_link_libraries(schnorr_example example) - add_test(schnorr_example schnorr_example) + add_test(NAME schnorr_example COMMAND schnorr_example) endif() diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 01c5f3a8dc..9d69c90401 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -53,12 +53,12 @@ endif() if(SECP256K1_BUILD_TESTS) add_executable(noverify_tests tests.c) target_link_libraries(noverify_tests secp256k1_precomputed secp256k1_asm) - add_test(noverify_tests noverify_tests) + add_test(NAME noverify_tests COMMAND noverify_tests) if(NOT CMAKE_BUILD_TYPE STREQUAL "Coverage") add_executable(tests tests.c) target_compile_definitions(tests PRIVATE VERIFY) target_link_libraries(tests secp256k1_precomputed secp256k1_asm) - add_test(tests tests) + add_test(NAME tests COMMAND tests) endif() endif() @@ -67,7 +67,7 @@ if(SECP256K1_BUILD_EXHAUSTIVE_TESTS) add_executable(exhaustive_tests tests_exhaustive.c) target_link_libraries(exhaustive_tests secp256k1_asm) target_compile_definitions(exhaustive_tests PRIVATE $<$>:VERIFY>) - add_test(exhaustive_tests exhaustive_tests) + add_test(NAME exhaustive_tests COMMAND exhaustive_tests) endif() if(SECP256K1_BUILD_CTIME_TESTS) From b2e29e43d0e5e65c1e1199f86f59689a1e736109 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 30 Apr 2023 16:46:03 +0100 Subject: [PATCH 066/557] ci: Treat all compiler warnings as errors in "Windows (VS 2022)" task --- .cirrus.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.cirrus.yml b/.cirrus.yml index 592500371b..5b764366f6 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -397,7 +397,7 @@ task: - PowerShell -NoLogo -Command if ($env:CIRRUS_PR -ne $null) { git fetch $env:CIRRUS_REPO_CLONE_URL pull/$env:CIRRUS_PR/merge; git reset --hard FETCH_HEAD; } configure_script: - '%x64_NATIVE_TOOLS%' - - cmake -G "Visual Studio 17 2022" -A x64 -S . -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON + - cmake -E env CFLAGS="/WX" cmake -G "Visual Studio 17 2022" -A x64 -S . -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON build_script: - '%x64_NATIVE_TOOLS%' - cmake --build build --config RelWithDebInfo -- -property:UseMultiToolTask=true;CL_MPcount=5 From d1e48e5474a2be29e17a477874a4963f8f612a5a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 30 Apr 2023 16:53:51 +0100 Subject: [PATCH 067/557] refactor: Make 64-bit shift explicit This change fixes MSVC level-3 warning C4334. See: https://learn.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-3-c4334 Required to enable level 3 warnings (/W3). --- src/ecmult_impl.h | 2 +- src/tests.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index a9a63850ef..73ba79ab7d 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -683,7 +683,7 @@ static int secp256k1_ecmult_pippenger_batch(const secp256k1_callback* error_call } state_space->ps = (struct secp256k1_pippenger_point_state *) secp256k1_scratch_alloc(error_callback, scratch, entries * sizeof(*state_space->ps)); state_space->wnaf_na = (int *) secp256k1_scratch_alloc(error_callback, scratch, entries*(WNAF_SIZE(bucket_window+1)) * sizeof(int)); - buckets = (secp256k1_gej *) secp256k1_scratch_alloc(error_callback, scratch, (1<ps == NULL || state_space->wnaf_na == NULL || buckets == NULL) { secp256k1_scratch_apply_checkpoint(error_callback, scratch, scratch_checkpoint); return 0; diff --git a/src/tests.c b/src/tests.c index 6d46b39d74..da1f0132e4 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2221,7 +2221,7 @@ static void scalar_test(void) { for (i = 0; i < 100; ++i) { int low; int shift = 1 + secp256k1_testrand_int(15); - int expected = r.d[0] % (1 << shift); + int expected = r.d[0] % (1ULL << shift); low = secp256k1_scalar_shr_int(&r, shift); CHECK(expected == low); } From 149c41cee1159fae3928e03be2662b58e9a8e716 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 8 May 2023 13:00:13 +0200 Subject: [PATCH 068/557] docs: complete interface description for `secp256k1_schnorrsig_sign_custom` For the sake of completeness, add the missing descriptions for the return value and parameters (`ctx`, `sig64`, `keypair`), in the same wording/style as for the function `secp256k1_schnorrsig_sign32`. --- include/secp256k1_schnorrsig.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h index 733fee5282..cd9845c5f6 100644 --- a/include/secp256k1_schnorrsig.h +++ b/include/secp256k1_schnorrsig.h @@ -144,9 +144,13 @@ SECP256K1_API int secp256k1_schnorrsig_sign( * Creates the same signatures as schnorrsig_sign if msglen is 32 and the * extraparams.ndata is the same as aux_rand32. * + * Returns 1 on success, 0 on failure. + * Args: ctx: pointer to a context object (not secp256k1_context_static). + * Out: sig64: pointer to a 64-byte array to store the serialized signature. * In: msg: the message being signed. Can only be NULL if msglen is 0. - * msglen: length of the message - * extraparams: pointer to a extraparams object (can be NULL) + * msglen: length of the message. + * keypair: pointer to an initialized keypair. + * extraparams: pointer to an extraparams object (can be NULL). */ SECP256K1_API int secp256k1_schnorrsig_sign_custom( const secp256k1_context *ctx, From bc7c8db179a56cf7273f3c4c0decd10543a10521 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Thu, 4 May 2023 15:56:39 +0000 Subject: [PATCH 069/557] abi: Use dllexport for mingw builds This should fix mingw exports, specifically hiding the following: secp256k1_pre_g_128 secp256k1_pre_g secp256k1_ecmult_gen_prec_table This changes our visibility macros to look more like gcc's recommendation: https://gcc.gnu.org/wiki/Visibility#How_to_use_the_new_C.2B-.2B-_visibility_support --- include/secp256k1.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index a7a2be7a3a..01d18cff09 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -133,8 +133,9 @@ typedef int (*secp256k1_nonce_function)( # define SECP256K1_NO_BUILD #endif -/* Symbol visibility. See libtool manual, section "Windows DLLs". */ -#if defined(_WIN32) && !defined(__GNUC__) +/* Symbol visibility. See https://gcc.gnu.org/wiki/Visibility */ +/* DLL_EXPORT is defined internally for shared builds */ +#if defined(_WIN32) # ifdef SECP256K1_BUILD # ifdef DLL_EXPORT # define SECP256K1_API __declspec (dllexport) From 723e8ca8f7ee75126bac4240feeac825c23a0d44 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 8 May 2023 12:07:26 -0400 Subject: [PATCH 070/557] Remove randomness tests Our RNG has been replaced with Xoshiro256++, a well-analyzed RNG. Our unit tests should not be resposible for verifying its statistical qualities. --- src/tests.c | 76 ----------------------------------------------------- 1 file changed, 76 deletions(-) diff --git a/src/tests.c b/src/tests.c index 6d46b39d74..462407be2e 100644 --- a/src/tests.c +++ b/src/tests.c @@ -804,78 +804,6 @@ static void run_tagged_sha256_tests(void) { CHECK(secp256k1_memcmp_var(hash32, hash_expected, sizeof(hash32)) == 0); } -/***** RANDOM TESTS *****/ - -static void test_rand_bits(int rand32, int bits) { - /* (1-1/2^B)^rounds[B] < 1/10^9, so rounds is the number of iterations to - * get a false negative chance below once in a billion */ - static const unsigned int rounds[7] = {1, 30, 73, 156, 322, 653, 1316}; - /* We try multiplying the results with various odd numbers, which shouldn't - * influence the uniform distribution modulo a power of 2. */ - static const uint32_t mults[6] = {1, 3, 21, 289, 0x9999, 0x80402011}; - /* We only select up to 6 bits from the output to analyse */ - unsigned int usebits = bits > 6 ? 6 : bits; - unsigned int maxshift = bits - usebits; - /* For each of the maxshift+1 usebits-bit sequences inside a bits-bit - number, track all observed outcomes, one per bit in a uint64_t. */ - uint64_t x[6][27] = {{0}}; - unsigned int i, shift, m; - /* Multiply the output of all rand calls with the odd number m, which - should not change the uniformity of its distribution. */ - for (i = 0; i < rounds[usebits]; i++) { - uint32_t r = (rand32 ? secp256k1_testrand32() : secp256k1_testrand_bits(bits)); - CHECK((((uint64_t)r) >> bits) == 0); - for (m = 0; m < sizeof(mults) / sizeof(mults[0]); m++) { - uint32_t rm = r * mults[m]; - for (shift = 0; shift <= maxshift; shift++) { - x[m][shift] |= (((uint64_t)1) << ((rm >> shift) & ((1 << usebits) - 1))); - } - } - } - for (m = 0; m < sizeof(mults) / sizeof(mults[0]); m++) { - for (shift = 0; shift <= maxshift; shift++) { - /* Test that the lower usebits bits of x[shift] are 1 */ - CHECK(((~x[m][shift]) << (64 - (1 << usebits))) == 0); - } - } -} - -/* Subrange must be a whole divisor of range, and at most 64 */ -static void test_rand_int(uint32_t range, uint32_t subrange) { - /* (1-1/subrange)^rounds < 1/10^9 */ - int rounds = (subrange * 2073) / 100; - int i; - uint64_t x = 0; - CHECK((range % subrange) == 0); - for (i = 0; i < rounds; i++) { - uint32_t r = secp256k1_testrand_int(range); - CHECK(r < range); - r = r % subrange; - x |= (((uint64_t)1) << r); - } - /* Test that the lower subrange bits of x are 1. */ - CHECK(((~x) << (64 - subrange)) == 0); -} - -static void run_rand_bits(void) { - size_t b; - test_rand_bits(1, 32); - for (b = 1; b <= 32; b++) { - test_rand_bits(0, b); - } -} - -static void run_rand_int(void) { - static const uint32_t ms[] = {1, 3, 17, 1000, 13771, 999999, 33554432}; - static const uint32_t ss[] = {1, 3, 6, 9, 13, 31, 64}; - unsigned int m, s; - for (m = 0; m < sizeof(ms) / sizeof(ms[0]); m++) { - for (s = 0; s < sizeof(ss) / sizeof(ss[0]); s++) { - test_rand_int(ms[m] * ss[s], ss[s]); - } - } -} - /***** MODINV TESTS *****/ /* Compute the modular inverse of (odd) x mod 2^64. */ @@ -7730,10 +7658,6 @@ int main(int argc, char **argv) { /* scratch tests */ run_scratch_tests(); - /* randomness tests */ - run_rand_bits(); - run_rand_int(); - /* integer arithmetic tests */ #ifdef SECP256K1_WIDEMUL_INT128 run_int128_tests(); From fb5bfa4eed834dcd58109525408a2d88dabc48c5 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 9 May 2023 18:07:11 +0200 Subject: [PATCH 071/557] Add static test vector for Xoshiro256++ --- src/tests.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/src/tests.c b/src/tests.c index 462407be2e..664c541d9c 100644 --- a/src/tests.c +++ b/src/tests.c @@ -172,6 +172,35 @@ static void random_scalar_order_b32(unsigned char *b32) { secp256k1_scalar_get_b32(b32, &num); } +static void run_xoshiro256pp_tests(void) { + { + size_t i; + /* Sanity check that we run before the actual seeding. */ + for (i = 0; i < sizeof(secp256k1_test_state)/sizeof(secp256k1_test_state[0]); i++) { + CHECK(secp256k1_test_state[i] == 0); + } + } + { + int i; + unsigned char buf32[32]; + unsigned char seed16[16] = { + 'C', 'H', 'I', 'C', 'K', 'E', 'N', '!', + 'C', 'H', 'I', 'C', 'K', 'E', 'N', '!', + }; + unsigned char buf32_expected[32] = { + 0xAF, 0xCC, 0xA9, 0x16, 0xB5, 0x6C, 0xE3, 0xF0, + 0x44, 0x3F, 0x45, 0xE0, 0x47, 0xA5, 0x08, 0x36, + 0x4C, 0xCC, 0xC1, 0x18, 0xB2, 0xD8, 0x8F, 0xEF, + 0x43, 0x26, 0x15, 0x57, 0x37, 0x00, 0xEF, 0x30, + }; + secp256k1_testrand_seed(seed16); + for (i = 0; i < 17; i++) { + secp256k1_testrand256(buf32); + } + CHECK(secp256k1_memcmp_var(buf32, buf32_expected, sizeof(buf32)) == 0); + } +} + static void run_selftest_tests(void) { /* Test public API */ secp256k1_selftest(); @@ -7621,6 +7650,9 @@ int main(int argc, char **argv) { } printf("test count = %i\n", COUNT); + /* run test RNG tests (must run before we really initialize the test RNG) */ + run_xoshiro256pp_tests(); + /* find random seed */ secp256k1_testrand_init(argc > 2 ? argv[2] : NULL); From 2e65f1fdbcc87e2ef8c0baf4abc8ee0f56daf7fe Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 9 May 2023 14:00:43 -0400 Subject: [PATCH 072/557] Avoid using bench_verify_data as bench_sign_data; merge them --- src/bench.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/src/bench.c b/src/bench.c index 833f70718b..9992056871 100644 --- a/src/bench.c +++ b/src/bench.c @@ -64,11 +64,11 @@ typedef struct { size_t siglen; unsigned char pubkey[33]; size_t pubkeylen; -} bench_verify_data; +} bench_data; static void bench_verify(void* arg, int iters) { int i; - bench_verify_data* data = (bench_verify_data*)arg; + bench_data* data = (bench_data*)arg; for (i = 0; i < iters; i++) { secp256k1_pubkey pubkey; @@ -85,15 +85,9 @@ static void bench_verify(void* arg, int iters) { } } -typedef struct { - secp256k1_context* ctx; - unsigned char msg[32]; - unsigned char key[32]; -} bench_sign_data; - static void bench_sign_setup(void* arg) { int i; - bench_sign_data *data = (bench_sign_data*)arg; + bench_data *data = (bench_data*)arg; for (i = 0; i < 32; i++) { data->msg[i] = i + 1; @@ -105,7 +99,7 @@ static void bench_sign_setup(void* arg) { static void bench_sign_run(void* arg, int iters) { int i; - bench_sign_data *data = (bench_sign_data*)arg; + bench_data *data = (bench_data*)arg; unsigned char sig[74]; for (i = 0; i < iters; i++) { @@ -137,7 +131,7 @@ int main(int argc, char** argv) { int i; secp256k1_pubkey pubkey; secp256k1_ecdsa_signature sig; - bench_verify_data data; + bench_data data; int d = argc == 1; int default_iters = 20000; From a0e696fd4da3788758bb3fdae66c7ae262dbf224 Mon Sep 17 00:00:00 2001 From: Gregory Maxwell Date: Sat, 8 Aug 2020 03:52:34 +0000 Subject: [PATCH 073/557] Make secp256k1_ecmult_const handle infinity Infinity isn't currently needed here, but correctly handling it is a little more safe against future changes. Update docs for it to make it clear that it is not constant time in A (the input point). It never was constant time in Q (and would be a little complicated to make constant time in A). If it was later made constant time in A, infinity support would be easy to preserve, e.g. by running it on a dummy value and cmoving infinity into the output. --- src/ecmult_const.h | 3 +-- src/ecmult_const_impl.h | 5 +++++ src/tests_exhaustive.c | 4 ++-- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/src/ecmult_const.h b/src/ecmult_const.h index 9e065d555d..080e04bc88 100644 --- a/src/ecmult_const.h +++ b/src/ecmult_const.h @@ -11,8 +11,7 @@ #include "group.h" /** - * Multiply: R = q*A (in constant-time) - * A must not be infinity. + * Multiply: R = q*A (in constant-time for q) */ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q); diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index f2b6f48285..81e16e343d 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -144,6 +144,11 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons int i; + if (secp256k1_ge_is_infinity(a)) { + secp256k1_gej_set_infinity(r); + return; + } + /* build wnaf representation for q. */ /* split q into q_1 and q_lam (where q = q_1 + q_lam*lambda, and q_1 and q_lam are ~128 bit) */ secp256k1_scalar_split_lambda(&q_1, &q_lam, scalar); diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 5a990f7d64..ee60fe9f45 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -193,7 +193,7 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge } for (j = 0; j < EXHAUSTIVE_TEST_ORDER; j++) { - for (i = 1; i < EXHAUSTIVE_TEST_ORDER; i++) { + for (i = 0; i < EXHAUSTIVE_TEST_ORDER; i++) { int ret; secp256k1_gej tmp; secp256k1_fe xn, xd, tmpf; @@ -207,7 +207,7 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge secp256k1_ecmult_const(&tmp, &group[i], &ng); ge_equals_gej(&group[(i * j) % EXHAUSTIVE_TEST_ORDER], &tmp); - if (j != 0) { + if (i != 0 && j != 0) { /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, and xd=NULL. */ ret = secp256k1_ecmult_const_xonly(&tmpf, &group[i].x, NULL, &ng, 0); CHECK(ret); From 3086cb90acd9d61c5b38e862877fdeacaff74a50 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 1 Sep 2020 16:33:22 -0700 Subject: [PATCH 074/557] Expose secp256k1_fe_verify to other modules --- src/field.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/field.h b/src/field.h index c7a88c4e13..62dc0f3ae0 100644 --- a/src/field.h +++ b/src/field.h @@ -143,4 +143,9 @@ static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m); /** Determine whether a is a square (modulo p). */ static int secp256k1_fe_is_square_var(const secp256k1_fe *a); +#ifdef VERIFY +/** Check invariants on a field element. */ +static void secp256k1_fe_verify(const secp256k1_fe *a); +#endif + #endif /* SECP256K1_FIELD_H */ From a18821d5b1d44db0e7c8335f338cc9876bec98cb Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 1 Sep 2020 18:15:21 -0700 Subject: [PATCH 075/557] Always initialize output coordinates in secp256k1_ge_set_gej --- src/group_impl.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/group_impl.h b/src/group_impl.h index 29017dc965..d6031e58cf 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -115,10 +115,11 @@ static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; - if (a->infinity) { + if (secp256k1_gej_is_infinity(a)) { secp256k1_ge_set_infinity(r); return; } + r->infinity = 0; secp256k1_fe_inv_var(&a->z, &a->z); secp256k1_fe_sqr(&z2, &a->z); secp256k1_fe_mul(&z3, &a->z, &z2); From f20266722ac93ca66d1beb0d2f2d2469b95aafea Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 1 Sep 2020 17:59:51 -0700 Subject: [PATCH 076/557] Add invariant checking to group elements --- src/group.h | 8 ++ src/group_impl.h | 188 +++++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 191 insertions(+), 5 deletions(-) diff --git a/src/group.h b/src/group.h index b79ba597db..14cdb4062d 100644 --- a/src/group.h +++ b/src/group.h @@ -164,4 +164,12 @@ static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *b); */ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge); +#ifdef VERIFY +/** Check invariants on an affine group element. */ +static void secp256k1_ge_verify(const secp256k1_ge *a); + +/** Check invariants on a Jacobian group element. */ +static void secp256k1_gej_verify(const secp256k1_gej *a); +#endif + #endif /* SECP256K1_GROUP_H */ diff --git a/src/group_impl.h b/src/group_impl.h index d6031e58cf..86be92d59d 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -73,35 +73,78 @@ static const secp256k1_ge secp256k1_ge_const_g = SECP256K1_G; #endif /* End of section generated by sage/gen_exhaustive_groups.sage. */ +#ifdef VERIFY +static void secp256k1_ge_verify(const secp256k1_ge *a) { + secp256k1_fe_verify(&a->x); + secp256k1_fe_verify(&a->y); + VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); +} + +static void secp256k1_gej_verify(const secp256k1_gej *a) { + secp256k1_fe_verify(&a->x); + secp256k1_fe_verify(&a->y); + secp256k1_fe_verify(&a->z); + VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); +} +#endif + static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi) { secp256k1_fe zi2; secp256k1_fe zi3; +#ifdef VERIFY + /* Do not call secp256k1_ge_verify, as we do not require a->z to be initialized. */ + secp256k1_fe_verify(&a->x); + secp256k1_fe_verify(&a->y); + secp256k1_fe_verify(zi); +#endif VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&zi2, zi); secp256k1_fe_mul(&zi3, &zi2, zi); secp256k1_fe_mul(&r->x, &a->x, &zi2); secp256k1_fe_mul(&r->y, &a->y, &zi3); r->infinity = a->infinity; +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static void secp256k1_ge_set_xy(secp256k1_ge *r, const secp256k1_fe *x, const secp256k1_fe *y) { +#ifdef VERIFY + secp256k1_fe_verify(x); + secp256k1_fe_verify(y); +#endif r->infinity = 0; r->x = *x; r->y = *y; +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static int secp256k1_ge_is_infinity(const secp256k1_ge *a) { +#ifdef VERIFY + secp256k1_ge_verify(a); +#endif return a->infinity; } static void secp256k1_ge_neg(secp256k1_ge *r, const secp256k1_ge *a) { +#ifdef VERIFY + secp256k1_ge_verify(a); +#endif *r = *a; secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; +#ifdef VERIFY + secp256k1_gej_verify(a); +#endif r->infinity = a->infinity; secp256k1_fe_inv(&a->z, &a->z); secp256k1_fe_sqr(&z2, &a->z); @@ -111,10 +154,16 @@ static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe_set_int(&a->z, 1); r->x = a->x; r->y = a->y; +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; +#ifdef VERIFY + secp256k1_gej_verify(a); +#endif if (secp256k1_gej_is_infinity(a)) { secp256k1_ge_set_infinity(r); return; @@ -127,6 +176,9 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe_mul(&a->y, &a->y, &z3); secp256k1_fe_set_int(&a->z, 1); secp256k1_ge_set_xy(r, &a->x, &a->y); +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len) { @@ -135,6 +187,9 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a size_t last_i = SIZE_MAX; for (i = 0; i < len; i++) { +#ifdef VERIFY + secp256k1_gej_verify(&a[i]); +#endif if (a[i].infinity) { secp256k1_ge_set_infinity(&r[i]); } else { @@ -168,6 +223,9 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a if (!a[i].infinity) { secp256k1_ge_set_gej_zinv(&r[i], &a[i], &r[i].x); } +#ifdef VERIFY + secp256k1_ge_verify(&r[i]); +#endif } } @@ -176,6 +234,11 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se secp256k1_fe zs; if (len > 0) { +#ifdef VERIFY + /* Verify inputs a[len-1] and zr[len-1]. */ + secp256k1_ge_verify(&a[i]); + secp256k1_fe_verify(&zr[i]); +#endif /* Ensure all y values are in weak normal form for fast negation of points */ secp256k1_fe_normalize_weak(&a[i].y); zs = zr[i]; @@ -183,6 +246,11 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se /* Work our way backwards, using the z-ratios to scale the x/y values. */ while (i > 0) { secp256k1_gej tmpa; +#ifdef VERIFY + /* Verify all inputs a[i] and zr[i]. */ + secp256k1_fe_verify(&zr[i]); + secp256k1_ge_verify(&a[i]); +#endif if (i != len - 1) { secp256k1_fe_mul(&zs, &zs, &zr[i]); } @@ -191,6 +259,10 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se tmpa.y = a[i].y; tmpa.infinity = 0; secp256k1_ge_set_gej_zinv(&a[i], &tmpa, &zs); +#ifdef VERIFY + /* Verify the output a[i]. */ + secp256k1_ge_verify(&a[i]); +#endif } } } @@ -200,12 +272,18 @@ static void secp256k1_gej_set_infinity(secp256k1_gej *r) { secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); secp256k1_fe_clear(&r->z); +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static void secp256k1_ge_set_infinity(secp256k1_ge *r) { r->infinity = 1; secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static void secp256k1_gej_clear(secp256k1_gej *r) { @@ -223,31 +301,45 @@ static void secp256k1_ge_clear(secp256k1_ge *r) { static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd) { secp256k1_fe x2, x3; + int ret; +#ifdef VERIFY + secp256k1_fe_verify(x); +#endif r->x = *x; secp256k1_fe_sqr(&x2, x); secp256k1_fe_mul(&x3, x, &x2); r->infinity = 0; secp256k1_fe_add_int(&x3, SECP256K1_B); - if (!secp256k1_fe_sqrt(&r->y, &x3)) { - return 0; - } + ret = secp256k1_fe_sqrt(&r->y, &x3); secp256k1_fe_normalize_var(&r->y); if (secp256k1_fe_is_odd(&r->y) != odd) { secp256k1_fe_negate(&r->y, &r->y, 1); } - return 1; - +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif + return ret; } static void secp256k1_gej_set_ge(secp256k1_gej *r, const secp256k1_ge *a) { +#ifdef VERIFY + secp256k1_ge_verify(a); +#endif r->infinity = a->infinity; r->x = a->x; r->y = a->y; secp256k1_fe_set_int(&r->z, 1); +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) { secp256k1_gej tmp; +#ifdef VERIFY + secp256k1_gej_verify(b); + secp256k1_gej_verify(a); +#endif secp256k1_gej_neg(&tmp, a); secp256k1_gej_add_var(&tmp, &tmp, b, NULL); return secp256k1_gej_is_infinity(&tmp); @@ -255,6 +347,10 @@ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) { secp256k1_fe r, r2; +#ifdef VERIFY + secp256k1_fe_verify(x); + secp256k1_gej_verify(a); +#endif VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&r, &a->z); secp256k1_fe_mul(&r, &r, x); r2 = a->x; secp256k1_fe_normalize_weak(&r2); @@ -262,20 +358,32 @@ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) } static void secp256k1_gej_neg(secp256k1_gej *r, const secp256k1_gej *a) { +#ifdef VERIFY + secp256k1_gej_verify(a); +#endif r->infinity = a->infinity; r->x = a->x; r->y = a->y; r->z = a->z; secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static int secp256k1_gej_is_infinity(const secp256k1_gej *a) { +#ifdef VERIFY + secp256k1_gej_verify(a); +#endif return a->infinity; } static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { secp256k1_fe y2, x3; +#ifdef VERIFY + secp256k1_ge_verify(a); +#endif if (a->infinity) { return 0; } @@ -291,6 +399,9 @@ static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp25 /* Operations: 3 mul, 4 sqr, 8 add/half/mul_int/negate */ secp256k1_fe l, s, t; +#ifdef VERIFY + secp256k1_gej_verify(a); +#endif r->infinity = a->infinity; /* Formula used: @@ -317,6 +428,9 @@ static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp25 secp256k1_fe_mul(&r->y, &t, &l); /* Y3 = L*(X3 + T) (1) */ secp256k1_fe_add(&r->y, &s); /* Y3 = L*(X3 + T) + S^2 (2) */ secp256k1_fe_negate(&r->y, &r->y, 2); /* Y3 = -(L*(X3 + T) + S^2) (3) */ +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe *rzr) { @@ -330,6 +444,9 @@ static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, s * the infinity flag even though the point doubles to infinity, and the result * point will be gibberish (z = 0 but infinity = 0). */ +#ifdef VERIFY + secp256k1_gej_verify(a); +#endif if (a->infinity) { secp256k1_gej_set_infinity(r); if (rzr != NULL) { @@ -344,12 +461,19 @@ static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, s } secp256k1_gej_double(r, a); +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_gej *b, secp256k1_fe *rzr) { /* 12 mul, 4 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z22, z12, u1, u2, s1, s2, h, i, h2, h3, t; +#ifdef VERIFY + secp256k1_gej_verify(a); + secp256k1_gej_verify(b); +#endif if (a->infinity) { VERIFY_CHECK(rzr == NULL); *r = *b; @@ -404,11 +528,18 @@ static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, cons secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, secp256k1_fe *rzr) { /* 8 mul, 3 sqr, 13 add/negate/normalize_weak/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z12, u1, u2, s1, s2, h, i, h2, h3, t; +#ifdef VERIFY + secp256k1_gej_verify(a); + secp256k1_ge_verify(b); +#endif if (a->infinity) { VERIFY_CHECK(rzr == NULL); secp256k1_gej_set_ge(r, b); @@ -461,12 +592,20 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); +#ifdef VERIFY + secp256k1_gej_verify(r); + if (rzr != NULL) secp256k1_fe_verify(rzr); +#endif } static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, const secp256k1_fe *bzinv) { /* 9 mul, 3 sqr, 13 add/negate/normalize_weak/normalizes_to_zero (ignoring special cases) */ secp256k1_fe az, z12, u1, u2, s1, s2, h, i, h2, h3, t; +#ifdef VERIFY + secp256k1_ge_verify(b); + secp256k1_fe_verify(bzinv); +#endif if (a->infinity) { secp256k1_fe bzinv2, bzinv3; r->infinity = b->infinity; @@ -525,6 +664,9 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } @@ -533,6 +675,10 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_fe zz, u1, u2, s1, s2, t, tt, m, n, q, rr; secp256k1_fe m_alt, rr_alt; int degenerate; +#ifdef VERIFY + secp256k1_gej_verify(a); + secp256k1_ge_verify(b); +#endif VERIFY_CHECK(!b->infinity); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); @@ -658,21 +804,34 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const * We have degenerate = false, r->z = (y1 + y2) * Z. * Then r->infinity = ((y1 + y2)Z == 0) = (y1 == -y2) = false. */ r->infinity = secp256k1_fe_normalizes_to_zero(&r->z); +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *s) { /* Operations: 4 mul, 1 sqr */ secp256k1_fe zz; +#ifdef VERIFY + secp256k1_gej_verify(r); + secp256k1_fe_verify(s); +#endif VERIFY_CHECK(!secp256k1_fe_is_zero(s)); secp256k1_fe_sqr(&zz, s); secp256k1_fe_mul(&r->x, &r->x, &zz); /* r->x *= s^2 */ secp256k1_fe_mul(&r->y, &r->y, &zz); secp256k1_fe_mul(&r->y, &r->y, s); /* r->y *= s^3 */ secp256k1_fe_mul(&r->z, &r->z, s); /* r->z *= s */ +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static void secp256k1_ge_to_storage(secp256k1_ge_storage *r, const secp256k1_ge *a) { secp256k1_fe x, y; +#ifdef VERIFY + secp256k1_ge_verify(a); +#endif VERIFY_CHECK(!a->infinity); x = a->x; secp256k1_fe_normalize(&x); @@ -686,14 +845,24 @@ static void secp256k1_ge_from_storage(secp256k1_ge *r, const secp256k1_ge_storag secp256k1_fe_from_storage(&r->x, &a->x); secp256k1_fe_from_storage(&r->y, &a->y); r->infinity = 0; +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static SECP256K1_INLINE void secp256k1_gej_cmov(secp256k1_gej *r, const secp256k1_gej *a, int flag) { +#ifdef VERIFY + secp256k1_gej_verify(r); + secp256k1_gej_verify(a); +#endif secp256k1_fe_cmov(&r->x, &a->x, flag); secp256k1_fe_cmov(&r->y, &a->y, flag); secp256k1_fe_cmov(&r->z, &a->z, flag); r->infinity ^= (r->infinity ^ a->infinity) & flag; +#ifdef VERIFY + secp256k1_gej_verify(r); +#endif } static SECP256K1_INLINE void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, const secp256k1_ge_storage *a, int flag) { @@ -703,7 +872,13 @@ static SECP256K1_INLINE void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, static void secp256k1_ge_mul_lambda(secp256k1_ge *r, const secp256k1_ge *a) { *r = *a; +#ifdef VERIFY + secp256k1_ge_verify(a); +#endif secp256k1_fe_mul(&r->x, &r->x, &secp256k1_const_beta); +#ifdef VERIFY + secp256k1_ge_verify(r); +#endif } static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { @@ -711,6 +886,9 @@ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { secp256k1_gej out; int i; +#ifdef VERIFY + secp256k1_ge_verify(ge); +#endif /* A very simple EC multiplication ladder that avoids a dependency on ecmult. */ secp256k1_gej_set_infinity(&out); for (i = 0; i < 32; ++i) { From 0a2e0b2ae456c7ae60e92ddc354071f21fb6aa62 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 9 May 2023 12:46:00 -0400 Subject: [PATCH 077/557] Make secp256k1_{fe,ge,gej}_verify work as no-op if non-VERIFY --- src/field.h | 4 +- src/field_10x26_impl.h | 9 ++-- src/field_5x52_impl.h | 9 ++-- src/group.h | 6 +-- src/group_impl.h | 106 +++-------------------------------------- 5 files changed, 15 insertions(+), 119 deletions(-) diff --git a/src/field.h b/src/field.h index 62dc0f3ae0..dca75aac10 100644 --- a/src/field.h +++ b/src/field.h @@ -143,9 +143,7 @@ static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m); /** Determine whether a is a square (modulo p). */ static int secp256k1_fe_is_square_var(const secp256k1_fe *a); -#ifdef VERIFY -/** Check invariants on a field element. */ +/** Check invariants on a field element (no-op unless VERIFY is enabled). */ static void secp256k1_fe_verify(const secp256k1_fe *a); -#endif #endif /* SECP256K1_FIELD_H */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 6b58380f98..c164711757 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -21,8 +21,8 @@ * - 2*M*(2^26-1) is the max (inclusive) of the remaining limbs */ -#ifdef VERIFY static void secp256k1_fe_verify(const secp256k1_fe *a) { +#ifdef VERIFY const uint32_t *d = a->n; int m = a->normalized ? 1 : 2 * a->magnitude, r = 1; r &= (d[0] <= 0x3FFFFFFUL * m); @@ -47,8 +47,9 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { } } VERIFY_CHECK(r == 1); -} #endif + (void)a; +} static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { VERIFY_CHECK(m >= 0); @@ -458,9 +459,7 @@ SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { } SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a) { -#ifdef VERIFY secp256k1_fe_verify(a); -#endif r->n[0] += a->n[0]; r->n[1] += a->n[1]; r->n[2] += a->n[2]; @@ -479,11 +478,9 @@ SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_f } SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { -#ifdef VERIFY secp256k1_fe_verify(r); VERIFY_CHECK(a >= 0); VERIFY_CHECK(a <= 0x7FFF); -#endif r->n[0] += a; #ifdef VERIFY r->magnitude += 1; diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 0e403f32a6..9b9794c099 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -33,8 +33,8 @@ * 0 or 1, and its value is already reduced modulo the order of the field. */ -#ifdef VERIFY static void secp256k1_fe_verify(const secp256k1_fe *a) { +#ifdef VERIFY const uint64_t *d = a->n; int m = a->normalized ? 1 : 2 * a->magnitude, r = 1; /* secp256k1 'p' value defined in "Standards for Efficient Cryptography" (SEC2) 2.7.1. */ @@ -52,8 +52,9 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { } } VERIFY_CHECK(r == 1); -} #endif + (void)a; +} static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { VERIFY_CHECK(m >= 0); @@ -422,11 +423,9 @@ SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { } SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { -#ifdef VERIFY secp256k1_fe_verify(r); VERIFY_CHECK(a >= 0); VERIFY_CHECK(a <= 0x7FFF); -#endif r->n[0] += a; #ifdef VERIFY r->magnitude += 1; @@ -436,9 +435,7 @@ SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { } SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a) { -#ifdef VERIFY secp256k1_fe_verify(a); -#endif r->n[0] += a->n[0]; r->n[1] += a->n[1]; r->n[2] += a->n[2]; diff --git a/src/group.h b/src/group.h index 14cdb4062d..77ad7435f8 100644 --- a/src/group.h +++ b/src/group.h @@ -164,12 +164,10 @@ static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *b); */ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge); -#ifdef VERIFY -/** Check invariants on an affine group element. */ +/** Check invariants on an affine group element (no-op unless VERIFY is enabled). */ static void secp256k1_ge_verify(const secp256k1_ge *a); -/** Check invariants on a Jacobian group element. */ +/** Check invariants on a Jacobian group element (no-op unless VERIFY is enabled). */ static void secp256k1_gej_verify(const secp256k1_gej *a); -#endif #endif /* SECP256K1_GROUP_H */ diff --git a/src/group_impl.h b/src/group_impl.h index 86be92d59d..48357a1c5d 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -73,78 +73,66 @@ static const secp256k1_ge secp256k1_ge_const_g = SECP256K1_G; #endif /* End of section generated by sage/gen_exhaustive_groups.sage. */ -#ifdef VERIFY static void secp256k1_ge_verify(const secp256k1_ge *a) { +#ifdef VERIFY secp256k1_fe_verify(&a->x); secp256k1_fe_verify(&a->y); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); +#endif + (void)a; } static void secp256k1_gej_verify(const secp256k1_gej *a) { +#ifdef VERIFY secp256k1_fe_verify(&a->x); secp256k1_fe_verify(&a->y); secp256k1_fe_verify(&a->z); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); -} #endif + (void)a; +} static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi) { secp256k1_fe zi2; secp256k1_fe zi3; -#ifdef VERIFY /* Do not call secp256k1_ge_verify, as we do not require a->z to be initialized. */ secp256k1_fe_verify(&a->x); secp256k1_fe_verify(&a->y); secp256k1_fe_verify(zi); -#endif VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&zi2, zi); secp256k1_fe_mul(&zi3, &zi2, zi); secp256k1_fe_mul(&r->x, &a->x, &zi2); secp256k1_fe_mul(&r->y, &a->y, &zi3); r->infinity = a->infinity; -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static void secp256k1_ge_set_xy(secp256k1_ge *r, const secp256k1_fe *x, const secp256k1_fe *y) { -#ifdef VERIFY secp256k1_fe_verify(x); secp256k1_fe_verify(y); -#endif r->infinity = 0; r->x = *x; r->y = *y; -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static int secp256k1_ge_is_infinity(const secp256k1_ge *a) { -#ifdef VERIFY secp256k1_ge_verify(a); -#endif return a->infinity; } static void secp256k1_ge_neg(secp256k1_ge *r, const secp256k1_ge *a) { -#ifdef VERIFY secp256k1_ge_verify(a); -#endif *r = *a; secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; -#ifdef VERIFY secp256k1_gej_verify(a); -#endif r->infinity = a->infinity; secp256k1_fe_inv(&a->z, &a->z); secp256k1_fe_sqr(&z2, &a->z); @@ -154,16 +142,12 @@ static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe_set_int(&a->z, 1); r->x = a->x; r->y = a->y; -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; -#ifdef VERIFY secp256k1_gej_verify(a); -#endif if (secp256k1_gej_is_infinity(a)) { secp256k1_ge_set_infinity(r); return; @@ -176,9 +160,7 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe_mul(&a->y, &a->y, &z3); secp256k1_fe_set_int(&a->z, 1); secp256k1_ge_set_xy(r, &a->x, &a->y); -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len) { @@ -187,9 +169,7 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a size_t last_i = SIZE_MAX; for (i = 0; i < len; i++) { -#ifdef VERIFY secp256k1_gej_verify(&a[i]); -#endif if (a[i].infinity) { secp256k1_ge_set_infinity(&r[i]); } else { @@ -223,9 +203,7 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a if (!a[i].infinity) { secp256k1_ge_set_gej_zinv(&r[i], &a[i], &r[i].x); } -#ifdef VERIFY secp256k1_ge_verify(&r[i]); -#endif } } @@ -234,11 +212,9 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se secp256k1_fe zs; if (len > 0) { -#ifdef VERIFY /* Verify inputs a[len-1] and zr[len-1]. */ secp256k1_ge_verify(&a[i]); secp256k1_fe_verify(&zr[i]); -#endif /* Ensure all y values are in weak normal form for fast negation of points */ secp256k1_fe_normalize_weak(&a[i].y); zs = zr[i]; @@ -246,11 +222,9 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se /* Work our way backwards, using the z-ratios to scale the x/y values. */ while (i > 0) { secp256k1_gej tmpa; -#ifdef VERIFY /* Verify all inputs a[i] and zr[i]. */ secp256k1_fe_verify(&zr[i]); secp256k1_ge_verify(&a[i]); -#endif if (i != len - 1) { secp256k1_fe_mul(&zs, &zs, &zr[i]); } @@ -259,10 +233,8 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se tmpa.y = a[i].y; tmpa.infinity = 0; secp256k1_ge_set_gej_zinv(&a[i], &tmpa, &zs); -#ifdef VERIFY /* Verify the output a[i]. */ secp256k1_ge_verify(&a[i]); -#endif } } } @@ -272,18 +244,14 @@ static void secp256k1_gej_set_infinity(secp256k1_gej *r) { secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); secp256k1_fe_clear(&r->z); -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static void secp256k1_ge_set_infinity(secp256k1_ge *r) { r->infinity = 1; secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static void secp256k1_gej_clear(secp256k1_gej *r) { @@ -302,9 +270,7 @@ static void secp256k1_ge_clear(secp256k1_ge *r) { static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd) { secp256k1_fe x2, x3; int ret; -#ifdef VERIFY secp256k1_fe_verify(x); -#endif r->x = *x; secp256k1_fe_sqr(&x2, x); secp256k1_fe_mul(&x3, x, &x2); @@ -315,31 +281,23 @@ static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int o if (secp256k1_fe_is_odd(&r->y) != odd) { secp256k1_fe_negate(&r->y, &r->y, 1); } -#ifdef VERIFY secp256k1_ge_verify(r); -#endif return ret; } static void secp256k1_gej_set_ge(secp256k1_gej *r, const secp256k1_ge *a) { -#ifdef VERIFY secp256k1_ge_verify(a); -#endif r->infinity = a->infinity; r->x = a->x; r->y = a->y; secp256k1_fe_set_int(&r->z, 1); -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) { secp256k1_gej tmp; -#ifdef VERIFY secp256k1_gej_verify(b); secp256k1_gej_verify(a); -#endif secp256k1_gej_neg(&tmp, a); secp256k1_gej_add_var(&tmp, &tmp, b, NULL); return secp256k1_gej_is_infinity(&tmp); @@ -347,10 +305,8 @@ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) { secp256k1_fe r, r2; -#ifdef VERIFY secp256k1_fe_verify(x); secp256k1_gej_verify(a); -#endif VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&r, &a->z); secp256k1_fe_mul(&r, &r, x); r2 = a->x; secp256k1_fe_normalize_weak(&r2); @@ -358,32 +314,24 @@ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) } static void secp256k1_gej_neg(secp256k1_gej *r, const secp256k1_gej *a) { -#ifdef VERIFY secp256k1_gej_verify(a); -#endif r->infinity = a->infinity; r->x = a->x; r->y = a->y; r->z = a->z; secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static int secp256k1_gej_is_infinity(const secp256k1_gej *a) { -#ifdef VERIFY secp256k1_gej_verify(a); -#endif return a->infinity; } static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { secp256k1_fe y2, x3; -#ifdef VERIFY secp256k1_ge_verify(a); -#endif if (a->infinity) { return 0; } @@ -399,9 +347,7 @@ static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp25 /* Operations: 3 mul, 4 sqr, 8 add/half/mul_int/negate */ secp256k1_fe l, s, t; -#ifdef VERIFY secp256k1_gej_verify(a); -#endif r->infinity = a->infinity; /* Formula used: @@ -428,9 +374,7 @@ static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp25 secp256k1_fe_mul(&r->y, &t, &l); /* Y3 = L*(X3 + T) (1) */ secp256k1_fe_add(&r->y, &s); /* Y3 = L*(X3 + T) + S^2 (2) */ secp256k1_fe_negate(&r->y, &r->y, 2); /* Y3 = -(L*(X3 + T) + S^2) (3) */ -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe *rzr) { @@ -444,9 +388,7 @@ static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, s * the infinity flag even though the point doubles to infinity, and the result * point will be gibberish (z = 0 but infinity = 0). */ -#ifdef VERIFY secp256k1_gej_verify(a); -#endif if (a->infinity) { secp256k1_gej_set_infinity(r); if (rzr != NULL) { @@ -461,19 +403,15 @@ static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, s } secp256k1_gej_double(r, a); -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_gej *b, secp256k1_fe *rzr) { /* 12 mul, 4 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z22, z12, u1, u2, s1, s2, h, i, h2, h3, t; -#ifdef VERIFY secp256k1_gej_verify(a); secp256k1_gej_verify(b); -#endif if (a->infinity) { VERIFY_CHECK(rzr == NULL); *r = *b; @@ -528,18 +466,14 @@ static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, cons secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, secp256k1_fe *rzr) { /* 8 mul, 3 sqr, 13 add/negate/normalize_weak/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z12, u1, u2, s1, s2, h, i, h2, h3, t; -#ifdef VERIFY secp256k1_gej_verify(a); secp256k1_ge_verify(b); -#endif if (a->infinity) { VERIFY_CHECK(rzr == NULL); secp256k1_gej_set_ge(r, b); @@ -592,20 +526,16 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); -#ifdef VERIFY secp256k1_gej_verify(r); if (rzr != NULL) secp256k1_fe_verify(rzr); -#endif } static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, const secp256k1_fe *bzinv) { /* 9 mul, 3 sqr, 13 add/negate/normalize_weak/normalizes_to_zero (ignoring special cases) */ secp256k1_fe az, z12, u1, u2, s1, s2, h, i, h2, h3, t; -#ifdef VERIFY secp256k1_ge_verify(b); secp256k1_fe_verify(bzinv); -#endif if (a->infinity) { secp256k1_fe bzinv2, bzinv3; r->infinity = b->infinity; @@ -664,9 +594,7 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } @@ -675,10 +603,8 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_fe zz, u1, u2, s1, s2, t, tt, m, n, q, rr; secp256k1_fe m_alt, rr_alt; int degenerate; -#ifdef VERIFY secp256k1_gej_verify(a); secp256k1_ge_verify(b); -#endif VERIFY_CHECK(!b->infinity); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); @@ -804,34 +730,26 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const * We have degenerate = false, r->z = (y1 + y2) * Z. * Then r->infinity = ((y1 + y2)Z == 0) = (y1 == -y2) = false. */ r->infinity = secp256k1_fe_normalizes_to_zero(&r->z); -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *s) { /* Operations: 4 mul, 1 sqr */ secp256k1_fe zz; -#ifdef VERIFY secp256k1_gej_verify(r); secp256k1_fe_verify(s); -#endif VERIFY_CHECK(!secp256k1_fe_is_zero(s)); secp256k1_fe_sqr(&zz, s); secp256k1_fe_mul(&r->x, &r->x, &zz); /* r->x *= s^2 */ secp256k1_fe_mul(&r->y, &r->y, &zz); secp256k1_fe_mul(&r->y, &r->y, s); /* r->y *= s^3 */ secp256k1_fe_mul(&r->z, &r->z, s); /* r->z *= s */ -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static void secp256k1_ge_to_storage(secp256k1_ge_storage *r, const secp256k1_ge *a) { secp256k1_fe x, y; -#ifdef VERIFY secp256k1_ge_verify(a); -#endif VERIFY_CHECK(!a->infinity); x = a->x; secp256k1_fe_normalize(&x); @@ -845,24 +763,18 @@ static void secp256k1_ge_from_storage(secp256k1_ge *r, const secp256k1_ge_storag secp256k1_fe_from_storage(&r->x, &a->x); secp256k1_fe_from_storage(&r->y, &a->y); r->infinity = 0; -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static SECP256K1_INLINE void secp256k1_gej_cmov(secp256k1_gej *r, const secp256k1_gej *a, int flag) { -#ifdef VERIFY secp256k1_gej_verify(r); secp256k1_gej_verify(a); -#endif secp256k1_fe_cmov(&r->x, &a->x, flag); secp256k1_fe_cmov(&r->y, &a->y, flag); secp256k1_fe_cmov(&r->z, &a->z, flag); r->infinity ^= (r->infinity ^ a->infinity) & flag; -#ifdef VERIFY secp256k1_gej_verify(r); -#endif } static SECP256K1_INLINE void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, const secp256k1_ge_storage *a, int flag) { @@ -872,13 +784,9 @@ static SECP256K1_INLINE void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, static void secp256k1_ge_mul_lambda(secp256k1_ge *r, const secp256k1_ge *a) { *r = *a; -#ifdef VERIFY secp256k1_ge_verify(a); -#endif secp256k1_fe_mul(&r->x, &r->x, &secp256k1_const_beta); -#ifdef VERIFY secp256k1_ge_verify(r); -#endif } static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { @@ -886,9 +794,7 @@ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { secp256k1_gej out; int i; -#ifdef VERIFY secp256k1_ge_verify(ge); -#endif /* A very simple EC multiplication ladder that avoids a dependency on ecmult. */ secp256k1_gej_set_infinity(&out); for (i = 0; i < 32; ++i) { From bbc834467c5d14e3e53744211e7c4fa9d8fabe41 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 9 May 2023 13:10:56 -0400 Subject: [PATCH 078/557] Avoid secp256k1_ge_set_gej_zinv with uninitialized z --- src/group_impl.h | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/src/group_impl.h b/src/group_impl.h index 48357a1c5d..f1b62e3689 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -92,12 +92,26 @@ static void secp256k1_gej_verify(const secp256k1_gej *a) { (void)a; } +/* Set r to the affine coordinates of Jacobian point (a.x, a.y, 1/zi). */ static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi) { secp256k1_fe zi2; secp256k1_fe zi3; - /* Do not call secp256k1_ge_verify, as we do not require a->z to be initialized. */ - secp256k1_fe_verify(&a->x); - secp256k1_fe_verify(&a->y); + secp256k1_gej_verify(a); + secp256k1_fe_verify(zi); + VERIFY_CHECK(!a->infinity); + secp256k1_fe_sqr(&zi2, zi); + secp256k1_fe_mul(&zi3, &zi2, zi); + secp256k1_fe_mul(&r->x, &a->x, &zi2); + secp256k1_fe_mul(&r->y, &a->y, &zi3); + r->infinity = a->infinity; + secp256k1_ge_verify(r); +} + +/* Set r to the affine coordinates of Jacobian point (a.x, a.y, 1/zi). */ +static void secp256k1_ge_set_ge_zinv(secp256k1_ge *r, const secp256k1_ge *a, const secp256k1_fe *zi) { + secp256k1_fe zi2; + secp256k1_fe zi3; + secp256k1_ge_verify(a); secp256k1_fe_verify(zi); VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&zi2, zi); @@ -221,7 +235,6 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se /* Work our way backwards, using the z-ratios to scale the x/y values. */ while (i > 0) { - secp256k1_gej tmpa; /* Verify all inputs a[i] and zr[i]. */ secp256k1_fe_verify(&zr[i]); secp256k1_ge_verify(&a[i]); @@ -229,10 +242,7 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se secp256k1_fe_mul(&zs, &zs, &zr[i]); } i--; - tmpa.x = a[i].x; - tmpa.y = a[i].y; - tmpa.infinity = 0; - secp256k1_ge_set_gej_zinv(&a[i], &tmpa, &zs); + secp256k1_ge_set_ge_zinv(&a[i], &a[i], &zs); /* Verify the output a[i]. */ secp256k1_ge_verify(&a[i]); } From 6ec3731e8c53658fcf68634c81bb1e47cad791ad Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 10 May 2023 10:40:08 -0400 Subject: [PATCH 079/557] Simplify test PRNG implementation --- src/testrand_impl.h | 65 ++++++++++++--------------------------------- 1 file changed, 17 insertions(+), 48 deletions(-) diff --git a/src/testrand_impl.h b/src/testrand_impl.h index 1b7481a53b..fe97620435 100644 --- a/src/testrand_impl.h +++ b/src/testrand_impl.h @@ -16,8 +16,6 @@ #include "util.h" static uint64_t secp256k1_test_state[4]; -static uint64_t secp256k1_test_rng_integer; -static int secp256k1_test_rng_integer_bits_left = 0; SECP256K1_INLINE static void secp256k1_testrand_seed(const unsigned char *seed16) { static const unsigned char PREFIX[19] = "secp256k1 test init"; @@ -36,7 +34,6 @@ SECP256K1_INLINE static void secp256k1_testrand_seed(const unsigned char *seed16 for (j = 0; j < 8; ++j) s = (s << 8) | out32[8*i + j]; secp256k1_test_state[i] = s; } - secp256k1_test_rng_integer_bits_left = 0; } SECP256K1_INLINE static uint64_t rotl(const uint64_t x, int k) { @@ -57,58 +54,30 @@ SECP256K1_INLINE static uint64_t secp256k1_testrand64(void) { } SECP256K1_INLINE static uint64_t secp256k1_testrand_bits(int bits) { - uint64_t ret; - if (secp256k1_test_rng_integer_bits_left < bits) { - secp256k1_test_rng_integer = secp256k1_testrand64(); - secp256k1_test_rng_integer_bits_left = 64; - } - ret = secp256k1_test_rng_integer; - secp256k1_test_rng_integer >>= bits; - secp256k1_test_rng_integer_bits_left -= bits; - ret &= ((~((uint64_t)0)) >> (64 - bits)); - return ret; + if (bits == 0) return 0; + return secp256k1_testrand64() >> (64 - bits); } SECP256K1_INLINE static uint32_t secp256k1_testrand32(void) { - return secp256k1_testrand_bits(32); + return secp256k1_testrand64() >> 32; } static uint32_t secp256k1_testrand_int(uint32_t range) { - /* We want a uniform integer between 0 and range-1, inclusive. - * B is the smallest number such that range <= 2**B. - * two mechanisms implemented here: - * - generate B bits numbers until one below range is found, and return it - * - find the largest multiple M of range that is <= 2**(B+A), generate B+A - * bits numbers until one below M is found, and return it modulo range - * The second mechanism consumes A more bits of entropy in every iteration, - * but may need fewer iterations due to M being closer to 2**(B+A) then - * range is to 2**B. The array below (indexed by B) contains a 0 when the - * first mechanism is to be used, and the number A otherwise. - */ - static const int addbits[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0}; - uint32_t trange, mult; - int bits = 0; - if (range <= 1) { - return 0; - } - trange = range - 1; - while (trange > 0) { - trange >>= 1; - bits++; + uint32_t mask = 0; + uint32_t range_copy; + /* Reduce range by 1, changing its meaning to "maximum value". */ + VERIFY_CHECK(range != 0); + range -= 1; + /* Count the number of bits in range. */ + range_copy = range; + while (range_copy) { + mask = (mask << 1) | 1U; + range_copy >>= 1; } - if (addbits[bits]) { - bits = bits + addbits[bits]; - mult = ((~((uint32_t)0)) >> (32 - bits)) / range; - trange = range * mult; - } else { - trange = range; - mult = 1; - } - while(1) { - uint32_t x = secp256k1_testrand_bits(bits); - if (x < trange) { - return (mult == 1) ? x : (x % range); - } + /* Generation loop. */ + while (1) { + uint32_t val = secp256k1_testrand64() & mask; + if (val <= range) return val; } } From 97c63b90390b0b11a5d3530b03855ec9cc0de343 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 9 May 2023 13:52:16 -0400 Subject: [PATCH 080/557] Avoid normalize conditional on VERIFY --- src/ecmult_impl.h | 3 --- src/group_impl.h | 4 +++- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index a9a63850ef..6f0152a879 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -279,9 +279,6 @@ static void secp256k1_ecmult_strauss_wnaf(const struct secp256k1_strauss_state * */ tmp = a[np]; if (no) { -#ifdef VERIFY - secp256k1_fe_normalize_var(&Z); -#endif secp256k1_gej_rescale(&tmp, &Z); } secp256k1_ecmult_odd_multiples_table(ECMULT_TABLE_SIZE(WINDOW_A), state->pre_a + no * ECMULT_TABLE_SIZE(WINDOW_A), state->aux + no * ECMULT_TABLE_SIZE(WINDOW_A), &Z, &tmp); diff --git a/src/group_impl.h b/src/group_impl.h index f1b62e3689..44d98434ca 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -748,7 +748,9 @@ static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *s) { secp256k1_fe zz; secp256k1_gej_verify(r); secp256k1_fe_verify(s); - VERIFY_CHECK(!secp256k1_fe_is_zero(s)); +#ifdef VERIFY + VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(s)); +#endif secp256k1_fe_sqr(&zz, s); secp256k1_fe_mul(&r->x, &r->x, &zz); /* r->x *= s^2 */ secp256k1_fe_mul(&r->y, &r->y, &zz); From b29566c51b2a47139d610bf686e09ae9f9d24001 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 17:39:30 -0500 Subject: [PATCH 081/557] Merge magnitude/normalized fields, move/improve comments Also split secp256k1_fe_verify into a generic and an implementation specific part. --- src/field.h | 45 +++++++++++++++++++++++++++++++----------- src/field_10x26.h | 27 ++++++++++++++++++------- src/field_10x26_impl.h | 17 ++-------------- src/field_5x52.h | 27 ++++++++++++++++++------- src/field_5x52_impl.h | 23 ++------------------- src/field_impl.h | 18 +++++++++++++++++ 6 files changed, 96 insertions(+), 61 deletions(-) diff --git a/src/field.h b/src/field.h index dca75aac10..28ebe85ac1 100644 --- a/src/field.h +++ b/src/field.h @@ -7,19 +7,36 @@ #ifndef SECP256K1_FIELD_H #define SECP256K1_FIELD_H -/** Field element module. - * - * Field elements can be represented in several ways, but code accessing - * it (and implementations) need to take certain properties into account: - * - Each field element can be normalized or not. - * - Each field element has a magnitude, which represents how far away - * its representation is away from normalization. Normalized elements - * always have a magnitude of 0 or 1, but a magnitude of 1 doesn't - * imply normality. - */ - #include "util.h" +/* This file defines the generic interface for working with secp256k1_fe + * objects, which represent field elements (integers modulo 2^256 - 2^32 - 977). + * + * The actual definition of the secp256k1_fe type depends on the chosen field + * implementation; see the field_5x52.h and field_10x26.h files for details. + * + * All secp256k1_fe objects have implicit properties that determine what + * operations are permitted on it. These are purely a function of what + * secp256k1_fe_ operations are applied on it, generally (implicitly) fixed at + * compile time, and do not depend on the chosen field implementation. Despite + * that, what these properties actually entail for the field representation + * values depends on the chosen field implementation. These properties are: + * - magnitude: an integer in [0,32] + * - normalized: 0 or 1; normalized=1 implies magnitude <= 1. + * + * In VERIFY mode, they are materialized explicitly as fields in the struct, + * allowing run-time verification of these properties. In that case, the field + * implementation also provides a secp256k1_fe_verify routine to verify that + * these fields match the run-time value and perform internal consistency + * checks. */ +#ifdef VERIFY +# define SECP256K1_FE_VERIFY_FIELDS \ + int magnitude; \ + int normalized; +#else +# define SECP256K1_FE_VERIFY_FIELDS +#endif + #if defined(SECP256K1_WIDEMUL_INT128) #include "field_5x52.h" #elif defined(SECP256K1_WIDEMUL_INT64) @@ -34,6 +51,12 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( 0x9cf04975ul, 0x12f58995ul, 0xc1396c28ul, 0x719501eeul ); +#ifndef VERIFY +/* In non-VERIFY mode, we #define the fe operations to be identical to their + * internal field implementation, to avoid the potential overhead of a + * function call (even though presumably inlinable). */ +#endif /* !defined(VERIFY) */ + /** Normalize a field element. This brings the field element to a canonical representation, reduces * its magnitude to 1, and reduces it modulo field size `p`. */ diff --git a/src/field_10x26.h b/src/field_10x26.h index 9eb65607f1..4fe36d08e2 100644 --- a/src/field_10x26.h +++ b/src/field_10x26.h @@ -9,15 +9,28 @@ #include +/** This field implementation represents the value as 10 uint32_t limbs in base + * 2^26. */ typedef struct { - /* X = sum(i=0..9, n[i]*2^(i*26)) mod p - * where p = 2^256 - 0x1000003D1 - */ + /* A field element f represents the sum(i=0..9, f.n[i] << (i*26)) mod p, + * where p is the field modulus, 2^256 - 2^32 - 977. + * + * The individual limbs f.n[i] can exceed 2^26; the field's magnitude roughly + * corresponds to how much excess is allowed. The value + * sum(i=0..9, f.n[i] << (i*26)) may exceed p, unless the field element is + * normalized. */ uint32_t n[10]; -#ifdef VERIFY - int magnitude; - int normalized; -#endif + /* + * Magnitude m requires: + * n[i] <= 2 * m * (2^26 - 1) for i=0..8 + * n[9] <= 2 * m * (2^22 - 1) + * + * Normalized requires: + * n[i] <= (2^26 - 1) for i=0..8 + * sum(i=0..9, n[i] << (i*26)) < p + * (together these imply n[9] <= 2^22 - 1) + */ + SECP256K1_FE_VERIFY_FIELDS } secp256k1_fe; /* Unpacks a constant into a overlapping multi-limbed FE element. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index c164711757..8115f534ad 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -12,17 +12,8 @@ #include "field.h" #include "modinv32_impl.h" -/** See the comment at the top of field_5x52_impl.h for more details. - * - * Here, we represent field elements as 10 uint32_t's in base 2^26, least significant first, - * where limbs can contain >26 bits. - * A magnitude M means: - * - 2*M*(2^22-1) is the max (inclusive) of the most significant limb - * - 2*M*(2^26-1) is the max (inclusive) of the remaining limbs - */ - -static void secp256k1_fe_verify(const secp256k1_fe *a) { #ifdef VERIFY +static void secp256k1_fe_impl_verify(const secp256k1_fe *a) { const uint32_t *d = a->n; int m = a->normalized ? 1 : 2 * a->magnitude, r = 1; r &= (d[0] <= 0x3FFFFFFUL * m); @@ -35,10 +26,7 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { r &= (d[7] <= 0x3FFFFFFUL * m); r &= (d[8] <= 0x3FFFFFFUL * m); r &= (d[9] <= 0x03FFFFFUL * m); - r &= (a->magnitude >= 0); - r &= (a->magnitude <= 32); if (a->normalized) { - r &= (a->magnitude <= 1); if (r && (d[9] == 0x03FFFFFUL)) { uint32_t mid = d[8] & d[7] & d[6] & d[5] & d[4] & d[3] & d[2]; if (mid == 0x3FFFFFFUL) { @@ -47,9 +35,8 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { } } VERIFY_CHECK(r == 1); -#endif - (void)a; } +#endif static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { VERIFY_CHECK(m >= 0); diff --git a/src/field_5x52.h b/src/field_5x52.h index 50ee3f9ec9..e4646a56be 100644 --- a/src/field_5x52.h +++ b/src/field_5x52.h @@ -9,15 +9,28 @@ #include +/** This field implementation represents the value as 5 uint64_t limbs in base + * 2^52. */ typedef struct { - /* X = sum(i=0..4, n[i]*2^(i*52)) mod p - * where p = 2^256 - 0x1000003D1 - */ + /* A field element f represents the sum(i=0..4, f.n[i] << (i*52)) mod p, + * where p is the field modulus, 2^256 - 2^32 - 977. + * + * The individual limbs f.n[i] can exceed 2^52; the field's magnitude roughly + * corresponds to how much excess is allowed. The value + * sum(i=0..4, f.n[i] << (i*52)) may exceed p, unless the field element is + * normalized. */ uint64_t n[5]; -#ifdef VERIFY - int magnitude; - int normalized; -#endif + /* + * Magnitude m requires: + * n[i] <= 2 * m * (2^52 - 1) for i=0..3 + * n[4] <= 2 * m * (2^48 - 1) + * + * Normalized requires: + * n[i] <= (2^52 - 1) for i=0..3 + * sum(i=0..4, n[i] << (i*52)) < p + * (together these imply n[4] <= 2^48 - 1) + */ + SECP256K1_FE_VERIFY_FIELDS } secp256k1_fe; /* Unpacks a constant into a overlapping multi-limbed FE element. */ diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 9b9794c099..cd240577f7 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -18,23 +18,8 @@ #include "field_5x52_int128_impl.h" #endif -/** Implements arithmetic modulo FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFE FFFFFC2F, - * represented as 5 uint64_t's in base 2^52, least significant first. Note that the limbs are allowed to - * contain >52 bits each. - * - * Each field element has a 'magnitude' associated with it. Internally, a magnitude M means: - * - 2*M*(2^48-1) is the max (inclusive) of the most significant limb - * - 2*M*(2^52-1) is the max (inclusive) of the remaining limbs - * - * Operations have different rules for propagating magnitude to their outputs. If an operation takes a - * magnitude M as a parameter, that means the magnitude of input field elements can be at most M (inclusive). - * - * Each field element also has a 'normalized' flag. A field element is normalized if its magnitude is either - * 0 or 1, and its value is already reduced modulo the order of the field. - */ - -static void secp256k1_fe_verify(const secp256k1_fe *a) { #ifdef VERIFY +static void secp256k1_fe_impl_verify(const secp256k1_fe *a) { const uint64_t *d = a->n; int m = a->normalized ? 1 : 2 * a->magnitude, r = 1; /* secp256k1 'p' value defined in "Standards for Efficient Cryptography" (SEC2) 2.7.1. */ @@ -43,18 +28,14 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { r &= (d[2] <= 0xFFFFFFFFFFFFFULL * m); r &= (d[3] <= 0xFFFFFFFFFFFFFULL * m); r &= (d[4] <= 0x0FFFFFFFFFFFFULL * m); - r &= (a->magnitude >= 0); - r &= (a->magnitude <= 2048); if (a->normalized) { - r &= (a->magnitude <= 1); if (r && (d[4] == 0x0FFFFFFFFFFFFULL) && ((d[3] & d[2] & d[1]) == 0xFFFFFFFFFFFFFULL)) { r &= (d[0] < 0xFFFFEFFFFFC2FULL); } } VERIFY_CHECK(r == 1); -#endif - (void)a; } +#endif static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { VERIFY_CHECK(m >= 0); diff --git a/src/field_impl.h b/src/field_impl.h index 0a03076bbc..9920dfdb78 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -7,6 +7,7 @@ #ifndef SECP256K1_FIELD_IMPL_H #define SECP256K1_FIELD_IMPL_H +#include "field.h" #include "util.h" #if defined(SECP256K1_WIDEMUL_INT128) @@ -131,4 +132,21 @@ static int secp256k1_fe_sqrt(secp256k1_fe *r, const secp256k1_fe *a) { return secp256k1_fe_equal(&t1, a); } +#ifndef VERIFY +static void secp256k1_fe_verify(const secp256k1_fe *a) { (void)a; } +#else +static void secp256k1_fe_impl_verify(const secp256k1_fe *a); +static void secp256k1_fe_verify(const secp256k1_fe *a) { + /* Magnitude between 0 and 32. */ + int r = (a->magnitude >= 0) & (a->magnitude <= 32); + /* Normalized is 0 or 1. */ + r &= (a->normalized == 0) | (a->normalized == 1); + /* If normalized, magnitude must be 0 or 1. */ + if (a->normalized) r &= (a->magnitude <= 1); + VERIFY_CHECK(r == 1); + /* Invoke implementation-specific checks. */ + secp256k1_fe_impl_verify(a); +} +#endif /* defined(VERIFY) */ + #endif /* SECP256K1_FIELD_IMPL_H */ From e5cf4bf3ff9aac5b5897a8a9852cfbb84da0bfb1 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 11 May 2023 10:03:23 +0100 Subject: [PATCH 082/557] build: Rename `arm` to `arm32` --- .cirrus.yml | 2 +- CMakeLists.txt | 10 +++++----- configure.ac | 14 +++++++------- src/CMakeLists.txt | 2 +- 4 files changed, 14 insertions(+), 14 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 592500371b..1560dc7d64 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -176,7 +176,7 @@ task: CTIMETESTS: no matrix: - env: {} - - env: {EXPERIMENTAL: yes, ASM: arm} + - env: {EXPERIMENTAL: yes, ASM: arm32} << : *MERGE_BASE test_script: - ./ci/cirrus.sh diff --git a/CMakeLists.txt b/CMakeLists.txt index cb3b4b510a..a1d9eb36e3 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -102,10 +102,10 @@ if(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) endif() mark_as_advanced(FORCE SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) -set(SECP256K1_ASM "AUTO" CACHE STRING "Assembly optimizations to use: \"AUTO\", \"OFF\", \"x86_64\" or \"arm\" (experimental). [default=AUTO]") -set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm") +set(SECP256K1_ASM "AUTO" CACHE STRING "Assembly optimizations to use: \"AUTO\", \"OFF\", \"x86_64\" or \"arm32\" (experimental). [default=AUTO]") +set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm32") check_string_option_value(SECP256K1_ASM) -if(SECP256K1_ASM STREQUAL "arm") +if(SECP256K1_ASM STREQUAL "arm32") enable_language(ASM) add_compile_definitions(USE_EXTERNAL_ASM=1) elseif(SECP256K1_ASM) @@ -123,8 +123,8 @@ endif() option(SECP256K1_EXPERIMENTAL "Allow experimental configuration options." OFF) if(NOT SECP256K1_EXPERIMENTAL) - if(SECP256K1_ASM STREQUAL "arm") - message(FATAL_ERROR "ARM assembly optimization is experimental. Use -DSECP256K1_EXPERIMENTAL=ON to allow.") + if(SECP256K1_ASM STREQUAL "arm32") + message(FATAL_ERROR "ARM32 assembly optimization is experimental. Use -DSECP256K1_EXPERIMENTAL=ON to allow.") endif() endif() diff --git a/configure.ac b/configure.ac index 6bf5b573dd..0b99aa3a98 100644 --- a/configure.ac +++ b/configure.ac @@ -197,8 +197,8 @@ AC_ARG_ENABLE(external_default_callbacks, # * and auto (the default). AC_ARG_WITH([test-override-wide-multiply], [] ,[set_widemul=$withval], [set_widemul=auto]) -AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm|no|auto], -[assembly optimizations to use (experimental: arm) [default=auto]])],[req_asm=$withval], [req_asm=auto]) +AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm32|no|auto], +[assembly optimizations to use (experimental: arm32) [default=auto]])],[req_asm=$withval], [req_asm=auto]) AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE|auto], [window size for ecmult precomputation for verification, specified as integer in range [2..24].] @@ -279,7 +279,7 @@ else AC_MSG_ERROR([x86_64 assembly optimization requested but not available]) fi ;; - arm) + arm32) ;; no) ;; @@ -296,7 +296,7 @@ case $set_asm in x86_64) SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DUSE_ASM_X86_64=1" ;; -arm) +arm32) enable_external_asm=yes ;; no) @@ -413,8 +413,8 @@ if test x"$enable_experimental" = x"yes"; then AC_MSG_NOTICE([Experimental features do not have stable APIs or properties, and may not be safe for production use.]) AC_MSG_NOTICE([******]) else - if test x"$set_asm" = x"arm"; then - AC_MSG_ERROR([ARM assembly optimization is experimental. Use --enable-experimental to allow.]) + if test x"$set_asm" = x"arm32"; then + AC_MSG_ERROR([ARM32 assembly optimization is experimental. Use --enable-experimental to allow.]) fi fi @@ -436,7 +436,7 @@ AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"ye AM_CONDITIONAL([ENABLE_MODULE_EXTRAKEYS], [test x"$enable_module_extrakeys" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_SCHNORRSIG], [test x"$enable_module_schnorrsig" = x"yes"]) AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$enable_external_asm" = x"yes"]) -AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm"]) +AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm32"]) AM_CONDITIONAL([BUILD_WINDOWS], [test "$build_windows" = "yes"]) AC_SUBST(LIB_VERSION_CURRENT, _LIB_VERSION_CURRENT) AC_SUBST(LIB_VERSION_REVISION, _LIB_VERSION_REVISION) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index ad8c1a93ba..93844caa7f 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -11,7 +11,7 @@ add_library(secp256k1_precomputed OBJECT EXCLUDE_FROM_ALL add_library(secp256k1 secp256k1.c $) add_library(secp256k1_asm INTERFACE) -if(SECP256K1_ASM STREQUAL "arm") +if(SECP256K1_ASM STREQUAL "arm32") add_library(secp256k1_asm_arm OBJECT EXCLUDE_FROM_ALL) target_sources(secp256k1_asm_arm PUBLIC asm/field_10x26_arm.s From 7fa51955592ccf4fb424a7a538372ad159e77293 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 1 Feb 2022 11:15:09 -0500 Subject: [PATCH 083/557] Bugfix: correct SECP256K1_FE_CONST mag/norm fields --- src/field.h | 20 ++++++++++++++++++++ src/field_10x26.h | 6 ------ src/field_5x52.h | 6 ------ 3 files changed, 20 insertions(+), 12 deletions(-) diff --git a/src/field.h b/src/field.h index 28ebe85ac1..3914f6b47a 100644 --- a/src/field.h +++ b/src/field.h @@ -45,6 +45,26 @@ #error "Please select wide multiplication implementation" #endif +#ifdef VERIFY +/* Magnitude and normalized value for constants. */ +#define SECP256K1_FE_VERIFY_CONST(d7, d6, d5, d4, d3, d2, d1, d0) \ + /* Magnitude is 0 for constant 0; 1 otherwise. */ \ + , (((d7) | (d6) | (d5) | (d4) | (d3) | (d2) | (d1) | (d0)) != 0) \ + /* Normalized is 1 unless sum(d_i<<(32*i) for i=0..7) exceeds field modulus. */ \ + , (!(((d7) & (d6) & (d5) & (d4) & (d3) & (d2)) == 0xfffffffful && ((d1) == 0xfffffffful || ((d1) == 0xfffffffe && (d0 >= 0xfffffc2f))))) +#else +#define SECP256K1_FE_VERIFY_CONST(d7, d6, d5, d4, d3, d2, d1, d0) +#endif + +/** This expands to an initializer for a secp256k1_fe valued sum((i*32) * d_i, i=0..7) mod p. + * + * It has magnitude 1, unless d_i are all 0, in which case the magnitude is 0. + * It is normalized, unless sum(2^(i*32) * d_i, i=0..7) >= p. + * + * SECP256K1_FE_CONST_INNER is provided by the implementation. + */ +#define SECP256K1_FE_CONST(d7, d6, d5, d4, d3, d2, d1, d0) {SECP256K1_FE_CONST_INNER((d7), (d6), (d5), (d4), (d3), (d2), (d1), (d0)) SECP256K1_FE_VERIFY_CONST((d7), (d6), (d5), (d4), (d3), (d2), (d1), (d0)) } + static const secp256k1_fe secp256k1_fe_one = SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 1); static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( 0x7ae96a2bul, 0x657c0710ul, 0x6e64479eul, 0xac3434e9ul, diff --git a/src/field_10x26.h b/src/field_10x26.h index 4fe36d08e2..203c10167c 100644 --- a/src/field_10x26.h +++ b/src/field_10x26.h @@ -47,12 +47,6 @@ typedef struct { (((uint32_t)d7) >> 10) \ } -#ifdef VERIFY -#define SECP256K1_FE_CONST(d7, d6, d5, d4, d3, d2, d1, d0) {SECP256K1_FE_CONST_INNER((d7), (d6), (d5), (d4), (d3), (d2), (d1), (d0)), 1, 1} -#else -#define SECP256K1_FE_CONST(d7, d6, d5, d4, d3, d2, d1, d0) {SECP256K1_FE_CONST_INNER((d7), (d6), (d5), (d4), (d3), (d2), (d1), (d0))} -#endif - typedef struct { uint32_t n[8]; } secp256k1_fe_storage; diff --git a/src/field_5x52.h b/src/field_5x52.h index e4646a56be..f20c246fdd 100644 --- a/src/field_5x52.h +++ b/src/field_5x52.h @@ -42,12 +42,6 @@ typedef struct { ((uint64_t)(d6) >> 16) | (((uint64_t)(d7)) << 16) \ } -#ifdef VERIFY -#define SECP256K1_FE_CONST(d7, d6, d5, d4, d3, d2, d1, d0) {SECP256K1_FE_CONST_INNER((d7), (d6), (d5), (d4), (d3), (d2), (d1), (d0)), 1, 1} -#else -#define SECP256K1_FE_CONST(d7, d6, d5, d4, d3, d2, d1, d0) {SECP256K1_FE_CONST_INNER((d7), (d6), (d5), (d4), (d3), (d2), (d1), (d0))} -#endif - typedef struct { uint64_t n[4]; } secp256k1_fe_storage; From b6b6f9cb97f6c9313871c278ec73f209ef537a44 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 17:51:12 -0500 Subject: [PATCH 084/557] Abstract out verify logic for fe_normalize --- src/field.h | 7 +++++-- src/field_10x26_impl.h | 8 +------- src/field_5x52_impl.h | 8 +------- src/field_impl.h | 9 +++++++++ 4 files changed, 16 insertions(+), 16 deletions(-) diff --git a/src/field.h b/src/field.h index 3914f6b47a..161df2b3ed 100644 --- a/src/field.h +++ b/src/field.h @@ -75,10 +75,13 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( /* In non-VERIFY mode, we #define the fe operations to be identical to their * internal field implementation, to avoid the potential overhead of a * function call (even though presumably inlinable). */ +# define secp256k1_fe_normalize secp256k1_fe_impl_normalize #endif /* !defined(VERIFY) */ -/** Normalize a field element. This brings the field element to a canonical representation, reduces - * its magnitude to 1, and reduces it modulo field size `p`. +/** Normalize a field element. + * + * On input, r must be a valid field element. + * On output, r represents the same value but has normalized=1 and magnitude=1. */ static void secp256k1_fe_normalize(secp256k1_fe *r); diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 8115f534ad..537000a8d1 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -58,7 +58,7 @@ static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { #endif } -static void secp256k1_fe_normalize(secp256k1_fe *r) { +static void secp256k1_fe_impl_normalize(secp256k1_fe *r) { uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4], t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9]; @@ -105,12 +105,6 @@ static void secp256k1_fe_normalize(secp256k1_fe *r) { r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9; - -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index cd240577f7..820bc3466f 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -52,7 +52,7 @@ static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { #endif } -static void secp256k1_fe_normalize(secp256k1_fe *r) { +static void secp256k1_fe_impl_normalize(secp256k1_fe *r) { uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4]; /* Reduce t4 at the start so there will be at most a single carry from the first pass */ @@ -87,12 +87,6 @@ static void secp256k1_fe_normalize(secp256k1_fe *r) { t4 &= 0x0FFFFFFFFFFFFULL; r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; - -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { diff --git a/src/field_impl.h b/src/field_impl.h index 9920dfdb78..f3341db0e4 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -147,6 +147,15 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { /* Invoke implementation-specific checks. */ secp256k1_fe_impl_verify(a); } + +static void secp256k1_fe_impl_normalize(secp256k1_fe *r); +SECP256K1_INLINE static void secp256k1_fe_normalize(secp256k1_fe *r) { + secp256k1_fe_verify(r); + secp256k1_fe_impl_normalize(r); + r->magnitude = 1; + r->normalized = 1; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From e28b51f52254b93805350354567a944ca4d79ae2 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 17:54:22 -0500 Subject: [PATCH 085/557] Abstract out verify logic for fe_normalize_weak --- src/field.h | 7 ++++++- src/field_10x26_impl.h | 7 +------ src/field_5x52_impl.h | 7 +------ src/field_impl.h | 8 ++++++++ 4 files changed, 16 insertions(+), 13 deletions(-) diff --git a/src/field.h b/src/field.h index 161df2b3ed..ba2d57bba9 100644 --- a/src/field.h +++ b/src/field.h @@ -76,6 +76,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( * internal field implementation, to avoid the potential overhead of a * function call (even though presumably inlinable). */ # define secp256k1_fe_normalize secp256k1_fe_impl_normalize +# define secp256k1_fe_normalize_weak secp256k1_fe_impl_normalize_weak #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -85,7 +86,11 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( */ static void secp256k1_fe_normalize(secp256k1_fe *r); -/** Weakly normalize a field element: reduce its magnitude to 1, but don't fully normalize. */ +/** Give a field element magnitude 1. + * + * On input, r must be a valid field element. + * On output, r represents the same value but has magnitude=1. Normalized is unchanged. + */ static void secp256k1_fe_normalize_weak(secp256k1_fe *r); /** Normalize a field element, without constant-time guarantee. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 537000a8d1..b76111641c 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -107,7 +107,7 @@ static void secp256k1_fe_impl_normalize(secp256k1_fe *r) { r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9; } -static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { +static void secp256k1_fe_impl_normalize_weak(secp256k1_fe *r) { uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4], t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9]; @@ -131,11 +131,6 @@ static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9; - -#ifdef VERIFY - r->magnitude = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_normalize_var(secp256k1_fe *r) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 820bc3466f..09f3d74900 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -89,7 +89,7 @@ static void secp256k1_fe_impl_normalize(secp256k1_fe *r) { r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; } -static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { +static void secp256k1_fe_impl_normalize_weak(secp256k1_fe *r) { uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4]; /* Reduce t4 at the start so there will be at most a single carry from the first pass */ @@ -106,11 +106,6 @@ static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { VERIFY_CHECK(t4 >> 49 == 0); r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; - -#ifdef VERIFY - r->magnitude = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_normalize_var(secp256k1_fe *r) { diff --git a/src/field_impl.h b/src/field_impl.h index f3341db0e4..3928e417c6 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -156,6 +156,14 @@ SECP256K1_INLINE static void secp256k1_fe_normalize(secp256k1_fe *r) { r->normalized = 1; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_normalize_weak(secp256k1_fe *r); +SECP256K1_INLINE static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { + secp256k1_fe_verify(r); + secp256k1_fe_impl_normalize_weak(r); + r->magnitude = 1; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 6c31371120bb85a397bf1caa73fd1c9b8405d35e Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 17:59:36 -0500 Subject: [PATCH 086/557] Abstract out verify logic for fe_normalize_var --- src/field.h | 6 +++++- src/field_10x26_impl.h | 8 +------- src/field_5x52_impl.h | 8 +------- src/field_impl.h | 9 +++++++++ 4 files changed, 16 insertions(+), 15 deletions(-) diff --git a/src/field.h b/src/field.h index ba2d57bba9..cae92b5866 100644 --- a/src/field.h +++ b/src/field.h @@ -77,6 +77,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( * function call (even though presumably inlinable). */ # define secp256k1_fe_normalize secp256k1_fe_impl_normalize # define secp256k1_fe_normalize_weak secp256k1_fe_impl_normalize_weak +# define secp256k1_fe_normalize_var secp256k1_fe_impl_normalize_var #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -93,7 +94,10 @@ static void secp256k1_fe_normalize(secp256k1_fe *r); */ static void secp256k1_fe_normalize_weak(secp256k1_fe *r); -/** Normalize a field element, without constant-time guarantee. */ +/** Normalize a field element, without constant-time guarantee. + * + * Identical in behavior to secp256k1_fe_normalize, but not constant time in r. + */ static void secp256k1_fe_normalize_var(secp256k1_fe *r); /** Verify whether a field element represents zero i.e. would normalize to a zero value. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index b76111641c..7043da3dea 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -133,7 +133,7 @@ static void secp256k1_fe_impl_normalize_weak(secp256k1_fe *r) { r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9; } -static void secp256k1_fe_normalize_var(secp256k1_fe *r) { +static void secp256k1_fe_impl_normalize_var(secp256k1_fe *r) { uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4], t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9]; @@ -181,12 +181,6 @@ static void secp256k1_fe_normalize_var(secp256k1_fe *r) { r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9; - -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 09f3d74900..6594972def 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -108,7 +108,7 @@ static void secp256k1_fe_impl_normalize_weak(secp256k1_fe *r) { r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; } -static void secp256k1_fe_normalize_var(secp256k1_fe *r) { +static void secp256k1_fe_impl_normalize_var(secp256k1_fe *r) { uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4]; /* Reduce t4 at the start so there will be at most a single carry from the first pass */ @@ -144,12 +144,6 @@ static void secp256k1_fe_normalize_var(secp256k1_fe *r) { } r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; - -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { diff --git a/src/field_impl.h b/src/field_impl.h index 3928e417c6..414e3e188c 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -164,6 +164,15 @@ SECP256K1_INLINE static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { r->magnitude = 1; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_normalize_var(secp256k1_fe *r); +SECP256K1_INLINE static void secp256k1_fe_normalize_var(secp256k1_fe *r) { + secp256k1_fe_verify(r); + secp256k1_fe_impl_normalize_var(r); + r->magnitude = 1; + r->normalized = 1; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 864f9db491b4e1204fda5168174b235f9eefb56e Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 31 Jan 2022 16:51:10 -0500 Subject: [PATCH 087/557] Abstract out verify logic for fe_normalizes_to_zero{,_var} --- src/field.h | 14 +++++++++++--- src/field_10x26_impl.h | 4 ++-- src/field_5x52_impl.h | 4 ++-- src/field_impl.h | 12 ++++++++++++ 4 files changed, 27 insertions(+), 7 deletions(-) diff --git a/src/field.h b/src/field.h index cae92b5866..8db62a92eb 100644 --- a/src/field.h +++ b/src/field.h @@ -78,6 +78,8 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_normalize secp256k1_fe_impl_normalize # define secp256k1_fe_normalize_weak secp256k1_fe_impl_normalize_weak # define secp256k1_fe_normalize_var secp256k1_fe_impl_normalize_var +# define secp256k1_fe_normalizes_to_zero secp256k1_fe_impl_normalizes_to_zero +# define secp256k1_fe_normalizes_to_zero_var secp256k1_fe_impl_normalizes_to_zero_var #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -100,11 +102,17 @@ static void secp256k1_fe_normalize_weak(secp256k1_fe *r); */ static void secp256k1_fe_normalize_var(secp256k1_fe *r); -/** Verify whether a field element represents zero i.e. would normalize to a zero value. */ +/** Determine whether r represents field element 0. + * + * On input, r must be a valid field element. + * Returns whether r = 0 (mod p). + */ static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r); -/** Verify whether a field element represents zero i.e. would normalize to a zero value, - * without constant-time guarantee. */ +/** Determine whether r represents field element 0, without constant-time guarantee. + * + * Identical in behavior to secp256k1_normalizes_to_zero, but not constant time in r. + */ static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r); /** Set a field element equal to a small (not greater than 0x7FFF), non-negative integer. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 7043da3dea..e107bee8a8 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -183,7 +183,7 @@ static void secp256k1_fe_impl_normalize_var(secp256k1_fe *r) { r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9; } -static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { +static int secp256k1_fe_impl_normalizes_to_zero(const secp256k1_fe *r) { uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4], t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9]; @@ -212,7 +212,7 @@ static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { return (z0 == 0) | (z1 == 0x3FFFFFFUL); } -static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r) { +static int secp256k1_fe_impl_normalizes_to_zero_var(const secp256k1_fe *r) { uint32_t t0, t1, t2, t3, t4, t5, t6, t7, t8, t9; uint32_t z0, z1; uint32_t x; diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 6594972def..1a8960ff1e 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -146,7 +146,7 @@ static void secp256k1_fe_impl_normalize_var(secp256k1_fe *r) { r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4; } -static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { +static int secp256k1_fe_impl_normalizes_to_zero(const secp256k1_fe *r) { uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4]; /* z0 tracks a possible raw value of 0, z1 tracks a possible raw value of P */ @@ -169,7 +169,7 @@ static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { return (z0 == 0) | (z1 == 0xFFFFFFFFFFFFFULL); } -static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r) { +static int secp256k1_fe_impl_normalizes_to_zero_var(const secp256k1_fe *r) { uint64_t t0, t1, t2, t3, t4; uint64_t z0, z1; uint64_t x; diff --git a/src/field_impl.h b/src/field_impl.h index 414e3e188c..ae54693859 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -173,6 +173,18 @@ SECP256K1_INLINE static void secp256k1_fe_normalize_var(secp256k1_fe *r) { r->normalized = 1; secp256k1_fe_verify(r); } + +static int secp256k1_fe_impl_normalizes_to_zero(const secp256k1_fe *r); +SECP256K1_INLINE static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { + secp256k1_fe_verify(r); + return secp256k1_fe_impl_normalizes_to_zero(r); +} + +static int secp256k1_fe_impl_normalizes_to_zero_var(const secp256k1_fe *r); +SECP256K1_INLINE static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r) { + secp256k1_fe_verify(r); + return secp256k1_fe_impl_normalizes_to_zero_var(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 19a2bfeeeac4274bbeca7f8757a2ee73bdf03895 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:04:15 -0500 Subject: [PATCH 088/557] Abstract out verify logic for fe_set_int --- src/field.h | 7 +++++-- src/field_10x26_impl.h | 8 +------- src/field_5x52_impl.h | 8 +------- src/field_impl.h | 9 +++++++++ 4 files changed, 16 insertions(+), 16 deletions(-) diff --git a/src/field.h b/src/field.h index 8db62a92eb..e841f14ee0 100644 --- a/src/field.h +++ b/src/field.h @@ -80,6 +80,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_normalize_var secp256k1_fe_impl_normalize_var # define secp256k1_fe_normalizes_to_zero secp256k1_fe_impl_normalizes_to_zero # define secp256k1_fe_normalizes_to_zero_var secp256k1_fe_impl_normalizes_to_zero_var +# define secp256k1_fe_set_int secp256k1_fe_impl_set_int #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -115,8 +116,10 @@ static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r); */ static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r); -/** Set a field element equal to a small (not greater than 0x7FFF), non-negative integer. - * Resulting field element is normalized; it has magnitude 0 if a == 0, and magnitude 1 otherwise. +/** Set a field element to an integer in range [0,0x7FFF]. + * + * On input, r does not need to be initialized, a must be in [0,0x7FFF]. + * On output, r represents value a, is normalized and has magnitude (a!=0). */ static void secp256k1_fe_set_int(secp256k1_fe *r, int a); diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index e107bee8a8..70be960f8a 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -264,15 +264,9 @@ static int secp256k1_fe_impl_normalizes_to_zero_var(const secp256k1_fe *r) { return (z0 == 0) | (z1 == 0x3FFFFFFUL); } -SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe *r, int a) { - VERIFY_CHECK(0 <= a && a <= 0x7FFF); +SECP256K1_INLINE static void secp256k1_fe_impl_set_int(secp256k1_fe *r, int a) { r->n[0] = a; r->n[1] = r->n[2] = r->n[3] = r->n[4] = r->n[5] = r->n[6] = r->n[7] = r->n[8] = r->n[9] = 0; -#ifdef VERIFY - r->magnitude = (a != 0); - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 1a8960ff1e..c735257f53 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -210,15 +210,9 @@ static int secp256k1_fe_impl_normalizes_to_zero_var(const secp256k1_fe *r) { return (z0 == 0) | (z1 == 0xFFFFFFFFFFFFFULL); } -SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe *r, int a) { - VERIFY_CHECK(0 <= a && a <= 0x7FFF); +SECP256K1_INLINE static void secp256k1_fe_impl_set_int(secp256k1_fe *r, int a) { r->n[0] = a; r->n[1] = r->n[2] = r->n[3] = r->n[4] = 0; -#ifdef VERIFY - r->magnitude = (a != 0); - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { diff --git a/src/field_impl.h b/src/field_impl.h index ae54693859..0083aabc8d 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -185,6 +185,15 @@ SECP256K1_INLINE static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_ secp256k1_fe_verify(r); return secp256k1_fe_impl_normalizes_to_zero_var(r); } + +static void secp256k1_fe_impl_set_int(secp256k1_fe *r, int a); +SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe *r, int a) { + VERIFY_CHECK(0 <= a && a <= 0x7FFF); + secp256k1_fe_impl_set_int(r, a); + r->magnitude = (a != 0); + r->normalized = 1; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From c701d9a4719adff20fa83511f946e4abbd4d8cda Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 31 Jan 2022 17:15:41 -0500 Subject: [PATCH 089/557] Abstract out verify logic for fe_clear --- src/field.h | 7 ++++++- src/field_10x26_impl.h | 6 +----- src/field_5x52_impl.h | 6 +----- src/field_impl.h | 8 ++++++++ 4 files changed, 16 insertions(+), 11 deletions(-) diff --git a/src/field.h b/src/field.h index e841f14ee0..f6f3fa9f17 100644 --- a/src/field.h +++ b/src/field.h @@ -81,6 +81,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_normalizes_to_zero secp256k1_fe_impl_normalizes_to_zero # define secp256k1_fe_normalizes_to_zero_var secp256k1_fe_impl_normalizes_to_zero_var # define secp256k1_fe_set_int secp256k1_fe_impl_set_int +# define secp256k1_fe_clear secp256k1_fe_impl_clear #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -123,7 +124,11 @@ static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r); */ static void secp256k1_fe_set_int(secp256k1_fe *r, int a); -/** Sets a field element equal to zero, initializing all fields. */ +/** Set a field element to 0. + * + * On input, a does not need to be initialized. + * On output, a represents 0, is normalized and has magnitude 0. + */ static void secp256k1_fe_clear(secp256k1_fe *a); /** Verify whether a field element is zero. Requires the input to be normalized. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 70be960f8a..7fc9993e00 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -286,12 +286,8 @@ SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe *a) { return a->n[0] & 1; } -SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { +SECP256K1_INLINE static void secp256k1_fe_impl_clear(secp256k1_fe *a) { int i; -#ifdef VERIFY - a->magnitude = 0; - a->normalized = 1; -#endif for (i=0; i<10; i++) { a->n[i] = 0; } diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index c735257f53..d2c4a6ba25 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -232,12 +232,8 @@ SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe *a) { return a->n[0] & 1; } -SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { +SECP256K1_INLINE static void secp256k1_fe_impl_clear(secp256k1_fe *a) { int i; -#ifdef VERIFY - a->magnitude = 0; - a->normalized = 1; -#endif for (i=0; i<5; i++) { a->n[i] = 0; } diff --git a/src/field_impl.h b/src/field_impl.h index 0083aabc8d..0eccf75023 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -194,6 +194,14 @@ SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe *r, int a) { r->normalized = 1; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_clear(secp256k1_fe *a); +SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { + a->magnitude = 0; + a->normalized = 1; + secp256k1_fe_impl_clear(a); + secp256k1_fe_verify(a); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From d3f3fe8616d02bd1c62376c1318be69c64eea982 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:07:55 -0500 Subject: [PATCH 090/557] Abstract out verify logic for fe_is_zero --- src/field.h | 10 +++++++++- src/field_10x26_impl.h | 6 +----- src/field_5x52_impl.h | 6 +----- src/field_impl.h | 7 +++++++ 4 files changed, 18 insertions(+), 11 deletions(-) diff --git a/src/field.h b/src/field.h index f6f3fa9f17..c057472c28 100644 --- a/src/field.h +++ b/src/field.h @@ -82,6 +82,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_normalizes_to_zero_var secp256k1_fe_impl_normalizes_to_zero_var # define secp256k1_fe_set_int secp256k1_fe_impl_set_int # define secp256k1_fe_clear secp256k1_fe_impl_clear +# define secp256k1_fe_is_zero secp256k1_fe_impl_is_zero #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -131,7 +132,14 @@ static void secp256k1_fe_set_int(secp256k1_fe *r, int a); */ static void secp256k1_fe_clear(secp256k1_fe *a); -/** Verify whether a field element is zero. Requires the input to be normalized. */ +/** Determine whether a represents field element 0. + * + * On input, a must be a valid normalized field element. + * Returns whether a = 0 (mod p). + * + * This behaves identical to secp256k1_normalizes_to_zero{,_var}, but requires + * normalized input (and is much faster). + */ static int secp256k1_fe_is_zero(const secp256k1_fe *a); /** Check the "oddness" of a field element. Requires the input to be normalized. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 7fc9993e00..5e934c438c 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -269,12 +269,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_set_int(secp256k1_fe *r, int a) { r->n[1] = r->n[2] = r->n[3] = r->n[4] = r->n[5] = r->n[6] = r->n[7] = r->n[8] = r->n[9] = 0; } -SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { +SECP256K1_INLINE static int secp256k1_fe_impl_is_zero(const secp256k1_fe *a) { const uint32_t *t = a->n; -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - secp256k1_fe_verify(a); -#endif return (t[0] | t[1] | t[2] | t[3] | t[4] | t[5] | t[6] | t[7] | t[8] | t[9]) == 0; } diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index d2c4a6ba25..0572d77bec 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -215,12 +215,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_set_int(secp256k1_fe *r, int a) { r->n[1] = r->n[2] = r->n[3] = r->n[4] = 0; } -SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { +SECP256K1_INLINE static int secp256k1_fe_impl_is_zero(const secp256k1_fe *a) { const uint64_t *t = a->n; -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - secp256k1_fe_verify(a); -#endif return (t[0] | t[1] | t[2] | t[3] | t[4]) == 0; } diff --git a/src/field_impl.h b/src/field_impl.h index 0eccf75023..8c85134057 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -202,6 +202,13 @@ SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { secp256k1_fe_impl_clear(a); secp256k1_fe_verify(a); } + +static int secp256k1_fe_impl_is_zero(const secp256k1_fe *a); +SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { + secp256k1_fe_verify(a); + VERIFY_CHECK(a->normalized); + return secp256k1_fe_impl_is_zero(a); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From c5e788d672d78315e7269fd3743eadae6428468e Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:11:21 -0500 Subject: [PATCH 091/557] Abstract out verify logic for fe_is_odd --- src/field.h | 7 ++++++- src/field_10x26_impl.h | 6 +----- src/field_5x52_impl.h | 6 +----- src/field_impl.h | 7 +++++++ 4 files changed, 15 insertions(+), 11 deletions(-) diff --git a/src/field.h b/src/field.h index c057472c28..9e517dca80 100644 --- a/src/field.h +++ b/src/field.h @@ -83,6 +83,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_set_int secp256k1_fe_impl_set_int # define secp256k1_fe_clear secp256k1_fe_impl_clear # define secp256k1_fe_is_zero secp256k1_fe_impl_is_zero +# define secp256k1_fe_is_odd secp256k1_fe_impl_is_odd #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -142,7 +143,11 @@ static void secp256k1_fe_clear(secp256k1_fe *a); */ static int secp256k1_fe_is_zero(const secp256k1_fe *a); -/** Check the "oddness" of a field element. Requires the input to be normalized. */ +/** Determine whether a (mod p) is odd. + * + * On input, a must be a valid normalized field element. + * Returns (int(a) mod p) & 1. + */ static int secp256k1_fe_is_odd(const secp256k1_fe *a); /** Compare two field elements. Requires magnitude-1 inputs. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 5e934c438c..e7305abb3e 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -274,11 +274,7 @@ SECP256K1_INLINE static int secp256k1_fe_impl_is_zero(const secp256k1_fe *a) { return (t[0] | t[1] | t[2] | t[3] | t[4] | t[5] | t[6] | t[7] | t[8] | t[9]) == 0; } -SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - secp256k1_fe_verify(a); -#endif +SECP256K1_INLINE static int secp256k1_fe_impl_is_odd(const secp256k1_fe *a) { return a->n[0] & 1; } diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 0572d77bec..31c3bcb7a6 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -220,11 +220,7 @@ SECP256K1_INLINE static int secp256k1_fe_impl_is_zero(const secp256k1_fe *a) { return (t[0] | t[1] | t[2] | t[3] | t[4]) == 0; } -SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - secp256k1_fe_verify(a); -#endif +SECP256K1_INLINE static int secp256k1_fe_impl_is_odd(const secp256k1_fe *a) { return a->n[0] & 1; } diff --git a/src/field_impl.h b/src/field_impl.h index 8c85134057..bd6982033c 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -209,6 +209,13 @@ SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { VERIFY_CHECK(a->normalized); return secp256k1_fe_impl_is_zero(a); } + +static int secp256k1_fe_impl_is_odd(const secp256k1_fe *a); +SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe *a) { + secp256k1_fe_verify(a); + VERIFY_CHECK(a->normalized); + return secp256k1_fe_impl_is_odd(a); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 7d7d43c6dd2741853de4631881d77ae38a14cd23 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 31 Jan 2022 17:34:36 -0500 Subject: [PATCH 092/557] Improve comments/check for fe_equal{,_var} --- src/field.h | 12 ++++++++++-- src/field_impl.h | 12 ++++++++++++ 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/src/field.h b/src/field.h index 9e517dca80..e7b64e78eb 100644 --- a/src/field.h +++ b/src/field.h @@ -150,10 +150,18 @@ static int secp256k1_fe_is_zero(const secp256k1_fe *a); */ static int secp256k1_fe_is_odd(const secp256k1_fe *a); -/** Compare two field elements. Requires magnitude-1 inputs. */ +/** Determine whether two field elements are equal. + * + * On input, a and b must be valid field elements with magnitudes not exceeding + * 1 and 31, respectively. + * Returns a = b (mod p). + */ static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b); -/** Same as secp256k1_fe_equal, but may be variable time. */ +/** Determine whether two field elements are equal, without constant-time guarantee. + * + * Identical in behavior to secp256k1_fe_equal, but not constant time in either a or b. + */ static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b); /** Compare two field elements. Requires both inputs to be normalized */ diff --git a/src/field_impl.h b/src/field_impl.h index bd6982033c..dae82aa67e 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -20,6 +20,12 @@ SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { secp256k1_fe na; +#ifdef VERIFY + secp256k1_fe_verify(a); + secp256k1_fe_verify(b); + VERIFY_CHECK(a->magnitude <= 1); + VERIFY_CHECK(b->magnitude <= 31); +#endif secp256k1_fe_negate(&na, a, 1); secp256k1_fe_add(&na, b); return secp256k1_fe_normalizes_to_zero(&na); @@ -27,6 +33,12 @@ SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe *a, const secp SECP256K1_INLINE static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b) { secp256k1_fe na; +#ifdef VERIFY + secp256k1_fe_verify(a); + secp256k1_fe_verify(b); + VERIFY_CHECK(a->magnitude <= 1); + VERIFY_CHECK(b->magnitude <= 31); +#endif secp256k1_fe_negate(&na, a, 1); secp256k1_fe_add(&na, b); return secp256k1_fe_normalizes_to_zero_var(&na); From ce4d2093e86fedca676dbbe59b50bdcf8c599704 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:16:16 -0500 Subject: [PATCH 093/557] Abstract out verify logic for fe_cmp_var --- src/field.h | 8 +++++++- src/field_10x26_impl.h | 8 +------- src/field_5x52_impl.h | 8 +------- src/field_impl.h | 9 +++++++++ 4 files changed, 18 insertions(+), 15 deletions(-) diff --git a/src/field.h b/src/field.h index e7b64e78eb..4145d89c80 100644 --- a/src/field.h +++ b/src/field.h @@ -84,6 +84,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_clear secp256k1_fe_impl_clear # define secp256k1_fe_is_zero secp256k1_fe_impl_is_zero # define secp256k1_fe_is_odd secp256k1_fe_impl_is_odd +# define secp256k1_fe_cmp_var secp256k1_fe_impl_cmp_var #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -164,7 +165,12 @@ static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b); */ static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b); -/** Compare two field elements. Requires both inputs to be normalized */ +/** Compare the values represented by 2 field elements, without constant-time guarantee. + * + * On input, a and b must be valid normalized field elements. + * Returns 1 if a > b, -1 if a < b, and 0 if a = b (comparisons are done as integers + * in range 0..p-1). + */ static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); /** Set a field element equal to 32-byte big endian value. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index e7305abb3e..a7a0186b71 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -285,14 +285,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_clear(secp256k1_fe *a) { } } -static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { +static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { int i; -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - VERIFY_CHECK(b->normalized); - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); -#endif for (i = 9; i >= 0; i--) { if (a->n[i] > b->n[i]) { return 1; diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 31c3bcb7a6..b4af5d69a0 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -231,14 +231,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_clear(secp256k1_fe *a) { } } -static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { +static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { int i; -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - VERIFY_CHECK(b->normalized); - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); -#endif for (i = 4; i >= 0; i--) { if (a->n[i] > b->n[i]) { return 1; diff --git a/src/field_impl.h b/src/field_impl.h index dae82aa67e..4424ddb173 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -228,6 +228,15 @@ SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe *a) { VERIFY_CHECK(a->normalized); return secp256k1_fe_impl_is_odd(a); } + +static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); +SECP256K1_INLINE static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { + secp256k1_fe_verify(a); + secp256k1_fe_verify(b); + VERIFY_CHECK(a->normalized); + VERIFY_CHECK(b->normalized); + return secp256k1_fe_impl_cmp_var(a, b); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From f7a7666aeb8db92b9171f4765f7d405b7b73d946 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:19:00 -0500 Subject: [PATCH 094/557] Abstract out verify logic for fe_set_b32 --- src/field.h | 13 ++++++++++--- src/field_10x26_impl.h | 11 ++--------- src/field_5x52_impl.h | 11 ++--------- src/field_impl.h | 9 +++++++++ 4 files changed, 23 insertions(+), 21 deletions(-) diff --git a/src/field.h b/src/field.h index 4145d89c80..b1c434eaf6 100644 --- a/src/field.h +++ b/src/field.h @@ -85,6 +85,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_is_zero secp256k1_fe_impl_is_zero # define secp256k1_fe_is_odd secp256k1_fe_impl_is_odd # define secp256k1_fe_cmp_var secp256k1_fe_impl_cmp_var +# define secp256k1_fe_set_b32 secp256k1_fe_impl_set_b32 #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -173,9 +174,15 @@ static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b); */ static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); -/** Set a field element equal to 32-byte big endian value. - * Returns 1 if no overflow occurred, and then the output is normalized. - * Returns 0 if overflow occurred, and then the output is only weakly normalized. */ +/** Set a field element equal to a provided 32-byte big endian value. + * + * On input, r does not need to be initalized. a must be a pointer to an initialized 32-byte array. + * On output, r = a (mod p). It will have magnitude 1, and if (a < p), it will be normalized. + * If not, it will only be weakly normalized. Returns whether (a < p). + * + * Note that this function is unusual in that the normalization of the output depends on the + * run-time value of a. + */ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a); /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index a7a0186b71..5e0b65d652 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -298,8 +298,7 @@ static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe * return 0; } -static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { - int ret; +static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { r->n[0] = (uint32_t)a[31] | ((uint32_t)a[30] << 8) | ((uint32_t)a[29] << 16) | ((uint32_t)(a[28] & 0x3) << 24); r->n[1] = (uint32_t)((a[28] >> 2) & 0x3f) | ((uint32_t)a[27] << 6) | ((uint32_t)a[26] << 14) | ((uint32_t)(a[25] & 0xf) << 22); r->n[2] = (uint32_t)((a[25] >> 4) & 0xf) | ((uint32_t)a[24] << 4) | ((uint32_t)a[23] << 12) | ((uint32_t)(a[22] & 0x3f) << 20); @@ -311,13 +310,7 @@ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { r->n[8] = (uint32_t)a[5] | ((uint32_t)a[4] << 8) | ((uint32_t)a[3] << 16) | ((uint32_t)(a[2] & 0x3) << 24); r->n[9] = (uint32_t)((a[2] >> 2) & 0x3f) | ((uint32_t)a[1] << 6) | ((uint32_t)a[0] << 14); - ret = !((r->n[9] == 0x3FFFFFUL) & ((r->n[8] & r->n[7] & r->n[6] & r->n[5] & r->n[4] & r->n[3] & r->n[2]) == 0x3FFFFFFUL) & ((r->n[1] + 0x40UL + ((r->n[0] + 0x3D1UL) >> 26)) > 0x3FFFFFFUL)); -#ifdef VERIFY - r->magnitude = 1; - r->normalized = ret; - secp256k1_fe_verify(r); -#endif - return ret; + return !((r->n[9] == 0x3FFFFFUL) & ((r->n[8] & r->n[7] & r->n[6] & r->n[5] & r->n[4] & r->n[3] & r->n[2]) == 0x3FFFFFFUL) & ((r->n[1] + 0x40UL + ((r->n[0] + 0x3D1UL) >> 26)) > 0x3FFFFFFUL)); } /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */ diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index b4af5d69a0..b06b485b7f 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -244,8 +244,7 @@ static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe * return 0; } -static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { - int ret; +static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { r->n[0] = (uint64_t)a[31] | ((uint64_t)a[30] << 8) | ((uint64_t)a[29] << 16) @@ -280,13 +279,7 @@ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { | ((uint64_t)a[2] << 24) | ((uint64_t)a[1] << 32) | ((uint64_t)a[0] << 40); - ret = !((r->n[4] == 0x0FFFFFFFFFFFFULL) & ((r->n[3] & r->n[2] & r->n[1]) == 0xFFFFFFFFFFFFFULL) & (r->n[0] >= 0xFFFFEFFFFFC2FULL)); -#ifdef VERIFY - r->magnitude = 1; - r->normalized = ret; - secp256k1_fe_verify(r); -#endif - return ret; + return !((r->n[4] == 0x0FFFFFFFFFFFFULL) & ((r->n[3] & r->n[2] & r->n[1]) == 0xFFFFFFFFFFFFFULL) & (r->n[0] >= 0xFFFFEFFFFFC2FULL)); } /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */ diff --git a/src/field_impl.h b/src/field_impl.h index 4424ddb173..304c428cb7 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -237,6 +237,15 @@ SECP256K1_INLINE static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const se VERIFY_CHECK(b->normalized); return secp256k1_fe_impl_cmp_var(a, b); } + +static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a); +SECP256K1_INLINE static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { + int ret = secp256k1_fe_impl_set_b32(r, a); + r->magnitude = 1; + r->normalized = ret; + secp256k1_fe_verify(r); + return ret; +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 144670893eccd84d638951f6c5bae43fc97e3c7b Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:23:54 -0500 Subject: [PATCH 095/557] Abstract out verify logic for fe_get_b32 --- src/field.h | 6 +++++- src/field_10x26_impl.h | 6 +----- src/field_5x52_impl.h | 6 +----- src/field_impl.h | 7 +++++++ 4 files changed, 14 insertions(+), 11 deletions(-) diff --git a/src/field.h b/src/field.h index b1c434eaf6..327e63fc96 100644 --- a/src/field.h +++ b/src/field.h @@ -86,6 +86,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_is_odd secp256k1_fe_impl_is_odd # define secp256k1_fe_cmp_var secp256k1_fe_impl_cmp_var # define secp256k1_fe_set_b32 secp256k1_fe_impl_set_b32 +# define secp256k1_fe_get_b32 secp256k1_fe_impl_get_b32 #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -185,7 +186,10 @@ static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); */ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a); -/** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */ +/** Convert a field element to 32-byte big endian byte array. + * On input, a must be a valid normalized field element, and r a pointer to a 32-byte array. + * On output, r = a (mod p). + */ static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a); /** Set a field element equal to the additive inverse of another. Takes a maximum magnitude of the input diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 5e0b65d652..c3f49c86eb 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -314,11 +314,7 @@ static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { } /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */ -static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - secp256k1_fe_verify(a); -#endif +static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a) { r[0] = (a->n[9] >> 14) & 0xff; r[1] = (a->n[9] >> 6) & 0xff; r[2] = ((a->n[9] & 0x3F) << 2) | ((a->n[8] >> 24) & 0x3); diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index b06b485b7f..0994087c56 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -283,11 +283,7 @@ static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { } /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */ -static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->normalized); - secp256k1_fe_verify(a); -#endif +static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a) { r[0] = (a->n[4] >> 40) & 0xFF; r[1] = (a->n[4] >> 32) & 0xFF; r[2] = (a->n[4] >> 24) & 0xFF; diff --git a/src/field_impl.h b/src/field_impl.h index 304c428cb7..a09c7a6be1 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -246,6 +246,13 @@ SECP256K1_INLINE static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned secp256k1_fe_verify(r); return ret; } + +static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a); +SECP256K1_INLINE static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a) { + secp256k1_fe_verify(a); + VERIFY_CHECK(a->normalized); + secp256k1_fe_impl_get_b32(r, a); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 65d82a3445265767375383a5b68b5f61aeadefca Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:27:38 -0500 Subject: [PATCH 096/557] Abstract out verify logic for fe_negate --- src/field.h | 10 ++++++++-- src/field_10x26_impl.h | 15 +++++---------- src/field_5x52_impl.h | 15 +++++---------- src/field_impl.h | 11 +++++++++++ 4 files changed, 29 insertions(+), 22 deletions(-) diff --git a/src/field.h b/src/field.h index 327e63fc96..b1bc4b979e 100644 --- a/src/field.h +++ b/src/field.h @@ -87,6 +87,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_cmp_var secp256k1_fe_impl_cmp_var # define secp256k1_fe_set_b32 secp256k1_fe_impl_set_b32 # define secp256k1_fe_get_b32 secp256k1_fe_impl_get_b32 +# define secp256k1_fe_negate secp256k1_fe_impl_negate #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -192,8 +193,13 @@ static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a); */ static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a); -/** Set a field element equal to the additive inverse of another. Takes a maximum magnitude of the input - * as an argument. The magnitude of the output is one higher. */ +/** Negate a field element. + * + * On input, r does not need to be initialized. a must be a valid field element with + * magnitude not exceeding m. m must be an integer in [0,31]. + * Performs {r = -a}. + * On output, r will not be normalized, and will have magnitude m+1. + */ static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m); /** Adds a small integer (up to 0x7FFF) to r. The resulting magnitude increases by one. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index c3f49c86eb..9e29f6adf9 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -349,15 +349,15 @@ static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a) { r[31] = a->n[0] & 0xff; } -SECP256K1_INLINE static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { -#ifdef VERIFY - VERIFY_CHECK(a->magnitude <= m); - secp256k1_fe_verify(a); +SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { + /* For all legal values of m (0..31), the following properties hold: */ VERIFY_CHECK(0x3FFFC2FUL * 2 * (m + 1) >= 0x3FFFFFFUL * 2 * m); VERIFY_CHECK(0x3FFFFBFUL * 2 * (m + 1) >= 0x3FFFFFFUL * 2 * m); VERIFY_CHECK(0x3FFFFFFUL * 2 * (m + 1) >= 0x3FFFFFFUL * 2 * m); VERIFY_CHECK(0x03FFFFFUL * 2 * (m + 1) >= 0x03FFFFFUL * 2 * m); -#endif + + /* Due to the properties above, the left hand in the subtractions below is never less than + * the right hand. */ r->n[0] = 0x3FFFC2FUL * 2 * (m + 1) - a->n[0]; r->n[1] = 0x3FFFFBFUL * 2 * (m + 1) - a->n[1]; r->n[2] = 0x3FFFFFFUL * 2 * (m + 1) - a->n[2]; @@ -368,11 +368,6 @@ SECP256K1_INLINE static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k r->n[7] = 0x3FFFFFFUL * 2 * (m + 1) - a->n[7]; r->n[8] = 0x3FFFFFFUL * 2 * (m + 1) - a->n[8]; r->n[9] = 0x03FFFFFUL * 2 * (m + 1) - a->n[9]; -#ifdef VERIFY - r->magnitude = m + 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 0994087c56..4775ee0cee 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -318,24 +318,19 @@ static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a) { r[31] = a->n[0] & 0xFF; } -SECP256K1_INLINE static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { -#ifdef VERIFY - VERIFY_CHECK(a->magnitude <= m); - secp256k1_fe_verify(a); +SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { + /* For all legal values of m (0..31), the following properties hold: */ VERIFY_CHECK(0xFFFFEFFFFFC2FULL * 2 * (m + 1) >= 0xFFFFFFFFFFFFFULL * 2 * m); VERIFY_CHECK(0xFFFFFFFFFFFFFULL * 2 * (m + 1) >= 0xFFFFFFFFFFFFFULL * 2 * m); VERIFY_CHECK(0x0FFFFFFFFFFFFULL * 2 * (m + 1) >= 0x0FFFFFFFFFFFFULL * 2 * m); -#endif + + /* Due to the properties above, the left hand in the subtractions below is never less than + * the right hand. */ r->n[0] = 0xFFFFEFFFFFC2FULL * 2 * (m + 1) - a->n[0]; r->n[1] = 0xFFFFFFFFFFFFFULL * 2 * (m + 1) - a->n[1]; r->n[2] = 0xFFFFFFFFFFFFFULL * 2 * (m + 1) - a->n[2]; r->n[3] = 0xFFFFFFFFFFFFFULL * 2 * (m + 1) - a->n[3]; r->n[4] = 0x0FFFFFFFFFFFFULL * 2 * (m + 1) - a->n[4]; -#ifdef VERIFY - r->magnitude = m + 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { diff --git a/src/field_impl.h b/src/field_impl.h index a09c7a6be1..1c70795169 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -253,6 +253,17 @@ SECP256K1_INLINE static void secp256k1_fe_get_b32(unsigned char *r, const secp25 VERIFY_CHECK(a->normalized); secp256k1_fe_impl_get_b32(r, a); } + +static void secp256k1_fe_impl_negate(secp256k1_fe *r, const secp256k1_fe *a, int m); +SECP256K1_INLINE static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { + secp256k1_fe_verify(a); + VERIFY_CHECK(m >= 0 && m <= 31); + VERIFY_CHECK(a->magnitude <= m); + secp256k1_fe_impl_negate(r, a, m); + r->magnitude = m + 1; + r->normalized = 0; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 7e7ad7ff570645304459242104406d6e1f79857c Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:33:45 -0500 Subject: [PATCH 097/557] Abstract out verify logic for fe_mul_int --- src/field.h | 10 ++++++++-- src/field_10x26_impl.h | 7 +------ src/field_5x52_impl.h | 7 +------ src/field_impl.h | 11 +++++++++++ 4 files changed, 21 insertions(+), 14 deletions(-) diff --git a/src/field.h b/src/field.h index b1bc4b979e..2c1e9d2e1a 100644 --- a/src/field.h +++ b/src/field.h @@ -88,6 +88,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_set_b32 secp256k1_fe_impl_set_b32 # define secp256k1_fe_get_b32 secp256k1_fe_impl_get_b32 # define secp256k1_fe_negate secp256k1_fe_impl_negate +# define secp256k1_fe_mul_int secp256k1_fe_impl_mul_int #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -205,8 +206,13 @@ static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m); /** Adds a small integer (up to 0x7FFF) to r. The resulting magnitude increases by one. */ static void secp256k1_fe_add_int(secp256k1_fe *r, int a); -/** Multiplies the passed field element with a small integer constant. Multiplies the magnitude by that - * small integer. */ +/** Multiply a field element with a small integer. + * + * On input, r must be a valid field element. a must be an integer in [0,32]. + * The magnitude of r times a must not exceed 32. + * Performs {r *= a}. + * On output, r's magnitude is multiplied by a, and r will not be normalized. + */ static void secp256k1_fe_mul_int(secp256k1_fe *r, int a); /** Adds a field element to another. The result has the sum of the inputs' magnitudes as magnitude. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 9e29f6adf9..f8c8ddb5b4 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -370,7 +370,7 @@ SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const sec r->n[9] = 0x03FFFFFUL * 2 * (m + 1) - a->n[9]; } -SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { +SECP256K1_INLINE static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a) { r->n[0] *= a; r->n[1] *= a; r->n[2] *= a; @@ -381,11 +381,6 @@ SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { r->n[7] *= a; r->n[8] *= a; r->n[9] *= a; -#ifdef VERIFY - r->magnitude *= a; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 4775ee0cee..f509137340 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -333,17 +333,12 @@ SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const sec r->n[4] = 0x0FFFFFFFFFFFFULL * 2 * (m + 1) - a->n[4]; } -SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { +SECP256K1_INLINE static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a) { r->n[0] *= a; r->n[1] *= a; r->n[2] *= a; r->n[3] *= a; r->n[4] *= a; -#ifdef VERIFY - r->magnitude *= a; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { diff --git a/src/field_impl.h b/src/field_impl.h index 1c70795169..8bd18c61ab 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -264,6 +264,17 @@ SECP256K1_INLINE static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k r->normalized = 0; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a); +SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { + secp256k1_fe_verify(r); + VERIFY_CHECK(a >= 0 && a <= 32); + VERIFY_CHECK(a*r->magnitude <= 32); + secp256k1_fe_impl_mul_int(r, a); + r->magnitude *= a; + r->normalized = 0; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From e179e651cbb20031905e01f37596e20ec2cb788a Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:36:13 -0500 Subject: [PATCH 098/557] Abstract out verify logic for fe_add --- src/field.h | 9 ++++++++- src/field_10x26_impl.h | 8 +------- src/field_5x52_impl.h | 8 +------- src/field_impl.h | 11 +++++++++++ 4 files changed, 21 insertions(+), 15 deletions(-) diff --git a/src/field.h b/src/field.h index 2c1e9d2e1a..988bc6f390 100644 --- a/src/field.h +++ b/src/field.h @@ -89,6 +89,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_get_b32 secp256k1_fe_impl_get_b32 # define secp256k1_fe_negate secp256k1_fe_impl_negate # define secp256k1_fe_mul_int secp256k1_fe_impl_mul_int +# define secp256k1_fe_add secp256k1_fe_impl_add #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -215,7 +216,13 @@ static void secp256k1_fe_add_int(secp256k1_fe *r, int a); */ static void secp256k1_fe_mul_int(secp256k1_fe *r, int a); -/** Adds a field element to another. The result has the sum of the inputs' magnitudes as magnitude. */ +/** Increment a field element by another. + * + * On input, r and a must be valid field elements, not necessarily normalized. + * The sum of their magnitudes must not exceed 32. + * Performs {r += a}. + * On output, r will not be normalized, and will have magnitude incremented by a's. + */ static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a); /** Sets a field element to be the product of two others. Requires the inputs' magnitudes to be at most 8. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index f8c8ddb5b4..eefd4da697 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -383,8 +383,7 @@ SECP256K1_INLINE static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a) { r->n[9] *= a; } -SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a) { - secp256k1_fe_verify(a); +SECP256K1_INLINE static void secp256k1_fe_impl_add(secp256k1_fe *r, const secp256k1_fe *a) { r->n[0] += a->n[0]; r->n[1] += a->n[1]; r->n[2] += a->n[2]; @@ -395,11 +394,6 @@ SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_f r->n[7] += a->n[7]; r->n[8] += a->n[8]; r->n[9] += a->n[9]; -#ifdef VERIFY - r->magnitude += a->magnitude; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index f509137340..8bd084ff27 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -353,18 +353,12 @@ SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { #endif } -SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a) { - secp256k1_fe_verify(a); +SECP256K1_INLINE static void secp256k1_fe_impl_add(secp256k1_fe *r, const secp256k1_fe *a) { r->n[0] += a->n[0]; r->n[1] += a->n[1]; r->n[2] += a->n[2]; r->n[3] += a->n[3]; r->n[4] += a->n[4]; -#ifdef VERIFY - r->magnitude += a->magnitude; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { diff --git a/src/field_impl.h b/src/field_impl.h index 8bd18c61ab..172b846d89 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -275,6 +275,17 @@ SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { r->normalized = 0; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_add(secp256k1_fe *r, const secp256k1_fe *a); +SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a) { + secp256k1_fe_verify(r); + secp256k1_fe_verify(a); + VERIFY_CHECK(r->magnitude + a->magnitude <= 32); + secp256k1_fe_impl_add(r, a); + r->magnitude += a->magnitude; + r->normalized = 0; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 4c25f6efbd5f8b4738c1c16daf73906d45c5f579 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:40:33 -0500 Subject: [PATCH 099/557] Abstract out verify logic for fe_mul --- src/field.h | 11 +++++++++-- src/field_10x26_impl.h | 15 +-------------- src/field_5x52_impl.h | 15 +-------------- src/field_impl.h | 14 ++++++++++++++ 4 files changed, 25 insertions(+), 30 deletions(-) diff --git a/src/field.h b/src/field.h index 988bc6f390..c301841b29 100644 --- a/src/field.h +++ b/src/field.h @@ -90,6 +90,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_negate secp256k1_fe_impl_negate # define secp256k1_fe_mul_int secp256k1_fe_impl_mul_int # define secp256k1_fe_add secp256k1_fe_impl_add +# define secp256k1_fe_mul secp256k1_fe_impl_mul #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -225,8 +226,14 @@ static void secp256k1_fe_mul_int(secp256k1_fe *r, int a); */ static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a); -/** Sets a field element to be the product of two others. Requires the inputs' magnitudes to be at most 8. - * The output magnitude is 1 (but not guaranteed to be normalized). */ +/** Multiply two field elements. + * + * On input, a and b must be valid field elements; r does not need to be initialized. + * r and a may point to the same object, but neither can be equal to b. The magnitudes + * of a and b must not exceed 8. + * Performs {r = a * b} + * On output, r will have magnitude 1, but won't be normalized. + */ static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b); /** Sets a field element to be the square of another. Requires the input's magnitude to be at most 8. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index eefd4da697..f2cc4ad1e3 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1027,21 +1027,8 @@ SECP256K1_INLINE static void secp256k1_fe_sqr_inner(uint32_t *r, const uint32_t } #endif -static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { -#ifdef VERIFY - VERIFY_CHECK(a->magnitude <= 8); - VERIFY_CHECK(b->magnitude <= 8); - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); - VERIFY_CHECK(r != b); - VERIFY_CHECK(a != b); -#endif +SECP256K1_INLINE static void secp256k1_fe_impl_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { secp256k1_fe_mul_inner(r->n, a->n, b->n); -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 8bd084ff27..adfac57778 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -361,21 +361,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_add(secp256k1_fe *r, const secp25 r->n[4] += a->n[4]; } -static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { -#ifdef VERIFY - VERIFY_CHECK(a->magnitude <= 8); - VERIFY_CHECK(b->magnitude <= 8); - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); - VERIFY_CHECK(r != b); - VERIFY_CHECK(a != b); -#endif +SECP256K1_INLINE static void secp256k1_fe_impl_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { secp256k1_fe_mul_inner(r->n, a->n, b->n); -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { diff --git a/src/field_impl.h b/src/field_impl.h index 172b846d89..0def1e57d5 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -286,6 +286,20 @@ SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_f r->normalized = 0; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b); +SECP256K1_INLINE static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { + secp256k1_fe_verify(a); + secp256k1_fe_verify(b); + VERIFY_CHECK(a->magnitude <= 8); + VERIFY_CHECK(b->magnitude <= 8); + VERIFY_CHECK(r != b); + VERIFY_CHECK(a != b); + secp256k1_fe_impl_mul(r, a, b); + r->magnitude = 1; + r->normalized = 0; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 6ab35082efe904cbb7ca5225134a1d3647e35388 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:42:47 -0500 Subject: [PATCH 100/557] Abstract out verify logic for fe_sqr --- src/field.h | 10 ++++++++-- src/field_10x26_impl.h | 11 +---------- src/field_5x52_impl.h | 11 +---------- src/field_impl.h | 10 ++++++++++ 4 files changed, 20 insertions(+), 22 deletions(-) diff --git a/src/field.h b/src/field.h index c301841b29..597c9fe338 100644 --- a/src/field.h +++ b/src/field.h @@ -91,6 +91,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_mul_int secp256k1_fe_impl_mul_int # define secp256k1_fe_add secp256k1_fe_impl_add # define secp256k1_fe_mul secp256k1_fe_impl_mul +# define secp256k1_fe_sqr secp256k1_fe_impl_sqr #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -236,8 +237,13 @@ static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a); */ static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b); -/** Sets a field element to be the square of another. Requires the input's magnitude to be at most 8. - * The output magnitude is 1 (but not guaranteed to be normalized). */ +/** Square a field element. + * + * On input, a must be a valid field element; r does not need to be initialized. The magnitude + * of a must not exceed 8. + * Performs {r = a**2} + * On output, r will have magnitude 1, but won't be normalized. + */ static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a); /** If a has a square root, it is computed in r and 1 is returned. If a does not diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index f2cc4ad1e3..f34f27bb3d 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1031,17 +1031,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_mul(secp256k1_fe *r, const secp25 secp256k1_fe_mul_inner(r->n, a->n, b->n); } -static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->magnitude <= 8); - secp256k1_fe_verify(a); -#endif +SECP256K1_INLINE static void secp256k1_fe_impl_sqr(secp256k1_fe *r, const secp256k1_fe *a) { secp256k1_fe_sqr_inner(r->n, a->n); -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index adfac57778..5e90218c94 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -365,17 +365,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_mul(secp256k1_fe *r, const secp25 secp256k1_fe_mul_inner(r->n, a->n, b->n); } -static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->magnitude <= 8); - secp256k1_fe_verify(a); -#endif +SECP256K1_INLINE static void secp256k1_fe_impl_sqr(secp256k1_fe *r, const secp256k1_fe *a) { secp256k1_fe_sqr_inner(r->n, a->n); -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { diff --git a/src/field_impl.h b/src/field_impl.h index 0def1e57d5..ff4c8eca18 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -300,6 +300,16 @@ SECP256K1_INLINE static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_f r->normalized = 0; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_sqr(secp256k1_fe *r, const secp256k1_fe *a); +SECP256K1_INLINE static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { + secp256k1_fe_verify(a); + VERIFY_CHECK(a->magnitude <= 8); + secp256k1_fe_impl_sqr(r, a); + r->magnitude = 1; + r->normalized = 0; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From be82bd8e0347e090037ff1d30a22a9d614db8c9f Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 31 Jan 2022 18:19:45 -0500 Subject: [PATCH 101/557] Improve comments/checks for fe_sqrt --- src/field.h | 14 ++++++++------ src/field_impl.h | 17 +++++++++++++++-- 2 files changed, 23 insertions(+), 8 deletions(-) diff --git a/src/field.h b/src/field.h index 597c9fe338..eb6c586b48 100644 --- a/src/field.h +++ b/src/field.h @@ -246,12 +246,14 @@ static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp2 */ static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a); -/** If a has a square root, it is computed in r and 1 is returned. If a does not - * have a square root, the root of its negation is computed and 0 is returned. - * The input's magnitude can be at most 8. The output magnitude is 1 (but not - * guaranteed to be normalized). The result in r will always be a square - * itself. */ -static int secp256k1_fe_sqrt(secp256k1_fe *r, const secp256k1_fe *a); +/** Compute a square root of a field element. + * + * On input, a must be a valid field element with magnitude<=8; r need not be initialized. + * Performs {r = sqrt(a)} or {r = sqrt(-a)}, whichever exists. The resulting value + * represented by r will be a square itself. Variables r and a must not point to the same object. + * On output, r will have magnitude 1 but will not be normalized. + */ +static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k1_fe * SECP256K1_RESTRICT a); /** Sets a field element to be the (modular) inverse of another. Requires the input's magnitude to be * at most 8. The output magnitude is 1 (but not guaranteed to be normalized). */ diff --git a/src/field_impl.h b/src/field_impl.h index ff4c8eca18..89ffc76cc5 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -55,9 +55,13 @@ static int secp256k1_fe_sqrt(secp256k1_fe *r, const secp256k1_fe *a) { * itself always a square (a ** ((p+1)/4) is the square of a ** ((p+1)/8)). */ secp256k1_fe x2, x3, x6, x9, x11, x22, x44, x88, x176, x220, x223, t1; - int j; + int j, ret; +#ifdef VERIFY VERIFY_CHECK(r != a); + secp256k1_fe_verify(a); + VERIFY_CHECK(a->magnitude <= 8); +#endif /** The binary representation of (p + 1)/4 has 3 blocks of 1s, with lengths in * { 2, 22, 223 }. Use an addition chain to calculate 2^n - 1 for each block: @@ -141,7 +145,16 @@ static int secp256k1_fe_sqrt(secp256k1_fe *r, const secp256k1_fe *a) { /* Check that a square root was actually calculated */ secp256k1_fe_sqr(&t1, r); - return secp256k1_fe_equal(&t1, a); + ret = secp256k1_fe_equal(&t1, a); + +#ifdef VERIFY + if (!ret) { + secp256k1_fe_negate(&t1, &t1, 1); + secp256k1_fe_normalize_var(&t1); + VERIFY_CHECK(secp256k1_fe_equal_var(&t1, a)); + } +#endif + return ret; } #ifndef VERIFY From 1e6894bdd74c0b94224f2891c9f5501ac7a3b87a Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:45:42 -0500 Subject: [PATCH 102/557] Abstract out verify logic for fe_cmov --- src/field.h | 8 +++++++- src/field_10x26_impl.h | 8 +------- src/field_5x52_impl.h | 8 +------- src/field_impl.h | 13 +++++++++++++ 4 files changed, 22 insertions(+), 15 deletions(-) diff --git a/src/field.h b/src/field.h index eb6c586b48..daa2c54066 100644 --- a/src/field.h +++ b/src/field.h @@ -92,6 +92,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_add secp256k1_fe_impl_add # define secp256k1_fe_mul secp256k1_fe_impl_mul # define secp256k1_fe_sqr secp256k1_fe_impl_sqr +# define secp256k1_fe_cmov secp256k1_fe_impl_cmov #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -271,7 +272,12 @@ static void secp256k1_fe_from_storage(secp256k1_fe *r, const secp256k1_fe_storag /** If flag is true, set *r equal to *a; otherwise leave it. Constant-time. Both *r and *a must be initialized.*/ static void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_fe_storage *a, int flag); -/** If flag is true, set *r equal to *a; otherwise leave it. Constant-time. Both *r and *a must be initialized.*/ +/** Conditionally move a field element in constant time. + * + * On input, both r and a must be valid field elements. Flag must be 0 or 1. + * Performs {r = flag ? a : r}. + * On output, r's magnitude and normalized will equal a's in case of flag=1, unchanged otherwise. + */ static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag); /** Halves the value of a field element modulo the field prime. Constant-time. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index f34f27bb3d..6219150170 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1035,7 +1035,7 @@ SECP256K1_INLINE static void secp256k1_fe_impl_sqr(secp256k1_fe *r, const secp25 secp256k1_fe_sqr_inner(r->n, a->n); } -static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { +SECP256K1_INLINE static void secp256k1_fe_impl_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { uint32_t mask0, mask1; volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->n, sizeof(r->n)); @@ -1051,12 +1051,6 @@ static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_ r->n[7] = (r->n[7] & mask0) | (a->n[7] & mask1); r->n[8] = (r->n[8] & mask0) | (a->n[8] & mask1); r->n[9] = (r->n[9] & mask0) | (a->n[9] & mask1); -#ifdef VERIFY - if (flag) { - r->magnitude = a->magnitude; - r->normalized = a->normalized; - } -#endif } static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 5e90218c94..6a90ef4c4d 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -369,7 +369,7 @@ SECP256K1_INLINE static void secp256k1_fe_impl_sqr(secp256k1_fe *r, const secp25 secp256k1_fe_sqr_inner(r->n, a->n); } -static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { +SECP256K1_INLINE static void secp256k1_fe_impl_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { uint64_t mask0, mask1; volatile int vflag = flag; SECP256K1_CHECKMEM_CHECK_VERIFY(r->n, sizeof(r->n)); @@ -380,12 +380,6 @@ static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_ r->n[2] = (r->n[2] & mask0) | (a->n[2] & mask1); r->n[3] = (r->n[3] & mask0) | (a->n[3] & mask1); r->n[4] = (r->n[4] & mask0) | (a->n[4] & mask1); -#ifdef VERIFY - if (flag) { - r->magnitude = a->magnitude; - r->normalized = a->normalized; - } -#endif } static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { diff --git a/src/field_impl.h b/src/field_impl.h index 89ffc76cc5..bb1608d25c 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -323,6 +323,19 @@ SECP256K1_INLINE static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_f r->normalized = 0; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag); +SECP256K1_INLINE static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { + VERIFY_CHECK(flag == 0 || flag == 1); + secp256k1_fe_verify(a); + secp256k1_fe_verify(r); + secp256k1_fe_impl_cmov(r, a, flag); + if (flag) { + r->magnitude = a->magnitude; + r->normalized = a->normalized; + } + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 76d31e5047c1d8dfb83b277421f11460f5126a03 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 18:56:54 -0500 Subject: [PATCH 103/557] Abstract out verify logic for fe_to_storage --- src/field.h | 7 ++++++- src/field_10x26_impl.h | 5 +---- src/field_5x52_impl.h | 5 +---- src/field_impl.h | 7 +++++++ 4 files changed, 15 insertions(+), 9 deletions(-) diff --git a/src/field.h b/src/field.h index daa2c54066..4928e256af 100644 --- a/src/field.h +++ b/src/field.h @@ -93,6 +93,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_mul secp256k1_fe_impl_mul # define secp256k1_fe_sqr secp256k1_fe_impl_sqr # define secp256k1_fe_cmov secp256k1_fe_impl_cmov +# define secp256k1_fe_to_storage secp256k1_fe_impl_to_storage #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -263,7 +264,11 @@ static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *a); /** Potentially faster version of secp256k1_fe_inv, without constant-time guarantee. */ static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *a); -/** Convert a field element to the storage type. */ +/** Convert a field element to secp256k1_fe_storage. + * + * On input, a must be a valid normalized field element. + * Performs {r = a}. + */ static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a); /** Convert a field element back from the storage type. */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 6219150170..b0676eb937 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1145,10 +1145,7 @@ static SECP256K1_INLINE void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, r->n[7] = (r->n[7] & mask0) | (a->n[7] & mask1); } -static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->normalized); -#endif +static void secp256k1_fe_impl_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a) { r->n[0] = a->n[0] | a->n[1] << 26; r->n[1] = a->n[1] >> 6 | a->n[2] << 20; r->n[2] = a->n[2] >> 12 | a->n[3] << 14; diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 6a90ef4c4d..d183b0bf7f 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -459,10 +459,7 @@ static SECP256K1_INLINE void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, r->n[3] = (r->n[3] & mask0) | (a->n[3] & mask1); } -static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a) { -#ifdef VERIFY - VERIFY_CHECK(a->normalized); -#endif +static void secp256k1_fe_impl_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a) { r->n[0] = a->n[0] | a->n[1] << 52; r->n[1] = a->n[1] >> 12 | a->n[2] << 40; r->n[2] = a->n[2] >> 24 | a->n[3] << 28; diff --git a/src/field_impl.h b/src/field_impl.h index bb1608d25c..fd0d56da25 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -336,6 +336,13 @@ SECP256K1_INLINE static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_ } secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a); +SECP256K1_INLINE static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a) { + secp256k1_fe_verify(a); + VERIFY_CHECK(a->normalized); + secp256k1_fe_impl_to_storage(r, a); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 316764607257084e714898e07234fdc53150b57a Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 19:02:03 -0500 Subject: [PATCH 104/557] Abstract out verify logic for fe_from_storage --- src/field.h | 8 +++++++- src/field_10x26_impl.h | 7 +------ src/field_5x52_impl.h | 7 +------ src/field_impl.h | 8 ++++++++ 4 files changed, 17 insertions(+), 13 deletions(-) diff --git a/src/field.h b/src/field.h index 4928e256af..cb330635dc 100644 --- a/src/field.h +++ b/src/field.h @@ -94,6 +94,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_sqr secp256k1_fe_impl_sqr # define secp256k1_fe_cmov secp256k1_fe_impl_cmov # define secp256k1_fe_to_storage secp256k1_fe_impl_to_storage +# define secp256k1_fe_from_storage secp256k1_fe_impl_from_storage #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -271,7 +272,12 @@ static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *a); */ static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a); -/** Convert a field element back from the storage type. */ +/** Convert a field element back from secp256k1_fe_storage. + * + * On input, r need not be initialized. + * Performs {r = a}. + * On output, r will be normalized and will have magnitude 1. + */ static void secp256k1_fe_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a); /** If flag is true, set *r equal to *a; otherwise leave it. Constant-time. Both *r and *a must be initialized.*/ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index b0676eb937..55d152ec26 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1156,7 +1156,7 @@ static void secp256k1_fe_impl_to_storage(secp256k1_fe_storage *r, const secp256k r->n[7] = a->n[8] >> 16 | a->n[9] << 10; } -static SECP256K1_INLINE void secp256k1_fe_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a) { +static SECP256K1_INLINE void secp256k1_fe_impl_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a) { r->n[0] = a->n[0] & 0x3FFFFFFUL; r->n[1] = a->n[0] >> 26 | ((a->n[1] << 6) & 0x3FFFFFFUL); r->n[2] = a->n[1] >> 20 | ((a->n[2] << 12) & 0x3FFFFFFUL); @@ -1167,11 +1167,6 @@ static SECP256K1_INLINE void secp256k1_fe_from_storage(secp256k1_fe *r, const se r->n[7] = a->n[5] >> 22 | ((a->n[6] << 10) & 0x3FFFFFFUL); r->n[8] = a->n[6] >> 16 | ((a->n[7] << 16) & 0x3FFFFFFUL); r->n[9] = a->n[7] >> 10; -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_from_signed30(secp256k1_fe *r, const secp256k1_modinv32_signed30 *a) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index d183b0bf7f..1946fbb88b 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -466,17 +466,12 @@ static void secp256k1_fe_impl_to_storage(secp256k1_fe_storage *r, const secp256k r->n[3] = a->n[3] >> 36 | a->n[4] << 16; } -static SECP256K1_INLINE void secp256k1_fe_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a) { +static SECP256K1_INLINE void secp256k1_fe_impl_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a) { r->n[0] = a->n[0] & 0xFFFFFFFFFFFFFULL; r->n[1] = a->n[0] >> 52 | ((a->n[1] << 12) & 0xFFFFFFFFFFFFFULL); r->n[2] = a->n[1] >> 40 | ((a->n[2] << 24) & 0xFFFFFFFFFFFFFULL); r->n[3] = a->n[2] >> 28 | ((a->n[3] << 36) & 0xFFFFFFFFFFFFFULL); r->n[4] = a->n[3] >> 16; -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_from_signed62(secp256k1_fe *r, const secp256k1_modinv64_signed62 *a) { diff --git a/src/field_impl.h b/src/field_impl.h index fd0d56da25..0e1c7630be 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -343,6 +343,14 @@ SECP256K1_INLINE static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, co VERIFY_CHECK(a->normalized); secp256k1_fe_impl_to_storage(r, a); } + +static void secp256k1_fe_impl_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a); +SECP256K1_INLINE static void secp256k1_fe_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a) { + secp256k1_fe_impl_from_storage(r, a); + r->magnitude = 1; + r->normalized = 1; + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From d5aa2f035802047c45605bfa69fb467000e9288f Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 28 Jan 2022 19:20:51 -0500 Subject: [PATCH 105/557] Abstract out verify logic for fe_inv{,_var} --- src/field.h | 16 +++++++++++++--- src/field_10x26_impl.h | 28 ++++------------------------ src/field_5x52_impl.h | 28 ++++------------------------ src/field_impl.h | 22 ++++++++++++++++++++++ 4 files changed, 43 insertions(+), 51 deletions(-) diff --git a/src/field.h b/src/field.h index cb330635dc..953919d9a3 100644 --- a/src/field.h +++ b/src/field.h @@ -95,6 +95,8 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_cmov secp256k1_fe_impl_cmov # define secp256k1_fe_to_storage secp256k1_fe_impl_to_storage # define secp256k1_fe_from_storage secp256k1_fe_impl_from_storage +# define secp256k1_fe_inv secp256k1_fe_impl_inv +# define secp256k1_fe_inv_var secp256k1_fe_impl_inv_var #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -258,11 +260,19 @@ static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a); */ static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k1_fe * SECP256K1_RESTRICT a); -/** Sets a field element to be the (modular) inverse of another. Requires the input's magnitude to be - * at most 8. The output magnitude is 1 (but not guaranteed to be normalized). */ +/** Compute the modular inverse of a field element. + * + * On input, a must be a valid field element; r need not be initialized. + * Performs {r = a**(p-2)} (which maps 0 to 0, and every other element to its + * inverse). + * On output, r will have magnitude (a.magnitude != 0) and be normalized. + */ static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *a); -/** Potentially faster version of secp256k1_fe_inv, without constant-time guarantee. */ +/** Compute the modular inverse of a field element, without constant-time guarantee. + * + * Behaves identically to secp256k1_fe_inv, but is not constant-time in a. + */ static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *a); /** Convert a field element to secp256k1_fe_storage. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 55d152ec26..d7b30cc87d 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1197,12 +1197,6 @@ static void secp256k1_fe_from_signed30(secp256k1_fe *r, const secp256k1_modinv32 r->n[7] = (a6 >> 2 ) & M26; r->n[8] = (a6 >> 28 | a7 << 2) & M26; r->n[9] = (a7 >> 24 | a8 << 6); - -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_to_signed30(secp256k1_modinv32_signed30 *r, const secp256k1_fe *a) { @@ -1210,10 +1204,6 @@ static void secp256k1_fe_to_signed30(secp256k1_modinv32_signed30 *r, const secp2 const uint64_t a0 = a->n[0], a1 = a->n[1], a2 = a->n[2], a3 = a->n[3], a4 = a->n[4], a5 = a->n[5], a6 = a->n[6], a7 = a->n[7], a8 = a->n[8], a9 = a->n[9]; -#ifdef VERIFY - VERIFY_CHECK(a->normalized); -#endif - r->v[0] = (a0 | a1 << 26) & M30; r->v[1] = (a1 >> 4 | a2 << 22) & M30; r->v[2] = (a2 >> 8 | a3 << 18) & M30; @@ -1231,34 +1221,24 @@ static const secp256k1_modinv32_modinfo secp256k1_const_modinfo_fe = { 0x2DDACACFL }; -static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *x) { - secp256k1_fe tmp; +static void secp256k1_fe_impl_inv(secp256k1_fe *r, const secp256k1_fe *x) { + secp256k1_fe tmp = *x; secp256k1_modinv32_signed30 s; - tmp = *x; secp256k1_fe_normalize(&tmp); secp256k1_fe_to_signed30(&s, &tmp); secp256k1_modinv32(&s, &secp256k1_const_modinfo_fe); secp256k1_fe_from_signed30(r, &s); - -#ifdef VERIFY - VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == secp256k1_fe_normalizes_to_zero(&tmp)); -#endif } -static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { - secp256k1_fe tmp; +static void secp256k1_fe_impl_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { + secp256k1_fe tmp = *x; secp256k1_modinv32_signed30 s; - tmp = *x; secp256k1_fe_normalize_var(&tmp); secp256k1_fe_to_signed30(&s, &tmp); secp256k1_modinv32_var(&s, &secp256k1_const_modinfo_fe); secp256k1_fe_from_signed30(r, &s); - -#ifdef VERIFY - VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == secp256k1_fe_normalizes_to_zero(&tmp)); -#endif } static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 1946fbb88b..e056cc2620 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -492,22 +492,12 @@ static void secp256k1_fe_from_signed62(secp256k1_fe *r, const secp256k1_modinv64 r->n[2] = (a1 >> 42 | a2 << 20) & M52; r->n[3] = (a2 >> 32 | a3 << 30) & M52; r->n[4] = (a3 >> 22 | a4 << 40); - -#ifdef VERIFY - r->magnitude = 1; - r->normalized = 1; - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_to_signed62(secp256k1_modinv64_signed62 *r, const secp256k1_fe *a) { const uint64_t M62 = UINT64_MAX >> 2; const uint64_t a0 = a->n[0], a1 = a->n[1], a2 = a->n[2], a3 = a->n[3], a4 = a->n[4]; -#ifdef VERIFY - VERIFY_CHECK(a->normalized); -#endif - r->v[0] = (a0 | a1 << 52) & M62; r->v[1] = (a1 >> 10 | a2 << 42) & M62; r->v[2] = (a2 >> 20 | a3 << 32) & M62; @@ -520,34 +510,24 @@ static const secp256k1_modinv64_modinfo secp256k1_const_modinfo_fe = { 0x27C7F6E22DDACACFLL }; -static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *x) { - secp256k1_fe tmp; +static void secp256k1_fe_impl_inv(secp256k1_fe *r, const secp256k1_fe *x) { + secp256k1_fe tmp = *x; secp256k1_modinv64_signed62 s; - tmp = *x; secp256k1_fe_normalize(&tmp); secp256k1_fe_to_signed62(&s, &tmp); secp256k1_modinv64(&s, &secp256k1_const_modinfo_fe); secp256k1_fe_from_signed62(r, &s); - -#ifdef VERIFY - VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == secp256k1_fe_normalizes_to_zero(&tmp)); -#endif } -static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { - secp256k1_fe tmp; +static void secp256k1_fe_impl_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { + secp256k1_fe tmp = *x; secp256k1_modinv64_signed62 s; - tmp = *x; secp256k1_fe_normalize_var(&tmp); secp256k1_fe_to_signed62(&s, &tmp); secp256k1_modinv64_var(&s, &secp256k1_const_modinfo_fe); secp256k1_fe_from_signed62(r, &s); - -#ifdef VERIFY - VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == secp256k1_fe_normalizes_to_zero(&tmp)); -#endif } static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { diff --git a/src/field_impl.h b/src/field_impl.h index 0e1c7630be..3c03e26352 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -351,6 +351,28 @@ SECP256K1_INLINE static void secp256k1_fe_from_storage(secp256k1_fe *r, const se r->normalized = 1; secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_inv(secp256k1_fe *r, const secp256k1_fe *x); +SECP256K1_INLINE static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *x) { + int input_is_zero = secp256k1_fe_normalizes_to_zero(x); + secp256k1_fe_verify(x); + secp256k1_fe_impl_inv(r, x); + r->magnitude = x->magnitude > 0; + r->normalized = 1; + VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == input_is_zero); + secp256k1_fe_verify(r); +} + +static void secp256k1_fe_impl_inv_var(secp256k1_fe *r, const secp256k1_fe *x); +SECP256K1_INLINE static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { + int input_is_zero = secp256k1_fe_normalizes_to_zero(x); + secp256k1_fe_verify(x); + secp256k1_fe_impl_inv_var(r, x); + r->magnitude = x->magnitude > 0; + r->normalized = 1; + VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == input_is_zero); + secp256k1_fe_verify(r); +} #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 283cd80ab471bccb995925eb55865f04e38566f4 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 8 Jun 2022 15:04:49 -0400 Subject: [PATCH 106/557] Abstract out verify logic for fe_get_bounds --- src/field.h | 6 ++++-- src/field_10x26_impl.h | 9 +-------- src/field_5x52_impl.h | 9 +-------- src/field_impl.h | 11 +++++++++++ 4 files changed, 17 insertions(+), 18 deletions(-) diff --git a/src/field.h b/src/field.h index 953919d9a3..4b23333eb0 100644 --- a/src/field.h +++ b/src/field.h @@ -97,6 +97,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_from_storage secp256k1_fe_impl_from_storage # define secp256k1_fe_inv secp256k1_fe_impl_inv # define secp256k1_fe_inv_var secp256k1_fe_impl_inv_var +# define secp256k1_fe_get_bounds secp256k1_fe_impl_get_bounds #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -306,8 +307,9 @@ static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag); * The output is not guaranteed to be normalized, regardless of the input. */ static void secp256k1_fe_half(secp256k1_fe *r); -/** Sets each limb of 'r' to its upper bound at magnitude 'm'. The output will also have its - * magnitude set to 'm' and is normalized if (and only if) 'm' is zero. */ +/** Sets r to a field element with magnitude m, normalized if (and only if) m==0. + * The value is chosen so that it is likely to trigger edge cases related to + * internal overflows. */ static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m); /** Determine whether a is a square (modulo p). */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index d7b30cc87d..39588c0bf9 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -38,9 +38,7 @@ static void secp256k1_fe_impl_verify(const secp256k1_fe *a) { } #endif -static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { - VERIFY_CHECK(m >= 0); - VERIFY_CHECK(m <= 2048); +static void secp256k1_fe_impl_get_bounds(secp256k1_fe *r, int m) { r->n[0] = 0x3FFFFFFUL * 2 * m; r->n[1] = 0x3FFFFFFUL * 2 * m; r->n[2] = 0x3FFFFFFUL * 2 * m; @@ -51,11 +49,6 @@ static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { r->n[7] = 0x3FFFFFFUL * 2 * m; r->n[8] = 0x3FFFFFFUL * 2 * m; r->n[9] = 0x03FFFFFUL * 2 * m; -#ifdef VERIFY - r->magnitude = m; - r->normalized = (m == 0); - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_impl_normalize(secp256k1_fe *r) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index e056cc2620..d9d4e1a7bd 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -37,19 +37,12 @@ static void secp256k1_fe_impl_verify(const secp256k1_fe *a) { } #endif -static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m) { - VERIFY_CHECK(m >= 0); - VERIFY_CHECK(m <= 2048); +static void secp256k1_fe_impl_get_bounds(secp256k1_fe *r, int m) { r->n[0] = 0xFFFFFFFFFFFFFULL * 2 * m; r->n[1] = 0xFFFFFFFFFFFFFULL * 2 * m; r->n[2] = 0xFFFFFFFFFFFFFULL * 2 * m; r->n[3] = 0xFFFFFFFFFFFFFULL * 2 * m; r->n[4] = 0x0FFFFFFFFFFFFULL * 2 * m; -#ifdef VERIFY - r->magnitude = m; - r->normalized = (m == 0); - secp256k1_fe_verify(r); -#endif } static void secp256k1_fe_impl_normalize(secp256k1_fe *r) { diff --git a/src/field_impl.h b/src/field_impl.h index 3c03e26352..0eac34d10f 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -373,6 +373,17 @@ SECP256K1_INLINE static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256 VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == input_is_zero); secp256k1_fe_verify(r); } + +static void secp256k1_fe_impl_get_bounds(secp256k1_fe* r, int m); +SECP256K1_INLINE static void secp256k1_fe_get_bounds(secp256k1_fe* r, int m) { + VERIFY_CHECK(m >= 0); + VERIFY_CHECK(m <= 32); + secp256k1_fe_impl_get_bounds(r, m); + r->magnitude = m; + r->normalized = (m == 0); + secp256k1_fe_verify(r); +} + #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 89e324c6b9d1c74d3636b4ef5b1e5404e3e2053b Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 17 Nov 2022 11:28:49 -0500 Subject: [PATCH 107/557] Abstract out verify logic for fe_half --- src/field.h | 10 +++++++--- src/field_10x26_impl.h | 17 +++-------------- src/field_5x52_impl.h | 17 +++-------------- src/field_impl.h | 10 ++++++++++ 4 files changed, 23 insertions(+), 31 deletions(-) diff --git a/src/field.h b/src/field.h index 4b23333eb0..c20638e45e 100644 --- a/src/field.h +++ b/src/field.h @@ -98,6 +98,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_inv secp256k1_fe_impl_inv # define secp256k1_fe_inv_var secp256k1_fe_impl_inv_var # define secp256k1_fe_get_bounds secp256k1_fe_impl_get_bounds +# define secp256k1_fe_half secp256k1_fe_impl_half #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -302,9 +303,12 @@ static void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_f */ static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag); -/** Halves the value of a field element modulo the field prime. Constant-time. - * For an input magnitude 'm', the output magnitude is set to 'floor(m/2) + 1'. - * The output is not guaranteed to be normalized, regardless of the input. */ +/** Halve the value of a field element modulo the field prime in constant-time. + * + * On input, r must be a valid field element. + * On output, r will be normalized and have magnitude floor(m/2) + 1 where m is + * the magnitude of r on input. + */ static void secp256k1_fe_half(secp256k1_fe *r); /** Sets r to a field element with magnitude m, normalized if (and only if) m==0. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 39588c0bf9..ec53165e88 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1046,17 +1046,12 @@ SECP256K1_INLINE static void secp256k1_fe_impl_cmov(secp256k1_fe *r, const secp2 r->n[9] = (r->n[9] & mask0) | (a->n[9] & mask1); } -static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { +static SECP256K1_INLINE void secp256k1_fe_impl_half(secp256k1_fe *r) { uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4], t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9]; uint32_t one = (uint32_t)1; uint32_t mask = -(t0 & one) >> 6; -#ifdef VERIFY - secp256k1_fe_verify(r); - VERIFY_CHECK(r->magnitude < 32); -#endif - /* Bounds analysis (over the rationals). * * Let m = r->magnitude @@ -1103,10 +1098,8 @@ static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { * * Current bounds: t0..t8 <= C * (m/2 + 1/2) * t9 <= D * (m/2 + 1/4) - */ - -#ifdef VERIFY - /* Therefore the output magnitude (M) has to be set such that: + * + * Therefore the output magnitude (M) has to be set such that: * t0..t8: C * M >= C * (m/2 + 1/2) * t9: D * M >= D * (m/2 + 1/4) * @@ -1116,10 +1109,6 @@ static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { * and since we want the smallest such integer value for M: * M == floor(m/2) + 1 */ - r->magnitude = (r->magnitude >> 1) + 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } static SECP256K1_INLINE void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_fe_storage *a, int flag) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index d9d4e1a7bd..06a2e379ab 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -375,16 +375,11 @@ SECP256K1_INLINE static void secp256k1_fe_impl_cmov(secp256k1_fe *r, const secp2 r->n[4] = (r->n[4] & mask0) | (a->n[4] & mask1); } -static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { +static SECP256K1_INLINE void secp256k1_fe_impl_half(secp256k1_fe *r) { uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4]; uint64_t one = (uint64_t)1; uint64_t mask = -(t0 & one) >> 12; -#ifdef VERIFY - secp256k1_fe_verify(r); - VERIFY_CHECK(r->magnitude < 32); -#endif - /* Bounds analysis (over the rationals). * * Let m = r->magnitude @@ -421,10 +416,8 @@ static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { * * Current bounds: t0..t3 <= C * (m/2 + 1/2) * t4 <= D * (m/2 + 1/4) - */ - -#ifdef VERIFY - /* Therefore the output magnitude (M) has to be set such that: + * + * Therefore the output magnitude (M) has to be set such that: * t0..t3: C * M >= C * (m/2 + 1/2) * t4: D * M >= D * (m/2 + 1/4) * @@ -434,10 +427,6 @@ static SECP256K1_INLINE void secp256k1_fe_half(secp256k1_fe *r) { * and since we want the smallest such integer value for M: * M == floor(m/2) + 1 */ - r->magnitude = (r->magnitude >> 1) + 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } static SECP256K1_INLINE void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_fe_storage *a, int flag) { diff --git a/src/field_impl.h b/src/field_impl.h index 0eac34d10f..8dbc765f73 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -384,6 +384,16 @@ SECP256K1_INLINE static void secp256k1_fe_get_bounds(secp256k1_fe* r, int m) { secp256k1_fe_verify(r); } +static void secp256k1_fe_impl_half(secp256k1_fe *r); +SECP256K1_INLINE static void secp256k1_fe_half(secp256k1_fe *r) { + secp256k1_fe_verify(r); + VERIFY_CHECK(r->magnitude < 32); + secp256k1_fe_impl_half(r); + r->magnitude = (r->magnitude >> 1) + 1; + r->normalized = 0; + secp256k1_fe_verify(r); +} + #endif /* defined(VERIFY) */ #endif /* SECP256K1_FIELD_IMPL_H */ From 4371f98346b0a50c0a77e93948fe5e21d9346d06 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 11 May 2023 03:05:35 -0400 Subject: [PATCH 108/557] Abstract out verify logic for fe_add_int --- src/field.h | 7 ++++++- src/field_10x26_impl.h | 10 +--------- src/field_5x52_impl.h | 10 +--------- src/field_impl.h | 10 ++++++++++ 4 files changed, 18 insertions(+), 19 deletions(-) diff --git a/src/field.h b/src/field.h index c20638e45e..a515f38095 100644 --- a/src/field.h +++ b/src/field.h @@ -99,6 +99,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_inv_var secp256k1_fe_impl_inv_var # define secp256k1_fe_get_bounds secp256k1_fe_impl_get_bounds # define secp256k1_fe_half secp256k1_fe_impl_half +# define secp256k1_fe_add_int secp256k1_fe_impl_add_int #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -213,7 +214,11 @@ static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a); */ static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m); -/** Adds a small integer (up to 0x7FFF) to r. The resulting magnitude increases by one. */ +/** Add a small integer to a field element. + * + * Performs {r += a}. The magnitude of r increases by 1, and normalized is cleared. + * a must be in range [0,0xFFFF]. + */ static void secp256k1_fe_add_int(secp256k1_fe *r, int a); /** Multiply a field element with a small integer. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index ec53165e88..80f32aa460 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -389,16 +389,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_add(secp256k1_fe *r, const secp25 r->n[9] += a->n[9]; } -SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { - secp256k1_fe_verify(r); - VERIFY_CHECK(a >= 0); - VERIFY_CHECK(a <= 0x7FFF); +SECP256K1_INLINE static void secp256k1_fe_impl_add_int(secp256k1_fe *r, int a) { r->n[0] += a; -#ifdef VERIFY - r->magnitude += 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } #if defined(USE_EXTERNAL_ASM) diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 06a2e379ab..a9a436dec0 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -334,16 +334,8 @@ SECP256K1_INLINE static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a) { r->n[4] *= a; } -SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { - secp256k1_fe_verify(r); - VERIFY_CHECK(a >= 0); - VERIFY_CHECK(a <= 0x7FFF); +SECP256K1_INLINE static void secp256k1_fe_impl_add_int(secp256k1_fe *r, int a) { r->n[0] += a; -#ifdef VERIFY - r->magnitude += 1; - r->normalized = 0; - secp256k1_fe_verify(r); -#endif } SECP256K1_INLINE static void secp256k1_fe_impl_add(secp256k1_fe *r, const secp256k1_fe *a) { diff --git a/src/field_impl.h b/src/field_impl.h index 8dbc765f73..0d46b313d5 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -220,6 +220,16 @@ SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe *r, int a) { secp256k1_fe_verify(r); } +static void secp256k1_fe_impl_add_int(secp256k1_fe *r, int a); +SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { + VERIFY_CHECK(0 <= a && a <= 0x7FFF); + secp256k1_fe_verify(r); + secp256k1_fe_impl_add_int(r, a); + r->magnitude += 1; + r->normalized = 0; + secp256k1_fe_verify(r); +} + static void secp256k1_fe_impl_clear(secp256k1_fe *a); SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { a->magnitude = 0; From 4e176ad5b94f989d5e2c6cdf9b2761a6f6a971e5 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 11 May 2023 03:16:00 -0400 Subject: [PATCH 109/557] Abstract out verify logic for fe_is_square_var --- src/field.h | 6 +++++- src/field_10x26_impl.h | 6 +----- src/field_5x52_impl.h | 6 +----- src/field_impl.h | 11 +++++++++++ 4 files changed, 18 insertions(+), 11 deletions(-) diff --git a/src/field.h b/src/field.h index a515f38095..2c8fbc28e3 100644 --- a/src/field.h +++ b/src/field.h @@ -100,6 +100,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_get_bounds secp256k1_fe_impl_get_bounds # define secp256k1_fe_half secp256k1_fe_impl_half # define secp256k1_fe_add_int secp256k1_fe_impl_add_int +# define secp256k1_fe_is_square_var secp256k1_fe_impl_is_square_var #endif /* !defined(VERIFY) */ /** Normalize a field element. @@ -321,7 +322,10 @@ static void secp256k1_fe_half(secp256k1_fe *r); * internal overflows. */ static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m); -/** Determine whether a is a square (modulo p). */ +/** Determine whether a is a square (modulo p). + * + * On input, a must be a valid field element. + */ static int secp256k1_fe_is_square_var(const secp256k1_fe *a); /** Check invariants on a field element (no-op unless VERIFY is enabled). */ diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 80f32aa460..946c95fb2f 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -1215,7 +1215,7 @@ static void secp256k1_fe_impl_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { secp256k1_fe_from_signed30(r, &s); } -static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { +static int secp256k1_fe_impl_is_square_var(const secp256k1_fe *x) { secp256k1_fe tmp; secp256k1_modinv32_signed30 s; int jac, ret; @@ -1233,10 +1233,6 @@ static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { secp256k1_fe dummy; ret = secp256k1_fe_sqrt(&dummy, &tmp); } else { -#ifdef VERIFY - secp256k1_fe dummy; - VERIFY_CHECK(jac == 2*secp256k1_fe_sqrt(&dummy, &tmp) - 1); -#endif ret = jac >= 0; } return ret; diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index a9a436dec0..f947903675 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -504,7 +504,7 @@ static void secp256k1_fe_impl_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { secp256k1_fe_from_signed62(r, &s); } -static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { +static int secp256k1_fe_impl_is_square_var(const secp256k1_fe *x) { secp256k1_fe tmp; secp256k1_modinv64_signed62 s; int jac, ret; @@ -522,10 +522,6 @@ static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { secp256k1_fe dummy; ret = secp256k1_fe_sqrt(&dummy, &tmp); } else { -#ifdef VERIFY - secp256k1_fe dummy; - VERIFY_CHECK(jac == 2*secp256k1_fe_sqrt(&dummy, &tmp) - 1); -#endif ret = jac >= 0; } return ret; diff --git a/src/field_impl.h b/src/field_impl.h index 0d46b313d5..187ffc8d8b 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -384,6 +384,17 @@ SECP256K1_INLINE static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256 secp256k1_fe_verify(r); } +static int secp256k1_fe_impl_is_square_var(const secp256k1_fe *x); +SECP256K1_INLINE static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { + int ret; + secp256k1_fe tmp = *x, sqrt; + secp256k1_fe_verify(x); + ret = secp256k1_fe_impl_is_square_var(x); + secp256k1_fe_normalize_weak(&tmp); + VERIFY_CHECK(ret == secp256k1_fe_sqrt(&sqrt, &tmp)); + return ret; +} + static void secp256k1_fe_impl_get_bounds(secp256k1_fe* r, int m); SECP256K1_INLINE static void secp256k1_fe_get_bounds(secp256k1_fe* r, int m) { VERIFY_CHECK(m >= 0); From 7fc642fa25ad03ebd95cfe237b625dfb6dfdfa94 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 11 May 2023 04:42:09 -0400 Subject: [PATCH 110/557] Simplify secp256k1_fe_{impl_,}verify --- src/field_10x26_impl.h | 27 +++++++++++++-------------- src/field_5x52_impl.h | 17 ++++++++--------- src/field_impl.h | 7 +++---- 3 files changed, 24 insertions(+), 27 deletions(-) diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 946c95fb2f..3f719c161f 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -15,26 +15,25 @@ #ifdef VERIFY static void secp256k1_fe_impl_verify(const secp256k1_fe *a) { const uint32_t *d = a->n; - int m = a->normalized ? 1 : 2 * a->magnitude, r = 1; - r &= (d[0] <= 0x3FFFFFFUL * m); - r &= (d[1] <= 0x3FFFFFFUL * m); - r &= (d[2] <= 0x3FFFFFFUL * m); - r &= (d[3] <= 0x3FFFFFFUL * m); - r &= (d[4] <= 0x3FFFFFFUL * m); - r &= (d[5] <= 0x3FFFFFFUL * m); - r &= (d[6] <= 0x3FFFFFFUL * m); - r &= (d[7] <= 0x3FFFFFFUL * m); - r &= (d[8] <= 0x3FFFFFFUL * m); - r &= (d[9] <= 0x03FFFFFUL * m); + int m = a->normalized ? 1 : 2 * a->magnitude; + VERIFY_CHECK(d[0] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[1] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[2] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[3] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[4] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[5] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[6] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[7] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[8] <= 0x3FFFFFFUL * m); + VERIFY_CHECK(d[9] <= 0x03FFFFFUL * m); if (a->normalized) { - if (r && (d[9] == 0x03FFFFFUL)) { + if (d[9] == 0x03FFFFFUL) { uint32_t mid = d[8] & d[7] & d[6] & d[5] & d[4] & d[3] & d[2]; if (mid == 0x3FFFFFFUL) { - r &= ((d[1] + 0x40UL + ((d[0] + 0x3D1UL) >> 26)) <= 0x3FFFFFFUL); + VERIFY_CHECK((d[1] + 0x40UL + ((d[0] + 0x3D1UL) >> 26)) <= 0x3FFFFFFUL); } } } - VERIFY_CHECK(r == 1); } #endif diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index f947903675..a44a64b5a1 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -21,19 +21,18 @@ #ifdef VERIFY static void secp256k1_fe_impl_verify(const secp256k1_fe *a) { const uint64_t *d = a->n; - int m = a->normalized ? 1 : 2 * a->magnitude, r = 1; + int m = a->normalized ? 1 : 2 * a->magnitude; /* secp256k1 'p' value defined in "Standards for Efficient Cryptography" (SEC2) 2.7.1. */ - r &= (d[0] <= 0xFFFFFFFFFFFFFULL * m); - r &= (d[1] <= 0xFFFFFFFFFFFFFULL * m); - r &= (d[2] <= 0xFFFFFFFFFFFFFULL * m); - r &= (d[3] <= 0xFFFFFFFFFFFFFULL * m); - r &= (d[4] <= 0x0FFFFFFFFFFFFULL * m); + VERIFY_CHECK(d[0] <= 0xFFFFFFFFFFFFFULL * m); + VERIFY_CHECK(d[1] <= 0xFFFFFFFFFFFFFULL * m); + VERIFY_CHECK(d[2] <= 0xFFFFFFFFFFFFFULL * m); + VERIFY_CHECK(d[3] <= 0xFFFFFFFFFFFFFULL * m); + VERIFY_CHECK(d[4] <= 0x0FFFFFFFFFFFFULL * m); if (a->normalized) { - if (r && (d[4] == 0x0FFFFFFFFFFFFULL) && ((d[3] & d[2] & d[1]) == 0xFFFFFFFFFFFFFULL)) { - r &= (d[0] < 0xFFFFEFFFFFC2FULL); + if ((d[4] == 0x0FFFFFFFFFFFFULL) && ((d[3] & d[2] & d[1]) == 0xFFFFFFFFFFFFFULL)) { + VERIFY_CHECK(d[0] < 0xFFFFEFFFFFC2FULL); } } - VERIFY_CHECK(r == 1); } #endif diff --git a/src/field_impl.h b/src/field_impl.h index 187ffc8d8b..c082d8f553 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -163,12 +163,11 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { (void)a; } static void secp256k1_fe_impl_verify(const secp256k1_fe *a); static void secp256k1_fe_verify(const secp256k1_fe *a) { /* Magnitude between 0 and 32. */ - int r = (a->magnitude >= 0) & (a->magnitude <= 32); + VERIFY_CHECK((a->magnitude >= 0) && (a->magnitude <= 32)); /* Normalized is 0 or 1. */ - r &= (a->normalized == 0) | (a->normalized == 1); + VERIFY_CHECK((a->normalized == 0) || (a->normalized == 1)); /* If normalized, magnitude must be 0 or 1. */ - if (a->normalized) r &= (a->magnitude <= 1); - VERIFY_CHECK(r == 1); + if (a->normalized) VERIFY_CHECK(a->magnitude <= 1); /* Invoke implementation-specific checks. */ secp256k1_fe_impl_verify(a); } From 712e7f8722eba5dec2bc6b37d75aadeb6f6e633b Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 11 May 2023 13:24:37 +0000 Subject: [PATCH 111/557] Remove unused scratch space from API --- include/secp256k1.h | 36 ------------------------------------ src/scratch.h | 2 ++ src/secp256k1.c | 4 ++-- 3 files changed, 4 insertions(+), 38 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index a7a2be7a3a..d5450e2998 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -49,19 +49,6 @@ extern "C" { */ typedef struct secp256k1_context_struct secp256k1_context; -/** Opaque data structure that holds rewritable "scratch space" - * - * The purpose of this structure is to replace dynamic memory allocations, - * because we target architectures where this may not be available. It is - * essentially a resizable (within specified parameters) block of bytes, - * which is initially created either by memory allocation or TODO as a pointer - * into some fixed rewritable space. - * - * Unlike the context object, this cannot safely be shared between threads - * without additional synchronization logic. - */ -typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space; - /** Opaque data structure that holds a parsed and valid public key. * * The exact representation of data inside is implementation defined and not @@ -385,29 +372,6 @@ SECP256K1_API void secp256k1_context_set_error_callback( const void *data ) SECP256K1_ARG_NONNULL(1); -/** Create a secp256k1 scratch space object. - * - * Returns: a newly created scratch space. - * Args: ctx: an existing context object. - * In: size: amount of memory to be available as scratch space. Some extra - * (<100 bytes) will be allocated for extra accounting. - */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space *secp256k1_scratch_space_create( - const secp256k1_context *ctx, - size_t size -) SECP256K1_ARG_NONNULL(1); - -/** Destroy a secp256k1 scratch space. - * - * The pointer may not be used afterwards. - * Args: ctx: a secp256k1 context object. - * scratch: space to destroy - */ -SECP256K1_API void secp256k1_scratch_space_destroy( - const secp256k1_context *ctx, - secp256k1_scratch_space *scratch -) SECP256K1_ARG_NONNULL(1); - /** Parse a variable-length public key into the pubkey object. * * Returns: 1 if the public key was fully valid. diff --git a/src/scratch.h b/src/scratch.h index 9dcb7581f6..6164330b39 100644 --- a/src/scratch.h +++ b/src/scratch.h @@ -21,6 +21,8 @@ typedef struct secp256k1_scratch_space_struct { size_t max_size; } secp256k1_scratch; +typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space; + static secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t max_size); static void secp256k1_scratch_destroy(const secp256k1_callback* error_callback, secp256k1_scratch* scratch); diff --git a/src/secp256k1.c b/src/secp256k1.c index 7af333ca90..086cbc85cd 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -219,12 +219,12 @@ void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(co ctx->error_callback.data = data; } -secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) { +static secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) { VERIFY_CHECK(ctx != NULL); return secp256k1_scratch_create(&ctx->error_callback, max_size); } -void secp256k1_scratch_space_destroy(const secp256k1_context *ctx, secp256k1_scratch_space* scratch) { +static void secp256k1_scratch_space_destroy(const secp256k1_context *ctx, secp256k1_scratch_space* scratch) { VERIFY_CHECK(ctx != NULL); secp256k1_scratch_destroy(&ctx->error_callback, scratch); } From 5fb336f9ce7d287015ada5d1d6be35d63469c9a4 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 10 May 2023 15:19:38 +0200 Subject: [PATCH 112/557] ct: Use volatile trick in scalar_cond_negate --- src/scalar_4x64_impl.h | 3 ++- src/scalar_8x32_impl.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 88981519b6..2a5584ea45 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -189,7 +189,8 @@ static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { /* If we are flag = 0, mask = 00...00 and this is a no-op; * if we are flag = 1, mask = 11...11 and this is identical to secp256k1_scalar_negate */ - uint64_t mask = !flag - 1; + volatile int vflag = flag; + uint64_t mask = -vflag; uint64_t nonzero = (secp256k1_scalar_is_zero(r) != 0) - 1; secp256k1_uint128 t; secp256k1_u128_from_u64(&t, r->d[0] ^ mask); diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index 94ae22f75f..f9889d5372 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -242,7 +242,8 @@ static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { /* If we are flag = 0, mask = 00...00 and this is a no-op; * if we are flag = 1, mask = 11...11 and this is identical to secp256k1_scalar_negate */ - uint32_t mask = !flag - 1; + volatile int vflag = flag; + uint32_t mask = -vflag; uint32_t nonzero = 0xFFFFFFFFUL * (secp256k1_scalar_is_zero(r) == 0); uint64_t t = (uint64_t)(r->d[0] ^ mask) + ((SECP256K1_N_0 + 1) & mask); r->d[0] = t & nonzero; t >>= 32; From 17fa21733aae97bf671fede3ce528c7a3b2f5f14 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 10 May 2023 16:25:37 +0200 Subject: [PATCH 113/557] ct: Be cautious and use volatile trick in more "conditional" paths - secp256k1_scalar_cadd_bit - secp256k1_modinvXX_normalize_YY - secp256k1_modinvXX_divsteps_ZZ - ECMULT_CONST_TABLE_GET_GE Even though those code loations are not problematic right now (with current compilers). --- src/ecmult_const_impl.h | 2 +- src/modinv32_impl.h | 33 ++++++++++++++++++--------------- src/modinv64_impl.h | 31 +++++++++++++++++-------------- src/scalar_4x64_impl.h | 3 ++- src/scalar_8x32_impl.h | 3 ++- 5 files changed, 40 insertions(+), 32 deletions(-) diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index f2b6f48285..66082e66ec 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -29,7 +29,7 @@ static void secp256k1_ecmult_odd_multiples_table_globalz_windowa(secp256k1_ge *p #define ECMULT_CONST_TABLE_GET_GE(r,pre,n,w) do { \ int m = 0; \ /* Extract the sign-bit for a constant time absolute-value. */ \ - int mask = (n) >> (sizeof(n) * CHAR_BIT - 1); \ + int volatile mask = (n) >> (sizeof(n) * CHAR_BIT - 1); \ int abs_n = ((n) + mask) ^ mask; \ int idx_n = abs_n >> 1; \ secp256k1_fe neg_y; \ diff --git a/src/modinv32_impl.h b/src/modinv32_impl.h index 8e400b697b..0ea2699863 100644 --- a/src/modinv32_impl.h +++ b/src/modinv32_impl.h @@ -64,7 +64,7 @@ static void secp256k1_modinv32_normalize_30(secp256k1_modinv32_signed30 *r, int3 const int32_t M30 = (int32_t)(UINT32_MAX >> 2); int32_t r0 = r->v[0], r1 = r->v[1], r2 = r->v[2], r3 = r->v[3], r4 = r->v[4], r5 = r->v[5], r6 = r->v[6], r7 = r->v[7], r8 = r->v[8]; - int32_t cond_add, cond_negate; + volatile int32_t cond_add, cond_negate; #ifdef VERIFY /* Verify that all limbs are in range (-2^30,2^30). */ @@ -186,7 +186,8 @@ static int32_t secp256k1_modinv32_divsteps_30(int32_t zeta, uint32_t f0, uint32_ * being inside [-2^31,2^31) means that casting to signed works correctly. */ uint32_t u = 1, v = 0, q = 0, r = 1; - uint32_t c1, c2, f = f0, g = g0, x, y, z; + volatile uint32_t c1, c2; + uint32_t mask1, mask2, f = f0, g = g0, x, y, z; int i; for (i = 0; i < 30; ++i) { @@ -195,23 +196,25 @@ static int32_t secp256k1_modinv32_divsteps_30(int32_t zeta, uint32_t f0, uint32_ VERIFY_CHECK((q * f0 + r * g0) == g << i); /* Compute conditional masks for (zeta < 0) and for (g & 1). */ c1 = zeta >> 31; - c2 = -(g & 1); + mask1 = c1; + c2 = g & 1; + mask2 = -c2; /* Compute x,y,z, conditionally negated versions of f,u,v. */ - x = (f ^ c1) - c1; - y = (u ^ c1) - c1; - z = (v ^ c1) - c1; + x = (f ^ mask1) - mask1; + y = (u ^ mask1) - mask1; + z = (v ^ mask1) - mask1; /* Conditionally add x,y,z to g,q,r. */ - g += x & c2; - q += y & c2; - r += z & c2; - /* In what follows, c1 is a condition mask for (zeta < 0) and (g & 1). */ - c1 &= c2; + g += x & mask2; + q += y & mask2; + r += z & mask2; + /* In what follows, mask1 is a condition mask for (zeta < 0) and (g & 1). */ + mask1 &= mask2; /* Conditionally change zeta into -zeta-2 or zeta-1. */ - zeta = (zeta ^ c1) - 1; + zeta = (zeta ^ mask1) - 1; /* Conditionally add g,q,r to f,u,v. */ - f += g & c1; - u += q & c1; - v += r & c1; + f += g & mask1; + u += q & mask1; + v += r & mask1; /* Shifts */ g >>= 1; u <<= 1; diff --git a/src/modinv64_impl.h b/src/modinv64_impl.h index e33727d385..c7cef872a4 100644 --- a/src/modinv64_impl.h +++ b/src/modinv64_impl.h @@ -88,7 +88,7 @@ static int secp256k1_modinv64_det_check_pow2(const secp256k1_modinv64_trans2x2 * static void secp256k1_modinv64_normalize_62(secp256k1_modinv64_signed62 *r, int64_t sign, const secp256k1_modinv64_modinfo *modinfo) { const int64_t M62 = (int64_t)(UINT64_MAX >> 2); int64_t r0 = r->v[0], r1 = r->v[1], r2 = r->v[2], r3 = r->v[3], r4 = r->v[4]; - int64_t cond_add, cond_negate; + volatile int64_t cond_add, cond_negate; #ifdef VERIFY /* Verify that all limbs are in range (-2^62,2^62). */ @@ -175,7 +175,8 @@ static int64_t secp256k1_modinv64_divsteps_59(int64_t zeta, uint64_t f0, uint64_ * being inside [-2^63,2^63) means that casting to signed works correctly. */ uint64_t u = 8, v = 0, q = 0, r = 8; - uint64_t c1, c2, f = f0, g = g0, x, y, z; + volatile uint64_t c1, c2; + uint64_t mask1, mask2, f = f0, g = g0, x, y, z; int i; for (i = 3; i < 62; ++i) { @@ -184,23 +185,25 @@ static int64_t secp256k1_modinv64_divsteps_59(int64_t zeta, uint64_t f0, uint64_ VERIFY_CHECK((q * f0 + r * g0) == g << i); /* Compute conditional masks for (zeta < 0) and for (g & 1). */ c1 = zeta >> 63; - c2 = -(g & 1); + mask1 = c1; + c2 = g & 1; + mask2 = -c2; /* Compute x,y,z, conditionally negated versions of f,u,v. */ - x = (f ^ c1) - c1; - y = (u ^ c1) - c1; - z = (v ^ c1) - c1; + x = (f ^ mask1) - mask1; + y = (u ^ mask1) - mask1; + z = (v ^ mask1) - mask1; /* Conditionally add x,y,z to g,q,r. */ - g += x & c2; - q += y & c2; - r += z & c2; + g += x & mask2; + q += y & mask2; + r += z & mask2; /* In what follows, c1 is a condition mask for (zeta < 0) and (g & 1). */ - c1 &= c2; + mask1 &= mask2; /* Conditionally change zeta into -zeta-2 or zeta-1. */ - zeta = (zeta ^ c1) - 1; + zeta = (zeta ^ mask1) - 1; /* Conditionally add g,q,r to f,u,v. */ - f += g & c1; - u += q & c1; - v += r & c1; + f += g & mask1; + u += q & mask1; + v += r & mask1; /* Shifts */ g >>= 1; u <<= 1; diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 2a5584ea45..e50ec3ae94 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -111,8 +111,9 @@ static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { secp256k1_uint128 t; + volatile int vflag = flag; VERIFY_CHECK(bit < 256); - bit += ((uint32_t) flag - 1) & 0x100; /* forcing (bit >> 6) > 3 makes this a noop */ + bit += ((uint32_t) vflag - 1) & 0x100; /* forcing (bit >> 6) > 3 makes this a noop */ secp256k1_u128_from_u64(&t, r->d[0]); secp256k1_u128_accum_u64(&t, ((uint64_t)((bit >> 6) == 0)) << (bit & 0x3F)); r->d[0] = secp256k1_u128_to_u64(&t); secp256k1_u128_rshift(&t, 64); diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index f9889d5372..da9936dbd9 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -142,8 +142,9 @@ static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { uint64_t t; + volatile int vflag = flag; VERIFY_CHECK(bit < 256); - bit += ((uint32_t) flag - 1) & 0x100; /* forcing (bit >> 5) > 7 makes this a noop */ + bit += ((uint32_t) vflag - 1) & 0x100; /* forcing (bit >> 5) > 7 makes this a noop */ t = (uint64_t)r->d[0] + (((uint32_t)((bit >> 5) == 0)) << (bit & 0x1F)); r->d[0] = t & 0xFFFFFFFFULL; t >>= 32; t += (uint64_t)r->d[1] + (((uint32_t)((bit >> 5) == 1)) << (bit & 0x1F)); From 97a98bed1ed479b1a23d8ae788020d8a6e081cf0 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 11 Aug 2022 16:02:56 +0200 Subject: [PATCH 114/557] schnorrsig: Refactor test vector code to allow varlen messages --- src/modules/schnorrsig/tests_impl.h | 60 ++++++++++++++++------------- 1 file changed, 34 insertions(+), 26 deletions(-) diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index 062005ee63..2da5d802aa 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -215,28 +215,36 @@ static void test_schnorrsig_sha256_tagged(void) { /* Helper function for schnorrsig_bip_vectors * Signs the message and checks that it's the same as expected_sig. */ -static void test_schnorrsig_bip_vectors_check_signing(const unsigned char *sk, const unsigned char *pk_serialized, const unsigned char *aux_rand, const unsigned char *msg32, const unsigned char *expected_sig) { +static void test_schnorrsig_bip_vectors_check_signing(const unsigned char *sk, const unsigned char *pk_serialized, const unsigned char *aux_rand, const unsigned char *msg, size_t msglen, const unsigned char *expected_sig) { unsigned char sig[64]; secp256k1_keypair keypair; secp256k1_xonly_pubkey pk, pk_expected; + secp256k1_schnorrsig_extraparams extraparams = SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT; + extraparams.ndata = (unsigned char*)aux_rand; + CHECK(secp256k1_keypair_create(CTX, &keypair, sk)); - CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg32, &keypair, aux_rand)); + CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, msg, msglen, &keypair, &extraparams)); CHECK(secp256k1_memcmp_var(sig, expected_sig, 64) == 0); + if (msglen == 32) { + memset(sig, 0, 64); + CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg, &keypair, aux_rand)); + CHECK(secp256k1_memcmp_var(sig, expected_sig, 64) == 0); + } CHECK(secp256k1_xonly_pubkey_parse(CTX, &pk_expected, pk_serialized)); CHECK(secp256k1_keypair_xonly_pub(CTX, &pk, NULL, &keypair)); CHECK(secp256k1_memcmp_var(&pk, &pk_expected, sizeof(pk)) == 0); - CHECK(secp256k1_schnorrsig_verify(CTX, sig, msg32, 32, &pk)); + CHECK(secp256k1_schnorrsig_verify(CTX, sig, msg, msglen, &pk)); } /* Helper function for schnorrsig_bip_vectors * Checks that both verify and verify_batch (TODO) return the same value as expected. */ -static void test_schnorrsig_bip_vectors_check_verify(const unsigned char *pk_serialized, const unsigned char *msg32, const unsigned char *sig, int expected) { +static void test_schnorrsig_bip_vectors_check_verify(const unsigned char *pk_serialized, const unsigned char *msg, size_t msglen, const unsigned char *sig, int expected) { secp256k1_xonly_pubkey pk; CHECK(secp256k1_xonly_pubkey_parse(CTX, &pk, pk_serialized)); - CHECK(expected == secp256k1_schnorrsig_verify(CTX, sig, msg32, 32, &pk)); + CHECK(expected == secp256k1_schnorrsig_verify(CTX, sig, msg, msglen, &pk)); } /* Test vectors according to BIP-340 ("Schnorr Signatures for secp256k1"). See @@ -256,7 +264,7 @@ static void test_schnorrsig_bip_vectors(void) { 0xB5, 0x31, 0xC8, 0x45, 0x83, 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }; - unsigned char aux_rand[32] = { + const unsigned char aux_rand[32] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -278,8 +286,8 @@ static void test_schnorrsig_bip_vectors(void) { 0xEB, 0xEE, 0xE8, 0xFD, 0xB2, 0x17, 0x2F, 0x47, 0x7D, 0xF4, 0x90, 0x0D, 0x31, 0x05, 0x36, 0xC0 }; - test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sig); - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 1); + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sizeof(msg), sig); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); } { /* Test vector 1 */ @@ -295,7 +303,7 @@ static void test_schnorrsig_bip_vectors(void) { 0x58, 0xFE, 0xAE, 0x1D, 0xA2, 0xDE, 0xCE, 0xD8, 0x43, 0x24, 0x0F, 0x7B, 0x50, 0x2B, 0xA6, 0x59 }; - unsigned char aux_rand[32] = { + const unsigned char aux_rand[32] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -317,8 +325,8 @@ static void test_schnorrsig_bip_vectors(void) { 0x89, 0x7E, 0xFC, 0xB6, 0x39, 0xEA, 0x87, 0x1C, 0xFA, 0x95, 0xF6, 0xDE, 0x33, 0x9E, 0x4B, 0x0A }; - test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sig); - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 1); + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sizeof(msg), sig); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); } { /* Test vector 2 */ @@ -334,7 +342,7 @@ static void test_schnorrsig_bip_vectors(void) { 0x01, 0x39, 0x71, 0x53, 0x09, 0xB0, 0x86, 0xC9, 0x60, 0xE1, 0x8F, 0xD9, 0x69, 0x77, 0x4E, 0xB8 }; - unsigned char aux_rand[32] = { + const unsigned char aux_rand[32] = { 0xC8, 0x7A, 0xA5, 0x38, 0x24, 0xB4, 0xD7, 0xAE, 0x2E, 0xB0, 0x35, 0xA2, 0xB5, 0xBB, 0xBC, 0xCC, 0x08, 0x0E, 0x76, 0xCD, 0xC6, 0xD1, 0x69, 0x2C, @@ -356,8 +364,8 @@ static void test_schnorrsig_bip_vectors(void) { 0x7A, 0xDE, 0xA9, 0x8D, 0x82, 0xF8, 0x48, 0x1E, 0x0E, 0x1E, 0x03, 0x67, 0x4A, 0x6F, 0x3F, 0xB7 }; - test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sig); - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 1); + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sizeof(msg), sig); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); } { /* Test vector 3 */ @@ -373,7 +381,7 @@ static void test_schnorrsig_bip_vectors(void) { 0x3A, 0x0D, 0x95, 0xFB, 0xF2, 0x1D, 0x46, 0x8A, 0x1B, 0x33, 0xF8, 0xC1, 0x60, 0xD8, 0xF5, 0x17 }; - unsigned char aux_rand[32] = { + const unsigned char aux_rand[32] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, @@ -395,8 +403,8 @@ static void test_schnorrsig_bip_vectors(void) { 0xF2, 0x5F, 0xD7, 0x88, 0x81, 0xEB, 0xB3, 0x27, 0x71, 0xFC, 0x59, 0x22, 0xEF, 0xC6, 0x6E, 0xA3 }; - test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sig); - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 1); + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sizeof(msg), sig); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); } { /* Test vector 4 */ @@ -422,7 +430,7 @@ static void test_schnorrsig_bip_vectors(void) { 0x60, 0xCB, 0x71, 0xC0, 0x4E, 0x80, 0xF5, 0x93, 0x06, 0x0B, 0x07, 0xD2, 0x83, 0x08, 0xD7, 0xF4 }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 1); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); } { /* Test vector 5 */ @@ -460,7 +468,7 @@ static void test_schnorrsig_bip_vectors(void) { 0x7A, 0x73, 0xC6, 0x43, 0xE1, 0x66, 0xBE, 0x5E, 0xBE, 0xAF, 0xA3, 0x4B, 0x1A, 0xC5, 0x53, 0xE2 }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 7 */ @@ -486,7 +494,7 @@ static void test_schnorrsig_bip_vectors(void) { 0x62, 0x2A, 0x95, 0x4C, 0xFE, 0x54, 0x57, 0x35, 0xAA, 0xEA, 0x51, 0x34, 0xFC, 0xCD, 0xB2, 0xBD }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 8 */ @@ -512,7 +520,7 @@ static void test_schnorrsig_bip_vectors(void) { 0xE8, 0xD7, 0xC9, 0x3E, 0x00, 0xC5, 0xED, 0x0C, 0x18, 0x34, 0xFF, 0x0D, 0x0C, 0x2E, 0x6D, 0xA6 }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 9 */ @@ -538,7 +546,7 @@ static void test_schnorrsig_bip_vectors(void) { 0x4F, 0xB7, 0x34, 0x76, 0xF0, 0xD5, 0x94, 0xDC, 0xB6, 0x5C, 0x64, 0x25, 0xBD, 0x18, 0x60, 0x51 }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 10 */ @@ -564,7 +572,7 @@ static void test_schnorrsig_bip_vectors(void) { 0xDB, 0xA8, 0x7F, 0x11, 0xAC, 0x67, 0x54, 0xF9, 0x37, 0x80, 0xD5, 0xA1, 0x83, 0x7C, 0xF1, 0x97 }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 11 */ @@ -590,7 +598,7 @@ static void test_schnorrsig_bip_vectors(void) { 0xD1, 0xD7, 0x13, 0xA8, 0xAE, 0x82, 0xB3, 0x2F, 0xA7, 0x9D, 0x5F, 0x7F, 0xC4, 0x07, 0xD3, 0x9B }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 12 */ @@ -616,7 +624,7 @@ static void test_schnorrsig_bip_vectors(void) { 0xD1, 0xD7, 0x13, 0xA8, 0xAE, 0x82, 0xB3, 0x2F, 0xA7, 0x9D, 0x5F, 0x7F, 0xC4, 0x07, 0xD3, 0x9B }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 13 */ @@ -642,7 +650,7 @@ static void test_schnorrsig_bip_vectors(void) { 0xBA, 0xAE, 0xDC, 0xE6, 0xAF, 0x48, 0xA0, 0x3B, 0xBF, 0xD2, 0x5E, 0x8C, 0xD0, 0x36, 0x41, 0x41 }; - test_schnorrsig_bip_vectors_check_verify(pk, msg, sig, 0); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 0); } { /* Test vector 14 */ From 28687b03128fbdd23a3f901297f523dfae2f82e3 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 11 Aug 2022 16:52:39 +0200 Subject: [PATCH 115/557] schnorrsig: Add BIP340 varlen test vectors --- src/modules/schnorrsig/tests_impl.h | 141 ++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index 2da5d802aa..ddcb8a599b 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -664,6 +664,147 @@ static void test_schnorrsig_bip_vectors(void) { /* No need to check the signature of the test vector as parsing the pubkey already fails */ CHECK(!secp256k1_xonly_pubkey_parse(CTX, &pk_parsed, pk)); } + { + /* Test vector 15 */ + const unsigned char sk[32] = { + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + }; + const unsigned char pk[32] = { + 0x77, 0x8C, 0xAA, 0x53, 0xB4, 0x39, 0x3A, 0xC4, + 0x67, 0x77, 0x4D, 0x09, 0x49, 0x7A, 0x87, 0x22, + 0x4B, 0xF9, 0xFA, 0xB6, 0xF6, 0xE6, 0x8B, 0x23, + 0x08, 0x64, 0x97, 0x32, 0x4D, 0x6F, 0xD1, 0x17, + }; + const unsigned char aux_rand[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + /* const unsigned char msg[0] = {}; */ + const unsigned char sig[64] = { + 0x71, 0x53, 0x5D, 0xB1, 0x65, 0xEC, 0xD9, 0xFB, + 0xBC, 0x04, 0x6E, 0x5F, 0xFA, 0xEA, 0x61, 0x18, + 0x6B, 0xB6, 0xAD, 0x43, 0x67, 0x32, 0xFC, 0xCC, + 0x25, 0x29, 0x1A, 0x55, 0x89, 0x54, 0x64, 0xCF, + 0x60, 0x69, 0xCE, 0x26, 0xBF, 0x03, 0x46, 0x62, + 0x28, 0xF1, 0x9A, 0x3A, 0x62, 0xDB, 0x8A, 0x64, + 0x9F, 0x2D, 0x56, 0x0F, 0xAC, 0x65, 0x28, 0x27, + 0xD1, 0xAF, 0x05, 0x74, 0xE4, 0x27, 0xAB, 0x63, + }; + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, NULL, 0, sig); + test_schnorrsig_bip_vectors_check_verify(pk, NULL, 0, sig, 1); + } + { + /* Test vector 16 */ + const unsigned char sk[32] = { + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + }; + const unsigned char pk[32] = { + 0x77, 0x8C, 0xAA, 0x53, 0xB4, 0x39, 0x3A, 0xC4, + 0x67, 0x77, 0x4D, 0x09, 0x49, 0x7A, 0x87, 0x22, + 0x4B, 0xF9, 0xFA, 0xB6, 0xF6, 0xE6, 0x8B, 0x23, + 0x08, 0x64, 0x97, 0x32, 0x4D, 0x6F, 0xD1, 0x17, + }; + const unsigned char aux_rand[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + const unsigned char msg[] = { 0x11 }; + const unsigned char sig[64] = { + 0x08, 0xA2, 0x0A, 0x0A, 0xFE, 0xF6, 0x41, 0x24, + 0x64, 0x92, 0x32, 0xE0, 0x69, 0x3C, 0x58, 0x3A, + 0xB1, 0xB9, 0x93, 0x4A, 0xE6, 0x3B, 0x4C, 0x35, + 0x11, 0xF3, 0xAE, 0x11, 0x34, 0xC6, 0xA3, 0x03, + 0xEA, 0x31, 0x73, 0xBF, 0xEA, 0x66, 0x83, 0xBD, + 0x10, 0x1F, 0xA5, 0xAA, 0x5D, 0xBC, 0x19, 0x96, + 0xFE, 0x7C, 0xAC, 0xFC, 0x5A, 0x57, 0x7D, 0x33, + 0xEC, 0x14, 0x56, 0x4C, 0xEC, 0x2B, 0xAC, 0xBF, + }; + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sizeof(msg), sig); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); + } + { + /* Test vector 17 */ + const unsigned char sk[32] = { + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + }; + const unsigned char pk[32] = { + 0x77, 0x8C, 0xAA, 0x53, 0xB4, 0x39, 0x3A, 0xC4, + 0x67, 0x77, 0x4D, 0x09, 0x49, 0x7A, 0x87, 0x22, + 0x4B, 0xF9, 0xFA, 0xB6, 0xF6, 0xE6, 0x8B, 0x23, + 0x08, 0x64, 0x97, 0x32, 0x4D, 0x6F, 0xD1, 0x17, + }; + const unsigned char aux_rand[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + const unsigned char msg[] = { + 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, + 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, + 0x11, + }; + const unsigned char sig[64] = { + 0x51, 0x30, 0xF3, 0x9A, 0x40, 0x59, 0xB4, 0x3B, + 0xC7, 0xCA, 0xC0, 0x9A, 0x19, 0xEC, 0xE5, 0x2B, + 0x5D, 0x86, 0x99, 0xD1, 0xA7, 0x1E, 0x3C, 0x52, + 0xDA, 0x9A, 0xFD, 0xB6, 0xB5, 0x0A, 0xC3, 0x70, + 0xC4, 0xA4, 0x82, 0xB7, 0x7B, 0xF9, 0x60, 0xF8, + 0x68, 0x15, 0x40, 0xE2, 0x5B, 0x67, 0x71, 0xEC, + 0xE1, 0xE5, 0xA3, 0x7F, 0xD8, 0x0E, 0x5A, 0x51, + 0x89, 0x7C, 0x55, 0x66, 0xA9, 0x7E, 0xA5, 0xA5, + }; + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sizeof(msg), sig); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); + } + { + /* Test vector 18 */ + const unsigned char sk[32] = { + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, 0x03, 0x40, + }; + const unsigned char pk[32] = { + 0x77, 0x8C, 0xAA, 0x53, 0xB4, 0x39, 0x3A, 0xC4, + 0x67, 0x77, 0x4D, 0x09, 0x49, 0x7A, 0x87, 0x22, + 0x4B, 0xF9, 0xFA, 0xB6, 0xF6, 0xE6, 0x8B, 0x23, + 0x08, 0x64, 0x97, 0x32, 0x4D, 0x6F, 0xD1, 0x17, + }; + const unsigned char aux_rand[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + const unsigned char sig[64] = { + 0x40, 0x3B, 0x12, 0xB0, 0xD8, 0x55, 0x5A, 0x34, + 0x41, 0x75, 0xEA, 0x7E, 0xC7, 0x46, 0x56, 0x63, + 0x03, 0x32, 0x1E, 0x5D, 0xBF, 0xA8, 0xBE, 0x6F, + 0x09, 0x16, 0x35, 0x16, 0x3E, 0xCA, 0x79, 0xA8, + 0x58, 0x5E, 0xD3, 0xE3, 0x17, 0x08, 0x07, 0xE7, + 0xC0, 0x3B, 0x72, 0x0F, 0xC5, 0x4C, 0x7B, 0x23, + 0x89, 0x7F, 0xCB, 0xA0, 0xE9, 0xD0, 0xB4, 0xA0, + 0x68, 0x94, 0xCF, 0xD2, 0x49, 0xF2, 0x23, 0x67, + }; + unsigned char msg[100]; + memset(msg, 0x99, sizeof(msg)); + test_schnorrsig_bip_vectors_check_signing(sk, pk, aux_rand, msg, sizeof(msg), sig); + test_schnorrsig_bip_vectors_check_verify(pk, msg, sizeof(msg), sig, 1); + } } /* Nonce function that returns constant 0 */ From cd54ac7c1cca509404b62e626a6291f434af88e8 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 11 Aug 2022 17:05:23 +0200 Subject: [PATCH 116/557] schnorrsig: Improve docs of schnorrsig_sign_custom --- include/secp256k1_schnorrsig.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h index cd9845c5f6..1ee665fd19 100644 --- a/include/secp256k1_schnorrsig.h +++ b/include/secp256k1_schnorrsig.h @@ -141,8 +141,12 @@ SECP256K1_API int secp256k1_schnorrsig_sign( * variable length messages and accepts a pointer to an extraparams object that * allows customizing signing by passing additional arguments. * - * Creates the same signatures as schnorrsig_sign if msglen is 32 and the - * extraparams.ndata is the same as aux_rand32. + * Equivalent to secp256k1_schnorrsig_sign32(..., aux_rand32) if msglen is 32 + * and extraparams is initialized as follows: + * ``` + * secp256k1_schnorrsig_extraparams extraparams = SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT; + * extraparams.ndata = (unsigned char*)aux_rand32; + * ``` * * Returns 1 on success, 0 on failure. * Args: ctx: pointer to a context object (not secp256k1_context_static). From 1907f0f1664e3a966daa58be956af18e48834ffd Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 11 May 2023 19:08:35 +0200 Subject: [PATCH 117/557] build: Make tests work with external default callbacks --- src/tests.c | 5 +++++ src/tests_exhaustive.c | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/src/tests.c b/src/tests.c index da1f0132e4..64db038c1b 100644 --- a/src/tests.c +++ b/src/tests.c @@ -10,7 +10,12 @@ #include +#ifdef USE_EXTERNAL_DEFAULT_CALLBACKS + #pragma message("Ignoring USE_EXTERNAL_CALLBACKS in tests.") + #undef USE_EXTERNAL_DEFAULT_CALLBACKS +#endif #include "secp256k1.c" + #include "../include/secp256k1.h" #include "../include/secp256k1_preallocated.h" #include "testrand_impl.h" diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index ee60fe9f45..5829dad515 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -13,7 +13,12 @@ #define EXHAUSTIVE_TEST_ORDER 13 #endif +#ifdef USE_EXTERNAL_DEFAULT_CALLBACKS + #pragma message("Ignoring USE_EXTERNAL_CALLBACKS in exhaustive_tests.") + #undef USE_EXTERNAL_DEFAULT_CALLBACKS +#endif #include "secp256k1.c" + #include "../include/secp256k1.h" #include "assumptions.h" #include "group.h" From 5b32602295ff7ad9e1973f96b8ee8344b82f4af0 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sun, 5 Feb 2023 17:19:00 -0500 Subject: [PATCH 118/557] Split fe_set_b32 into reducing and normalizing variants --- src/bench_internal.c | 8 +++---- src/ecdsa_impl.h | 3 ++- src/eckey_impl.h | 4 ++-- src/ecmult_gen_compute_table_impl.h | 2 +- src/ecmult_gen_impl.h | 2 +- src/field.h | 19 +++++++++------ src/field_10x26_impl.h | 5 +++- src/field_5x52_impl.h | 6 ++++- src/field_impl.h | 23 +++++++++++++++---- src/modules/extrakeys/main_impl.h | 2 +- src/modules/extrakeys/tests_exhaustive_impl.h | 2 +- src/modules/recovery/main_impl.h | 2 +- src/modules/schnorrsig/main_impl.h | 2 +- src/secp256k1.c | 4 ++-- src/tests.c | 21 +++++++++-------- src/tests_exhaustive.c | 2 +- 16 files changed, 68 insertions(+), 39 deletions(-) diff --git a/src/bench_internal.c b/src/bench_internal.c index c248ab8ebc..f3686dd289 100644 --- a/src/bench_internal.c +++ b/src/bench_internal.c @@ -65,10 +65,10 @@ static void bench_setup(void* arg) { secp256k1_scalar_set_b32(&data->scalar[0], init[0], NULL); secp256k1_scalar_set_b32(&data->scalar[1], init[1], NULL); - secp256k1_fe_set_b32(&data->fe[0], init[0]); - secp256k1_fe_set_b32(&data->fe[1], init[1]); - secp256k1_fe_set_b32(&data->fe[2], init[2]); - secp256k1_fe_set_b32(&data->fe[3], init[3]); + secp256k1_fe_set_b32_limit(&data->fe[0], init[0]); + secp256k1_fe_set_b32_limit(&data->fe[1], init[1]); + secp256k1_fe_set_b32_limit(&data->fe[2], init[2]); + secp256k1_fe_set_b32_limit(&data->fe[3], init[3]); CHECK(secp256k1_ge_set_xo_var(&data->ge[0], &data->fe[0], 0)); CHECK(secp256k1_ge_set_xo_var(&data->ge[1], &data->fe[1], 1)); secp256k1_gej_set_ge(&data->gej[0], &data->ge[0]); diff --git a/src/ecdsa_impl.h b/src/ecdsa_impl.h index 90b4b22b77..48e30851b5 100644 --- a/src/ecdsa_impl.h +++ b/src/ecdsa_impl.h @@ -239,7 +239,8 @@ static int secp256k1_ecdsa_sig_verify(const secp256k1_scalar *sigr, const secp25 } #else secp256k1_scalar_get_b32(c, sigr); - secp256k1_fe_set_b32(&xr, c); + /* we can ignore the fe_set_b32_limit return value, because we know the input is in range */ + (void)secp256k1_fe_set_b32_limit(&xr, c); /** We now have the recomputed R point in pr, and its claimed x coordinate (modulo n) * in xr. Naively, we would extract the x coordinate from pr (requiring a inversion modulo p), diff --git a/src/eckey_impl.h b/src/eckey_impl.h index e0506d3e2b..b2fe36fe93 100644 --- a/src/eckey_impl.h +++ b/src/eckey_impl.h @@ -17,10 +17,10 @@ static int secp256k1_eckey_pubkey_parse(secp256k1_ge *elem, const unsigned char *pub, size_t size) { if (size == 33 && (pub[0] == SECP256K1_TAG_PUBKEY_EVEN || pub[0] == SECP256K1_TAG_PUBKEY_ODD)) { secp256k1_fe x; - return secp256k1_fe_set_b32(&x, pub+1) && secp256k1_ge_set_xo_var(elem, &x, pub[0] == SECP256K1_TAG_PUBKEY_ODD); + return secp256k1_fe_set_b32_limit(&x, pub+1) && secp256k1_ge_set_xo_var(elem, &x, pub[0] == SECP256K1_TAG_PUBKEY_ODD); } else if (size == 65 && (pub[0] == SECP256K1_TAG_PUBKEY_UNCOMPRESSED || pub[0] == SECP256K1_TAG_PUBKEY_HYBRID_EVEN || pub[0] == SECP256K1_TAG_PUBKEY_HYBRID_ODD)) { secp256k1_fe x, y; - if (!secp256k1_fe_set_b32(&x, pub+1) || !secp256k1_fe_set_b32(&y, pub+33)) { + if (!secp256k1_fe_set_b32_limit(&x, pub+1) || !secp256k1_fe_set_b32_limit(&y, pub+33)) { return 0; } secp256k1_ge_set_xy(elem, &x, &y); diff --git a/src/ecmult_gen_compute_table_impl.h b/src/ecmult_gen_compute_table_impl.h index ff6a2992dc..7d672b9950 100644 --- a/src/ecmult_gen_compute_table_impl.h +++ b/src/ecmult_gen_compute_table_impl.h @@ -31,7 +31,7 @@ static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, cons secp256k1_fe nums_x; secp256k1_ge nums_ge; int r; - r = secp256k1_fe_set_b32(&nums_x, nums_b32); + r = secp256k1_fe_set_b32_limit(&nums_x, nums_b32); (void)r; VERIFY_CHECK(r); r = secp256k1_ge_set_xo_var(&nums_ge, &nums_x, 0); diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 4f5ea9f3c0..deb0323b7a 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -108,7 +108,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const memset(keydata, 0, sizeof(keydata)); /* Accept unobservably small non-uniformity. */ secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); - overflow = !secp256k1_fe_set_b32(&s, nonce32); + overflow = !secp256k1_fe_set_b32_limit(&s, nonce32); overflow |= secp256k1_fe_is_zero(&s); secp256k1_fe_cmov(&s, &secp256k1_fe_one, overflow); /* Randomize the projection to defend against multiplier sidechannels. diff --git a/src/field.h b/src/field.h index 2c8fbc28e3..bbc836b199 100644 --- a/src/field.h +++ b/src/field.h @@ -85,7 +85,8 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_is_zero secp256k1_fe_impl_is_zero # define secp256k1_fe_is_odd secp256k1_fe_impl_is_odd # define secp256k1_fe_cmp_var secp256k1_fe_impl_cmp_var -# define secp256k1_fe_set_b32 secp256k1_fe_impl_set_b32 +# define secp256k1_fe_set_b32_mod secp256k1_fe_impl_set_b32_mod +# define secp256k1_fe_set_b32_limit secp256k1_fe_impl_set_b32_limit # define secp256k1_fe_get_b32 secp256k1_fe_impl_get_b32 # define secp256k1_fe_negate secp256k1_fe_impl_negate # define secp256k1_fe_mul_int secp256k1_fe_impl_mul_int @@ -189,16 +190,20 @@ static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b); */ static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); -/** Set a field element equal to a provided 32-byte big endian value. +/** Set a field element equal to a provided 32-byte big endian value, reducing it. * * On input, r does not need to be initalized. a must be a pointer to an initialized 32-byte array. - * On output, r = a (mod p). It will have magnitude 1, and if (a < p), it will be normalized. - * If not, it will only be weakly normalized. Returns whether (a < p). + * On output, r = a (mod p). It will have magnitude 1, and not be normalized. + */ +static void secp256k1_fe_set_b32_mod(secp256k1_fe *r, const unsigned char *a); + +/** Set a field element equal to a provided 32-byte big endian value, checking for overflow. * - * Note that this function is unusual in that the normalization of the output depends on the - * run-time value of a. + * On input, r does not need to be initalized. a must be a pointer to an initialized 32-byte array. + * On output, r = a if (a < p), it will be normalized with magnitude 1, and 1 is returned. + * If a >= p, 0 is returned, and r will be made invalid (and must not be used without overwriting). */ -static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a); +static int secp256k1_fe_set_b32_limit(secp256k1_fe *r, const unsigned char *a); /** Convert a field element to 32-byte big endian byte array. * On input, a must be a valid normalized field element, and r a pointer to a 32-byte array. diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 3f719c161f..c1b32b80a8 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -290,7 +290,7 @@ static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe * return 0; } -static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { +static void secp256k1_fe_impl_set_b32_mod(secp256k1_fe *r, const unsigned char *a) { r->n[0] = (uint32_t)a[31] | ((uint32_t)a[30] << 8) | ((uint32_t)a[29] << 16) | ((uint32_t)(a[28] & 0x3) << 24); r->n[1] = (uint32_t)((a[28] >> 2) & 0x3f) | ((uint32_t)a[27] << 6) | ((uint32_t)a[26] << 14) | ((uint32_t)(a[25] & 0xf) << 22); r->n[2] = (uint32_t)((a[25] >> 4) & 0xf) | ((uint32_t)a[24] << 4) | ((uint32_t)a[23] << 12) | ((uint32_t)(a[22] & 0x3f) << 20); @@ -301,7 +301,10 @@ static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { r->n[7] = (uint32_t)((a[9] >> 6) & 0x3) | ((uint32_t)a[8] << 2) | ((uint32_t)a[7] << 10) | ((uint32_t)a[6] << 18); r->n[8] = (uint32_t)a[5] | ((uint32_t)a[4] << 8) | ((uint32_t)a[3] << 16) | ((uint32_t)(a[2] & 0x3) << 24); r->n[9] = (uint32_t)((a[2] >> 2) & 0x3f) | ((uint32_t)a[1] << 6) | ((uint32_t)a[0] << 14); +} +static int secp256k1_fe_impl_set_b32_limit(secp256k1_fe *r, const unsigned char *a) { + secp256k1_fe_impl_set_b32_mod(r, a); return !((r->n[9] == 0x3FFFFFUL) & ((r->n[8] & r->n[7] & r->n[6] & r->n[5] & r->n[4] & r->n[3] & r->n[2]) == 0x3FFFFFFUL) & ((r->n[1] + 0x40UL + ((r->n[0] + 0x3D1UL) >> 26)) > 0x3FFFFFFUL)); } diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index a44a64b5a1..0a4cc1a630 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -236,7 +236,7 @@ static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe * return 0; } -static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { +static void secp256k1_fe_impl_set_b32_mod(secp256k1_fe *r, const unsigned char *a) { r->n[0] = (uint64_t)a[31] | ((uint64_t)a[30] << 8) | ((uint64_t)a[29] << 16) @@ -271,6 +271,10 @@ static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a) { | ((uint64_t)a[2] << 24) | ((uint64_t)a[1] << 32) | ((uint64_t)a[0] << 40); +} + +static int secp256k1_fe_impl_set_b32_limit(secp256k1_fe *r, const unsigned char *a) { + secp256k1_fe_impl_set_b32_mod(r, a); return !((r->n[4] == 0x0FFFFFFFFFFFFULL) & ((r->n[3] & r->n[2] & r->n[1]) == 0xFFFFFFFFFFFFFULL) & (r->n[0] >= 0xFFFFEFFFFFC2FULL)); } diff --git a/src/field_impl.h b/src/field_impl.h index c082d8f553..7270375007 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -260,13 +260,26 @@ SECP256K1_INLINE static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const se return secp256k1_fe_impl_cmp_var(a, b); } -static int secp256k1_fe_impl_set_b32(secp256k1_fe *r, const unsigned char *a); -SECP256K1_INLINE static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a) { - int ret = secp256k1_fe_impl_set_b32(r, a); +static void secp256k1_fe_impl_set_b32_mod(secp256k1_fe *r, const unsigned char *a); +SECP256K1_INLINE static void secp256k1_fe_set_b32_mod(secp256k1_fe *r, const unsigned char *a) { + secp256k1_fe_impl_set_b32_mod(r, a); r->magnitude = 1; - r->normalized = ret; + r->normalized = 0; secp256k1_fe_verify(r); - return ret; +} + +static int secp256k1_fe_impl_set_b32_limit(secp256k1_fe *r, const unsigned char *a); +SECP256K1_INLINE static int secp256k1_fe_set_b32_limit(secp256k1_fe *r, const unsigned char *a) { + if (secp256k1_fe_impl_set_b32_limit(r, a)) { + r->magnitude = 1; + r->normalized = 1; + secp256k1_fe_verify(r); + return 1; + } else { + /* Mark the output field element as invalid. */ + r->magnitude = -1; + return 0; + } } static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a); diff --git a/src/modules/extrakeys/main_impl.h b/src/modules/extrakeys/main_impl.h index 7352004457..0c7e266777 100644 --- a/src/modules/extrakeys/main_impl.h +++ b/src/modules/extrakeys/main_impl.h @@ -28,7 +28,7 @@ int secp256k1_xonly_pubkey_parse(const secp256k1_context* ctx, secp256k1_xonly_p memset(pubkey, 0, sizeof(*pubkey)); ARG_CHECK(input32 != NULL); - if (!secp256k1_fe_set_b32(&x, input32)) { + if (!secp256k1_fe_set_b32_limit(&x, input32)) { return 0; } if (!secp256k1_ge_set_xo_var(&pk, &x, 0)) { diff --git a/src/modules/extrakeys/tests_exhaustive_impl.h b/src/modules/extrakeys/tests_exhaustive_impl.h index 5ecc90d50f..d3d817a131 100644 --- a/src/modules/extrakeys/tests_exhaustive_impl.h +++ b/src/modules/extrakeys/tests_exhaustive_impl.h @@ -47,7 +47,7 @@ static void test_exhaustive_extrakeys(const secp256k1_context *ctx, const secp25 CHECK(secp256k1_memcmp_var(xonly_pubkey_bytes[i - 1], buf, 32) == 0); /* Compare the xonly_pubkey bytes against the precomputed group. */ - secp256k1_fe_set_b32(&fe, xonly_pubkey_bytes[i - 1]); + secp256k1_fe_set_b32_mod(&fe, xonly_pubkey_bytes[i - 1]); CHECK(secp256k1_fe_equal_var(&fe, &group[i].x)); /* Check the parity against the precomputed group. */ diff --git a/src/modules/recovery/main_impl.h b/src/modules/recovery/main_impl.h index e7906eb62e..76a005e017 100644 --- a/src/modules/recovery/main_impl.h +++ b/src/modules/recovery/main_impl.h @@ -98,7 +98,7 @@ static int secp256k1_ecdsa_sig_recover(const secp256k1_scalar *sigr, const secp2 } secp256k1_scalar_get_b32(brx, sigr); - r = secp256k1_fe_set_b32(&fx, brx); + r = secp256k1_fe_set_b32_limit(&fx, brx); (void)r; VERIFY_CHECK(r); /* brx comes from a scalar, so is less than the order; certainly less than p */ if (recid & 2) { diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index cd651591c4..4e7b45a045 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -232,7 +232,7 @@ int secp256k1_schnorrsig_verify(const secp256k1_context* ctx, const unsigned cha ARG_CHECK(msg != NULL || msglen == 0); ARG_CHECK(pubkey != NULL); - if (!secp256k1_fe_set_b32(&rx, &sig64[0])) { + if (!secp256k1_fe_set_b32_limit(&rx, &sig64[0])) { return 0; } diff --git a/src/secp256k1.c b/src/secp256k1.c index 086cbc85cd..41b8285736 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -247,8 +247,8 @@ static int secp256k1_pubkey_load(const secp256k1_context* ctx, secp256k1_ge* ge, } else { /* Otherwise, fall back to 32-byte big endian for X and Y. */ secp256k1_fe x, y; - secp256k1_fe_set_b32(&x, pubkey->data); - secp256k1_fe_set_b32(&y, pubkey->data + 32); + secp256k1_fe_set_b32_mod(&x, pubkey->data); + secp256k1_fe_set_b32_mod(&y, pubkey->data + 32); secp256k1_ge_set_xy(ge, &x, &y); } ARG_CHECK(!secp256k1_fe_is_zero(&ge->x)); diff --git a/src/tests.c b/src/tests.c index 64db038c1b..70cee3176b 100644 --- a/src/tests.c +++ b/src/tests.c @@ -90,7 +90,7 @@ static void random_field_element_test(secp256k1_fe *fe) { do { unsigned char b32[32]; secp256k1_testrand256_test(b32); - if (secp256k1_fe_set_b32(fe, b32)) { + if (secp256k1_fe_set_b32_limit(fe, b32)) { break; } } while(1); @@ -2957,7 +2957,7 @@ static void random_fe(secp256k1_fe *x) { unsigned char bin[32]; do { secp256k1_testrand256(bin); - if (secp256k1_fe_set_b32(x, bin)) { + if (secp256k1_fe_set_b32_limit(x, bin)) { return; } } while(1); @@ -2967,7 +2967,7 @@ static void random_fe_test(secp256k1_fe *x) { unsigned char bin[32]; do { secp256k1_testrand256_test(bin); - if (secp256k1_fe_set_b32(x, bin)) { + if (secp256k1_fe_set_b32_limit(x, bin)) { return; } } while(1); @@ -3021,7 +3021,7 @@ static void run_field_convert(void) { unsigned char b322[32]; secp256k1_fe_storage fes2; /* Check conversions to fe. */ - CHECK(secp256k1_fe_set_b32(&fe2, b32)); + CHECK(secp256k1_fe_set_b32_limit(&fe2, b32)); CHECK(secp256k1_fe_equal_var(&fe, &fe2)); secp256k1_fe_from_storage(&fe2, &fes); CHECK(secp256k1_fe_equal_var(&fe, &fe2)); @@ -3043,7 +3043,8 @@ static void run_field_be32_overflow(void) { static const unsigned char zero[32] = { 0x00 }; unsigned char out[32]; secp256k1_fe fe; - CHECK(secp256k1_fe_set_b32(&fe, zero_overflow) == 0); + CHECK(secp256k1_fe_set_b32_limit(&fe, zero_overflow) == 0); + secp256k1_fe_set_b32_mod(&fe, zero_overflow); CHECK(secp256k1_fe_normalizes_to_zero(&fe) == 1); secp256k1_fe_normalize(&fe); CHECK(secp256k1_fe_is_zero(&fe) == 1); @@ -3065,7 +3066,8 @@ static void run_field_be32_overflow(void) { }; unsigned char out[32]; secp256k1_fe fe; - CHECK(secp256k1_fe_set_b32(&fe, one_overflow) == 0); + CHECK(secp256k1_fe_set_b32_limit(&fe, one_overflow) == 0); + secp256k1_fe_set_b32_mod(&fe, one_overflow); secp256k1_fe_normalize(&fe); CHECK(secp256k1_fe_cmp_var(&fe, &secp256k1_fe_one) == 0); secp256k1_fe_get_b32(out, &fe); @@ -3087,7 +3089,8 @@ static void run_field_be32_overflow(void) { unsigned char out[32]; secp256k1_fe fe; const secp256k1_fe fe_ff = SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0x01, 0x000003d0); - CHECK(secp256k1_fe_set_b32(&fe, ff_overflow) == 0); + CHECK(secp256k1_fe_set_b32_limit(&fe, ff_overflow) == 0); + secp256k1_fe_set_b32_mod(&fe, ff_overflow); secp256k1_fe_normalize(&fe); CHECK(secp256k1_fe_cmp_var(&fe, &fe_ff) == 0); secp256k1_fe_get_b32(out, &fe); @@ -3673,7 +3676,7 @@ static void run_inverse_tests(void) b32[31] = i & 0xff; b32[30] = (i >> 8) & 0xff; secp256k1_scalar_set_b32(&x_scalar, b32, NULL); - secp256k1_fe_set_b32(&x_fe, b32); + secp256k1_fe_set_b32_mod(&x_fe, b32); for (var = 0; var <= 1; ++var) { test_inverse_scalar(NULL, &x_scalar, var); test_inverse_field(NULL, &x_fe, var); @@ -3690,7 +3693,7 @@ static void run_inverse_tests(void) for (i = 0; i < 64 * COUNT; ++i) { (testrand ? secp256k1_testrand256_test : secp256k1_testrand256)(b32); secp256k1_scalar_set_b32(&x_scalar, b32, NULL); - secp256k1_fe_set_b32(&x_fe, b32); + secp256k1_fe_set_b32_mod(&x_fe, b32); for (var = 0; var <= 1; ++var) { test_inverse_scalar(NULL, &x_scalar, var); test_inverse_field(NULL, &x_fe, var); diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 5829dad515..d35acdd58e 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -60,7 +60,7 @@ static void random_fe(secp256k1_fe *x) { unsigned char bin[32]; do { secp256k1_testrand256(bin); - if (secp256k1_fe_set_b32(x, bin)) { + if (secp256k1_fe_set_b32_limit(x, bin)) { return; } } while(1); From 0c729ba70d963f2798184b0b8524d7de2f3ced9f Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 12 May 2023 05:15:05 -0400 Subject: [PATCH 119/557] Bugfix: mark outputs as early clobber in scalar x86_64 asm In the existing code, the compiler is allowed to allocate the RSI register for outputs m0, m1, or m2, which are written to before the input in RSI is read from. Fix this by marking them as early clobber. Reported by ehoffman2 in https://github.com/bitcoin-core/secp256k1/issues/766 --- src/scalar_4x64_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index e50ec3ae94..0d342fd847 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -383,7 +383,7 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l) "movq %%r10, %q5\n" /* extract m6 */ "movq %%r8, %q6\n" - : "=g"(m0), "=g"(m1), "=g"(m2), "=g"(m3), "=g"(m4), "=g"(m5), "=g"(m6) + : "=&g"(m0), "=&g"(m1), "=&g"(m2), "=g"(m3), "=g"(m4), "=g"(m5), "=g"(m6) : "S"(l), "i"(SECP256K1_N_C_0), "i"(SECP256K1_N_C_1) : "rax", "rdx", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "cc"); From 350b4bd6e6efd3c62875820fdeb2740738937922 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 12 May 2023 05:17:11 -0400 Subject: [PATCH 120/557] Mark stack variables as early clobber for technical correctness In the field 5x52 asm for x86_64, stack variables are provided as outputs. The existing inputs are all forcibly allocated to registers, so cannot coincide, but mark them as early clobber anyway to make this clearer. --- src/field_5x52_asm_impl.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/field_5x52_asm_impl.h b/src/field_5x52_asm_impl.h index e8efa61085..04a9af2105 100644 --- a/src/field_5x52_asm_impl.h +++ b/src/field_5x52_asm_impl.h @@ -280,7 +280,7 @@ __asm__ __volatile__( "addq %%rsi,%%r8\n" /* r[4] = c */ "movq %%r8,32(%%rdi)\n" -: "+S"(a), "=m"(tmp1), "=m"(tmp2), "=m"(tmp3) +: "+S"(a), "=&m"(tmp1), "=&m"(tmp2), "=&m"(tmp3) : "b"(b), "D"(r) : "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "cc", "memory" ); @@ -495,7 +495,7 @@ __asm__ __volatile__( "addq %%rsi,%%r8\n" /* r[4] = c */ "movq %%r8,32(%%rdi)\n" -: "+S"(a), "=m"(tmp1), "=m"(tmp2), "=m"(tmp3) +: "+S"(a), "=&m"(tmp1), "=&m"(tmp2), "=&m"(tmp3) : "D"(r) : "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "cc", "memory" ); From ed4ba238e2cb2f24301c1add238cf7ff062286c3 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 12 May 2023 10:38:50 +0100 Subject: [PATCH 121/557] cmake: Add `check_arm32_assembly` function --- CMakeLists.txt | 8 +++++++- cmake/CheckArm32Assembly.cmake | 6 ++++++ cmake/source_arm32.s | 9 +++++++++ 3 files changed, 22 insertions(+), 1 deletion(-) create mode 100644 cmake/CheckArm32Assembly.cmake create mode 100644 cmake/source_arm32.s diff --git a/CMakeLists.txt b/CMakeLists.txt index a1d9eb36e3..c764e6423e 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -107,7 +107,13 @@ set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm32") check_string_option_value(SECP256K1_ASM) if(SECP256K1_ASM STREQUAL "arm32") enable_language(ASM) - add_compile_definitions(USE_EXTERNAL_ASM=1) + include(CheckArm32Assembly) + check_arm32_assembly() + if(HAVE_ARM32_ASM) + add_compile_definitions(USE_EXTERNAL_ASM=1) + else() + message(FATAL_ERROR "ARM32 assembly optimization requested but not available.") + endif() elseif(SECP256K1_ASM) include(Check64bitAssembly) check_64bit_assembly() diff --git a/cmake/CheckArm32Assembly.cmake b/cmake/CheckArm32Assembly.cmake new file mode 100644 index 0000000000..15c44b24b0 --- /dev/null +++ b/cmake/CheckArm32Assembly.cmake @@ -0,0 +1,6 @@ +function(check_arm32_assembly) + try_compile(HAVE_ARM32_ASM + ${CMAKE_BINARY_DIR}/check_arm32_assembly + SOURCES ${CMAKE_SOURCE_DIR}/cmake/source_arm32.s + ) +endfunction() diff --git a/cmake/source_arm32.s b/cmake/source_arm32.s new file mode 100644 index 0000000000..d3d9347057 --- /dev/null +++ b/cmake/source_arm32.s @@ -0,0 +1,9 @@ +.syntax unified +.eabi_attribute 24, 1 +.eabi_attribute 25, 1 +.text +.global main +main: + ldr r0, =0x002A + mov r7, #1 + swi 0 From 03246457a8f7091e13af13a50d7ae33cf42e08b5 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 11 May 2023 19:21:51 +0100 Subject: [PATCH 122/557] autotools: Add `SECP_ARM32_ASM_CHECK` macro --- build-aux/m4/bitcoin_secp.m4 | 19 +++++++++++++++++++ configure.ac | 4 ++++ 2 files changed, 23 insertions(+) diff --git a/build-aux/m4/bitcoin_secp.m4 b/build-aux/m4/bitcoin_secp.m4 index 154157ffb4..6d46b9e854 100644 --- a/build-aux/m4/bitcoin_secp.m4 +++ b/build-aux/m4/bitcoin_secp.m4 @@ -9,6 +9,25 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[ AC_MSG_RESULT([$has_64bit_asm]) ]) +AC_DEFUN([SECP_ARM32_ASM_CHECK], [ + AC_MSG_CHECKING(for ARM32 assembly availability) + SECP_ARM32_ASM_CHECK_CFLAGS_saved_CFLAGS="$CFLAGS" + CFLAGS="-x assembler" + AC_LINK_IFELSE([AC_LANG_SOURCE([[ + .syntax unified + .eabi_attribute 24, 1 + .eabi_attribute 25, 1 + .text + .global main + main: + ldr r0, =0x002A + mov r7, #1 + swi 0 + ]])], [has_arm32_asm=yes], [has_arm32_asm=no]) + AC_MSG_RESULT([$has_arm32_asm]) + CFLAGS="$SECP_ARM32_ASM_CHECK_CFLAGS_saved_CFLAGS" +]) + AC_DEFUN([SECP_VALGRIND_CHECK],[ AC_MSG_CHECKING([for valgrind support]) if test x"$has_valgrind" != x"yes"; then diff --git a/configure.ac b/configure.ac index 0b99aa3a98..c898b9239a 100644 --- a/configure.ac +++ b/configure.ac @@ -280,6 +280,10 @@ else fi ;; arm32) + SECP_ARM32_ASM_CHECK + if test x"$has_arm32_asm" != x"yes"; then + AC_MSG_ERROR([ARM32 assembly optimization requested but not available]) + fi ;; no) ;; From 8c9ae37a5a26cdeb6365624fee43f41b238830e4 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 12 May 2023 05:47:59 -0400 Subject: [PATCH 123/557] Add release note --- CHANGELOG.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 6d23662a93..f1ebb6f2c0 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Fixed + - Fixed an old bug that permitted compilers to potentially output bad assembly code on x86_64. In theory, it could lead to a crash or a read of unrelated memory, but this has never been observed on any compilers so far. + ## [0.3.1] - 2023-04-10 We strongly recommend updating to 0.3.1 if you use or plan to use Clang >=14 to compile libsecp256k1, e.g., Xcode >=14 on macOS has Clang >=14. When in doubt, check the Clang version using `clang -v`. From c6bb29b3037c6b5264f2d2916c5a2d38de25df19 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 12 May 2023 10:50:18 +0100 Subject: [PATCH 124/557] build: Rename `64bit` to `x86_64` --- CMakeLists.txt | 6 +++--- build-aux/m4/bitcoin_secp.m4 | 6 +++--- ...Check64bitAssembly.cmake => CheckX86_64Assembly.cmake} | 6 +++--- configure.ac | 8 ++++---- 4 files changed, 13 insertions(+), 13 deletions(-) rename cmake/{Check64bitAssembly.cmake => CheckX86_64Assembly.cmake} (70%) diff --git a/CMakeLists.txt b/CMakeLists.txt index c764e6423e..f1dac7b248 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -115,9 +115,9 @@ if(SECP256K1_ASM STREQUAL "arm32") message(FATAL_ERROR "ARM32 assembly optimization requested but not available.") endif() elseif(SECP256K1_ASM) - include(Check64bitAssembly) - check_64bit_assembly() - if(HAS_64BIT_ASM) + include(CheckX86_64Assembly) + check_x86_64_assembly() + if(HAVE_X86_64_ASM) set(SECP256K1_ASM "x86_64") add_compile_definitions(USE_ASM_X86_64=1) elseif(SECP256K1_ASM STREQUAL "AUTO") diff --git a/build-aux/m4/bitcoin_secp.m4 b/build-aux/m4/bitcoin_secp.m4 index 6d46b9e854..11adef4f22 100644 --- a/build-aux/m4/bitcoin_secp.m4 +++ b/build-aux/m4/bitcoin_secp.m4 @@ -1,12 +1,12 @@ dnl escape "$0x" below using the m4 quadrigaph @S|@, and escape it again with a \ for the shell. -AC_DEFUN([SECP_64BIT_ASM_CHECK],[ +AC_DEFUN([SECP_X86_64_ASM_CHECK],[ AC_MSG_CHECKING(for x86_64 assembly availability) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include ]],[[ uint64_t a = 11, tmp; __asm__ __volatile__("movq \@S|@0x100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx"); - ]])],[has_64bit_asm=yes],[has_64bit_asm=no]) -AC_MSG_RESULT([$has_64bit_asm]) + ]])], [has_x86_64_asm=yes], [has_x86_64_asm=no]) +AC_MSG_RESULT([$has_x86_64_asm]) ]) AC_DEFUN([SECP_ARM32_ASM_CHECK], [ diff --git a/cmake/Check64bitAssembly.cmake b/cmake/CheckX86_64Assembly.cmake similarity index 70% rename from cmake/Check64bitAssembly.cmake rename to cmake/CheckX86_64Assembly.cmake index 3f65887765..ae82cd476e 100644 --- a/cmake/Check64bitAssembly.cmake +++ b/cmake/CheckX86_64Assembly.cmake @@ -1,6 +1,6 @@ include(CheckCSourceCompiles) -function(check_64bit_assembly) +function(check_x86_64_assembly) check_c_source_compiles(" #include @@ -9,6 +9,6 @@ function(check_64bit_assembly) uint64_t a = 11, tmp; __asm__ __volatile__(\"movq $0x100000000,%1; mulq %%rsi\" : \"+a\"(a) : \"S\"(tmp) : \"cc\", \"%rdx\"); } - " HAS_64BIT_ASM) - set(HAS_64BIT_ASM ${HAS_64BIT_ASM} PARENT_SCOPE) + " HAVE_X86_64_ASM) + set(HAVE_X86_64_ASM ${HAVE_X86_64_ASM} PARENT_SCOPE) endfunction() diff --git a/configure.ac b/configure.ac index c898b9239a..3db87be164 100644 --- a/configure.ac +++ b/configure.ac @@ -263,8 +263,8 @@ else fi if test x"$req_asm" = x"auto"; then - SECP_64BIT_ASM_CHECK - if test x"$has_64bit_asm" = x"yes"; then + SECP_X86_64_ASM_CHECK + if test x"$has_x86_64_asm" = x"yes"; then set_asm=x86_64 fi if test x"$set_asm" = x; then @@ -274,8 +274,8 @@ else set_asm=$req_asm case $set_asm in x86_64) - SECP_64BIT_ASM_CHECK - if test x"$has_64bit_asm" != x"yes"; then + SECP_X86_64_ASM_CHECK + if test x"$has_x86_64_asm" != x"yes"; then AC_MSG_ERROR([x86_64 assembly optimization requested but not available]) fi ;; From 76b43f3443a9f87ff924f3d96fa14ec02576126d Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 12 May 2023 16:04:16 +0200 Subject: [PATCH 125/557] changelog: Add entry for #1303 --- CHANGELOG.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index f1ebb6f2c0..aa1371f10f 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Security + - Module `ecdh`: Fix "constant-timeness" issue with GCC 13.1 (and potentially future versions of GCC) that could leave applications using libsecp256k1's ECDH module vulnerable to a timing side-channel attack. The fix avoids secret-dependent control flow during ECDH computations when libsecp256k1 is compiled with GCC 13.1. + #### Fixed - Fixed an old bug that permitted compilers to potentially output bad assembly code on x86_64. In theory, it could lead to a crash or a read of unrelated memory, but this has never been observed on any compilers so far. From 3ad1027a4034da674aeee2a92dfba69b347bbe91 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 12 May 2023 15:05:57 +0000 Subject: [PATCH 126/557] Revert "Remove unused scratch space from API" This reverts commit 712e7f8722eba5dec2bc6b37d75aadeb6f6e633b. --- include/secp256k1.h | 36 ++++++++++++++++++++++++++++++++++++ src/scratch.h | 2 -- src/secp256k1.c | 4 ++-- 3 files changed, 38 insertions(+), 4 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index d5450e2998..a7a2be7a3a 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -49,6 +49,19 @@ extern "C" { */ typedef struct secp256k1_context_struct secp256k1_context; +/** Opaque data structure that holds rewritable "scratch space" + * + * The purpose of this structure is to replace dynamic memory allocations, + * because we target architectures where this may not be available. It is + * essentially a resizable (within specified parameters) block of bytes, + * which is initially created either by memory allocation or TODO as a pointer + * into some fixed rewritable space. + * + * Unlike the context object, this cannot safely be shared between threads + * without additional synchronization logic. + */ +typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space; + /** Opaque data structure that holds a parsed and valid public key. * * The exact representation of data inside is implementation defined and not @@ -372,6 +385,29 @@ SECP256K1_API void secp256k1_context_set_error_callback( const void *data ) SECP256K1_ARG_NONNULL(1); +/** Create a secp256k1 scratch space object. + * + * Returns: a newly created scratch space. + * Args: ctx: an existing context object. + * In: size: amount of memory to be available as scratch space. Some extra + * (<100 bytes) will be allocated for extra accounting. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space *secp256k1_scratch_space_create( + const secp256k1_context *ctx, + size_t size +) SECP256K1_ARG_NONNULL(1); + +/** Destroy a secp256k1 scratch space. + * + * The pointer may not be used afterwards. + * Args: ctx: a secp256k1 context object. + * scratch: space to destroy + */ +SECP256K1_API void secp256k1_scratch_space_destroy( + const secp256k1_context *ctx, + secp256k1_scratch_space *scratch +) SECP256K1_ARG_NONNULL(1); + /** Parse a variable-length public key into the pubkey object. * * Returns: 1 if the public key was fully valid. diff --git a/src/scratch.h b/src/scratch.h index 6164330b39..9dcb7581f6 100644 --- a/src/scratch.h +++ b/src/scratch.h @@ -21,8 +21,6 @@ typedef struct secp256k1_scratch_space_struct { size_t max_size; } secp256k1_scratch; -typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space; - static secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t max_size); static void secp256k1_scratch_destroy(const secp256k1_callback* error_callback, secp256k1_scratch* scratch); diff --git a/src/secp256k1.c b/src/secp256k1.c index 41b8285736..bdbd97cc40 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -219,12 +219,12 @@ void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(co ctx->error_callback.data = data; } -static secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) { +secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) { VERIFY_CHECK(ctx != NULL); return secp256k1_scratch_create(&ctx->error_callback, max_size); } -static void secp256k1_scratch_space_destroy(const secp256k1_context *ctx, secp256k1_scratch_space* scratch) { +void secp256k1_scratch_space_destroy(const secp256k1_context *ctx, secp256k1_scratch_space* scratch) { VERIFY_CHECK(ctx != NULL); secp256k1_scratch_destroy(&ctx->error_callback, scratch); } From 697e1ccf4af7672d45d5ce61cd7d07764a1c8b90 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 12 May 2023 16:04:30 +0200 Subject: [PATCH 127/557] changelog: Catch up --- CHANGELOG.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index aa1371f10f..265fb88492 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -13,6 +13,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 #### Fixed - Fixed an old bug that permitted compilers to potentially output bad assembly code on x86_64. In theory, it could lead to a crash or a read of unrelated memory, but this has never been observed on any compilers so far. +#### Changed + - Various improvements and changes to CMake builds. CMake builds remain experimental. + - Made API versioning consistent with GNU Autotools builds. + - Switched to `BUILD_SHARED_LIBS` variable for controlling whether to build a static or a shared library. + - Added `SECP256K1_INSTALL` variable for the controlling whether to install the build artefacts. + - Renamed asm build option `arm` to `arm32`. Use `--with-asm=arm32` instead of `--with-asm=arm` (GNU Autotools), and `-DSECP256K1_ASM=arm32` instead of `-DSECP256K1_ASM=arm` (CMake). + ## [0.3.1] - 2023-04-10 We strongly recommend updating to 0.3.1 if you use or plan to use Clang >=14 to compile libsecp256k1, e.g., Xcode >=14 on macOS has Clang >=14. When in doubt, check the Clang version using `clang -v`. From d490ca2046be118258c6a0617c3461c913d1f208 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 12 May 2023 17:27:36 +0200 Subject: [PATCH 128/557] release: Prepare for 0.3.2 --- CHANGELOG.md | 9 +++++++-- configure.ac | 2 +- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 265fb88492..6c5dbb843a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,7 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.3.2] - 2023-05-13 +We strongly recommend updating to 0.3.2 if you use or plan to use GCC >=13 to compile libsecp256k1. When in doubt, check the GCC version using `gcc -v`. #### Security - Module `ecdh`: Fix "constant-timeness" issue with GCC 13.1 (and potentially future versions of GCC) that could leave applications using libsecp256k1's ECDH module vulnerable to a timing side-channel attack. The fix avoids secret-dependent control flow during ECDH computations when libsecp256k1 is compiled with GCC 13.1. @@ -20,6 +21,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - Added `SECP256K1_INSTALL` variable for the controlling whether to install the build artefacts. - Renamed asm build option `arm` to `arm32`. Use `--with-asm=arm32` instead of `--with-asm=arm` (GNU Autotools), and `-DSECP256K1_ASM=arm32` instead of `-DSECP256K1_ASM=arm` (CMake). +#### ABI Compatibility +The ABI is compatible with versions 0.3.0 and 0.3.1. + ## [0.3.1] - 2023-04-10 We strongly recommend updating to 0.3.1 if you use or plan to use Clang >=14 to compile libsecp256k1, e.g., Xcode >=14 on macOS has Clang >=14. When in doubt, check the Clang version using `clang -v`. @@ -81,7 +85,8 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.1...HEAD +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...HEAD +[0.3.2]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.1...v0.3.2 [0.3.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.0...v0.3.1 [0.3.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.2.0...v0.3.0 [0.2.0]: https://github.com/bitcoin-core/secp256k1/compare/423b6d19d373f1224fd671a982584d7e7900bc93..v0.2.0 diff --git a/configure.ac b/configure.ac index 3db87be164..e55be15030 100644 --- a/configure.ac +++ b/configure.ac @@ -6,7 +6,7 @@ AC_PREREQ([2.60]) define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 3) define(_PKG_VERSION_PATCH, 2) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: From 95448ef2f8a162c06b9cd566ce935164b14c6840 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sat, 13 May 2023 13:46:09 -0400 Subject: [PATCH 129/557] release cleanup: bump version after 0.3.2 --- CHANGELOG.md | 2 ++ CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 6c5dbb843a..8e31edc6ee 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.3.2] - 2023-05-13 We strongly recommend updating to 0.3.2 if you use or plan to use GCC >=13 to compile libsecp256k1. When in doubt, check the GCC version using `gcc -v`. diff --git a/CMakeLists.txt b/CMakeLists.txt index f1dac7b248..c897022e8e 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.3.2 + VERSION 0.3.3 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -35,7 +35,7 @@ endif() # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 2) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 2) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 3) set(${PROJECT_NAME}_LIB_VERSION_AGE 0) set(CMAKE_C_STANDARD 90) diff --git a/configure.ac b/configure.ac index e55be15030..799b51d1f9 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 3) -define(_PKG_VERSION_PATCH, 2) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 3) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 2) -define(_LIB_VERSION_REVISION, 2) +define(_LIB_VERSION_REVISION, 3) define(_LIB_VERSION_AGE, 0) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 31b4bbee1e115865a8a3aff6ccf04f6108371c5d Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 15 May 2023 09:36:55 -0400 Subject: [PATCH 130/557] Make fe_cmov take max of magnitudes --- src/field.h | 4 +++- src/field_impl.h | 6 ++---- src/tests.c | 26 ++++++++++++++------------ 3 files changed, 19 insertions(+), 17 deletions(-) diff --git a/src/field.h b/src/field.h index bbc836b199..ee51188ef4 100644 --- a/src/field.h +++ b/src/field.h @@ -310,7 +310,9 @@ static void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_f * * On input, both r and a must be valid field elements. Flag must be 0 or 1. * Performs {r = flag ? a : r}. - * On output, r's magnitude and normalized will equal a's in case of flag=1, unchanged otherwise. + * + * On output, r's magnitude will be the maximum of both input magnitudes. + * It will be normalized if and only if both inputs were normalized. */ static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag); diff --git a/src/field_impl.h b/src/field_impl.h index 7270375007..f9769a4a39 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -352,10 +352,8 @@ SECP256K1_INLINE static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_ secp256k1_fe_verify(a); secp256k1_fe_verify(r); secp256k1_fe_impl_cmov(r, a, flag); - if (flag) { - r->magnitude = a->magnitude; - r->normalized = a->normalized; - } + if (a->magnitude > r->magnitude) r->magnitude = a->magnitude; + if (!a->normalized) r->normalized = 0; secp256k1_fe_verify(r); } diff --git a/src/tests.c b/src/tests.c index 70cee3176b..43ce73ec96 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3101,10 +3101,6 @@ static void run_field_be32_overflow(void) { /* Returns true if two field elements have the same representation. */ static int fe_identical(const secp256k1_fe *a, const secp256k1_fe *b) { int ret = 1; -#ifdef VERIFY - ret &= (a->magnitude == b->magnitude); - ret &= (a->normalized == b->normalized); -#endif /* Compare the struct member that holds the limbs. */ ret &= (secp256k1_memcmp_var(a->n, b->n, sizeof(a->n)) == 0); return ret; @@ -3192,16 +3188,22 @@ static void run_field_misc(void) { q = x; secp256k1_fe_cmov(&x, &z, 0); #ifdef VERIFY - CHECK(x.normalized && x.magnitude == 1); + CHECK(!x.normalized); + CHECK((x.magnitude == q.magnitude) || (x.magnitude == z.magnitude)); + CHECK((x.magnitude >= q.magnitude) && (x.magnitude >= z.magnitude)); #endif + x = q; secp256k1_fe_cmov(&x, &x, 1); CHECK(!fe_identical(&x, &z)); CHECK(fe_identical(&x, &q)); secp256k1_fe_cmov(&q, &z, 1); #ifdef VERIFY - CHECK(!q.normalized && q.magnitude == z.magnitude); + CHECK(!q.normalized); + CHECK((q.magnitude == x.magnitude) || (q.magnitude == z.magnitude)); + CHECK((q.magnitude >= x.magnitude) && (q.magnitude >= z.magnitude)); #endif CHECK(fe_identical(&q, &z)); + q = z; secp256k1_fe_normalize_var(&x); secp256k1_fe_normalize_var(&z); CHECK(!secp256k1_fe_equal_var(&x, &z)); @@ -3215,7 +3217,7 @@ static void run_field_misc(void) { secp256k1_fe_normalize_var(&q); secp256k1_fe_cmov(&q, &z, (j&1)); #ifdef VERIFY - CHECK((q.normalized != (j&1)) && q.magnitude == ((j&1) ? z.magnitude : 1)); + CHECK(!q.normalized && q.magnitude == z.magnitude); #endif } secp256k1_fe_normalize_var(&z); @@ -7558,23 +7560,23 @@ static void fe_cmov_test(void) { secp256k1_fe a = zero; secp256k1_fe_cmov(&r, &a, 0); - CHECK(secp256k1_memcmp_var(&r, &max, sizeof(r)) == 0); + CHECK(fe_identical(&r, &max)); r = zero; a = max; secp256k1_fe_cmov(&r, &a, 1); - CHECK(secp256k1_memcmp_var(&r, &max, sizeof(r)) == 0); + CHECK(fe_identical(&r, &max)); a = zero; secp256k1_fe_cmov(&r, &a, 1); - CHECK(secp256k1_memcmp_var(&r, &zero, sizeof(r)) == 0); + CHECK(fe_identical(&r, &zero)); a = one; secp256k1_fe_cmov(&r, &a, 1); - CHECK(secp256k1_memcmp_var(&r, &one, sizeof(r)) == 0); + CHECK(fe_identical(&r, &one)); r = one; a = zero; secp256k1_fe_cmov(&r, &a, 0); - CHECK(secp256k1_memcmp_var(&r, &one, sizeof(r)) == 0); + CHECK(fe_identical(&r, &one)); } static void fe_storage_cmov_test(void) { From 5768b502291ed4214cf84b7d80ff540ed57d45c4 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 17 May 2023 23:28:36 +0200 Subject: [PATCH 131/557] build: Enable -DVERIFY for precomputation binaries --- Makefile.am | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile.am b/Makefile.am index 29b8a69cfb..51484a0eec 100644 --- a/Makefile.am +++ b/Makefile.am @@ -189,11 +189,11 @@ EXTRA_PROGRAMS = precompute_ecmult precompute_ecmult_gen CLEANFILES = $(EXTRA_PROGRAMS) precompute_ecmult_SOURCES = src/precompute_ecmult.c -precompute_ecmult_CPPFLAGS = $(SECP_CONFIG_DEFINES) +precompute_ecmult_CPPFLAGS = $(SECP_CONFIG_DEFINES) -DVERIFY precompute_ecmult_LDADD = $(COMMON_LIB) precompute_ecmult_gen_SOURCES = src/precompute_ecmult_gen.c -precompute_ecmult_gen_CPPFLAGS = $(SECP_CONFIG_DEFINES) +precompute_ecmult_gen_CPPFLAGS = $(SECP_CONFIG_DEFINES) -DVERIFY precompute_ecmult_gen_LDADD = $(COMMON_LIB) # See Automake manual, Section "Errors with distclean". From 6433175ffe2435bcee7333e21480e4194083caae Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 15 May 2023 07:21:34 -0400 Subject: [PATCH 132/557] Do not invoke fe_is_zero on failed set_b32_limit --- src/ecmult_gen_impl.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index deb0323b7a..af412173e9 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -87,7 +87,6 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const secp256k1_fe s; unsigned char nonce32[32]; secp256k1_rfc6979_hmac_sha256 rng; - int overflow; unsigned char keydata[64]; if (seed32 == NULL) { /* When seed is NULL, reset the initial point and blinding value. */ @@ -106,11 +105,9 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const memcpy(keydata + 32, seed32, 32); secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, 64); memset(keydata, 0, sizeof(keydata)); - /* Accept unobservably small non-uniformity. */ secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); - overflow = !secp256k1_fe_set_b32_limit(&s, nonce32); - overflow |= secp256k1_fe_is_zero(&s); - secp256k1_fe_cmov(&s, &secp256k1_fe_one, overflow); + secp256k1_fe_set_b32_mod(&s, nonce32); + secp256k1_fe_cmov(&s, &secp256k1_fe_one, secp256k1_fe_normalizes_to_zero(&s)); /* Randomize the projection to defend against multiplier sidechannels. Do this before our own call to secp256k1_ecmult_gen below. */ secp256k1_gej_rescale(&ctx->initial, &s); From 27504d5c941df89bc828067248270179c9dcb04b Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 24 May 2023 14:24:17 +0200 Subject: [PATCH 133/557] ci: Move wine prefix to /tmp to avoid error D8037 in cl.exe Don't ask me why this makes a difference. It may be some permission problem even though everything in Cirrus CI runs as root anyway. In any case, I'll probably get mad if I investigate this further. Fixes #1326. --- ci/linux-debian.Dockerfile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index a83a4e36db..3c1be414f9 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -31,7 +31,9 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ python3 msvc-wine/vsdownload.py --accept-license --dest /opt/msvc Microsoft.VisualStudio.Workload.VCTools && \ msvc-wine/install.sh /opt/msvc -# Initialize the wine environment. Wait until the wineserver process has +# Moving the wine prefix to /tmp avoids error D8037 when invoking cl.exe. +ENV WINEPREFIX=/tmp/wineprefix +# Initialize the wine prefix. Wait until the wineserver process has # exited before closing the session, to avoid corrupting the wine prefix. RUN wine64 wineboot --init && \ while (ps -A | grep wineserver) > /dev/null; do sleep 1; done From 165206789bc1ff1a95f62d9cd3ed79169b884d67 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 12 May 2023 14:06:12 +0000 Subject: [PATCH 134/557] release process: add sanity checks --- doc/release-process.md | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/doc/release-process.md b/doc/release-process.md index 79dc36ecc3..757b8576a0 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -12,6 +12,27 @@ It is best if the maintainers are present during the release, so they can help e This process also assumes that there will be no minor releases for old major releases. +## Sanity Checks +Perform these checks before creating a release: + +1. Ensure `make distcheck` doesn't fail. +```shell +./autogen.sh && ./configure --enable-dev-mode && make distcheck +``` +2. Check installation with autotools: +```shell +dir=$(mktemp -d) +./autogen.sh && ./configure --prefix=$dir && make clean && make install && ls -l $dir/include $dir/lib +gcc -o ecdsa examples/ecdsa.c $(PKG_CONFIG_PATH=$dir/lib/pkgconfig pkg-config --cflags --libs libsecp256k1) -Wl,-rpath,"$dir/lib" && ./ecdsa +``` +3. Check installation with CMake: +```shell +dir=$(mktemp -d) +build=$(mktemp -d) +cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -l $dir/include $dir/lib* +gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rpath,"$dir/lib",-rpath,"$dir/lib64" && ./ecdsa +``` + ## Regular release 1. Open a PR to the master branch with a commit (using message `"release: prepare for $MAJOR.$MINOR.$PATCH"`, for example) that From 79fa50b082dd28dd4282d6211d52130db317389b Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 12 May 2023 14:19:52 +0000 Subject: [PATCH 135/557] release process: mention targeted release schedule --- doc/release-process.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/doc/release-process.md b/doc/release-process.md index 757b8576a0..627cf9e403 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -12,6 +12,8 @@ It is best if the maintainers are present during the release, so they can help e This process also assumes that there will be no minor releases for old major releases. +We aim to cut a regular release every 3-4 months, approximately twice as frequent as major Bitcoin Core releases. Every second release should be published one month before the feature freeze of the next major Bitcoin Core release, allowing sufficient time to update the library in Core. + ## Sanity Checks Perform these checks before creating a release: From 6348bc7eeed8dbd9cb9bd5df643451a37392bae3 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 12 May 2023 14:20:07 +0000 Subject: [PATCH 136/557] release process: fix process for maintenance release --- doc/release-process.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/doc/release-process.md b/doc/release-process.md index 627cf9e403..751875910b 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -60,14 +60,14 @@ gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rp Note that bugfixes only need to be backported to releases for which no compatible release without the bug exists. -1. If `$PATCH = 1`, create maintenance branch `$MAJOR.$MINOR`: +1. If there's no maintenance branch `$MAJOR.$MINOR`, create one: ``` - git checkout -b $MAJOR.$MINOR v$MAJOR.$MINOR.0 + git checkout -b $MAJOR.$MINOR v$MAJOR.$MINOR.$((PATCH - 1)) git push git@github.com:bitcoin-core/secp256k1.git $MAJOR.$MINOR ``` 2. Open a pull request to the `$MAJOR.$MINOR` branch that * includes the bugfixes, - * finalizes the release notes, + * finalizes the release notes similar to a regular release, * increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac` and the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt` (with commit message `"release: bump versions for $MAJOR.$MINOR.$PATCH"`, for example). From ad846032973cc1afd360613626c4e475bba66f56 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 12 May 2023 15:23:08 +0000 Subject: [PATCH 137/557] release process: clarify change log updates --- doc/release-process.md | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/doc/release-process.md b/doc/release-process.md index 751875910b..ea6087c9ff 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -38,7 +38,10 @@ gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rp ## Regular release 1. Open a PR to the master branch with a commit (using message `"release: prepare for $MAJOR.$MINOR.$PATCH"`, for example) that - * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) (make sure to include an entry for `### ABI Compatibility`), + * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) by + * adding a section for the release (make sure that the version number is a link to a diff between the previous and new version), + * removing the `[Unreleased]` section header, and + * including an entry for `### ABI Compatibility` if it doesn't exist that mentions the library soname of the release, * sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and * if this is not a patch release * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` in `configure.ac` and @@ -50,8 +53,9 @@ gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rp git push git@github.com:bitcoin-core/secp256k1.git v$MAJOR.$MINOR.$PATCH ``` 3. Open a PR to the master branch with a commit (using message `"release cleanup: bump version after $MAJOR.$MINOR.$PATCH"`, for example) that - * sets `_PKG_VERSION_IS_RELEASE` to `false` and increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac`, and - * increments the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt`. + * sets `_PKG_VERSION_IS_RELEASE` to `false` and increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac`, + * increments the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt`, and + * adds an `[Unreleased]` section header to the [CHANGELOG.md](../CHANGELOG.md). If other maintainers are not present to approve the PR, it can be merged without ACKs. 4. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). From 05873bb6b1041227f413626717b7af69fb6176ef Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 23 May 2023 18:32:15 +0000 Subject: [PATCH 138/557] tweak_add: fix API doc for tweak=0 --- include/secp256k1.h | 16 ++++++++-------- include/secp256k1_extrakeys.h | 16 ++++++++-------- 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index a7a2be7a3a..398eb32d08 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -733,10 +733,10 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_negate( * invalid according to secp256k1_ec_seckey_verify, this * function returns 0. seckey will be set to some unspecified * value if this function returns 0. - * In: tweak32: pointer to a 32-byte tweak. If the tweak is invalid according to - * secp256k1_ec_seckey_verify, this function returns 0. For - * uniformly random 32-byte arrays the chance of being invalid - * is negligible (around 1 in 2^128). + * In: tweak32: pointer to a 32-byte tweak, which must be valid according to + * secp256k1_ec_seckey_verify or 32 zero bytes. For uniformly + * random 32-byte tweaks, the chance of being invalid is + * negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_add( const secp256k1_context *ctx, @@ -761,10 +761,10 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_add( * Args: ctx: pointer to a context object. * In/Out: pubkey: pointer to a public key object. pubkey will be set to an * invalid value if this function returns 0. - * In: tweak32: pointer to a 32-byte tweak. If the tweak is invalid according to - * secp256k1_ec_seckey_verify, this function returns 0. For - * uniformly random 32-byte arrays the chance of being invalid - * is negligible (around 1 in 2^128). + * In: tweak32: pointer to a 32-byte tweak, which must be valid according to + * secp256k1_ec_seckey_verify or 32 zero bytes. For uniformly + * random 32-byte tweaks, the chance of being invalid is + * negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_add( const secp256k1_context *ctx, diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index 52bba240b4..615a3fc30f 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -112,10 +112,10 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_from_pubke * Out: output_pubkey: pointer to a public key to store the result. Will be set * to an invalid value if this function returns 0. * In: internal_pubkey: pointer to an x-only pubkey to apply the tweak to. - * tweak32: pointer to a 32-byte tweak. If the tweak is invalid - * according to secp256k1_ec_seckey_verify, this function - * returns 0. For uniformly random 32-byte arrays the - * chance of being invalid is negligible (around 1 in 2^128). + * tweak32: pointer to a 32-byte tweak, which must be valid + * according to secp256k1_ec_seckey_verify or 32 zero + * bytes. For uniformly random 32-byte tweaks, the chance of + * being invalid is negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add( const secp256k1_context *ctx, @@ -231,10 +231,10 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_pub( * Args: ctx: pointer to a context object. * In/Out: keypair: pointer to a keypair to apply the tweak to. Will be set to * an invalid value if this function returns 0. - * In: tweak32: pointer to a 32-byte tweak. If the tweak is invalid according - * to secp256k1_ec_seckey_verify, this function returns 0. For - * uniformly random 32-byte arrays the chance of being invalid - * is negligible (around 1 in 2^128). + * In: tweak32: pointer to a 32-byte tweak, which must be valid according to + * secp256k1_ec_seckey_verify or 32 zero bytes. For uniformly + * random 32-byte tweaks, the chance of being invalid is + * negligible (around 1 in 2^128). */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_tweak_add( const secp256k1_context *ctx, From 1549db0ca5193b8ba5d8f7478d54af2ca4b36c7e Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 24 May 2023 16:57:32 +0100 Subject: [PATCH 139/557] build: Level up MSVC warnings --- CMakeLists.txt | 6 +++++- configure.ac | 7 ++++++- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index c897022e8e..240557f7dc 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -212,8 +212,12 @@ endif() include(TryAppendCFlags) if(MSVC) # Keep the following commands ordered lexicographically. - try_append_c_flags(/W2) # Moderate warning level. + try_append_c_flags(/W3) # Production quality warning level. try_append_c_flags(/wd4146) # Disable warning C4146 "unary minus operator applied to unsigned type, result still unsigned". + try_append_c_flags(/wd4244) # Disable warning C4244 "'conversion' conversion from 'type1' to 'type2', possible loss of data". + try_append_c_flags(/wd4267) # Disable warning C4267 "'var' : conversion from 'size_t' to 'type', possible loss of data". + # Eliminate deprecation warnings for the older, less secure functions. + add_compile_definitions(_CRT_SECURE_NO_WARNINGS) else() # Keep the following commands ordered lexicographically. try_append_c_flags(-pedantic) diff --git a/configure.ac b/configure.ac index 799b51d1f9..fe3ef90f20 100644 --- a/configure.ac +++ b/configure.ac @@ -121,7 +121,12 @@ AC_DEFUN([SECP_TRY_APPEND_DEFAULT_CFLAGS], [ # libtool makes the same assumption internally. # Note that "/opt" and "-opt" are equivalent for MSVC; we use "-opt" because "/opt" looks like a path. if test x"$GCC" != x"yes" && test x"$build_windows" = x"yes"; then - SECP_TRY_APPEND_CFLAGS([-W2 -wd4146], $1) # Moderate warning level, disable warning C4146 "unary minus operator applied to unsigned type, result still unsigned" + SECP_TRY_APPEND_CFLAGS([-W3], $1) # Production quality warning level. + SECP_TRY_APPEND_CFLAGS([-wd4146], $1) # Disable warning C4146 "unary minus operator applied to unsigned type, result still unsigned". + SECP_TRY_APPEND_CFLAGS([-wd4244], $1) # Disable warning C4244 "'conversion' conversion from 'type1' to 'type2', possible loss of data". + SECP_TRY_APPEND_CFLAGS([-wd4267], $1) # Disable warning C4267 "'var' : conversion from 'size_t' to 'type', possible loss of data". + # Eliminate deprecation warnings for the older, less secure functions. + CPPFLAGS="-D_CRT_SECURE_NO_WARNINGS $CPPFLAGS" # We pass -ignore:4217 to the MSVC linker to suppress warning 4217 when # importing variables from a statically linked secp256k1. # (See the libtool manual, section "Windows DLLs" for background.) From 654246c63585422a184121a26d42dcae792e87c6 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 29 May 2023 23:59:27 +0200 Subject: [PATCH 140/557] refactor: take use of `secp256k1_scalar_{zero,one}` constants --- src/bench_ecmult.c | 4 +-- src/eckey_impl.h | 8 ++--- src/ecmult_impl.h | 8 ++--- src/tests.c | 81 +++++++++++++++++++--------------------------- 4 files changed, 39 insertions(+), 62 deletions(-) diff --git a/src/bench_ecmult.c b/src/bench_ecmult.c index 27d694a703..8818aa81b5 100644 --- a/src/bench_ecmult.c +++ b/src/bench_ecmult.c @@ -138,12 +138,10 @@ static void bench_ecmult_1p_teardown(void* arg, int iters) { static void bench_ecmult_0p_g(void* arg, int iters) { bench_data* data = (bench_data*)arg; - secp256k1_scalar zero; int i; - secp256k1_scalar_set_int(&zero, 0); for (i = 0; i < iters; ++i) { - secp256k1_ecmult(&data->output[i], NULL, &zero, &data->scalars[(data->offset1+i) % POINTS]); + secp256k1_ecmult(&data->output[i], NULL, &secp256k1_scalar_zero, &data->scalars[(data->offset1+i) % POINTS]); } } diff --git a/src/eckey_impl.h b/src/eckey_impl.h index b2fe36fe93..121966f8b5 100644 --- a/src/eckey_impl.h +++ b/src/eckey_impl.h @@ -59,10 +59,8 @@ static int secp256k1_eckey_privkey_tweak_add(secp256k1_scalar *key, const secp25 static int secp256k1_eckey_pubkey_tweak_add(secp256k1_ge *key, const secp256k1_scalar *tweak) { secp256k1_gej pt; - secp256k1_scalar one; secp256k1_gej_set_ge(&pt, key); - secp256k1_scalar_set_int(&one, 1); - secp256k1_ecmult(&pt, &pt, &one, tweak); + secp256k1_ecmult(&pt, &pt, &secp256k1_scalar_one, tweak); if (secp256k1_gej_is_infinity(&pt)) { return 0; @@ -80,15 +78,13 @@ static int secp256k1_eckey_privkey_tweak_mul(secp256k1_scalar *key, const secp25 } static int secp256k1_eckey_pubkey_tweak_mul(secp256k1_ge *key, const secp256k1_scalar *tweak) { - secp256k1_scalar zero; secp256k1_gej pt; if (secp256k1_scalar_is_zero(tweak)) { return 0; } - secp256k1_scalar_set_int(&zero, 0); secp256k1_gej_set_ge(&pt, key); - secp256k1_ecmult(&pt, &pt, tweak, &zero); + secp256k1_ecmult(&pt, &pt, tweak, &secp256k1_scalar_zero); secp256k1_ge_set_gej(key, &pt); return 1; } diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 72fadf6e3a..f4624677d7 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -770,14 +770,12 @@ static size_t secp256k1_pippenger_max_points(const secp256k1_callback* error_cal * require a scratch space */ static int secp256k1_ecmult_multi_simple_var(secp256k1_gej *r, const secp256k1_scalar *inp_g_sc, secp256k1_ecmult_multi_callback cb, void *cbdata, size_t n_points) { size_t point_idx; - secp256k1_scalar szero; secp256k1_gej tmpj; - secp256k1_scalar_set_int(&szero, 0); secp256k1_gej_set_infinity(r); secp256k1_gej_set_infinity(&tmpj); /* r = inp_g_sc*G */ - secp256k1_ecmult(r, &tmpj, &szero, inp_g_sc); + secp256k1_ecmult(r, &tmpj, &secp256k1_scalar_zero, inp_g_sc); for (point_idx = 0; point_idx < n_points; point_idx++) { secp256k1_ge point; secp256k1_gej pointj; @@ -825,9 +823,7 @@ static int secp256k1_ecmult_multi_var(const secp256k1_callback* error_callback, if (inp_g_sc == NULL && n == 0) { return 1; } else if (n == 0) { - secp256k1_scalar szero; - secp256k1_scalar_set_int(&szero, 0); - secp256k1_ecmult(r, r, &szero, inp_g_sc); + secp256k1_ecmult(r, r, &secp256k1_scalar_zero, inp_g_sc); return 1; } if (scratch == NULL) { diff --git a/src/tests.c b/src/tests.c index 43ce73ec96..e9af721122 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2304,26 +2304,23 @@ static void scalar_test(void) { { /* Test multiplicative identity. */ - secp256k1_scalar r1, v1; - secp256k1_scalar_set_int(&v1,1); - secp256k1_scalar_mul(&r1, &s1, &v1); + secp256k1_scalar r1; + secp256k1_scalar_mul(&r1, &s1, &secp256k1_scalar_one); CHECK(secp256k1_scalar_eq(&r1, &s1)); } { /* Test additive identity. */ - secp256k1_scalar r1, v0; - secp256k1_scalar_set_int(&v0,0); - secp256k1_scalar_add(&r1, &s1, &v0); + secp256k1_scalar r1; + secp256k1_scalar_add(&r1, &s1, &secp256k1_scalar_zero); CHECK(secp256k1_scalar_eq(&r1, &s1)); } { /* Test zero product property. */ - secp256k1_scalar r1, v0; - secp256k1_scalar_set_int(&v0,0); - secp256k1_scalar_mul(&r1, &s1, &v0); - CHECK(secp256k1_scalar_eq(&r1, &v0)); + secp256k1_scalar r1; + secp256k1_scalar_mul(&r1, &s1, &secp256k1_scalar_zero); + CHECK(secp256k1_scalar_eq(&r1, &secp256k1_scalar_zero)); } } @@ -2356,11 +2353,9 @@ static void run_scalar_tests(void) { { /* (-1)+1 should be zero. */ - secp256k1_scalar s, o; - secp256k1_scalar_set_int(&s, 1); - CHECK(secp256k1_scalar_is_one(&s)); - secp256k1_scalar_negate(&o, &s); - secp256k1_scalar_add(&o, &o, &s); + secp256k1_scalar o; + secp256k1_scalar_negate(&o, &secp256k1_scalar_one); + secp256k1_scalar_add(&o, &o, &secp256k1_scalar_one); CHECK(secp256k1_scalar_is_zero(&o)); secp256k1_scalar_negate(&o, &o); CHECK(secp256k1_scalar_is_zero(&o)); @@ -2385,7 +2380,6 @@ static void run_scalar_tests(void) { secp256k1_scalar y; secp256k1_scalar z; secp256k1_scalar zz; - secp256k1_scalar one; secp256k1_scalar r1; secp256k1_scalar r2; secp256k1_scalar zzv; @@ -2922,7 +2916,6 @@ static void run_scalar_tests(void) { 0x1e, 0x86, 0x5d, 0x89, 0x63, 0xe6, 0x0a, 0x46, 0x5c, 0x02, 0x97, 0x1b, 0x62, 0x43, 0x86, 0xf5}} }; - secp256k1_scalar_set_int(&one, 1); for (i = 0; i < 33; i++) { secp256k1_scalar_set_b32(&x, chal[i][0], &overflow); CHECK(!overflow); @@ -2945,7 +2938,7 @@ static void run_scalar_tests(void) { CHECK(secp256k1_scalar_eq(&x, &z)); secp256k1_scalar_mul(&zz, &zz, &y); CHECK(!secp256k1_scalar_check_overflow(&zz)); - CHECK(secp256k1_scalar_eq(&one, &zz)); + CHECK(secp256k1_scalar_eq(&secp256k1_scalar_one, &zz)); } } } @@ -4643,7 +4636,6 @@ static int ecmult_multi_false_callback(secp256k1_scalar *sc, secp256k1_ge *pt, s static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi_func ecmult_multi) { int ncount; - secp256k1_scalar szero; secp256k1_scalar sc[32]; secp256k1_ge pt[32]; secp256k1_gej r; @@ -4652,7 +4644,6 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi data.sc = sc; data.pt = pt; - secp256k1_scalar_set_int(&szero, 0); /* No points to multiply */ CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, NULL, ecmult_multi_callback, &data, 0)); @@ -4670,21 +4661,21 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi pt[1] = secp256k1_ge_const_g; /* only G scalar */ - secp256k1_ecmult(&r2, &ptgj, &szero, &sc[0]); + secp256k1_ecmult(&r2, &ptgj, &secp256k1_scalar_zero, &sc[0]); CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &sc[0], ecmult_multi_callback, &data, 0)); CHECK(secp256k1_gej_eq_var(&r, &r2)); /* 1-point */ - secp256k1_ecmult(&r2, &ptgj, &sc[0], &szero); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 1)); + secp256k1_ecmult(&r2, &ptgj, &sc[0], &secp256k1_scalar_zero); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 1)); CHECK(secp256k1_gej_eq_var(&r, &r2)); /* Try to multiply 1 point, but callback returns false */ - CHECK(!ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_false_callback, &data, 1)); + CHECK(!ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_false_callback, &data, 1)); /* 2-point */ secp256k1_ecmult(&r2, &ptgj, &sc[0], &sc[1]); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 2)); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 2)); CHECK(secp256k1_gej_eq_var(&r, &r2)); /* 2-point with G scalar */ @@ -4704,7 +4695,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi random_scalar_order(&sc[i]); secp256k1_ge_set_infinity(&pt[i]); } - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j])); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, sizes[j])); CHECK(secp256k1_gej_is_infinity(&r)); } @@ -4714,7 +4705,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi pt[i] = ptg; secp256k1_scalar_set_int(&sc[i], 0); } - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j])); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, sizes[j])); CHECK(secp256k1_gej_is_infinity(&r)); } @@ -4727,7 +4718,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi pt[2 * i + 1] = ptg; } - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j])); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, sizes[j])); CHECK(secp256k1_gej_is_infinity(&r)); random_scalar_order(&sc[0]); @@ -4740,7 +4731,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_ge_neg(&pt[2*i+1], &pt[2*i]); } - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j])); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, sizes[j])); CHECK(secp256k1_gej_is_infinity(&r)); } @@ -4755,7 +4746,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_scalar_negate(&sc[i], &sc[i]); } - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 32)); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 32)); CHECK(secp256k1_gej_is_infinity(&r)); } @@ -4773,8 +4764,8 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_gej_add_ge_var(&r, &r, &pt[i], NULL); } - secp256k1_ecmult(&r2, &r, &sc[0], &szero); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 20)); + secp256k1_ecmult(&r2, &r, &sc[0], &secp256k1_scalar_zero); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 20)); CHECK(secp256k1_gej_eq_var(&r, &r2)); } @@ -4794,8 +4785,8 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi } secp256k1_gej_set_ge(&p0j, &pt[0]); - secp256k1_ecmult(&r2, &p0j, &rs, &szero); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 20)); + secp256k1_ecmult(&r2, &p0j, &rs, &secp256k1_scalar_zero); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 20)); CHECK(secp256k1_gej_eq_var(&r, &r2)); } @@ -4806,13 +4797,13 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi } secp256k1_scalar_clear(&sc[0]); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 20)); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 20)); secp256k1_scalar_clear(&sc[1]); secp256k1_scalar_clear(&sc[2]); secp256k1_scalar_clear(&sc[3]); secp256k1_scalar_clear(&sc[4]); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 6)); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &szero, ecmult_multi_callback, &data, 5)); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 6)); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 5)); CHECK(secp256k1_gej_is_infinity(&r)); /* Run through s0*(t0*P) + s1*(t1*P) exhaustively for many small values of s0, s1, t0, t1 */ @@ -4836,8 +4827,8 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_scalar_set_int(&t1, (t1i + 1) / 2); secp256k1_scalar_cond_negate(&t1, t1i & 1); - secp256k1_ecmult(&t0p, &ptgj, &t0, &szero); - secp256k1_ecmult(&t1p, &ptgj, &t1, &szero); + secp256k1_ecmult(&t0p, &ptgj, &t0, &secp256k1_scalar_zero); + secp256k1_ecmult(&t1p, &ptgj, &t1, &secp256k1_scalar_zero); for(s0i = 0; s0i < TOP; s0i++) { for(s1i = 0; s1i < TOP; s1i++) { @@ -4856,8 +4847,8 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_scalar_mul(&tmp2, &t1, &sc[1]); secp256k1_scalar_add(&tmp1, &tmp1, &tmp2); - secp256k1_ecmult(&expected, &ptgj, &tmp1, &szero); - CHECK(ecmult_multi(&CTX->error_callback, scratch, &actual, &szero, ecmult_multi_callback, &data, 2)); + secp256k1_ecmult(&expected, &ptgj, &tmp1, &secp256k1_scalar_zero); + CHECK(ecmult_multi(&CTX->error_callback, scratch, &actual, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 2)); CHECK(secp256k1_gej_eq_var(&actual, &expected)); } } @@ -5033,7 +5024,6 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { } static void test_ecmult_multi_batch_single(secp256k1_ecmult_multi_func ecmult_multi) { - secp256k1_scalar szero; secp256k1_scalar sc; secp256k1_ge pt; secp256k1_gej r; @@ -5044,11 +5034,10 @@ static void test_ecmult_multi_batch_single(secp256k1_ecmult_multi_func ecmult_mu random_scalar_order(&sc); data.sc = ≻ data.pt = &pt; - secp256k1_scalar_set_int(&szero, 0); /* Try to multiply 1 point, but scratch space is empty.*/ scratch_empty = secp256k1_scratch_create(&CTX->error_callback, 0); - CHECK(!ecmult_multi(&CTX->error_callback, scratch_empty, &r, &szero, ecmult_multi_callback, &data, 1)); + CHECK(!ecmult_multi(&CTX->error_callback, scratch_empty, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 1)); secp256k1_scratch_destroy(&CTX->error_callback, scratch_empty); } @@ -5156,7 +5145,6 @@ static void test_ecmult_multi_batch_size_helper(void) { static void test_ecmult_multi_batching(void) { static const int n_points = 2*ECMULT_PIPPENGER_THRESHOLD; secp256k1_scalar scG; - secp256k1_scalar szero; secp256k1_scalar *sc = (secp256k1_scalar *)checked_malloc(&CTX->error_callback, sizeof(secp256k1_scalar) * n_points); secp256k1_ge *pt = (secp256k1_ge *)checked_malloc(&CTX->error_callback, sizeof(secp256k1_ge) * n_points); secp256k1_gej r; @@ -5166,11 +5154,10 @@ static void test_ecmult_multi_batching(void) { secp256k1_scratch *scratch; secp256k1_gej_set_infinity(&r2); - secp256k1_scalar_set_int(&szero, 0); /* Get random scalars and group elements and compute result */ random_scalar_order(&scG); - secp256k1_ecmult(&r2, &r2, &szero, &scG); + secp256k1_ecmult(&r2, &r2, &secp256k1_scalar_zero, &scG); for(i = 0; i < n_points; i++) { secp256k1_ge ptg; secp256k1_gej ptgj; From e83801f5db2cb63e6343eff0ecfa40b7cd4a9090 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 30 May 2023 11:17:20 +0100 Subject: [PATCH 141/557] test: Warn if both `VERIFY` and `COVERAGE` are defined --- src/tests.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/tests.c b/src/tests.c index 43ce73ec96..4088c9ff2a 100644 --- a/src/tests.c +++ b/src/tests.c @@ -14,6 +14,9 @@ #pragma message("Ignoring USE_EXTERNAL_CALLBACKS in tests.") #undef USE_EXTERNAL_DEFAULT_CALLBACKS #endif +#if defined(VERIFY) && defined(COVERAGE) + #pragma message("Defining VERIFY for tests being built for coverage analysis support is meaningless.") +#endif #include "secp256k1.c" #include "../include/secp256k1.h" From ade5b367018a624ff7ca1ecbb4a64889d47b0142 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Tue, 30 May 2023 12:20:44 +0200 Subject: [PATCH 142/557] tests: add checks for scalar constants `secp256k1_scalar_{zero,one}` --- src/tests.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/src/tests.c b/src/tests.c index e9af721122..ad916220bc 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2351,6 +2351,20 @@ static void run_scalar_tests(void) { run_scalar_set_b32_seckey_tests(); } + { + /* Check that the scalar constants secp256k1_scalar_zero and + secp256k1_scalar_one contain the expected values. */ + secp256k1_scalar zero, one; + + CHECK(secp256k1_scalar_is_zero(&secp256k1_scalar_zero)); + secp256k1_scalar_set_int(&zero, 0); + CHECK(secp256k1_scalar_eq(&zero, &secp256k1_scalar_zero)); + + CHECK(secp256k1_scalar_is_one(&secp256k1_scalar_one)); + secp256k1_scalar_set_int(&one, 1); + CHECK(secp256k1_scalar_eq(&one, &secp256k1_scalar_one)); + } + { /* (-1)+1 should be zero. */ secp256k1_scalar o; From 605e07e3657e4ff8d11893ee680a0446febf73a1 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 1 Jun 2023 02:50:17 +0200 Subject: [PATCH 143/557] fix input range comment for `secp256k1_fe_add_int` This seems to be a typo that was introduced with commit 4371f98346b0a50c0a77e93948fe5e21d9346d06 (PR #1066). --- src/field.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/field.h b/src/field.h index ee51188ef4..e632f9e3e2 100644 --- a/src/field.h +++ b/src/field.h @@ -223,7 +223,7 @@ static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m); /** Add a small integer to a field element. * * Performs {r += a}. The magnitude of r increases by 1, and normalized is cleared. - * a must be in range [0,0xFFFF]. + * a must be in range [0,0x7FFF]. */ static void secp256k1_fe_add_int(secp256k1_fe *r, int a); From 7dae11586135b59bd59fd9889c56aa9b6509021e Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 2 Jun 2023 16:13:29 +0100 Subject: [PATCH 144/557] Revert "ci: Move wine prefix to /tmp to avoid error D8037 in cl.exe" This reverts commit 27504d5c941df89bc828067248270179c9dcb04b. --- ci/linux-debian.Dockerfile | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 3c1be414f9..a83a4e36db 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -31,9 +31,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ python3 msvc-wine/vsdownload.py --accept-license --dest /opt/msvc Microsoft.VisualStudio.Workload.VCTools && \ msvc-wine/install.sh /opt/msvc -# Moving the wine prefix to /tmp avoids error D8037 when invoking cl.exe. -ENV WINEPREFIX=/tmp/wineprefix -# Initialize the wine prefix. Wait until the wineserver process has +# Initialize the wine environment. Wait until the wineserver process has # exited before closing the session, to avoid corrupting the wine prefix. RUN wine64 wineboot --init && \ while (ps -A | grep wineserver) > /dev/null; do sleep 1; done From c7db4942b34acd2a34e6249112f6c1db6cf5681d Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 3 Jun 2023 09:08:31 +0100 Subject: [PATCH 145/557] ci: Fix error D8037 in `cl.exe` --- ci/linux-debian.Dockerfile | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index a83a4e36db..54eafcab25 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -29,9 +29,10 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ git clone https://github.com/mstorsjo/msvc-wine && \ mkdir /opt/msvc && \ python3 msvc-wine/vsdownload.py --accept-license --dest /opt/msvc Microsoft.VisualStudio.Workload.VCTools && \ - msvc-wine/install.sh /opt/msvc - -# Initialize the wine environment. Wait until the wineserver process has -# exited before closing the session, to avoid corrupting the wine prefix. -RUN wine64 wineboot --init && \ +# Since commit 2146cbfaf037e21de56c7157ec40bb6372860f51, the +# msvc-wine effectively initializes the wine prefix when running +# the install.sh script. + msvc-wine/install.sh /opt/msvc && \ +# Wait until the wineserver process has exited before closing the session, +# to avoid corrupting the wine prefix. while (ps -A | grep wineserver) > /dev/null; do sleep 1; done From db29bf220c73bc71b9d48c262ba2e88c1e741f92 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 23 May 2023 11:28:47 +0200 Subject: [PATCH 146/557] ci: Remove quirk that runs dummy command after wineserver The underlying issue is now worked around in upstream, see https://github.com/mstorsjo/msvc-wine/issues/47 for details. --- ci/cirrus.sh | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/ci/cirrus.sh b/ci/cirrus.sh index b2af03bb5d..5e39e4d518 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -36,8 +36,7 @@ case "$WRAPPER_CMD" in *wine*) # Make sure to shutdown wineserver whenever we exit. trap "wineserver -k || true" EXIT INT HUP - # This is apparently only reliable when we run a dummy command such as "hh.exe" afterwards. - wineserver -p && wine hh.exe + wineserver -p ;; esac From 5b7bf2e9d4ee02cbec1105ad6e890c34a4da1beb Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 4 Jun 2023 15:51:44 +0100 Subject: [PATCH 147/557] Use `__shiftright128` intrinsic in `secp256k1_u128_rshift` on MSVC --- src/int128_struct_impl.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/int128_struct_impl.h b/src/int128_struct_impl.h index 990982da84..962a71d13b 100644 --- a/src/int128_struct_impl.h +++ b/src/int128_struct_impl.h @@ -80,7 +80,12 @@ static SECP256K1_INLINE void secp256k1_u128_rshift(secp256k1_uint128 *r, unsigne r->lo = r->hi >> (n-64); r->hi = 0; } else if (n > 0) { +#if defined(_MSC_VER) && defined(_M_X64) + VERIFY_CHECK(n < 64); + r->lo = __shiftright128(r->lo, r->hi, n); +#else r->lo = ((1U * r->hi) << (64-n)) | r->lo >> n; +#endif r->hi >>= n; } } From 747ada35877d4392c453b7c7249465fb382125ea Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 4 Jun 2023 18:25:39 +0100 Subject: [PATCH 148/557] test: Silent noisy clang warnings about Valgrind code on macOS x86_64 --- src/checkmem.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/checkmem.h b/src/checkmem.h index 571e4cc389..f2169decfc 100644 --- a/src/checkmem.h +++ b/src/checkmem.h @@ -58,7 +58,14 @@ #if !defined SECP256K1_CHECKMEM_ENABLED # if defined VALGRIND # include +# if defined(__clang__) && defined(__APPLE__) +# pragma clang diagnostic push +# pragma clang diagnostic ignored "-Wreserved-identifier" +# endif # include +# if defined(__clang__) && defined(__APPLE__) +# pragma clang diagnostic pop +# endif # define SECP256K1_CHECKMEM_ENABLED 1 # define SECP256K1_CHECKMEM_UNDEFINE(p, len) VALGRIND_MAKE_MEM_UNDEFINED((p), (len)) # define SECP256K1_CHECKMEM_DEFINE(p, len) VALGRIND_MAKE_MEM_DEFINED((p), (len)) From e449af6872445d33a0796224fcb733be6476ad36 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 6 Jun 2023 09:07:36 +0100 Subject: [PATCH 149/557] Drop no longer needed `#include "../include/secp256k1.h"` The removed header includes have not been needed since PR1231. --- src/precompute_ecmult.c | 1 - src/precompute_ecmult_gen.c | 1 - src/precomputed_ecmult.c | 1 - src/precomputed_ecmult.h | 1 + src/precomputed_ecmult_gen.c | 1 - 5 files changed, 1 insertion(+), 4 deletions(-) diff --git a/src/precompute_ecmult.c b/src/precompute_ecmult.c index 10aba5b97d..742142cf58 100644 --- a/src/precompute_ecmult.c +++ b/src/precompute_ecmult.c @@ -68,7 +68,6 @@ int main(void) { fprintf(fp, "/* This file contains an array secp256k1_pre_g with odd multiples of the base point G and\n"); fprintf(fp, " * an array secp256k1_pre_g_128 with odd multiples of 2^128*G for accelerating the computation of a*P + b*G.\n"); fprintf(fp, " */\n"); - fprintf(fp, "#include \"../include/secp256k1.h\"\n"); fprintf(fp, "#include \"group.h\"\n"); fprintf(fp, "#include \"ecmult.h\"\n"); fprintf(fp, "#include \"precomputed_ecmult.h\"\n"); diff --git a/src/precompute_ecmult_gen.c b/src/precompute_ecmult_gen.c index bfe212fdd2..ce648cb9b0 100644 --- a/src/precompute_ecmult_gen.c +++ b/src/precompute_ecmult_gen.c @@ -33,7 +33,6 @@ int main(int argc, char **argv) { fprintf(fp, "/* This file was automatically generated by precompute_ecmult_gen. */\n"); fprintf(fp, "/* See ecmult_gen_impl.h for details about the contents of this file. */\n"); - fprintf(fp, "#include \"../include/secp256k1.h\"\n"); fprintf(fp, "#include \"group.h\"\n"); fprintf(fp, "#include \"ecmult_gen.h\"\n"); fprintf(fp, "#include \"precomputed_ecmult_gen.h\"\n"); diff --git a/src/precomputed_ecmult.c b/src/precomputed_ecmult.c index fbc634ef1b..cbd030ce50 100644 --- a/src/precomputed_ecmult.c +++ b/src/precomputed_ecmult.c @@ -2,7 +2,6 @@ /* This file contains an array secp256k1_pre_g with odd multiples of the base point G and * an array secp256k1_pre_g_128 with odd multiples of 2^128*G for accelerating the computation of a*P + b*G. */ -#include "../include/secp256k1.h" #include "group.h" #include "ecmult.h" #include "precomputed_ecmult.h" diff --git a/src/precomputed_ecmult.h b/src/precomputed_ecmult.h index a4aa83e4ca..17df102967 100644 --- a/src/precomputed_ecmult.h +++ b/src/precomputed_ecmult.h @@ -11,6 +11,7 @@ extern "C" { #endif +#include "ecmult.h" #include "group.h" #if defined(EXHAUSTIVE_TEST_ORDER) # if EXHAUSTIVE_TEST_ORDER == 7 diff --git a/src/precomputed_ecmult_gen.c b/src/precomputed_ecmult_gen.c index e9d62a1c1b..75ec59c27a 100644 --- a/src/precomputed_ecmult_gen.c +++ b/src/precomputed_ecmult_gen.c @@ -1,6 +1,5 @@ /* This file was automatically generated by precompute_ecmult_gen. */ /* See ecmult_gen_impl.h for details about the contents of this file. */ -#include "../include/secp256k1.h" #include "group.h" #include "ecmult_gen.h" #include "precomputed_ecmult_gen.h" From 52b84238de27889f2517c845757bf5c2c65ed1d6 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sun, 4 Jun 2023 02:50:21 +0200 Subject: [PATCH 150/557] scalar: use `secp256k1_{read,write}_be32` helpers (8x32 impl.) --- src/scalar_8x32_impl.h | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index da9936dbd9..80ef3ef248 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -169,14 +169,14 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b32, int *overflow) { int over; - r->d[0] = (uint32_t)b32[31] | (uint32_t)b32[30] << 8 | (uint32_t)b32[29] << 16 | (uint32_t)b32[28] << 24; - r->d[1] = (uint32_t)b32[27] | (uint32_t)b32[26] << 8 | (uint32_t)b32[25] << 16 | (uint32_t)b32[24] << 24; - r->d[2] = (uint32_t)b32[23] | (uint32_t)b32[22] << 8 | (uint32_t)b32[21] << 16 | (uint32_t)b32[20] << 24; - r->d[3] = (uint32_t)b32[19] | (uint32_t)b32[18] << 8 | (uint32_t)b32[17] << 16 | (uint32_t)b32[16] << 24; - r->d[4] = (uint32_t)b32[15] | (uint32_t)b32[14] << 8 | (uint32_t)b32[13] << 16 | (uint32_t)b32[12] << 24; - r->d[5] = (uint32_t)b32[11] | (uint32_t)b32[10] << 8 | (uint32_t)b32[9] << 16 | (uint32_t)b32[8] << 24; - r->d[6] = (uint32_t)b32[7] | (uint32_t)b32[6] << 8 | (uint32_t)b32[5] << 16 | (uint32_t)b32[4] << 24; - r->d[7] = (uint32_t)b32[3] | (uint32_t)b32[2] << 8 | (uint32_t)b32[1] << 16 | (uint32_t)b32[0] << 24; + r->d[0] = secp256k1_read_be32(&b32[28]); + r->d[1] = secp256k1_read_be32(&b32[24]); + r->d[2] = secp256k1_read_be32(&b32[20]); + r->d[3] = secp256k1_read_be32(&b32[16]); + r->d[4] = secp256k1_read_be32(&b32[12]); + r->d[5] = secp256k1_read_be32(&b32[8]); + r->d[6] = secp256k1_read_be32(&b32[4]); + r->d[7] = secp256k1_read_be32(&b32[0]); over = secp256k1_scalar_reduce(r, secp256k1_scalar_check_overflow(r)); if (overflow) { *overflow = over; @@ -184,14 +184,14 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { - bin[0] = a->d[7] >> 24; bin[1] = a->d[7] >> 16; bin[2] = a->d[7] >> 8; bin[3] = a->d[7]; - bin[4] = a->d[6] >> 24; bin[5] = a->d[6] >> 16; bin[6] = a->d[6] >> 8; bin[7] = a->d[6]; - bin[8] = a->d[5] >> 24; bin[9] = a->d[5] >> 16; bin[10] = a->d[5] >> 8; bin[11] = a->d[5]; - bin[12] = a->d[4] >> 24; bin[13] = a->d[4] >> 16; bin[14] = a->d[4] >> 8; bin[15] = a->d[4]; - bin[16] = a->d[3] >> 24; bin[17] = a->d[3] >> 16; bin[18] = a->d[3] >> 8; bin[19] = a->d[3]; - bin[20] = a->d[2] >> 24; bin[21] = a->d[2] >> 16; bin[22] = a->d[2] >> 8; bin[23] = a->d[2]; - bin[24] = a->d[1] >> 24; bin[25] = a->d[1] >> 16; bin[26] = a->d[1] >> 8; bin[27] = a->d[1]; - bin[28] = a->d[0] >> 24; bin[29] = a->d[0] >> 16; bin[30] = a->d[0] >> 8; bin[31] = a->d[0]; + secp256k1_write_be32(&bin[0], a->d[7]); + secp256k1_write_be32(&bin[4], a->d[6]); + secp256k1_write_be32(&bin[8], a->d[5]); + secp256k1_write_be32(&bin[12], a->d[4]); + secp256k1_write_be32(&bin[16], a->d[3]); + secp256k1_write_be32(&bin[20], a->d[2]); + secp256k1_write_be32(&bin[24], a->d[1]); + secp256k1_write_be32(&bin[28], a->d[0]); } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { From 887183e7de4d1941792d78471a3adb004fd4ec8e Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sat, 10 Jun 2023 19:50:54 +0200 Subject: [PATCH 151/557] scalar: use `secp256k1_{read,write}_be32` helpers (4x64 impl.) An alternative would be to introduce special helpers for reading/writing uint64_t in big endian `secp256k1_{read,write}_be64`. --- src/scalar_4x64_impl.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 0d342fd847..7b56553397 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -133,10 +133,10 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b32, int *overflow) { int over; - r->d[0] = (uint64_t)b32[31] | (uint64_t)b32[30] << 8 | (uint64_t)b32[29] << 16 | (uint64_t)b32[28] << 24 | (uint64_t)b32[27] << 32 | (uint64_t)b32[26] << 40 | (uint64_t)b32[25] << 48 | (uint64_t)b32[24] << 56; - r->d[1] = (uint64_t)b32[23] | (uint64_t)b32[22] << 8 | (uint64_t)b32[21] << 16 | (uint64_t)b32[20] << 24 | (uint64_t)b32[19] << 32 | (uint64_t)b32[18] << 40 | (uint64_t)b32[17] << 48 | (uint64_t)b32[16] << 56; - r->d[2] = (uint64_t)b32[15] | (uint64_t)b32[14] << 8 | (uint64_t)b32[13] << 16 | (uint64_t)b32[12] << 24 | (uint64_t)b32[11] << 32 | (uint64_t)b32[10] << 40 | (uint64_t)b32[9] << 48 | (uint64_t)b32[8] << 56; - r->d[3] = (uint64_t)b32[7] | (uint64_t)b32[6] << 8 | (uint64_t)b32[5] << 16 | (uint64_t)b32[4] << 24 | (uint64_t)b32[3] << 32 | (uint64_t)b32[2] << 40 | (uint64_t)b32[1] << 48 | (uint64_t)b32[0] << 56; + r->d[0] = ((uint64_t)secp256k1_read_be32(&b32[24]) << 32) | (uint64_t)secp256k1_read_be32(&b32[28]); + r->d[1] = ((uint64_t)secp256k1_read_be32(&b32[16]) << 32) | (uint64_t)secp256k1_read_be32(&b32[20]); + r->d[2] = ((uint64_t)secp256k1_read_be32(&b32[8]) << 32) | (uint64_t)secp256k1_read_be32(&b32[12]); + r->d[3] = ((uint64_t)secp256k1_read_be32(&b32[0]) << 32) | (uint64_t)secp256k1_read_be32(&b32[4]); over = secp256k1_scalar_reduce(r, secp256k1_scalar_check_overflow(r)); if (overflow) { *overflow = over; @@ -144,10 +144,10 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { - bin[0] = a->d[3] >> 56; bin[1] = a->d[3] >> 48; bin[2] = a->d[3] >> 40; bin[3] = a->d[3] >> 32; bin[4] = a->d[3] >> 24; bin[5] = a->d[3] >> 16; bin[6] = a->d[3] >> 8; bin[7] = a->d[3]; - bin[8] = a->d[2] >> 56; bin[9] = a->d[2] >> 48; bin[10] = a->d[2] >> 40; bin[11] = a->d[2] >> 32; bin[12] = a->d[2] >> 24; bin[13] = a->d[2] >> 16; bin[14] = a->d[2] >> 8; bin[15] = a->d[2]; - bin[16] = a->d[1] >> 56; bin[17] = a->d[1] >> 48; bin[18] = a->d[1] >> 40; bin[19] = a->d[1] >> 32; bin[20] = a->d[1] >> 24; bin[21] = a->d[1] >> 16; bin[22] = a->d[1] >> 8; bin[23] = a->d[1]; - bin[24] = a->d[0] >> 56; bin[25] = a->d[0] >> 48; bin[26] = a->d[0] >> 40; bin[27] = a->d[0] >> 32; bin[28] = a->d[0] >> 24; bin[29] = a->d[0] >> 16; bin[30] = a->d[0] >> 8; bin[31] = a->d[0]; + secp256k1_write_be32(&bin[0], a->d[3] >> 32); secp256k1_write_be32(&bin[4], a->d[3]); + secp256k1_write_be32(&bin[8], a->d[2] >> 32); secp256k1_write_be32(&bin[12], a->d[2]); + secp256k1_write_be32(&bin[16], a->d[1] >> 32); secp256k1_write_be32(&bin[20], a->d[1]); + secp256k1_write_be32(&bin[24], a->d[0] >> 32); secp256k1_write_be32(&bin[28], a->d[0]); } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { From f3644287b10cd7339fbb0e35e953235351f5efb6 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sun, 11 Jun 2023 18:06:04 +0200 Subject: [PATCH 152/557] docs: correct `pubkey` param descriptions for `secp256k1_keypair_{xonly_,}pub` From an API perspective, the functions `secp256k1_keypair_pub` and `secp256k1_keypair_xonly_pub` always succeed (i.e. return the value 1), so the other cases in the `pubkey` parameter descriptions never happen and can hence be removed. Note that the "1 always" return value description was previously done in commit b8f8b99f0fb3a5cd4c6fb1c9c8dfed881839e19e (PR #1089), which also explains why invalid inputs for the affected functions are in practice only possible in violation of the type system. --- include/secp256k1_extrakeys.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index 52bba240b4..673fca01f9 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -185,9 +185,8 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_sec( /** Get the public key from a keypair. * * Returns: 1 always. - * Args: ctx: pointer to a context object. - * Out: pubkey: pointer to a pubkey object. If 1 is returned, it is set to - * the keypair public key. If not, it's set to an invalid value. + * Args: ctx: pointer to a context object. + * Out: pubkey: pointer to a pubkey object, set to the keypair public key. * In: keypair: pointer to a keypair. */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_pub( @@ -203,9 +202,8 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_pub( * * Returns: 1 always. * Args: ctx: pointer to a context object. - * Out: pubkey: pointer to an xonly_pubkey object. If 1 is returned, it is set - * to the keypair public key after converting it to an - * xonly_pubkey. If not, it's set to an invalid value. + * Out: pubkey: pointer to an xonly_pubkey object, set to the keypair + * public key after converting it to an xonly_pubkey. * pk_parity: Ignored if NULL. Otherwise, pointer to an integer that will be set to the * pk_parity argument of secp256k1_xonly_pubkey_from_pubkey. * In: keypair: pointer to a keypair. From efa76c4bf7cab1c22aa476cd2730e891450ad4a0 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 12 Jun 2023 23:36:57 +0200 Subject: [PATCH 153/557] group: remove unneeded normalize_weak in `secp256k1_ge_is_valid_var` After calculating the right-hand side of the elliptic curve equation (x^3 + 7), the field element `x3` has a magnitude of 2 (1 as result of `secp256k1_fe_mul`, then increased by 1 due to `secp256k1_fe_add_int`). This is fine for `secp256k1_fe_equal_var`, as the second parameter only requires the magnitude to not exceed 31, and the normalize_weak call can hence be dropped. --- src/group_impl.h | 1 - 1 file changed, 1 deletion(-) diff --git a/src/group_impl.h b/src/group_impl.h index 44d98434ca..83a45c2d33 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -349,7 +349,6 @@ static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { secp256k1_fe_sqr(&y2, &a->y); secp256k1_fe_sqr(&x3, &a->x); secp256k1_fe_mul(&x3, &x3, &a->x); secp256k1_fe_add_int(&x3, SECP256K1_B); - secp256k1_fe_normalize_weak(&x3); return secp256k1_fe_equal_var(&y2, &x3); } From be8ff3a02aeff87c60d49883a1b2afa8b2999bbe Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 13 Jun 2023 13:34:49 +0200 Subject: [PATCH 154/557] field: Static-assert that int args affecting magnitude are constant See #1001. --- src/field.h | 24 ++++++++++++++++++------ src/field_10x26_impl.h | 4 ++-- src/field_5x52_impl.h | 4 ++-- src/field_impl.h | 12 ++++++------ src/tests.c | 4 ++-- src/util.h | 13 +++++++++++++ 6 files changed, 43 insertions(+), 18 deletions(-) diff --git a/src/field.h b/src/field.h index e632f9e3e2..eceee9c83d 100644 --- a/src/field.h +++ b/src/field.h @@ -88,8 +88,8 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_set_b32_mod secp256k1_fe_impl_set_b32_mod # define secp256k1_fe_set_b32_limit secp256k1_fe_impl_set_b32_limit # define secp256k1_fe_get_b32 secp256k1_fe_impl_get_b32 -# define secp256k1_fe_negate secp256k1_fe_impl_negate -# define secp256k1_fe_mul_int secp256k1_fe_impl_mul_int +# define secp256k1_fe_negate_unchecked secp256k1_fe_impl_negate_unchecked +# define secp256k1_fe_mul_int_unchecked secp256k1_fe_impl_mul_int_unchecked # define secp256k1_fe_add secp256k1_fe_impl_add # define secp256k1_fe_mul secp256k1_fe_impl_mul # define secp256k1_fe_sqr secp256k1_fe_impl_sqr @@ -214,11 +214,17 @@ static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a); /** Negate a field element. * * On input, r does not need to be initialized. a must be a valid field element with - * magnitude not exceeding m. m must be an integer in [0,31]. + * magnitude not exceeding m. m must be an integer constant expression in [0,31]. * Performs {r = -a}. * On output, r will not be normalized, and will have magnitude m+1. */ -static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m); +#define secp256k1_fe_negate(r, a, m) ASSERT_INT_CONST_AND_DO(m, secp256k1_fe_negate_unchecked(r, a, m)) + +/** Like secp256k1_fe_negate_unchecked but m is not checked to be an integer constant expression. + * + * Should not be called directly outside of tests. + */ +static void secp256k1_fe_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m); /** Add a small integer to a field element. * @@ -229,12 +235,18 @@ static void secp256k1_fe_add_int(secp256k1_fe *r, int a); /** Multiply a field element with a small integer. * - * On input, r must be a valid field element. a must be an integer in [0,32]. + * On input, r must be a valid field element. a must be an integer constant expression in [0,32]. * The magnitude of r times a must not exceed 32. * Performs {r *= a}. * On output, r's magnitude is multiplied by a, and r will not be normalized. */ -static void secp256k1_fe_mul_int(secp256k1_fe *r, int a); +#define secp256k1_fe_mul_int(r, a) ASSERT_INT_CONST_AND_DO(a, secp256k1_fe_mul_int_unchecked(r, a)) + +/** Like secp256k1_fe_mul_int but a is not checked to be an integer constant expression. + * + * Should not be called directly outside of tests. + */ +static void secp256k1_fe_mul_int_unchecked(secp256k1_fe *r, int a); /** Increment a field element by another. * diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index c1b32b80a8..8445db1639 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -344,7 +344,7 @@ static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a) { r[31] = a->n[0] & 0xff; } -SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { +SECP256K1_INLINE static void secp256k1_fe_impl_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m) { /* For all legal values of m (0..31), the following properties hold: */ VERIFY_CHECK(0x3FFFC2FUL * 2 * (m + 1) >= 0x3FFFFFFUL * 2 * m); VERIFY_CHECK(0x3FFFFBFUL * 2 * (m + 1) >= 0x3FFFFFFUL * 2 * m); @@ -365,7 +365,7 @@ SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const sec r->n[9] = 0x03FFFFFUL * 2 * (m + 1) - a->n[9]; } -SECP256K1_INLINE static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a) { +SECP256K1_INLINE static void secp256k1_fe_impl_mul_int_unchecked(secp256k1_fe *r, int a) { r->n[0] *= a; r->n[1] *= a; r->n[2] *= a; diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 0a4cc1a630..ecb70502c2 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -314,7 +314,7 @@ static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a) { r[31] = a->n[0] & 0xFF; } -SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { +SECP256K1_INLINE static void secp256k1_fe_impl_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m) { /* For all legal values of m (0..31), the following properties hold: */ VERIFY_CHECK(0xFFFFEFFFFFC2FULL * 2 * (m + 1) >= 0xFFFFFFFFFFFFFULL * 2 * m); VERIFY_CHECK(0xFFFFFFFFFFFFFULL * 2 * (m + 1) >= 0xFFFFFFFFFFFFFULL * 2 * m); @@ -329,7 +329,7 @@ SECP256K1_INLINE static void secp256k1_fe_impl_negate(secp256k1_fe *r, const sec r->n[4] = 0x0FFFFFFFFFFFFULL * 2 * (m + 1) - a->n[4]; } -SECP256K1_INLINE static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a) { +SECP256K1_INLINE static void secp256k1_fe_impl_mul_int_unchecked(secp256k1_fe *r, int a) { r->n[0] *= a; r->n[1] *= a; r->n[2] *= a; diff --git a/src/field_impl.h b/src/field_impl.h index f9769a4a39..2a0fba20a2 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -289,23 +289,23 @@ SECP256K1_INLINE static void secp256k1_fe_get_b32(unsigned char *r, const secp25 secp256k1_fe_impl_get_b32(r, a); } -static void secp256k1_fe_impl_negate(secp256k1_fe *r, const secp256k1_fe *a, int m); -SECP256K1_INLINE static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m) { +static void secp256k1_fe_impl_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m); +SECP256K1_INLINE static void secp256k1_fe_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m) { secp256k1_fe_verify(a); VERIFY_CHECK(m >= 0 && m <= 31); VERIFY_CHECK(a->magnitude <= m); - secp256k1_fe_impl_negate(r, a, m); + secp256k1_fe_impl_negate_unchecked(r, a, m); r->magnitude = m + 1; r->normalized = 0; secp256k1_fe_verify(r); } -static void secp256k1_fe_impl_mul_int(secp256k1_fe *r, int a); -SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe *r, int a) { +static void secp256k1_fe_impl_mul_int_unchecked(secp256k1_fe *r, int a); +SECP256K1_INLINE static void secp256k1_fe_mul_int_unchecked(secp256k1_fe *r, int a) { secp256k1_fe_verify(r); VERIFY_CHECK(a >= 0 && a <= 32); VERIFY_CHECK(a*r->magnitude <= 32); - secp256k1_fe_impl_mul_int(r, a); + secp256k1_fe_impl_mul_int_unchecked(r, a); r->magnitude *= a; r->normalized = 0; secp256k1_fe_verify(r); diff --git a/src/tests.c b/src/tests.c index e67891a892..838729e760 100644 --- a/src/tests.c +++ b/src/tests.c @@ -108,7 +108,7 @@ static void random_field_element_magnitude(secp256k1_fe *fe) { } secp256k1_fe_clear(&zero); secp256k1_fe_negate(&zero, &zero, 0); - secp256k1_fe_mul_int(&zero, n - 1); + secp256k1_fe_mul_int_unchecked(&zero, n - 1); secp256k1_fe_add(fe, &zero); #ifdef VERIFY CHECK(fe->magnitude == n); @@ -3223,7 +3223,7 @@ static void run_field_misc(void) { CHECK(q.normalized && q.magnitude == 1); #endif for (j = 0; j < 6; j++) { - secp256k1_fe_negate(&z, &z, j+1); + secp256k1_fe_negate_unchecked(&z, &z, j+1); secp256k1_fe_normalize_var(&q); secp256k1_fe_cmov(&q, &z, (j&1)); #ifdef VERIFY diff --git a/src/util.h b/src/util.h index 0e3faf0234..5e6c65d320 100644 --- a/src/util.h +++ b/src/util.h @@ -51,6 +51,19 @@ static void print_buf_plain(const unsigned char *buf, size_t len) { # define SECP256K1_INLINE inline # endif +/** Assert statically that expr is an integer constant expression, and run stmt. + * + * Useful for example to enforce that magnitude arguments are constant. + */ +#define ASSERT_INT_CONST_AND_DO(expr, stmt) do { \ + switch(42) { \ + case /* ERROR: integer argument is not constant */ expr: \ + break; \ + default: ; \ + } \ + stmt; \ +} while(0) + typedef struct { void (*fn)(const char *text, void* data); const void* data; From 740528caad8c37e335cba2bcd02790d94c22e767 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sat, 17 Jun 2023 01:04:37 +0200 Subject: [PATCH 155/557] scalar: use newly introduced `secp256k1_{read,write}_be64` helpers (4x64 impl.) --- src/scalar_4x64_impl.h | 16 ++++++++-------- src/util.h | 24 ++++++++++++++++++++++++ 2 files changed, 32 insertions(+), 8 deletions(-) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 7b56553397..1d14740577 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -133,10 +133,10 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b32, int *overflow) { int over; - r->d[0] = ((uint64_t)secp256k1_read_be32(&b32[24]) << 32) | (uint64_t)secp256k1_read_be32(&b32[28]); - r->d[1] = ((uint64_t)secp256k1_read_be32(&b32[16]) << 32) | (uint64_t)secp256k1_read_be32(&b32[20]); - r->d[2] = ((uint64_t)secp256k1_read_be32(&b32[8]) << 32) | (uint64_t)secp256k1_read_be32(&b32[12]); - r->d[3] = ((uint64_t)secp256k1_read_be32(&b32[0]) << 32) | (uint64_t)secp256k1_read_be32(&b32[4]); + r->d[0] = secp256k1_read_be64(&b32[24]); + r->d[1] = secp256k1_read_be64(&b32[16]); + r->d[2] = secp256k1_read_be64(&b32[8]); + r->d[3] = secp256k1_read_be64(&b32[0]); over = secp256k1_scalar_reduce(r, secp256k1_scalar_check_overflow(r)); if (overflow) { *overflow = over; @@ -144,10 +144,10 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { - secp256k1_write_be32(&bin[0], a->d[3] >> 32); secp256k1_write_be32(&bin[4], a->d[3]); - secp256k1_write_be32(&bin[8], a->d[2] >> 32); secp256k1_write_be32(&bin[12], a->d[2]); - secp256k1_write_be32(&bin[16], a->d[1] >> 32); secp256k1_write_be32(&bin[20], a->d[1]); - secp256k1_write_be32(&bin[24], a->d[0] >> 32); secp256k1_write_be32(&bin[28], a->d[0]); + secp256k1_write_be64(&bin[0], a->d[3]); + secp256k1_write_be64(&bin[8], a->d[2]); + secp256k1_write_be64(&bin[16], a->d[1]); + secp256k1_write_be64(&bin[24], a->d[0]); } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { diff --git a/src/util.h b/src/util.h index 0e3faf0234..e2ee8a8f19 100644 --- a/src/util.h +++ b/src/util.h @@ -353,4 +353,28 @@ SECP256K1_INLINE static void secp256k1_write_be32(unsigned char* p, uint32_t x) p[0] = x >> 24; } +/* Read a uint64_t in big endian */ +SECP256K1_INLINE static uint64_t secp256k1_read_be64(const unsigned char* p) { + return (uint64_t)p[0] << 56 | + (uint64_t)p[1] << 48 | + (uint64_t)p[2] << 40 | + (uint64_t)p[3] << 32 | + (uint64_t)p[4] << 24 | + (uint64_t)p[5] << 16 | + (uint64_t)p[6] << 8 | + (uint64_t)p[7]; +} + +/* Write a uint64_t in big endian */ +SECP256K1_INLINE static void secp256k1_write_be64(unsigned char* p, uint64_t x) { + p[7] = x; + p[6] = x >> 8; + p[5] = x >> 16; + p[4] = x >> 24; + p[3] = x >> 32; + p[2] = x >> 40; + p[1] = x >> 48; + p[0] = x >> 56; +} + #endif /* SECP256K1_UTIL_H */ From 7067ee54b4206c26b382980f3c20b5fa0262a23a Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sat, 17 Jun 2023 01:48:25 +0200 Subject: [PATCH 156/557] tests: add tests for `secp256k1_{read,write}_be64` This can be reviewed with `--ignore-all-space` (or `-w`), to ignore already existing code that was only indented. --- src/tests.c | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-) diff --git a/src/tests.c b/src/tests.c index e67891a892..9be2b7a33e 100644 --- a/src/tests.c +++ b/src/tests.c @@ -7516,16 +7516,31 @@ static void run_secp256k1_memczero_test(void) { } static void run_secp256k1_byteorder_tests(void) { - const uint32_t x = 0xFF03AB45; - const unsigned char x_be[4] = {0xFF, 0x03, 0xAB, 0x45}; - unsigned char buf[4]; - uint32_t x_; + { + const uint32_t x = 0xFF03AB45; + const unsigned char x_be[4] = {0xFF, 0x03, 0xAB, 0x45}; + unsigned char buf[4]; + uint32_t x_; + + secp256k1_write_be32(buf, x); + CHECK(secp256k1_memcmp_var(buf, x_be, sizeof(buf)) == 0); - secp256k1_write_be32(buf, x); - CHECK(secp256k1_memcmp_var(buf, x_be, sizeof(buf)) == 0); + x_ = secp256k1_read_be32(buf); + CHECK(x == x_); + } - x_ = secp256k1_read_be32(buf); - CHECK(x == x_); + { + const uint64_t x = 0xCAFE0123BEEF4567; + const unsigned char x_be[8] = {0xCA, 0xFE, 0x01, 0x23, 0xBE, 0xEF, 0x45, 0x67}; + unsigned char buf[8]; + uint64_t x_; + + secp256k1_write_be64(buf, x); + CHECK(secp256k1_memcmp_var(buf, x_be, sizeof(buf)) == 0); + + x_ = secp256k1_read_be64(buf); + CHECK(x == x_); + } } static void int_cmov_test(void) { From f1652528be5a287a3c33a4fae1e5763693333c2b Mon Sep 17 00:00:00 2001 From: stratospher <44024636+stratospher@users.noreply.github.com> Date: Thu, 15 Jun 2023 23:36:19 +0530 Subject: [PATCH 157/557] Normalize ge produced from secp256k1_pubkey_load The output ge is normalized when sizeof(secp256k1_ge_storage) = 64 but not when it's not 64. ARG_CHECK at the end of the function assumes normalization. So normalize ge in the other code path too. --- src/secp256k1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/secp256k1.c b/src/secp256k1.c index bdbd97cc40..3851f9625a 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -247,8 +247,8 @@ static int secp256k1_pubkey_load(const secp256k1_context* ctx, secp256k1_ge* ge, } else { /* Otherwise, fall back to 32-byte big endian for X and Y. */ secp256k1_fe x, y; - secp256k1_fe_set_b32_mod(&x, pubkey->data); - secp256k1_fe_set_b32_mod(&y, pubkey->data + 32); + ARG_CHECK(secp256k1_fe_set_b32_limit(&x, pubkey->data)); + ARG_CHECK(secp256k1_fe_set_b32_limit(&y, pubkey->data + 32)); secp256k1_ge_set_xy(ge, &x, &y); } ARG_CHECK(!secp256k1_fe_is_zero(&ge->x)); From a597a5a9cedc27eb6a1190b1959cb9fe0d26a7dc Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 7 Jul 2022 14:45:21 -0400 Subject: [PATCH 158/557] Add benchmark for key generation --- src/bench.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff --git a/src/bench.c b/src/bench.c index 9992056871..342943527d 100644 --- a/src/bench.c +++ b/src/bench.c @@ -38,6 +38,8 @@ static void help(int default_iters) { printf(" ecdsa : all ECDSA algorithms--sign, verify, recovery (if enabled)\n"); printf(" ecdsa_sign : ECDSA siging algorithm\n"); printf(" ecdsa_verify : ECDSA verification algorithm\n"); + printf(" ec : all EC public key algorithms (keygen)\n"); + printf(" ec_keygen : EC public key generation\n"); #ifdef ENABLE_MODULE_RECOVERY printf(" ecdsa_recover : ECDSA public key recovery algorithm\n"); @@ -115,6 +117,30 @@ static void bench_sign_run(void* arg, int iters) { } } +static void bench_keygen_setup(void* arg) { + int i; + bench_data *data = (bench_data*)arg; + + for (i = 0; i < 32; i++) { + data->key[i] = i + 65; + } +} + +static void bench_keygen_run(void *arg, int iters) { + int i; + bench_data *data = (bench_data*)arg; + + for (i = 0; i < iters; i++) { + unsigned char pub33[33]; + size_t len = 33; + secp256k1_pubkey pubkey; + CHECK(secp256k1_ec_pubkey_create(data->ctx, &pubkey, data->key)); + CHECK(secp256k1_ec_pubkey_serialize(data->ctx, pub33, &len, &pubkey, SECP256K1_EC_COMPRESSED)); + memcpy(data->key, pub33 + 1, 32); + } +} + + #ifdef ENABLE_MODULE_ECDH # include "modules/ecdh/bench_impl.h" #endif @@ -139,7 +165,8 @@ int main(int argc, char** argv) { /* Check for invalid user arguments */ char* valid_args[] = {"ecdsa", "verify", "ecdsa_verify", "sign", "ecdsa_sign", "ecdh", "recover", - "ecdsa_recover", "schnorrsig", "schnorrsig_verify", "schnorrsig_sign"}; + "ecdsa_recover", "schnorrsig", "schnorrsig_verify", "schnorrsig_sign", "ec", + "keygen", "ec_keygen"}; size_t valid_args_size = sizeof(valid_args)/sizeof(valid_args[0]); int invalid_args = have_invalid_args(argc, argv, valid_args, valid_args_size); @@ -201,6 +228,7 @@ int main(int argc, char** argv) { if (d || have_flag(argc, argv, "ecdsa") || have_flag(argc, argv, "verify") || have_flag(argc, argv, "ecdsa_verify")) run_benchmark("ecdsa_verify", bench_verify, NULL, NULL, &data, 10, iters); if (d || have_flag(argc, argv, "ecdsa") || have_flag(argc, argv, "sign") || have_flag(argc, argv, "ecdsa_sign")) run_benchmark("ecdsa_sign", bench_sign_run, bench_sign_setup, NULL, &data, 10, iters); + if (d || have_flag(argc, argv, "ec") || have_flag(argc, argv, "keygen") || have_flag(argc, argv, "ec_keygen")) run_benchmark("ec_keygen", bench_keygen_run, bench_keygen_setup, NULL, &data, 10, iters); secp256k1_context_destroy(data.ctx); From 79e5b2a8b80f507e2c9936ff1c4e2fb39bc66a4e Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 4 Nov 2022 16:17:56 -0400 Subject: [PATCH 159/557] Add functions to test if X coordinate is valid --- src/group.h | 6 ++++++ src/group_impl.h | 28 ++++++++++++++++++++++++++++ src/tests.c | 30 +++++++++++++++++++++++++++++- 3 files changed, 63 insertions(+), 1 deletion(-) diff --git a/src/group.h b/src/group.h index 77ad7435f8..877c3eaeed 100644 --- a/src/group.h +++ b/src/group.h @@ -51,6 +51,12 @@ static void secp256k1_ge_set_xy(secp256k1_ge *r, const secp256k1_fe *x, const se * for Y. Return value indicates whether the result is valid. */ static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd); +/** Determine whether x is a valid X coordinate on the curve. */ +static int secp256k1_ge_x_on_curve_var(const secp256k1_fe *x); + +/** Determine whether fraction xn/xd is a valid X coordinate on the curve (xd != 0). */ +static int secp256k1_ge_x_frac_on_curve_var(const secp256k1_fe *xn, const secp256k1_fe *xd); + /** Check whether a group element is the point at infinity. */ static int secp256k1_ge_is_infinity(const secp256k1_ge *a); diff --git a/src/group_impl.h b/src/group_impl.h index 44d98434ca..dcd171f574 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -823,4 +823,32 @@ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { #endif } +static int secp256k1_ge_x_on_curve_var(const secp256k1_fe *x) { + secp256k1_fe c; + secp256k1_fe_sqr(&c, x); + secp256k1_fe_mul(&c, &c, x); + secp256k1_fe_add_int(&c, SECP256K1_B); + return secp256k1_fe_is_square_var(&c); +} + +static int secp256k1_ge_x_frac_on_curve_var(const secp256k1_fe *xn, const secp256k1_fe *xd) { + /* We want to determine whether (xn/xd) is on the curve. + * + * (xn/xd)^3 + 7 is square <=> xd*xn^3 + 7*xd^4 is square (multiplying by xd^4, a square). + */ + secp256k1_fe r, t; +#ifdef VERIFY + VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(xd)); +#endif + secp256k1_fe_mul(&r, xd, xn); /* r = xd*xn */ + secp256k1_fe_sqr(&t, xn); /* t = xn^2 */ + secp256k1_fe_mul(&r, &r, &t); /* r = xd*xn^3 */ + secp256k1_fe_sqr(&t, xd); /* t = xd^2 */ + secp256k1_fe_sqr(&t, &t); /* t = xd^4 */ + VERIFY_CHECK(SECP256K1_B <= 31); + secp256k1_fe_mul_int(&t, SECP256K1_B); /* t = 7*xd^4 */ + secp256k1_fe_add(&r, &t); /* r = xd*xn^3 + 7*xd^4 */ + return secp256k1_fe_is_square_var(&r); +} + #endif /* SECP256K1_GROUP_IMPL_H */ diff --git a/src/tests.c b/src/tests.c index 9be2b7a33e..4b93bd29aa 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3775,7 +3775,7 @@ static void test_ge(void) { */ secp256k1_ge *ge = (secp256k1_ge *)checked_malloc(&CTX->error_callback, sizeof(secp256k1_ge) * (1 + 4 * runs)); secp256k1_gej *gej = (secp256k1_gej *)checked_malloc(&CTX->error_callback, sizeof(secp256k1_gej) * (1 + 4 * runs)); - secp256k1_fe zf; + secp256k1_fe zf, r; secp256k1_fe zfi2, zfi3; secp256k1_gej_set_infinity(&gej[0]); @@ -3817,6 +3817,11 @@ static void test_ge(void) { secp256k1_fe_sqr(&zfi2, &zfi3); secp256k1_fe_mul(&zfi3, &zfi3, &zfi2); + /* Generate random r */ + do { + random_field_element_test(&r); + } while(secp256k1_fe_is_zero(&r)); + for (i1 = 0; i1 < 1 + 4 * runs; i1++) { int i2; for (i2 = 0; i2 < 1 + 4 * runs; i2++) { @@ -3929,6 +3934,29 @@ static void test_ge(void) { free(ge_set_all); } + /* Test that all elements have X coordinates on the curve. */ + for (i = 1; i < 4 * runs + 1; i++) { + secp256k1_fe n; + CHECK(secp256k1_ge_x_on_curve_var(&ge[i].x)); + /* And the same holds after random rescaling. */ + secp256k1_fe_mul(&n, &zf, &ge[i].x); + CHECK(secp256k1_ge_x_frac_on_curve_var(&n, &zf)); + } + + /* Test correspondence of secp256k1_ge_x{,_frac}_on_curve_var with ge_set_xo. */ + { + secp256k1_fe n; + secp256k1_ge q; + int ret_on_curve, ret_frac_on_curve, ret_set_xo; + secp256k1_fe_mul(&n, &zf, &r); + ret_on_curve = secp256k1_ge_x_on_curve_var(&r); + ret_frac_on_curve = secp256k1_ge_x_frac_on_curve_var(&n, &zf); + ret_set_xo = secp256k1_ge_set_xo_var(&q, &r, 0); + CHECK(ret_on_curve == ret_frac_on_curve); + CHECK(ret_on_curve == ret_set_xo); + if (ret_set_xo) CHECK(secp256k1_fe_equal_var(&r, &q.x)); + } + /* Test batch gej -> ge conversion with many infinities. */ for (i = 0; i < 4 * runs + 1; i++) { int odd; From c47917bbd62c488fb168431169c1ffe780562da1 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 4 Nov 2022 16:18:40 -0400 Subject: [PATCH 160/557] Add ellswift module implementing ElligatorSwift MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The scheme implemented is described below, and largely follows the paper "SwiftEC: Shallue–van de Woestijne Indifferentiable Function To Elliptic Curves", by Chavez-Saab, Rodriguez-Henriquez, and Tibouchi (https://eprint.iacr.org/2022/759). A new 64-byte public key format is introduced, with the property that *every* 64-byte array is an encoding for a non-infinite curve point. Each curve point has roughly 2^256 distinct encodings. This permits disguising public keys as uniformly random bytes. The new API functions: * secp256k1_ellswift_encode: convert a normal public key to an ellswift 64-byte public key, using additional entropy to pick among the many possible encodings. * secp256k1_ellswift_decode: convert an ellswift 64-byte public key to a normal public key. * secp256k1_ellswift_create: a faster and safer equivalent to calling secp256k1_ec_pubkey_create + secp256k1_ellswift_encode. * secp256k1_ellswift_xdh: x-only ECDH directly on ellswift 64-byte public keys, where the key encodings are fed to the hash function. The scheme itself is documented in secp256k1_ellswift.h. --- CMakeLists.txt | 6 + Makefile.am | 4 + configure.ac | 10 + include/secp256k1_ellswift.h | 185 ++++++++ src/CMakeLists.txt | 3 + src/modules/ellswift/Makefile.am.include | 2 + src/modules/ellswift/main_impl.h | 542 +++++++++++++++++++++++ src/secp256k1.c | 4 + 8 files changed, 756 insertions(+) create mode 100644 include/secp256k1_ellswift.h create mode 100644 src/modules/ellswift/Makefile.am.include create mode 100644 src/modules/ellswift/main_impl.h diff --git a/CMakeLists.txt b/CMakeLists.txt index 240557f7dc..3107eb3bf1 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -71,6 +71,11 @@ if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) add_compile_definitions(ENABLE_MODULE_EXTRAKEYS=1) endif() +option(SECP256K1_ENABLE_MODULE_ELLSWIFT "Enable ElligatorSwift module." ON) +if(SECP256K1_ENABLE_MODULE_ELLSWIFT) + add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) +endif() + option(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS "Enable external default callback functions." OFF) if(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS) add_compile_definitions(USE_EXTERNAL_DEFAULT_CALLBACKS=1) @@ -270,6 +275,7 @@ message(" ECDH ................................ ${SECP256K1_ENABLE_MODULE_ECDH} message(" ECDSA pubkey recovery ............... ${SECP256K1_ENABLE_MODULE_RECOVERY}") message(" extrakeys ........................... ${SECP256K1_ENABLE_MODULE_EXTRAKEYS}") message(" schnorrsig .......................... ${SECP256K1_ENABLE_MODULE_SCHNORRSIG}") +message(" ElligatorSwift ...................... ${SECP256K1_ENABLE_MODULE_ELLSWIFT}") message("Parameters:") message(" ecmult window size .................. ${SECP256K1_ECMULT_WINDOW_SIZE}") message(" ecmult gen precision bits ........... ${SECP256K1_ECMULT_GEN_PREC_BITS}") diff --git a/Makefile.am b/Makefile.am index 51484a0eec..ee14ac4509 100644 --- a/Makefile.am +++ b/Makefile.am @@ -267,3 +267,7 @@ endif if ENABLE_MODULE_SCHNORRSIG include src/modules/schnorrsig/Makefile.am.include endif + +if ENABLE_MODULE_ELLSWIFT +include src/modules/ellswift/Makefile.am.include +endif diff --git a/configure.ac b/configure.ac index fe3ef90f20..82cf95132d 100644 --- a/configure.ac +++ b/configure.ac @@ -190,6 +190,10 @@ AC_ARG_ENABLE(module_schnorrsig, AS_HELP_STRING([--enable-module-schnorrsig],[enable schnorrsig module [default=yes]]), [], [SECP_SET_DEFAULT([enable_module_schnorrsig], [yes], [yes])]) +AC_ARG_ENABLE(module_ellswift, + AS_HELP_STRING([--enable-module-ellswift],[enable ElligatorSwift module [default=yes]]), [], + [SECP_SET_DEFAULT([enable_module_ellswift], [yes], [yes])]) + AC_ARG_ENABLE(external_default_callbacks, AS_HELP_STRING([--enable-external-default-callbacks],[enable external default callback functions [default=no]]), [], [SECP_SET_DEFAULT([enable_external_default_callbacks], [no], [no])]) @@ -402,6 +406,10 @@ if test x"$enable_module_schnorrsig" = x"yes"; then enable_module_extrakeys=yes fi +if test x"$enable_module_ellswift" = x"yes"; then + AC_DEFINE(ENABLE_MODULE_ELLSWIFT, 1, [Define this symbol to enable the ElligatorSwift module]) +fi + # Test if extrakeys is set after the schnorrsig module to allow the schnorrsig # module to set enable_module_extrakeys=yes if test x"$enable_module_extrakeys" = x"yes"; then @@ -444,6 +452,7 @@ AM_CONDITIONAL([ENABLE_MODULE_ECDH], [test x"$enable_module_ecdh" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_EXTRAKEYS], [test x"$enable_module_extrakeys" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_SCHNORRSIG], [test x"$enable_module_schnorrsig" = x"yes"]) +AM_CONDITIONAL([ENABLE_MODULE_ELLSWIFT], [test x"$enable_module_ellswift" = x"yes"]) AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$enable_external_asm" = x"yes"]) AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm32"]) AM_CONDITIONAL([BUILD_WINDOWS], [test "$build_windows" = "yes"]) @@ -465,6 +474,7 @@ echo " module ecdh = $enable_module_ecdh" echo " module recovery = $enable_module_recovery" echo " module extrakeys = $enable_module_extrakeys" echo " module schnorrsig = $enable_module_schnorrsig" +echo " module ellswift = $enable_module_ellswift" echo echo " asm = $set_asm" echo " ecmult window size = $set_ecmult_window" diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h new file mode 100644 index 0000000000..cc70f0bc34 --- /dev/null +++ b/include/secp256k1_ellswift.h @@ -0,0 +1,185 @@ +#ifndef SECP256K1_ELLSWIFT_H +#define SECP256K1_ELLSWIFT_H + +#include "secp256k1.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* This module provides an implementation of ElligatorSwift as well as a + * version of x-only ECDH using it. + * + * ElligatorSwift is described in https://eprint.iacr.org/2022/759 by + * Chavez-Saab, Rodriguez-Henriquez, and Tibouchi. It permits encoding + * uniformly chosen public keys as 64-byte arrays which are indistinguishable + * from uniformly random arrays. + * + * Let f be the function from pairs of field elements to point X coordinates, + * defined as follows (all operations modulo p = 2^256 - 2^32 - 977) + * f(u,t): + * - Let C = 0xa2d2ba93507f1df233770c2a797962cc61f6d15da14ecd47d8d27ae1cd5f852, + * a square root of -3. + * - If u=0, set u=1 instead. + * - If t=0, set t=1 instead. + * - If u^3 + t^2 + 7 = 0, multiply t by 2. + * - Let X = (u^3 + 7 - t^2) / (2 * t) + * - Let Y = (X + t) / (C * u) + * - Return the first in [u + 4 * Y^2, (-X/Y - u) / 2, (X/Y - u) / 2] that is an + * X coordinate on the curve (at least one of them is, for any u and t). + * + * Then an ElligatorSwift encoding of x consists of the 32-byte big-endian + * encodings of field elements u and t concatenated, where f(u,t) = x. + * The encoding algorithm is described in the paper, and effectively picks a + * uniformly random pair (u,t) among those which encode x. + * + * If the Y coordinate is relevant, it is given the same parity as t. + * + * Changes w.r.t. the the paper: + * - The u=0, t=0, and u^3+t^2+7=0 conditions result in decoding to the point + * at infinity in the paper. Here they are remapped to finite points. + * - The paper uses an additional encoding bit for the parity of y. Here the + * parity of t is used (negating t does not affect the decoded x coordinate, + * so this is possible). + */ + +/** A pointer to a function used by secp256k1_ellswift_xdh to hash the shared X + * coordinate along with the encoded public keys to a uniform shared secret. + * + * Returns: 1 if a shared secret was successfully computed. + * 0 will cause secp256k1_ellswift_xdh to fail and return 0. + * Other return values are not allowed, and the behaviour of + * secp256k1_ellswift_xdh is undefined for other return values. + * Out: output: pointer to an array to be filled by the function + * In: x32: pointer to the 32-byte serialized X coordinate + * of the resulting shared point (will not be NULL) + * ell_a64: pointer to the 64-byte encoded public key of party A + * (will not be NULL) + * ell_b64: pointer to the 64-byte encoded public key of party B + * (will not be NULL) + * data: arbitrary data pointer that is passed through + */ +typedef int (*secp256k1_ellswift_xdh_hash_function)( + unsigned char *output, + const unsigned char *x32, + const unsigned char *ell_a64, + const unsigned char *ell_b64, + void *data +); + +/** Construct a 64-byte ElligatorSwift encoding of a given pubkey. + * + * Returns: 1 always. + * Args: ctx: pointer to a context object + * Out: ell64: pointer to a 64-byte array to be filled + * In: pubkey: a pointer to a secp256k1_pubkey containing an + * initialized public key + * rnd32: pointer to 32 bytes of randomness + * + * It is recommended that rnd32 consists of 32 uniformly random bytes, not + * known to any adversary trying to detect whether public keys are being + * encoded, though 16 bytes of randomness (padded to an array of 32 bytes, + * e.g., with zeros) suffice to make the result indistinguishable from + * uniform. The randomness in rnd32 must not be a deterministic function of + * the pubkey (it can be derived from the private key, though). + * + * It is not guaranteed that the computed encoding is stable across versions + * of the library, even if all arguments to this function (including rnd32) + * are the same. + * + * This function runs in variable time. + */ +SECP256K1_API int secp256k1_ellswift_encode( + const secp256k1_context *ctx, + unsigned char *ell64, + const secp256k1_pubkey *pubkey, + const unsigned char *rnd32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Decode a 64-bytes ElligatorSwift encoded public key. + * + * Returns: always 1 + * Args: ctx: pointer to a context object + * Out: pubkey: pointer to a secp256k1_pubkey that will be filled + * In: ell64: pointer to a 64-byte array to decode + * + * This function runs in variable time. + */ +SECP256K1_API int secp256k1_ellswift_decode( + const secp256k1_context *ctx, + secp256k1_pubkey *pubkey, + const unsigned char *ell64 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Compute an ElligatorSwift public key for a secret key. + * + * Returns: 1: secret was valid, public key was stored. + * 0: secret was invalid, try again. + * Args: ctx: pointer to a context object + * Out: ell64: pointer to a 64-byte array to receive the ElligatorSwift + * public key + * In: seckey32: pointer to a 32-byte secret key + * auxrnd32: (optional) pointer to 32 bytes of randomness + * + * Constant time in seckey and auxrnd32, but not in the resulting public key. + * + * It is recommended that auxrnd32 contains 32 uniformly random bytes, though + * it is optional (and does result in encodings that are indistinguishable from + * uniform even without any auxrnd32). It differs from the (mandatory) rnd32 + * argument to secp256k1_ellswift_encode in this regard. + * + * This function can be used instead of calling secp256k1_ec_pubkey_create + * followed by secp256k1_ellswift_encode. It is safer, as it uses the secret + * key as entropy for the encoding (supplemented with auxrnd32, if provided). + * + * Like secp256k1_ellswift_encode, this function does not guarantee that the + * computed encoding is stable across versions of the library, even if all + * arguments (including auxrnd32) are the same. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ellswift_create( + const secp256k1_context *ctx, + unsigned char *ell64, + const unsigned char *seckey32, + const unsigned char *auxrnd32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Given a private key, and ElligatorSwift public keys sent in both directions, + * compute a shared secret using x-only Elliptic Curve Diffie-Hellman (ECDH). + * + * Returns: 1: shared secret was succesfully computed + * 0: secret was invalid or hashfp returned 0 + * Args: ctx: pointer to a context object. + * Out: output: pointer to an array to be filled by hashfp. + * In: ell_a64: pointer to the 64-byte encoded public key of party A + * (will not be NULL) + * ell_b64: pointer to the 64-byte encoded public key of party B + * (will not be NULL) + * seckey32: a pointer to our 32-byte secret key + * party: boolean indicating which party we are: zero if we are + * party A, non-zero if we are party B. seckey32 must be + * the private key corresponding to that party's ell_?64. + * This correspondence is not checked. + * hashfp: pointer to a hash function. + * data: arbitrary data pointer passed through to hashfp. + * + * Constant time in seckey32. + * + * This function is more efficient than decoding the public keys, and performing + * ECDH on them. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ellswift_xdh( + const secp256k1_context *ctx, + unsigned char *output, + const unsigned char *ell_a64, + const unsigned char *ell_b64, + const unsigned char *seckey32, + int party, + secp256k1_ellswift_xdh_hash_function hashfp, + void *data +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5) SECP256K1_ARG_NONNULL(7); + +#ifdef __cplusplus +} +#endif + +#endif /* SECP256K1_ELLSWIFT_H */ diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 93844caa7f..0bba19982a 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -132,6 +132,9 @@ if(SECP256K1_INSTALL) if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h") endif() + if(SECP256K1_ENABLE_MODULE_ELLSWIFT) + list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ellswift.h") + endif() install(FILES ${${PROJECT_NAME}_headers} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ) diff --git a/src/modules/ellswift/Makefile.am.include b/src/modules/ellswift/Makefile.am.include new file mode 100644 index 0000000000..b4f2e8d1dc --- /dev/null +++ b/src/modules/ellswift/Makefile.am.include @@ -0,0 +1,2 @@ +include_HEADERS += include/secp256k1_ellswift.h +noinst_HEADERS += src/modules/ellswift/main_impl.h diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h new file mode 100644 index 0000000000..72d52e206a --- /dev/null +++ b/src/modules/ellswift/main_impl.h @@ -0,0 +1,542 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_ELLSWIFT_MAIN_H +#define SECP256K1_MODULE_ELLSWIFT_MAIN_H + +#include "../../../include/secp256k1.h" +#include "../../../include/secp256k1_ellswift.h" +#include "../../eckey.h" +#include "../../hash.h" + +/** c1 = (sqrt(-3)-1)/2 */ +static const secp256k1_fe secp256k1_ellswift_c1 = SECP256K1_FE_CONST(0x851695d4, 0x9a83f8ef, 0x919bb861, 0x53cbcb16, 0x630fb68a, 0xed0a766a, 0x3ec693d6, 0x8e6afa40); +/** c2 = (-sqrt(-3)-1)/2 = -(c1+1) */ +static const secp256k1_fe secp256k1_ellswift_c2 = SECP256K1_FE_CONST(0x7ae96a2b, 0x657c0710, 0x6e64479e, 0xac3434e9, 0x9cf04975, 0x12f58995, 0xc1396c28, 0x719501ee); +/** c3 = (-sqrt(-3)+1)/2 = -c1 = c2+1 */ +static const secp256k1_fe secp256k1_ellswift_c3 = SECP256K1_FE_CONST(0x7ae96a2b, 0x657c0710, 0x6e64479e, 0xac3434e9, 0x9cf04975, 0x12f58995, 0xc1396c28, 0x719501ef); +/** c4 = (sqrt(-3)+1)/2 = -c2 = c1+1 */ +static const secp256k1_fe secp256k1_ellswift_c4 = SECP256K1_FE_CONST(0x851695d4, 0x9a83f8ef, 0x919bb861, 0x53cbcb16, 0x630fb68a, 0xed0a766a, 0x3ec693d6, 0x8e6afa41); + +/** Decode ElligatorSwift encoding (u, t) to a fraction xn/xd representing a curve X coordinate. */ +static void secp256k1_ellswift_xswiftec_frac_var(secp256k1_fe *xn, secp256k1_fe *xd, const secp256k1_fe *u, const secp256k1_fe *t) { + /* The implemented algorithm is the following (all operations in GF(p)): + * + * - Let c0 = sqrt(-3) = 0xa2d2ba93507f1df233770c2a797962cc61f6d15da14ecd47d8d27ae1cd5f852. + * - If u = 0, set u = 1. + * - If t = 0, set t = 1. + * - If u^3+7+t^2 = 0, set t = 2*t. + * - Let X = (u^3+7-t^2)/(2*t). + * - Let Y = (X+t)/(c0*u). + * - If x3 = u+4*Y^2 is a valid x coordinate, return it. + * - If x2 = (-X/Y-u)/2 is a valid x coordinate, return it. + * - Return x1 = (X/Y-u)/2 (which is now guaranteed to be a valid x coordinate). + * + * Introducing s=t^2, g=u^3+7, and simplifying x1=-(x2+u) we get: + * + * - Let c0 = ... + * - If u = 0, set u = 1. + * - If t = 0, set t = 1. + * - Let s = t^2 + * - Let g = u^3+7 + * - If g+s = 0, set t = 2*t, s = 4*s + * - Let X = (g-s)/(2*t). + * - Let Y = (X+t)/(c0*u) = (g+s)/(2*c0*t*u). + * - If x3 = u+4*Y^2 is a valid x coordinate, return it. + * - If x2 = (-X/Y-u)/2 is a valid x coordinate, return it. + * - Return x1 = -(x2+u). + * + * Now substitute Y^2 = -(g+s)^2/(12*s*u^2) and X/Y = c0*u*(g-s)/(g+s). This + * means X and Y do not need to be evaluated explicitly anymore. + * + * - ... + * - If g+s = 0, set s = 4*s. + * - If x3 = u-(g+s)^2/(3*s*u^2) is a valid x coordinate, return it. + * - If x2 = (-c0*u*(g-s)/(g+s)-u)/2 is a valid x coordinate, return it. + * - Return x1 = -(x2+u). + * + * Simplifying x2 using 2 additional constants: + * + * - Let c1 = (c0-1)/2 = 0x851695d49a83f8ef919bb86153cbcb16630fb68aed0a766a3ec693d68e6afa40. + * - Let c2 = (-c0-1)/2 = 0x7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee. + * - ... + * - If x2 = u*(c1*s+c2*g)/(g+s) is a valid x coordinate, return it. + * - ... + * + * Writing x3 as a fraction: + * + * - ... + * - If x3 = (3*s*u^3-(g+s)^2)/(3*s*u^2) ... + * - ... + + * Overall, we get: + * + * - Let c1 = 0x851695d49a83f8ef919bb86153cbcb16630fb68aed0a766a3ec693d68e6afa40. + * - Let c2 = 0x7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee. + * - If u = 0, set u = 1. + * - If t = 0, set s = 1, else set s = t^2. + * - Let g = u^3+7. + * - If g+s = 0, set s = 4*s. + * - If x3 = (3*s*u^3-(g+s)^2)/(3*s*u^2) is a valid x coordinate, return it. + * - If x2 = u*(c1*s+c2*g)/(g+s) is a valid x coordinate, return it. + * - Return x1 = -(x2+u). + */ + secp256k1_fe u1, s, g, p, d, n, l; + u1 = *u; + if (EXPECT(secp256k1_fe_normalizes_to_zero_var(&u1), 0)) u1 = secp256k1_fe_one; + secp256k1_fe_sqr(&s, t); + if (EXPECT(secp256k1_fe_normalizes_to_zero_var(t), 0)) s = secp256k1_fe_one; + secp256k1_fe_sqr(&l, &u1); /* l = u^2 */ + secp256k1_fe_mul(&g, &l, &u1); /* g = u^3 */ + secp256k1_fe_add_int(&g, SECP256K1_B); /* g = u^3 + 7 */ + p = g; /* p = g */ + secp256k1_fe_add(&p, &s); /* p = g+s */ + if (EXPECT(secp256k1_fe_normalizes_to_zero_var(&p), 0)) { + secp256k1_fe_mul_int(&s, 4); + /* Recompute p = g+s */ + p = g; /* p = g */ + secp256k1_fe_add(&p, &s); /* p = g+s */ + } + secp256k1_fe_mul(&d, &s, &l); /* d = s*u^2 */ + secp256k1_fe_mul_int(&d, 3); /* d = 3*s*u^2 */ + secp256k1_fe_sqr(&l, &p); /* l = (g+s)^2 */ + secp256k1_fe_negate(&l, &l, 1); /* l = -(g+s)^2 */ + secp256k1_fe_mul(&n, &d, &u1); /* n = 3*s*u^3 */ + secp256k1_fe_add(&n, &l); /* n = 3*s*u^3-(g+s)^2 */ + if (secp256k1_ge_x_frac_on_curve_var(&n, &d)) { + /* Return x3 = n/d = (3*s*u^3-(g+s)^2)/(3*s*u^2) */ + *xn = n; + *xd = d; + return; + } + *xd = p; + secp256k1_fe_mul(&l, &secp256k1_ellswift_c1, &s); /* l = c1*s */ + secp256k1_fe_mul(&n, &secp256k1_ellswift_c2, &g); /* n = c2*g */ + secp256k1_fe_add(&n, &l); /* n = c1*s+c2*g */ + secp256k1_fe_mul(&n, &n, &u1); /* n = u*(c1*s+c2*g) */ + /* Possible optimization: in the invocation below, p^2 = (g+s)^2 is computed, + * which we already have computed above. This could be deduplicated. */ + if (secp256k1_ge_x_frac_on_curve_var(&n, &p)) { + /* Return x2 = n/p = u*(c1*s+c2*g)/(g+s) */ + *xn = n; + return; + } + secp256k1_fe_mul(&l, &p, &u1); /* l = u*(g+s) */ + secp256k1_fe_add(&n, &l); /* n = u*(c1*s+c2*g)+u*(g+s) */ + secp256k1_fe_negate(xn, &n, 2); /* n = -u*(c1*s+c2*g)-u*(g+s) */ +#ifdef VERIFY + VERIFY_CHECK(secp256k1_ge_x_frac_on_curve_var(xn, &p)); +#endif + /* Return x3 = n/p = -(u*(c1*s+c2*g)/(g+s)+u) */ +} + +/** Decode ElligatorSwift encoding (u, t) to X coordinate. */ +static void secp256k1_ellswift_xswiftec_var(secp256k1_fe *x, const secp256k1_fe *u, const secp256k1_fe *t) { + secp256k1_fe xn, xd; + secp256k1_ellswift_xswiftec_frac_var(&xn, &xd, u, t); + secp256k1_fe_inv_var(&xd, &xd); + secp256k1_fe_mul(x, &xn, &xd); +} + +/** Decode ElligatorSwift encoding (u, t) to point P. */ +static void secp256k1_ellswift_swiftec_var(secp256k1_ge *p, const secp256k1_fe *u, const secp256k1_fe *t) { + secp256k1_fe x; + secp256k1_ellswift_xswiftec_var(&x, u, t); + secp256k1_ge_set_xo_var(p, &x, secp256k1_fe_is_odd(t)); +} + +/* Try to complete an ElligatorSwift encoding (u, t) for X coordinate x, given u and x. + * + * There may be up to 8 distinct t values such that (u, t) decodes back to x, but also + * fewer, or none at all. Each such partial inverse can be accessed individually using a + * distinct input argument c (in range 0-7), and some or all of these may return failure. + * The following guarantees exist: + * - Given (x, u), no two distinct c values give the same successful result t. + * - Every successful result maps back to x through secp256k1_ellswift_xswiftec_var. + * - Given (x, u), all t values that map back to x can be reached by combining the + * successful results from this function over all c values, with the exception of: + * - this function cannot be called with u=0 + * - no result with t=0 will be returned + * - no result for which u^3 + t^2 + 7 = 0 will be returned. + * + * The rather unusual encoding of bits in c (a large "if" based on the middle bit, and then + * using the low and high bits to pick signs of square roots) is to match the paper's + * encoding more closely: c=0 through c=3 match branches 1..4 in the paper, while c=4 through + * c=7 are copies of those with an additional negation of sqrt(w). + */ +static int secp256k1_ellswift_xswiftec_inv_var(secp256k1_fe *t, const secp256k1_fe *x_in, const secp256k1_fe *u_in, int c) { + /* The implemented algorithm is this (all arithmetic, except involving c, is mod p): + * + * - If (c & 2) = 0: + * - If (-x-u) is a valid X coordinate, fail. + * - Let s=-(u^3+7)/(u^2+u*x+x^2). + * - If s is not square, fail. + * - Let v=x. + * - If (c & 2) = 2: + * - Let s=x-u. + * - If s is not square, fail. + * - Let r=sqrt(-s*(4*(u^3+7)+3*u^2*s)); fail if it doesn't exist. + * - If (c & 1) = 1 and r = 0, fail. + * - If s=0, fail. + * - Let v=(r/s-u)/2. + * - Let w=sqrt(s). + * - If (c & 5) = 0: return -w*(c3*u + v). + * - If (c & 5) = 1: return w*(c4*u + v). + * - If (c & 5) = 4: return w*(c3*u + v). + * - If (c & 5) = 5: return -w*(c4*u + v). + */ + secp256k1_fe x = *x_in, u = *u_in, g, v, s, m, r, q; + int ret; + + secp256k1_fe_normalize_weak(&x); + secp256k1_fe_normalize_weak(&u); + +#ifdef VERIFY + VERIFY_CHECK(c >= 0 && c < 8); + VERIFY_CHECK(secp256k1_ge_x_on_curve_var(&x)); +#endif + + if (!(c & 2)) { + /* c is in {0, 1, 4, 5}. In this case we look for an inverse under the x1 (if c=0 or + * c=4) formula, or x2 (if c=1 or c=5) formula. */ + + /* If -u-x is a valid X coordinate, fail. This would yield an encoding that roundtrips + * back under the x3 formula instead (which has priority over x1 and x2, so the decoding + * would not match x). */ + m = x; /* m = x */ + secp256k1_fe_add(&m, &u); /* m = u+x */ + secp256k1_fe_negate(&m, &m, 2); /* m = -u-x */ + /* Test if (-u-x) is a valid X coordinate. If so, fail. */ + if (secp256k1_ge_x_on_curve_var(&m)) return 0; + + /* Let s = -(u^3 + 7)/(u^2 + u*x + x^2) [first part] */ + secp256k1_fe_sqr(&s, &m); /* s = (u+x)^2 */ + secp256k1_fe_negate(&s, &s, 1); /* s = -(u+x)^2 */ + secp256k1_fe_mul(&m, &u, &x); /* m = u*x */ + secp256k1_fe_add(&s, &m); /* s = -(u^2 + u*x + x^2) */ + + /* Note that at this point, s = 0 is impossible. If it were the case: + * s = -(u^2 + u*x + x^2) = 0 + * => u^2 + u*x + x^2 = 0 + * => (u + 2*x) * (u^2 + u*x + x^2) = 0 + * => 2*x^3 + 3*x^2*u + 3*x*u^2 + u^3 = 0 + * => (x + u)^3 + x^3 = 0 + * => x^3 = -(x + u)^3 + * => x^3 + B = (-u - x)^3 + B + * + * However, we know x^3 + B is square (because x is on the curve) and + * that (-u-x)^3 + B is not square (the secp256k1_ge_x_on_curve_var(&m) + * test above would have failed). This is a contradiction, and thus the + * assumption s=0 is false. */ +#ifdef VERIFY + VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(&s)); +#endif + + /* If s is not square, fail. We have not fully computed s yet, but s is square iff + * -(u^3+7)*(u^2+u*x+x^2) is square (because a/b is square iff a*b is square and b is + * nonzero). */ + secp256k1_fe_sqr(&g, &u); /* g = u^2 */ + secp256k1_fe_mul(&g, &g, &u); /* g = u^3 */ + secp256k1_fe_add_int(&g, SECP256K1_B); /* g = u^3+7 */ + secp256k1_fe_mul(&m, &s, &g); /* m = -(u^3 + 7)*(u^2 + u*x + x^2) */ + if (!secp256k1_fe_is_square_var(&m)) return 0; + + /* Let s = -(u^3 + 7)/(u^2 + u*x + x^2) [second part] */ + secp256k1_fe_inv_var(&s, &s); /* s = -1/(u^2 + u*x + x^2) [no div by 0] */ + secp256k1_fe_mul(&s, &s, &g); /* s = -(u^3 + 7)/(u^2 + u*x + x^2) */ + + /* Let v = x. */ + v = x; + } else { + /* c is in {2, 3, 6, 7}. In this case we look for an inverse under the x3 formula. */ + + /* Let s = x-u. */ + secp256k1_fe_negate(&m, &u, 1); /* m = -u */ + s = m; /* s = -u */ + secp256k1_fe_add(&s, &x); /* s = x-u */ + + /* If s is not square, fail. */ + if (!secp256k1_fe_is_square_var(&s)) return 0; + + /* Let r = sqrt(-s*(4*(u^3+7)+3*u^2*s)); fail if it doesn't exist. */ + secp256k1_fe_sqr(&g, &u); /* g = u^2 */ + secp256k1_fe_mul(&q, &s, &g); /* q = s*u^2 */ + secp256k1_fe_mul_int(&q, 3); /* q = 3*s*u^2 */ + secp256k1_fe_mul(&g, &g, &u); /* g = u^3 */ + secp256k1_fe_mul_int(&g, 4); /* g = 4*u^3 */ + secp256k1_fe_add_int(&g, 4 * SECP256K1_B); /* g = 4*(u^3+7) */ + secp256k1_fe_add(&q, &g); /* q = 4*(u^3+7)+3*s*u^2 */ + secp256k1_fe_mul(&q, &q, &s); /* q = s*(4*(u^3+7)+3*u^2*s) */ + secp256k1_fe_negate(&q, &q, 1); /* q = -s*(4*(u^3+7)+3*u^2*s) */ + if (!secp256k1_fe_is_square_var(&q)) return 0; + ret = secp256k1_fe_sqrt(&r, &q); /* r = sqrt(-s*(4*(u^3+7)+3*u^2*s)) */ + VERIFY_CHECK(ret); + + /* If (c & 1) = 1 and r = 0, fail. */ + if (EXPECT((c & 1) && secp256k1_fe_normalizes_to_zero_var(&r), 0)) return 0; + + /* If s = 0, fail. */ + if (EXPECT(secp256k1_fe_normalizes_to_zero_var(&s), 0)) return 0; + + /* Let v = (r/s-u)/2. */ + secp256k1_fe_inv_var(&v, &s); /* v = 1/s [no div by 0] */ + secp256k1_fe_mul(&v, &v, &r); /* v = r/s */ + secp256k1_fe_add(&v, &m); /* v = r/s-u */ + secp256k1_fe_half(&v); /* v = (r/s-u)/2 */ + } + + /* Let w = sqrt(s). */ + ret = secp256k1_fe_sqrt(&m, &s); /* m = sqrt(s) = w */ + VERIFY_CHECK(ret); + + /* Return logic. */ + if ((c & 5) == 0 || (c & 5) == 5) { + secp256k1_fe_negate(&m, &m, 1); /* m = -w */ + } + /* Now m = {-w if c&5=0 or c&5=5; w otherwise}. */ + secp256k1_fe_mul(&u, &u, c&1 ? &secp256k1_ellswift_c4 : &secp256k1_ellswift_c3); + /* u = {c4 if c&1=1; c3 otherwise}*u */ + secp256k1_fe_add(&u, &v); /* u = {c4 if c&1=1; c3 otherwise}*u + v */ + secp256k1_fe_mul(t, &m, &u); + return 1; +} + +/** Use SHA256 as a PRNG, returning SHA256(hasher || cnt). + * + * hasher is a SHA256 object to which an incrementing 4-byte counter is written to generate randomness. + * Writing 13 bytes (4 bytes for counter, plus 9 bytes for the SHA256 padding) cannot cross a + * 64-byte block size boundary (to make sure it only triggers a single SHA256 compression). */ +static void secp256k1_ellswift_prng(unsigned char* out32, const secp256k1_sha256 *hasher, uint32_t cnt) { + secp256k1_sha256 hash = *hasher; + unsigned char buf4[4]; +#ifdef VERIFY + size_t blocks = hash.bytes >> 6; +#endif + buf4[0] = cnt; + buf4[1] = cnt >> 8; + buf4[2] = cnt >> 16; + buf4[3] = cnt >> 24; + secp256k1_sha256_write(&hash, buf4, 4); + secp256k1_sha256_finalize(&hash, out32); +#ifdef VERIFY + /* Writing and finalizing together should trigger exactly one SHA256 compression. */ + VERIFY_CHECK(((hash.bytes) >> 6) == (blocks + 1)); +#endif +} + +/** Find an ElligatorSwift encoding (u, t) for X coordinate x, and random Y coordinate. + * + * u32 is the 32-byte big endian encoding of u; t is the output field element t that still + * needs encoding. + * + * hasher is a hasher in the secp256k1_ellswift_prng sense, with the same restrictions. */ +static void secp256k1_ellswift_xelligatorswift_var(unsigned char *u32, secp256k1_fe *t, const secp256k1_fe *x, const secp256k1_sha256 *hasher) { + /* Pool of 3-bit branch values. */ + unsigned char branch_hash[32]; + /* Number of 3-bit values in branch_hash left. */ + int branches_left = 0; + /* Field elements u and branch values are extracted from RNG based on hasher for consecutive + * values of cnt. cnt==0 is first used to populate a pool of 64 4-bit branch values. The 64 + * cnt values that follow are used to generate field elements u. cnt==65 (and multiples + * thereof) are used to repopulate the pool and start over, if that were ever necessary. + * On average, 4 iterations are needed. */ + uint32_t cnt = 0; + while (1) { + int branch; + secp256k1_fe u; + /* If the pool of branch values is empty, populate it. */ + if (branches_left == 0) { + secp256k1_ellswift_prng(branch_hash, hasher, cnt++); + branches_left = 64; + } + /* Take a 3-bit branch value from the branch pool (top bit is discarded). */ + --branches_left; + branch = (branch_hash[branches_left >> 1] >> ((branches_left & 1) << 2)) & 7; + /* Compute a new u value by hashing. */ + secp256k1_ellswift_prng(u32, hasher, cnt++); + /* overflow is not a problem (we prefer uniform u32 over uniform u). */ + secp256k1_fe_set_b32_mod(&u, u32); + /* Since u is the output of a hash, it should practically never be 0. We could apply the + * u=0 to u=1 correction here too to deal with that case still, but it's such a low + * probability event that we do not bother. */ +#ifdef VERIFY + VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(&u)); +#endif + /* Find a remainder t, and return it if found. */ + if (EXPECT(secp256k1_ellswift_xswiftec_inv_var(t, x, &u, branch), 0)) break; + } +} + +/** Find an ElligatorSwift encoding (u, t) for point P. + * + * This is similar secp256k1_ellswift_xelligatorswift_var, except it takes a full group element p + * as input, and returns an encoding that matches the provided Y coordinate rather than a random + * one. + */ +static void secp256k1_ellswift_elligatorswift_var(unsigned char *u32, secp256k1_fe *t, const secp256k1_ge *p, const secp256k1_sha256 *hasher) { + secp256k1_ellswift_xelligatorswift_var(u32, t, &p->x, hasher); + secp256k1_fe_normalize_var(t); + if (secp256k1_fe_is_odd(t) != secp256k1_fe_is_odd(&p->y)) { + secp256k1_fe_negate(t, t, 1); + secp256k1_fe_normalize_var(t); + } +} + +/** Set hash state to the BIP340 tagged hash midstate for "secp256k1_ellswift_encode". */ +static void secp256k1_ellswift_sha256_init_encode(secp256k1_sha256* hash) { + secp256k1_sha256_initialize(hash); + hash->s[0] = 0xd1a6524bul; + hash->s[1] = 0x028594b3ul; + hash->s[2] = 0x96e42f4eul; + hash->s[3] = 0x1037a177ul; + hash->s[4] = 0x1b8fcb8bul; + hash->s[5] = 0x56023885ul; + hash->s[6] = 0x2560ede1ul; + hash->s[7] = 0xd626b715ul; + + hash->bytes = 64; +} + +int secp256k1_ellswift_encode(const secp256k1_context *ctx, unsigned char *ell64, const secp256k1_pubkey *pubkey, const unsigned char *rnd32) { + secp256k1_ge p; + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(ell64 != NULL); + ARG_CHECK(pubkey != NULL); + ARG_CHECK(rnd32 != NULL); + + if (secp256k1_pubkey_load(ctx, &p, pubkey)) { + secp256k1_fe t; + unsigned char p64[64] = {0}; + size_t ser_size; + int ser_ret; + secp256k1_sha256 hash; + + /* Set up hasher state; the used RNG is H(pubkey || "\x00"*31 || rnd32 || cnt++), using + * BIP340 tagged hash with tag "secp256k1_ellswift_encode". */ + secp256k1_ellswift_sha256_init_encode(&hash); + ser_ret = secp256k1_eckey_pubkey_serialize(&p, p64, &ser_size, 1); + VERIFY_CHECK(ser_ret && ser_size == 33); + secp256k1_sha256_write(&hash, p64, sizeof(p64)); + secp256k1_sha256_write(&hash, rnd32, 32); + + /* Compute ElligatorSwift encoding and construct output. */ + secp256k1_ellswift_elligatorswift_var(ell64, &t, &p, &hash); /* puts u in ell64[0..32] */ + secp256k1_fe_get_b32(ell64 + 32, &t); /* puts t in ell64[32..64] */ + return 1; + } + /* Only reached in case the provided pubkey is invalid. */ + memset(ell64, 0, 64); + return 0; +} + +/** Set hash state to the BIP340 tagged hash midstate for "secp256k1_ellswift_create". */ +static void secp256k1_ellswift_sha256_init_create(secp256k1_sha256* hash) { + secp256k1_sha256_initialize(hash); + hash->s[0] = 0xd29e1bf5ul; + hash->s[1] = 0xf7025f42ul; + hash->s[2] = 0x9b024773ul; + hash->s[3] = 0x094cb7d5ul; + hash->s[4] = 0xe59ed789ul; + hash->s[5] = 0x03bc9786ul; + hash->s[6] = 0x68335b35ul; + hash->s[7] = 0x4e363b53ul; + + hash->bytes = 64; +} + +int secp256k1_ellswift_create(const secp256k1_context *ctx, unsigned char *ell64, const unsigned char *seckey32, const unsigned char *auxrnd32) { + secp256k1_ge p; + secp256k1_fe t; + secp256k1_sha256 hash; + secp256k1_scalar seckey_scalar; + int ret; + static const unsigned char zero32[32] = {0}; + + /* Sanity check inputs. */ + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(ell64 != NULL); + memset(ell64, 0, 64); + ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx)); + ARG_CHECK(seckey32 != NULL); + + /* Compute (affine) public key */ + ret = secp256k1_ec_pubkey_create_helper(&ctx->ecmult_gen_ctx, &seckey_scalar, &p, seckey32); + secp256k1_fe_normalize_var(&p.x); + secp256k1_fe_normalize_var(&p.y); + + /* Set up hasher state. The used RNG is H(privkey || "\x00"*32 [|| auxrnd32] || cnt++), + * using BIP340 tagged hash with tag "secp256k1_ellswift_create". */ + secp256k1_ellswift_sha256_init_create(&hash); + secp256k1_sha256_write(&hash, seckey32, 32); + secp256k1_sha256_write(&hash, zero32, sizeof(zero32)); + if (auxrnd32) secp256k1_sha256_write(&hash, auxrnd32, 32); + + /* Compute ElligatorSwift encoding and construct output. */ + secp256k1_ellswift_elligatorswift_var(ell64, &t, &p, &hash); /* puts u in ell64[0..32] */ + secp256k1_fe_get_b32(ell64 + 32, &t); /* puts t in ell64[32..64] */ + + secp256k1_memczero(ell64, 64, !ret); + secp256k1_scalar_clear(&seckey_scalar); + + return ret; +} + +int secp256k1_ellswift_decode(const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const unsigned char *ell64) { + secp256k1_fe u, t; + secp256k1_ge p; + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(pubkey != NULL); + ARG_CHECK(ell64 != NULL); + + secp256k1_fe_set_b32_mod(&u, ell64); + secp256k1_fe_set_b32_mod(&t, ell64 + 32); + secp256k1_fe_normalize_var(&t); + secp256k1_ellswift_swiftec_var(&p, &u, &t); + secp256k1_pubkey_save(pubkey, &p); + return 1; +} + +int secp256k1_ellswift_xdh(const secp256k1_context *ctx, unsigned char *output, const unsigned char *ell_a64, const unsigned char *ell_b64, const unsigned char *seckey32, int party, secp256k1_ellswift_xdh_hash_function hashfp, void *data) { + int ret = 0; + int overflow; + secp256k1_scalar s; + secp256k1_fe xn, xd, px, u, t; + unsigned char sx[32]; + const unsigned char* theirs64; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(output != NULL); + ARG_CHECK(ell_a64 != NULL); + ARG_CHECK(ell_b64 != NULL); + ARG_CHECK(seckey32 != NULL); + ARG_CHECK(hashfp != NULL); + + /* Load remote public key (as fraction). */ + theirs64 = party ? ell_a64 : ell_b64; + secp256k1_fe_set_b32_mod(&u, theirs64); + secp256k1_fe_set_b32_mod(&t, theirs64 + 32); + secp256k1_ellswift_xswiftec_frac_var(&xn, &xd, &u, &t); + + /* Load private key (using one if invalid). */ + secp256k1_scalar_set_b32(&s, seckey32, &overflow); + overflow = secp256k1_scalar_is_zero(&s); + secp256k1_scalar_cmov(&s, &secp256k1_scalar_one, overflow); + + /* Compute shared X coordinate. */ + secp256k1_ecmult_const_xonly(&px, &xn, &xd, &s, 1); + secp256k1_fe_normalize(&px); + secp256k1_fe_get_b32(sx, &px); + + /* Invoke hasher */ + ret = hashfp(output, sx, ell_a64, ell_b64, data); + + memset(sx, 0, 32); + secp256k1_fe_clear(&px); + secp256k1_scalar_clear(&s); + + return !!ret & !overflow; +} + +#endif diff --git a/src/secp256k1.c b/src/secp256k1.c index 3851f9625a..4c11e7f0b8 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -811,3 +811,7 @@ int secp256k1_tagged_sha256(const secp256k1_context* ctx, unsigned char *hash32, #ifdef ENABLE_MODULE_SCHNORRSIG # include "modules/schnorrsig/main_impl.h" #endif + +#ifdef ENABLE_MODULE_ELLSWIFT +# include "modules/ellswift/main_impl.h" +#endif From 9695deb351e7742f78dc4ed72dea6655dcf6bb0e Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 4 Nov 2022 15:59:33 -0400 Subject: [PATCH 161/557] Add tests for ellswift module These include both test vectors taken from BIP324, as randomized unit tests. --- src/modules/ellswift/Makefile.am.include | 1 + src/modules/ellswift/tests_impl.h | 342 +++++++++++++++++++++++ src/modules/schnorrsig/tests_impl.h | 11 - src/tests.c | 19 ++ 4 files changed, 362 insertions(+), 11 deletions(-) create mode 100644 src/modules/ellswift/tests_impl.h diff --git a/src/modules/ellswift/Makefile.am.include b/src/modules/ellswift/Makefile.am.include index b4f2e8d1dc..4067b0d814 100644 --- a/src/modules/ellswift/Makefile.am.include +++ b/src/modules/ellswift/Makefile.am.include @@ -1,2 +1,3 @@ include_HEADERS += include/secp256k1_ellswift.h noinst_HEADERS += src/modules/ellswift/main_impl.h +noinst_HEADERS += src/modules/ellswift/tests_impl.h diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h new file mode 100644 index 0000000000..5fe26d0eca --- /dev/null +++ b/src/modules/ellswift/tests_impl.h @@ -0,0 +1,342 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_ELLSWIFT_TESTS_H +#define SECP256K1_MODULE_ELLSWIFT_TESTS_H + +#include "../../../include/secp256k1_ellswift.h" + +struct ellswift_xswiftec_inv_test { + int enc_bitmap; + secp256k1_fe u; + secp256k1_fe x; + secp256k1_fe encs[8]; +}; + +struct ellswift_decode_test { + unsigned char enc[64]; + secp256k1_fe x; + int odd_y; +}; + +/* Set of (point, encodings) test vectors, selected to maximize branch coverage, part of the BIP324 + * test vectors. Created using an independent implementation, and tested decoding against paper + * authors' code. */ +static const struct ellswift_xswiftec_inv_test ellswift_xswiftec_inv_tests[] = { + {0xcc, SECP256K1_FE_CONST(0x05ff6bda, 0xd900fc32, 0x61bc7fe3, 0x4e2fb0f5, 0x69f06e09, 0x1ae437d3, 0xa52e9da0, 0xcbfb9590), SECP256K1_FE_CONST(0x80cdf637, 0x74ec7022, 0xc89a5a85, 0x58e373a2, 0x79170285, 0xe0ab2741, 0x2dbce510, 0xbdfe23fc), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x45654798, 0xece071ba, 0x79286d04, 0xf7f3eb1c, 0x3f1d17dd, 0x883610f2, 0xad2efd82, 0xa287466b), SECP256K1_FE_CONST(0x0aeaa886, 0xf6b76c71, 0x58452418, 0xcbf5033a, 0xdc5747e9, 0xe9b5d3b2, 0x303db969, 0x36528557), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xba9ab867, 0x131f8e45, 0x86d792fb, 0x080c14e3, 0xc0e2e822, 0x77c9ef0d, 0x52d1027c, 0x5d78b5c4), SECP256K1_FE_CONST(0xf5155779, 0x0948938e, 0xa7badbe7, 0x340afcc5, 0x23a8b816, 0x164a2c4d, 0xcfc24695, 0xc9ad76d8)}}, + {0x33, SECP256K1_FE_CONST(0x1737a85f, 0x4c8d146c, 0xec96e3ff, 0xdca76d99, 0x03dcf3bd, 0x53061868, 0xd478c78c, 0x63c2aa9e), SECP256K1_FE_CONST(0x39e48dd1, 0x50d2f429, 0xbe088dfd, 0x5b61882e, 0x7e840748, 0x3702ae9a, 0x5ab35927, 0xb15f85ea), {SECP256K1_FE_CONST(0x1be8cc0b, 0x04be0c68, 0x1d0c6a68, 0xf733f82c, 0x6c896e0c, 0x8a262fcd, 0x392918e3, 0x03a7abf4), SECP256K1_FE_CONST(0x605b5814, 0xbf9b8cb0, 0x66667c9e, 0x5480d22d, 0xc5b6c92f, 0x14b4af3e, 0xe0a9eb83, 0xb03685e3), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xe41733f4, 0xfb41f397, 0xe2f39597, 0x08cc07d3, 0x937691f3, 0x75d9d032, 0xc6d6e71b, 0xfc58503b), SECP256K1_FE_CONST(0x9fa4a7eb, 0x4064734f, 0x99998361, 0xab7f2dd2, 0x3a4936d0, 0xeb4b50c1, 0x1f56147b, 0x4fc9764c), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x00, SECP256K1_FE_CONST(0x1aaa1cce, 0xbf9c7241, 0x91033df3, 0x66b36f69, 0x1c4d902c, 0x228033ff, 0x4516d122, 0xb2564f68), SECP256K1_FE_CONST(0xc7554125, 0x9d3ba98f, 0x207eaa30, 0xc69634d1, 0x87d0b6da, 0x594e719e, 0x420f4898, 0x638fc5b0), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x33, SECP256K1_FE_CONST(0x2323a1d0, 0x79b0fd72, 0xfc8bb62e, 0xc34230a8, 0x15cb0596, 0xc2bfac99, 0x8bd6b842, 0x60f5dc26), SECP256K1_FE_CONST(0x239342df, 0xb675500a, 0x34a19631, 0x0b8d87d5, 0x4f49dcac, 0x9da50c17, 0x43ceab41, 0xa7b249ff), {SECP256K1_FE_CONST(0xf63580b8, 0xaa49c484, 0x6de56e39, 0xe1b3e73f, 0x171e881e, 0xba8c66f6, 0x14e67e5c, 0x975dfc07), SECP256K1_FE_CONST(0xb6307b33, 0x2e699f1c, 0xf77841d9, 0x0af25365, 0x404deb7f, 0xed5edb30, 0x90db49e6, 0x42a156b6), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x09ca7f47, 0x55b63b7b, 0x921a91c6, 0x1e4c18c0, 0xe8e177e1, 0x45739909, 0xeb1981a2, 0x68a20028), SECP256K1_FE_CONST(0x49cf84cc, 0xd19660e3, 0x0887be26, 0xf50dac9a, 0xbfb21480, 0x12a124cf, 0x6f24b618, 0xbd5ea579), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x33, SECP256K1_FE_CONST(0x2dc90e64, 0x0cb646ae, 0x9164c0b5, 0xa9ef0169, 0xfebe34dc, 0x4437d6e4, 0x6acb0e27, 0xe219d1e8), SECP256K1_FE_CONST(0xd236f19b, 0xf349b951, 0x6e9b3f4a, 0x5610fe96, 0x0141cb23, 0xbbc8291b, 0x9534f1d7, 0x1de62a47), {SECP256K1_FE_CONST(0xe69df7d9, 0xc026c366, 0x00ebdf58, 0x80726758, 0x47c0c431, 0xc8eb7306, 0x82533e96, 0x4b6252c9), SECP256K1_FE_CONST(0x4f18bbdf, 0x7c2d6c5f, 0x818c1880, 0x2fa35cd0, 0x69eaa79f, 0xff74e4fc, 0x837c80d9, 0x3fece2f8), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x19620826, 0x3fd93c99, 0xff1420a7, 0x7f8d98a7, 0xb83f3bce, 0x37148cf9, 0x7dacc168, 0xb49da966), SECP256K1_FE_CONST(0xb0e74420, 0x83d293a0, 0x7e73e77f, 0xd05ca32f, 0x96155860, 0x008b1b03, 0x7c837f25, 0xc0131937), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0xcc, SECP256K1_FE_CONST(0x3edd7b39, 0x80e2f2f3, 0x4d1409a2, 0x07069f88, 0x1fda5f96, 0xf08027ac, 0x4465b63d, 0xc278d672), SECP256K1_FE_CONST(0x053a98de, 0x4a27b196, 0x1155822b, 0x3a3121f0, 0x3b2a1445, 0x8bd80eb4, 0xa560c4c7, 0xa85c149c), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xb3dae4b7, 0xdcf858e4, 0xc6968057, 0xcef2b156, 0x46543152, 0x6538199c, 0xf52dc1b2, 0xd62fda30), SECP256K1_FE_CONST(0x4aa77dd5, 0x5d6b6d3c, 0xfa10cc9d, 0x0fe42f79, 0x232e4575, 0x661049ae, 0x36779c1d, 0x0c666d88), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x4c251b48, 0x2307a71b, 0x39697fa8, 0x310d4ea9, 0xb9abcead, 0x9ac7e663, 0x0ad23e4c, 0x29d021ff), SECP256K1_FE_CONST(0xb558822a, 0xa29492c3, 0x05ef3362, 0xf01bd086, 0xdcd1ba8a, 0x99efb651, 0xc98863e1, 0xf3998ea7)}}, + {0x00, SECP256K1_FE_CONST(0x4295737e, 0xfcb1da6f, 0xb1d96b9c, 0xa7dcd1e3, 0x20024b37, 0xa736c494, 0x8b625981, 0x73069f70), SECP256K1_FE_CONST(0xfa7ffe4f, 0x25f88362, 0x831c087a, 0xfe2e8a9b, 0x0713e2ca, 0xc1ddca6a, 0x383205a2, 0x66f14307), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0xff, SECP256K1_FE_CONST(0x587c1a0c, 0xee91939e, 0x7f784d23, 0xb963004a, 0x3bf44f5d, 0x4e32a008, 0x1995ba20, 0xb0fca59e), SECP256K1_FE_CONST(0x2ea98853, 0x0715e8d1, 0x0363907f, 0xf2512452, 0x4d471ba2, 0x454d5ce3, 0xbe3f0419, 0x4dfd3a3c), {SECP256K1_FE_CONST(0xcfd5a094, 0xaa0b9b88, 0x91b76c6a, 0xb9438f66, 0xaa1c095a, 0x65f9f701, 0x35e81712, 0x92245e74), SECP256K1_FE_CONST(0xa89057d7, 0xc6563f0d, 0x6efa19ae, 0x84412b8a, 0x7b47e791, 0xa191ecdf, 0xdf2af84f, 0xd97bc339), SECP256K1_FE_CONST(0x475d0ae9, 0xef46920d, 0xf07b3411, 0x7be5a081, 0x7de1023e, 0x3cc32689, 0xe9be145b, 0x406b0aef), SECP256K1_FE_CONST(0xa0759178, 0xad802324, 0x54f827ef, 0x05ea3e72, 0xad8d7541, 0x8e6d4cc1, 0xcd4f5306, 0xc5e7c453), SECP256K1_FE_CONST(0x302a5f6b, 0x55f46477, 0x6e489395, 0x46bc7099, 0x55e3f6a5, 0x9a0608fe, 0xca17e8ec, 0x6ddb9dbb), SECP256K1_FE_CONST(0x576fa828, 0x39a9c0f2, 0x9105e651, 0x7bbed475, 0x84b8186e, 0x5e6e1320, 0x20d507af, 0x268438f6), SECP256K1_FE_CONST(0xb8a2f516, 0x10b96df2, 0x0f84cbee, 0x841a5f7e, 0x821efdc1, 0xc33cd976, 0x1641eba3, 0xbf94f140), SECP256K1_FE_CONST(0x5f8a6e87, 0x527fdcdb, 0xab07d810, 0xfa15c18d, 0x52728abe, 0x7192b33e, 0x32b0acf8, 0x3a1837dc)}}, + {0xcc, SECP256K1_FE_CONST(0x5fa88b33, 0x65a635cb, 0xbcee003c, 0xce9ef51d, 0xd1a310de, 0x277e441a, 0xbccdb7be, 0x1e4ba249), SECP256K1_FE_CONST(0x79461ff6, 0x2bfcbcac, 0x4249ba84, 0xdd040f2c, 0xec3c63f7, 0x25204dc7, 0xf464c16b, 0xf0ff3170), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x6bb700e1, 0xf4d7e236, 0xe8d193ff, 0x4a76c1b3, 0xbcd4e2b2, 0x5acac3d5, 0x1c8dac65, 0x3fe909a0), SECP256K1_FE_CONST(0xf4c73410, 0x633da7f6, 0x3a4f1d55, 0xaec6dd32, 0xc4c6d89e, 0xe74075ed, 0xb5515ed9, 0x0da9e683), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x9448ff1e, 0x0b281dc9, 0x172e6c00, 0xb5893e4c, 0x432b1d4d, 0xa5353c2a, 0xe3725399, 0xc016f28f), SECP256K1_FE_CONST(0x0b38cbef, 0x9cc25809, 0xc5b0e2aa, 0x513922cd, 0x3b392761, 0x18bf8a12, 0x4aaea125, 0xf25615ac)}}, + {0xcc, SECP256K1_FE_CONST(0x6fb31c75, 0x31f03130, 0xb42b155b, 0x952779ef, 0xbb46087d, 0xd9807d24, 0x1a48eac6, 0x3c3d96d6), SECP256K1_FE_CONST(0x56f81be7, 0x53e8d4ae, 0x4940ea6f, 0x46f6ec9f, 0xda66a6f9, 0x6cc95f50, 0x6cb2b574, 0x90e94260), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x59059774, 0x795bdb7a, 0x837fbe11, 0x40a5fa59, 0x984f48af, 0x8df95d57, 0xdd6d1c05, 0x437dcec1), SECP256K1_FE_CONST(0x22a644db, 0x79376ad4, 0xe7b3a009, 0xe58b3f13, 0x137c54fd, 0xf911122c, 0xc93667c4, 0x7077d784), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xa6fa688b, 0x86a42485, 0x7c8041ee, 0xbf5a05a6, 0x67b0b750, 0x7206a2a8, 0x2292e3f9, 0xbc822d6e), SECP256K1_FE_CONST(0xdd59bb24, 0x86c8952b, 0x184c5ff6, 0x1a74c0ec, 0xec83ab02, 0x06eeedd3, 0x36c9983a, 0x8f8824ab)}}, + {0x00, SECP256K1_FE_CONST(0x704cd226, 0xe71cb682, 0x6a590e80, 0xdac90f2d, 0x2f5830f0, 0xfdf135a3, 0xeae3965b, 0xff25ff12), SECP256K1_FE_CONST(0x138e0afa, 0x68936ee6, 0x70bd2b8d, 0xb53aedbb, 0x7bea2a85, 0x97388b24, 0xd0518edd, 0x22ad66ec), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x33, SECP256K1_FE_CONST(0x725e9147, 0x92cb8c89, 0x49e7e116, 0x8b7cdd8a, 0x8094c91c, 0x6ec2202c, 0xcd53a6a1, 0x8771edeb), SECP256K1_FE_CONST(0x8da16eb8, 0x6d347376, 0xb6181ee9, 0x74832275, 0x7f6b36e3, 0x913ddfd3, 0x32ac595d, 0x788e0e44), {SECP256K1_FE_CONST(0xdd357786, 0xb9f68733, 0x30391aa5, 0x62580965, 0x4e43116e, 0x82a5a5d8, 0x2ffd1d66, 0x24101fc4), SECP256K1_FE_CONST(0xa0b7efca, 0x01814594, 0xc59c9aae, 0x8e497001, 0x86ca5d95, 0xe88bcc80, 0x399044d9, 0xc2d8613d), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x22ca8879, 0x460978cc, 0xcfc6e55a, 0x9da7f69a, 0xb1bcee91, 0x7d5a5a27, 0xd002e298, 0xdbefdc6b), SECP256K1_FE_CONST(0x5f481035, 0xfe7eba6b, 0x3a636551, 0x71b68ffe, 0x7935a26a, 0x1774337f, 0xc66fbb25, 0x3d279af2), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x00, SECP256K1_FE_CONST(0x78fe6b71, 0x7f2ea4a3, 0x2708d79c, 0x151bf503, 0xa5312a18, 0xc0963437, 0xe865cc6e, 0xd3f6ae97), SECP256K1_FE_CONST(0x8701948e, 0x80d15b5c, 0xd8f72863, 0xeae40afc, 0x5aced5e7, 0x3f69cbc8, 0x179a3390, 0x2c094d98), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x44, SECP256K1_FE_CONST(0x7c37bb9c, 0x5061dc07, 0x413f11ac, 0xd5a34006, 0xe64c5c45, 0x7fdb9a43, 0x8f217255, 0xa961f50d), SECP256K1_FE_CONST(0x5c1a76b4, 0x4568eb59, 0xd6789a74, 0x42d9ed7c, 0xdc6226b7, 0x752b4ff8, 0xeaf8e1a9, 0x5736e507), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xb94d30cd, 0x7dbff60b, 0x64620c17, 0xca0fafaa, 0x40b3d1f5, 0x2d077a60, 0xa2e0cafd, 0x145086c2), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x46b2cf32, 0x824009f4, 0x9b9df3e8, 0x35f05055, 0xbf4c2e0a, 0xd2f8859f, 0x5d1f3501, 0xebaf756d), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x00, SECP256K1_FE_CONST(0x82388888, 0x967f82a6, 0xb444438a, 0x7d44838e, 0x13c0d478, 0xb9ca060d, 0xa95a41fb, 0x94303de6), SECP256K1_FE_CONST(0x29e96541, 0x70628fec, 0x8b497289, 0x8b113cf9, 0x8807f460, 0x9274f4f3, 0x140d0674, 0x157c90a0), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x33, SECP256K1_FE_CONST(0x91298f57, 0x70af7a27, 0xf0a47188, 0xd24c3b7b, 0xf98ab299, 0x0d84b0b8, 0x98507e3c, 0x561d6472), SECP256K1_FE_CONST(0x144f4ccb, 0xd9a74698, 0xa88cbf6f, 0xd00ad886, 0xd339d29e, 0xa19448f2, 0xc572cac0, 0xa07d5562), {SECP256K1_FE_CONST(0xe6a0ffa3, 0x807f09da, 0xdbe71e0f, 0x4be4725f, 0x2832e76c, 0xad8dc1d9, 0x43ce8393, 0x75eff248), SECP256K1_FE_CONST(0x837b8e68, 0xd4917544, 0x764ad090, 0x3cb11f86, 0x15d2823c, 0xefbb06d8, 0x9049dbab, 0xc69befda), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x195f005c, 0x7f80f625, 0x2418e1f0, 0xb41b8da0, 0xd7cd1893, 0x52723e26, 0xbc317c6b, 0x8a1009e7), SECP256K1_FE_CONST(0x7c847197, 0x2b6e8abb, 0x89b52f6f, 0xc34ee079, 0xea2d7dc3, 0x1044f927, 0x6fb62453, 0x39640c55), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x00, SECP256K1_FE_CONST(0xb682f3d0, 0x3bbb5dee, 0x4f54b5eb, 0xfba931b4, 0xf52f6a19, 0x1e5c2f48, 0x3c73c66e, 0x9ace97e1), SECP256K1_FE_CONST(0x904717bf, 0x0bc0cb78, 0x73fcdc38, 0xaa97f19e, 0x3a626309, 0x72acff92, 0xb24cc6dd, 0xa197cb96), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x77, SECP256K1_FE_CONST(0xc17ec69e, 0x665f0fb0, 0xdbab48d9, 0xc2f94d12, 0xec8a9d7e, 0xacb58084, 0x83309180, 0x1eb0b80b), SECP256K1_FE_CONST(0x147756e6, 0x6d96e31c, 0x426d3cc8, 0x5ed0c4cf, 0xbef6341d, 0xd8b28558, 0x5aa574ea, 0x0204b55e), {SECP256K1_FE_CONST(0x6f4aea43, 0x1a0043bd, 0xd03134d6, 0xd9159119, 0xce034b88, 0xc32e50e8, 0xe36c4ee4, 0x5eac7ae9), SECP256K1_FE_CONST(0xfd5be16d, 0x4ffa2690, 0x126c67c3, 0xef7cb9d2, 0x9b74d397, 0xc78b06b3, 0x605fda34, 0xdc9696a6), SECP256K1_FE_CONST(0x5e9c6079, 0x2a2f000e, 0x45c6250f, 0x296f875e, 0x174efc0e, 0x9703e628, 0x706103a9, 0xdd2d82c7), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x90b515bc, 0xe5ffbc42, 0x2fcecb29, 0x26ea6ee6, 0x31fcb477, 0x3cd1af17, 0x1c93b11a, 0xa1538146), SECP256K1_FE_CONST(0x02a41e92, 0xb005d96f, 0xed93983c, 0x1083462d, 0x648b2c68, 0x3874f94c, 0x9fa025ca, 0x23696589), SECP256K1_FE_CONST(0xa1639f86, 0xd5d0fff1, 0xba39daf0, 0xd69078a1, 0xe8b103f1, 0x68fc19d7, 0x8f9efc55, 0x22d27968), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0xcc, SECP256K1_FE_CONST(0xc25172fc, 0x3f29b6fc, 0x4a1155b8, 0x57523315, 0x5486b274, 0x64b74b8b, 0x260b499a, 0x3f53cb14), SECP256K1_FE_CONST(0x1ea9cbdb, 0x35cf6e03, 0x29aa31b0, 0xbb0a702a, 0x65123ed0, 0x08655a93, 0xb7dcd528, 0x0e52e1ab), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x7422edc7, 0x843136af, 0x0053bb88, 0x54448a82, 0x99994f9d, 0xdcefd3a9, 0xa92d4546, 0x2c59298a), SECP256K1_FE_CONST(0x78c7774a, 0x266f8b97, 0xea23d05d, 0x064f033c, 0x77319f92, 0x3f6b78bc, 0xe4e20bf0, 0x5fa5398d), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x8bdd1238, 0x7bcec950, 0xffac4477, 0xabbb757d, 0x6666b062, 0x23102c56, 0x56d2bab8, 0xd3a6d2a5), SECP256K1_FE_CONST(0x873888b5, 0xd9907468, 0x15dc2fa2, 0xf9b0fcc3, 0x88ce606d, 0xc0948743, 0x1b1df40e, 0xa05ac2a2)}}, + {0x00, SECP256K1_FE_CONST(0xcab6626f, 0x832a4b12, 0x80ba7add, 0x2fc5322f, 0xf011caed, 0xedf7ff4d, 0xb6735d50, 0x26dc0367), SECP256K1_FE_CONST(0x2b2bef08, 0x52c6f7c9, 0x5d72ac99, 0xa23802b8, 0x75029cd5, 0x73b248d1, 0xf1b3fc80, 0x33788eb6), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x33, SECP256K1_FE_CONST(0xd8621b4f, 0xfc85b9ed, 0x56e99d8d, 0xd1dd24ae, 0xdcecb147, 0x63b861a1, 0x7112dc77, 0x1a104fd2), SECP256K1_FE_CONST(0x812cabe9, 0x72a22aa6, 0x7c7da0c9, 0x4d8a9362, 0x96eb9949, 0xd70c37cb, 0x2b248757, 0x4cb3ce58), {SECP256K1_FE_CONST(0xfbc5febc, 0x6fdbc9ae, 0x3eb88a93, 0xb982196e, 0x8b6275a6, 0xd5a73c17, 0x387e000c, 0x711bd0e3), SECP256K1_FE_CONST(0x8724c96b, 0xd4e5527f, 0x2dd195a5, 0x1c468d2d, 0x211ba2fa, 0xc7cbe0b4, 0xb3434253, 0x409fb42d), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x043a0143, 0x90243651, 0xc147756c, 0x467de691, 0x749d8a59, 0x2a58c3e8, 0xc781fff2, 0x8ee42b4c), SECP256K1_FE_CONST(0x78db3694, 0x2b1aad80, 0xd22e6a5a, 0xe3b972d2, 0xdee45d05, 0x38341f4b, 0x4cbcbdab, 0xbf604802), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x00, SECP256K1_FE_CONST(0xda463164, 0xc6f4bf71, 0x29ee5f0e, 0xc00f65a6, 0x75a8adf1, 0xbd931b39, 0xb64806af, 0xdcda9a22), SECP256K1_FE_CONST(0x25b9ce9b, 0x390b408e, 0xd611a0f1, 0x3ff09a59, 0x8a57520e, 0x426ce4c6, 0x49b7f94f, 0x2325620d), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0xcc, SECP256K1_FE_CONST(0xdafc971e, 0x4a3a7b6d, 0xcfb42a08, 0xd9692d82, 0xad9e7838, 0x523fcbda, 0x1d4827e1, 0x4481ae2d), SECP256K1_FE_CONST(0x250368e1, 0xb5c58492, 0x304bd5f7, 0x2696d27d, 0x526187c7, 0xadc03425, 0xe2b7d81d, 0xbb7e4e02), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x370c28f1, 0xbe665efa, 0xcde6aa43, 0x6bf86fe2, 0x1e6e314c, 0x1e53dd04, 0x0e6c73a4, 0x6b4c8c49), SECP256K1_FE_CONST(0xcd8acee9, 0x8ffe5653, 0x1a84d7eb, 0x3e48fa40, 0x34206ce8, 0x25ace907, 0xd0edf0ea, 0xeb5e9ca2), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xc8f3d70e, 0x4199a105, 0x321955bc, 0x9407901d, 0xe191ceb3, 0xe1ac22fb, 0xf1938c5a, 0x94b36fe6), SECP256K1_FE_CONST(0x32753116, 0x7001a9ac, 0xe57b2814, 0xc1b705bf, 0xcbdf9317, 0xda5316f8, 0x2f120f14, 0x14a15f8d)}}, + {0x44, SECP256K1_FE_CONST(0xe0294c8b, 0xc1a36b41, 0x66ee92bf, 0xa70a5c34, 0x976fa982, 0x9405efea, 0x8f9cd54d, 0xcb29b99e), SECP256K1_FE_CONST(0xae9690d1, 0x3b8d20a0, 0xfbbf37be, 0xd8474f67, 0xa04e142f, 0x56efd787, 0x70a76b35, 0x9165d8a1), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xdcd45d93, 0x5613916a, 0xf167b029, 0x058ba3a7, 0x00d37150, 0xb9df3472, 0x8cb05412, 0xc16d4182), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x232ba26c, 0xa9ec6e95, 0x0e984fd6, 0xfa745c58, 0xff2c8eaf, 0x4620cb8d, 0x734fabec, 0x3e92baad), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0x00, SECP256K1_FE_CONST(0xe148441c, 0xd7b92b8b, 0x0e4fa3bd, 0x68712cfd, 0x0d709ad1, 0x98cace61, 0x1493c10e, 0x97f5394e), SECP256K1_FE_CONST(0x164a6397, 0x94d74c53, 0xafc4d329, 0x4e79cdb3, 0xcd25f99f, 0x6df45c00, 0x0f758aba, 0x54d699c0), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0xff, SECP256K1_FE_CONST(0xe4b00ec9, 0x7aadcca9, 0x7644d3b0, 0xc8a931b1, 0x4ce7bcf7, 0xbc877954, 0x6d6e35aa, 0x5937381c), SECP256K1_FE_CONST(0x94e9588d, 0x41647b3f, 0xcc772dc8, 0xd83c67ce, 0x3be00353, 0x8517c834, 0x103d2cd4, 0x9d62ef4d), {SECP256K1_FE_CONST(0xc88d25f4, 0x1407376b, 0xb2c03a7f, 0xffeb3ec7, 0x811cc434, 0x91a0c3aa, 0xc0378cdc, 0x78357bee), SECP256K1_FE_CONST(0x51c02636, 0xce00c234, 0x5ecd89ad, 0xb6089fe4, 0xd5e18ac9, 0x24e3145e, 0x6669501c, 0xd37a00d4), SECP256K1_FE_CONST(0x205b3512, 0xdb40521c, 0xb200952e, 0x67b46f67, 0xe09e7839, 0xe0de4400, 0x4138329e, 0xbd9138c5), SECP256K1_FE_CONST(0x58aab390, 0xab6fb55c, 0x1d1b8089, 0x7a207ce9, 0x4a78fa5b, 0x4aa61a33, 0x398bcae9, 0xadb20d3e), SECP256K1_FE_CONST(0x3772da0b, 0xebf8c894, 0x4d3fc580, 0x0014c138, 0x7ee33bcb, 0x6e5f3c55, 0x3fc87322, 0x87ca8041), SECP256K1_FE_CONST(0xae3fd9c9, 0x31ff3dcb, 0xa1327652, 0x49f7601b, 0x2a1e7536, 0xdb1ceba1, 0x9996afe2, 0x2c85fb5b), SECP256K1_FE_CONST(0xdfa4caed, 0x24bfade3, 0x4dff6ad1, 0x984b9098, 0x1f6187c6, 0x1f21bbff, 0xbec7cd60, 0x426ec36a), SECP256K1_FE_CONST(0xa7554c6f, 0x54904aa3, 0xe2e47f76, 0x85df8316, 0xb58705a4, 0xb559e5cc, 0xc6743515, 0x524deef1)}}, + {0x00, SECP256K1_FE_CONST(0xe5bbb9ef, 0x360d0a50, 0x1618f006, 0x7d36dceb, 0x75f5be9a, 0x620232aa, 0x9fd5139d, 0x0863fde5), SECP256K1_FE_CONST(0xe5bbb9ef, 0x360d0a50, 0x1618f006, 0x7d36dceb, 0x75f5be9a, 0x620232aa, 0x9fd5139d, 0x0863fde5), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0xff, SECP256K1_FE_CONST(0xe6bcb5c3, 0xd63467d4, 0x90bfa54f, 0xbbc6092a, 0x7248c25e, 0x11b248dc, 0x2964a6e1, 0x5edb1457), SECP256K1_FE_CONST(0x19434a3c, 0x29cb982b, 0x6f405ab0, 0x4439f6d5, 0x8db73da1, 0xee4db723, 0xd69b591d, 0xa124e7d8), {SECP256K1_FE_CONST(0x67119877, 0x832ab8f4, 0x59a82165, 0x6d8261f5, 0x44a553b8, 0x9ae4f25c, 0x52a97134, 0xb70f3426), SECP256K1_FE_CONST(0xffee02f5, 0xe649c07f, 0x0560eff1, 0x867ec7b3, 0x2d0e595e, 0x9b1c0ea6, 0xe2a4fc70, 0xc97cd71f), SECP256K1_FE_CONST(0xb5e0c189, 0xeb5b4bac, 0xd025b744, 0x4d74178b, 0xe8d5246c, 0xfa4a9a20, 0x7964a057, 0xee969992), SECP256K1_FE_CONST(0x5746e459, 0x1bf7f4c3, 0x044609ea, 0x372e9086, 0x03975d27, 0x9fdef834, 0x9f0b08d3, 0x2f07619d), SECP256K1_FE_CONST(0x98ee6788, 0x7cd5470b, 0xa657de9a, 0x927d9e0a, 0xbb5aac47, 0x651b0da3, 0xad568eca, 0x48f0c809), SECP256K1_FE_CONST(0x0011fd0a, 0x19b63f80, 0xfa9f100e, 0x7981384c, 0xd2f1a6a1, 0x64e3f159, 0x1d5b038e, 0x36832510), SECP256K1_FE_CONST(0x4a1f3e76, 0x14a4b453, 0x2fda48bb, 0xb28be874, 0x172adb93, 0x05b565df, 0x869b5fa7, 0x1169629d), SECP256K1_FE_CONST(0xa8b91ba6, 0xe4080b3c, 0xfbb9f615, 0xc8d16f79, 0xfc68a2d8, 0x602107cb, 0x60f4f72b, 0xd0f89a92)}}, + {0x33, SECP256K1_FE_CONST(0xf28fba64, 0xaf766845, 0xeb2f4302, 0x456e2b9f, 0x8d80affe, 0x57e7aae4, 0x2738d7cd, 0xdb1c2ce6), SECP256K1_FE_CONST(0xf28fba64, 0xaf766845, 0xeb2f4302, 0x456e2b9f, 0x8d80affe, 0x57e7aae4, 0x2738d7cd, 0xdb1c2ce6), {SECP256K1_FE_CONST(0x4f867ad8, 0xbb3d8404, 0x09d26b67, 0x307e6210, 0x0153273f, 0x72fa4b74, 0x84becfa1, 0x4ebe7408), SECP256K1_FE_CONST(0x5bbc4f59, 0xe452cc5f, 0x22a99144, 0xb10ce898, 0x9a89a995, 0xec3cea1c, 0x91ae10e8, 0xf721bb5d), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xb0798527, 0x44c27bfb, 0xf62d9498, 0xcf819def, 0xfeacd8c0, 0x8d05b48b, 0x7b41305d, 0xb1418827), SECP256K1_FE_CONST(0xa443b0a6, 0x1bad33a0, 0xdd566ebb, 0x4ef31767, 0x6576566a, 0x13c315e3, 0x6e51ef16, 0x08de40d2), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, + {0xcc, SECP256K1_FE_CONST(0xf455605b, 0xc85bf48e, 0x3a908c31, 0x023faf98, 0x381504c6, 0xc6d3aeb9, 0xede55f8d, 0xd528924d), SECP256K1_FE_CONST(0xd31fbcd5, 0xcdb798f6, 0xc00db669, 0x2f8fe896, 0x7fa9c79d, 0xd10958f4, 0xa194f013, 0x74905e99), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0x0c00c571, 0x5b56fe63, 0x2d814ad8, 0xa77f8e66, 0x628ea47a, 0x6116834f, 0x8c1218f3, 0xa03cbd50), SECP256K1_FE_CONST(0xdf88e44f, 0xac84fa52, 0xdf4d59f4, 0x8819f18f, 0x6a8cd415, 0x1d162afa, 0xf773166f, 0x57c7ff46), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0xf3ff3a8e, 0xa4a9019c, 0xd27eb527, 0x58807199, 0x9d715b85, 0x9ee97cb0, 0x73ede70b, 0x5fc33edf), SECP256K1_FE_CONST(0x20771bb0, 0x537b05ad, 0x20b2a60b, 0x77e60e70, 0x95732bea, 0xe2e9d505, 0x088ce98f, 0xa837fce9)}}, + {0xff, SECP256K1_FE_CONST(0xf58cd4d9, 0x830bad32, 0x2699035e, 0x8246007d, 0x4be27e19, 0xb6f53621, 0x317b4f30, 0x9b3daa9d), SECP256K1_FE_CONST(0x78ec2b3d, 0xc0948de5, 0x60148bbc, 0x7c6dc963, 0x3ad5df70, 0xa5a5750c, 0xbed72180, 0x4f082a3b), {SECP256K1_FE_CONST(0x6c4c580b, 0x76c75940, 0x43569f9d, 0xae16dc28, 0x01c16a1f, 0xbe128608, 0x81b75f8e, 0xf929bce5), SECP256K1_FE_CONST(0x94231355, 0xe7385c5f, 0x25ca436a, 0xa6419147, 0x1aea4393, 0xd6e86ab7, 0xa35fe2af, 0xacaefd0d), SECP256K1_FE_CONST(0xdff2a195, 0x1ada6db5, 0x74df8340, 0x48149da3, 0x397a75b8, 0x29abf58c, 0x7e69db1b, 0x41ac0989), SECP256K1_FE_CONST(0xa52b66d3, 0xc9070355, 0x48028bf8, 0x04711bf4, 0x22aba95f, 0x1a666fc8, 0x6f4648e0, 0x5f29caae), SECP256K1_FE_CONST(0x93b3a7f4, 0x8938a6bf, 0xbca96062, 0x51e923d7, 0xfe3e95e0, 0x41ed79f7, 0x7e48a070, 0x06d63f4a), SECP256K1_FE_CONST(0x6bdcecaa, 0x18c7a3a0, 0xda35bc95, 0x59be6eb8, 0xe515bc6c, 0x29179548, 0x5ca01d4f, 0x5350ff22), SECP256K1_FE_CONST(0x200d5e6a, 0xe525924a, 0x8b207cbf, 0xb7eb625c, 0xc6858a47, 0xd6540a73, 0x819624e3, 0xbe53f2a6), SECP256K1_FE_CONST(0x5ad4992c, 0x36f8fcaa, 0xb7fd7407, 0xfb8ee40b, 0xdd5456a0, 0xe5999037, 0x90b9b71e, 0xa0d63181)}}, + {0x00, SECP256K1_FE_CONST(0xfd7d912a, 0x40f182a3, 0x588800d6, 0x9ebfb504, 0x8766da20, 0x6fd7ebc8, 0xd2436c81, 0xcbef6421), SECP256K1_FE_CONST(0x8d37c862, 0x054debe7, 0x31694536, 0xff46b273, 0xec122b35, 0xa9bf1445, 0xac3c4ff9, 0xf262c952), {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0)}}, +}; + +/* Set of (encoding, xcoord) test vectors, selected to maximize branch coverage, part of the BIP324 + * test vectors. Created using an independent implementation, and tested decoding against the paper + * authors' code. */ +static const struct ellswift_decode_test ellswift_decode_tests[] = { + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0xedd1fd3e, 0x327ce90c, 0xc7a35426, 0x14289aee, 0x9682003e, 0x9cf7dcc9, 0xcf2ca974, 0x3be5aa0c), 0}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xd3, 0x47, 0x5b, 0xf7, 0x65, 0x5b, 0x0f, 0xb2, 0xd8, 0x52, 0x92, 0x10, 0x35, 0xb2, 0xef, 0x60, 0x7f, 0x49, 0x06, 0x9b, 0x97, 0x45, 0x4e, 0x67, 0x95, 0x25, 0x10, 0x62, 0x74, 0x17, 0x71}, SECP256K1_FE_CONST(0xb5da00b7, 0x3cd65605, 0x20e7c364, 0x086e7cd2, 0x3a34bf60, 0xd0e707be, 0x9fc34d4c, 0xd5fdfa2c), 1}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x82, 0x27, 0x7c, 0x4a, 0x71, 0xf9, 0xd2, 0x2e, 0x66, 0xec, 0xe5, 0x23, 0xf8, 0xfa, 0x08, 0x74, 0x1a, 0x7c, 0x09, 0x12, 0xc6, 0x6a, 0x69, 0xce, 0x68, 0x51, 0x4b, 0xfd, 0x35, 0x15, 0xb4, 0x9f}, SECP256K1_FE_CONST(0xf482f2e2, 0x41753ad0, 0xfb89150d, 0x8491dc1e, 0x34ff0b8a, 0xcfbb442c, 0xfe999e2e, 0x5e6fd1d2), 1}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x84, 0x21, 0xcc, 0x93, 0x0e, 0x77, 0xc9, 0xf5, 0x14, 0xb6, 0x91, 0x5c, 0x3d, 0xbe, 0x2a, 0x94, 0xc6, 0xd8, 0xf6, 0x90, 0xb5, 0xb7, 0x39, 0x86, 0x4b, 0xa6, 0x78, 0x9f, 0xb8, 0xa5, 0x5d, 0xd0}, SECP256K1_FE_CONST(0x9f59c402, 0x75f5085a, 0x006f05da, 0xe77eb98c, 0x6fd0db1a, 0xb4a72ac4, 0x7eae90a4, 0xfc9e57e0), 0}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbd, 0xe7, 0x0d, 0xf5, 0x19, 0x39, 0xb9, 0x4c, 0x9c, 0x24, 0x97, 0x9f, 0xa7, 0xdd, 0x04, 0xeb, 0xd9, 0xb3, 0x57, 0x2d, 0xa7, 0x80, 0x22, 0x90, 0x43, 0x8a, 0xf2, 0xa6, 0x81, 0x89, 0x54, 0x41}, SECP256K1_FE_CONST(0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaa9, 0xfffffd6b), 1}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd1, 0x9c, 0x18, 0x2d, 0x27, 0x59, 0xcd, 0x99, 0x82, 0x42, 0x28, 0xd9, 0x47, 0x99, 0xf8, 0xc6, 0x55, 0x7c, 0x38, 0xa1, 0xc0, 0xd6, 0x77, 0x9b, 0x9d, 0x4b, 0x72, 0x9c, 0x6f, 0x1c, 0xcc, 0x42}, SECP256K1_FE_CONST(0x70720db7, 0xe238d041, 0x21f5b1af, 0xd8cc5ad9, 0xd18944c6, 0xbdc94881, 0xf502b7a3, 0xaf3aecff), 0}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0xedd1fd3e, 0x327ce90c, 0xc7a35426, 0x14289aee, 0x9682003e, 0x9cf7dcc9, 0xcf2ca974, 0x3be5aa0c), 0}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x26, 0x64, 0xbb, 0xd5}, SECP256K1_FE_CONST(0x50873db3, 0x1badcc71, 0x890e4f67, 0x753a6575, 0x7f97aaa7, 0xdd5f1e82, 0xb753ace3, 0x2219064b), 0}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x70, 0x28, 0xde, 0x7d}, SECP256K1_FE_CONST(0x1eea9cc5, 0x9cfcf2fa, 0x151ac6c2, 0x74eea411, 0x0feb4f7b, 0x68c59657, 0x32e9992e, 0x976ef68e), 0}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xcb, 0xcf, 0xb7, 0xe7}, SECP256K1_FE_CONST(0x12303941, 0xaedc2088, 0x80735b1f, 0x1795c8e5, 0x5be520ea, 0x93e10335, 0x7b5d2adb, 0x7ed59b8e), 0}, + {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf3, 0x11, 0x3a, 0xd9}, SECP256K1_FE_CONST(0x7eed6b70, 0xe7b0767c, 0x7d7feac0, 0x4e57aa2a, 0x12fef5e0, 0xf48f878f, 0xcbb88b3b, 0x6b5e0783), 0}, + {{0x0a, 0x2d, 0x2b, 0xa9, 0x35, 0x07, 0xf1, 0xdf, 0x23, 0x37, 0x70, 0xc2, 0xa7, 0x97, 0x96, 0x2c, 0xc6, 0x1f, 0x6d, 0x15, 0xda, 0x14, 0xec, 0xd4, 0x7d, 0x8d, 0x27, 0xae, 0x1c, 0xd5, 0xf8, 0x53, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x532167c1, 0x1200b08c, 0x0e84a354, 0xe74dcc40, 0xf8b25f4f, 0xe686e308, 0x69526366, 0x278a0688), 0}, + {{0x0a, 0x2d, 0x2b, 0xa9, 0x35, 0x07, 0xf1, 0xdf, 0x23, 0x37, 0x70, 0xc2, 0xa7, 0x97, 0x96, 0x2c, 0xc6, 0x1f, 0x6d, 0x15, 0xda, 0x14, 0xec, 0xd4, 0x7d, 0x8d, 0x27, 0xae, 0x1c, 0xd5, 0xf8, 0x53, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x532167c1, 0x1200b08c, 0x0e84a354, 0xe74dcc40, 0xf8b25f4f, 0xe686e308, 0x69526366, 0x278a0688), 0}, + {{0x0f, 0xfd, 0xe9, 0xca, 0x81, 0xd7, 0x51, 0xe9, 0xcd, 0xaf, 0xfc, 0x1a, 0x50, 0x77, 0x92, 0x45, 0x32, 0x0b, 0x28, 0x99, 0x6d, 0xba, 0xf3, 0x2f, 0x82, 0x2f, 0x20, 0x11, 0x7c, 0x22, 0xfb, 0xd6, 0xc7, 0x4d, 0x99, 0xef, 0xce, 0xaa, 0x55, 0x0f, 0x1a, 0xd1, 0xc0, 0xf4, 0x3f, 0x46, 0xe7, 0xff, 0x1e, 0xe3, 0xbd, 0x01, 0x62, 0xb7, 0xbf, 0x55, 0xf2, 0x96, 0x5d, 0xa9, 0xc3, 0x45, 0x06, 0x46}, SECP256K1_FE_CONST(0x74e880b3, 0xffd18fe3, 0xcddf7902, 0x522551dd, 0xf97fa4a3, 0x5a3cfda8, 0x197f9470, 0x81a57b8f), 0}, + {{0x0f, 0xfd, 0xe9, 0xca, 0x81, 0xd7, 0x51, 0xe9, 0xcd, 0xaf, 0xfc, 0x1a, 0x50, 0x77, 0x92, 0x45, 0x32, 0x0b, 0x28, 0x99, 0x6d, 0xba, 0xf3, 0x2f, 0x82, 0x2f, 0x20, 0x11, 0x7c, 0x22, 0xfb, 0xd6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x15, 0x6c, 0xa8, 0x96}, SECP256K1_FE_CONST(0x377b643f, 0xce2271f6, 0x4e5c8101, 0x566107c1, 0xbe498074, 0x50917838, 0x04f65478, 0x1ac9217c), 1}, + {{0x12, 0x36, 0x58, 0x44, 0x4f, 0x32, 0xbe, 0x8f, 0x02, 0xea, 0x20, 0x34, 0xaf, 0xa7, 0xef, 0x4b, 0xbe, 0x8a, 0xdc, 0x91, 0x8c, 0xeb, 0x49, 0xb1, 0x27, 0x73, 0xb6, 0x25, 0xf4, 0x90, 0xb3, 0x68, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x8d, 0xc5, 0xfe, 0x11}, SECP256K1_FE_CONST(0xed16d65c, 0xf3a9538f, 0xcb2c139f, 0x1ecbc143, 0xee148271, 0x20cbc265, 0x9e667256, 0x800b8142), 0}, + {{0x14, 0x6f, 0x92, 0x46, 0x4d, 0x15, 0xd3, 0x6e, 0x35, 0x38, 0x2b, 0xd3, 0xca, 0x5b, 0x0f, 0x97, 0x6c, 0x95, 0xcb, 0x08, 0xac, 0xdc, 0xf2, 0xd5, 0xb3, 0x57, 0x06, 0x17, 0x99, 0x08, 0x39, 0xd7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x31, 0x45, 0xe9, 0x3b}, SECP256K1_FE_CONST(0x0d5cd840, 0x427f941f, 0x65193079, 0xab8e2e83, 0x024ef2ee, 0x7ca558d8, 0x8879ffd8, 0x79fb6657), 0}, + {{0x15, 0xfd, 0xf5, 0xcf, 0x09, 0xc9, 0x07, 0x59, 0xad, 0xd2, 0x27, 0x2d, 0x57, 0x4d, 0x2b, 0xb5, 0xfe, 0x14, 0x29, 0xf9, 0xf3, 0xc1, 0x4c, 0x65, 0xe3, 0x19, 0x4b, 0xf6, 0x1b, 0x82, 0xaa, 0x73, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x04, 0xcf, 0xd9, 0x06}, SECP256K1_FE_CONST(0x16d0e439, 0x46aec93f, 0x62d57eb8, 0xcde68951, 0xaf136cf4, 0xb307938d, 0xd1447411, 0xe07bffe1), 1}, + {{0x1f, 0x67, 0xed, 0xf7, 0x79, 0xa8, 0xa6, 0x49, 0xd6, 0xde, 0xf6, 0x00, 0x35, 0xf2, 0xfa, 0x22, 0xd0, 0x22, 0xdd, 0x35, 0x90, 0x79, 0xa1, 0xa1, 0x44, 0x07, 0x3d, 0x84, 0xf1, 0x9b, 0x92, 0xd5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x025661f9, 0xaba9d15c, 0x3118456b, 0xbe980e3e, 0x1b8ba2e0, 0x47c737a4, 0xeb48a040, 0xbb566f6c), 0}, + {{0x1f, 0x67, 0xed, 0xf7, 0x79, 0xa8, 0xa6, 0x49, 0xd6, 0xde, 0xf6, 0x00, 0x35, 0xf2, 0xfa, 0x22, 0xd0, 0x22, 0xdd, 0x35, 0x90, 0x79, 0xa1, 0xa1, 0x44, 0x07, 0x3d, 0x84, 0xf1, 0x9b, 0x92, 0xd5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x025661f9, 0xaba9d15c, 0x3118456b, 0xbe980e3e, 0x1b8ba2e0, 0x47c737a4, 0xeb48a040, 0xbb566f6c), 0}, + {{0x1f, 0xe1, 0xe5, 0xef, 0x3f, 0xce, 0xb5, 0xc1, 0x35, 0xab, 0x77, 0x41, 0x33, 0x3c, 0xe5, 0xa6, 0xe8, 0x0d, 0x68, 0x16, 0x76, 0x53, 0xf6, 0xb2, 0xb2, 0x4b, 0xcb, 0xcf, 0xaa, 0xaf, 0xf5, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x98bec3b2, 0xa351fa96, 0xcfd191c1, 0x77835193, 0x1b9e9ba9, 0xad1149f6, 0xd9eadca8, 0x0981b801), 0}, + {{0x40, 0x56, 0xa3, 0x4a, 0x21, 0x0e, 0xec, 0x78, 0x92, 0xe8, 0x82, 0x06, 0x75, 0xc8, 0x60, 0x09, 0x9f, 0x85, 0x7b, 0x26, 0xaa, 0xd8, 0x54, 0x70, 0xee, 0x6d, 0x3c, 0xf1, 0x30, 0x4a, 0x9d, 0xcf, 0x37, 0x5e, 0x70, 0x37, 0x42, 0x71, 0xf2, 0x0b, 0x13, 0xc9, 0x98, 0x6e, 0xd7, 0xd3, 0xc1, 0x77, 0x99, 0x69, 0x8c, 0xfc, 0x43, 0x5d, 0xbe, 0xd3, 0xa9, 0xf3, 0x4b, 0x38, 0xc8, 0x23, 0xc2, 0xb4}, SECP256K1_FE_CONST(0x868aac20, 0x03b29dbc, 0xad1a3e80, 0x3855e078, 0xa89d1654, 0x3ac64392, 0xd1224172, 0x98cec76e), 0}, + {{0x41, 0x97, 0xec, 0x37, 0x23, 0xc6, 0x54, 0xcf, 0xdd, 0x32, 0xab, 0x07, 0x55, 0x06, 0x64, 0x8b, 0x2f, 0xf5, 0x07, 0x03, 0x62, 0xd0, 0x1a, 0x4f, 0xff, 0x14, 0xb3, 0x36, 0xb7, 0x8f, 0x96, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb3, 0xab, 0x1e, 0x95}, SECP256K1_FE_CONST(0xba5a6314, 0x502a8952, 0xb8f456e0, 0x85928105, 0xf665377a, 0x8ce27726, 0xa5b0eb7e, 0xc1ac0286), 0}, + {{0x47, 0xeb, 0x3e, 0x20, 0x8f, 0xed, 0xcd, 0xf8, 0x23, 0x4c, 0x94, 0x21, 0xe9, 0xcd, 0x9a, 0x7a, 0xe8, 0x73, 0xbf, 0xbd, 0xbc, 0x39, 0x37, 0x23, 0xd1, 0xba, 0x1e, 0x1e, 0x6a, 0x8e, 0x6b, 0x24, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7c, 0xd1, 0x2c, 0xb1}, SECP256K1_FE_CONST(0xd192d520, 0x07e541c9, 0x807006ed, 0x0468df77, 0xfd214af0, 0xa795fe11, 0x9359666f, 0xdcf08f7c), 0}, + {{0x5e, 0xb9, 0x69, 0x6a, 0x23, 0x36, 0xfe, 0x2c, 0x3c, 0x66, 0x6b, 0x02, 0xc7, 0x55, 0xdb, 0x4c, 0x0c, 0xfd, 0x62, 0x82, 0x5c, 0x7b, 0x58, 0x9a, 0x7b, 0x7b, 0xb4, 0x42, 0xe1, 0x41, 0xc1, 0xd6, 0x93, 0x41, 0x3f, 0x00, 0x52, 0xd4, 0x9e, 0x64, 0xab, 0xec, 0x6d, 0x58, 0x31, 0xd6, 0x6c, 0x43, 0x61, 0x28, 0x30, 0xa1, 0x7d, 0xf1, 0xfe, 0x43, 0x83, 0xdb, 0x89, 0x64, 0x68, 0x10, 0x02, 0x21}, SECP256K1_FE_CONST(0xef6e1da6, 0xd6c7627e, 0x80f7a723, 0x4cb08a02, 0x2c1ee1cf, 0x29e4d0f9, 0x642ae924, 0xcef9eb38), 1}, + {{0x7b, 0xf9, 0x6b, 0x7b, 0x6d, 0xa1, 0x5d, 0x34, 0x76, 0xa2, 0xb1, 0x95, 0x93, 0x4b, 0x69, 0x0a, 0x3a, 0x3d, 0xe3, 0xe8, 0xab, 0x84, 0x74, 0x85, 0x68, 0x63, 0xb0, 0xde, 0x3a, 0xf9, 0x0b, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x50851dfc, 0x9f418c31, 0x4a437295, 0xb24feeea, 0x27af3d0c, 0xd2308348, 0xfda6e21c, 0x463e46ff), 0}, + {{0x7b, 0xf9, 0x6b, 0x7b, 0x6d, 0xa1, 0x5d, 0x34, 0x76, 0xa2, 0xb1, 0x95, 0x93, 0x4b, 0x69, 0x0a, 0x3a, 0x3d, 0xe3, 0xe8, 0xab, 0x84, 0x74, 0x85, 0x68, 0x63, 0xb0, 0xde, 0x3a, 0xf9, 0x0b, 0x0e, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x50851dfc, 0x9f418c31, 0x4a437295, 0xb24feeea, 0x27af3d0c, 0xd2308348, 0xfda6e21c, 0x463e46ff), 0}, + {{0x85, 0x1b, 0x1c, 0xa9, 0x45, 0x49, 0x37, 0x1c, 0x4f, 0x1f, 0x71, 0x87, 0x32, 0x1d, 0x39, 0xbf, 0x51, 0xc6, 0xb7, 0xfb, 0x61, 0xf7, 0xcb, 0xf0, 0x27, 0xc9, 0xda, 0x62, 0x02, 0x1b, 0x7a, 0x65, 0xfc, 0x54, 0xc9, 0x68, 0x37, 0xfb, 0x22, 0xb3, 0x62, 0xed, 0xa6, 0x3e, 0xc5, 0x2e, 0xc8, 0x3d, 0x81, 0xbe, 0xdd, 0x16, 0x0c, 0x11, 0xb2, 0x2d, 0x96, 0x5d, 0x9f, 0x4a, 0x6d, 0x64, 0xd2, 0x51}, SECP256K1_FE_CONST(0x3e731051, 0xe12d3323, 0x7eb324f2, 0xaa5b16bb, 0x868eb49a, 0x1aa1fadc, 0x19b6e876, 0x1b5a5f7b), 1}, + {{0x94, 0x3c, 0x2f, 0x77, 0x51, 0x08, 0xb7, 0x37, 0xfe, 0x65, 0xa9, 0x53, 0x1e, 0x19, 0xf2, 0xfc, 0x2a, 0x19, 0x7f, 0x56, 0x03, 0xe3, 0xa2, 0x88, 0x1d, 0x1d, 0x83, 0xe4, 0x00, 0x8f, 0x91, 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x311c61f0, 0xab2f32b7, 0xb1f0223f, 0xa72f0a78, 0x752b8146, 0xe46107f8, 0x876dd9c4, 0xf92b2942), 0}, + {{0x94, 0x3c, 0x2f, 0x77, 0x51, 0x08, 0xb7, 0x37, 0xfe, 0x65, 0xa9, 0x53, 0x1e, 0x19, 0xf2, 0xfc, 0x2a, 0x19, 0x7f, 0x56, 0x03, 0xe3, 0xa2, 0x88, 0x1d, 0x1d, 0x83, 0xe4, 0x00, 0x8f, 0x91, 0x25, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x311c61f0, 0xab2f32b7, 0xb1f0223f, 0xa72f0a78, 0x752b8146, 0xe46107f8, 0x876dd9c4, 0xf92b2942), 0}, + {{0xa0, 0xf1, 0x84, 0x92, 0x18, 0x3e, 0x61, 0xe8, 0x06, 0x3e, 0x57, 0x36, 0x06, 0x59, 0x14, 0x21, 0xb0, 0x6b, 0xc3, 0x51, 0x36, 0x31, 0x57, 0x8a, 0x73, 0xa3, 0x9c, 0x1c, 0x33, 0x06, 0x23, 0x9f, 0x2f, 0x32, 0x90, 0x4f, 0x0d, 0x2a, 0x33, 0xec, 0xca, 0x8a, 0x54, 0x51, 0x70, 0x5b, 0xb5, 0x37, 0xd3, 0xbf, 0x44, 0xe0, 0x71, 0x22, 0x60, 0x25, 0xcd, 0xbf, 0xd2, 0x49, 0xfe, 0x0f, 0x7a, 0xd6}, SECP256K1_FE_CONST(0x97a09cf1, 0xa2eae7c4, 0x94df3c6f, 0x8a9445bf, 0xb8c09d60, 0x832f9b0b, 0x9d5eabe2, 0x5fbd14b9), 0}, + {{0xa1, 0xed, 0x0a, 0x0b, 0xd7, 0x9d, 0x8a, 0x23, 0xcf, 0xe4, 0xec, 0x5f, 0xef, 0x5b, 0xa5, 0xcc, 0xcf, 0xd8, 0x44, 0xe4, 0xff, 0x5c, 0xb4, 0xb0, 0xf2, 0xe7, 0x16, 0x27, 0x34, 0x1f, 0x1c, 0x5b, 0x17, 0xc4, 0x99, 0x24, 0x9e, 0x0a, 0xc0, 0x8d, 0x5d, 0x11, 0xea, 0x1c, 0x2c, 0x8c, 0xa7, 0x00, 0x16, 0x16, 0x55, 0x9a, 0x79, 0x94, 0xea, 0xde, 0xc9, 0xca, 0x10, 0xfb, 0x4b, 0x85, 0x16, 0xdc}, SECP256K1_FE_CONST(0x65a89640, 0x744192cd, 0xac64b2d2, 0x1ddf989c, 0xdac75007, 0x25b645be, 0xf8e2200a, 0xe39691f2), 0}, + {{0xba, 0x94, 0x59, 0x4a, 0x43, 0x27, 0x21, 0xaa, 0x35, 0x80, 0xb8, 0x4c, 0x16, 0x1d, 0x0d, 0x13, 0x4b, 0xc3, 0x54, 0xb6, 0x90, 0x40, 0x4d, 0x7c, 0xd4, 0xec, 0x57, 0xc1, 0x6d, 0x3f, 0xbe, 0x98, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xea, 0x50, 0x7d, 0xd7}, SECP256K1_FE_CONST(0x5e0d7656, 0x4aae92cb, 0x347e01a6, 0x2afd389a, 0x9aa401c7, 0x6c8dd227, 0x543dc9cd, 0x0efe685a), 0}, + {{0xbc, 0xaf, 0x72, 0x19, 0xf2, 0xf6, 0xfb, 0xf5, 0x5f, 0xe5, 0xe0, 0x62, 0xdc, 0xe0, 0xe4, 0x8c, 0x18, 0xf6, 0x81, 0x03, 0xf1, 0x0b, 0x81, 0x98, 0xe9, 0x74, 0xc1, 0x84, 0x75, 0x0e, 0x1b, 0xe3, 0x93, 0x20, 0x16, 0xcb, 0xf6, 0x9c, 0x44, 0x71, 0xbd, 0x1f, 0x65, 0x6c, 0x6a, 0x10, 0x7f, 0x19, 0x73, 0xde, 0x4a, 0xf7, 0x08, 0x6d, 0xb8, 0x97, 0x27, 0x70, 0x60, 0xe2, 0x56, 0x77, 0xf1, 0x9a}, SECP256K1_FE_CONST(0x2d97f96c, 0xac882dfe, 0x73dc44db, 0x6ce0f1d3, 0x1d624135, 0x8dd5d74e, 0xb3d3b500, 0x03d24c2b), 0}, + {{0xbc, 0xaf, 0x72, 0x19, 0xf2, 0xf6, 0xfb, 0xf5, 0x5f, 0xe5, 0xe0, 0x62, 0xdc, 0xe0, 0xe4, 0x8c, 0x18, 0xf6, 0x81, 0x03, 0xf1, 0x0b, 0x81, 0x98, 0xe9, 0x74, 0xc1, 0x84, 0x75, 0x0e, 0x1b, 0xe3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x65, 0x07, 0xd0, 0x9a}, SECP256K1_FE_CONST(0xe7008afe, 0x6e8cbd50, 0x55df120b, 0xd748757c, 0x686dadb4, 0x1cce75e4, 0xaddcc5e0, 0x2ec02b44), 1}, + {{0xc5, 0x98, 0x1b, 0xae, 0x27, 0xfd, 0x84, 0x40, 0x1c, 0x72, 0xa1, 0x55, 0xe5, 0x70, 0x7f, 0xbb, 0x81, 0x1b, 0x2b, 0x62, 0x06, 0x45, 0xd1, 0x02, 0x8e, 0xa2, 0x70, 0xcb, 0xe0, 0xee, 0x22, 0x5d, 0x4b, 0x62, 0xaa, 0x4d, 0xca, 0x65, 0x06, 0xc1, 0xac, 0xdb, 0xec, 0xc0, 0x55, 0x25, 0x69, 0xb4, 0xb2, 0x14, 0x36, 0xa5, 0x69, 0x2e, 0x25, 0xd9, 0x0d, 0x3b, 0xc2, 0xeb, 0x7c, 0xe2, 0x40, 0x78}, SECP256K1_FE_CONST(0x948b40e7, 0x181713bc, 0x018ec170, 0x2d3d054d, 0x15746c59, 0xa7020730, 0xdd13ecf9, 0x85a010d7), 0}, + {{0xc8, 0x94, 0xce, 0x48, 0xbf, 0xec, 0x43, 0x30, 0x14, 0xb9, 0x31, 0xa6, 0xad, 0x42, 0x26, 0xd7, 0xdb, 0xd8, 0xea, 0xa7, 0xb6, 0xe3, 0xfa, 0xa8, 0xd0, 0xef, 0x94, 0x05, 0x2b, 0xcf, 0x8c, 0xff, 0x33, 0x6e, 0xeb, 0x39, 0x19, 0xe2, 0xb4, 0xef, 0xb7, 0x46, 0xc7, 0xf7, 0x1b, 0xbc, 0xa7, 0xe9, 0x38, 0x32, 0x30, 0xfb, 0xbc, 0x48, 0xff, 0xaf, 0xe7, 0x7e, 0x8b, 0xcc, 0x69, 0x54, 0x24, 0x71}, SECP256K1_FE_CONST(0xf1c91acd, 0xc2525330, 0xf9b53158, 0x434a4d43, 0xa1c547cf, 0xf29f1550, 0x6f5da4eb, 0x4fe8fa5a), 1}, + {{0xcb, 0xb0, 0xde, 0xab, 0x12, 0x57, 0x54, 0xf1, 0xfd, 0xb2, 0x03, 0x8b, 0x04, 0x34, 0xed, 0x9c, 0xb3, 0xfb, 0x53, 0xab, 0x73, 0x53, 0x91, 0x12, 0x99, 0x94, 0xa5, 0x35, 0xd9, 0x25, 0xf6, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x872d81ed, 0x8831d999, 0x8b67cb71, 0x05243edb, 0xf86c10ed, 0xfebb786c, 0x110b02d0, 0x7b2e67cd), 0}, + {{0xd9, 0x17, 0xb7, 0x86, 0xda, 0xc3, 0x56, 0x70, 0xc3, 0x30, 0xc9, 0xc5, 0xae, 0x59, 0x71, 0xdf, 0xb4, 0x95, 0xc8, 0xae, 0x52, 0x3e, 0xd9, 0x7e, 0xe2, 0x42, 0x01, 0x17, 0xb1, 0x71, 0xf4, 0x1e, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x20, 0x01, 0xf6, 0xf6}, SECP256K1_FE_CONST(0xe45b71e1, 0x10b831f2, 0xbdad8651, 0x994526e5, 0x8393fde4, 0x328b1ec0, 0x4d598971, 0x42584691), 1}, + {{0xe2, 0x8b, 0xd8, 0xf5, 0x92, 0x9b, 0x46, 0x7e, 0xb7, 0x0e, 0x04, 0x33, 0x23, 0x74, 0xff, 0xb7, 0xe7, 0x18, 0x02, 0x18, 0xad, 0x16, 0xea, 0xa4, 0x6b, 0x71, 0x61, 0xaa, 0x67, 0x9e, 0xb4, 0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x66b8c980, 0xa75c72e5, 0x98d383a3, 0x5a62879f, 0x844242ad, 0x1e73ff12, 0xedaa59f4, 0xe58632b5), 0}, + {{0xe2, 0x8b, 0xd8, 0xf5, 0x92, 0x9b, 0x46, 0x7e, 0xb7, 0x0e, 0x04, 0x33, 0x23, 0x74, 0xff, 0xb7, 0xe7, 0x18, 0x02, 0x18, 0xad, 0x16, 0xea, 0xa4, 0x6b, 0x71, 0x61, 0xaa, 0x67, 0x9e, 0xb4, 0x26, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x66b8c980, 0xa75c72e5, 0x98d383a3, 0x5a62879f, 0x844242ad, 0x1e73ff12, 0xedaa59f4, 0xe58632b5), 0}, + {{0xe7, 0xee, 0x58, 0x14, 0xc1, 0x70, 0x6b, 0xf8, 0xa8, 0x93, 0x96, 0xa9, 0xb0, 0x32, 0xbc, 0x01, 0x4c, 0x2c, 0xac, 0x9c, 0x12, 0x11, 0x27, 0xdb, 0xf6, 0xc9, 0x92, 0x78, 0xf8, 0xbb, 0x53, 0xd1, 0xdf, 0xd0, 0x4d, 0xbc, 0xda, 0x8e, 0x35, 0x24, 0x66, 0xb6, 0xfc, 0xd5, 0xf2, 0xde, 0xa3, 0xe1, 0x7d, 0x5e, 0x13, 0x31, 0x15, 0x88, 0x6e, 0xda, 0x20, 0xdb, 0x8a, 0x12, 0xb5, 0x4d, 0xe7, 0x1b}, SECP256K1_FE_CONST(0xe842c6e3, 0x529b2342, 0x70a5e977, 0x44edc34a, 0x04d7ba94, 0xe44b6d25, 0x23c9cf01, 0x95730a50), 1}, + {{0xf2, 0x92, 0xe4, 0x68, 0x25, 0xf9, 0x22, 0x5a, 0xd2, 0x3d, 0xc0, 0x57, 0xc1, 0xd9, 0x1c, 0x4f, 0x57, 0xfc, 0xb1, 0x38, 0x6f, 0x29, 0xef, 0x10, 0x48, 0x1c, 0xb1, 0xd2, 0x25, 0x18, 0x59, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x70, 0x11, 0xc9, 0x89}, SECP256K1_FE_CONST(0x3cea2c53, 0xb8b01701, 0x66ac7da6, 0x7194694a, 0xdacc84d5, 0x6389225e, 0x330134da, 0xb85a4d55), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0xedd1fd3e, 0x327ce90c, 0xc7a35426, 0x14289aee, 0x9682003e, 0x9cf7dcc9, 0xcf2ca974, 0x3be5aa0c), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x01, 0xd3, 0x47, 0x5b, 0xf7, 0x65, 0x5b, 0x0f, 0xb2, 0xd8, 0x52, 0x92, 0x10, 0x35, 0xb2, 0xef, 0x60, 0x7f, 0x49, 0x06, 0x9b, 0x97, 0x45, 0x4e, 0x67, 0x95, 0x25, 0x10, 0x62, 0x74, 0x17, 0x71}, SECP256K1_FE_CONST(0xb5da00b7, 0x3cd65605, 0x20e7c364, 0x086e7cd2, 0x3a34bf60, 0xd0e707be, 0x9fc34d4c, 0xd5fdfa2c), 1}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x42, 0x18, 0xf2, 0x0a, 0xe6, 0xc6, 0x46, 0xb3, 0x63, 0xdb, 0x68, 0x60, 0x58, 0x22, 0xfb, 0x14, 0x26, 0x4c, 0xa8, 0xd2, 0x58, 0x7f, 0xdd, 0x6f, 0xbc, 0x75, 0x0d, 0x58, 0x7e, 0x76, 0xa7, 0xee}, SECP256K1_FE_CONST(0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaa9, 0xfffffd6b), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x82, 0x27, 0x7c, 0x4a, 0x71, 0xf9, 0xd2, 0x2e, 0x66, 0xec, 0xe5, 0x23, 0xf8, 0xfa, 0x08, 0x74, 0x1a, 0x7c, 0x09, 0x12, 0xc6, 0x6a, 0x69, 0xce, 0x68, 0x51, 0x4b, 0xfd, 0x35, 0x15, 0xb4, 0x9f}, SECP256K1_FE_CONST(0xf482f2e2, 0x41753ad0, 0xfb89150d, 0x8491dc1e, 0x34ff0b8a, 0xcfbb442c, 0xfe999e2e, 0x5e6fd1d2), 1}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x84, 0x21, 0xcc, 0x93, 0x0e, 0x77, 0xc9, 0xf5, 0x14, 0xb6, 0x91, 0x5c, 0x3d, 0xbe, 0x2a, 0x94, 0xc6, 0xd8, 0xf6, 0x90, 0xb5, 0xb7, 0x39, 0x86, 0x4b, 0xa6, 0x78, 0x9f, 0xb8, 0xa5, 0x5d, 0xd0}, SECP256K1_FE_CONST(0x9f59c402, 0x75f5085a, 0x006f05da, 0xe77eb98c, 0x6fd0db1a, 0xb4a72ac4, 0x7eae90a4, 0xfc9e57e0), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0xd1, 0x9c, 0x18, 0x2d, 0x27, 0x59, 0xcd, 0x99, 0x82, 0x42, 0x28, 0xd9, 0x47, 0x99, 0xf8, 0xc6, 0x55, 0x7c, 0x38, 0xa1, 0xc0, 0xd6, 0x77, 0x9b, 0x9d, 0x4b, 0x72, 0x9c, 0x6f, 0x1c, 0xcc, 0x42}, SECP256K1_FE_CONST(0x70720db7, 0xe238d041, 0x21f5b1af, 0xd8cc5ad9, 0xd18944c6, 0xbdc94881, 0xf502b7a3, 0xaf3aecff), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0xedd1fd3e, 0x327ce90c, 0xc7a35426, 0x14289aee, 0x9682003e, 0x9cf7dcc9, 0xcf2ca974, 0x3be5aa0c), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x26, 0x64, 0xbb, 0xd5}, SECP256K1_FE_CONST(0x50873db3, 0x1badcc71, 0x890e4f67, 0x753a6575, 0x7f97aaa7, 0xdd5f1e82, 0xb753ace3, 0x2219064b), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x70, 0x28, 0xde, 0x7d}, SECP256K1_FE_CONST(0x1eea9cc5, 0x9cfcf2fa, 0x151ac6c2, 0x74eea411, 0x0feb4f7b, 0x68c59657, 0x32e9992e, 0x976ef68e), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xcb, 0xcf, 0xb7, 0xe7}, SECP256K1_FE_CONST(0x12303941, 0xaedc2088, 0x80735b1f, 0x1795c8e5, 0x5be520ea, 0x93e10335, 0x7b5d2adb, 0x7ed59b8e), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf3, 0x11, 0x3a, 0xd9}, SECP256K1_FE_CONST(0x7eed6b70, 0xe7b0767c, 0x7d7feac0, 0x4e57aa2a, 0x12fef5e0, 0xf48f878f, 0xcbb88b3b, 0x6b5e0783), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x13, 0xce, 0xa4, 0xa7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x64998443, 0x5b62b4a2, 0x5d40c613, 0x3e8d9ab8, 0xc53d4b05, 0x9ee8a154, 0xa3be0fcf, 0x4e892edb), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x13, 0xce, 0xa4, 0xa7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x64998443, 0x5b62b4a2, 0x5d40c613, 0x3e8d9ab8, 0xc53d4b05, 0x9ee8a154, 0xa3be0fcf, 0x4e892edb), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x15, 0x02, 0x8c, 0x59, 0x00, 0x63, 0xf6, 0x4d, 0x5a, 0x7f, 0x1c, 0x14, 0x91, 0x5c, 0xd6, 0x1e, 0xac, 0x88, 0x6a, 0xb2, 0x95, 0xbe, 0xbd, 0x91, 0x99, 0x25, 0x04, 0xcf, 0x77, 0xed, 0xb0, 0x28, 0xbd, 0xd6, 0x26, 0x7f}, SECP256K1_FE_CONST(0x3fde5713, 0xf8282eea, 0xd7d39d42, 0x01f44a7c, 0x85a5ac8a, 0x0681f35e, 0x54085c6b, 0x69543374), 1}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x27, 0x15, 0xde, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x3524f77f, 0xa3a6eb43, 0x89c3cb5d, 0x27f1f914, 0x62086429, 0xcd6c0cb0, 0xdf43ea8f, 0x1e7b3fb4), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x27, 0x15, 0xde, 0x86, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x3524f77f, 0xa3a6eb43, 0x89c3cb5d, 0x27f1f914, 0x62086429, 0xcd6c0cb0, 0xdf43ea8f, 0x1e7b3fb4), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x2c, 0x2c, 0x57, 0x09, 0xe7, 0x15, 0x6c, 0x41, 0x77, 0x17, 0xf2, 0xfe, 0xab, 0x14, 0x71, 0x41, 0xec, 0x3d, 0xa1, 0x9f, 0xb7, 0x59, 0x57, 0x5c, 0xc6, 0xe3, 0x7b, 0x2e, 0xa5, 0xac, 0x93, 0x09, 0xf2, 0x6f, 0x0f, 0x66}, SECP256K1_FE_CONST(0xd2469ab3, 0xe04acbb2, 0x1c65a180, 0x9f39caaf, 0xe7a77c13, 0xd10f9dd3, 0x8f391c01, 0xdc499c52), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3a, 0x08, 0xcc, 0x1e, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf7, 0x60, 0xe9, 0xf0}, SECP256K1_FE_CONST(0x38e2a5ce, 0x6a93e795, 0xe16d2c39, 0x8bc99f03, 0x69202ce2, 0x1e8f09d5, 0x6777b40f, 0xc512bccc), 1}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3e, 0x91, 0x25, 0x7d, 0x93, 0x20, 0x16, 0xcb, 0xf6, 0x9c, 0x44, 0x71, 0xbd, 0x1f, 0x65, 0x6c, 0x6a, 0x10, 0x7f, 0x19, 0x73, 0xde, 0x4a, 0xf7, 0x08, 0x6d, 0xb8, 0x97, 0x27, 0x70, 0x60, 0xe2, 0x56, 0x77, 0xf1, 0x9a}, SECP256K1_FE_CONST(0x864b3dc9, 0x02c37670, 0x9c10a93a, 0xd4bbe29f, 0xce0012f3, 0xdc8672c6, 0x286bba28, 0xd7d6d6fc), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x79, 0x5d, 0x6c, 0x1c, 0x32, 0x2c, 0xad, 0xf5, 0x99, 0xdb, 0xb8, 0x64, 0x81, 0x52, 0x2b, 0x3c, 0xc5, 0x5f, 0x15, 0xa6, 0x79, 0x32, 0xdb, 0x2a, 0xfa, 0x01, 0x11, 0xd9, 0xed, 0x69, 0x81, 0xbc, 0xd1, 0x24, 0xbf, 0x44}, SECP256K1_FE_CONST(0x766dfe4a, 0x700d9bee, 0x288b903a, 0xd58870e3, 0xd4fe2f0e, 0xf780bcac, 0x5c823f32, 0x0d9a9bef), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x8e, 0x42, 0x6f, 0x03, 0x92, 0x38, 0x90, 0x78, 0xc1, 0x2b, 0x1a, 0x89, 0xe9, 0x54, 0x2f, 0x05, 0x93, 0xbc, 0x96, 0xb6, 0xbf, 0xde, 0x82, 0x24, 0xf8, 0x65, 0x4e, 0xf5, 0xd5, 0xcd, 0xa9, 0x35, 0xa3, 0x58, 0x21, 0x94}, SECP256K1_FE_CONST(0xfaec7bc1, 0x987b6323, 0x3fbc5f95, 0x6edbf37d, 0x54404e74, 0x61c58ab8, 0x631bc68e, 0x451a0478), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x91, 0x19, 0x21, 0x39, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x45, 0xf0, 0xf1, 0xeb}, SECP256K1_FE_CONST(0xec29a50b, 0xae138dbf, 0x7d8e2482, 0x5006bb5f, 0xc1a2cc12, 0x43ba335b, 0xc6116fb9, 0xe498ec1f), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x98, 0xeb, 0x9a, 0xb7, 0x6e, 0x84, 0x49, 0x9c, 0x48, 0x3b, 0x3b, 0xf0, 0x62, 0x14, 0xab, 0xfe, 0x06, 0x5d, 0xdd, 0xf4, 0x3b, 0x86, 0x01, 0xde, 0x59, 0x6d, 0x63, 0xb9, 0xe4, 0x5a, 0x16, 0x6a, 0x58, 0x05, 0x41, 0xfe}, SECP256K1_FE_CONST(0x1e0ff2de, 0xe9b09b13, 0x6292a9e9, 0x10f0d6ac, 0x3e552a64, 0x4bba39e6, 0x4e9dd3e3, 0xbbd3d4d4), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x9b, 0x77, 0xb7, 0xf2, 0xc7, 0x4d, 0x99, 0xef, 0xce, 0xaa, 0x55, 0x0f, 0x1a, 0xd1, 0xc0, 0xf4, 0x3f, 0x46, 0xe7, 0xff, 0x1e, 0xe3, 0xbd, 0x01, 0x62, 0xb7, 0xbf, 0x55, 0xf2, 0x96, 0x5d, 0xa9, 0xc3, 0x45, 0x06, 0x46}, SECP256K1_FE_CONST(0x8b7dd5c3, 0xedba9ee9, 0x7b70eff4, 0x38f22dca, 0x9849c825, 0x4a2f3345, 0xa0a572ff, 0xeaae0928), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x9b, 0x77, 0xb7, 0xf2, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x15, 0x6c, 0xa8, 0x96}, SECP256K1_FE_CONST(0x0881950c, 0x8f51d6b9, 0xa6387465, 0xd5f12609, 0xef1bb254, 0x12a08a74, 0xcb2dfb20, 0x0c74bfbf), 1}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xa2, 0xf5, 0xcd, 0x83, 0x88, 0x16, 0xc1, 0x6c, 0x4f, 0xe8, 0xa1, 0x66, 0x1d, 0x60, 0x6f, 0xdb, 0x13, 0xcf, 0x9a, 0xf0, 0x4b, 0x97, 0x9a, 0x2e, 0x15, 0x9a, 0x09, 0x40, 0x9e, 0xbc, 0x86, 0x45, 0xd5, 0x8f, 0xde, 0x02}, SECP256K1_FE_CONST(0x2f083207, 0xb9fd9b55, 0x0063c31c, 0xd62b8746, 0xbd543bdc, 0x5bbf10e3, 0xa35563e9, 0x27f440c8), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb1, 0x3f, 0x75, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x4f51e0be, 0x078e0cdd, 0xab274215, 0x6adba7e7, 0xa148e731, 0x57072fd6, 0x18cd6094, 0x2b146bd0), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb1, 0x3f, 0x75, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x4f51e0be, 0x078e0cdd, 0xab274215, 0x6adba7e7, 0xa148e731, 0x57072fd6, 0x18cd6094, 0x2b146bd0), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe7, 0xbc, 0x1f, 0x8d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, SECP256K1_FE_CONST(0x16c2ccb5, 0x4352ff4b, 0xd794f6ef, 0xd613c721, 0x97ab7082, 0xda5b563b, 0xdf9cb3ed, 0xaafe74c2), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe7, 0xbc, 0x1f, 0x8d, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f}, SECP256K1_FE_CONST(0x16c2ccb5, 0x4352ff4b, 0xd794f6ef, 0xd613c721, 0x97ab7082, 0xda5b563b, 0xdf9cb3ed, 0xaafe74c2), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xef, 0x64, 0xd1, 0x62, 0x75, 0x05, 0x46, 0xce, 0x42, 0xb0, 0x43, 0x13, 0x61, 0xe5, 0x2d, 0x4f, 0x52, 0x42, 0xd8, 0xf2, 0x4f, 0x33, 0xe6, 0xb1, 0xf9, 0x9b, 0x59, 0x16, 0x47, 0xcb, 0xc8, 0x08, 0xf4, 0x62, 0xaf, 0x51}, SECP256K1_FE_CONST(0xd41244d1, 0x1ca4f652, 0x40687759, 0xf95ca9ef, 0xbab767ed, 0xedb38fd1, 0x8c36e18c, 0xd3b6f6a9), 1}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xe5, 0xbe, 0x52, 0x37, 0x2d, 0xd6, 0xe8, 0x94, 0xb2, 0xa3, 0x26, 0xfc, 0x36, 0x05, 0xa6, 0xe8, 0xf3, 0xc6, 0x9c, 0x71, 0x0b, 0xf2, 0x7d, 0x63, 0x0d, 0xfe, 0x20, 0x04, 0x98, 0x8b, 0x78, 0xeb, 0x6e, 0xab, 0x36}, SECP256K1_FE_CONST(0x64bf84dd, 0x5e03670f, 0xdb24c0f5, 0xd3c2c365, 0x736f51db, 0x6c92d950, 0x10716ad2, 0xd36134c8), 0}, + {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfb, 0xb9, 0x82, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf6, 0xd6, 0xdb, 0x1f}, SECP256K1_FE_CONST(0x1c92ccdf, 0xcf4ac550, 0xc28db57c, 0xff0c8515, 0xcb26936c, 0x786584a7, 0x0114008d, 0x6c33a34b), 0}, +}; + +/** This is a hasher for ellswift_xdh which just returns the shared X coordinate. + * + * This is generally a bad idea as it means changes to the encoding of the + * exchanged public keys do not affect the shared secret. However, it's used here + * in tests to be able to verify the X coordinate through other means. + */ +static int ellswift_xdh_hash_x32(unsigned char *output, const unsigned char *x32, const unsigned char *ell_a64, const unsigned char *ell_b64, void *data) { + (void)ell_a64; + (void)ell_b64; + (void)data; + memcpy(output, x32, 32); + return 1; +} + +void run_ellswift_tests(void) { + int i = 0; + /* Test vectors. */ + for (i = 0; (unsigned)i < sizeof(ellswift_xswiftec_inv_tests) / sizeof(ellswift_xswiftec_inv_tests[0]); ++i) { + const struct ellswift_xswiftec_inv_test *testcase = &ellswift_xswiftec_inv_tests[i]; + int c; + for (c = 0; c < 8; ++c) { + secp256k1_fe t; + int ret = secp256k1_ellswift_xswiftec_inv_var(&t, &testcase->x, &testcase->u, c); + CHECK(ret == ((testcase->enc_bitmap >> c) & 1)); + if (ret) { + secp256k1_fe x2; + CHECK(check_fe_equal(&t, &testcase->encs[c])); + secp256k1_ellswift_xswiftec_var(&x2, &testcase->u, &testcase->encs[c]); + CHECK(check_fe_equal(&testcase->x, &x2)); + } + } + } + for (i = 0; (unsigned)i < sizeof(ellswift_decode_tests) / sizeof(ellswift_decode_tests[0]); ++i) { + const struct ellswift_decode_test *testcase = &ellswift_decode_tests[i]; + secp256k1_pubkey pubkey; + secp256k1_ge ge; + int ret; + ret = secp256k1_ellswift_decode(CTX, &pubkey, testcase->enc); + CHECK(ret); + ret = secp256k1_pubkey_load(CTX, &ge, &pubkey); + CHECK(ret); + CHECK(check_fe_equal(&testcase->x, &ge.x)); + CHECK(secp256k1_fe_is_odd(&ge.y) == testcase->odd_y); + } + /* Verify that secp256k1_ellswift_encode + decode roundtrips. */ + for (i = 0; i < 1000 * COUNT; i++) { + unsigned char rnd32[32]; + unsigned char ell64[64]; + secp256k1_ge g, g2; + secp256k1_pubkey pubkey, pubkey2; + /* Generate random public key and random randomizer. */ + random_group_element_test(&g); + secp256k1_pubkey_save(&pubkey, &g); + secp256k1_testrand256(rnd32); + /* Convert the public key to ElligatorSwift and back. */ + secp256k1_ellswift_encode(CTX, ell64, &pubkey, rnd32); + secp256k1_ellswift_decode(CTX, &pubkey2, ell64); + secp256k1_pubkey_load(CTX, &g2, &pubkey2); + /* Compare with original. */ + ge_equals_ge(&g, &g2); + } + /* Verify the behavior of secp256k1_ellswift_create */ + for (i = 0; i < 400 * COUNT; i++) { + unsigned char auxrnd32[32], sec32[32]; + secp256k1_scalar sec; + secp256k1_gej res; + secp256k1_ge dec; + secp256k1_pubkey pub; + unsigned char ell64[64]; + int ret; + /* Generate random secret key and random randomizer. */ + if (i & 1) secp256k1_testrand256_test(auxrnd32); + random_scalar_order_test(&sec); + secp256k1_scalar_get_b32(sec32, &sec); + /* Construct ElligatorSwift-encoded public keys for that key. */ + ret = secp256k1_ellswift_create(CTX, ell64, sec32, (i & 1) ? auxrnd32 : NULL); + CHECK(ret); + /* Decode it, and compare with traditionally-computed public key. */ + secp256k1_ellswift_decode(CTX, &pub, ell64); + secp256k1_pubkey_load(CTX, &dec, &pub); + secp256k1_ecmult(&res, NULL, &secp256k1_scalar_zero, &sec); + ge_equals_gej(&dec, &res); + } + /* Verify that secp256k1_ellswift_xdh computes the right shared X coordinate. */ + for (i = 0; i < 800 * COUNT; i++) { + unsigned char ell64[64], sec32[32], share32[32]; + secp256k1_scalar sec; + secp256k1_ge dec, res; + secp256k1_fe share_x; + secp256k1_gej decj, resj; + secp256k1_pubkey pub; + int ret; + /* Generate random secret key. */ + random_scalar_order_test(&sec); + secp256k1_scalar_get_b32(sec32, &sec); + /* Generate random ElligatorSwift encoding for the remote key and decode it. */ + secp256k1_testrand256_test(ell64); + secp256k1_testrand256_test(ell64 + 32); + secp256k1_ellswift_decode(CTX, &pub, ell64); + secp256k1_pubkey_load(CTX, &dec, &pub); + secp256k1_gej_set_ge(&decj, &dec); + /* Compute the X coordinate of seckey*pubkey using ellswift_xdh. Note that we + * pass ell64 as claimed (but incorrect) encoding for sec32 here; this works + * because the "hasher" function we use here ignores the ell64 arguments. */ + ret = secp256k1_ellswift_xdh(CTX, share32, ell64, ell64, sec32, i & 1, &ellswift_xdh_hash_x32, NULL); + CHECK(ret); + (void)secp256k1_fe_set_b32_limit(&share_x, share32); /* no overflow is possible */ + secp256k1_fe_verify(&share_x); + /* Compute seckey*pubkey directly. */ + secp256k1_ecmult(&resj, &decj, &sec, NULL); + secp256k1_ge_set_gej(&res, &resj); + /* Compare. */ + CHECK(check_fe_equal(&res.x, &share_x)); + } + /* Verify the joint behavior of secp256k1_ellswift_xdh */ + for (i = 0; i < 200 * COUNT; i++) { + unsigned char auxrnd32a[32], auxrnd32b[32]; + unsigned char sec32a[32], sec32b[32], sec32a_bad[32], sec32b_bad[32]; + secp256k1_scalar seca, secb; + unsigned char ell64a[64], ell64b[64], ell64a_bad[64], ell64b_bad[64]; + unsigned char share32a[32], share32b[32], share32_bad[32]; + int ret; + + /* Generate random secret keys and random randomizers. */ + secp256k1_testrand256_test(auxrnd32a); + secp256k1_testrand256_test(auxrnd32b); + random_scalar_order_test(&seca); + random_scalar_order_test(&secb); + secp256k1_scalar_get_b32(sec32a, &seca); + secp256k1_scalar_get_b32(sec32b, &secb); + + /* Construct ElligatorSwift-encoded public keys for those keys. */ + /* For A: */ + ret = secp256k1_ellswift_create(CTX, ell64a, sec32a, auxrnd32a); + CHECK(ret); + /* For B: */ + ret = secp256k1_ellswift_create(CTX, ell64b, sec32b, auxrnd32b); + CHECK(ret); + + /* Compute the shared secret both ways and compare with each other. */ + /* For A: */ + ret = secp256k1_ellswift_xdh(CTX, share32a, ell64a, ell64b, sec32a, 0, &ellswift_xdh_hash_x32, NULL); + CHECK(ret); + /* For B: */ + ret = secp256k1_ellswift_xdh(CTX, share32b, ell64a, ell64b, sec32b, 1, &ellswift_xdh_hash_x32, NULL); + CHECK(ret); + /* And compare: */ + CHECK(secp256k1_memcmp_var(share32a, share32b, 32) == 0); + + /* Verify that the shared secret doesn't match if other side's public key is incorrect. */ + /* For A (using a bad public key for B): */ + memcpy(ell64b_bad, ell64b, sizeof(ell64a_bad)); + secp256k1_testrand_flip(ell64b_bad, sizeof(ell64b_bad)); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b_bad, sec32a, 0, &ellswift_xdh_hash_x32, NULL); + CHECK(ret); /* Mismatching encodings don't get detected by secp256k1_ellswift_xdh. */ + CHECK(secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); + /* For B (using a bad public key for A): */ + memcpy(ell64a_bad, ell64a, sizeof(ell64a_bad)); + secp256k1_testrand_flip(ell64a_bad, sizeof(ell64a_bad)); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a_bad, ell64b, sec32b, 1, &ellswift_xdh_hash_x32, NULL); + CHECK(ret); + CHECK(secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); + + /* Verify that the shared secret doesn't match if the private key is incorrect. */ + /* For A: */ + memcpy(sec32a_bad, sec32a, sizeof(sec32a_bad)); + secp256k1_testrand_flip(sec32a_bad, sizeof(sec32a_bad)); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32a_bad, 0, &ellswift_xdh_hash_x32, NULL); + CHECK(!ret || secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); + /* For B: */ + memcpy(sec32b_bad, sec32b, sizeof(sec32b_bad)); + secp256k1_testrand_flip(sec32b_bad, sizeof(sec32b_bad)); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32b_bad, 1, &ellswift_xdh_hash_x32, NULL); + CHECK(!ret || secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); + } + + /* Test hash initializers. */ + { + secp256k1_sha256 sha, sha_optimized; + static const unsigned char encode_tag[25] = "secp256k1_ellswift_encode"; + static const unsigned char create_tag[25] = "secp256k1_ellswift_create"; + + /* Check that hash initialized by + * secp256k1_ellswift_sha256_init_encode has the expected + * state. */ + secp256k1_sha256_initialize_tagged(&sha, encode_tag, sizeof(encode_tag)); + secp256k1_ellswift_sha256_init_encode(&sha_optimized); + test_sha256_eq(&sha, &sha_optimized); + + /* Check that hash initialized by + * secp256k1_ellswift_sha256_init_create has the expected + * state. */ + secp256k1_sha256_initialize_tagged(&sha, create_tag, sizeof(create_tag)); + secp256k1_ellswift_sha256_init_create(&sha_optimized); + test_sha256_eq(&sha, &sha_optimized); + } +} + +#endif diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index ddcb8a599b..90337ff03e 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -20,17 +20,6 @@ static void nonce_function_bip340_bitflip(unsigned char **args, size_t n_flip, s CHECK(secp256k1_memcmp_var(nonces[0], nonces[1], 32) != 0); } -/* Tests for the equality of two sha256 structs. This function only produces a - * correct result if an integer multiple of 64 many bytes have been written - * into the hash functions. */ -static void test_sha256_eq(const secp256k1_sha256 *sha1, const secp256k1_sha256 *sha2) { - /* Is buffer fully consumed? */ - CHECK((sha1->bytes & 0x3F) == 0); - - CHECK(sha1->bytes == sha2->bytes); - CHECK(secp256k1_memcmp_var(sha1->s, sha2->s, sizeof(sha1->s)) == 0); -} - static void run_nonce_function_bip340_tests(void) { unsigned char tag[13] = "BIP0340/nonce"; unsigned char aux_tag[11] = "BIP0340/aux"; diff --git a/src/tests.c b/src/tests.c index 4b93bd29aa..8ada3f869b 100644 --- a/src/tests.c +++ b/src/tests.c @@ -697,6 +697,17 @@ static void run_sha256_counter_tests(void) { } } +/* Tests for the equality of two sha256 structs. This function only produces a + * correct result if an integer multiple of 64 many bytes have been written + * into the hash functions. This function is used by some module tests. */ +static void test_sha256_eq(const secp256k1_sha256 *sha1, const secp256k1_sha256 *sha2) { + /* Is buffer fully consumed? */ + CHECK((sha1->bytes & 0x3F) == 0); + + CHECK(sha1->bytes == sha2->bytes); + CHECK(secp256k1_memcmp_var(sha1->s, sha2->s, sizeof(sha1->s)) == 0); +} + static void run_hmac_sha256_tests(void) { static const char *keys[6] = { "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b", @@ -7528,6 +7539,10 @@ static void run_ecdsa_wycheproof(void) { # include "modules/schnorrsig/tests_impl.h" #endif +#ifdef ENABLE_MODULE_ELLSWIFT +# include "modules/ellswift/tests_impl.h" +#endif + static void run_secp256k1_memczero_test(void) { unsigned char buf1[6] = {1, 2, 3, 4, 5, 6}; unsigned char buf2[sizeof(buf1)]; @@ -7875,6 +7890,10 @@ int main(int argc, char **argv) { run_schnorrsig_tests(); #endif +#ifdef ENABLE_MODULE_ELLSWIFT + run_ellswift_tests(); +#endif + /* util tests */ run_secp256k1_memczero_test(); run_secp256k1_byteorder_tests(); From df633cdeba133a9468c43f055122b07bf102dd2d Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 5 May 2023 04:37:30 -0400 Subject: [PATCH 162/557] Add _prefix and _bip324 ellswift_xdh hash functions --- include/secp256k1_ellswift.h | 15 ++++- src/modules/ellswift/main_impl.h | 45 +++++++++++++ src/modules/ellswift/tests_impl.h | 106 ++++++++++++++++++++++++++++-- 3 files changed, 158 insertions(+), 8 deletions(-) diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index cc70f0bc34..3851f93098 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -8,7 +8,7 @@ extern "C" { #endif /* This module provides an implementation of ElligatorSwift as well as a - * version of x-only ECDH using it. + * version of x-only ECDH using it (including compatibility with BIP324). * * ElligatorSwift is described in https://eprint.iacr.org/2022/759 by * Chavez-Saab, Rodriguez-Henriquez, and Tibouchi. It permits encoding @@ -67,6 +67,19 @@ typedef int (*secp256k1_ellswift_xdh_hash_function)( void *data ); +/** An implementation of an secp256k1_ellswift_xdh_hash_function which uses + * SHA256(prefix64 || ell_a64 || ell_b64 || x32), where prefix64 is the 64-byte + * array pointed to by data. */ +SECP256K1_API_VAR const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_prefix; + +/** An implementation of an secp256k1_ellswift_xdh_hash_function compatible with + * BIP324. It returns H_tag(ell_a64 || ell_b64 || x32), where H_tag is the + * BIP340 tagged hash function with tag "bip324_ellswift_xonly_ecdh". Equivalent + * to secp256k1_ellswift_xdh_hash_function_prefix with prefix64 set to + * SHA256("bip324_ellswift_xonly_ecdh")||SHA256("bip324_ellswift_xonly_ecdh"). + * The data argument is ignored. */ +SECP256K1_API_VAR const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_bip324; + /** Construct a 64-byte ElligatorSwift encoding of a given pubkey. * * Returns: 1 always. diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index 72d52e206a..c824fc972b 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -498,6 +498,51 @@ int secp256k1_ellswift_decode(const secp256k1_context *ctx, secp256k1_pubkey *pu return 1; } +static int ellswift_xdh_hash_function_prefix(unsigned char *output, const unsigned char *x32, const unsigned char *ell_a64, const unsigned char *ell_b64, void *data) { + secp256k1_sha256 sha; + + secp256k1_sha256_initialize(&sha); + secp256k1_sha256_write(&sha, data, 64); + secp256k1_sha256_write(&sha, ell_a64, 64); + secp256k1_sha256_write(&sha, ell_b64, 64); + secp256k1_sha256_write(&sha, x32, 32); + secp256k1_sha256_finalize(&sha, output); + + return 1; +} + +/** Set hash state to the BIP340 tagged hash midstate for "bip324_ellswift_xonly_ecdh". */ +static void secp256k1_ellswift_sha256_init_bip324(secp256k1_sha256* hash) { + secp256k1_sha256_initialize(hash); + hash->s[0] = 0x8c12d730ul; + hash->s[1] = 0x827bd392ul; + hash->s[2] = 0x9e4fb2eeul; + hash->s[3] = 0x207b373eul; + hash->s[4] = 0x2292bd7aul; + hash->s[5] = 0xaa5441bcul; + hash->s[6] = 0x15c3779ful; + hash->s[7] = 0xcfb52549ul; + + hash->bytes = 64; +} + +static int ellswift_xdh_hash_function_bip324(unsigned char* output, const unsigned char *x32, const unsigned char *ell_a64, const unsigned char *ell_b64, void *data) { + secp256k1_sha256 sha; + + (void)data; + + secp256k1_ellswift_sha256_init_bip324(&sha); + secp256k1_sha256_write(&sha, ell_a64, 64); + secp256k1_sha256_write(&sha, ell_b64, 64); + secp256k1_sha256_write(&sha, x32, 32); + secp256k1_sha256_finalize(&sha, output); + + return 1; +} + +const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_prefix = ellswift_xdh_hash_function_prefix; +const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_bip324 = ellswift_xdh_hash_function_bip324; + int secp256k1_ellswift_xdh(const secp256k1_context *ctx, unsigned char *output, const unsigned char *ell_a64, const unsigned char *ell_b64, const unsigned char *seckey32, int party, secp256k1_ellswift_xdh_hash_function hashfp, void *data) { int ret = 0; int overflow; diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index 5fe26d0eca..86ca09862b 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -21,6 +21,14 @@ struct ellswift_decode_test { int odd_y; }; +struct ellswift_xdh_test { + unsigned char priv_ours[32]; + unsigned char ellswift_ours[64]; + unsigned char ellswift_theirs[64]; + int initiating; + unsigned char shared_secret[32]; +}; + /* Set of (point, encodings) test vectors, selected to maximize branch coverage, part of the BIP324 * test vectors. Created using an independent implementation, and tested decoding against paper * authors' code. */ @@ -141,6 +149,19 @@ static const struct ellswift_decode_test ellswift_decode_tests[] = { {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfb, 0xb9, 0x82, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf6, 0xd6, 0xdb, 0x1f}, SECP256K1_FE_CONST(0x1c92ccdf, 0xcf4ac550, 0xc28db57c, 0xff0c8515, 0xcb26936c, 0x786584a7, 0x0114008d, 0x6c33a34b), 0}, }; +/* Set of expected ellswift_xdh BIP324 shared secrets, given private key, encodings, initiating, + * taken from the BIP324 test vectors. Created using an independent implementation, and tested + * against the paper authors' decoding code. */ +static const struct ellswift_xdh_test ellswift_xdh_tests_bip324[] = { + {{0x61, 0x06, 0x2e, 0xa5, 0x07, 0x1d, 0x80, 0x0b, 0xbf, 0xd5, 0x9e, 0x2e, 0x8b, 0x53, 0xd4, 0x7d, 0x19, 0x4b, 0x09, 0x5a, 0xe5, 0xa4, 0xdf, 0x04, 0x93, 0x6b, 0x49, 0x77, 0x2e, 0xf0, 0xd4, 0xd7}, {0xec, 0x0a, 0xdf, 0xf2, 0x57, 0xbb, 0xfe, 0x50, 0x0c, 0x18, 0x8c, 0x80, 0xb4, 0xfd, 0xd6, 0x40, 0xf6, 0xb4, 0x5a, 0x48, 0x2b, 0xbc, 0x15, 0xfc, 0x7c, 0xef, 0x59, 0x31, 0xde, 0xff, 0x0a, 0xa1, 0x86, 0xf6, 0xeb, 0x9b, 0xba, 0x7b, 0x85, 0xdc, 0x4d, 0xcc, 0x28, 0xb2, 0x87, 0x22, 0xde, 0x1e, 0x3d, 0x91, 0x08, 0xb9, 0x85, 0xe2, 0x96, 0x70, 0x45, 0x66, 0x8f, 0x66, 0x09, 0x8e, 0x47, 0x5b}, {0xa4, 0xa9, 0x4d, 0xfc, 0xe6, 0x9b, 0x4a, 0x2a, 0x0a, 0x09, 0x93, 0x13, 0xd1, 0x0f, 0x9f, 0x7e, 0x7d, 0x64, 0x9d, 0x60, 0x50, 0x1c, 0x9e, 0x1d, 0x27, 0x4c, 0x30, 0x0e, 0x0d, 0x89, 0xaa, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x8f, 0xaf, 0x88, 0xd5}, 1, {0xc6, 0x99, 0x2a, 0x11, 0x7f, 0x5e, 0xdb, 0xea, 0x70, 0xc3, 0xf5, 0x11, 0xd3, 0x2d, 0x26, 0xb9, 0x79, 0x8b, 0xe4, 0xb8, 0x1a, 0x62, 0xea, 0xee, 0x1a, 0x5a, 0xca, 0xa8, 0x45, 0x9a, 0x35, 0x92}}, + {{0x1f, 0x9c, 0x58, 0x1b, 0x35, 0x23, 0x18, 0x38, 0xf0, 0xf1, 0x7c, 0xf0, 0xc9, 0x79, 0x83, 0x5b, 0xac, 0xcb, 0x7f, 0x3a, 0xbb, 0xbb, 0x96, 0xff, 0xcc, 0x31, 0x8a, 0xb7, 0x1e, 0x6e, 0x12, 0x6f}, {0xa1, 0x85, 0x5e, 0x10, 0xe9, 0x4e, 0x00, 0xba, 0xa2, 0x30, 0x41, 0xd9, 0x16, 0xe2, 0x59, 0xf7, 0x04, 0x4e, 0x49, 0x1d, 0xa6, 0x17, 0x12, 0x69, 0x69, 0x47, 0x63, 0xf0, 0x18, 0xc7, 0xe6, 0x36, 0x93, 0xd2, 0x95, 0x75, 0xdc, 0xb4, 0x64, 0xac, 0x81, 0x6b, 0xaa, 0x1b, 0xe3, 0x53, 0xba, 0x12, 0xe3, 0x87, 0x6c, 0xba, 0x76, 0x28, 0xbd, 0x0b, 0xd8, 0xe7, 0x55, 0xe7, 0x21, 0xeb, 0x01, 0x40}, {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xfc, 0x2f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 0, {0xa0, 0x13, 0x8f, 0x56, 0x4f, 0x74, 0xd0, 0xad, 0x70, 0xbc, 0x33, 0x7d, 0xac, 0xc9, 0xd0, 0xbf, 0x1d, 0x23, 0x49, 0x36, 0x4c, 0xaf, 0x11, 0x88, 0xa1, 0xe6, 0xe8, 0xdd, 0xb3, 0xb7, 0xb1, 0x84}}, + {{0x02, 0x86, 0xc4, 0x1c, 0xd3, 0x09, 0x13, 0xdb, 0x0f, 0xdf, 0xf7, 0xa6, 0x4e, 0xbd, 0xa5, 0xc8, 0xe3, 0xe7, 0xce, 0xf1, 0x0f, 0x2a, 0xeb, 0xc0, 0x0a, 0x76, 0x50, 0x44, 0x3c, 0xf4, 0xc6, 0x0d}, {0xd1, 0xee, 0x8a, 0x93, 0xa0, 0x11, 0x30, 0xcb, 0xf2, 0x99, 0x24, 0x9a, 0x25, 0x8f, 0x94, 0xfe, 0xb5, 0xf4, 0x69, 0xe7, 0xd0, 0xf2, 0xf2, 0x8f, 0x69, 0xee, 0x5e, 0x9a, 0xa8, 0xf9, 0xb5, 0x4a, 0x60, 0xf2, 0xc3, 0xff, 0x2d, 0x02, 0x36, 0x34, 0xec, 0x7f, 0x41, 0x27, 0xa9, 0x6c, 0xc1, 0x16, 0x62, 0xe4, 0x02, 0x89, 0x4c, 0xf1, 0xf6, 0x94, 0xfb, 0x9a, 0x7e, 0xaa, 0x5f, 0x1d, 0x92, 0x44}, {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x22, 0xd5, 0xe4, 0x41, 0x52, 0x4d, 0x57, 0x1a, 0x52, 0xb3, 0xde, 0xf1, 0x26, 0x18, 0x9d, 0x3f, 0x41, 0x68, 0x90, 0xa9, 0x9d, 0x4d, 0xa6, 0xed, 0xe2, 0xb0, 0xcd, 0xe1, 0x76, 0x0c, 0xe2, 0xc3, 0xf9, 0x84, 0x57, 0xae}, 1, {0x25, 0x0b, 0x93, 0x57, 0x0d, 0x41, 0x11, 0x49, 0x10, 0x5a, 0xb8, 0xcb, 0x0b, 0xc5, 0x07, 0x99, 0x14, 0x90, 0x63, 0x06, 0x36, 0x8c, 0x23, 0xe9, 0xd7, 0x7c, 0x2a, 0x33, 0x26, 0x5b, 0x99, 0x4c}}, + {{0x6c, 0x77, 0x43, 0x2d, 0x1f, 0xda, 0x31, 0xe9, 0xf9, 0x42, 0xf8, 0xaf, 0x44, 0x60, 0x7e, 0x10, 0xf3, 0xad, 0x38, 0xa6, 0x5f, 0x8a, 0x4b, 0xdd, 0xae, 0x82, 0x3e, 0x5e, 0xff, 0x90, 0xdc, 0x38}, {0xd2, 0x68, 0x50, 0x70, 0xc1, 0xe6, 0x37, 0x6e, 0x63, 0x3e, 0x82, 0x52, 0x96, 0x63, 0x4f, 0xd4, 0x61, 0xfa, 0x9e, 0x5b, 0xdf, 0x21, 0x09, 0xbc, 0xeb, 0xd7, 0x35, 0xe5, 0xa9, 0x1f, 0x3e, 0x58, 0x7c, 0x5c, 0xb7, 0x82, 0xab, 0xb7, 0x97, 0xfb, 0xf6, 0xbb, 0x50, 0x74, 0xfd, 0x15, 0x42, 0xa4, 0x74, 0xf2, 0xa4, 0x5b, 0x67, 0x37, 0x63, 0xec, 0x2d, 0xb7, 0xfb, 0x99, 0xb7, 0x37, 0xbb, 0xb9}, {0x56, 0xbd, 0x0c, 0x06, 0xf1, 0x03, 0x52, 0xc3, 0xa1, 0xa9, 0xf4, 0xb4, 0xc9, 0x2f, 0x6f, 0xa2, 0xb2, 0x6d, 0xf1, 0x24, 0xb5, 0x78, 0x78, 0x35, 0x3c, 0x1f, 0xc6, 0x91, 0xc5, 0x1a, 0xbe, 0xa7, 0x7c, 0x88, 0x17, 0xda, 0xee, 0xb9, 0xfa, 0x54, 0x6b, 0x77, 0xc8, 0xda, 0xf7, 0x9d, 0x89, 0xb2, 0x2b, 0x0e, 0x1b, 0x87, 0x57, 0x4e, 0xce, 0x42, 0x37, 0x1f, 0x00, 0x23, 0x7a, 0xa9, 0xd8, 0x3a}, 0, {0x19, 0x18, 0xb7, 0x41, 0xef, 0x5f, 0x9d, 0x1d, 0x76, 0x70, 0xb0, 0x50, 0xc1, 0x52, 0xb4, 0xa4, 0xea, 0xd2, 0xc3, 0x1b, 0xe9, 0xae, 0xcb, 0x06, 0x81, 0xc0, 0xcd, 0x43, 0x24, 0x15, 0x08, 0x53}}, + {{0xa6, 0xec, 0x25, 0x12, 0x7c, 0xa1, 0xaa, 0x4c, 0xf1, 0x6b, 0x20, 0x08, 0x4b, 0xa1, 0xe6, 0x51, 0x6b, 0xaa, 0xe4, 0xd3, 0x24, 0x22, 0x28, 0x8e, 0x9b, 0x36, 0xd8, 0xbd, 0xdd, 0x2d, 0xe3, 0x5a}, {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x05, 0x3d, 0x7e, 0xcc, 0xa5, 0x3e, 0x33, 0xe1, 0x85, 0xa8, 0xb9, 0xbe, 0x4e, 0x76, 0x99, 0xa9, 0x7c, 0x6f, 0xf4, 0xc7, 0x95, 0x52, 0x2e, 0x59, 0x18, 0xab, 0x7c, 0xd6, 0xb6, 0x88, 0x4f, 0x67, 0xe6, 0x83, 0xf3, 0xdc}, {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xa7, 0x73, 0x0b, 0xe3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 1, {0xdd, 0x21, 0x0a, 0xa6, 0x62, 0x9f, 0x20, 0xbb, 0x32, 0x8e, 0x5d, 0x89, 0xda, 0xa6, 0xeb, 0x2a, 0xc3, 0xd1, 0xc6, 0x58, 0xa7, 0x25, 0x53, 0x6f, 0xf1, 0x54, 0xf3, 0x1b, 0x53, 0x6c, 0x23, 0xb2}}, + {{0x0a, 0xf9, 0x52, 0x65, 0x9e, 0xd7, 0x6f, 0x80, 0xf5, 0x85, 0x96, 0x6b, 0x95, 0xab, 0x6e, 0x6f, 0xd6, 0x86, 0x54, 0x67, 0x28, 0x27, 0x87, 0x86, 0x84, 0xc8, 0xb5, 0x47, 0xb1, 0xb9, 0x4f, 0x5a}, {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc8, 0x10, 0x17, 0xfd, 0x92, 0xfd, 0x31, 0x63, 0x7c, 0x26, 0xc9, 0x06, 0xb4, 0x20, 0x92, 0xe1, 0x1c, 0xc0, 0xd3, 0xaf, 0xae, 0x8d, 0x90, 0x19, 0xd2, 0x57, 0x8a, 0xf2, 0x27, 0x35, 0xce, 0x7b, 0xc4, 0x69, 0xc7, 0x2d}, {0x96, 0x52, 0xd7, 0x8b, 0xae, 0xfc, 0x02, 0x8c, 0xd3, 0x7a, 0x6a, 0x92, 0x62, 0x5b, 0x8b, 0x8f, 0x85, 0xfd, 0xe1, 0xe4, 0xc9, 0x44, 0xad, 0x3f, 0x20, 0xe1, 0x98, 0xbe, 0xf8, 0xc0, 0x2f, 0x19, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf2, 0xe9, 0x18, 0x70}, 0, {0x35, 0x68, 0xf2, 0xae, 0xa2, 0xe1, 0x4e, 0xf4, 0xee, 0x4a, 0x3c, 0x2a, 0x8b, 0x8d, 0x31, 0xbc, 0x5e, 0x31, 0x87, 0xba, 0x86, 0xdb, 0x10, 0x73, 0x9b, 0x4f, 0xf8, 0xec, 0x92, 0xff, 0x66, 0x55}}, + {{0xf9, 0x0e, 0x08, 0x0c, 0x64, 0xb0, 0x58, 0x24, 0xc5, 0xa2, 0x4b, 0x25, 0x01, 0xd5, 0xae, 0xaf, 0x08, 0xaf, 0x38, 0x72, 0xee, 0x86, 0x0a, 0xa8, 0x0b, 0xdc, 0xd4, 0x30, 0xf7, 0xb6, 0x34, 0x94}, {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x11, 0x51, 0x73, 0x76, 0x5d, 0xc2, 0x02, 0xcf, 0x02, 0x9a, 0xd3, 0xf1, 0x54, 0x79, 0x73, 0x5d, 0x57, 0x69, 0x7a, 0xf1, 0x2b, 0x01, 0x31, 0xdd, 0x21, 0x43, 0x0d, 0x57, 0x72, 0xe4, 0xef, 0x11, 0x47, 0x4d, 0x58, 0xb9}, {0x12, 0xa5, 0x0f, 0x3f, 0xaf, 0xea, 0x7c, 0x1e, 0xea, 0xda, 0x4c, 0xf8, 0xd3, 0x37, 0x77, 0x70, 0x4b, 0x77, 0x36, 0x14, 0x53, 0xaf, 0xc8, 0x3b, 0xda, 0x91, 0xee, 0xf3, 0x49, 0xae, 0x04, 0x4d, 0x20, 0x12, 0x6c, 0x62, 0x00, 0x54, 0x7e, 0xa5, 0xa6, 0x91, 0x17, 0x76, 0xc0, 0x5d, 0xee, 0x2a, 0x7f, 0x1a, 0x9b, 0xa7, 0xdf, 0xba, 0xbb, 0xbd, 0x27, 0x3c, 0x3e, 0xf2, 0x9e, 0xf4, 0x6e, 0x46}, 1, {0xe2, 0x54, 0x61, 0xfb, 0x0e, 0x4c, 0x16, 0x2e, 0x18, 0x12, 0x3e, 0xcd, 0xe8, 0x83, 0x42, 0xd5, 0x4d, 0x44, 0x96, 0x31, 0xe9, 0xb7, 0x5a, 0x26, 0x6f, 0xd9, 0x26, 0x0c, 0x2b, 0xb2, 0xf4, 0x1d}}, +}; + /** This is a hasher for ellswift_xdh which just returns the shared X coordinate. * * This is generally a bad idea as it means changes to the encoding of the @@ -185,6 +206,22 @@ void run_ellswift_tests(void) { CHECK(check_fe_equal(&testcase->x, &ge.x)); CHECK(secp256k1_fe_is_odd(&ge.y) == testcase->odd_y); } + for (i = 0; (unsigned)i < sizeof(ellswift_xdh_tests_bip324) / sizeof(ellswift_xdh_tests_bip324[0]); ++i) { + const struct ellswift_xdh_test *test = &ellswift_xdh_tests_bip324[i]; + unsigned char shared_secret[32]; + int ret; + int party = !test->initiating; + const unsigned char* ell_a64 = party ? test->ellswift_theirs : test->ellswift_ours; + const unsigned char* ell_b64 = party ? test->ellswift_ours : test->ellswift_theirs; + ret = secp256k1_ellswift_xdh(CTX, shared_secret, + ell_a64, ell_b64, + test->priv_ours, + party, + secp256k1_ellswift_xdh_hash_function_bip324, + NULL); + CHECK(ret); + CHECK(secp256k1_memcmp_var(shared_secret, test->shared_secret, 32) == 0); + } /* Verify that secp256k1_ellswift_encode + decode roundtrips. */ for (i = 0; i < 1000 * COUNT; i++) { unsigned char rnd32[32]; @@ -257,13 +294,30 @@ void run_ellswift_tests(void) { } /* Verify the joint behavior of secp256k1_ellswift_xdh */ for (i = 0; i < 200 * COUNT; i++) { - unsigned char auxrnd32a[32], auxrnd32b[32]; + unsigned char auxrnd32a[32], auxrnd32b[32], auxrnd32a_bad[32], auxrnd32b_bad[32]; unsigned char sec32a[32], sec32b[32], sec32a_bad[32], sec32b_bad[32]; secp256k1_scalar seca, secb; unsigned char ell64a[64], ell64b[64], ell64a_bad[64], ell64b_bad[64]; unsigned char share32a[32], share32b[32], share32_bad[32]; + unsigned char prefix64[64]; + secp256k1_ellswift_xdh_hash_function hash_function; + void* data; int ret; + /* Pick hasher to use. */ + if ((i % 3) == 0) { + hash_function = ellswift_xdh_hash_x32; + data = NULL; + } else if ((i % 3) == 1) { + hash_function = secp256k1_ellswift_xdh_hash_function_bip324; + data = NULL; + } else { + hash_function = secp256k1_ellswift_xdh_hash_function_prefix; + secp256k1_testrand256_test(prefix64); + secp256k1_testrand256_test(prefix64 + 32); + data = prefix64; + } + /* Generate random secret keys and random randomizers. */ secp256k1_testrand256_test(auxrnd32a); secp256k1_testrand256_test(auxrnd32b); @@ -282,10 +336,10 @@ void run_ellswift_tests(void) { /* Compute the shared secret both ways and compare with each other. */ /* For A: */ - ret = secp256k1_ellswift_xdh(CTX, share32a, ell64a, ell64b, sec32a, 0, &ellswift_xdh_hash_x32, NULL); + ret = secp256k1_ellswift_xdh(CTX, share32a, ell64a, ell64b, sec32a, 0, hash_function, data); CHECK(ret); /* For B: */ - ret = secp256k1_ellswift_xdh(CTX, share32b, ell64a, ell64b, sec32b, 1, &ellswift_xdh_hash_x32, NULL); + ret = secp256k1_ellswift_xdh(CTX, share32b, ell64a, ell64b, sec32b, 1, hash_function, data); CHECK(ret); /* And compare: */ CHECK(secp256k1_memcmp_var(share32a, share32b, 32) == 0); @@ -294,13 +348,13 @@ void run_ellswift_tests(void) { /* For A (using a bad public key for B): */ memcpy(ell64b_bad, ell64b, sizeof(ell64a_bad)); secp256k1_testrand_flip(ell64b_bad, sizeof(ell64b_bad)); - ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b_bad, sec32a, 0, &ellswift_xdh_hash_x32, NULL); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b_bad, sec32a, 0, hash_function, data); CHECK(ret); /* Mismatching encodings don't get detected by secp256k1_ellswift_xdh. */ CHECK(secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); /* For B (using a bad public key for A): */ memcpy(ell64a_bad, ell64a, sizeof(ell64a_bad)); secp256k1_testrand_flip(ell64a_bad, sizeof(ell64a_bad)); - ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a_bad, ell64b, sec32b, 1, &ellswift_xdh_hash_x32, NULL); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a_bad, ell64b, sec32b, 1, hash_function, data); CHECK(ret); CHECK(secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); @@ -308,13 +362,43 @@ void run_ellswift_tests(void) { /* For A: */ memcpy(sec32a_bad, sec32a, sizeof(sec32a_bad)); secp256k1_testrand_flip(sec32a_bad, sizeof(sec32a_bad)); - ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32a_bad, 0, &ellswift_xdh_hash_x32, NULL); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32a_bad, 0, hash_function, data); CHECK(!ret || secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); /* For B: */ memcpy(sec32b_bad, sec32b, sizeof(sec32b_bad)); secp256k1_testrand_flip(sec32b_bad, sizeof(sec32b_bad)); - ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32b_bad, 1, &ellswift_xdh_hash_x32, NULL); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32b_bad, 1, hash_function, data); CHECK(!ret || secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); + + if (hash_function != ellswift_xdh_hash_x32) { + /* Verify that the shared secret doesn't match when a different encoding of the same public key is used. */ + /* For A (changing B's public key): */ + memcpy(auxrnd32b_bad, auxrnd32b, sizeof(auxrnd32b_bad)); + secp256k1_testrand_flip(auxrnd32b_bad, sizeof(auxrnd32b_bad)); + ret = secp256k1_ellswift_create(CTX, ell64b_bad, sec32b, auxrnd32b_bad); + CHECK(ret); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b_bad, sec32a, 0, hash_function, data); + CHECK(ret); + CHECK(secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); + /* For B (changing A's public key): */ + memcpy(auxrnd32a_bad, auxrnd32a, sizeof(auxrnd32a_bad)); + secp256k1_testrand_flip(auxrnd32a_bad, sizeof(auxrnd32a_bad)); + ret = secp256k1_ellswift_create(CTX, ell64a_bad, sec32a, auxrnd32a_bad); + CHECK(ret); + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a_bad, ell64b, sec32b, 1, hash_function, data); + CHECK(ret); + CHECK(secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); + + /* Verify that swapping sides changes the shared secret. */ + /* For A (claiming to be B): */ + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32a, 1, hash_function, data); + CHECK(ret); + CHECK(secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); + /* For B (claiming to be A): */ + ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32b, 0, hash_function, data); + CHECK(ret); + CHECK(secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); + } } /* Test hash initializers. */ @@ -322,6 +406,7 @@ void run_ellswift_tests(void) { secp256k1_sha256 sha, sha_optimized; static const unsigned char encode_tag[25] = "secp256k1_ellswift_encode"; static const unsigned char create_tag[25] = "secp256k1_ellswift_create"; + static const unsigned char bip324_tag[26] = "bip324_ellswift_xonly_ecdh"; /* Check that hash initialized by * secp256k1_ellswift_sha256_init_encode has the expected @@ -336,6 +421,13 @@ void run_ellswift_tests(void) { secp256k1_sha256_initialize_tagged(&sha, create_tag, sizeof(create_tag)); secp256k1_ellswift_sha256_init_create(&sha_optimized); test_sha256_eq(&sha, &sha_optimized); + + /* Check that hash initialized by + * secp256k1_ellswift_sha256_init_bip324 has the expected + * state. */ + secp256k1_sha256_initialize_tagged(&sha, bip324_tag, sizeof(bip324_tag)); + secp256k1_ellswift_sha256_init_bip324(&sha_optimized); + test_sha256_eq(&sha, &sha_optimized); } } From 2d1d41acf85a385be6c436307eb826122c21846f Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 4 Nov 2022 15:52:12 -0400 Subject: [PATCH 163/557] Add ctime tests for ellswift module --- src/ctime_tests.c | 35 ++++++++++++++++++++++++++++++++ src/modules/ellswift/main_impl.h | 2 ++ 2 files changed, 37 insertions(+) diff --git a/src/ctime_tests.c b/src/ctime_tests.c index 713eb427d3..af7891a91c 100644 --- a/src/ctime_tests.c +++ b/src/ctime_tests.c @@ -30,6 +30,10 @@ #include "../include/secp256k1_schnorrsig.h" #endif +#ifdef ENABLE_MODULE_ELLSWIFT +#include "../include/secp256k1_ellswift.h" +#endif + static void run_tests(secp256k1_context *ctx, unsigned char *key); int main(void) { @@ -80,6 +84,10 @@ static void run_tests(secp256k1_context *ctx, unsigned char *key) { #ifdef ENABLE_MODULE_EXTRAKEYS secp256k1_keypair keypair; #endif +#ifdef ENABLE_MODULE_ELLSWIFT + unsigned char ellswift[64]; + static const unsigned char prefix[64] = {'t', 'e', 's', 't'}; +#endif for (i = 0; i < 32; i++) { msg[i] = i + 1; @@ -171,4 +179,31 @@ static void run_tests(secp256k1_context *ctx, unsigned char *key) { SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); CHECK(ret == 1); #endif + +#ifdef ENABLE_MODULE_ELLSWIFT + VALGRIND_MAKE_MEM_UNDEFINED(key, 32); + ret = secp256k1_ellswift_create(ctx, ellswift, key, NULL); + VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + CHECK(ret == 1); + + VALGRIND_MAKE_MEM_UNDEFINED(key, 32); + ret = secp256k1_ellswift_create(ctx, ellswift, key, ellswift); + VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + CHECK(ret == 1); + + for (i = 0; i < 2; i++) { + VALGRIND_MAKE_MEM_UNDEFINED(key, 32); + VALGRIND_MAKE_MEM_DEFINED(&ellswift, sizeof(ellswift)); + ret = secp256k1_ellswift_xdh(ctx, msg, ellswift, ellswift, key, i, secp256k1_ellswift_xdh_hash_function_bip324, NULL); + VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + CHECK(ret == 1); + + VALGRIND_MAKE_MEM_UNDEFINED(key, 32); + VALGRIND_MAKE_MEM_DEFINED(&ellswift, sizeof(ellswift)); + ret = secp256k1_ellswift_xdh(ctx, msg, ellswift, ellswift, key, i, secp256k1_ellswift_xdh_hash_function_prefix, (void *)prefix); + VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + CHECK(ret == 1); + } + +#endif } diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index c824fc972b..00bb8a3da5 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -463,6 +463,7 @@ int secp256k1_ellswift_create(const secp256k1_context *ctx, unsigned char *ell64 /* Compute (affine) public key */ ret = secp256k1_ec_pubkey_create_helper(&ctx->ecmult_gen_ctx, &seckey_scalar, &p, seckey32); + secp256k1_declassify(ctx, &p, sizeof(p)); /* not constant time in produced pubkey */ secp256k1_fe_normalize_var(&p.x); secp256k1_fe_normalize_var(&p.y); @@ -471,6 +472,7 @@ int secp256k1_ellswift_create(const secp256k1_context *ctx, unsigned char *ell64 secp256k1_ellswift_sha256_init_create(&hash); secp256k1_sha256_write(&hash, seckey32, 32); secp256k1_sha256_write(&hash, zero32, sizeof(zero32)); + secp256k1_declassify(ctx, &hash, sizeof(hash)); /* private key is hashed now */ if (auxrnd32) secp256k1_sha256_write(&hash, auxrnd32, 32); /* Compute ElligatorSwift encoding and construct output. */ From 1bcea8c57f3f232c8e91d9eb3aad522766d13026 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 4 Nov 2022 16:21:54 -0400 Subject: [PATCH 164/557] Add benchmarks for ellswift module --- src/bench.c | 30 ++++++- src/modules/ellswift/Makefile.am.include | 1 + src/modules/ellswift/bench_impl.h | 106 +++++++++++++++++++++++ 3 files changed, 136 insertions(+), 1 deletion(-) create mode 100644 src/modules/ellswift/bench_impl.h diff --git a/src/bench.c b/src/bench.c index 342943527d..1127df67ae 100644 --- a/src/bench.c +++ b/src/bench.c @@ -55,6 +55,14 @@ static void help(int default_iters) { printf(" schnorrsig_verify : Schnorr verification algorithm\n"); #endif +#ifdef ENABLE_MODULE_ELLSWIFT + printf(" ellswift : all ElligatorSwift benchmarks (encode, decode, keygen, ecdh)\n"); + printf(" ellswift_encode : ElligatorSwift encoding\n"); + printf(" ellswift_decode : ElligatorSwift decoding\n"); + printf(" ellswift_keygen : ElligatorSwift key generation\n"); + printf(" ellswift_ecdh : ECDH on ElligatorSwift keys\n"); +#endif + printf("\n"); } @@ -153,6 +161,10 @@ static void bench_keygen_run(void *arg, int iters) { # include "modules/schnorrsig/bench_impl.h" #endif +#ifdef ENABLE_MODULE_ELLSWIFT +# include "modules/ellswift/bench_impl.h" +#endif + int main(int argc, char** argv) { int i; secp256k1_pubkey pubkey; @@ -166,7 +178,8 @@ int main(int argc, char** argv) { /* Check for invalid user arguments */ char* valid_args[] = {"ecdsa", "verify", "ecdsa_verify", "sign", "ecdsa_sign", "ecdh", "recover", "ecdsa_recover", "schnorrsig", "schnorrsig_verify", "schnorrsig_sign", "ec", - "keygen", "ec_keygen"}; + "keygen", "ec_keygen", "ellswift", "encode", "ellswift_encode", "decode", + "ellswift_decode", "ellswift_keygen", "ellswift_ecdh"}; size_t valid_args_size = sizeof(valid_args)/sizeof(valid_args[0]); int invalid_args = have_invalid_args(argc, argv, valid_args, valid_args_size); @@ -208,6 +221,16 @@ int main(int argc, char** argv) { } #endif +#ifndef ENABLE_MODULE_ELLSWIFT + if (have_flag(argc, argv, "ellswift") || have_flag(argc, argv, "ellswift_encode") || have_flag(argc, argv, "ellswift_decode") || + have_flag(argc, argv, "encode") || have_flag(argc, argv, "decode") || have_flag(argc, argv, "ellswift_keygen") || + have_flag(argc, argv, "ellswift_ecdh")) { + fprintf(stderr, "./bench: ElligatorSwift module not enabled.\n"); + fprintf(stderr, "Use ./configure --enable-module-ellswift.\n\n"); + return 1; + } +#endif + /* ECDSA benchmark */ data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); @@ -247,5 +270,10 @@ int main(int argc, char** argv) { run_schnorrsig_bench(iters, argc, argv); #endif +#ifdef ENABLE_MODULE_ELLSWIFT + /* ElligatorSwift benchmarks */ + run_ellswift_bench(iters, argc, argv); +#endif + return 0; } diff --git a/src/modules/ellswift/Makefile.am.include b/src/modules/ellswift/Makefile.am.include index 4067b0d814..e7efea2981 100644 --- a/src/modules/ellswift/Makefile.am.include +++ b/src/modules/ellswift/Makefile.am.include @@ -1,3 +1,4 @@ include_HEADERS += include/secp256k1_ellswift.h +noinst_HEADERS += src/modules/ellswift/bench_impl.h noinst_HEADERS += src/modules/ellswift/main_impl.h noinst_HEADERS += src/modules/ellswift/tests_impl.h diff --git a/src/modules/ellswift/bench_impl.h b/src/modules/ellswift/bench_impl.h new file mode 100644 index 0000000000..b16a3a3687 --- /dev/null +++ b/src/modules/ellswift/bench_impl.h @@ -0,0 +1,106 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_ELLSWIFT_BENCH_H +#define SECP256K1_MODULE_ELLSWIFT_BENCH_H + +#include "../../../include/secp256k1_ellswift.h" + +typedef struct { + secp256k1_context *ctx; + secp256k1_pubkey point[256]; + unsigned char rnd64[64]; +} bench_ellswift_data; + +static void bench_ellswift_setup(void *arg) { + int i; + bench_ellswift_data *data = (bench_ellswift_data*)arg; + static const unsigned char init[64] = { + 0x78, 0x1f, 0xb7, 0xd4, 0x67, 0x7f, 0x08, 0x68, + 0xdb, 0xe3, 0x1d, 0x7f, 0x1b, 0xb0, 0xf6, 0x9e, + 0x0a, 0x64, 0xca, 0x32, 0x9e, 0xc6, 0x20, 0x79, + 0x03, 0xf3, 0xd0, 0x46, 0x7a, 0x0f, 0xd2, 0x21, + 0xb0, 0x2c, 0x46, 0xd8, 0xba, 0xca, 0x26, 0x4f, + 0x8f, 0x8c, 0xd4, 0xdd, 0x2d, 0x04, 0xbe, 0x30, + 0x48, 0x51, 0x1e, 0xd4, 0x16, 0xfd, 0x42, 0x85, + 0x62, 0xc9, 0x02, 0xf9, 0x89, 0x84, 0xff, 0xdc + }; + memcpy(data->rnd64, init, 64); + for (i = 0; i < 256; ++i) { + int j; + CHECK(secp256k1_ellswift_decode(data->ctx, &data->point[i], data->rnd64)); + for (j = 0; j < 64; ++j) { + data->rnd64[j] += 1; + } + } + CHECK(secp256k1_ellswift_encode(data->ctx, data->rnd64, &data->point[255], init + 16)); +} + +static void bench_ellswift_encode(void *arg, int iters) { + int i; + bench_ellswift_data *data = (bench_ellswift_data*)arg; + + for (i = 0; i < iters; i++) { + CHECK(secp256k1_ellswift_encode(data->ctx, data->rnd64, &data->point[i & 255], data->rnd64 + 16)); + } +} + +static void bench_ellswift_create(void *arg, int iters) { + int i; + bench_ellswift_data *data = (bench_ellswift_data*)arg; + + for (i = 0; i < iters; i++) { + unsigned char buf[64]; + CHECK(secp256k1_ellswift_create(data->ctx, buf, data->rnd64, data->rnd64 + 32)); + memcpy(data->rnd64, buf, 64); + } +} + +static void bench_ellswift_decode(void *arg, int iters) { + int i; + secp256k1_pubkey out; + size_t len; + bench_ellswift_data *data = (bench_ellswift_data*)arg; + + for (i = 0; i < iters; i++) { + CHECK(secp256k1_ellswift_decode(data->ctx, &out, data->rnd64) == 1); + len = 33; + CHECK(secp256k1_ec_pubkey_serialize(data->ctx, data->rnd64 + (i % 32), &len, &out, SECP256K1_EC_COMPRESSED)); + } +} + +static void bench_ellswift_xdh(void *arg, int iters) { + int i; + bench_ellswift_data *data = (bench_ellswift_data*)arg; + + for (i = 0; i < iters; i++) { + int party = i & 1; + CHECK(secp256k1_ellswift_xdh(data->ctx, + data->rnd64 + (i % 33), + data->rnd64, + data->rnd64, + data->rnd64 + ((i + 16) % 33), + party, + secp256k1_ellswift_xdh_hash_function_bip324, + NULL) == 1); + } +} + +void run_ellswift_bench(int iters, int argc, char **argv) { + bench_ellswift_data data; + int d = argc == 1; + + /* create a context with signing capabilities */ + data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); + + if (d || have_flag(argc, argv, "ellswift") || have_flag(argc, argv, "encode") || have_flag(argc, argv, "ellswift_encode")) run_benchmark("ellswift_encode", bench_ellswift_encode, bench_ellswift_setup, NULL, &data, 10, iters); + if (d || have_flag(argc, argv, "ellswift") || have_flag(argc, argv, "decode") || have_flag(argc, argv, "ellswift_decode")) run_benchmark("ellswift_decode", bench_ellswift_decode, bench_ellswift_setup, NULL, &data, 10, iters); + if (d || have_flag(argc, argv, "ellswift") || have_flag(argc, argv, "keygen") || have_flag(argc, argv, "ellswift_keygen")) run_benchmark("ellswift_keygen", bench_ellswift_create, bench_ellswift_setup, NULL, &data, 10, iters); + if (d || have_flag(argc, argv, "ellswift") || have_flag(argc, argv, "ecdh") || have_flag(argc, argv, "ellswift_ecdh")) run_benchmark("ellswift_ecdh", bench_ellswift_xdh, bench_ellswift_setup, NULL, &data, 10, iters); + + secp256k1_context_destroy(data.ctx); +} + +#endif From 4f091847c20c9e9dd3cece2e8b62549278e5028b Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 4 Nov 2022 16:21:25 -0400 Subject: [PATCH 165/557] Add ellswift testing to CI --- .cirrus.yml | 16 ++++++++++++---- ci/cirrus.sh | 1 + 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 12e9870340..5a00b65a33 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -21,6 +21,7 @@ env: ECDH: no RECOVERY: no SCHNORRSIG: no + ELLSWIFT: no ### test options SECP256K1_TEST_ITERS: BENCH: yes @@ -74,12 +75,12 @@ task: << : *LINUX_CONTAINER matrix: &ENV_MATRIX - env: {WIDEMUL: int64, RECOVERY: yes} - - env: {WIDEMUL: int64, ECDH: yes, SCHNORRSIG: yes} + - env: {WIDEMUL: int64, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - env: {WIDEMUL: int128} - - env: {WIDEMUL: int128_struct} - - env: {WIDEMUL: int128, RECOVERY: yes, SCHNORRSIG: yes} + - env: {WIDEMUL: int128_struct, ELLSWIFT: yes} + - env: {WIDEMUL: int128, RECOVERY: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - env: {WIDEMUL: int128, ECDH: yes, SCHNORRSIG: yes} - - env: {WIDEMUL: int128, ASM: x86_64} + - env: {WIDEMUL: int128, ASM: x86_64 , ELLSWIFT: yes} - env: { RECOVERY: yes, SCHNORRSIG: yes} - env: {CTIMETESTS: no, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, CPPFLAGS: -DVERIFY} - env: {BUILD: distcheck, WITH_VALGRIND: no, CTIMETESTS: no, BENCH: no} @@ -154,6 +155,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: no << : *MERGE_BASE test_script: @@ -173,6 +175,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: no matrix: - env: {} @@ -193,6 +196,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: no << : *MERGE_BASE test_script: @@ -210,6 +214,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: no << : *MERGE_BASE test_script: @@ -247,6 +252,7 @@ task: RECOVERY: yes EXPERIMENTAL: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: no # Use a MinGW-w64 host to tell ./configure we're building for Windows. # This will detect some MinGW-w64 tools but then make will need only @@ -286,6 +292,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: no matrix: - name: "Valgrind (memcheck)" @@ -361,6 +368,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes << : *MERGE_BASE test_script: - ./ci/cirrus.sh diff --git a/ci/cirrus.sh b/ci/cirrus.sh index 5e39e4d518..8d82818611 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -61,6 +61,7 @@ fi --with-ecmult-window="$ECMULTWINDOW" \ --with-ecmult-gen-precision="$ECMULTGENPRECISION" \ --enable-module-ecdh="$ECDH" --enable-module-recovery="$RECOVERY" \ + --enable-module-ellswift="$ELLSWIFT" \ --enable-module-schnorrsig="$SCHNORRSIG" \ --enable-examples="$EXAMPLES" \ --enable-ctime-tests="$CTIMETESTS" \ From 90e360acc2511f313964e394005bafb377b4f191 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 23 Dec 2022 13:19:15 -0500 Subject: [PATCH 166/557] Add doc/ellswift.md with ElligatorSwift explanation --- doc/ellswift.md | 483 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 483 insertions(+) create mode 100644 doc/ellswift.md diff --git a/doc/ellswift.md b/doc/ellswift.md new file mode 100644 index 0000000000..7fbb7c1787 --- /dev/null +++ b/doc/ellswift.md @@ -0,0 +1,483 @@ +# ElligatorSwift for secp256k1 explained + +In this document we explain how the `ellswift` module implementation is related to the +construction in the +["SwiftEC: Shallue–van de Woestijne Indifferentiable Function To Elliptic Curves"](https://eprint.iacr.org/2022/759) +paper by Jorge Chávez-Saab, Francisco Rodríguez-Henríquez, and Mehdi Tibouchi. + +* [1. Introduction](#1-introduction) +* [2. The decoding function](#2-the-decoding-function) + + [2.1 Decoding for `secp256k1`](#21-decoding-for-secp256k1) +* [3. The encoding function](#3-the-encoding-function) + + [3.1 Switching to *v, w* coordinates](#31-switching-to-v-w-coordinates) + + [3.2 Avoiding computing all inverses](#32-avoiding-computing-all-inverses) + + [3.3 Finding the inverse](#33-finding-the-inverse) + + [3.4 Dealing with special cases](#34-dealing-with-special-cases) + + [3.5 Encoding for `secp256k1`](#35-encoding-for-secp256k1) +* [4. Encoding and decoding full *(x, y)* coordinates](#4-encoding-and-decoding-full-x-y-coordinates) + + [4.1 Full *(x, y)* coordinates for `secp256k1`](#41-full-x-y-coordinates-for-secp256k1) + +## 1. Introduction + +The `ellswift` module effectively introduces a new 64-byte public key format, with the property +that (uniformly random) public keys can be encoded as 64-byte arrays which are computationally +indistinguishable from uniform byte arrays. The module provides functions to convert public keys +from and to this format, as well as convenience functions for key generation and ECDH that operate +directly on ellswift-encoded keys. + +The encoding consists of the concatenation of two (32-byte big endian) encoded field elements $u$ +and $t.$ Together they encode an x-coordinate on the curve $x$, or (see further) a full point $(x, y)$ on +the curve. + +**Decoding** consists of decoding the field elements $u$ and $t$ (values above the field size $p$ +are taken modulo $p$), and then evaluating $F_u(t)$, which for every $u$ and $t$ results in a valid +x-coordinate on the curve. The functions $F_u$ will be defined in [Section 2](#2-the-decoding-function). + +**Encoding** a given $x$ coordinate is conceptually done as follows: +* Loop: + * Pick a uniformly random field element $u.$ + * Compute the set $L = F_u^{-1}(x)$ of $t$ values for which $F_u(t) = x$, which may have up to *8* elements. + * With probability $1 - \dfrac{\\#L}{8}$, restart the loop. + * Select a uniformly random $t \in L$ and return $(u, t).$ + +This is the *ElligatorSwift* algorithm, here given for just x-coordinates. An extension to full +$(x, y)$ points will be given in [Section 4](#4-encoding-and-decoding-full-x-y-coordinates). +The algorithm finds a uniformly random $(u, t)$ among (almost all) those +for which $F_u(t) = x.$ Section 3.2 in the paper proves that the number of such encodings for +almost all x-coordinates on the curve (all but at most 39) is close to two times the field size +(specifically, it lies in the range $2q \pm (22\sqrt{q} + O(1))$, where $q$ is the size of the field). + +## 2. The decoding function + +First some definitions: +* $\mathbb{F}$ is the finite field of size $q$, of characteristic 5 or more, and $q \equiv 1 \mod 3.$ + * For `secp256k1`, $q = 2^{256} - 2^{32} - 977$, which satisfies that requirement. +* Let $E$ be the elliptic curve of points $(x, y) \in \mathbb{F}^2$ for which $y^2 = x^3 + ax + b$, with $a$ and $b$ + public constants, for which $\Delta_E = -16(4a^3 + 27b^2)$ is a square, and at least one of $(-b \pm \sqrt{-3 \Delta_E} / 36)/2$ is a square. + This implies that the order of $E$ is either odd, or a multiple of *4*. + If $a=0$, this condition is always fulfilled. + * For `secp256k1`, $a=0$ and $b=7.$ +* Let the function $g(x) = x^3 + ax + b$, so the $E$ curve equation is also $y^2 = g(x).$ +* Let the function $h(x) = 3x^3 + 4a.$ +* Define $V$ as the set of solutions $(x_1, x_2, x_3, z)$ to $z^2 = g(x_1)g(x_2)g(x_3).$ +* Define $S_u$ as the set of solutions $(X, Y)$ to $X^2 + h(u)Y^2 = -g(u)$ and $Y \neq 0.$ +* $P_u$ is a function from $\mathbb{F}$ to $S_u$ that will be defined below. +* $\psi_u$ is a function from $S_u$ to $V$ that will be defined below. + +**Note**: In the paper: +* $F_u$ corresponds to $F_{0,u}$ there. +* $P_u(t)$ is called $P$ there. +* All $S_u$ sets together correspond to $S$ there. +* All $\psi_u$ functions together (operating on elements of $S$) correspond to $\psi$ there. + +Note that for $V$, the left hand side of the equation $z^2$ is square, and thus the right +hand must also be square. As multiplying non-squares results in a square in $\mathbb{F}$, +out of the three right-hand side factors an even number must be non-squares. +This implies that exactly *1* or exactly *3* out of +$\\{g(x_1), g(x_2), g(x_3)\\}$ must be square, and thus that for any $(x_1,x_2,x_3,z) \in V$, +at least one of $\\{x_1, x_2, x_3\\}$ must be a valid x-coordinate on $E.$ There is one exception +to this, namely when $z=0$, but even then one of the three values is a valid x-coordinate. + +**Define** the decoding function $F_u(t)$ as: +* Let $(x_1, x_2, x_3, z) = \psi_u(P_u(t)).$ +* Return the first element $x$ of $(x_3, x_2, x_1)$ which is a valid x-coordinate on $E$ (i.e., $g(x)$ is square). + +$P_u(t) = (X(u, t), Y(u, t))$, where: + +$$ +\begin{array}{lcl} +X(u, t) & = & \left\\{\begin{array}{ll} + \dfrac{g(u) - t^2}{2t} & a = 0 \\ + \dfrac{g(u) + h(u)(Y_0(u) + X_0(u)t)^2}{X_0(u)(1 + h(u)t^2)} & a \neq 0 +\end{array}\right. \\ +Y(u, t) & = & \left\\{\begin{array}{ll} + \dfrac{X(u, t) + t}{u \sqrt{-3}} = \dfrac{g(u) + t^2}{2tu\sqrt{-3}} & a = 0 \\ + Y_0(u) + t(X(u, t) - X_0(u)) & a \neq 0 +\end{array}\right. +\end{array} +$$ + +$P_u(t)$ is defined: +* For $a=0$, unless: + * $u = 0$ or $t = 0$ (division by zero) + * $g(u) = -t^2$ (would give $Y=0$). +* For $a \neq 0$, unless: + * $X_0(u) = 0$ or $h(u)t^2 = -1$ (division by zero) + * $Y_0(u) (1 - h(u)t^2) = 2X_0(u)t$ (would give $Y=0$). + +The functions $X_0(u)$ and $Y_0(u)$ are defined in Appendix A of the paper, and depend on various properties of $E.$ + +The function $\psi_u$ is the same for all curves: $\psi_u(X, Y) = (x_1, x_2, x_3, z)$, where: + +$$ +\begin{array}{lcl} + x_1 & = & \dfrac{X}{2Y} - \dfrac{u}{2} && \\ + x_2 & = & -\dfrac{X}{2Y} - \dfrac{u}{2} && \\ + x_3 & = & u + 4Y^2 && \\ + z & = & \dfrac{g(x_3)}{2Y}(u^2 + ux_1 + x_1^2 + a) = \dfrac{-g(u)g(x_3)}{8Y^3} +\end{array} +$$ + +### 2.1 Decoding for `secp256k1` + +Put together and specialized for $a=0$ curves, decoding $(u, t)$ to an x-coordinate is: + +**Define** $F_u(t)$ as: +* Let $X = \dfrac{u^3 + b - t^2}{2t}.$ +* Let $Y = \dfrac{X + t}{u\sqrt{-3}}.$ +* Return the first $x$ in $(u + 4Y^2, \dfrac{-X}{2Y} - \dfrac{u}{2}, \dfrac{X}{2Y} - \dfrac{u}{2})$ for which $g(x)$ is square. + +To make sure that every input decodes to a valid x-coordinate, we remap the inputs in case +$P_u$ is not defined (when $u=0$, $t=0$, or $g(u) = -t^2$): + +**Define** $F_u(t)$ as: +* Let $u'=u$ if $u \neq 0$; $1$ otherwise (guaranteeing $u' \neq 0$). +* Let $t'=t$ if $t \neq 0$; $1$ otherwise (guaranteeing $t' \neq 0$). +* Let $t''=t'$ if $g(u') \neq -t'^2$; $2t'$ otherwise (guaranteeing $t'' \neq 0$ and $g(u') \neq -t''^2$). +* Let $X = \dfrac{u'^3 + b - t''^2}{2t''}.$ +* Let $Y = \dfrac{X + t''}{u'\sqrt{-3}}.$ +* Return the first $x$ in $(u' + 4Y^2, \dfrac{-X}{2Y} - \dfrac{u'}{2}, \dfrac{X}{2Y} - \dfrac{u'}{2})$ for which $x^3 + b$ is square. + +The choices here are not strictly necessary. Just returning a fixed constant in any of the undefined cases would suffice, +but the approach here is simple enough and gives fairly uniform output even in these cases. + +**Note**: in the paper these conditions result in $\infty$ as output, due to the use of projective coordinates there. +We wish to avoid the need for callers to deal with this special case. + +This is implemented in `secp256k1_ellswift_xswiftec_frac_var` (which decodes to an x-coordinate represented as a fraction), and +in `secp256k1_ellswift_xswiftec_var` (which outputs the actual x-coordinate). + +## 3. The encoding function + +To implement $F_u^{-1}(x)$, the function to find the set of inverses $t$ for which $F_u(t) = x$, we have to reverse the process: +* Find all the $(X, Y) \in S_u$ that could have given rise to $x$, through the $x_1$, $x_2$, or $x_3$ formulas in $\psi_u.$ +* Map those $(X, Y)$ solutions to $t$ values using $P_u^{-1}(X, Y).$ +* For each of the found $t$ values, verify that $F_u(t) = x.$ +* Return the remaining $t$ values. + +The function $P_u^{-1}$, which finds $t$ given $(X, Y) \in S_u$, is significantly simpler than $P_u:$ + +$$ +P_u^{-1}(X, Y) = \left\\{\begin{array}{ll} +Yu\sqrt{-3} - X & a = 0 \\ +\dfrac{Y-Y_0(u)}{X-X_0(u)} & a \neq 0 \land X \neq X_0(u) \\ +\dfrac{-X_0(u)}{h(u)Y_0(u)} & a \neq 0 \land X = X_0(u) \land Y = Y_0(u) +\end{array}\right. +$$ + +The third step above, verifying that $F_u(t) = x$, is necessary because for the $(X, Y)$ values found through the $x_1$ and $x_2$ expressions, +it is possible that decoding through $\psi_u(X, Y)$ yields a valid $x_3$ on the curve, which would take precedence over the +$x_1$ or $x_2$ decoding. These $(X, Y)$ solutions must be rejected. + +Since we know that exactly one or exactly three out of $\\{x_1, x_2, x_3\\}$ are valid x-coordinates for any $t$, +the case where either $x_1$ or $x_2$ is valid and in addition also $x_3$ is valid must mean that all three are valid. +This means that instead of checking whether $x_3$ is on the curve, it is also possible to check whether the other one out of +$x_1$ and $x_2$ is on the curve. This is significantly simpler, as it turns out. + +Observe that $\psi_u$ guarantees that $x_1 + x_2 = -u.$ So given either $x = x_1$ or $x = x_2$, the other one of the two can be computed as +$-u - x.$ Thus, when encoding $x$ through the $x_1$ or $x_2$ expressions, one can simply check whether $g(-u-x)$ is a square, +and if so, not include the corresponding $t$ values in the returned set. As this does not need $X$, $Y$, or $t$, this condition can be determined +before those values are computed. + +It is not possible that an encoding found through the $x_1$ expression decodes to a different valid x-coordinate using $x_2$ (which would +take precedence), for the same reason: if both $x_1$ and $x_2$ decodings were valid, $x_3$ would be valid as well, and thus take +precedence over both. Because of this, the $g(-u-x)$ being square test for $x_1$ and $x_2$ is the only test necessary to guarantee the found $t$ +values round-trip back to the input $x$ correctly. This is the reason for choosing the $(x_3, x_2, x_1)$ precedence order in the decoder; +any order which does not place $x_3$ first requires more complicated round-trip checks in the encoder. + +### 3.1 Switching to *v, w* coordinates + +Before working out the formulas for all this, we switch to different variables for $S_u.$ Let $v = (X/Y - u)/2$, and +$w = 2Y.$ Or in the other direction, $X = w(u/2 + v)$ and $Y = w/2:$ +* $S_u'$ becomes the set of $(v, w)$ for which $w^2 (u^2 + uv + v^2 + a) = -g(u)$ and $w \neq 0.$ +* For $a=0$ curves, $P_u^{-1}$ can be stated for $(v,w)$ as $P_u^{'-1}(v, w) = w\left(\frac{\sqrt{-3}-1}{2}u - v\right).$ +* $\psi_u$ can be stated for $(v, w)$ as $\psi_u'(v, w) = (x_1, x_2, x_3, z)$, where + +$$ +\begin{array}{lcl} + x_1 & = & v \\ + x_2 & = & -u - v \\ + x_3 & = & u + w^2 \\ + z & = & \dfrac{g(x_3)}{w}(u^2 + uv + v^2 + a) = \dfrac{-g(u)g(x_3)}{w^3} +\end{array} +$$ + +We can now write the expressions for finding $(v, w)$ given $x$ explicitly, by solving each of the $\\{x_1, x_2, x_3\\}$ +expressions for $v$ or $w$, and using the $S_u'$ equation to find the other variable: +* Assuming $x = x_1$, we find $v = x$ and $w = \pm\sqrt{-g(u)/(u^2 + uv + v^2 + a)}$ (two solutions). +* Assuming $x = x_2$, we find $v = -u-x$ and $w = \pm\sqrt{-g(u)/(u^2 + uv + v^2 + a)}$ (two solutions). +* Assuming $x = x_3$, we find $w = \pm\sqrt{x-u}$ and $v = -u/2 \pm \sqrt{-w^2(4g(u) + w^2h(u))}/(2w^2)$ (four solutions). + +### 3.2 Avoiding computing all inverses + +The *ElligatorSwift* algorithm as stated in Section 1 requires the computation of $L = F_u^{-1}(x)$ (the +set of all $t$ such that $(u, t)$ decode to $x$) in full. This is unnecessary. + +Observe that the procedure of restarting with probability $(1 - \frac{\\#L}{8})$ and otherwise returning a +uniformly random element from $L$ is actually equivalent to always padding $L$ with $\bot$ values up to length 8, +picking a uniformly random element from that, restarting whenever $\bot$ is picked: + +**Define** *ElligatorSwift(x)* as: +* Loop: + * Pick a uniformly random field element $u.$ + * Compute the set $L = F_u^{-1}(x).$ + * Let $T$ be the 8-element vector consisting of the elements of $L$, plus $8 - \\#L$ times $\\{\bot\\}.$ + * Select a uniformly random $t \in T.$ + * If $t \neq \bot$, return $(u, t)$; restart loop otherwise. + +Now notice that the order of elements in $T$ does not matter, as all we do is pick a uniformly +random element in it, so we do not need to have all $\bot$ values at the end. +As we have 8 distinct formulas for finding $(v, w)$ (taking the variants due to $\pm$ into account), +we can associate every index in $T$ with exactly one of those formulas, making sure that: +* Formulas that yield no solutions (due to division by zero or non-existing square roots) or invalid solutions are made to return $\bot.$ +* For the $x_1$ and $x_2$ cases, if $g(-u-x)$ is a square, $\bot$ is returned instead (the round-trip check). +* In case multiple formulas would return the same non- $\bot$ result, all but one of those must be turned into $\bot$ to avoid biasing those. + +The last condition above only occurs with negligible probability for cryptographically-sized curves, but is interesting +to take into account as it allows exhaustive testing in small groups. See [Section 3.4](#34-dealing-with-special-cases) +for an analysis of all the negligible cases. + +If we define $T = (G_{0,u}(x), G_{1,u}(x), \ldots, G_{7,u}(x))$, with each $G_{i,u}$ matching one of the formulas, +the loop can be simplified to only compute one of the inverses instead of all of them: + +**Define** *ElligatorSwift(x)* as: +* Loop: + * Pick a uniformly random field element $u.$ + * Pick a uniformly random integer $c$ in $[0,8).$ + * Let $t = G_{c,u}(x).$ + * If $t \neq \bot$, return $(u, t)$; restart loop otherwise. + +This is implemented in `secp256k1_ellswift_xelligatorswift_var`. + +### 3.3 Finding the inverse + +To implement $G_{c,u}$, we map $c=0$ to the $x_1$ formula, $c=1$ to the $x_2$ formula, and $c=2$ and $c=3$ to the $x_3$ formula. +Those are then repeated as $c=4$ through $c=7$ for the other sign of $w$ (noting that in each formula, $w$ is a square root of some expression). +Ignoring the negligible cases, we get: + +**Define** $G_{c,u}(x)$ as: +* If $c \in \\{0, 1, 4, 5\\}$ (for $x_1$ and $x_2$ formulas): + * If $g(-u-x)$ is square, return $\bot$ (as $x_3$ would be valid and take precedence). + * If $c \in \\{0, 4\\}$ (the $x_1$ formula) let $v = x$, otherwise let $v = -u-x$ (the $x_2$ formula) + * Let $s = -g(u)/(u^2 + uv + v^2 + a)$ (using $s = w^2$ in what follows). +* Otherwise, when $c \in \\{2, 3, 6, 7\\}$ (for $x_3$ formulas): + * Let $s = x-u.$ + * Let $r = \sqrt{-s(4g(u) + sh(u))}.$ + * Let $v = (r/s - u)/2$ if $c \in \\{3, 7\\}$; $(-r/s - u)/2$ otherwise. +* Let $w = \sqrt{s}.$ +* Depending on $c:$ + * If $c \in \\{0, 1, 2, 3\\}:$ return $P_u^{'-1}(v, w).$ + * If $c \in \\{4, 5, 6, 7\\}:$ return $P_u^{'-1}(v, -w).$ + +Whenever a square root of a non-square is taken, $\bot$ is returned; for both square roots this happens with roughly +50% on random inputs. Similarly, when a division by 0 would occur, $\bot$ is returned as well; this will only happen +with negligible probability. A division by 0 in the first branch in fact cannot occur at all, because $u^2 + uv + v^2 + a = 0$ +implies $g(-u-x) = g(x)$ which would mean the $g(-u-x)$ is square condition has triggered +and $\bot$ would have been returned already. + +**Note**: In the paper, the $case$ variable corresponds roughly to the $c$ above, but only takes on 4 possible values (1 to 4). +The conditional negation of $w$ at the end is done randomly, which is equivalent, but makes testing harder. We choose to +have the $G_{c,u}$ be deterministic, and capture all choices in $c.$ + +Now observe that the $c \in \\{1, 5\\}$ and $c \in \\{3, 7\\}$ conditions effectively perform the same $v \rightarrow -u-v$ +transformation. Furthermore, that transformation has no effect on $s$ in the first branch +as $u^2 + ux + x^2 + a = u^2 + u(-u-x) + (-u-x)^2 + a.$ Thus we can extract it out and move it down: + +**Define** $G_{c,u}(x)$ as: +* If $c \in \\{0, 1, 4, 5\\}:$ + * If $g(-u-x)$ is square, return $\bot.$ + * Let $s = -g(u)/(u^2 + ux + x^2 + a).$ + * Let $v = x.$ +* Otherwise, when $c \in \\{2, 3, 6, 7\\}:$ + * Let $s = x-u.$ + * Let $r = \sqrt{-s(4g(u) + sh(u))}.$ + * Let $v = (r/s - u)/2.$ +* Let $w = \sqrt{s}.$ +* Depending on $c:$ + * If $c \in \\{0, 2\\}:$ return $P_u^{'-1}(v, w).$ + * If $c \in \\{1, 3\\}:$ return $P_u^{'-1}(-u-v, w).$ + * If $c \in \\{4, 6\\}:$ return $P_u^{'-1}(v, -w).$ + * If $c \in \\{5, 7\\}:$ return $P_u^{'-1}(-u-v, -w).$ + +This shows there will always be exactly 0, 4, or 8 $t$ values for a given $(u, x)$ input. +There can be 0, 1, or 2 $(v, w)$ pairs before invoking $P_u^{'-1}$, and each results in 4 distinct $t$ values. + +### 3.4 Dealing with special cases + +As mentioned before there are a few cases to deal with which only happen in a negligibly small subset of inputs. +For cryptographically sized fields, if only random inputs are going to be considered, it is unnecessary to deal with these. Still, for completeness +we analyse them here. They generally fall into two categories: cases in which the encoder would produce $t$ values that +do not decode back to $x$ (or at least cannot guarantee that they do), and cases in which the encoder might produce the same +$t$ value for multiple $c$ inputs (thereby biasing that encoding): + +* In the branch for $x_1$ and $x_2$ (where $c \in \\{0, 1, 4, 5\\}$): + * When $g(u) = 0$, we would have $s=w=Y=0$, which is not on $S_u.$ This is only possible on even-ordered curves. + Excluding this also removes the one condition under which the simplified check for $x_3$ on the curve + fails (namely when $g(x_1)=g(x_2)=0$ but $g(x_3)$ is not square). + This does exclude some valid encodings: when both $g(u)=0$ and $u^2+ux+x^2+a=0$ (also implying $g(x)=0$), + the $S_u'$ equation degenerates to $0 = 0$, and many valid $t$ values may exist. Yet, these cannot be targeted uniformly by the + encoder anyway as there will generally be more than 8. + * When $g(x) = 0$, the same $t$ would be produced as in the $x_3$ branch (where $c \in \\{2, 3, 6, 7\\}$) which we give precedence + as it can deal with $g(u)=0$. + This is again only possible on even-ordered curves. +* In the branch for $x_3$ (where $c \in \\{2, 3, 6, 7\\}$): + * When $s=0$, a division by zero would occur. + * When $v = -u-v$ and $c \in \\{3, 7\\}$, the same $t$ would be returned as in the $c \in \\{2, 6\\}$ cases. + It is equivalent to checking whether $r=0$. + This cannot occur in the $x_1$ or $x_2$ branches, as it would trigger the $g(-u-x)$ is square condition. + A similar concern for $w = -w$ does not exist, as $w=0$ is already impossible in both branches: in the first + it requires $g(u)=0$ which is already outlawed on even-ordered curves and impossible on others; in the second it would trigger division by zero. +* Curve-specific special cases also exist that need to be rejected, because they result in $(u,t)$ which is invalid to the decoder, or because of division by zero in the encoder: + * For $a=0$ curves, when $u=0$ or when $t=0$. The latter can only be reached by the encoder when $g(u)=0$, which requires an even-ordered curve. + * For $a \neq 0$ curves, when $X_0(u)=0$, when $h(u)t^2 = -1$, or when $2w(u + 2v) = 2X_0(u)$ while also either $w \neq 2Y_0(u)$ or $h(u)=0$. + +**Define** a version of $G_{c,u}(x)$ which deals with all these cases: +* If $a=0$ and $u=0$, return $\bot.$ +* If $a \neq 0$ and $X_0(u)=0$, return $\bot.$ +* If $c \in \\{0, 1, 4, 5\\}:$ + * If $g(u) = 0$ or $g(x) = 0$, return $\bot$ (even curves only). + * If $g(-u-x)$ is square, return $\bot.$ + * Let $s = -g(u)/(u^2 + ux + x^2 + a)$ (cannot cause division by zero). + * Let $v = x.$ +* Otherwise, when $c \in \\{2, 3, 6, 7\\}:$ + * Let $s = x-u.$ + * Let $r = \sqrt{-s(4g(u) + sh(u))}$; return $\bot$ if not square. + * If $c \in \\{3, 7\\}$ and $r=0$, return $\bot.$ + * If $s = 0$, return $\bot.$ + * Let $v = (r/s - u)/2.$ +* Let $w = \sqrt{s}$; return $\bot$ if not square. +* If $a \neq 0$ and $w(u+2v) = 2X_0(u)$ and either $w \neq 2Y_0(u)$ or $h(u) = 0$, return $\bot.$ +* Depending on $c:$ + * If $c \in \\{0, 2\\}$, let $t = P_u^{'-1}(v, w).$ + * If $c \in \\{1, 3\\}$, let $t = P_u^{'-1}(-u-v, w).$ + * If $c \in \\{4, 6\\}$, let $t = P_u^{'-1}(v, -w).$ + * If $c \in \\{5, 7\\}$, let $t = P_u^{'-1}(-u-v, -w).$ +* If $a=0$ and $t=0$, return $\bot$ (even curves only). +* If $a \neq 0$ and $h(u)t^2 = -1$, return $\bot.$ +* Return $t.$ + +Given any $u$, using this algorithm over all $x$ and $c$ values, every $t$ value will be reached exactly once, +for an $x$ for which $F_u(t) = x$ holds, except for these cases that will not be reached: +* All cases where $P_u(t)$ is not defined: + * For $a=0$ curves, when $u=0$, $t=0$, or $g(u) = -t^2.$ + * For $a \neq 0$ curves, when $h(u)t^2 = -1$, $X_0(u) = 0$, or $Y_0(u) (1 - h(u) t^2) = 2X_0(u)t.$ +* When $g(u)=0$, the potentially many $t$ values that decode to an $x$ satisfying $g(x)=0$ using the $x_2$ formula. These were excluded by the $g(u)=0$ condition in the $c \in \\{0, 1, 4, 5\\}$ branch. + +These cases form a negligible subset of all $(u, t)$ for cryptographically sized curves. + +### 3.5 Encoding for `secp256k1` + +Specialized for odd-ordered $a=0$ curves: + +**Define** $G_{c,u}(x)$ as: +* If $u=0$, return $\bot.$ +* If $c \in \\{0, 1, 4, 5\\}:$ + * If $(-u-x)^3 + b$ is square, return $\bot$ + * Let $s = -(u^3 + b)/(u^2 + ux + x^2)$ (cannot cause division by 0). + * Let $v = x.$ +* Otherwise, when $c \in \\{2, 3, 6, 7\\}:$ + * Let $s = x-u.$ + * Let $r = \sqrt{-s(4(u^3 + b) + 3su^2)}$; return $\bot$ if not square. + * If $c \in \\{3, 7\\}$ and $r=0$, return $\bot.$ + * If $s = 0$, return $\bot.$ + * Let $v = (r/s - u)/2.$ +* Let $w = \sqrt{s}$; return $\bot$ if not square. +* Depending on $c:$ + * If $c \in \\{0, 2\\}:$ return $w(\frac{\sqrt{-3}-1}{2}u - v).$ + * If $c \in \\{1, 3\\}:$ return $w(\frac{\sqrt{-3}+1}{2}u + v).$ + * If $c \in \\{4, 6\\}:$ return $w(\frac{-\sqrt{-3}+1}{2}u + v).$ + * If $c \in \\{5, 7\\}:$ return $w(\frac{-\sqrt{-3}-1}{2}u - v).$ + +This is implemented in `secp256k1_ellswift_xswiftec_inv_var`. + +And the x-only ElligatorSwift encoding algorithm is still: + +**Define** *ElligatorSwift(x)* as: +* Loop: + * Pick a uniformly random field element $u.$ + * Pick a uniformly random integer $c$ in $[0,8).$ + * Let $t = G_{c,u}(x).$ + * If $t \neq \bot$, return $(u, t)$; restart loop otherwise. + +Note that this logic does not take the remapped $u=0$, $t=0$, and $g(u) = -t^2$ cases into account; it just avoids them. +While it is not impossible to make the encoder target them, this would increase the maximum number of $t$ values for a given $(u, x)$ +combination beyond 8, and thereby slow down the ElligatorSwift loop proportionally, for a negligible gain in uniformity. + +## 4. Encoding and decoding full *(x, y)* coordinates + +So far we have only addressed encoding and decoding x-coordinates, but in some cases an encoding +for full points with $(x, y)$ coordinates is desirable. It is possible to encode this information +in $t$ as well. + +Note that for any $(X, Y) \in S_u$, $(\pm X, \pm Y)$ are all on $S_u.$ Moreover, all of these are +mapped to the same x-coordinate. Negating $X$ or negating $Y$ just results in $x_1$ and $x_2$ +being swapped, and does not affect $x_3.$ This will not change the outcome x-coordinate as the order +of $x_1$ and $x_2$ only matters if both were to be valid, and in that case $x_3$ would be used instead. + +Still, these four $(X, Y)$ combinations all correspond to distinct $t$ values, so we can encode +the sign of the y-coordinate in the sign of $X$ or the sign of $Y.$ They correspond to the +four distinct $P_u^{'-1}$ calls in the definition of $G_{u,c}.$ + +**Note**: In the paper, the sign of the y coordinate is encoded in a separately-coded bit. + +To encode the sign of $y$ in the sign of $Y:$ + +**Define** *Decode(u, t)* for full $(x, y)$ as: +* Let $(X, Y) = P_u(t).$ +* Let $x$ be the first value in $(u + 4Y^2, \frac{-X}{2Y} - \frac{u}{2}, \frac{X}{2Y} - \frac{u}{2})$ for which $g(x)$ is square. +* Let $y = \sqrt{g(x)}.$ +* If $sign(y) = sign(Y)$, return $(x, y)$; otherwise return $(x, -y).$ + +And encoding would be done using a $G_{c,u}(x, y)$ function defined as: + +**Define** $G_{c,u}(x, y)$ as: +* If $c \in \\{0, 1\\}:$ + * If $g(u) = 0$ or $g(x) = 0$, return $\bot$ (even curves only). + * If $g(-u-x)$ is square, return $\bot.$ + * Let $s = -g(u)/(u^2 + ux + x^2 + a)$ (cannot cause division by zero). + * Let $v = x.$ +* Otherwise, when $c \in \\{2, 3\\}:$ + * Let $s = x-u.$ + * Let $r = \sqrt{-s(4g(u) + sh(u))}$; return $\bot$ if not square. + * If $c = 3$ and $r = 0$, return $\bot.$ + * Let $v = (r/s - u)/2.$ +* Let $w = \sqrt{s}$; return $\bot$ if not square. +* Let $w' = w$ if $sign(w/2) = sign(y)$; $-w$ otherwise. +* Depending on $c:$ + * If $c \in \\{0, 2\\}:$ return $P_u^{'-1}(v, w').$ + * If $c \in \\{1, 3\\}:$ return $P_u^{'-1}(-u-v, w').$ + +Note that $c$ now only ranges $[0,4)$, as the sign of $w'$ is decided based on that of $y$, rather than on $c.$ +This change makes some valid encodings unreachable: when $y = 0$ and $sign(Y) \neq sign(0)$. + +In the above logic, $sign$ can be implemented in several ways, such as parity of the integer representation +of the input field element (for prime-sized fields) or the quadratic residuosity (for fields where +$-1$ is not square). The choice does not matter, as long as it only takes on two possible values, and for $x \neq 0$ it holds that $sign(x) \neq sign(-x)$. + +### 4.1 Full *(x, y)* coordinates for `secp256k1` + +For $a=0$ curves, there is another option. Note that for those, +the $P_u(t)$ function translates negations of $t$ to negations of (both) $X$ and $Y.$ Thus, we can use $sign(t)$ to +encode the y-coordinate directly. Combined with the earlier remapping to guarantee all inputs land on the curve, we get +as decoder: + +**Define** *Decode(u, t)* as: +* Let $u'=u$ if $u \neq 0$; $1$ otherwise. +* Let $t'=t$ if $t \neq 0$; $1$ otherwise. +* Let $t''=t'$ if $u'^3 + b + t'^2 \neq 0$; $2t'$ otherwise. +* Let $X = \dfrac{u'^3 + b - t''^2}{2t''}.$ +* Let $Y = \dfrac{X + t''}{u'\sqrt{-3}}.$ +* Let $x$ be the first element of $(u' + 4Y^2, \frac{-X}{2Y} - \frac{u'}{2}, \frac{X}{2Y} - \frac{u'}{2})$ for which $g(x)$ is square. +* Let $y = \sqrt{g(x)}.$ +* Return $(x, y)$ if $sign(y) = sign(t)$; $(x, -y)$ otherwise. + +This is implemented in `secp256k1_ellswift_swiftec_var`. The used $sign(x)$ function is the parity of $x$ when represented as in integer in $[0,q).$ + +The corresponding encoder would invoke the x-only one, but negating the output $t$ if $sign(t) \neq sign(y).$ + +This is implemented in `secp256k1_ellswift_elligatorswift_var`. + +Note that this is only intended for encoding points where both the x-coordinate and y-coordinate are unpredictable. When encoding x-only points +where the y-coordinate is implicitly even (or implicitly square, or implicitly in $[0,q/2]$), the encoder in +[Section 3.5](#35-encoding-for-secp256k1) must be used, or a bias is reintroduced that undoes all the benefit of using ElligatorSwift +in the first place. From 57791374579595bbc5d8d2e55f7fa0bc40d861a4 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 15 Jun 2023 11:49:35 +0200 Subject: [PATCH 167/557] field: Document return value of fe_sqrt() Co-authored-by: Jonas Nick --- src/field.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/field.h b/src/field.h index e632f9e3e2..e1cb7d8220 100644 --- a/src/field.h +++ b/src/field.h @@ -267,8 +267,10 @@ static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a); /** Compute a square root of a field element. * * On input, a must be a valid field element with magnitude<=8; r need not be initialized. - * Performs {r = sqrt(a)} or {r = sqrt(-a)}, whichever exists. The resulting value - * represented by r will be a square itself. Variables r and a must not point to the same object. + * If sqrt(a) exists, performs {r = sqrt(a)} and returns 1. + * Otherwise, sqrt(-a) exists. The function performs {r = sqrt(-a)} and returns 0. + * The resulting value represented by r will be a square itself. + * Variables r and a must not point to the same object. * On output, r will have magnitude 1 but will not be normalized. */ static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k1_fe * SECP256K1_RESTRICT a); From c32ffd8d8c833a964ee7fbb294640764ad25de5d Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 21 Jun 2023 10:43:12 -0400 Subject: [PATCH 168/557] Add ellswift to CHANGELOG --- CHANGELOG.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 8e31edc6ee..b7f2053ea7 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Added + - New module `ellswift` implements ElligatorSwift encoding for public keys and x-only Diffie-Hellman key exchange for them. + ElligatorSwift permits representing secp256k1 public keys as 64-byte arrays which cannot be distinguished from uniformly random. See: + - Header file `include/secp256k1_ellswift.h` which defines the new API. + - Document `doc/ellswift.md` which explains the mathematical background of the scheme. + - The [paper](https://eprint.iacr.org/2022/759) on which the scheme is based. + ## [0.3.2] - 2023-05-13 We strongly recommend updating to 0.3.2 if you use or plan to use GCC >=13 to compile libsecp256k1. When in doubt, check the GCC version using `gcc -v`. From 7c7467ab7f935f6b982064c8c48772a433da1f8f Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 23 Jun 2023 16:05:24 -0400 Subject: [PATCH 169/557] Refer to ellswift.md in API docs --- include/secp256k1_ellswift.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index 3851f93098..c0b898713c 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -41,6 +41,8 @@ extern "C" { * - The paper uses an additional encoding bit for the parity of y. Here the * parity of t is used (negating t does not affect the decoded x coordinate, * so this is possible). + * + * For mathematical background about the scheme, see the doc/ellswift.md file. */ /** A pointer to a function used by secp256k1_ellswift_xdh to hash the shared X From 67887ae65cf11d02c7055709082acd0e5d86db9b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 24 Jun 2023 20:16:01 +0100 Subject: [PATCH 170/557] Fix a typo in the error message The code has been copy-pasted from the `precompute_ecmult_gen.c` source file. --- src/precompute_ecmult.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/precompute_ecmult.c b/src/precompute_ecmult.c index 742142cf58..5ef198a770 100644 --- a/src/precompute_ecmult.c +++ b/src/precompute_ecmult.c @@ -56,11 +56,12 @@ static void print_two_tables(FILE *fp, int window_g) { int main(void) { /* Always compute all tables for window sizes up to 15. */ int window_g = (ECMULT_WINDOW_SIZE < 15) ? 15 : ECMULT_WINDOW_SIZE; + const char outfile[] = "src/precomputed_ecmult.c"; FILE* fp; - fp = fopen("src/precomputed_ecmult.c","w"); + fp = fopen(outfile, "w"); if (fp == NULL) { - fprintf(stderr, "Could not open src/precomputed_ecmult.h for writing!\n"); + fprintf(stderr, "Could not open %s for writing!\n", outfile); return -1; } From 8a7273465b3b17d6dedc67c7aac32a89a0a4dacf Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 16 May 2023 20:29:05 +0200 Subject: [PATCH 171/557] Help the compiler prove that a loop is entered --- src/ecmult_gen_compute_table_impl.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/ecmult_gen_compute_table_impl.h b/src/ecmult_gen_compute_table_impl.h index 7d672b9950..dfbacdbfde 100644 --- a/src/ecmult_gen_compute_table_impl.h +++ b/src/ecmult_gen_compute_table_impl.h @@ -22,6 +22,9 @@ static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, cons secp256k1_gej nums_gej; int i, j; + VERIFY_CHECK(g > 0); + VERIFY_CHECK(n > 0); + /* get the generator */ secp256k1_gej_set_ge(&gj, gen); From 7d8d5c86df8b27b45e80ed50341dd0ce64546c0f Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sun, 25 Jun 2023 22:14:13 +0200 Subject: [PATCH 172/557] tests: refactor: take use of `secp256k1_ge_x_on_curve_var` The recently merged ellswift PR (#1129) introduced a helper `secp256k1_ge_x_on_curve_var` to check if a given X coordinate is valid (i.e. the expression x^3 + 7 is square, see commit 79e5b2a8b80f507e2c9936ff1c4e2fb39bc66a4e). This can be used for code deduplication in the `ecmult_const_mult_xonly` test. --- src/tests.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/src/tests.c b/src/tests.c index 8ada3f869b..fd106b8fb9 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4611,17 +4611,14 @@ static void ecmult_const_mult_xonly(void) { /* Test that secp256k1_ecmult_const_xonly correctly rejects X coordinates not on curve. */ for (i = 0; i < 2*COUNT; ++i) { - secp256k1_fe x, n, d, c, r; + secp256k1_fe x, n, d, r; int res; secp256k1_scalar q; random_scalar_order_test(&q); /* Generate random X coordinate not on the curve. */ do { random_field_element_test(&x); - secp256k1_fe_sqr(&c, &x); - secp256k1_fe_mul(&c, &c, &x); - secp256k1_fe_add_int(&c, SECP256K1_B); - } while (secp256k1_fe_is_square_var(&c)); + } while (secp256k1_ge_x_on_curve_var(&x)); /* If i is odd, n=d*x for random non-zero d. */ if (i & 1) { do { From a1782098a9f0174aa7b7da431bf77c009dfeef51 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 26 Jun 2023 10:03:19 +0100 Subject: [PATCH 173/557] ci: Force DWARF v4 for Clang when Valgrind tests are expected --- ci/cirrus.sh | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/ci/cirrus.sh b/ci/cirrus.sh index 8d82818611..cb3c42194c 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -53,6 +53,22 @@ if [ -n "$WRAPPER_CMD" ]; then $WRAPPER_CMD --version fi +# Workaround for https://bugs.kde.org/show_bug.cgi?id=452758 (fixed in valgrind 3.20.0). +case "${CC:-undefined}" in + clang*) + if [ "$CTIMETESTS" = "yes" ] && [ "$WITH_VALGRIND" = "yes" ] + then + export CFLAGS="${CFLAGS:+$CFLAGS }-gdwarf-4" + else + case "$WRAPPER_CMD" in + valgrind*) + export CFLAGS="${CFLAGS:+$CFLAGS }-gdwarf-4" + ;; + esac + fi + ;; +esac + ./autogen.sh ./configure \ From c862a9fb49e885dcafb42d4e21e05a244248aab0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 26 Jun 2023 10:24:15 +0100 Subject: [PATCH 174/557] ci: Adjust Docker image to Debian 12 "bookworm" --- ci/linux-debian.Dockerfile | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 54eafcab25..0a5bd54e63 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -11,9 +11,9 @@ RUN dpkg --add-architecture i386 && \ RUN apt-get update && apt-get install --no-install-recommends -y \ git ca-certificates \ make automake libtool pkg-config dpkg-dev valgrind qemu-user \ - gcc clang llvm libc6-dbg \ + gcc clang llvm libclang-rt-dev libc6-dbg \ g++ \ - gcc-i686-linux-gnu libc6-dev-i386-cross libc6-dbg:i386 libubsan1:i386 libasan6:i386 \ + gcc-i686-linux-gnu libc6-dev-i386-cross libc6-dbg:i386 libubsan1:i386 libasan8:i386 \ gcc-s390x-linux-gnu libc6-dev-s390x-cross libc6-dbg:s390x \ gcc-arm-linux-gnueabihf libc6-dev-armhf-cross libc6-dbg:armhf \ gcc-aarch64-linux-gnu libc6-dev-arm64-cross libc6-dbg:arm64 \ @@ -26,6 +26,9 @@ WORKDIR /root # The "wine" package provides a convience wrapper that we need RUN apt-get update && apt-get install --no-install-recommends -y \ git ca-certificates wine64 wine python3-simplejson python3-six msitools winbind procps && \ +# Workaround for `wine` package failure to employ the Debian alternatives system properly. + ln -s /usr/lib/wine/wine64 /usr/bin/wine64 && \ +# Set of tools for using MSVC on Linux. git clone https://github.com/mstorsjo/msvc-wine && \ mkdir /opt/msvc && \ python3 msvc-wine/vsdownload.py --accept-license --dest /opt/msvc Microsoft.VisualStudio.Workload.VCTools && \ From 304421d57b66670428de656ae6b3272c1ab6fde5 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 26 Jun 2023 02:14:10 +0200 Subject: [PATCH 175/557] tests: refactor: remove duplicate function `random_field_element_test` There is a function `random_fe_test` which does exactly the same, so use that instead. Note that it's also moved up before the `random_group_element_test` function, in order to avoid needing a forward declaration. --- src/tests.c | 46 ++++++++++++++++++---------------------------- 1 file changed, 18 insertions(+), 28 deletions(-) diff --git a/src/tests.c b/src/tests.c index 21392d760a..958c347295 100644 --- a/src/tests.c +++ b/src/tests.c @@ -89,16 +89,6 @@ static void uncounting_illegal_callback_fn(const char* str, void* data) { (*p)--; } -static void random_field_element_test(secp256k1_fe *fe) { - do { - unsigned char b32[32]; - secp256k1_testrand256_test(b32); - if (secp256k1_fe_set_b32_limit(fe, b32)) { - break; - } - } while(1); -} - static void random_field_element_magnitude(secp256k1_fe *fe) { secp256k1_fe zero; int n = secp256k1_testrand_int(9); @@ -115,10 +105,20 @@ static void random_field_element_magnitude(secp256k1_fe *fe) { #endif } +static void random_fe_test(secp256k1_fe *x) { + unsigned char bin[32]; + do { + secp256k1_testrand256_test(bin); + if (secp256k1_fe_set_b32_limit(x, bin)) { + return; + } + } while(1); +} + static void random_group_element_test(secp256k1_ge *ge) { secp256k1_fe fe; do { - random_field_element_test(&fe); + random_fe_test(&fe); if (secp256k1_ge_set_xo_var(ge, &fe, secp256k1_testrand_bits(1))) { secp256k1_fe_normalize(&ge->y); break; @@ -130,7 +130,7 @@ static void random_group_element_test(secp256k1_ge *ge) { static void random_group_element_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { secp256k1_fe z2, z3; do { - random_field_element_test(&gej->z); + random_fe_test(&gej->z); if (!secp256k1_fe_is_zero(&gej->z)) { break; } @@ -2984,16 +2984,6 @@ static void random_fe(secp256k1_fe *x) { } while(1); } -static void random_fe_test(secp256k1_fe *x) { - unsigned char bin[32]; - do { - secp256k1_testrand256_test(bin); - if (secp256k1_fe_set_b32_limit(x, bin)) { - return; - } - } while(1); -} - static void random_fe_non_zero(secp256k1_fe *nz) { int tries = 10; while (--tries >= 0) { @@ -3821,7 +3811,7 @@ static void test_ge(void) { /* Generate random zf, and zfi2 = 1/zf^2, zfi3 = 1/zf^3 */ do { - random_field_element_test(&zf); + random_fe_test(&zf); } while(secp256k1_fe_is_zero(&zf)); random_field_element_magnitude(&zf); secp256k1_fe_inv_var(&zfi3, &zf); @@ -3830,7 +3820,7 @@ static void test_ge(void) { /* Generate random r */ do { - random_field_element_test(&r); + random_fe_test(&r); } while(secp256k1_fe_is_zero(&r)); for (i1 = 0; i1 < 1 + 4 * runs; i1++) { @@ -4148,7 +4138,7 @@ static void run_gej(void) { CHECK(!secp256k1_gej_eq_var(&a, &b)); b = a; - random_field_element_test(&fe); + random_fe_test(&fe); if (secp256k1_fe_is_zero(&fe)) { continue; } @@ -4591,7 +4581,7 @@ static void ecmult_const_mult_xonly(void) { /* If i is odd, n=d*base.x for random non-zero d */ if (i & 1) { do { - random_field_element_test(&d); + random_fe_test(&d); } while (secp256k1_fe_normalizes_to_zero_var(&d)); secp256k1_fe_mul(&n, &base.x, &d); } else { @@ -4617,12 +4607,12 @@ static void ecmult_const_mult_xonly(void) { random_scalar_order_test(&q); /* Generate random X coordinate not on the curve. */ do { - random_field_element_test(&x); + random_fe_test(&x); } while (secp256k1_ge_x_on_curve_var(&x)); /* If i is odd, n=d*x for random non-zero d. */ if (i & 1) { do { - random_field_element_test(&d); + random_fe_test(&d); } while (secp256k1_fe_normalizes_to_zero_var(&d)); secp256k1_fe_mul(&n, &x, &d); } else { From 5a95a268b944ffe64b7857e58f5b3b44aba514da Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 26 Jun 2023 02:42:06 +0200 Subject: [PATCH 176/557] tests: introduce helper for non-zero `random_fe_test` results There are several instances in the tests where random non-zero field elements are generated by calling `random_fe_test` in a do/while-loop. This commit deduplicates all these by introducing a `random_fe_non_zero_test` helper. Note that some instances checked the is-zero condition via `secp256k1_fe_normalizes_to_zero_var`, which is unnecessary, as the result of `random_fe_test` is already normalized (so strictly speaking, this is not a pure refactor). --- src/tests.c | 34 ++++++++++++---------------------- 1 file changed, 12 insertions(+), 22 deletions(-) diff --git a/src/tests.c b/src/tests.c index 958c347295..7b38d7906a 100644 --- a/src/tests.c +++ b/src/tests.c @@ -115,6 +115,12 @@ static void random_fe_test(secp256k1_fe *x) { } while(1); } +static void random_fe_non_zero_test(secp256k1_fe *fe) { + do { + random_fe_test(fe); + } while(secp256k1_fe_is_zero(fe)); +} + static void random_group_element_test(secp256k1_ge *ge) { secp256k1_fe fe; do { @@ -129,12 +135,7 @@ static void random_group_element_test(secp256k1_ge *ge) { static void random_group_element_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { secp256k1_fe z2, z3; - do { - random_fe_test(&gej->z); - if (!secp256k1_fe_is_zero(&gej->z)) { - break; - } - } while(1); + random_fe_non_zero_test(&gej->z); secp256k1_fe_sqr(&z2, &gej->z); secp256k1_fe_mul(&z3, &z2, &gej->z); secp256k1_fe_mul(&gej->x, &ge->x, &z2); @@ -3810,18 +3811,14 @@ static void test_ge(void) { } /* Generate random zf, and zfi2 = 1/zf^2, zfi3 = 1/zf^3 */ - do { - random_fe_test(&zf); - } while(secp256k1_fe_is_zero(&zf)); + random_fe_non_zero_test(&zf); random_field_element_magnitude(&zf); secp256k1_fe_inv_var(&zfi3, &zf); secp256k1_fe_sqr(&zfi2, &zfi3); secp256k1_fe_mul(&zfi3, &zfi3, &zfi2); /* Generate random r */ - do { - random_fe_test(&r); - } while(secp256k1_fe_is_zero(&r)); + random_fe_non_zero_test(&r); for (i1 = 0; i1 < 1 + 4 * runs; i1++) { int i2; @@ -4138,10 +4135,7 @@ static void run_gej(void) { CHECK(!secp256k1_gej_eq_var(&a, &b)); b = a; - random_fe_test(&fe); - if (secp256k1_fe_is_zero(&fe)) { - continue; - } + random_fe_non_zero_test(&fe); secp256k1_gej_rescale(&a, &fe); CHECK(secp256k1_gej_eq_var(&a, &b)); } @@ -4580,9 +4574,7 @@ static void ecmult_const_mult_xonly(void) { random_scalar_order_test(&q); /* If i is odd, n=d*base.x for random non-zero d */ if (i & 1) { - do { - random_fe_test(&d); - } while (secp256k1_fe_normalizes_to_zero_var(&d)); + random_fe_non_zero_test(&d); secp256k1_fe_mul(&n, &base.x, &d); } else { n = base.x; @@ -4611,9 +4603,7 @@ static void ecmult_const_mult_xonly(void) { } while (secp256k1_ge_x_on_curve_var(&x)); /* If i is odd, n=d*x for random non-zero d. */ if (i & 1) { - do { - random_fe_test(&d); - } while (secp256k1_fe_normalizes_to_zero_var(&d)); + random_fe_non_zero_test(&d); secp256k1_fe_mul(&n, &x, &d); } else { n = x; From a6ca76cdf2a3d0aef091e3d26d7c6c8ee9c88e72 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 28 Jun 2023 07:45:57 +0100 Subject: [PATCH 177/557] Avoid `-Wmaybe-uninitialized` when compiling with `gcc -O1` --- src/ecmult_impl.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index f4624677d7..6d14c7ac4b 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -288,7 +288,9 @@ static void secp256k1_ecmult_strauss_wnaf(const struct secp256k1_strauss_state * } /* Bring them to the same Z denominator. */ - secp256k1_ge_table_set_globalz(ECMULT_TABLE_SIZE(WINDOW_A) * no, state->pre_a, state->aux); + if (no) { + secp256k1_ge_table_set_globalz(ECMULT_TABLE_SIZE(WINDOW_A) * no, state->pre_a, state->aux); + } for (np = 0; np < no; ++np) { for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) { From 5b9f37f136620b9c61cd66439904b2db266fba70 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 28 Jun 2023 07:46:40 +0100 Subject: [PATCH 178/557] ci: Add `CFLAGS: -O1` to task matrix --- .cirrus.yml | 1 + 1 file changed, 1 insertion(+) diff --git a/.cirrus.yml b/.cirrus.yml index 5a00b65a33..a28b747ed0 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -86,6 +86,7 @@ task: - env: {BUILD: distcheck, WITH_VALGRIND: no, CTIMETESTS: no, BENCH: no} - env: {CPPFLAGS: -DDETERMINISTIC} - env: {CFLAGS: -O0, CTIMETESTS: no} + - env: {CFLAGS: -O1, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - env: { ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } - env: { ECMULTGENPRECISION: 8, ECMULTWINDOW: 4 } matrix: From 98579e297b19bbb23c924f21942eccdbd618de67 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 1 Jul 2023 10:47:40 +0200 Subject: [PATCH 179/557] ci: Drop manual checkout of merge commit This is no longer necessary as of https://github.com/cirruslabs/cirrus-ci-docs/issues/791#issuecomment-1615691585 . --- .cirrus.yml | 20 -------------------- ci/cirrus.sh | 3 ++- 2 files changed, 2 insertions(+), 21 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 5a00b65a33..b449bff12d 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -54,12 +54,6 @@ cat_logs_snippet: &CAT_LOGS cat_ci_env_script: - env -merge_base_script_snippet: &MERGE_BASE - merge_base_script: - - if [ "$CIRRUS_PR" = "" ]; then exit 0; fi - - git fetch --depth=1 $CIRRUS_REPO_CLONE_URL "pull/${CIRRUS_PR}/merge" - - git checkout FETCH_HEAD # Use merged changes to detect silent merge conflicts - linux_container_snippet: &LINUX_CONTAINER container: dockerfile: ci/linux-debian.Dockerfile @@ -93,7 +87,6 @@ task: CC: gcc - env: CC: clang - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -111,7 +104,6 @@ task: CC: i686-linux-gnu-gcc - env: CC: clang --target=i686-pc-linux-gnu -isystem /usr/i686-linux-gnu/include - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -138,7 +130,6 @@ task: CC: clang brew_script: - brew install automake libtool gcc - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -157,7 +148,6 @@ task: SCHNORRSIG: yes ELLSWIFT: yes CTIMETESTS: no - << : *MERGE_BASE test_script: # https://sourceware.org/bugzilla/show_bug.cgi?id=27008 - rm /etc/ld.so.cache @@ -180,7 +170,6 @@ task: matrix: - env: {} - env: {EXPERIMENTAL: yes, ASM: arm32} - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -198,7 +187,6 @@ task: SCHNORRSIG: yes ELLSWIFT: yes CTIMETESTS: no - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -216,7 +204,6 @@ task: SCHNORRSIG: yes ELLSWIFT: yes CTIMETESTS: no - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -237,7 +224,6 @@ task: - name: "i686 (mingw32-w64): Windows (Debian stable, Wine)" env: HOST: i686-w64-mingw32 - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -280,7 +266,6 @@ task: CC: /opt/msvc/bin/x86/cl AR: /opt/msvc/bin/x86/lib NM: /opt/msvc/bin/x86/dumpbin -symbols -headers - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -325,7 +310,6 @@ task: - env: HOST: i686-linux-gnu CC: i686-linux-gnu-gcc - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -352,7 +336,6 @@ task: ECMULTGENPRECISION: 2 ECMULTWINDOW: 2 CFLAGS: "-fsanitize=memory -g -O3" - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -369,7 +352,6 @@ task: RECOVERY: yes SCHNORRSIG: yes ELLSWIFT: yes - << : *MERGE_BASE test_script: - ./ci/cirrus.sh << : *CAT_LOGS @@ -401,8 +383,6 @@ task: # Ignore MSBuild warning MSB8029. # See: https://learn.microsoft.com/en-us/visualstudio/msbuild/errors/msb8029?view=vs-2022 IgnoreWarnIntDirInTempDetected: 'true' - merge_script: - - PowerShell -NoLogo -Command if ($env:CIRRUS_PR -ne $null) { git fetch $env:CIRRUS_REPO_CLONE_URL pull/$env:CIRRUS_PR/merge; git reset --hard FETCH_HEAD; } configure_script: - '%x64_NATIVE_TOOLS%' - cmake -E env CFLAGS="/WX" cmake -G "Visual Studio 17 2022" -A x64 -S . -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON diff --git a/ci/cirrus.sh b/ci/cirrus.sh index cb3c42194c..48a9783cc4 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -4,7 +4,8 @@ set -eux export LC_ALL=C -# Print relevant CI environment to allow reproducing the job outside of CI. +# Print commit and relevant CI environment to allow reproducing the job outside of CI. +git show --no-patch print_environment() { # Turn off -x because it messes up the output set +x From a7bec34231b991ad0e1f686f6505a81749a2a8c7 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 3 Jul 2023 09:31:49 +0100 Subject: [PATCH 180/557] ci: Print commit in Windows container This change adds the same functionality to Windows containers that is already available in Linux containers. --- .cirrus.yml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/.cirrus.yml b/.cirrus.yml index b449bff12d..cec5ad8fff 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -383,6 +383,9 @@ task: # Ignore MSBuild warning MSB8029. # See: https://learn.microsoft.com/en-us/visualstudio/msbuild/errors/msb8029?view=vs-2022 IgnoreWarnIntDirInTempDetected: 'true' + git_show_script: + # Print commit to allow reproducing the job outside of CI. + - git show --no-patch configure_script: - '%x64_NATIVE_TOOLS%' - cmake -E env CFLAGS="/WX" cmake -G "Visual Studio 17 2022" -A x64 -S . -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON From ae9db95ceaa2605138fac9c237c640acea3f3bd6 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 30 Jun 2023 09:26:48 +0100 Subject: [PATCH 181/557] build: Introduce `SECP256K1_STATIC` macro for Windows users It is a non-Libtool-specific way to explicitly specify the user's intention to consume a static `libseck256k1`. This change allows to get rid of MSVC linker warnings LNK4217 and LNK4286. Also, it makes possible to merge the `SECP256K1_API` and `SECP256K1_API_VAR` into one. --- CHANGELOG.md | 3 +++ Makefile.am | 6 +++--- configure.ac | 6 ------ examples/CMakeLists.txt | 3 --- include/secp256k1.h | 8 ++++---- src/CMakeLists.txt | 1 + 6 files changed, 11 insertions(+), 16 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index b7f2053ea7..dacb0a3f48 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -14,6 +14,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - Document `doc/ellswift.md` which explains the mathematical background of the scheme. - The [paper](https://eprint.iacr.org/2022/759) on which the scheme is based. +#### Changed + - When consuming libsecp256k1 as a static library on Windows, the user must now define the `SECP256K1_STATIC` macro before including `secp256k1.h`. + ## [0.3.2] - 2023-05-13 We strongly recommend updating to 0.3.2 if you use or plan to use GCC >=13 to compile libsecp256k1. When in doubt, check the GCC version using `gcc -v`. diff --git a/Makefile.am b/Makefile.am index ee14ac4509..32bc729a41 100644 --- a/Makefile.am +++ b/Makefile.am @@ -153,7 +153,7 @@ endif if USE_EXAMPLES noinst_PROGRAMS += ecdsa_example ecdsa_example_SOURCES = examples/ecdsa.c -ecdsa_example_CPPFLAGS = -I$(top_srcdir)/include +ecdsa_example_CPPFLAGS = -I$(top_srcdir)/include -DSECP256K1_STATIC ecdsa_example_LDADD = libsecp256k1.la ecdsa_example_LDFLAGS = -static if BUILD_WINDOWS @@ -163,7 +163,7 @@ TESTS += ecdsa_example if ENABLE_MODULE_ECDH noinst_PROGRAMS += ecdh_example ecdh_example_SOURCES = examples/ecdh.c -ecdh_example_CPPFLAGS = -I$(top_srcdir)/include +ecdh_example_CPPFLAGS = -I$(top_srcdir)/include -DSECP256K1_STATIC ecdh_example_LDADD = libsecp256k1.la ecdh_example_LDFLAGS = -static if BUILD_WINDOWS @@ -174,7 +174,7 @@ endif if ENABLE_MODULE_SCHNORRSIG noinst_PROGRAMS += schnorr_example schnorr_example_SOURCES = examples/schnorr.c -schnorr_example_CPPFLAGS = -I$(top_srcdir)/include +schnorr_example_CPPFLAGS = -I$(top_srcdir)/include -DSECP256K1_STATIC schnorr_example_LDADD = libsecp256k1.la schnorr_example_LDFLAGS = -static if BUILD_WINDOWS diff --git a/configure.ac b/configure.ac index 82cf95132d..a502d1304a 100644 --- a/configure.ac +++ b/configure.ac @@ -127,12 +127,6 @@ AC_DEFUN([SECP_TRY_APPEND_DEFAULT_CFLAGS], [ SECP_TRY_APPEND_CFLAGS([-wd4267], $1) # Disable warning C4267 "'var' : conversion from 'size_t' to 'type', possible loss of data". # Eliminate deprecation warnings for the older, less secure functions. CPPFLAGS="-D_CRT_SECURE_NO_WARNINGS $CPPFLAGS" - # We pass -ignore:4217 to the MSVC linker to suppress warning 4217 when - # importing variables from a statically linked secp256k1. - # (See the libtool manual, section "Windows DLLs" for background.) - # Unfortunately, libtool tries to be too clever and strips "-Xlinker arg" - # into "arg", so this will be " -Xlinker -ignore:4217" after stripping. - LDFLAGS="-Xlinker -Xlinker -Xlinker -ignore:4217 $LDFLAGS" fi ]) SECP_TRY_APPEND_DEFAULT_CFLAGS(SECP_CFLAGS) diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index e095b7f84f..e2ea473008 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -6,9 +6,6 @@ target_link_libraries(example INTERFACE secp256k1 $<$:bcrypt> ) -if(NOT BUILD_SHARED_LIBS AND MSVC) - target_link_options(example INTERFACE /IGNORE:4217) -endif() add_executable(ecdsa_example ecdsa.c) target_link_libraries(ecdsa_example example) diff --git a/include/secp256k1.h b/include/secp256k1.h index 01d18cff09..4429bd34b5 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -141,10 +141,10 @@ typedef int (*secp256k1_nonce_function)( # define SECP256K1_API __declspec (dllexport) # define SECP256K1_API_VAR extern __declspec (dllexport) # endif -# elif defined _MSC_VER -# define SECP256K1_API -# define SECP256K1_API_VAR extern __declspec (dllimport) -# elif defined DLL_EXPORT + /* The user must define SECP256K1_STATIC when consuming libsecp256k1 as a static + * library on Windows. */ +# elif !defined(SECP256K1_STATIC) + /* Consuming libsecp256k1 as a DLL. */ # define SECP256K1_API __declspec (dllimport) # define SECP256K1_API_VAR extern __declspec (dllimport) # endif diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 0bba19982a..fd7c48fcf1 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -24,6 +24,7 @@ endif() # This matches libtool's usage of DLL_EXPORT if(WIN32) set_target_properties(secp256k1 PROPERTIES DEFINE_SYMBOL "DLL_EXPORT") + target_compile_definitions(secp256k1 INTERFACE $<$>:SECP256K1_STATIC>) endif() # Object libs don't know if they're being built for a shared or static lib. From 9f1b1904a358e4ce7248c6542e8c7ac143ba0e3f Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 29 Jun 2023 17:07:50 +0100 Subject: [PATCH 182/557] refactor: Replace `SECP256K1_API_VAR` with `SECP256K1_API` --- include/secp256k1.h | 20 ++++++++------------ include/secp256k1_ecdh.h | 4 ++-- include/secp256k1_ellswift.h | 4 ++-- include/secp256k1_schnorrsig.h | 2 +- 4 files changed, 13 insertions(+), 17 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 4429bd34b5..9370906c31 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -138,24 +138,20 @@ typedef int (*secp256k1_nonce_function)( #if defined(_WIN32) # ifdef SECP256K1_BUILD # ifdef DLL_EXPORT -# define SECP256K1_API __declspec (dllexport) -# define SECP256K1_API_VAR extern __declspec (dllexport) +# define SECP256K1_API extern __declspec (dllexport) # endif /* The user must define SECP256K1_STATIC when consuming libsecp256k1 as a static * library on Windows. */ # elif !defined(SECP256K1_STATIC) /* Consuming libsecp256k1 as a DLL. */ -# define SECP256K1_API __declspec (dllimport) -# define SECP256K1_API_VAR extern __declspec (dllimport) +# define SECP256K1_API extern __declspec (dllimport) # endif #endif #ifndef SECP256K1_API # if defined(__GNUC__) && (__GNUC__ >= 4) && defined(SECP256K1_BUILD) -# define SECP256K1_API __attribute__ ((visibility ("default"))) -# define SECP256K1_API_VAR extern __attribute__ ((visibility ("default"))) +# define SECP256K1_API extern __attribute__ ((visibility ("default"))) # else -# define SECP256K1_API -# define SECP256K1_API_VAR extern +# define SECP256K1_API extern # endif #endif @@ -227,10 +223,10 @@ typedef int (*secp256k1_nonce_function)( * * It is highly recommended to call secp256k1_selftest before using this context. */ -SECP256K1_API_VAR const secp256k1_context *secp256k1_context_static; +SECP256K1_API const secp256k1_context *secp256k1_context_static; /** Deprecated alias for secp256k1_context_static. */ -SECP256K1_API_VAR const secp256k1_context *secp256k1_context_no_precomp +SECP256K1_API const secp256k1_context *secp256k1_context_no_precomp SECP256K1_DEPRECATED("Use secp256k1_context_static instead"); /** Perform basic self tests (to be used in conjunction with secp256k1_context_static) @@ -627,10 +623,10 @@ SECP256K1_API int secp256k1_ecdsa_signature_normalize( * If a data pointer is passed, it is assumed to be a pointer to 32 bytes of * extra entropy. */ -SECP256K1_API_VAR const secp256k1_nonce_function secp256k1_nonce_function_rfc6979; +SECP256K1_API const secp256k1_nonce_function secp256k1_nonce_function_rfc6979; /** A default safe nonce generation function (currently equal to secp256k1_nonce_function_rfc6979). */ -SECP256K1_API_VAR const secp256k1_nonce_function secp256k1_nonce_function_default; +SECP256K1_API const secp256k1_nonce_function secp256k1_nonce_function_default; /** Create an ECDSA signature. * diff --git a/include/secp256k1_ecdh.h b/include/secp256k1_ecdh.h index 837ae2abe5..515e174299 100644 --- a/include/secp256k1_ecdh.h +++ b/include/secp256k1_ecdh.h @@ -27,11 +27,11 @@ typedef int (*secp256k1_ecdh_hash_function)( /** An implementation of SHA256 hash function that applies to compressed public key. * Populates the output parameter with 32 bytes. */ -SECP256K1_API_VAR const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_sha256; +SECP256K1_API const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_sha256; /** A default ECDH hash function (currently equal to secp256k1_ecdh_hash_function_sha256). * Populates the output parameter with 32 bytes. */ -SECP256K1_API_VAR const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_default; +SECP256K1_API const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_default; /** Compute an EC Diffie-Hellman secret in constant time * diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index c0b898713c..2b7e403c49 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -72,7 +72,7 @@ typedef int (*secp256k1_ellswift_xdh_hash_function)( /** An implementation of an secp256k1_ellswift_xdh_hash_function which uses * SHA256(prefix64 || ell_a64 || ell_b64 || x32), where prefix64 is the 64-byte * array pointed to by data. */ -SECP256K1_API_VAR const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_prefix; +SECP256K1_API const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_prefix; /** An implementation of an secp256k1_ellswift_xdh_hash_function compatible with * BIP324. It returns H_tag(ell_a64 || ell_b64 || x32), where H_tag is the @@ -80,7 +80,7 @@ SECP256K1_API_VAR const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_ * to secp256k1_ellswift_xdh_hash_function_prefix with prefix64 set to * SHA256("bip324_ellswift_xonly_ecdh")||SHA256("bip324_ellswift_xonly_ecdh"). * The data argument is ignored. */ -SECP256K1_API_VAR const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_bip324; +SECP256K1_API const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_hash_function_bip324; /** Construct a 64-byte ElligatorSwift encoding of a given pubkey. * diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h index 1ee665fd19..26358533f6 100644 --- a/include/secp256k1_schnorrsig.h +++ b/include/secp256k1_schnorrsig.h @@ -61,7 +61,7 @@ typedef int (*secp256k1_nonce_function_hardened)( * Therefore, to create BIP-340 compliant signatures, algo must be set to * "BIP0340/nonce" and algolen to 13. */ -SECP256K1_API_VAR const secp256k1_nonce_function_hardened secp256k1_nonce_function_bip340; +SECP256K1_API const secp256k1_nonce_function_hardened secp256k1_nonce_function_bip340; /** Data structure that contains additional arguments for schnorrsig_sign_custom. * From 0196e8ade16e2b2d8efadac01d8520205553ee39 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 29 Jun 2023 17:14:03 +0100 Subject: [PATCH 183/557] build: Introduce `SECP256k1_DLL_EXPORT` macro This change provides a way to build a shared library that is not tired to the Libtool-specific `DLL_EXPORT` macro. --- include/secp256k1.h | 8 +++++--- src/CMakeLists.txt | 5 ++--- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 9370906c31..88b68df7b0 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -134,10 +134,12 @@ typedef int (*secp256k1_nonce_function)( #endif /* Symbol visibility. See https://gcc.gnu.org/wiki/Visibility */ -/* DLL_EXPORT is defined internally for shared builds */ #if defined(_WIN32) -# ifdef SECP256K1_BUILD -# ifdef DLL_EXPORT +# if defined(SECP256K1_BUILD) +# if defined(DLL_EXPORT) || defined(SECP256K1_DLL_EXPORT) + /* Building libsecp256k1 as a DLL. + * 1. If using Libtool, it defines DLL_EXPORT automatically. + * 2. In other cases, SECP256K1_DLL_EXPORT must be defined. */ # define SECP256K1_API extern __declspec (dllexport) # endif /* The user must define SECP256K1_STATIC when consuming libsecp256k1 as a static diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index fd7c48fcf1..b305751b08 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -20,10 +20,9 @@ if(SECP256K1_ASM STREQUAL "arm32") target_link_libraries(secp256k1_asm INTERFACE secp256k1_asm_arm) endif() -# Define our export symbol only for Win32 and only for shared libs. -# This matches libtool's usage of DLL_EXPORT if(WIN32) - set_target_properties(secp256k1 PROPERTIES DEFINE_SYMBOL "DLL_EXPORT") + # Define our export symbol only for shared libs. + set_target_properties(secp256k1 PROPERTIES DEFINE_SYMBOL SECP256K1_DLL_EXPORT) target_compile_definitions(secp256k1 INTERFACE $<$>:SECP256K1_STATIC>) endif() From 020bf69a44ba700624d09de0c18ceb867369d24e Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 27 Jun 2023 15:22:44 +0200 Subject: [PATCH 184/557] build: Add extensive docs on visibility issues --- include/secp256k1.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 88b68df7b0..ce2145ae3d 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -133,8 +133,14 @@ typedef int (*secp256k1_nonce_function)( # define SECP256K1_NO_BUILD #endif -/* Symbol visibility. See https://gcc.gnu.org/wiki/Visibility */ +/* Symbol visibility. */ #if defined(_WIN32) + /* GCC for Windows (e.g., MinGW) accepts the __declspec syntax + * for MSVC compatibility. A __declspec declaration implies (but is not + * exactly equivalent to) __attribute__ ((visibility("default"))), and so we + * actually want __declspec even on GCC, see "Microsoft Windows Function + * Attributes" in the GCC manual and the recommendations in + * https://gcc.gnu.org/wiki/Visibility. */ # if defined(SECP256K1_BUILD) # if defined(DLL_EXPORT) || defined(SECP256K1_DLL_EXPORT) /* Building libsecp256k1 as a DLL. @@ -151,8 +157,10 @@ typedef int (*secp256k1_nonce_function)( #endif #ifndef SECP256K1_API # if defined(__GNUC__) && (__GNUC__ >= 4) && defined(SECP256K1_BUILD) + /* Building libsecp256k1 on non-Windows using GCC or compatible. */ # define SECP256K1_API extern __attribute__ ((visibility ("default"))) # else + /* All cases not captured above. */ # define SECP256K1_API extern # endif #endif From c6cd2b15a007ad0a2d5c4656ae641ba442d8b2fe Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 30 Jun 2023 09:32:57 +0100 Subject: [PATCH 185/557] ci: Add task for static library on Windows + CMake --- .cirrus.yml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/.cirrus.yml b/.cirrus.yml index cec5ad8fff..835b6b227d 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -383,12 +383,17 @@ task: # Ignore MSBuild warning MSB8029. # See: https://learn.microsoft.com/en-us/visualstudio/msbuild/errors/msb8029?view=vs-2022 IgnoreWarnIntDirInTempDetected: 'true' + matrix: + - env: + BUILD_SHARED_LIBS: ON + - env: + BUILD_SHARED_LIBS: OFF git_show_script: # Print commit to allow reproducing the job outside of CI. - git show --no-patch configure_script: - '%x64_NATIVE_TOOLS%' - - cmake -E env CFLAGS="/WX" cmake -G "Visual Studio 17 2022" -A x64 -S . -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON + - cmake -E env CFLAGS="/WX" cmake -A x64 -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON -DBUILD_SHARED_LIBS=%BUILD_SHARED_LIBS% build_script: - '%x64_NATIVE_TOOLS%' - cmake --build build --config RelWithDebInfo -- -property:UseMultiToolTask=true;CL_MPcount=5 From 07c0e8b82e2cea87f85263512945fed7adffea18 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Wed, 14 Jun 2023 17:15:46 +0200 Subject: [PATCH 186/557] group: remove unneeded normalize_weak in `secp256k1_gej_eq_x_var` By requiring that the input group element's X coordinate (`a->x`) has a magnitude of <= 31, the normalize_weak call and also the field element variable `r2` are not needed anymore and hence can be dropped. --- src/group.h | 3 ++- src/group_impl.h | 10 +++++++--- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/src/group.h b/src/group.h index 77ad7435f8..85c40b8b18 100644 --- a/src/group.h +++ b/src/group.h @@ -100,7 +100,8 @@ static void secp256k1_gej_set_ge(secp256k1_gej *r, const secp256k1_ge *a); /** Check two group elements (jacobian) for equality in variable time. */ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b); -/** Compare the X coordinate of a group element (jacobian). */ +/** Compare the X coordinate of a group element (jacobian). + * The magnitude of the group element's X coordinate must not exceed 31. */ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a); /** Set r equal to the inverse of a (i.e., mirrored around the X axis) */ diff --git a/src/group_impl.h b/src/group_impl.h index 83a45c2d33..1176c7f2f8 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -314,13 +314,17 @@ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) } static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) { - secp256k1_fe r, r2; + secp256k1_fe r; + +#ifdef VERIFY secp256k1_fe_verify(x); + VERIFY_CHECK(a->x.magnitude <= 31); secp256k1_gej_verify(a); VERIFY_CHECK(!a->infinity); +#endif + secp256k1_fe_sqr(&r, &a->z); secp256k1_fe_mul(&r, &r, x); - r2 = a->x; secp256k1_fe_normalize_weak(&r2); - return secp256k1_fe_equal_var(&r, &r2); + return secp256k1_fe_equal_var(&r, &a->x); } static void secp256k1_gej_neg(secp256k1_gej *r, const secp256k1_gej *a) { From b6b9834e8da7f3fd91b95f750a4ee7a10bf67435 Mon Sep 17 00:00:00 2001 From: Alejandro Date: Mon, 3 Jul 2023 15:21:21 +0200 Subject: [PATCH 187/557] small fixes restoring wycheproof files restoring wycheproof files2 --- examples/examples_util.h | 2 +- include/secp256k1_ellswift.h | 2 +- sage/group_prover.sage | 2 +- src/ecmult.h | 2 +- src/ecmult_const_impl.h | 2 +- src/field.h | 4 ++-- 6 files changed, 7 insertions(+), 7 deletions(-) diff --git a/examples/examples_util.h b/examples/examples_util.h index 8e3a8f00cf..3293b64032 100644 --- a/examples/examples_util.h +++ b/examples/examples_util.h @@ -95,7 +95,7 @@ static void secure_erase(void *ptr, size_t len) { * As best as we can tell, this is sufficient to break any optimisations that * might try to eliminate "superfluous" memsets. * This method used in memzero_explicit() the Linux kernel, too. Its advantage is that it is - * pretty efficient, because the compiler can still implement the memset() efficently, + * pretty efficient, because the compiler can still implement the memset() efficiently, * just not remove it entirely. See "Dead Store Elimination (Still) Considered Harmful" by * Yang et al. (USENIX Security 2017) for more background. */ diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index c0b898713c..fafd01affb 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -161,7 +161,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ellswift_create( /** Given a private key, and ElligatorSwift public keys sent in both directions, * compute a shared secret using x-only Elliptic Curve Diffie-Hellman (ECDH). * - * Returns: 1: shared secret was succesfully computed + * Returns: 1: shared secret was successfully computed * 0: secret was invalid or hashfp returned 0 * Args: ctx: pointer to a context object. * Out: output: pointer to an array to be filled by hashfp. diff --git a/sage/group_prover.sage b/sage/group_prover.sage index 9305c215d5..bb09295369 100644 --- a/sage/group_prover.sage +++ b/sage/group_prover.sage @@ -198,7 +198,7 @@ def normalize_factor(p): (8) * (-bx + ax)^3 ``` """ - # Assert p is not 0 and that its non-zero coeffients are coprime. + # Assert p is not 0 and that its non-zero coefficients are coprime. # (We could just work with the primitive part p/p.content() but we want to be # aware if factor() does not return a primitive part in future sage versions.) assert p.content() == 1 diff --git a/src/ecmult.h b/src/ecmult.h index e28c602506..326a5eeb43 100644 --- a/src/ecmult.h +++ b/src/ecmult.h @@ -22,7 +22,7 @@ # pragma message DEBUG_CONFIG_DEF(ECMULT_WINDOW_SIZE) #endif -/* Noone will ever need more than a window size of 24. The code might +/* No one will ever need more than a window size of 24. The code might * be correct for larger values of ECMULT_WINDOW_SIZE but this is not * tested. * diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index 26b3e238d8..06f9e53ffd 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -276,7 +276,7 @@ static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, * * It is easy to verify that both (n*g, g^2, v) and its negation (n*g, -g^2, v) have affine X * coordinate n/d, and this holds even when the square root function doesn't have a - * determinstic sign. We choose the (n*g, g^2, v) version. + * deterministic sign. We choose the (n*g, g^2, v) version. * * Now switch to the effective affine curve using phi_v, where the input point has coordinates * (n*g, g^2). Compute (X, Y, Z) = q * (n*g, g^2) there. diff --git a/src/field.h b/src/field.h index 38e7389aba..bb99f948ef 100644 --- a/src/field.h +++ b/src/field.h @@ -192,14 +192,14 @@ static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); /** Set a field element equal to a provided 32-byte big endian value, reducing it. * - * On input, r does not need to be initalized. a must be a pointer to an initialized 32-byte array. + * On input, r does not need to be initialized. a must be a pointer to an initialized 32-byte array. * On output, r = a (mod p). It will have magnitude 1, and not be normalized. */ static void secp256k1_fe_set_b32_mod(secp256k1_fe *r, const unsigned char *a); /** Set a field element equal to a provided 32-byte big endian value, checking for overflow. * - * On input, r does not need to be initalized. a must be a pointer to an initialized 32-byte array. + * On input, r does not need to be initialized. a must be a pointer to an initialized 32-byte array. * On output, r = a if (a < p), it will be normalized with magnitude 1, and 1 is returned. * If a >= p, 0 is returned, and r will be made invalid (and must not be used without overwriting). */ From c7d900ffd18e88076920d4cd13fcdca210acd903 Mon Sep 17 00:00:00 2001 From: stratospher <44024636+stratospher@users.noreply.github.com> Date: Wed, 28 Jun 2023 01:30:27 +0530 Subject: [PATCH 188/557] doc: minor ellswift.md updates --- doc/ellswift.md | 4 ++-- include/secp256k1_ellswift.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/doc/ellswift.md b/doc/ellswift.md index 7fbb7c1787..9d60e6be0b 100644 --- a/doc/ellswift.md +++ b/doc/ellswift.md @@ -88,7 +88,7 @@ $$ \begin{array}{lcl} X(u, t) & = & \left\\{\begin{array}{ll} \dfrac{g(u) - t^2}{2t} & a = 0 \\ - \dfrac{g(u) + h(u)(Y_0(u) + X_0(u)t)^2}{X_0(u)(1 + h(u)t^2)} & a \neq 0 + \dfrac{g(u) + h(u)(Y_0(u) - X_0(u)t)^2}{X_0(u)(1 + h(u)t^2)} & a \neq 0 \end{array}\right. \\ Y(u, t) & = & \left\\{\begin{array}{ll} \dfrac{X(u, t) + t}{u \sqrt{-3}} = \dfrac{g(u) + t^2}{2tu\sqrt{-3}} & a = 0 \\ @@ -329,7 +329,7 @@ $t$ value for multiple $c$ inputs (thereby biasing that encoding): it requires $g(u)=0$ which is already outlawed on even-ordered curves and impossible on others; in the second it would trigger division by zero. * Curve-specific special cases also exist that need to be rejected, because they result in $(u,t)$ which is invalid to the decoder, or because of division by zero in the encoder: * For $a=0$ curves, when $u=0$ or when $t=0$. The latter can only be reached by the encoder when $g(u)=0$, which requires an even-ordered curve. - * For $a \neq 0$ curves, when $X_0(u)=0$, when $h(u)t^2 = -1$, or when $2w(u + 2v) = 2X_0(u)$ while also either $w \neq 2Y_0(u)$ or $h(u)=0$. + * For $a \neq 0$ curves, when $X_0(u)=0$, when $h(u)t^2 = -1$, or when $w(u + 2v) = 2X_0(u)$ while also either $w \neq 2Y_0(u)$ or $h(u)=0$. **Define** a version of $G_{c,u}(x)$ which deals with all these cases: * If $a=0$ and $u=0$, return $\bot.$ diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index c0b898713c..fafd01affb 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -161,7 +161,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ellswift_create( /** Given a private key, and ElligatorSwift public keys sent in both directions, * compute a shared secret using x-only Elliptic Curve Diffie-Hellman (ECDH). * - * Returns: 1: shared secret was succesfully computed + * Returns: 1: shared secret was successfully computed * 0: secret was invalid or hashfp returned 0 * Args: ctx: pointer to a context object. * Out: output: pointer to an array to be filled by hashfp. From 2792119278bcb2a0befce3fbc64c83578df54953 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Tue, 4 Jul 2023 02:50:05 +0200 Subject: [PATCH 189/557] Add exhaustive test for ellswift (create+decode roundtrip) Co-authored-by: Pieter Wuille Co-authored-by: Tim Ruffing --- src/modules/ellswift/Makefile.am.include | 1 + src/modules/ellswift/tests_exhaustive_impl.h | 39 ++++++++++++++++++++ src/tests_exhaustive.c | 16 ++++++++ 3 files changed, 56 insertions(+) create mode 100644 src/modules/ellswift/tests_exhaustive_impl.h diff --git a/src/modules/ellswift/Makefile.am.include b/src/modules/ellswift/Makefile.am.include index e7efea2981..8251231ea3 100644 --- a/src/modules/ellswift/Makefile.am.include +++ b/src/modules/ellswift/Makefile.am.include @@ -2,3 +2,4 @@ include_HEADERS += include/secp256k1_ellswift.h noinst_HEADERS += src/modules/ellswift/bench_impl.h noinst_HEADERS += src/modules/ellswift/main_impl.h noinst_HEADERS += src/modules/ellswift/tests_impl.h +noinst_HEADERS += src/modules/ellswift/tests_exhaustive_impl.h diff --git a/src/modules/ellswift/tests_exhaustive_impl.h b/src/modules/ellswift/tests_exhaustive_impl.h new file mode 100644 index 0000000000..e002a8c008 --- /dev/null +++ b/src/modules/ellswift/tests_exhaustive_impl.h @@ -0,0 +1,39 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_ELLSWIFT_TESTS_EXHAUSTIVE_H +#define SECP256K1_MODULE_ELLSWIFT_TESTS_EXHAUSTIVE_H + +#include "../../../include/secp256k1_ellswift.h" +#include "main_impl.h" + +static void test_exhaustive_ellswift(const secp256k1_context *ctx, const secp256k1_ge *group) { + int i; + + /* Note that SwiftEC/ElligatorSwift are inherently curve operations, not + * group operations, and this test only checks the curve points which are in + * a tiny subgroup. In that sense it can't be really seen as exhaustive as + * it doesn't (and for computational reasons obviously cannot) test the + * entire domain ellswift operates under. */ + for (i = 1; i < EXHAUSTIVE_TEST_ORDER; i++) { + secp256k1_scalar scalar_i; + unsigned char sec32[32]; + unsigned char ell64[64]; + secp256k1_pubkey pub_decoded; + secp256k1_ge ge_decoded; + + /* Construct ellswift pubkey from exhaustive loop scalar i. */ + secp256k1_scalar_set_int(&scalar_i, i); + secp256k1_scalar_get_b32(sec32, &scalar_i); + CHECK(secp256k1_ellswift_create(ctx, ell64, sec32, NULL)); + + /* Decode ellswift pubkey and check that it matches the precomputed group element. */ + secp256k1_ellswift_decode(ctx, &pub_decoded, ell64); + secp256k1_pubkey_load(ctx, &ge_decoded, &pub_decoded); + ge_equals_ge(&ge_decoded, &group[i]); + } +} + +#endif diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index d35acdd58e..dbb6b7eb46 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -13,6 +13,9 @@ #define EXHAUSTIVE_TEST_ORDER 13 #endif +/* These values of B are all values in [1, 8] that result in a curve with even order. */ +#define EXHAUSTIVE_TEST_CURVE_HAS_EVEN_ORDER (SECP256K1_B == 1 || SECP256K1_B == 6 || SECP256K1_B == 8) + #ifdef USE_EXTERNAL_DEFAULT_CALLBACKS #pragma message("Ignoring USE_EXTERNAL_CALLBACKS in exhaustive_tests.") #undef USE_EXTERNAL_DEFAULT_CALLBACKS @@ -395,6 +398,10 @@ static void test_exhaustive_sign(const secp256k1_context *ctx, const secp256k1_g #include "modules/schnorrsig/tests_exhaustive_impl.h" #endif +#ifdef ENABLE_MODULE_ELLSWIFT +#include "modules/ellswift/tests_exhaustive_impl.h" +#endif + int main(int argc, char** argv) { int i; secp256k1_gej groupj[EXHAUSTIVE_TEST_ORDER]; @@ -490,6 +497,15 @@ int main(int argc, char** argv) { #ifdef ENABLE_MODULE_SCHNORRSIG test_exhaustive_schnorrsig(ctx); #endif +#ifdef ENABLE_MODULE_ELLSWIFT + /* The ellswift algorithm does have additional edge cases when operating on + * curves of even order, which are not included in the code as secp256k1 is + * of odd order. Skip the ellswift tests if the used exhaustive tests curve + * is even-ordered accordingly. */ + #if !EXHAUSTIVE_TEST_CURVE_HAS_EVEN_ORDER + test_exhaustive_ellswift(ctx, group); + #endif +#endif secp256k1_context_destroy(ctx); } From b79ba8aa4c074b2cd09188f6f85ba68d6b80fe50 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 29 Jun 2023 16:44:22 +0200 Subject: [PATCH 190/557] field: Use `restrict` consistently in fe_sqrt That is, use it also in the definition and not only the declaration. I believe this was the intention of commit be82bd8e0347e090037ff1d30a22a9d614db8c9f, but it was omitted there. --- src/field_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/field_impl.h b/src/field_impl.h index 2a0fba20a2..7f18ebdc94 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -44,7 +44,7 @@ SECP256K1_INLINE static int secp256k1_fe_equal_var(const secp256k1_fe *a, const return secp256k1_fe_normalizes_to_zero_var(&na); } -static int secp256k1_fe_sqrt(secp256k1_fe *r, const secp256k1_fe *a) { +static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k1_fe * SECP256K1_RESTRICT a) { /** Given that p is congruent to 3 mod 4, we can compute the square root of * a mod p as the (p+1)/4'th power of a. * From 1deecaaf3b94dbf08896e015e7f1e5ec328a40f2 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 11 May 2023 16:10:09 +0200 Subject: [PATCH 191/557] ci: Install development snapshots of gcc and clang TODO: Make sure the Docker image is actually rebuild --- ci/linux-debian.Dockerfile | 36 +++++++++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 0a5bd54e63..bba7b302e9 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -1,5 +1,7 @@ FROM debian:stable +SHELL ["/bin/bash", "-c"] + RUN dpkg --add-architecture i386 && \ dpkg --add-architecture s390x && \ dpkg --add-architecture armhf && \ @@ -9,7 +11,7 @@ RUN dpkg --add-architecture i386 && \ # dkpg-dev: to make pkg-config work in cross-builds # llvm: for llvm-symbolizer, which is used by clang's UBSan for symbolized stack traces RUN apt-get update && apt-get install --no-install-recommends -y \ - git ca-certificates \ + git ca-certificates wget \ make automake libtool pkg-config dpkg-dev valgrind qemu-user \ gcc clang llvm libclang-rt-dev libc6-dbg \ g++ \ @@ -23,6 +25,38 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ sagemath WORKDIR /root + +# Build and install gcc snapshot +ARG GCC_SNAPSHOT_MAJOR=14 +RUN wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --level 1 --no-directories "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}" && \ + wget "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}/sha512.sum" && \ + sha512sum --check --ignore-missing sha512.sum && \ + # We should have downloaded exactly one tar.xz file + ls && \ + [[ $(ls *.tar.xz | wc -l) -eq "1" ]] && \ + tar xf *.tar.xz && \ + mkdir gcc-build && cd gcc-build && \ + apt-get update && apt-get install --no-install-recommends -y libgmp-dev libmpfr-dev libmpc-dev flex && \ + ../*/configure --prefix=/opt/gcc-snapshot --enable-languages=c --disable-bootstrap --disable-multilib --without-isl && \ + make -j $(nproc) && \ + make install && \ + ln -s /opt/gcc-snapshot/bin/gcc /usr/bin/gcc-snapshot + +# Install clang snapshot +RUN wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc && \ + # Add repository for this Debian release + . /etc/os-release && echo "deb http://apt.llvm.org/${VERSION_CODENAME} llvm-toolchain-${VERSION_CODENAME} main" >> /etc/apt/sources.list && \ + # Install clang snapshot + apt-get update && apt-get install --no-install-recommends -y clang && \ + # Remove just the "clang" symlink again + apt-get remove -y clang && \ + # We should have exactly two clang versions now + ls /usr/bin/clang* && \ + [[ $(ls /usr/bin/clang-?? | sort | wc -l) -eq "2" ]] && \ + # Create symlinks for them + ln -s $(ls /usr/bin/clang-?? | sort | tail -1) /usr/bin/clang-snapshot && \ + ln -s $(ls /usr/bin/clang-?? | sort | head -1) /usr/bin/clang + # The "wine" package provides a convience wrapper that we need RUN apt-get update && apt-get install --no-install-recommends -y \ git ca-certificates wine64 wine python3-simplejson python3-six msitools winbind procps && \ From 609093b3877b2fb21bd4bb2301a3eafb444a2fdb Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 13 May 2023 19:12:32 +0200 Subject: [PATCH 192/557] ci: Add x86_64 Linux tasks for gcc and clang snapshots --- .cirrus.yml | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/.cirrus.yml b/.cirrus.yml index 89eec3da74..5c7b0244f3 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -62,7 +62,7 @@ linux_container_snippet: &LINUX_CONTAINER # Gives us more CPUs for free if they're available. greedy: true # More than enough for our scripts. - memory: 1G + memory: 2G task: name: "x86_64: Linux (Debian stable)" @@ -88,6 +88,10 @@ task: CC: gcc - env: CC: clang + - env: + CC: gcc-snapshot + - env: + CC: clang-snapshot test_script: - ./ci/cirrus.sh << : *CAT_LOGS From e9e96482196da641733a8a6763341a84f8b9806a Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 28 Jun 2023 17:51:21 +0200 Subject: [PATCH 193/557] ci: Reduce number of macOS tasks from 28 to 8 --- .cirrus.yml | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 5c7b0244f3..ae205c624c 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -67,7 +67,7 @@ linux_container_snippet: &LINUX_CONTAINER task: name: "x86_64: Linux (Debian stable)" << : *LINUX_CONTAINER - matrix: &ENV_MATRIX + matrix: - env: {WIDEMUL: int64, RECOVERY: yes} - env: {WIDEMUL: int64, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - env: {WIDEMUL: int128} @@ -122,17 +122,20 @@ task: HOMEBREW_NO_INSTALL_CLEANUP: 1 # Cirrus gives us a fixed number of 4 virtual CPUs. Not that we even have that many jobs at the moment... MAKEFLAGS: -j5 - matrix: - << : *ENV_MATRIX env: ASM: no WITH_VALGRIND: no CTIMETESTS: no + CC: clang matrix: - - env: - CC: gcc - - env: - CC: clang + - env: {WIDEMUL: int64, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} + - env: {WIDEMUL: int64, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes, CC: gcc} + - env: {WIDEMUL: int128_struct, ECMULTGENPRECISION: 2, ECMULTWINDOW: 4} + - env: {WIDEMUL: int128, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} + - env: {WIDEMUL: int128, RECOVERY: yes, SCHNORRSIG: yes} + - env: {WIDEMUL: int128, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes, CC: gcc} + - env: {WIDEMUL: int128, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes, CPPFLAGS: -DVERIFY} + - env: {BUILD: distcheck} brew_script: - brew install automake libtool gcc test_script: From 981e5be38c492f0c0230fbe61be555d157380331 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 6 Jul 2023 20:19:07 +0200 Subject: [PATCH 194/557] ci: Fix typo in comment --- ci/linux-debian.Dockerfile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index bba7b302e9..dbb1dd2919 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -57,7 +57,7 @@ RUN wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted. ln -s $(ls /usr/bin/clang-?? | sort | tail -1) /usr/bin/clang-snapshot && \ ln -s $(ls /usr/bin/clang-?? | sort | head -1) /usr/bin/clang -# The "wine" package provides a convience wrapper that we need +# The "wine" package provides a convenience wrapper that we need RUN apt-get update && apt-get install --no-install-recommends -y \ git ca-certificates wine64 wine python3-simplejson python3-six msitools winbind procps && \ # Workaround for `wine` package failure to employ the Debian alternatives system properly. From 600c5adcd59240305e22918943f45dceeabb7e93 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sun, 11 Jun 2023 16:38:12 +0200 Subject: [PATCH 195/557] clean up in-comment Sage code (refer to secp256k1_params.sage, update to Python3) Some of the C source files contain contain in-comment Sage code calculating secp256k1 parameters that are already defined in the file secp256k1_params.sage. Replace that by a corresponding load instruction and access the necessary variables. In ecdsa_impl.h, update the comment to use a one-line shell command calling sage to get the values. The remaining code (test `test_add_neg_y_diff_x` in tests.c) is updated to work with a current version based on Python3 (Sage 9.0+, see https://wiki.sagemath.org/Python3-Switch). The latter can be seen as a small follow-up to PR #849 (commit 13c88efed0005eb6745a222963ee74564054eafb). --- src/ecdsa_impl.h | 21 ++++----------------- src/tests.c | 17 +++++------------ 2 files changed, 9 insertions(+), 29 deletions(-) diff --git a/src/ecdsa_impl.h b/src/ecdsa_impl.h index 48e30851b5..e71254d9f9 100644 --- a/src/ecdsa_impl.h +++ b/src/ecdsa_impl.h @@ -16,17 +16,8 @@ #include "ecdsa.h" /** Group order for secp256k1 defined as 'n' in "Standards for Efficient Cryptography" (SEC2) 2.7.1 - * sage: for t in xrange(1023, -1, -1): - * .. p = 2**256 - 2**32 - t - * .. if p.is_prime(): - * .. print '%x'%p - * .. break - * 'fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f' - * sage: a = 0 - * sage: b = 7 - * sage: F = FiniteField (p) - * sage: '%x' % (EllipticCurve ([F (a), F (b)]).order()) - * 'fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141' + * $ sage -c 'load("secp256k1_params.sage"); print(hex(N))' + * 0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141 */ static const secp256k1_fe secp256k1_ecdsa_const_order_as_fe = SECP256K1_FE_CONST( 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFEUL, @@ -35,12 +26,8 @@ static const secp256k1_fe secp256k1_ecdsa_const_order_as_fe = SECP256K1_FE_CONST /** Difference between field and order, values 'p' and 'n' values defined in * "Standards for Efficient Cryptography" (SEC2) 2.7.1. - * sage: p = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F - * sage: a = 0 - * sage: b = 7 - * sage: F = FiniteField (p) - * sage: '%x' % (p - EllipticCurve ([F (a), F (b)]).order()) - * '14551231950b75fc4402da1722fc9baee' + * $ sage -c 'load("secp256k1_params.sage"); print(hex(P-N))' + * 0x14551231950b75fc4402da1722fc9baee */ static const secp256k1_fe secp256k1_ecdsa_const_p_minus_order = SECP256K1_FE_CONST( 0, 0, 0, 1, 0x45512319UL, 0x50B75FC4UL, 0x402DA172UL, 0x2FC9BAEEUL diff --git a/src/tests.c b/src/tests.c index e67891a892..ca5a314598 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4009,22 +4009,15 @@ static void test_add_neg_y_diff_x(void) { * which this test is a regression test for. * * These points were generated in sage as - * # secp256k1 params - * F = FiniteField (0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F) - * C = EllipticCurve ([F (0), F (7)]) - * G = C.lift_x(0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798) - * N = FiniteField(G.order()) * - * # endomorphism values (lambda is 1^{1/3} in N, beta is 1^{1/3} in F) - * x = polygen(N) - * lam = (1 - x^3).roots()[1][0] + * load("secp256k1_params.sage") * * # random "bad pair" * P = C.random_element() - * Q = -int(lam) * P - * print " P: %x %x" % P.xy() - * print " Q: %x %x" % Q.xy() - * print "P + Q: %x %x" % (P + Q).xy() + * Q = -int(LAMBDA) * P + * print(" P: %x %x" % P.xy()) + * print(" Q: %x %x" % Q.xy()) + * print("P + Q: %x %x" % (P + Q).xy()) */ secp256k1_gej aj = SECP256K1_GEJ_CONST( 0x8d24cd95, 0x0a355af1, 0x3c543505, 0x44238d30, From cef373997c29c5e6077b9367c92812bcc99bc8bf Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 14 Jul 2023 08:41:26 +0100 Subject: [PATCH 196/557] cmake, refactor: Use helper function instead of interface library This change aims to simplify the following commit. --- examples/CMakeLists.txt | 33 ++++++++++++++++----------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index e2ea473008..c9f8f8a093 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -1,24 +1,23 @@ -add_library(example INTERFACE) -target_include_directories(example INTERFACE - ${PROJECT_SOURCE_DIR}/include -) -target_link_libraries(example INTERFACE - secp256k1 - $<$:bcrypt> -) +function(add_example name) + set(target_name ${name}_example) + add_executable(${target_name} ${name}.c) + target_include_directories(${target_name} PRIVATE + ${PROJECT_SOURCE_DIR}/include + ) + target_link_libraries(${target_name} + secp256k1 + $<$:bcrypt> + ) + set(test_name ${name}_example) + add_test(NAME ${test_name} COMMAND ${target_name}) +endfunction() -add_executable(ecdsa_example ecdsa.c) -target_link_libraries(ecdsa_example example) -add_test(NAME ecdsa_example COMMAND ecdsa_example) +add_example(ecdsa) if(SECP256K1_ENABLE_MODULE_ECDH) - add_executable(ecdh_example ecdh.c) - target_link_libraries(ecdh_example example) - add_test(NAME ecdh_example COMMAND ecdh_example) + add_example(ecdh) endif() if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) - add_executable(schnorr_example schnorr.c) - target_link_libraries(schnorr_example example) - add_test(NAME schnorr_example COMMAND schnorr_example) + add_example(schnorr) endif() From 116d2ab3df630455f23a7b21f50237689879ecc0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 14 Jul 2023 08:42:48 +0100 Subject: [PATCH 197/557] cmake: Set `ENVIRONMENT` property for examples on Windows This change simplifies running examples on Windows, because the DLL must reside either in the same folder where the executable is or somewhere in PATH. --- examples/CMakeLists.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index c9f8f8a093..607bb67770 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -10,6 +10,13 @@ function(add_example name) ) set(test_name ${name}_example) add_test(NAME ${test_name} COMMAND ${target_name}) + if(BUILD_SHARED_LIBS AND MSVC) + # The DLL must reside either in the same folder where the executable is + # or somewhere in PATH. Using the latter option. + set_tests_properties(${test_name} PROPERTIES + ENVIRONMENT "PATH=$;$ENV{PATH}" + ) + endif() endfunction() add_example(ecdsa) From 175db31149fff4b3dc3d3dab021f289d7e98381c Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 14 Jul 2023 08:43:08 +0100 Subject: [PATCH 198/557] ci: Drop no longer needed `PATH` variable update on Windows --- .cirrus.yml | 1 - 1 file changed, 1 deletion(-) diff --git a/.cirrus.yml b/.cirrus.yml index ae205c624c..7fda6d3bd7 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -386,7 +386,6 @@ task: cpu: 4 memory: 3840MB env: - PATH: '%CIRRUS_WORKING_DIR%\build\src\RelWithDebInfo;%PATH%' x64_NATIVE_TOOLS: '"C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvars64.bat"' # Ignore MSBuild warning MSB8029. # See: https://learn.microsoft.com/en-us/visualstudio/msbuild/errors/msb8029?view=vs-2022 From c424e2fb43c8ed959b2af7b2216028ce2a023488 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 17 Jul 2023 09:28:09 +0000 Subject: [PATCH 199/557] ellswift: fix probabilistic test failure when swapping sides When configured with `--disable-module-ecdh --enable-module-recovery`, then `./tests 64 81af32fd7ab8c9cbc2e62a689f642106` fails with ``` src/modules/ellswift/tests_impl.h:396: test condition failed: secp256k1_memcmp_var(share32_bad, share32a, 32) != 0 ``` This tests verifies that changing the `party` bit of the `secp256k1_ellswift_xdh` function results in a different share. However, that's not the case when the secret keys of both parties are the same and this is actually what happens in the observed test failure. The keys can be equal in this test case because they are created by the `random_scalar_order_test` function whose output is not uniformly random (it's biased towards 0). This commit restores the assummption that the secret keys differ. --- src/modules/ellswift/tests_impl.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index 86ca09862b..47f443d980 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -322,7 +322,9 @@ void run_ellswift_tests(void) { secp256k1_testrand256_test(auxrnd32a); secp256k1_testrand256_test(auxrnd32b); random_scalar_order_test(&seca); - random_scalar_order_test(&secb); + /* Draw secb uniformly at random to make sure that the secret keys + * differ */ + random_scalar_order(&secb); secp256k1_scalar_get_b32(sec32a, &seca); secp256k1_scalar_get_b32(sec32b, &secb); From 690b0fc05abd76cb7f6bd87e88bf7b8b0fd1ab70 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 15 Jun 2023 00:21:20 +0200 Subject: [PATCH 200/557] add missing group element invariant checks The group element checks `secp256k1_{ge,gej}_verify` have first been implemented and added in commit f20266722ac93ca66d1beb0d2f2d2469b95aafea (PR #1299). This commit adds additional verification calls in group functions, to match the ones that were originally proposed in commit 09dbba561fdb9d57a2cc9842ce041d9ba29a6189 of WIP-PR #1032 (which is obviously not rebased on #1299 yet). Also, for easier review, all functions handling group elements are structured in the following wasy for easier review (idea suggested by Tim Ruffing): - on entry, verify all input ge, gej (and fe) - empty line - actual function body - empty line - on exit, verify all output ge, gej Co-authored-by: Peter Dettman Co-authored-by: Tim Ruffing --- src/group_impl.h | 102 +++++++++++++++++++++++++++++++++++++---------- 1 file changed, 82 insertions(+), 20 deletions(-) diff --git a/src/group_impl.h b/src/group_impl.h index ffdfeaa10a..f4dd6c87c4 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -99,11 +99,13 @@ static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, c secp256k1_gej_verify(a); secp256k1_fe_verify(zi); VERIFY_CHECK(!a->infinity); + secp256k1_fe_sqr(&zi2, zi); secp256k1_fe_mul(&zi3, &zi2, zi); secp256k1_fe_mul(&r->x, &a->x, &zi2); secp256k1_fe_mul(&r->y, &a->y, &zi3); r->infinity = a->infinity; + secp256k1_ge_verify(r); } @@ -114,39 +116,47 @@ static void secp256k1_ge_set_ge_zinv(secp256k1_ge *r, const secp256k1_ge *a, con secp256k1_ge_verify(a); secp256k1_fe_verify(zi); VERIFY_CHECK(!a->infinity); + secp256k1_fe_sqr(&zi2, zi); secp256k1_fe_mul(&zi3, &zi2, zi); secp256k1_fe_mul(&r->x, &a->x, &zi2); secp256k1_fe_mul(&r->y, &a->y, &zi3); r->infinity = a->infinity; + secp256k1_ge_verify(r); } static void secp256k1_ge_set_xy(secp256k1_ge *r, const secp256k1_fe *x, const secp256k1_fe *y) { secp256k1_fe_verify(x); secp256k1_fe_verify(y); + r->infinity = 0; r->x = *x; r->y = *y; + secp256k1_ge_verify(r); } static int secp256k1_ge_is_infinity(const secp256k1_ge *a) { secp256k1_ge_verify(a); + return a->infinity; } static void secp256k1_ge_neg(secp256k1_ge *r, const secp256k1_ge *a) { secp256k1_ge_verify(a); + *r = *a; secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); + secp256k1_ge_verify(r); } static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; secp256k1_gej_verify(a); + r->infinity = a->infinity; secp256k1_fe_inv(&a->z, &a->z); secp256k1_fe_sqr(&z2, &a->z); @@ -156,12 +166,15 @@ static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe_set_int(&a->z, 1); r->x = a->x; r->y = a->y; + + secp256k1_gej_verify(a); secp256k1_ge_verify(r); } static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; secp256k1_gej_verify(a); + if (secp256k1_gej_is_infinity(a)) { secp256k1_ge_set_infinity(r); return; @@ -174,6 +187,8 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe_mul(&a->y, &a->y, &z3); secp256k1_fe_set_int(&a->z, 1); secp256k1_ge_set_xy(r, &a->x, &a->y); + + secp256k1_gej_verify(a); secp256k1_ge_verify(r); } @@ -181,9 +196,13 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a secp256k1_fe u; size_t i; size_t last_i = SIZE_MAX; - +#ifdef VERIFY for (i = 0; i < len; i++) { secp256k1_gej_verify(&a[i]); + } +#endif + + for (i = 0; i < len; i++) { if (a[i].infinity) { secp256k1_ge_set_infinity(&r[i]); } else { @@ -217,36 +236,46 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a if (!a[i].infinity) { secp256k1_ge_set_gej_zinv(&r[i], &a[i], &r[i].x); } + } + +#ifdef VERIFY + for (i = 0; i < len; i++) { secp256k1_ge_verify(&r[i]); } +#endif } static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const secp256k1_fe *zr) { - size_t i = len - 1; + size_t i; secp256k1_fe zs; - - if (len > 0) { - /* Verify inputs a[len-1] and zr[len-1]. */ +#ifdef VERIFY + for (i = 0; i < len; i++) { secp256k1_ge_verify(&a[i]); secp256k1_fe_verify(&zr[i]); + } +#endif + + if (len > 0) { + i = len - 1; /* Ensure all y values are in weak normal form for fast negation of points */ secp256k1_fe_normalize_weak(&a[i].y); zs = zr[i]; /* Work our way backwards, using the z-ratios to scale the x/y values. */ while (i > 0) { - /* Verify all inputs a[i] and zr[i]. */ - secp256k1_fe_verify(&zr[i]); - secp256k1_ge_verify(&a[i]); if (i != len - 1) { secp256k1_fe_mul(&zs, &zs, &zr[i]); } i--; secp256k1_ge_set_ge_zinv(&a[i], &a[i], &zs); - /* Verify the output a[i]. */ - secp256k1_ge_verify(&a[i]); } } + +#ifdef VERIFY + for (i = 0; i < len; i++) { + secp256k1_ge_verify(&a[i]); + } +#endif } static void secp256k1_gej_set_infinity(secp256k1_gej *r) { @@ -254,6 +283,7 @@ static void secp256k1_gej_set_infinity(secp256k1_gej *r) { secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); secp256k1_fe_clear(&r->z); + secp256k1_gej_verify(r); } @@ -261,6 +291,7 @@ static void secp256k1_ge_set_infinity(secp256k1_ge *r) { r->infinity = 1; secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); + secp256k1_ge_verify(r); } @@ -269,18 +300,23 @@ static void secp256k1_gej_clear(secp256k1_gej *r) { secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); secp256k1_fe_clear(&r->z); + + secp256k1_gej_verify(r); } static void secp256k1_ge_clear(secp256k1_ge *r) { r->infinity = 0; secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); + + secp256k1_ge_verify(r); } static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd) { secp256k1_fe x2, x3; int ret; secp256k1_fe_verify(x); + r->x = *x; secp256k1_fe_sqr(&x2, x); secp256k1_fe_mul(&x3, x, &x2); @@ -291,16 +327,19 @@ static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int o if (secp256k1_fe_is_odd(&r->y) != odd) { secp256k1_fe_negate(&r->y, &r->y, 1); } + secp256k1_ge_verify(r); return ret; } static void secp256k1_gej_set_ge(secp256k1_gej *r, const secp256k1_ge *a) { secp256k1_ge_verify(a); + r->infinity = a->infinity; r->x = a->x; r->y = a->y; secp256k1_fe_set_int(&r->z, 1); + secp256k1_gej_verify(r); } @@ -308,6 +347,7 @@ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) secp256k1_gej tmp; secp256k1_gej_verify(b); secp256k1_gej_verify(a); + secp256k1_gej_neg(&tmp, a); secp256k1_gej_add_var(&tmp, &tmp, b, NULL); return secp256k1_gej_is_infinity(&tmp); @@ -315,11 +355,10 @@ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) { secp256k1_fe r; - -#ifdef VERIFY secp256k1_fe_verify(x); - VERIFY_CHECK(a->x.magnitude <= 31); secp256k1_gej_verify(a); +#ifdef VERIFY + VERIFY_CHECK(a->x.magnitude <= 31); VERIFY_CHECK(!a->infinity); #endif @@ -329,23 +368,27 @@ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) static void secp256k1_gej_neg(secp256k1_gej *r, const secp256k1_gej *a) { secp256k1_gej_verify(a); + r->infinity = a->infinity; r->x = a->x; r->y = a->y; r->z = a->z; secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); + secp256k1_gej_verify(r); } static int secp256k1_gej_is_infinity(const secp256k1_gej *a) { secp256k1_gej_verify(a); + return a->infinity; } static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { secp256k1_fe y2, x3; secp256k1_ge_verify(a); + if (a->infinity) { return 0; } @@ -359,8 +402,8 @@ static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp256k1_gej *a) { /* Operations: 3 mul, 4 sqr, 8 add/half/mul_int/negate */ secp256k1_fe l, s, t; - secp256k1_gej_verify(a); + r->infinity = a->infinity; /* Formula used: @@ -387,10 +430,13 @@ static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp25 secp256k1_fe_mul(&r->y, &t, &l); /* Y3 = L*(X3 + T) (1) */ secp256k1_fe_add(&r->y, &s); /* Y3 = L*(X3 + T) + S^2 (2) */ secp256k1_fe_negate(&r->y, &r->y, 2); /* Y3 = -(L*(X3 + T) + S^2) (3) */ + secp256k1_gej_verify(r); } static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe *rzr) { + secp256k1_gej_verify(a); + /** For secp256k1, 2Q is infinity if and only if Q is infinity. This is because if 2Q = infinity, * Q must equal -Q, or that Q.y == -(Q.y), or Q.y is 0. For a point on y^2 = x^3 + 7 to have * y=0, x^3 must be -7 mod p. However, -7 has no cube root mod p. @@ -401,7 +447,6 @@ static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, s * the infinity flag even though the point doubles to infinity, and the result * point will be gibberish (z = 0 but infinity = 0). */ - secp256k1_gej_verify(a); if (a->infinity) { secp256k1_gej_set_infinity(r); if (rzr != NULL) { @@ -416,15 +461,16 @@ static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, s } secp256k1_gej_double(r, a); + secp256k1_gej_verify(r); } static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_gej *b, secp256k1_fe *rzr) { /* 12 mul, 4 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z22, z12, u1, u2, s1, s2, h, i, h2, h3, t; - secp256k1_gej_verify(a); secp256k1_gej_verify(b); + if (a->infinity) { VERIFY_CHECK(rzr == NULL); *r = *b; @@ -479,6 +525,7 @@ static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, cons secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); + secp256k1_gej_verify(r); } @@ -487,6 +534,7 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c secp256k1_fe z12, u1, u2, s1, s2, h, i, h2, h3, t; secp256k1_gej_verify(a); secp256k1_ge_verify(b); + if (a->infinity) { VERIFY_CHECK(rzr == NULL); secp256k1_gej_set_ge(r, b); @@ -539,6 +587,7 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); + secp256k1_gej_verify(r); if (rzr != NULL) secp256k1_fe_verify(rzr); } @@ -546,9 +595,10 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, const secp256k1_fe *bzinv) { /* 9 mul, 3 sqr, 13 add/negate/normalize_weak/normalizes_to_zero (ignoring special cases) */ secp256k1_fe az, z12, u1, u2, s1, s2, h, i, h2, h3, t; - + secp256k1_gej_verify(a); secp256k1_ge_verify(b); secp256k1_fe_verify(bzinv); + if (a->infinity) { secp256k1_fe bzinv2, bzinv3; r->infinity = b->infinity; @@ -557,6 +607,7 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe_mul(&r->x, &b->x, &bzinv2); secp256k1_fe_mul(&r->y, &b->y, &bzinv3); secp256k1_fe_set_int(&r->z, 1); + secp256k1_gej_verify(r); return; } if (b->infinity) { @@ -607,6 +658,7 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe_mul(&r->y, &t, &i); secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); + secp256k1_gej_verify(r); } @@ -743,6 +795,7 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const * We have degenerate = false, r->z = (y1 + y2) * Z. * Then r->infinity = ((y1 + y2)Z == 0) = (y1 == -y2) = false. */ r->infinity = secp256k1_fe_normalizes_to_zero(&r->z); + secp256k1_gej_verify(r); } @@ -754,11 +807,13 @@ static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *s) { #ifdef VERIFY VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(s)); #endif + secp256k1_fe_sqr(&zz, s); secp256k1_fe_mul(&r->x, &r->x, &zz); /* r->x *= s^2 */ secp256k1_fe_mul(&r->y, &r->y, &zz); secp256k1_fe_mul(&r->y, &r->y, s); /* r->y *= s^3 */ secp256k1_fe_mul(&r->z, &r->z, s); /* r->z *= s */ + secp256k1_gej_verify(r); } @@ -766,6 +821,7 @@ static void secp256k1_ge_to_storage(secp256k1_ge_storage *r, const secp256k1_ge secp256k1_fe x, y; secp256k1_ge_verify(a); VERIFY_CHECK(!a->infinity); + x = a->x; secp256k1_fe_normalize(&x); y = a->y; @@ -778,17 +834,19 @@ static void secp256k1_ge_from_storage(secp256k1_ge *r, const secp256k1_ge_storag secp256k1_fe_from_storage(&r->x, &a->x); secp256k1_fe_from_storage(&r->y, &a->y); r->infinity = 0; + secp256k1_ge_verify(r); } static SECP256K1_INLINE void secp256k1_gej_cmov(secp256k1_gej *r, const secp256k1_gej *a, int flag) { secp256k1_gej_verify(r); secp256k1_gej_verify(a); + secp256k1_fe_cmov(&r->x, &a->x, flag); secp256k1_fe_cmov(&r->y, &a->y, flag); secp256k1_fe_cmov(&r->z, &a->z, flag); - r->infinity ^= (r->infinity ^ a->infinity) & flag; + secp256k1_gej_verify(r); } @@ -798,9 +856,11 @@ static SECP256K1_INLINE void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, } static void secp256k1_ge_mul_lambda(secp256k1_ge *r, const secp256k1_ge *a) { - *r = *a; secp256k1_ge_verify(a); + + *r = *a; secp256k1_fe_mul(&r->x, &r->x, &secp256k1_const_beta); + secp256k1_ge_verify(r); } @@ -808,8 +868,8 @@ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { #ifdef EXHAUSTIVE_TEST_ORDER secp256k1_gej out; int i; - secp256k1_ge_verify(ge); + /* A very simple EC multiplication ladder that avoids a dependency on ecmult. */ secp256k1_gej_set_infinity(&out); for (i = 0; i < 32; ++i) { @@ -820,6 +880,8 @@ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { } return secp256k1_gej_is_infinity(&out); #else + secp256k1_ge_verify(ge); + (void)ge; /* The real secp256k1 group has cofactor 1, so the subgroup is the entire curve. */ return 1; From 4e9661fc426c6068b2472f52a772c312bc26acc9 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Sun, 5 Dec 2021 16:19:52 +0700 Subject: [PATCH 201/557] Add _fe_verify_magnitude (no-op unless VERIFY is enabled) Co-authored-by: Tim Ruffing --- src/field.h | 3 +++ src/field_impl.h | 7 +++++++ 2 files changed, 10 insertions(+) diff --git a/src/field.h b/src/field.h index bb99f948ef..c1775912f8 100644 --- a/src/field.h +++ b/src/field.h @@ -352,4 +352,7 @@ static int secp256k1_fe_is_square_var(const secp256k1_fe *a); /** Check invariants on a field element (no-op unless VERIFY is enabled). */ static void secp256k1_fe_verify(const secp256k1_fe *a); +/** Check that magnitude of a is at most m (no-op unless VERIFY is enabled). */ +static void secp256k1_fe_verify_magnitude(const secp256k1_fe *a, int m); + #endif /* SECP256K1_FIELD_H */ diff --git a/src/field_impl.h b/src/field_impl.h index 7f18ebdc94..bd3767b15c 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -159,6 +159,7 @@ static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k #ifndef VERIFY static void secp256k1_fe_verify(const secp256k1_fe *a) { (void)a; } +static void secp256k1_fe_verify_magnitude(const secp256k1_fe *a, int m) { (void)a; (void)m; } #else static void secp256k1_fe_impl_verify(const secp256k1_fe *a); static void secp256k1_fe_verify(const secp256k1_fe *a) { @@ -172,6 +173,12 @@ static void secp256k1_fe_verify(const secp256k1_fe *a) { secp256k1_fe_impl_verify(a); } +static void secp256k1_fe_verify_magnitude(const secp256k1_fe *a, int m) { + VERIFY_CHECK(m >= 0); + VERIFY_CHECK(m <= 32); + VERIFY_CHECK(a->magnitude <= m); +} + static void secp256k1_fe_impl_normalize(secp256k1_fe *r); SECP256K1_INLINE static void secp256k1_fe_normalize(secp256k1_fe *r) { secp256k1_fe_verify(r); From 49afd2f5d8c323d32a21f2fe182823b6d7704eb2 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 14 Jul 2023 01:24:22 +0200 Subject: [PATCH 202/557] Take use of _fe_verify_magnitude in field_impl.h --- src/field_impl.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/src/field_impl.h b/src/field_impl.h index bd3767b15c..29b54c74bc 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -23,8 +23,8 @@ SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe *a, const secp #ifdef VERIFY secp256k1_fe_verify(a); secp256k1_fe_verify(b); - VERIFY_CHECK(a->magnitude <= 1); - VERIFY_CHECK(b->magnitude <= 31); + secp256k1_fe_verify_magnitude(a, 1); + secp256k1_fe_verify_magnitude(b, 31); #endif secp256k1_fe_negate(&na, a, 1); secp256k1_fe_add(&na, b); @@ -36,8 +36,8 @@ SECP256K1_INLINE static int secp256k1_fe_equal_var(const secp256k1_fe *a, const #ifdef VERIFY secp256k1_fe_verify(a); secp256k1_fe_verify(b); - VERIFY_CHECK(a->magnitude <= 1); - VERIFY_CHECK(b->magnitude <= 31); + secp256k1_fe_verify_magnitude(a, 1); + secp256k1_fe_verify_magnitude(b, 31); #endif secp256k1_fe_negate(&na, a, 1); secp256k1_fe_add(&na, b); @@ -60,7 +60,7 @@ static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k #ifdef VERIFY VERIFY_CHECK(r != a); secp256k1_fe_verify(a); - VERIFY_CHECK(a->magnitude <= 8); + secp256k1_fe_verify_magnitude(a, 8); #endif /** The binary representation of (p + 1)/4 has 3 blocks of 1s, with lengths in @@ -164,11 +164,11 @@ static void secp256k1_fe_verify_magnitude(const secp256k1_fe *a, int m) { (void) static void secp256k1_fe_impl_verify(const secp256k1_fe *a); static void secp256k1_fe_verify(const secp256k1_fe *a) { /* Magnitude between 0 and 32. */ - VERIFY_CHECK((a->magnitude >= 0) && (a->magnitude <= 32)); + secp256k1_fe_verify_magnitude(a, 32); /* Normalized is 0 or 1. */ VERIFY_CHECK((a->normalized == 0) || (a->normalized == 1)); /* If normalized, magnitude must be 0 or 1. */ - if (a->normalized) VERIFY_CHECK(a->magnitude <= 1); + if (a->normalized) secp256k1_fe_verify_magnitude(a, 1); /* Invoke implementation-specific checks. */ secp256k1_fe_impl_verify(a); } @@ -300,7 +300,7 @@ static void secp256k1_fe_impl_negate_unchecked(secp256k1_fe *r, const secp256k1_ SECP256K1_INLINE static void secp256k1_fe_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m) { secp256k1_fe_verify(a); VERIFY_CHECK(m >= 0 && m <= 31); - VERIFY_CHECK(a->magnitude <= m); + secp256k1_fe_verify_magnitude(a, m); secp256k1_fe_impl_negate_unchecked(r, a, m); r->magnitude = m + 1; r->normalized = 0; @@ -333,8 +333,8 @@ static void secp256k1_fe_impl_mul(secp256k1_fe *r, const secp256k1_fe *a, const SECP256K1_INLINE static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { secp256k1_fe_verify(a); secp256k1_fe_verify(b); - VERIFY_CHECK(a->magnitude <= 8); - VERIFY_CHECK(b->magnitude <= 8); + secp256k1_fe_verify_magnitude(a, 8); + secp256k1_fe_verify_magnitude(b, 8); VERIFY_CHECK(r != b); VERIFY_CHECK(a != b); secp256k1_fe_impl_mul(r, a, b); @@ -346,7 +346,7 @@ SECP256K1_INLINE static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_f static void secp256k1_fe_impl_sqr(secp256k1_fe *r, const secp256k1_fe *a); SECP256K1_INLINE static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { secp256k1_fe_verify(a); - VERIFY_CHECK(a->magnitude <= 8); + secp256k1_fe_verify_magnitude(a, 8); secp256k1_fe_impl_sqr(r, a); r->magnitude = 1; r->normalized = 0; @@ -425,7 +425,7 @@ SECP256K1_INLINE static void secp256k1_fe_get_bounds(secp256k1_fe* r, int m) { static void secp256k1_fe_impl_half(secp256k1_fe *r); SECP256K1_INLINE static void secp256k1_fe_half(secp256k1_fe *r) { secp256k1_fe_verify(r); - VERIFY_CHECK(r->magnitude < 32); + secp256k1_fe_verify_magnitude(r, 31); secp256k1_fe_impl_half(r); r->magnitude = (r->magnitude >> 1) + 1; r->normalized = 0; From 173e8d061a8d1526f80d9ae79dd7f0371d38f7e0 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Sun, 5 Dec 2021 16:27:56 +0700 Subject: [PATCH 203/557] Implement current magnitude assumptions Remove also the explicit magnitude restriction `a->x.magnitude <= 31` in `secp256k1_gej_eq_x_var` (introduced in commit 07c0e8b82e2cea87f85263512945fed7adffea18), as this is implied by the new limits. Co-authored-by: Sebastian Falbesoner --- src/group.h | 8 ++++++++ src/group_impl.h | 6 +++++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/src/group.h b/src/group.h index 1cc6137161..e39de8a49e 100644 --- a/src/group.h +++ b/src/group.h @@ -44,6 +44,14 @@ typedef struct { #define SECP256K1_GE_STORAGE_CONST_GET(t) SECP256K1_FE_STORAGE_CONST_GET(t.x), SECP256K1_FE_STORAGE_CONST_GET(t.y) +/** Maximum allowed magnitudes for group element coordinates + * in affine (x, y) and jacobian (x, y, z) representation. */ +#define SECP256K1_GE_X_MAGNITUDE_MAX 8 +#define SECP256K1_GE_Y_MAGNITUDE_MAX 8 +#define SECP256K1_GEJ_X_MAGNITUDE_MAX 8 +#define SECP256K1_GEJ_Y_MAGNITUDE_MAX 8 +#define SECP256K1_GEJ_Z_MAGNITUDE_MAX 8 + /** Set a group element equal to the point with given X and Y coordinates */ static void secp256k1_ge_set_xy(secp256k1_ge *r, const secp256k1_fe *x, const secp256k1_fe *y); diff --git a/src/group_impl.h b/src/group_impl.h index f4dd6c87c4..64cafa55b5 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -77,6 +77,8 @@ static void secp256k1_ge_verify(const secp256k1_ge *a) { #ifdef VERIFY secp256k1_fe_verify(&a->x); secp256k1_fe_verify(&a->y); + secp256k1_fe_verify_magnitude(&a->x, SECP256K1_GE_X_MAGNITUDE_MAX); + secp256k1_fe_verify_magnitude(&a->y, SECP256K1_GE_Y_MAGNITUDE_MAX); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); #endif (void)a; @@ -87,6 +89,9 @@ static void secp256k1_gej_verify(const secp256k1_gej *a) { secp256k1_fe_verify(&a->x); secp256k1_fe_verify(&a->y); secp256k1_fe_verify(&a->z); + secp256k1_fe_verify_magnitude(&a->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); + secp256k1_fe_verify_magnitude(&a->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); + secp256k1_fe_verify_magnitude(&a->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); #endif (void)a; @@ -358,7 +363,6 @@ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) secp256k1_fe_verify(x); secp256k1_gej_verify(a); #ifdef VERIFY - VERIFY_CHECK(a->x.magnitude <= 31); VERIFY_CHECK(!a->infinity); #endif From 4f8c5bd76132a0d0242c7a29b666153f927800bb Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 24 Jul 2023 13:14:23 +0100 Subject: [PATCH 204/557] refactor: Drop unused cast --- src/hash_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/hash_impl.h b/src/hash_impl.h index 0991fe7838..89f75ace74 100644 --- a/src/hash_impl.h +++ b/src/hash_impl.h @@ -138,7 +138,7 @@ static void secp256k1_sha256_write(secp256k1_sha256 *hash, const unsigned char * } if (len) { /* Fill the buffer with what remains. */ - memcpy(((unsigned char*)hash->buf) + bufsize, data, len); + memcpy(hash->buf + bufsize, data, len); } } From b097a466c168dcdb3fde435ec4a1e0b63609f55d Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Tue, 25 Jul 2023 20:35:57 +0000 Subject: [PATCH 205/557] util: remove unused checked_realloc Usage was removed in 6fe50439 . --- src/util.h | 8 -------- 1 file changed, 8 deletions(-) diff --git a/src/util.h b/src/util.h index 801ea0c885..cf7e5d1af5 100644 --- a/src/util.h +++ b/src/util.h @@ -152,14 +152,6 @@ static SECP256K1_INLINE void *checked_malloc(const secp256k1_callback* cb, size_ return ret; } -static SECP256K1_INLINE void *checked_realloc(const secp256k1_callback* cb, void *ptr, size_t size) { - void *ret = realloc(ptr, size); - if (ret == NULL) { - secp256k1_callback_call(cb, "Out of memory"); - } - return ret; -} - #if defined(__BIGGEST_ALIGNMENT__) #define ALIGNMENT __BIGGEST_ALIGNMENT__ #else From 78ca8807880def68a575b2487f374fdf4b49962d Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 26 Jul 2023 14:44:20 +0000 Subject: [PATCH 206/557] build: enable ellswift module via SECP_CONFIG_DEFINES ...like the other modules. --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index a502d1304a..1878496724 100644 --- a/configure.ac +++ b/configure.ac @@ -401,7 +401,7 @@ if test x"$enable_module_schnorrsig" = x"yes"; then fi if test x"$enable_module_ellswift" = x"yes"; then - AC_DEFINE(ENABLE_MODULE_ELLSWIFT, 1, [Define this symbol to enable the ElligatorSwift module]) + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_ELLSWIFT=1" fi # Test if extrakeys is set after the schnorrsig module to allow the schnorrsig From ad152151b06a40aaf6cd90561356ff451996455d Mon Sep 17 00:00:00 2001 From: stratospher <44024636+stratospher@users.noreply.github.com> Date: Tue, 11 Jul 2023 19:17:28 +0530 Subject: [PATCH 207/557] update max scalar in scalar_cmov_test and fix schnorrsig_verify exhaustive test - `secp256k1_scalar_set_int` in scalar_low uses input mod EXHAUSTIVE_TEST_ORDER - directly store s in sig64 without reducing it mod the group order for testing --- src/modules/schnorrsig/tests_exhaustive_impl.h | 10 +++++----- src/scalar_low_impl.h | 5 ++++- src/tests.c | 4 ++-- 3 files changed, 11 insertions(+), 8 deletions(-) diff --git a/src/modules/schnorrsig/tests_exhaustive_impl.h b/src/modules/schnorrsig/tests_exhaustive_impl.h index 55f9028a63..bc31d81107 100644 --- a/src/modules/schnorrsig/tests_exhaustive_impl.h +++ b/src/modules/schnorrsig/tests_exhaustive_impl.h @@ -110,15 +110,15 @@ static void test_exhaustive_schnorrsig_verify(const secp256k1_context *ctx, cons if (!e_done[e]) { /* Iterate over the possible valid last 32 bytes in the signature. 0..order=that s value; order+1=random bytes */ - int count_valid = 0, s; + int count_valid = 0; + unsigned int s; for (s = 0; s <= EXHAUSTIVE_TEST_ORDER + 1; ++s) { int expect_valid, valid; if (s <= EXHAUSTIVE_TEST_ORDER) { - secp256k1_scalar s_s; - secp256k1_scalar_set_int(&s_s, s); - secp256k1_scalar_get_b32(sig64 + 32, &s_s); + memset(sig64 + 32, 0, 32); + secp256k1_write_be32(sig64 + 60, s); expect_valid = actual_k != -1 && s != EXHAUSTIVE_TEST_ORDER && - (s_s == (actual_k + actual_d * e) % EXHAUSTIVE_TEST_ORDER); + (s == (actual_k + actual_d * e) % EXHAUSTIVE_TEST_ORDER); } else { secp256k1_testrand256(sig64 + 32); expect_valid = 0; diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 428a5deb33..09343c4935 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -18,7 +18,10 @@ SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) } SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { *r = 0; } -SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v) { *r = v; } + +SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v) { + *r = v % EXHAUSTIVE_TEST_ORDER; +} SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { if (offset < 32) diff --git a/src/tests.c b/src/tests.c index 7b38d7906a..69960d4580 100644 --- a/src/tests.c +++ b/src/tests.c @@ -7652,8 +7652,8 @@ static void scalar_cmov_test(void) { static const secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); static const secp256k1_scalar one = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 1); static const secp256k1_scalar max = SECP256K1_SCALAR_CONST( - 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, - 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL + 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFEUL, + 0xBAAEDCE6UL, 0xAF48A03BUL, 0xBFD25E8CUL, 0xD0364140UL ); secp256k1_scalar r = max; secp256k1_scalar a = zero; From c7d0454932b42a9728b55033c94e000b1dbbb6f2 Mon Sep 17 00:00:00 2001 From: stratospher <44024636+stratospher@users.noreply.github.com> Date: Tue, 4 Jul 2023 00:43:10 +0530 Subject: [PATCH 208/557] add verification for scalars secp256k1_scalar_verify checks that scalars are reduced mod the group order --- src/scalar.h | 3 +++ src/scalar_impl.h | 8 ++++++++ 2 files changed, 11 insertions(+) diff --git a/src/scalar.h b/src/scalar.h index 63c0d646a3..4b3c2998bb 100644 --- a/src/scalar.h +++ b/src/scalar.h @@ -99,4 +99,7 @@ static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, const secp256k1_ /** If flag is true, set *r equal to *a; otherwise leave it. Constant-time. Both *r and *a must be initialized.*/ static void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag); +/** Check invariants on a scalar (no-op unless VERIFY is enabled). */ +static void secp256k1_scalar_verify(const secp256k1_scalar *r); + #endif /* SECP256K1_SCALAR_H */ diff --git a/src/scalar_impl.h b/src/scalar_impl.h index bed7f95fcb..77abb83659 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -33,6 +33,14 @@ static int secp256k1_scalar_set_b32_seckey(secp256k1_scalar *r, const unsigned c return (!overflow) & (!secp256k1_scalar_is_zero(r)); } +static void secp256k1_scalar_verify(const secp256k1_scalar *r) { +#ifdef VERIFY + VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0); +#endif + + (void)r; +} + #if defined(EXHAUSTIVE_TEST_ORDER) /* Begin of section generated by sage/gen_exhaustive_groups.sage. */ # if EXHAUSTIVE_TEST_ORDER == 7 From 4692478853df2149375d1447908a792fcf240fbf Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 27 Jul 2023 10:20:50 +0000 Subject: [PATCH 209/557] ci: print $ELLSWIFT in cirrus.sh --- ci/cirrus.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ci/cirrus.sh b/ci/cirrus.sh index 48a9783cc4..fe54b5ea88 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -13,7 +13,7 @@ print_environment() { # does not rely on bash. for var in WERROR_CFLAGS MAKEFLAGS BUILD \ ECMULTWINDOW ECMULTGENPRECISION ASM WIDEMUL WITH_VALGRIND EXTRAFLAGS \ - EXPERIMENTAL ECDH RECOVERY SCHNORRSIG \ + EXPERIMENTAL ECDH RECOVERY SCHNORRSIG ELLSWIFT \ SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS\ EXAMPLES \ HOST WRAPPER_CMD \ From d23da6d55714271c720fee58fbff5e5ef2fe193f Mon Sep 17 00:00:00 2001 From: stratospher <44024636+stratospher@users.noreply.github.com> Date: Wed, 12 Jul 2023 18:55:26 +0530 Subject: [PATCH 210/557] use secp256k1_scalar_verify checks --- src/scalar_4x64_impl.h | 79 +++++++++++++++++++++++++++++++++++++---- src/scalar_8x32_impl.h | 80 +++++++++++++++++++++++++++++++++++++----- src/scalar_impl.h | 11 ++++++ src/scalar_low_impl.h | 65 +++++++++++++++++++++++++++++++++- 4 files changed, 219 insertions(+), 16 deletions(-) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 1d14740577..715cc12ee5 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -41,16 +41,22 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig r->d[1] = 0; r->d[2] = 0; r->d[3] = 0; + + secp256k1_scalar_verify(r); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { + secp256k1_scalar_verify(a); VERIFY_CHECK((offset + count - 1) >> 6 == offset >> 6); + return (a->d[offset >> 6] >> (offset & 0x3F)) & ((((uint64_t)1) << count) - 1); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { + secp256k1_scalar_verify(a); VERIFY_CHECK(count < 32); VERIFY_CHECK(offset + count <= 256); + if ((offset + count - 1) >> 6 == offset >> 6) { return secp256k1_scalar_get_bits(a, offset, count); } else { @@ -74,6 +80,7 @@ SECP256K1_INLINE static int secp256k1_scalar_check_overflow(const secp256k1_scal SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar *r, unsigned int overflow) { secp256k1_uint128 t; VERIFY_CHECK(overflow <= 1); + secp256k1_u128_from_u64(&t, r->d[0]); secp256k1_u128_accum_u64(&t, overflow * SECP256K1_N_C_0); r->d[0] = secp256k1_u128_to_u64(&t); secp256k1_u128_rshift(&t, 64); @@ -85,12 +92,17 @@ SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar *r, unsigne r->d[2] = secp256k1_u128_to_u64(&t); secp256k1_u128_rshift(&t, 64); secp256k1_u128_accum_u64(&t, r->d[3]); r->d[3] = secp256k1_u128_to_u64(&t); + + secp256k1_scalar_verify(r); return overflow; } static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { int overflow; secp256k1_uint128 t; + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + secp256k1_u128_from_u64(&t, a->d[0]); secp256k1_u128_accum_u64(&t, b->d[0]); r->d[0] = secp256k1_u128_to_u64(&t); secp256k1_u128_rshift(&t, 64); @@ -106,13 +118,17 @@ static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, overflow = secp256k1_u128_to_u64(&t) + secp256k1_scalar_check_overflow(r); VERIFY_CHECK(overflow == 0 || overflow == 1); secp256k1_scalar_reduce(r, overflow); + + secp256k1_scalar_verify(r); return overflow; } static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { secp256k1_uint128 t; volatile int vflag = flag; + secp256k1_scalar_verify(r); VERIFY_CHECK(bit < 256); + bit += ((uint32_t) vflag - 1) & 0x100; /* forcing (bit >> 6) > 3 makes this a noop */ secp256k1_u128_from_u64(&t, r->d[0]); secp256k1_u128_accum_u64(&t, ((uint64_t)((bit >> 6) == 0)) << (bit & 0x3F)); @@ -126,6 +142,8 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int secp256k1_u128_accum_u64(&t, r->d[3]); secp256k1_u128_accum_u64(&t, ((uint64_t)((bit >> 6) == 3)) << (bit & 0x3F)); r->d[3] = secp256k1_u128_to_u64(&t); + + secp256k1_scalar_verify(r); #ifdef VERIFY VERIFY_CHECK(secp256k1_u128_hi_u64(&t) == 0); #endif @@ -141,9 +159,13 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b if (overflow) { *overflow = over; } + + secp256k1_scalar_verify(r); } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { + secp256k1_scalar_verify(a); + secp256k1_write_be64(&bin[0], a->d[3]); secp256k1_write_be64(&bin[8], a->d[2]); secp256k1_write_be64(&bin[16], a->d[1]); @@ -151,12 +173,16 @@ static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return (a->d[0] | a->d[1] | a->d[2] | a->d[3]) == 0; } static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a) { uint64_t nonzero = 0xFFFFFFFFFFFFFFFFULL * (secp256k1_scalar_is_zero(a) == 0); secp256k1_uint128 t; + secp256k1_scalar_verify(a); + secp256k1_u128_from_u64(&t, ~a->d[0]); secp256k1_u128_accum_u64(&t, SECP256K1_N_0 + 1); r->d[0] = secp256k1_u128_to_u64(&t) & nonzero; secp256k1_u128_rshift(&t, 64); @@ -169,15 +195,21 @@ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar secp256k1_u128_accum_u64(&t, ~a->d[3]); secp256k1_u128_accum_u64(&t, SECP256K1_N_3); r->d[3] = secp256k1_u128_to_u64(&t) & nonzero; + + secp256k1_scalar_verify(r); } SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return ((a->d[0] ^ 1) | a->d[1] | a->d[2] | a->d[3]) == 0; } static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { int yes = 0; int no = 0; + secp256k1_scalar_verify(a); + no |= (a->d[3] < SECP256K1_N_H_3); yes |= (a->d[3] > SECP256K1_N_H_3) & ~no; no |= (a->d[2] < SECP256K1_N_H_2) & ~yes; /* No need for a > check. */ @@ -194,6 +226,8 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { uint64_t mask = -vflag; uint64_t nonzero = (secp256k1_scalar_is_zero(r) != 0) - 1; secp256k1_uint128 t; + secp256k1_scalar_verify(r); + secp256k1_u128_from_u64(&t, r->d[0] ^ mask); secp256k1_u128_accum_u64(&t, (SECP256K1_N_0 + 1) & mask); r->d[0] = secp256k1_u128_to_u64(&t) & nonzero; secp256k1_u128_rshift(&t, 64); @@ -206,6 +240,8 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { secp256k1_u128_accum_u64(&t, r->d[3] ^ mask); secp256k1_u128_accum_u64(&t, SECP256K1_N_3 & mask); r->d[3] = secp256k1_u128_to_u64(&t) & nonzero; + + secp256k1_scalar_verify(r); return 2 * (mask == 0) - 1; } @@ -764,23 +800,34 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { uint64_t l[8]; + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + secp256k1_scalar_mul_512(l, a, b); secp256k1_scalar_reduce_512(r, l); + + secp256k1_scalar_verify(r); } static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n) { int ret; + secp256k1_scalar_verify(r); VERIFY_CHECK(n > 0); VERIFY_CHECK(n < 16); + ret = r->d[0] & ((1 << n) - 1); r->d[0] = (r->d[0] >> n) + (r->d[1] << (64 - n)); r->d[1] = (r->d[1] >> n) + (r->d[2] << (64 - n)); r->d[2] = (r->d[2] >> n) + (r->d[3] << (64 - n)); r->d[3] = (r->d[3] >> n); + + secp256k1_scalar_verify(r); return ret; } static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) { + secp256k1_scalar_verify(k); + r1->d[0] = k->d[0]; r1->d[1] = k->d[1]; r1->d[2] = 0; @@ -789,9 +836,15 @@ static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r r2->d[1] = k->d[3]; r2->d[2] = 0; r2->d[3] = 0; + + secp256k1_scalar_verify(r1); + secp256k1_scalar_verify(r2); } SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) { + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3])) == 0; } @@ -800,7 +853,10 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, unsigned int shiftlimbs; unsigned int shiftlow; unsigned int shifthigh; + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); VERIFY_CHECK(shift >= 256); + secp256k1_scalar_mul_512(l, a, b); shiftlimbs = shift >> 6; shiftlow = shift & 0x3F; @@ -810,18 +866,24 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, r->d[2] = shift < 384 ? (l[2 + shiftlimbs] >> shiftlow | (shift < 320 && shiftlow ? (l[3 + shiftlimbs] << shifthigh) : 0)) : 0; r->d[3] = shift < 320 ? (l[3 + shiftlimbs] >> shiftlow) : 0; secp256k1_scalar_cadd_bit(r, 0, (l[(shift - 1) >> 6] >> ((shift - 1) & 0x3f)) & 1); + + secp256k1_scalar_verify(r); } static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint64_t mask0, mask1; volatile int vflag = flag; + secp256k1_scalar_verify(a); SECP256K1_CHECKMEM_CHECK_VERIFY(r->d, sizeof(r->d)); + mask0 = vflag + ~((uint64_t)0); mask1 = ~mask0; r->d[0] = (r->d[0] & mask0) | (a->d[0] & mask1); r->d[1] = (r->d[1] & mask0) | (a->d[1] & mask1); r->d[2] = (r->d[2] & mask0) | (a->d[2] & mask1); r->d[3] = (r->d[3] & mask0) | (a->d[3] & mask1); + + secp256k1_scalar_verify(r); } static void secp256k1_scalar_from_signed62(secp256k1_scalar *r, const secp256k1_modinv64_signed62 *a) { @@ -841,18 +903,13 @@ static void secp256k1_scalar_from_signed62(secp256k1_scalar *r, const secp256k1_ r->d[2] = a2 >> 4 | a3 << 58; r->d[3] = a3 >> 6 | a4 << 56; -#ifdef VERIFY - VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0); -#endif + secp256k1_scalar_verify(r); } static void secp256k1_scalar_to_signed62(secp256k1_modinv64_signed62 *r, const secp256k1_scalar *a) { const uint64_t M62 = UINT64_MAX >> 2; const uint64_t a0 = a->d[0], a1 = a->d[1], a2 = a->d[2], a3 = a->d[3]; - -#ifdef VERIFY - VERIFY_CHECK(secp256k1_scalar_check_overflow(a) == 0); -#endif + secp256k1_scalar_verify(a); r->v[0] = a0 & M62; r->v[1] = (a0 >> 62 | a1 << 2) & M62; @@ -871,10 +928,13 @@ static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif + secp256k1_scalar_verify(x); + secp256k1_scalar_to_signed62(&s, x); secp256k1_modinv64(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed62(r, &s); + secp256k1_scalar_verify(r); #ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); #endif @@ -885,16 +945,21 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif + secp256k1_scalar_verify(x); + secp256k1_scalar_to_signed62(&s, x); secp256k1_modinv64_var(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed62(r, &s); + secp256k1_scalar_verify(r); #ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); #endif } SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return !(a->d[0] & 1); } diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index 80ef3ef248..5ca1342273 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -58,16 +58,22 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig r->d[5] = 0; r->d[6] = 0; r->d[7] = 0; + + secp256k1_scalar_verify(r); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { + secp256k1_scalar_verify(a); VERIFY_CHECK((offset + count - 1) >> 5 == offset >> 5); + return (a->d[offset >> 5] >> (offset & 0x1F)) & ((1 << count) - 1); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { + secp256k1_scalar_verify(a); VERIFY_CHECK(count < 32); VERIFY_CHECK(offset + count <= 256); + if ((offset + count - 1) >> 5 == offset >> 5) { return secp256k1_scalar_get_bits(a, offset, count); } else { @@ -97,6 +103,7 @@ SECP256K1_INLINE static int secp256k1_scalar_check_overflow(const secp256k1_scal SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar *r, uint32_t overflow) { uint64_t t; VERIFY_CHECK(overflow <= 1); + t = (uint64_t)r->d[0] + overflow * SECP256K1_N_C_0; r->d[0] = t & 0xFFFFFFFFUL; t >>= 32; t += (uint64_t)r->d[1] + overflow * SECP256K1_N_C_1; @@ -113,12 +120,17 @@ SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar *r, uint32_ r->d[6] = t & 0xFFFFFFFFUL; t >>= 32; t += (uint64_t)r->d[7]; r->d[7] = t & 0xFFFFFFFFUL; + + secp256k1_scalar_verify(r); return overflow; } static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { int overflow; uint64_t t = (uint64_t)a->d[0] + b->d[0]; + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + r->d[0] = t & 0xFFFFFFFFULL; t >>= 32; t += (uint64_t)a->d[1] + b->d[1]; r->d[1] = t & 0xFFFFFFFFULL; t >>= 32; @@ -137,13 +149,17 @@ static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, overflow = t + secp256k1_scalar_check_overflow(r); VERIFY_CHECK(overflow == 0 || overflow == 1); secp256k1_scalar_reduce(r, overflow); + + secp256k1_scalar_verify(r); return overflow; } static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { uint64_t t; volatile int vflag = flag; + secp256k1_scalar_verify(r); VERIFY_CHECK(bit < 256); + bit += ((uint32_t) vflag - 1) & 0x100; /* forcing (bit >> 5) > 7 makes this a noop */ t = (uint64_t)r->d[0] + (((uint32_t)((bit >> 5) == 0)) << (bit & 0x1F)); r->d[0] = t & 0xFFFFFFFFULL; t >>= 32; @@ -161,9 +177,10 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int r->d[6] = t & 0xFFFFFFFFULL; t >>= 32; t += (uint64_t)r->d[7] + (((uint32_t)((bit >> 5) == 7)) << (bit & 0x1F)); r->d[7] = t & 0xFFFFFFFFULL; + + secp256k1_scalar_verify(r); #ifdef VERIFY VERIFY_CHECK((t >> 32) == 0); - VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0); #endif } @@ -181,9 +198,13 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b if (overflow) { *overflow = over; } + + secp256k1_scalar_verify(r); } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { + secp256k1_scalar_verify(a); + secp256k1_write_be32(&bin[0], a->d[7]); secp256k1_write_be32(&bin[4], a->d[6]); secp256k1_write_be32(&bin[8], a->d[5]); @@ -195,12 +216,16 @@ static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return (a->d[0] | a->d[1] | a->d[2] | a->d[3] | a->d[4] | a->d[5] | a->d[6] | a->d[7]) == 0; } static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a) { uint32_t nonzero = 0xFFFFFFFFUL * (secp256k1_scalar_is_zero(a) == 0); uint64_t t = (uint64_t)(~a->d[0]) + SECP256K1_N_0 + 1; + secp256k1_scalar_verify(a); + r->d[0] = t & nonzero; t >>= 32; t += (uint64_t)(~a->d[1]) + SECP256K1_N_1; r->d[1] = t & nonzero; t >>= 32; @@ -216,15 +241,21 @@ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar r->d[6] = t & nonzero; t >>= 32; t += (uint64_t)(~a->d[7]) + SECP256K1_N_7; r->d[7] = t & nonzero; + + secp256k1_scalar_verify(r); } SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return ((a->d[0] ^ 1) | a->d[1] | a->d[2] | a->d[3] | a->d[4] | a->d[5] | a->d[6] | a->d[7]) == 0; } static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { int yes = 0; int no = 0; + secp256k1_scalar_verify(a); + no |= (a->d[7] < SECP256K1_N_H_7); yes |= (a->d[7] > SECP256K1_N_H_7) & ~no; no |= (a->d[6] < SECP256K1_N_H_6) & ~yes; /* No need for a > check. */ @@ -247,6 +278,8 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { uint32_t mask = -vflag; uint32_t nonzero = 0xFFFFFFFFUL * (secp256k1_scalar_is_zero(r) == 0); uint64_t t = (uint64_t)(r->d[0] ^ mask) + ((SECP256K1_N_0 + 1) & mask); + secp256k1_scalar_verify(r); + r->d[0] = t & nonzero; t >>= 32; t += (uint64_t)(r->d[1] ^ mask) + (SECP256K1_N_1 & mask); r->d[1] = t & nonzero; t >>= 32; @@ -262,6 +295,8 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { r->d[6] = t & nonzero; t >>= 32; t += (uint64_t)(r->d[7] ^ mask) + (SECP256K1_N_7 & mask); r->d[7] = t & nonzero; + + secp256k1_scalar_verify(r); return 2 * (mask == 0) - 1; } @@ -569,14 +604,21 @@ static void secp256k1_scalar_mul_512(uint32_t *l, const secp256k1_scalar *a, con static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { uint32_t l[16]; + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + secp256k1_scalar_mul_512(l, a, b); secp256k1_scalar_reduce_512(r, l); + + secp256k1_scalar_verify(r); } static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n) { int ret; + secp256k1_scalar_verify(r); VERIFY_CHECK(n > 0); VERIFY_CHECK(n < 16); + ret = r->d[0] & ((1 << n) - 1); r->d[0] = (r->d[0] >> n) + (r->d[1] << (32 - n)); r->d[1] = (r->d[1] >> n) + (r->d[2] << (32 - n)); @@ -586,10 +628,14 @@ static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n) { r->d[5] = (r->d[5] >> n) + (r->d[6] << (32 - n)); r->d[6] = (r->d[6] >> n) + (r->d[7] << (32 - n)); r->d[7] = (r->d[7] >> n); + + secp256k1_scalar_verify(r); return ret; } static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) { + secp256k1_scalar_verify(k); + r1->d[0] = k->d[0]; r1->d[1] = k->d[1]; r1->d[2] = k->d[2]; @@ -606,9 +652,15 @@ static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r r2->d[5] = 0; r2->d[6] = 0; r2->d[7] = 0; + + secp256k1_scalar_verify(r1); + secp256k1_scalar_verify(r2); } SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) { + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3]) | (a->d[4] ^ b->d[4]) | (a->d[5] ^ b->d[5]) | (a->d[6] ^ b->d[6]) | (a->d[7] ^ b->d[7])) == 0; } @@ -617,7 +669,10 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, unsigned int shiftlimbs; unsigned int shiftlow; unsigned int shifthigh; + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); VERIFY_CHECK(shift >= 256); + secp256k1_scalar_mul_512(l, a, b); shiftlimbs = shift >> 5; shiftlow = shift & 0x1F; @@ -631,12 +686,16 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, r->d[6] = shift < 320 ? (l[6 + shiftlimbs] >> shiftlow | (shift < 288 && shiftlow ? (l[7 + shiftlimbs] << shifthigh) : 0)) : 0; r->d[7] = shift < 288 ? (l[7 + shiftlimbs] >> shiftlow) : 0; secp256k1_scalar_cadd_bit(r, 0, (l[(shift - 1) >> 5] >> ((shift - 1) & 0x1f)) & 1); + + secp256k1_scalar_verify(r); } static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint32_t mask0, mask1; volatile int vflag = flag; + secp256k1_scalar_verify(a); SECP256K1_CHECKMEM_CHECK_VERIFY(r->d, sizeof(r->d)); + mask0 = vflag + ~((uint32_t)0); mask1 = ~mask0; r->d[0] = (r->d[0] & mask0) | (a->d[0] & mask1); @@ -647,6 +706,8 @@ static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const se r->d[5] = (r->d[5] & mask0) | (a->d[5] & mask1); r->d[6] = (r->d[6] & mask0) | (a->d[6] & mask1); r->d[7] = (r->d[7] & mask0) | (a->d[7] & mask1); + + secp256k1_scalar_verify(r); } static void secp256k1_scalar_from_signed30(secp256k1_scalar *r, const secp256k1_modinv32_signed30 *a) { @@ -675,19 +736,14 @@ static void secp256k1_scalar_from_signed30(secp256k1_scalar *r, const secp256k1_ r->d[6] = a6 >> 12 | a7 << 18; r->d[7] = a7 >> 14 | a8 << 16; -#ifdef VERIFY - VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0); -#endif + secp256k1_scalar_verify(r); } static void secp256k1_scalar_to_signed30(secp256k1_modinv32_signed30 *r, const secp256k1_scalar *a) { const uint32_t M30 = UINT32_MAX >> 2; const uint32_t a0 = a->d[0], a1 = a->d[1], a2 = a->d[2], a3 = a->d[3], a4 = a->d[4], a5 = a->d[5], a6 = a->d[6], a7 = a->d[7]; - -#ifdef VERIFY - VERIFY_CHECK(secp256k1_scalar_check_overflow(a) == 0); -#endif + secp256k1_scalar_verify(a); r->v[0] = a0 & M30; r->v[1] = (a0 >> 30 | a1 << 2) & M30; @@ -710,10 +766,13 @@ static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif + secp256k1_scalar_verify(x); + secp256k1_scalar_to_signed30(&s, x); secp256k1_modinv32(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed30(r, &s); + secp256k1_scalar_verify(r); #ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); #endif @@ -724,16 +783,21 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif + secp256k1_scalar_verify(x); + secp256k1_scalar_to_signed30(&s, x); secp256k1_modinv32_var(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed30(r, &s); + secp256k1_scalar_verify(r); #ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); #endif } SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return !(a->d[0] & 1); } diff --git a/src/scalar_impl.h b/src/scalar_impl.h index 77abb83659..3eca23b4f9 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -30,6 +30,8 @@ static const secp256k1_scalar secp256k1_scalar_zero = SECP256K1_SCALAR_CONST(0, static int secp256k1_scalar_set_b32_seckey(secp256k1_scalar *r, const unsigned char *bin) { int overflow; secp256k1_scalar_set_b32(r, bin, &overflow); + + secp256k1_scalar_verify(r); return (!overflow) & (!secp256k1_scalar_is_zero(r)); } @@ -61,11 +63,16 @@ static void secp256k1_scalar_verify(const secp256k1_scalar *r) { * (arbitrarily) set r2 = k + 5 (mod n) and r1 = k - r2 * lambda (mod n). */ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT r1, secp256k1_scalar * SECP256K1_RESTRICT r2, const secp256k1_scalar * SECP256K1_RESTRICT k) { + secp256k1_scalar_verify(k); VERIFY_CHECK(r1 != k); VERIFY_CHECK(r2 != k); VERIFY_CHECK(r1 != r2); + *r2 = (*k + 5) % EXHAUSTIVE_TEST_ORDER; *r1 = (*k + (EXHAUSTIVE_TEST_ORDER - *r2) * EXHAUSTIVE_TEST_LAMBDA) % EXHAUSTIVE_TEST_ORDER; + + secp256k1_scalar_verify(r1); + secp256k1_scalar_verify(r2); } #else /** @@ -148,9 +155,11 @@ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT 0xE4437ED6UL, 0x010E8828UL, 0x6F547FA9UL, 0x0ABFE4C4UL, 0x221208ACUL, 0x9DF506C6UL, 0x1571B4AEUL, 0x8AC47F71UL ); + secp256k1_scalar_verify(k); VERIFY_CHECK(r1 != k); VERIFY_CHECK(r2 != k); VERIFY_CHECK(r1 != r2); + /* these _var calls are constant time since the shift amount is constant */ secp256k1_scalar_mul_shift_var(&c1, k, &g1, 384); secp256k1_scalar_mul_shift_var(&c2, k, &g2, 384); @@ -161,6 +170,8 @@ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT secp256k1_scalar_negate(r1, r1); secp256k1_scalar_add(r1, r1, k); + secp256k1_scalar_verify(r1); + secp256k1_scalar_verify(r2); #ifdef VERIFY secp256k1_scalar_split_lambda_verify(r1, r2, k); #endif diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 09343c4935..e2356a5be1 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -14,6 +14,8 @@ #include SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return !(*a & 1); } @@ -21,9 +23,13 @@ SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { *r = SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v) { *r = v % EXHAUSTIVE_TEST_ORDER; + + secp256k1_scalar_verify(r); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { + secp256k1_scalar_verify(a); + if (offset < 32) return ((*a >> offset) & ((((uint32_t)1) << count) - 1)); else @@ -31,24 +37,34 @@ SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_s } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { + secp256k1_scalar_verify(a); + return secp256k1_scalar_get_bits(a, offset, count); } SECP256K1_INLINE static int secp256k1_scalar_check_overflow(const secp256k1_scalar *a) { return *a >= EXHAUSTIVE_TEST_ORDER; } static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + *r = (*a + *b) % EXHAUSTIVE_TEST_ORDER; + + secp256k1_scalar_verify(r); return *r < *b; } static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { + secp256k1_scalar_verify(r); + if (flag && bit < 32) *r += ((uint32_t)1 << bit); + + secp256k1_scalar_verify(r); #ifdef VERIFY VERIFY_CHECK(bit < 32); /* Verify that adding (1 << bit) will not overflow any in-range scalar *r by overflowing the underlying uint32_t. */ VERIFY_CHECK(((uint32_t)1 << bit) - 1 <= UINT32_MAX - EXHAUSTIVE_TEST_ORDER); - VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0); #endif } @@ -64,82 +80,129 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b } } if (overflow) *overflow = over; + + secp256k1_scalar_verify(r); } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { + secp256k1_scalar_verify(a); + memset(bin, 0, 32); bin[28] = *a >> 24; bin[29] = *a >> 16; bin[30] = *a >> 8; bin[31] = *a; } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return *a == 0; } static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + if (*a == 0) { *r = 0; } else { *r = EXHAUSTIVE_TEST_ORDER - *a; } + + secp256k1_scalar_verify(r); } SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return *a == 1; } static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + return *a > EXHAUSTIVE_TEST_ORDER / 2; } static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { + secp256k1_scalar_verify(r); + if (flag) secp256k1_scalar_negate(r, r); + + secp256k1_scalar_verify(r); return flag ? -1 : 1; } static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + *r = (*a * *b) % EXHAUSTIVE_TEST_ORDER; + + secp256k1_scalar_verify(r); } static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n) { int ret; + secp256k1_scalar_verify(r); VERIFY_CHECK(n > 0); VERIFY_CHECK(n < 16); + ret = *r & ((1 << n) - 1); *r >>= n; + + secp256k1_scalar_verify(r); return ret; } static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + *r1 = *a; *r2 = 0; + + secp256k1_scalar_verify(r1); + secp256k1_scalar_verify(r2); } SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) { + secp256k1_scalar_verify(a); + secp256k1_scalar_verify(b); + return *a == *b; } static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint32_t mask0, mask1; volatile int vflag = flag; + secp256k1_scalar_verify(a); SECP256K1_CHECKMEM_CHECK_VERIFY(r, sizeof(*r)); + mask0 = vflag + ~((uint32_t)0); mask1 = ~mask0; *r = (*r & mask0) | (*a & mask1); + + secp256k1_scalar_verify(r); } static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar *x) { int i; *r = 0; + secp256k1_scalar_verify(x); + for (i = 0; i < EXHAUSTIVE_TEST_ORDER; i++) if ((i * *x) % EXHAUSTIVE_TEST_ORDER == 1) *r = i; + + secp256k1_scalar_verify(r); /* If this VERIFY_CHECK triggers we were given a noninvertible scalar (and thus * have a composite group order; fix it in exhaustive_tests.c). */ VERIFY_CHECK(*r != 0); } static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_scalar *x) { + secp256k1_scalar_verify(x); + secp256k1_scalar_inverse(r, x); + + secp256k1_scalar_verify(r); } #endif /* SECP256K1_SCALAR_REPR_IMPL_H */ From c83afa66e0c324e42d13adff0e4f7db9b2868788 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Sun, 5 Dec 2021 17:59:33 +0700 Subject: [PATCH 211/557] Tighten group magnitude limits - adjust test methods that randomize magnitudes Co-authored-by: Sebastian Falbesoner Co-authored-by: Jonas Nick --- src/group.h | 10 +++++----- src/tests.c | 52 ++++++++++++++++++++++++++++++++++++++-------------- 2 files changed, 43 insertions(+), 19 deletions(-) diff --git a/src/group.h b/src/group.h index e39de8a49e..86eb9e1f82 100644 --- a/src/group.h +++ b/src/group.h @@ -46,11 +46,11 @@ typedef struct { /** Maximum allowed magnitudes for group element coordinates * in affine (x, y) and jacobian (x, y, z) representation. */ -#define SECP256K1_GE_X_MAGNITUDE_MAX 8 -#define SECP256K1_GE_Y_MAGNITUDE_MAX 8 -#define SECP256K1_GEJ_X_MAGNITUDE_MAX 8 -#define SECP256K1_GEJ_Y_MAGNITUDE_MAX 8 -#define SECP256K1_GEJ_Z_MAGNITUDE_MAX 8 +#define SECP256K1_GE_X_MAGNITUDE_MAX 4 +#define SECP256K1_GE_Y_MAGNITUDE_MAX 3 +#define SECP256K1_GEJ_X_MAGNITUDE_MAX 4 +#define SECP256K1_GEJ_Y_MAGNITUDE_MAX 4 +#define SECP256K1_GEJ_Z_MAGNITUDE_MAX 1 /** Set a group element equal to the point with given X and Y coordinates */ static void secp256k1_ge_set_xy(secp256k1_ge *r, const secp256k1_fe *x, const secp256k1_fe *y); diff --git a/src/tests.c b/src/tests.c index 920d31b481..408d14a3fd 100644 --- a/src/tests.c +++ b/src/tests.c @@ -89,9 +89,9 @@ static void uncounting_illegal_callback_fn(const char* str, void* data) { (*p)--; } -static void random_field_element_magnitude(secp256k1_fe *fe) { +static void random_field_element_magnitude(secp256k1_fe *fe, int m) { secp256k1_fe zero; - int n = secp256k1_testrand_int(9); + int n = secp256k1_testrand_int(m + 1); secp256k1_fe_normalize(fe); if (n == 0) { return; @@ -121,6 +121,30 @@ static void random_fe_non_zero_test(secp256k1_fe *fe) { } while(secp256k1_fe_is_zero(fe)); } +static void random_fe_magnitude(secp256k1_fe *fe) { + random_field_element_magnitude(fe, 8); +} + +static void random_ge_x_magnitude(secp256k1_ge *ge) { + random_field_element_magnitude(&ge->x, SECP256K1_GE_X_MAGNITUDE_MAX); +} + +static void random_ge_y_magnitude(secp256k1_ge *ge) { + random_field_element_magnitude(&ge->y, SECP256K1_GE_Y_MAGNITUDE_MAX); +} + +static void random_gej_x_magnitude(secp256k1_gej *gej) { + random_field_element_magnitude(&gej->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); +} + +static void random_gej_y_magnitude(secp256k1_gej *gej) { + random_field_element_magnitude(&gej->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); +} + +static void random_gej_z_magnitude(secp256k1_gej *gej) { + random_field_element_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); +} + static void random_group_element_test(secp256k1_ge *ge) { secp256k1_fe fe; do { @@ -3279,13 +3303,13 @@ static void run_fe_mul(void) { for (i = 0; i < 100 * COUNT; ++i) { secp256k1_fe a, b, c, d; random_fe(&a); - random_field_element_magnitude(&a); + random_fe_magnitude(&a); random_fe(&b); - random_field_element_magnitude(&b); + random_fe_magnitude(&b); random_fe_test(&c); - random_field_element_magnitude(&c); + random_fe_magnitude(&c); random_fe_test(&d); - random_field_element_magnitude(&d); + random_fe_magnitude(&d); test_fe_mul(&a, &a, 1); test_fe_mul(&c, &c, 1); test_fe_mul(&a, &b, 0); @@ -3759,17 +3783,17 @@ static void test_ge(void) { secp256k1_gej_set_ge(&gej[3 + 4 * i], &ge[3 + 4 * i]); random_group_element_jacobian_test(&gej[4 + 4 * i], &ge[4 + 4 * i]); for (j = 0; j < 4; j++) { - random_field_element_magnitude(&ge[1 + j + 4 * i].x); - random_field_element_magnitude(&ge[1 + j + 4 * i].y); - random_field_element_magnitude(&gej[1 + j + 4 * i].x); - random_field_element_magnitude(&gej[1 + j + 4 * i].y); - random_field_element_magnitude(&gej[1 + j + 4 * i].z); + random_ge_x_magnitude(&ge[1 + j + 4 * i]); + random_ge_y_magnitude(&ge[1 + j + 4 * i]); + random_gej_x_magnitude(&gej[1 + j + 4 * i]); + random_gej_y_magnitude(&gej[1 + j + 4 * i]); + random_gej_z_magnitude(&gej[1 + j + 4 * i]); } } /* Generate random zf, and zfi2 = 1/zf^2, zfi3 = 1/zf^3 */ random_fe_non_zero_test(&zf); - random_field_element_magnitude(&zf); + random_fe_magnitude(&zf); secp256k1_fe_inv_var(&zfi3, &zf); secp256k1_fe_sqr(&zfi2, &zfi3); secp256k1_fe_mul(&zfi3, &zfi3, &zfi2); @@ -3805,8 +3829,8 @@ static void test_ge(void) { secp256k1_ge ge2_zfi = ge[i2]; /* the second term with x and y rescaled for z = 1/zf */ secp256k1_fe_mul(&ge2_zfi.x, &ge2_zfi.x, &zfi2); secp256k1_fe_mul(&ge2_zfi.y, &ge2_zfi.y, &zfi3); - random_field_element_magnitude(&ge2_zfi.x); - random_field_element_magnitude(&ge2_zfi.y); + random_ge_x_magnitude(&ge2_zfi); + random_ge_y_magnitude(&ge2_zfi); secp256k1_gej_add_zinv_var(&resj, &gej[i1], &ge2_zfi, &zf); ge_equals_gej(&ref, &resj); } From b7c685e74adbd83937990e90f076600fabf8ccf0 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Sun, 5 Dec 2021 19:11:56 +0700 Subject: [PATCH 212/557] Save _normalize_weak calls in group add methods Also update the operations count comments in each of the affected functions accordingly and remove a redundant VERIFY_CHECK in secp256k1_gej_add_ge (the infinity value range check [0,1] is already covered by secp256k1_gej_verify above). Co-authored-by: Sebastian Falbesoner Co-authored-by: Tim Ruffing Co-authored-by: Jonas Nick --- src/group_impl.h | 55 ++++++++++++++++++++++++------------------------ 1 file changed, 28 insertions(+), 27 deletions(-) diff --git a/src/group_impl.h b/src/group_impl.h index 64cafa55b5..dd8a5d0ca9 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -534,7 +534,7 @@ static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, cons } static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, secp256k1_fe *rzr) { - /* 8 mul, 3 sqr, 13 add/negate/normalize_weak/normalizes_to_zero (ignoring special cases) */ + /* Operations: 8 mul, 3 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z12, u1, u2, s1, s2, h, i, h2, h3, t; secp256k1_gej_verify(a); secp256k1_ge_verify(b); @@ -553,11 +553,11 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c } secp256k1_fe_sqr(&z12, &a->z); - u1 = a->x; secp256k1_fe_normalize_weak(&u1); + u1 = a->x; secp256k1_fe_mul(&u2, &b->x, &z12); - s1 = a->y; secp256k1_fe_normalize_weak(&s1); + s1 = a->y; secp256k1_fe_mul(&s2, &b->y, &z12); secp256k1_fe_mul(&s2, &s2, &a->z); - secp256k1_fe_negate(&h, &u1, 1); secp256k1_fe_add(&h, &u2); + secp256k1_fe_negate(&h, &u1, SECP256K1_GEJ_X_MAGNITUDE_MAX); secp256k1_fe_add(&h, &u2); secp256k1_fe_negate(&i, &s2, 1); secp256k1_fe_add(&i, &s1); if (secp256k1_fe_normalizes_to_zero_var(&h)) { if (secp256k1_fe_normalizes_to_zero_var(&i)) { @@ -597,7 +597,7 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c } static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, const secp256k1_fe *bzinv) { - /* 9 mul, 3 sqr, 13 add/negate/normalize_weak/normalizes_to_zero (ignoring special cases) */ + /* Operations: 9 mul, 3 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe az, z12, u1, u2, s1, s2, h, i, h2, h3, t; secp256k1_gej_verify(a); secp256k1_ge_verify(b); @@ -630,11 +630,11 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe_mul(&az, &a->z, bzinv); secp256k1_fe_sqr(&z12, &az); - u1 = a->x; secp256k1_fe_normalize_weak(&u1); + u1 = a->x; secp256k1_fe_mul(&u2, &b->x, &z12); - s1 = a->y; secp256k1_fe_normalize_weak(&s1); + s1 = a->y; secp256k1_fe_mul(&s2, &b->y, &z12); secp256k1_fe_mul(&s2, &s2, &az); - secp256k1_fe_negate(&h, &u1, 1); secp256k1_fe_add(&h, &u2); + secp256k1_fe_negate(&h, &u1, SECP256K1_GEJ_X_MAGNITUDE_MAX); secp256k1_fe_add(&h, &u2); secp256k1_fe_negate(&i, &s2, 1); secp256k1_fe_add(&i, &s1); if (secp256k1_fe_normalizes_to_zero_var(&h)) { if (secp256k1_fe_normalizes_to_zero_var(&i)) { @@ -668,14 +668,13 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b) { - /* Operations: 7 mul, 5 sqr, 24 add/cmov/half/mul_int/negate/normalize_weak/normalizes_to_zero */ + /* Operations: 7 mul, 5 sqr, 21 add/cmov/half/mul_int/negate/normalizes_to_zero */ secp256k1_fe zz, u1, u2, s1, s2, t, tt, m, n, q, rr; secp256k1_fe m_alt, rr_alt; int degenerate; secp256k1_gej_verify(a); secp256k1_ge_verify(b); VERIFY_CHECK(!b->infinity); - VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); /* In: * Eric Brier and Marc Joye, Weierstrass Elliptic Curves and Side-Channel Attacks. @@ -728,17 +727,17 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const */ secp256k1_fe_sqr(&zz, &a->z); /* z = Z1^2 */ - u1 = a->x; secp256k1_fe_normalize_weak(&u1); /* u1 = U1 = X1*Z2^2 (1) */ + u1 = a->x; /* u1 = U1 = X1*Z2^2 (GEJ_X_M) */ secp256k1_fe_mul(&u2, &b->x, &zz); /* u2 = U2 = X2*Z1^2 (1) */ - s1 = a->y; secp256k1_fe_normalize_weak(&s1); /* s1 = S1 = Y1*Z2^3 (1) */ + s1 = a->y; /* s1 = S1 = Y1*Z2^3 (GEJ_Y_M) */ secp256k1_fe_mul(&s2, &b->y, &zz); /* s2 = Y2*Z1^2 (1) */ secp256k1_fe_mul(&s2, &s2, &a->z); /* s2 = S2 = Y2*Z1^3 (1) */ - t = u1; secp256k1_fe_add(&t, &u2); /* t = T = U1+U2 (2) */ - m = s1; secp256k1_fe_add(&m, &s2); /* m = M = S1+S2 (2) */ + t = u1; secp256k1_fe_add(&t, &u2); /* t = T = U1+U2 (GEJ_X_M+1) */ + m = s1; secp256k1_fe_add(&m, &s2); /* m = M = S1+S2 (GEJ_Y_M+1) */ secp256k1_fe_sqr(&rr, &t); /* rr = T^2 (1) */ - secp256k1_fe_negate(&m_alt, &u2, 1); /* Malt = -X2*Z1^2 */ - secp256k1_fe_mul(&tt, &u1, &m_alt); /* tt = -U1*U2 (2) */ - secp256k1_fe_add(&rr, &tt); /* rr = R = T^2-U1*U2 (3) */ + secp256k1_fe_negate(&m_alt, &u2, 1); /* Malt = -X2*Z1^2 (2) */ + secp256k1_fe_mul(&tt, &u1, &m_alt); /* tt = -U1*U2 (1) */ + secp256k1_fe_add(&rr, &tt); /* rr = R = T^2-U1*U2 (2) */ /* If lambda = R/M = R/0 we have a problem (except in the "trivial" * case that Z = z1z2 = 0, and this is special-cased later on). */ degenerate = secp256k1_fe_normalizes_to_zero(&m); @@ -748,24 +747,25 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const * non-indeterminate expression for lambda is (y1 - y2)/(x1 - x2), * so we set R/M equal to this. */ rr_alt = s1; - secp256k1_fe_mul_int(&rr_alt, 2); /* rr = Y1*Z2^3 - Y2*Z1^3 (2) */ - secp256k1_fe_add(&m_alt, &u1); /* Malt = X1*Z2^2 - X2*Z1^2 */ + secp256k1_fe_mul_int(&rr_alt, 2); /* rr_alt = Y1*Z2^3 - Y2*Z1^3 (GEJ_Y_M*2) */ + secp256k1_fe_add(&m_alt, &u1); /* Malt = X1*Z2^2 - X2*Z1^2 (GEJ_X_M+2) */ - secp256k1_fe_cmov(&rr_alt, &rr, !degenerate); - secp256k1_fe_cmov(&m_alt, &m, !degenerate); + secp256k1_fe_cmov(&rr_alt, &rr, !degenerate); /* rr_alt (GEJ_Y_M*2) */ + secp256k1_fe_cmov(&m_alt, &m, !degenerate); /* m_alt (GEJ_X_M+2) */ /* Now Ralt / Malt = lambda and is guaranteed not to be Ralt / 0. * From here on out Ralt and Malt represent the numerator * and denominator of lambda; R and M represent the explicit * expressions x1^2 + x2^2 + x1x2 and y1 + y2. */ secp256k1_fe_sqr(&n, &m_alt); /* n = Malt^2 (1) */ - secp256k1_fe_negate(&q, &t, 2); /* q = -T (3) */ + secp256k1_fe_negate(&q, &t, + SECP256K1_GEJ_X_MAGNITUDE_MAX + 1); /* q = -T (GEJ_X_M+2) */ secp256k1_fe_mul(&q, &q, &n); /* q = Q = -T*Malt^2 (1) */ /* These two lines use the observation that either M == Malt or M == 0, * so M^3 * Malt is either Malt^4 (which is computed by squaring), or * zero (which is "computed" by cmov). So the cost is one squaring * versus two multiplications. */ - secp256k1_fe_sqr(&n, &n); - secp256k1_fe_cmov(&n, &m, degenerate); /* n = M^3 * Malt (2) */ + secp256k1_fe_sqr(&n, &n); /* n = Malt^4 (1) */ + secp256k1_fe_cmov(&n, &m, degenerate); /* n = M^3 * Malt (GEJ_Y_M+1) */ secp256k1_fe_sqr(&t, &rr_alt); /* t = Ralt^2 (1) */ secp256k1_fe_mul(&r->z, &a->z, &m_alt); /* r->z = Z3 = Malt*Z (1) */ secp256k1_fe_add(&t, &q); /* t = Ralt^2 + Q (2) */ @@ -773,9 +773,10 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_fe_mul_int(&t, 2); /* t = 2*X3 (4) */ secp256k1_fe_add(&t, &q); /* t = 2*X3 + Q (5) */ secp256k1_fe_mul(&t, &t, &rr_alt); /* t = Ralt*(2*X3 + Q) (1) */ - secp256k1_fe_add(&t, &n); /* t = Ralt*(2*X3 + Q) + M^3*Malt (3) */ - secp256k1_fe_negate(&r->y, &t, 3); /* r->y = -(Ralt*(2*X3 + Q) + M^3*Malt) (4) */ - secp256k1_fe_half(&r->y); /* r->y = Y3 = -(Ralt*(2*X3 + Q) + M^3*Malt)/2 (3) */ + secp256k1_fe_add(&t, &n); /* t = Ralt*(2*X3 + Q) + M^3*Malt (GEJ_Y_M+2) */ + secp256k1_fe_negate(&r->y, &t, + SECP256K1_GEJ_Y_MAGNITUDE_MAX + 2); /* r->y = -(Ralt*(2*X3 + Q) + M^3*Malt) (GEJ_Y_M+3) */ + secp256k1_fe_half(&r->y); /* r->y = Y3 = -(Ralt*(2*X3 + Q) + M^3*Malt)/2 ((GEJ_Y_M+3)/2 + 1) */ /* In case a->infinity == 1, replace r with (b->x, b->y, 1). */ secp256k1_fe_cmov(&r->x, &b->x, a->infinity); From a1bd4971d6c6113f140143275141adb336fc3702 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Tue, 1 Aug 2023 02:40:21 +0200 Subject: [PATCH 213/557] refactor: take use of `secp256k1_scalar_{zero,one}` constants (part 2) --- src/bench_ecmult.c | 3 +-- src/tests.c | 56 ++++++++++++++++++++-------------------------- 2 files changed, 25 insertions(+), 34 deletions(-) diff --git a/src/bench_ecmult.c b/src/bench_ecmult.c index 8818aa81b5..7dc52ad87b 100644 --- a/src/bench_ecmult.c +++ b/src/bench_ecmult.c @@ -244,7 +244,6 @@ static void generate_scalar(uint32_t num, secp256k1_scalar* scalar) { static void run_ecmult_multi_bench(bench_data* data, size_t count, int includes_g, int num_iters) { char str[32]; - static const secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); size_t iters = 1 + num_iters / count; size_t iter; @@ -262,7 +261,7 @@ static void run_ecmult_multi_bench(bench_data* data, size_t count, int includes_ secp256k1_scalar_add(&total, &total, &tmp); } secp256k1_scalar_negate(&total, &total); - secp256k1_ecmult(&data->expected_output[iter], NULL, &zero, &total); + secp256k1_ecmult(&data->expected_output[iter], NULL, &secp256k1_scalar_zero, &total); } /* Run the benchmark. */ diff --git a/src/tests.c b/src/tests.c index 920d31b481..f08b61c84c 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4092,7 +4092,7 @@ static void run_gej(void) { } static void test_ec_combine(void) { - secp256k1_scalar sum = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); + secp256k1_scalar sum = secp256k1_scalar_zero; secp256k1_pubkey data[6]; const secp256k1_pubkey* d[6]; secp256k1_pubkey sd; @@ -4264,8 +4264,8 @@ static void run_ecmult_chain(void) { static const secp256k1_scalar xf = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0x1337); static const secp256k1_scalar gf = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0x7113); /* accumulators with the resulting coefficients to A and G */ - secp256k1_scalar ae = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 1); - secp256k1_scalar ge = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); + secp256k1_scalar ae = secp256k1_scalar_one; + secp256k1_scalar ge = secp256k1_scalar_zero; /* actual points */ secp256k1_gej x; secp256k1_gej x2; @@ -4306,8 +4306,6 @@ static void test_point_times_order(const secp256k1_gej *point) { /* X * (point + G) + (order-X) * (pointer + G) = 0 */ secp256k1_scalar x; secp256k1_scalar nx; - secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); - secp256k1_scalar one = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 1); secp256k1_gej res1, res2; secp256k1_ge res3; unsigned char pub[65]; @@ -4325,13 +4323,13 @@ static void test_point_times_order(const secp256k1_gej *point) { psize = 65; CHECK(secp256k1_eckey_pubkey_serialize(&res3, pub, &psize, 1) == 0); /* check zero/one edge cases */ - secp256k1_ecmult(&res1, point, &zero, &zero); + secp256k1_ecmult(&res1, point, &secp256k1_scalar_zero, &secp256k1_scalar_zero); secp256k1_ge_set_gej(&res3, &res1); CHECK(secp256k1_ge_is_infinity(&res3)); - secp256k1_ecmult(&res1, point, &one, &zero); + secp256k1_ecmult(&res1, point, &secp256k1_scalar_one, &secp256k1_scalar_zero); secp256k1_ge_set_gej(&res3, &res1); ge_equals_gej(&res3, point); - secp256k1_ecmult(&res1, point, &zero, &one); + secp256k1_ecmult(&res1, point, &secp256k1_scalar_zero, &secp256k1_scalar_one); secp256k1_ge_set_gej(&res3, &res1); ge_equals_ge(&res3, &secp256k1_ge_const_g); } @@ -4371,7 +4369,6 @@ static void test_ecmult_target(const secp256k1_scalar* target, int mode) { secp256k1_scalar n1, n2; secp256k1_ge p; secp256k1_gej pj, p1j, p2j, ptj; - static const secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); /* Generate random n1,n2 such that n1+n2 = -target. */ random_scalar_order_test(&n1); @@ -4390,9 +4387,9 @@ static void test_ecmult_target(const secp256k1_scalar* target, int mode) { secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &p2j, &n2); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &ptj, target); } else if (mode == 1) { - secp256k1_ecmult(&p1j, &pj, &n1, &zero); - secp256k1_ecmult(&p2j, &pj, &n2, &zero); - secp256k1_ecmult(&ptj, &pj, target, &zero); + secp256k1_ecmult(&p1j, &pj, &n1, &secp256k1_scalar_zero); + secp256k1_ecmult(&p2j, &pj, &n2, &secp256k1_scalar_zero); + secp256k1_ecmult(&ptj, &pj, target, &secp256k1_scalar_zero); } else { secp256k1_ecmult_const(&p1j, &p, &n1); secp256k1_ecmult_const(&p2j, &p, &n2); @@ -4487,19 +4484,17 @@ static void ecmult_const_commutativity(void) { } static void ecmult_const_mult_zero_one(void) { - secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); - secp256k1_scalar one = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 1); secp256k1_scalar negone; secp256k1_gej res1; secp256k1_ge res2; secp256k1_ge point; - secp256k1_scalar_negate(&negone, &one); + secp256k1_scalar_negate(&negone, &secp256k1_scalar_one); random_group_element_test(&point); - secp256k1_ecmult_const(&res1, &point, &zero); + secp256k1_ecmult_const(&res1, &point, &secp256k1_scalar_zero); secp256k1_ge_set_gej(&res2, &res1); CHECK(secp256k1_ge_is_infinity(&res2)); - secp256k1_ecmult_const(&res1, &point, &one); + secp256k1_ecmult_const(&res1, &point, &secp256k1_scalar_one); secp256k1_ge_set_gej(&res2, &res1); ge_equals_ge(&res2, &point); secp256k1_ecmult_const(&res1, &point, &negone); @@ -4854,7 +4849,7 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { * scalars[0..filled-1] and gejs[0..filled-1] are the scalars and points * which form its normal inputs. */ int filled = 0; - secp256k1_scalar g_scalar = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); + secp256k1_scalar g_scalar = secp256k1_scalar_zero; secp256k1_scalar scalars[128]; secp256k1_gej gejs[128]; /* The expected result, and the computed result. */ @@ -5465,16 +5460,15 @@ static void test_ecmult_accumulate(secp256k1_sha256* acc, const secp256k1_scalar /* Compute x*G in 6 different ways, serialize it uncompressed, and feed it into acc. */ secp256k1_gej rj1, rj2, rj3, rj4, rj5, rj6, gj, infj; secp256k1_ge r; - const secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); unsigned char bytes[65]; size_t size = 65; secp256k1_gej_set_ge(&gj, &secp256k1_ge_const_g); secp256k1_gej_set_infinity(&infj); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &rj1, x); - secp256k1_ecmult(&rj2, &gj, x, &zero); - secp256k1_ecmult(&rj3, &infj, &zero, x); + secp256k1_ecmult(&rj2, &gj, x, &secp256k1_scalar_zero); + secp256k1_ecmult(&rj3, &infj, &secp256k1_scalar_zero, x); secp256k1_ecmult_multi_var(NULL, scratch, &rj4, x, NULL, NULL, 0); - secp256k1_ecmult_multi_var(NULL, scratch, &rj5, &zero, test_ecmult_accumulate_cb, (void*)x, 1); + secp256k1_ecmult_multi_var(NULL, scratch, &rj5, &secp256k1_scalar_zero, test_ecmult_accumulate_cb, (void*)x, 1); secp256k1_ecmult_const(&rj6, &secp256k1_ge_const_g, x); secp256k1_ge_set_gej_var(&r, &rj1); ge_equals_gej(&r, &rj2); @@ -7599,33 +7593,31 @@ static void fe_storage_cmov_test(void) { } static void scalar_cmov_test(void) { - static const secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); - static const secp256k1_scalar one = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 1); static const secp256k1_scalar max = SECP256K1_SCALAR_CONST( 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL, 0xFFFFFFFFUL ); secp256k1_scalar r = max; - secp256k1_scalar a = zero; + secp256k1_scalar a = secp256k1_scalar_zero; secp256k1_scalar_cmov(&r, &a, 0); CHECK(secp256k1_memcmp_var(&r, &max, sizeof(r)) == 0); - r = zero; a = max; + r = secp256k1_scalar_zero; a = max; secp256k1_scalar_cmov(&r, &a, 1); CHECK(secp256k1_memcmp_var(&r, &max, sizeof(r)) == 0); - a = zero; + a = secp256k1_scalar_zero; secp256k1_scalar_cmov(&r, &a, 1); - CHECK(secp256k1_memcmp_var(&r, &zero, sizeof(r)) == 0); + CHECK(secp256k1_memcmp_var(&r, &secp256k1_scalar_zero, sizeof(r)) == 0); - a = one; + a = secp256k1_scalar_one; secp256k1_scalar_cmov(&r, &a, 1); - CHECK(secp256k1_memcmp_var(&r, &one, sizeof(r)) == 0); + CHECK(secp256k1_memcmp_var(&r, &secp256k1_scalar_one, sizeof(r)) == 0); - r = one; a = zero; + r = secp256k1_scalar_one; a = secp256k1_scalar_zero; secp256k1_scalar_cmov(&r, &a, 0); - CHECK(secp256k1_memcmp_var(&r, &one, sizeof(r)) == 0); + CHECK(secp256k1_memcmp_var(&r, &secp256k1_scalar_one, sizeof(r)) == 0); } static void ge_storage_cmov_test(void) { From a2f7ccdecc4721d972f36d6aacc5f0c85ce0557d Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 9 Aug 2023 12:54:18 +0100 Subject: [PATCH 214/557] ci: Run "Windows (VS 2022)" job on GitHub Actions --- .github/workflows/ci.yml | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 .github/workflows/ci.yml diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml new file mode 100644 index 0000000000..26a1d4bd7f --- /dev/null +++ b/.github/workflows/ci.yml @@ -0,0 +1,39 @@ +name: CI +on: + pull_request: + push: + branches: + - '**' + tags-ignore: + - '**' + +env: + SECP256K1_BENCH_ITERS: 2 + +jobs: + win64-native: + name: "x86_64: Windows (VS 2022)" + # See: https://github.com/actions/runner-images#available-images. + runs-on: windows-2022 + + strategy: + fail-fast: false + matrix: + build_shared_libs: ['ON', 'OFF'] + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: Generate buildsystem + run: cmake -E env CFLAGS="/WX" cmake -B build -A x64 -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON -DBUILD_SHARED_LIBS=${{ matrix.build_shared_libs }} + + - name: Build + run: cmake --build build --config RelWithDebInfo -- /p:UseMultiToolTask=true /maxCpuCount + + - name: Check + run: | + ctest -C RelWithDebInfo --test-dir build -j ([int]$env:NUMBER_OF_PROCESSORS + 1) + build\src\RelWithDebInfo\bench_ecmult.exe + build\src\RelWithDebInfo\bench_internal.exe + build\src\RelWithDebInfo\bench.exe From 5ee039bb58962745e5f861ae6603b5961adcd1e3 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 9 Aug 2023 14:48:11 +0100 Subject: [PATCH 215/557] ci: Remove "Windows (VS 2022)" task from Cirrus CI --- .cirrus.yml | 32 -------------------------------- 1 file changed, 32 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 7fda6d3bd7..1a7a04e01e 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -378,35 +378,3 @@ task: test_script: - cd sage - sage prove_group_implementations.sage - -task: - name: "x86_64: Windows (VS 2022)" - windows_container: - image: cirrusci/windowsservercore:visualstudio2022 - cpu: 4 - memory: 3840MB - env: - x64_NATIVE_TOOLS: '"C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvars64.bat"' - # Ignore MSBuild warning MSB8029. - # See: https://learn.microsoft.com/en-us/visualstudio/msbuild/errors/msb8029?view=vs-2022 - IgnoreWarnIntDirInTempDetected: 'true' - matrix: - - env: - BUILD_SHARED_LIBS: ON - - env: - BUILD_SHARED_LIBS: OFF - git_show_script: - # Print commit to allow reproducing the job outside of CI. - - git show --no-patch - configure_script: - - '%x64_NATIVE_TOOLS%' - - cmake -E env CFLAGS="/WX" cmake -A x64 -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON -DBUILD_SHARED_LIBS=%BUILD_SHARED_LIBS% - build_script: - - '%x64_NATIVE_TOOLS%' - - cmake --build build --config RelWithDebInfo -- -property:UseMultiToolTask=true;CL_MPcount=5 - check_script: - - '%x64_NATIVE_TOOLS%' - - ctest -C RelWithDebInfo --test-dir build -j 5 - - build\src\RelWithDebInfo\bench_ecmult.exe - - build\src\RelWithDebInfo\bench_internal.exe - - build\src\RelWithDebInfo\bench.exe From f1774e5ec4a49db5762ecccbabd7fb5db0a7fb2b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 9 Aug 2023 15:08:24 +0100 Subject: [PATCH 216/557] ci, gha: Make MSVC job presentation more explicit --- .github/workflows/ci.yml | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 26a1d4bd7f..0847e79edd 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -12,21 +12,21 @@ env: jobs: win64-native: - name: "x86_64: Windows (VS 2022)" + name: "x86_64: Windows, VS 2022" # See: https://github.com/actions/runner-images#available-images. runs-on: windows-2022 strategy: fail-fast: false matrix: - build_shared_libs: ['ON', 'OFF'] + lib_type: ['shared', 'static'] steps: - name: Checkout uses: actions/checkout@v3 - name: Generate buildsystem - run: cmake -E env CFLAGS="/WX" cmake -B build -A x64 -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON -DBUILD_SHARED_LIBS=${{ matrix.build_shared_libs }} + run: cmake -E env CFLAGS="/WX" cmake -B build -A x64 -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON -DBUILD_SHARED_LIBS=${{ matrix.lib_type == 'shared' && 'ON' || 'OFF' }} - name: Build run: cmake --build build --config RelWithDebInfo -- /p:UseMultiToolTask=true /maxCpuCount From c8d9914fb1bf2790e6837794111614b640757ea3 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 14 Aug 2023 14:25:09 +0100 Subject: [PATCH 217/557] ci, gha: Run "SageMath prover" job on GitHub Actions --- .github/workflows/ci.yml | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 0847e79edd..ea55b04671 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -37,3 +37,19 @@ jobs: build\src\RelWithDebInfo\bench_ecmult.exe build\src\RelWithDebInfo\bench_internal.exe build\src\RelWithDebInfo\bench.exe + + sage: + name: "SageMath prover" + runs-on: ubuntu-latest + container: + image: sagemath/sagemath:latest + options: --user root + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + run: | + cd sage + sage prove_group_implementations.sage From 8408dfdc4cfcc5cf87ac0a7d229f8a1c1d63128a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 14 Aug 2023 14:28:15 +0100 Subject: [PATCH 218/557] Revert "ci: Run sage prover on CI" This reverts commit d8d54859ed138a8ed9a8486d847155211c9f4a7d. --- .cirrus.yml | 7 ------- ci/linux-debian.Dockerfile | 3 +-- 2 files changed, 1 insertion(+), 9 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 1a7a04e01e..e3cb9ff006 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -371,10 +371,3 @@ task: - g++ -Werror include/*.h - clang -Werror -x c++-header include/*.h - /opt/msvc/bin/x64/cl.exe -c -WX -TP include/*.h - -task: - name: "sage prover" - << : *LINUX_CONTAINER - test_script: - - cd sage - - sage prove_group_implementations.sage diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index dbb1dd2919..c319ff1cac 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -21,8 +21,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ gcc-aarch64-linux-gnu libc6-dev-arm64-cross libc6-dbg:arm64 \ gcc-powerpc64le-linux-gnu libc6-dev-ppc64el-cross libc6-dbg:ppc64el \ gcc-mingw-w64-x86-64-win32 wine64 wine \ - gcc-mingw-w64-i686-win32 wine32 \ - sagemath + gcc-mingw-w64-i686-win32 wine32 WORKDIR /root From db32a247612d3d48c7c617b9dedf067649f82083 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 15 Aug 2023 19:13:09 +0200 Subject: [PATCH 219/557] ctimetests: Use new SECP256K1_CHECKMEM macros also for ellswift --- src/ctime_tests.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/src/ctime_tests.c b/src/ctime_tests.c index af7891a91c..a384e83152 100644 --- a/src/ctime_tests.c +++ b/src/ctime_tests.c @@ -181,27 +181,27 @@ static void run_tests(secp256k1_context *ctx, unsigned char *key) { #endif #ifdef ENABLE_MODULE_ELLSWIFT - VALGRIND_MAKE_MEM_UNDEFINED(key, 32); + SECP256K1_CHECKMEM_UNDEFINE(key, 32); ret = secp256k1_ellswift_create(ctx, ellswift, key, NULL); - VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); CHECK(ret == 1); - VALGRIND_MAKE_MEM_UNDEFINED(key, 32); + SECP256K1_CHECKMEM_UNDEFINE(key, 32); ret = secp256k1_ellswift_create(ctx, ellswift, key, ellswift); - VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); CHECK(ret == 1); for (i = 0; i < 2; i++) { - VALGRIND_MAKE_MEM_UNDEFINED(key, 32); - VALGRIND_MAKE_MEM_DEFINED(&ellswift, sizeof(ellswift)); + SECP256K1_CHECKMEM_UNDEFINE(key, 32); + SECP256K1_CHECKMEM_DEFINE(&ellswift, sizeof(ellswift)); ret = secp256k1_ellswift_xdh(ctx, msg, ellswift, ellswift, key, i, secp256k1_ellswift_xdh_hash_function_bip324, NULL); - VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); CHECK(ret == 1); - VALGRIND_MAKE_MEM_UNDEFINED(key, 32); - VALGRIND_MAKE_MEM_DEFINED(&ellswift, sizeof(ellswift)); + SECP256K1_CHECKMEM_UNDEFINE(key, 32); + SECP256K1_CHECKMEM_DEFINE(&ellswift, sizeof(ellswift)); ret = secp256k1_ellswift_xdh(ctx, msg, ellswift, ellswift, key, i, secp256k1_ellswift_xdh_hash_function_prefix, (void *)prefix); - VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret)); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); CHECK(ret == 1); } From 9c91ea41b1987d73b9cbb7e569bb1f1e640a4110 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 15 Aug 2023 19:19:36 +0200 Subject: [PATCH 220/557] ci: Enable ellswift module where it's missing --- .cirrus.yml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/.cirrus.yml b/.cirrus.yml index e3cb9ff006..57280fdfe2 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -104,6 +104,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes matrix: - env: CC: i686-linux-gnu-gcc @@ -224,6 +225,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: no matrix: - name: "x86_64 (mingw32-w64): Windows (Debian stable, Wine)" @@ -330,6 +332,7 @@ task: ECDH: yes RECOVERY: yes SCHNORRSIG: yes + ELLSWIFT: yes CTIMETESTS: yes CC: clang SECP256K1_TEST_ITERS: 32 From bb4efd6404960f9e8f93c15d7d001af068e5b5a4 Mon Sep 17 00:00:00 2001 From: siv2r Date: Wed, 5 Jan 2022 04:23:30 +0530 Subject: [PATCH 221/557] tests: remove unwanted `secp256k1_fe_normalize_weak` call It is not neccessary for the second argument in `secp256k1_fe_equal_var` (or `secp256k1_fe_equal`) to have magnitude = 1. Hence, removed the `secp256k1_fe_normalize_weak` call for those argument. --- src/tests.c | 9 ++++----- src/tests_exhaustive.c | 4 ++-- 2 files changed, 6 insertions(+), 7 deletions(-) diff --git a/src/tests.c b/src/tests.c index 7a76b27ae0..2af5db4e58 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2991,7 +2991,6 @@ static int check_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { secp256k1_fe an = *a; secp256k1_fe bn = *b; secp256k1_fe_normalize_weak(&an); - secp256k1_fe_normalize_var(&bn); return secp256k1_fe_equal_var(&an, &bn); } @@ -3740,9 +3739,9 @@ static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { /* Check a.x * b.z^2 == b.x && a.y * b.z^3 == b.y, to avoid inverses. */ secp256k1_fe_sqr(&z2s, &b->z); secp256k1_fe_mul(&u1, &a->x, &z2s); - u2 = b->x; secp256k1_fe_normalize_weak(&u2); + u2 = b->x; secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); - s2 = b->y; secp256k1_fe_normalize_weak(&s2); + s2 = b->y; CHECK(secp256k1_fe_equal_var(&u1, &u2)); CHECK(secp256k1_fe_equal_var(&s1, &s2)); } @@ -4226,8 +4225,8 @@ static void test_pre_g_table(const secp256k1_ge_storage * pre_g, size_t n) { secp256k1_ge_from_storage(&q, &pre_g[i]); CHECK(secp256k1_ge_is_valid_var(&q)); - secp256k1_fe_negate(&dqx, &q.x, 1); secp256k1_fe_add(&dqx, &gg.x); secp256k1_fe_normalize_weak(&dqx); - dqy = q.y; secp256k1_fe_add(&dqy, &gg.y); secp256k1_fe_normalize_weak(&dqy); + secp256k1_fe_negate(&dqx, &q.x, 1); secp256k1_fe_add(&dqx, &gg.x); + dqy = q.y; secp256k1_fe_add(&dqy, &gg.y); /* Check that -q is not equal to gg */ CHECK(!secp256k1_fe_normalizes_to_zero_var(&dqx) || !secp256k1_fe_normalizes_to_zero_var(&dqy)); diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index dbb6b7eb46..b38e0c49cf 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -52,9 +52,9 @@ static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { /* Check a.x * b.z^2 == b.x && a.y * b.z^3 == b.y, to avoid inverses. */ secp256k1_fe_sqr(&z2s, &b->z); secp256k1_fe_mul(&u1, &a->x, &z2s); - u2 = b->x; secp256k1_fe_normalize_weak(&u2); + u2 = b->x; secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); - s2 = b->y; secp256k1_fe_normalize_weak(&s2); + s2 = b->y; CHECK(secp256k1_fe_equal_var(&u1, &u2)); CHECK(secp256k1_fe_equal_var(&s1, &s2)); } From 54058d16feaa431520029335e2d56252859d3260 Mon Sep 17 00:00:00 2001 From: siv2r Date: Mon, 31 Jan 2022 04:43:57 +0530 Subject: [PATCH 222/557] field: remove `secp256k1_fe_equal_var` `fe_equal_var` hits a fast path only when the inputs are unequal, which is uncommon among its callers (public key parsing, ECDSA verify). --- src/field.h | 6 ---- src/field_impl.h | 15 +------- src/group_impl.h | 4 +-- src/modules/extrakeys/tests_exhaustive_impl.h | 2 +- src/modules/schnorrsig/main_impl.h | 2 +- src/tests.c | 36 +++++++++---------- src/tests_exhaustive.c | 16 ++++----- 7 files changed, 31 insertions(+), 50 deletions(-) diff --git a/src/field.h b/src/field.h index c1775912f8..ccd228e1ae 100644 --- a/src/field.h +++ b/src/field.h @@ -176,12 +176,6 @@ static int secp256k1_fe_is_odd(const secp256k1_fe *a); */ static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b); -/** Determine whether two field elements are equal, without constant-time guarantee. - * - * Identical in behavior to secp256k1_fe_equal, but not constant time in either a or b. - */ -static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b); - /** Compare the values represented by 2 field elements, without constant-time guarantee. * * On input, a and b must be valid normalized field elements. diff --git a/src/field_impl.h b/src/field_impl.h index 29b54c74bc..80d34b9ef2 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -31,19 +31,6 @@ SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe *a, const secp return secp256k1_fe_normalizes_to_zero(&na); } -SECP256K1_INLINE static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b) { - secp256k1_fe na; -#ifdef VERIFY - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); - secp256k1_fe_verify_magnitude(a, 1); - secp256k1_fe_verify_magnitude(b, 31); -#endif - secp256k1_fe_negate(&na, a, 1); - secp256k1_fe_add(&na, b); - return secp256k1_fe_normalizes_to_zero_var(&na); -} - static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k1_fe * SECP256K1_RESTRICT a) { /** Given that p is congruent to 3 mod 4, we can compute the square root of * a mod p as the (p+1)/4'th power of a. @@ -151,7 +138,7 @@ static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k if (!ret) { secp256k1_fe_negate(&t1, &t1, 1); secp256k1_fe_normalize_var(&t1); - VERIFY_CHECK(secp256k1_fe_equal_var(&t1, a)); + VERIFY_CHECK(secp256k1_fe_equal(&t1, a)); } #endif return ret; diff --git a/src/group_impl.h b/src/group_impl.h index dd8a5d0ca9..b9542ce8ae 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -367,7 +367,7 @@ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) #endif secp256k1_fe_sqr(&r, &a->z); secp256k1_fe_mul(&r, &r, x); - return secp256k1_fe_equal_var(&r, &a->x); + return secp256k1_fe_equal(&r, &a->x); } static void secp256k1_gej_neg(secp256k1_gej *r, const secp256k1_gej *a) { @@ -400,7 +400,7 @@ static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { secp256k1_fe_sqr(&y2, &a->y); secp256k1_fe_sqr(&x3, &a->x); secp256k1_fe_mul(&x3, &x3, &a->x); secp256k1_fe_add_int(&x3, SECP256K1_B); - return secp256k1_fe_equal_var(&y2, &x3); + return secp256k1_fe_equal(&y2, &x3); } static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp256k1_gej *a) { diff --git a/src/modules/extrakeys/tests_exhaustive_impl.h b/src/modules/extrakeys/tests_exhaustive_impl.h index d3d817a131..645bae2d47 100644 --- a/src/modules/extrakeys/tests_exhaustive_impl.h +++ b/src/modules/extrakeys/tests_exhaustive_impl.h @@ -48,7 +48,7 @@ static void test_exhaustive_extrakeys(const secp256k1_context *ctx, const secp25 /* Compare the xonly_pubkey bytes against the precomputed group. */ secp256k1_fe_set_b32_mod(&fe, xonly_pubkey_bytes[i - 1]); - CHECK(secp256k1_fe_equal_var(&fe, &group[i].x)); + CHECK(secp256k1_fe_equal(&fe, &group[i].x)); /* Check the parity against the precomputed group. */ fe = group[i].y; diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 4e7b45a045..26727e4651 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -261,7 +261,7 @@ int secp256k1_schnorrsig_verify(const secp256k1_context* ctx, const unsigned cha secp256k1_fe_normalize_var(&r.y); return !secp256k1_fe_is_odd(&r.y) && - secp256k1_fe_equal_var(&rx, &r.x); + secp256k1_fe_equal(&rx, &r.x); } #endif diff --git a/src/tests.c b/src/tests.c index 2af5db4e58..5b7c914f8c 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2991,7 +2991,7 @@ static int check_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { secp256k1_fe an = *a; secp256k1_fe bn = *b; secp256k1_fe_normalize_weak(&an); - return secp256k1_fe_equal_var(&an, &bn); + return secp256k1_fe_equal(&an, &bn); } static void run_field_convert(void) { @@ -3014,9 +3014,9 @@ static void run_field_convert(void) { secp256k1_fe_storage fes2; /* Check conversions to fe. */ CHECK(secp256k1_fe_set_b32_limit(&fe2, b32)); - CHECK(secp256k1_fe_equal_var(&fe, &fe2)); + CHECK(secp256k1_fe_equal(&fe, &fe2)); secp256k1_fe_from_storage(&fe2, &fes); - CHECK(secp256k1_fe_equal_var(&fe, &fe2)); + CHECK(secp256k1_fe_equal(&fe, &fe2)); /* Check conversion from fe. */ secp256k1_fe_get_b32(b322, &fe); CHECK(secp256k1_memcmp_var(b322, b32, 32) == 0); @@ -3173,7 +3173,7 @@ static void run_field_misc(void) { CHECK(check_fe_equal(&q, &z)); /* Test the fe equality and comparison operations. */ CHECK(secp256k1_fe_cmp_var(&x, &x) == 0); - CHECK(secp256k1_fe_equal_var(&x, &x)); + CHECK(secp256k1_fe_equal(&x, &x)); z = x; secp256k1_fe_add(&z,&y); /* Test fe conditional move; z is not normalized here. */ @@ -3198,7 +3198,7 @@ static void run_field_misc(void) { q = z; secp256k1_fe_normalize_var(&x); secp256k1_fe_normalize_var(&z); - CHECK(!secp256k1_fe_equal_var(&x, &z)); + CHECK(!secp256k1_fe_equal(&x, &z)); secp256k1_fe_normalize_var(&q); secp256k1_fe_cmov(&q, &z, (i&1)); #ifdef VERIFY @@ -3703,8 +3703,8 @@ static void ge_equals_ge(const secp256k1_ge *a, const secp256k1_ge *b) { if (a->infinity) { return; } - CHECK(secp256k1_fe_equal_var(&a->x, &b->x)); - CHECK(secp256k1_fe_equal_var(&a->y, &b->y)); + CHECK(secp256k1_fe_equal(&a->x, &b->x)); + CHECK(secp256k1_fe_equal(&a->y, &b->y)); } /* This compares jacobian points including their Z, not just their geometric meaning. */ @@ -3742,8 +3742,8 @@ static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { u2 = b->x; secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); s2 = b->y; - CHECK(secp256k1_fe_equal_var(&u1, &u2)); - CHECK(secp256k1_fe_equal_var(&s1, &s2)); + CHECK(secp256k1_fe_equal(&u1, &u2)); + CHECK(secp256k1_fe_equal(&s1, &s2)); } static void test_ge(void) { @@ -3811,7 +3811,7 @@ static void test_ge(void) { /* Check Z ratio. */ if (!secp256k1_gej_is_infinity(&gej[i1]) && !secp256k1_gej_is_infinity(&refj)) { secp256k1_fe zrz; secp256k1_fe_mul(&zrz, &zr, &gej[i1].z); - CHECK(secp256k1_fe_equal_var(&zrz, &refj.z)); + CHECK(secp256k1_fe_equal(&zrz, &refj.z)); } secp256k1_ge_set_gej_var(&ref, &refj); @@ -3820,7 +3820,7 @@ static void test_ge(void) { ge_equals_gej(&ref, &resj); if (!secp256k1_gej_is_infinity(&gej[i1]) && !secp256k1_gej_is_infinity(&resj)) { secp256k1_fe zrz; secp256k1_fe_mul(&zrz, &zr, &gej[i1].z); - CHECK(secp256k1_fe_equal_var(&zrz, &resj.z)); + CHECK(secp256k1_fe_equal(&zrz, &resj.z)); } /* Test gej + ge (var, with additional Z factor). */ @@ -3849,7 +3849,7 @@ static void test_ge(void) { ge_equals_gej(&ref, &resj); /* Check Z ratio. */ secp256k1_fe_mul(&zr2, &zr2, &gej[i1].z); - CHECK(secp256k1_fe_equal_var(&zr2, &resj.z)); + CHECK(secp256k1_fe_equal(&zr2, &resj.z)); /* Normal doubling. */ secp256k1_gej_double_var(&resj, &gej[i2], NULL); ge_equals_gej(&ref, &resj); @@ -3932,7 +3932,7 @@ static void test_ge(void) { ret_set_xo = secp256k1_ge_set_xo_var(&q, &r, 0); CHECK(ret_on_curve == ret_frac_on_curve); CHECK(ret_on_curve == ret_set_xo); - if (ret_set_xo) CHECK(secp256k1_fe_equal_var(&r, &q.x)); + if (ret_set_xo) CHECK(secp256k1_fe_equal(&r, &q.x)); } /* Test batch gej -> ge conversion with many infinities. */ @@ -4172,8 +4172,8 @@ static void test_group_decompress(const secp256k1_fe* x) { CHECK(!ge_odd.infinity); /* Check that the x coordinates check out. */ - CHECK(secp256k1_fe_equal_var(&ge_even.x, x)); - CHECK(secp256k1_fe_equal_var(&ge_odd.x, x)); + CHECK(secp256k1_fe_equal(&ge_even.x, x)); + CHECK(secp256k1_fe_equal(&ge_odd.x, x)); /* Check odd/even Y in ge_odd, ge_even. */ CHECK(secp256k1_fe_is_odd(&ge_odd.y)); @@ -4231,12 +4231,12 @@ static void test_pre_g_table(const secp256k1_ge_storage * pre_g, size_t n) { CHECK(!secp256k1_fe_normalizes_to_zero_var(&dqx) || !secp256k1_fe_normalizes_to_zero_var(&dqy)); /* Check that -q is not equal to p */ - CHECK(!secp256k1_fe_equal_var(&dpx, &dqx) || !secp256k1_fe_equal_var(&dpy, &dqy)); + CHECK(!secp256k1_fe_equal(&dpx, &dqx) || !secp256k1_fe_equal(&dpy, &dqy)); /* Check that p, -q and gg are colinear */ secp256k1_fe_mul(&dpx, &dpx, &dqy); secp256k1_fe_mul(&dpy, &dpy, &dqx); - CHECK(secp256k1_fe_equal_var(&dpx, &dpy)); + CHECK(secp256k1_fe_equal(&dpx, &dpy)); p = q; } @@ -4455,7 +4455,7 @@ static void run_point_times_order(void) { secp256k1_fe_sqr(&x, &x); } secp256k1_fe_normalize_var(&x); - CHECK(secp256k1_fe_equal_var(&x, &xr)); + CHECK(secp256k1_fe_equal(&x, &xr)); } static void ecmult_const_random_mult(void) { diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index b38e0c49cf..3af8ec1ee5 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -38,8 +38,8 @@ static void ge_equals_ge(const secp256k1_ge *a, const secp256k1_ge *b) { if (a->infinity) { return; } - CHECK(secp256k1_fe_equal_var(&a->x, &b->x)); - CHECK(secp256k1_fe_equal_var(&a->y, &b->y)); + CHECK(secp256k1_fe_equal(&a->x, &b->x)); + CHECK(secp256k1_fe_equal(&a->y, &b->y)); } static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { @@ -55,8 +55,8 @@ static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { u2 = b->x; secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); s2 = b->y; - CHECK(secp256k1_fe_equal_var(&u1, &u2)); - CHECK(secp256k1_fe_equal_var(&s1, &s2)); + CHECK(secp256k1_fe_equal(&u1, &u2)); + CHECK(secp256k1_fe_equal(&s1, &s2)); } static void random_fe(secp256k1_fe *x) { @@ -219,14 +219,14 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, and xd=NULL. */ ret = secp256k1_ecmult_const_xonly(&tmpf, &group[i].x, NULL, &ng, 0); CHECK(ret); - CHECK(secp256k1_fe_equal_var(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); + CHECK(secp256k1_fe_equal(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, with random xd. */ random_fe_non_zero(&xd); secp256k1_fe_mul(&xn, &xd, &group[i].x); ret = secp256k1_ecmult_const_xonly(&tmpf, &xn, &xd, &ng, 0); CHECK(ret); - CHECK(secp256k1_fe_equal_var(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); + CHECK(secp256k1_fe_equal(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); } } } @@ -475,8 +475,8 @@ int main(int argc, char** argv) { CHECK(group[i].infinity == 0); CHECK(generated.infinity == 0); - CHECK(secp256k1_fe_equal_var(&generated.x, &group[i].x)); - CHECK(secp256k1_fe_equal_var(&generated.y, &group[i].y)); + CHECK(secp256k1_fe_equal(&generated.x, &group[i].x)); + CHECK(secp256k1_fe_equal(&generated.y, &group[i].y)); } } From d62db57427f60da57f936cbe049ee27b10c3f8d4 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 16 Aug 2023 14:39:58 +0100 Subject: [PATCH 223/557] ci: Use Homebrew's gcc in native macOS task Co-authored-by: Tim Ruffing --- .cirrus.yml | 1 + ci/cirrus.sh | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/.cirrus.yml b/.cirrus.yml index 57280fdfe2..7deecdac49 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -139,6 +139,7 @@ task: - env: {BUILD: distcheck} brew_script: - brew install automake libtool gcc + - ln -s /opt/homebrew/bin/gcc-?? /opt/homebrew/bin/gcc test_script: - ./ci/cirrus.sh << : *CAT_LOGS diff --git a/ci/cirrus.sh b/ci/cirrus.sh index fe54b5ea88..66119edf15 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -43,6 +43,13 @@ esac env >> test_env.log +# If gcc is requested, assert that it's in fact gcc (and not some symlinked Apple clang). +case "${CC:-undefined}" in + *gcc*) + $CC -v 2>&1 | grep -q "gcc version" || exit 1; + ;; +esac + if [ -n "${CC+x}" ]; then # The MSVC compiler "cl" doesn't understand "-v" $CC -v || true From 8e54a346d2fa5aeedd6ba5201fcb084c281cf6a7 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 16 Aug 2023 16:05:33 +0100 Subject: [PATCH 224/557] ci, gha: Run "x86_64: macOS Ventura" job on GitHub Actions --- .github/workflows/ci.yml | 85 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index ea55b04671..58a89243e4 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -8,9 +8,94 @@ on: - '**' env: + ### compiler options + HOST: + WRAPPER_CMD: + # Specific warnings can be disabled with -Wno-error=foo. + # -pedantic-errors is not equivalent to -Werror=pedantic and thus not implied by -Werror according to the GCC manual. + WERROR_CFLAGS: '-Werror -pedantic-errors' + MAKEFLAGS: '-j4' + BUILD: 'check' + ### secp256k1 config + ECMULTWINDOW: 'auto' + ECMULTGENPRECISION: 'auto' + ASM: 'no' + WIDEMUL: 'auto' + WITH_VALGRIND: 'yes' + EXTRAFLAGS: + ### secp256k1 modules + EXPERIMENTAL: 'no' + ECDH: 'no' + RECOVERY: 'no' + SCHNORRSIG: 'no' + ELLSWIFT: 'no' + ### test options + SECP256K1_TEST_ITERS: + BENCH: 'yes' SECP256K1_BENCH_ITERS: 2 + CTIMETESTS: 'yes' + # Compile and run the examples. + EXAMPLES: 'yes' jobs: + macos-native: + name: "x86_64: macOS Ventura" + # See: https://github.com/actions/runner-images#available-images. + runs-on: macos-13 + + env: + ASM: 'no' + WITH_VALGRIND: 'no' + CTIMETESTS: 'no' + CC: 'clang' + + strategy: + fail-fast: false + matrix: + env_vars: + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128_struct', ECMULTGENPRECISION: 2, ECMULTWINDOW: 4 } + - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', SCHNORRSIG: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY' } + - BUILD: 'distcheck' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: Install Homebrew packages + env: + HOMEBREW_NO_AUTO_UPDATE: 1 + HOMEBREW_NO_INSTALL_CLEANUP: 1 + run: | + brew install automake libtool gcc + ln -s $(brew --prefix gcc)/bin/gcc-?? /usr/local/bin/gcc + + - name: CI script + env: ${{ matrix.env_vars }} + run: ./ci/cirrus.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + win64-native: name: "x86_64: Windows, VS 2022" # See: https://github.com/actions/runner-images#available-images. From 3545dc2b9bdbf856c1e0288120ef1cde99daa7ec Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 17 Aug 2023 10:13:28 +0100 Subject: [PATCH 225/557] ci, gha: Run all MSVC tests on Windows natively --- .github/workflows/ci.yml | 39 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 36 insertions(+), 3 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index ea55b04671..d83b208bf3 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -12,25 +12,42 @@ env: jobs: win64-native: - name: "x86_64: Windows, VS 2022" + name: ${{ matrix.configuration.job_name }} # See: https://github.com/actions/runner-images#available-images. runs-on: windows-2022 strategy: fail-fast: false matrix: - lib_type: ['shared', 'static'] + configuration: + - job_name: 'x64 (MSVC): Windows (VS 2022, shared)' + cmake_options: '-A x64 -DBUILD_SHARED_LIBS=ON' + - job_name: 'x64 (MSVC): Windows (VS 2022, static)' + cmake_options: '-A x64 -DBUILD_SHARED_LIBS=OFF' + - job_name: 'x64 (MSVC): Windows (VS 2022, int128_struct)' + cmake_options: '-A x64 -DSECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY=int128_struct' + - job_name: 'x64 (MSVC): Windows (VS 2022, int128_struct with __(u)mulh)' + cmake_options: '-A x64 -DSECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY=int128_struct' + cpp_flags: '/DSECP256K1_MSVC_MULH_TEST_OVERRIDE' + - job_name: 'x86 (MSVC): Windows (VS 2022)' + cmake_options: '-A Win32' steps: - name: Checkout uses: actions/checkout@v3 - name: Generate buildsystem - run: cmake -E env CFLAGS="/WX" cmake -B build -A x64 -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON -DBUILD_SHARED_LIBS=${{ matrix.lib_type == 'shared' && 'ON' || 'OFF' }} + run: cmake -E env CFLAGS="/WX ${{ matrix.configuration.cpp_flags }}" cmake -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON ${{ matrix.configuration.cmake_options }} - name: Build run: cmake --build build --config RelWithDebInfo -- /p:UseMultiToolTask=true /maxCpuCount + - name: Binaries info + # Use the bash shell included with Git for Windows. + shell: bash + run: | + cd build/src/RelWithDebInfo && file *tests.exe bench*.exe libsecp256k1-*.dll || true + - name: Check run: | ctest -C RelWithDebInfo --test-dir build -j ([int]$env:NUMBER_OF_PROCESSORS + 1) @@ -38,6 +55,22 @@ jobs: build\src\RelWithDebInfo\bench_internal.exe build\src\RelWithDebInfo\bench.exe + win64-native-headers: + name: "x64 (MSVC): C++ (public headers)" + # See: https://github.com/actions/runner-images#available-images. + runs-on: windows-2022 + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: Add cl.exe to PATH + uses: ilammy/msvc-dev-cmd@v1 + + - name: C++ (public headers) + run: | + cl.exe -c -WX -TP include/*.h + sage: name: "SageMath prover" runs-on: ubuntu-latest From d78bec7001fe6f5ed8d5b215bf61e7b74e3369ca Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 17 Aug 2023 10:13:38 +0100 Subject: [PATCH 226/557] ci: Remove Windows MSVC tasks from Cirrus CI Co-authored-by: Tim Ruffing --- .cirrus.yml | 43 -------------------------------------- ci/cirrus.sh | 10 --------- ci/linux-debian.Dockerfile | 20 ++---------------- 3 files changed, 2 insertions(+), 71 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 7deecdac49..0d336b3506 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -239,48 +239,6 @@ task: - ./ci/cirrus.sh << : *CAT_LOGS -task: - << : *LINUX_CONTAINER - env: - WRAPPER_CMD: wine - WERROR_CFLAGS: -WX - WITH_VALGRIND: no - ECDH: yes - RECOVERY: yes - EXPERIMENTAL: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: no - # Use a MinGW-w64 host to tell ./configure we're building for Windows. - # This will detect some MinGW-w64 tools but then make will need only - # the MSVC tools CC, AR and NM as specified below. - HOST: x86_64-w64-mingw32 - CC: /opt/msvc/bin/x64/cl - AR: /opt/msvc/bin/x64/lib - NM: /opt/msvc/bin/x64/dumpbin -symbols -headers - # Set non-essential options that affect the CLI messages here. - # (They depend on the user's taste, so we don't want to set them automatically in configure.ac.) - CFLAGS: -nologo -diagnostics:caret - LDFLAGS: -Xlinker -Xlinker -Xlinker -nologo - matrix: - - name: "x86_64 (MSVC): Windows (Debian stable, Wine)" - - name: "x86_64 (MSVC): Windows (Debian stable, Wine, int128_struct)" - env: - WIDEMUL: int128_struct - - name: "x86_64 (MSVC): Windows (Debian stable, Wine, int128_struct with __(u)mulh)" - env: - WIDEMUL: int128_struct - CPPFLAGS: -DSECP256K1_MSVC_MULH_TEST_OVERRIDE - - name: "i686 (MSVC): Windows (Debian stable, Wine)" - env: - HOST: i686-w64-mingw32 - CC: /opt/msvc/bin/x86/cl - AR: /opt/msvc/bin/x86/lib - NM: /opt/msvc/bin/x86/dumpbin -symbols -headers - test_script: - - ./ci/cirrus.sh - << : *CAT_LOGS - # Sanitizers task: << : *LINUX_CONTAINER @@ -374,4 +332,3 @@ task: test_script: - g++ -Werror include/*.h - clang -Werror -x c++-header include/*.h - - /opt/msvc/bin/x64/cl.exe -c -WX -TP include/*.h diff --git a/ci/cirrus.sh b/ci/cirrus.sh index 66119edf15..719e7851ef 100755 --- a/ci/cirrus.sh +++ b/ci/cirrus.sh @@ -31,16 +31,6 @@ print_environment() { } print_environment -# Start persistent wineserver if necessary. -# This speeds up jobs with many invocations of wine (e.g., ./configure with MSVC) tremendously. -case "$WRAPPER_CMD" in - *wine*) - # Make sure to shutdown wineserver whenever we exit. - trap "wineserver -k || true" EXIT INT HUP - wineserver -p - ;; -esac - env >> test_env.log # If gcc is requested, assert that it's in fact gcc (and not some symlinked Apple clang). diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index c319ff1cac..34ec380699 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -21,7 +21,8 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ gcc-aarch64-linux-gnu libc6-dev-arm64-cross libc6-dbg:arm64 \ gcc-powerpc64le-linux-gnu libc6-dev-ppc64el-cross libc6-dbg:ppc64el \ gcc-mingw-w64-x86-64-win32 wine64 wine \ - gcc-mingw-w64-i686-win32 wine32 + gcc-mingw-w64-i686-win32 wine32 \ + python3 WORKDIR /root @@ -55,20 +56,3 @@ RUN wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted. # Create symlinks for them ln -s $(ls /usr/bin/clang-?? | sort | tail -1) /usr/bin/clang-snapshot && \ ln -s $(ls /usr/bin/clang-?? | sort | head -1) /usr/bin/clang - -# The "wine" package provides a convenience wrapper that we need -RUN apt-get update && apt-get install --no-install-recommends -y \ - git ca-certificates wine64 wine python3-simplejson python3-six msitools winbind procps && \ -# Workaround for `wine` package failure to employ the Debian alternatives system properly. - ln -s /usr/lib/wine/wine64 /usr/bin/wine64 && \ -# Set of tools for using MSVC on Linux. - git clone https://github.com/mstorsjo/msvc-wine && \ - mkdir /opt/msvc && \ - python3 msvc-wine/vsdownload.py --accept-license --dest /opt/msvc Microsoft.VisualStudio.Workload.VCTools && \ -# Since commit 2146cbfaf037e21de56c7157ec40bb6372860f51, the -# msvc-wine effectively initializes the wine prefix when running -# the install.sh script. - msvc-wine/install.sh /opt/msvc && \ -# Wait until the wineserver process has exited before closing the session, -# to avoid corrupting the wine prefix. - while (ps -A | grep wineserver) > /dev/null; do sleep 1; done From b0886fd35c0ad05adee3fb8008e4315bf2f91f1f Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 17 Aug 2023 14:32:43 +0100 Subject: [PATCH 227/557] ci, gha: Ensure only a single workflow processes `github.ref` at a time --- .github/workflows/ci.yml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 58a89243e4..e9ae9f027a 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -7,6 +7,10 @@ on: tags-ignore: - '**' +concurrency: + group: ${{ github.ref }} + cancel-in-progress: ${{ github.event_name == 'pull_request' }} + env: ### compiler options HOST: From 4a24fae0bc82738b4d6d44d378da8f15d4fce03e Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 5 Aug 2023 16:30:16 +0100 Subject: [PATCH 228/557] ci: Remove "arm64: macOS Ventura" task from Cirrus CI --- .cirrus.yml | 31 ------------------------------- 1 file changed, 31 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 7deecdac49..e0529cdb02 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -114,37 +114,6 @@ task: - ./ci/cirrus.sh << : *CAT_LOGS -task: - name: "arm64: macOS Ventura" - macos_instance: - image: ghcr.io/cirruslabs/macos-ventura-base:latest - env: - HOMEBREW_NO_AUTO_UPDATE: 1 - HOMEBREW_NO_INSTALL_CLEANUP: 1 - # Cirrus gives us a fixed number of 4 virtual CPUs. Not that we even have that many jobs at the moment... - MAKEFLAGS: -j5 - env: - ASM: no - WITH_VALGRIND: no - CTIMETESTS: no - CC: clang - matrix: - - env: {WIDEMUL: int64, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - - env: {WIDEMUL: int64, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes, CC: gcc} - - env: {WIDEMUL: int128_struct, ECMULTGENPRECISION: 2, ECMULTWINDOW: 4} - - env: {WIDEMUL: int128, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - - env: {WIDEMUL: int128, RECOVERY: yes, SCHNORRSIG: yes} - - env: {WIDEMUL: int128, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes, CC: gcc} - - env: {WIDEMUL: int128, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes, CPPFLAGS: -DVERIFY} - - env: {BUILD: distcheck} - brew_script: - - brew install automake libtool gcc - - ln -s /opt/homebrew/bin/gcc-?? /opt/homebrew/bin/gcc - test_script: - - ./ci/cirrus.sh - << : *CAT_LOGS - << : *CREDITS - task: name: "s390x (big-endian): Linux (Debian stable, QEMU)" << : *LINUX_CONTAINER From c2f6435802dfaea43fa589fa72804e344c08cd6e Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 17 Aug 2023 16:03:54 +0200 Subject: [PATCH 229/557] ci: Add comment about switching macOS to M1 on GHA later --- .github/workflows/ci.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 58a89243e4..b661660a13 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -41,7 +41,7 @@ jobs: macos-native: name: "x86_64: macOS Ventura" # See: https://github.com/actions/runner-images#available-images. - runs-on: macos-13 + runs-on: macos-13 # Use M1 once available https://github.com/github/roadmap/issues/528 env: ASM: 'no' From dc5514144fb9d412aa3845432b053ee06a27da37 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 7 Aug 2023 02:09:58 +0200 Subject: [PATCH 230/557] tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize) `random_fe_non_zero` contains a loop iteration limit that ensures that we abort if `random_fe` ever yielded zero more than ten times in a row. This construct was first introduced in PR #19 (commit 09ca4f32) for random non-square field elements and was later refactored into the non-zero helper in PR #25 (commit 6d6102fe). The copy-over to the exhaustive tests happened recently in PR #1118 (commit 0f864207). This case seems to be practically irrelevant and I'd argue for keeping things simple and removing it; if there's really a worry that the test's random generator is heavily biased towards certain values or value ranges then there should consequently be checks at other places too (e.g. directly in `random_fe` for 256-bit values that repeatedly overflow, i.e. >= p). Also, the _fe_normalize call is not needed and can be removed, as the result of `random_fe` is already normalized. --- src/tests.c | 11 ++--------- src/tests_exhaustive.c | 11 ++--------- 2 files changed, 4 insertions(+), 18 deletions(-) diff --git a/src/tests.c b/src/tests.c index 5b7c914f8c..b4792ebe9d 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2967,16 +2967,9 @@ static void random_fe(secp256k1_fe *x) { } static void random_fe_non_zero(secp256k1_fe *nz) { - int tries = 10; - while (--tries >= 0) { + do { random_fe(nz); - secp256k1_fe_normalize(nz); - if (!secp256k1_fe_is_zero(nz)) { - break; - } - } - /* Infinitesimal probability of spurious failure here */ - CHECK(tries >= 0); + } while (secp256k1_fe_is_zero(nz)); } static void random_fe_non_square(secp256k1_fe *ns) { diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 3af8ec1ee5..6cab1a6943 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -70,16 +70,9 @@ static void random_fe(secp256k1_fe *x) { } static void random_fe_non_zero(secp256k1_fe *nz) { - int tries = 10; - while (--tries >= 0) { + do { random_fe(nz); - secp256k1_fe_normalize(nz); - if (!secp256k1_fe_is_zero(nz)) { - break; - } - } - /* Infinitesimal probability of spurious failure here */ - CHECK(tries >= 0); + } while (secp256k1_fe_is_zero(nz)); } /** END stolen from tests.c */ From c45b7c4fbbf41b011f138c465a58322a36664fd3 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 17 Aug 2023 19:25:56 +0200 Subject: [PATCH 231/557] refactor: introduce testutil.h (deduplicate `random_fe_`, `ge_equals_` helpers) --- Makefile.am | 1 + src/tests.c | 43 +-------------------------------- src/tests_exhaustive.c | 45 +--------------------------------- src/testutil.h | 55 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 58 insertions(+), 86 deletions(-) create mode 100644 src/testutil.h diff --git a/Makefile.am b/Makefile.am index 32bc729a41..9d0dc3dffc 100644 --- a/Makefile.am +++ b/Makefile.am @@ -46,6 +46,7 @@ noinst_HEADERS += src/precomputed_ecmult.h noinst_HEADERS += src/precomputed_ecmult_gen.h noinst_HEADERS += src/assumptions.h noinst_HEADERS += src/checkmem.h +noinst_HEADERS += src/testutil.h noinst_HEADERS += src/util.h noinst_HEADERS += src/int128.h noinst_HEADERS += src/int128_impl.h diff --git a/src/tests.c b/src/tests.c index b4792ebe9d..fe1f725308 100644 --- a/src/tests.c +++ b/src/tests.c @@ -23,6 +23,7 @@ #include "../include/secp256k1_preallocated.h" #include "testrand_impl.h" #include "checkmem.h" +#include "testutil.h" #include "util.h" #include "../contrib/lax_der_parsing.c" @@ -2956,22 +2957,6 @@ static void run_scalar_tests(void) { /***** FIELD TESTS *****/ -static void random_fe(secp256k1_fe *x) { - unsigned char bin[32]; - do { - secp256k1_testrand256(bin); - if (secp256k1_fe_set_b32_limit(x, bin)) { - return; - } - } while(1); -} - -static void random_fe_non_zero(secp256k1_fe *nz) { - do { - random_fe(nz); - } while (secp256k1_fe_is_zero(nz)); -} - static void random_fe_non_square(secp256k1_fe *ns) { secp256k1_fe r; random_fe_non_zero(ns); @@ -3691,15 +3676,6 @@ static void run_inverse_tests(void) /***** GROUP TESTS *****/ -static void ge_equals_ge(const secp256k1_ge *a, const secp256k1_ge *b) { - CHECK(a->infinity == b->infinity); - if (a->infinity) { - return; - } - CHECK(secp256k1_fe_equal(&a->x, &b->x)); - CHECK(secp256k1_fe_equal(&a->y, &b->y)); -} - /* This compares jacobian points including their Z, not just their geometric meaning. */ static int gej_xyz_equals_gej(const secp256k1_gej *a, const secp256k1_gej *b) { secp256k1_gej a2; @@ -3722,23 +3698,6 @@ static int gej_xyz_equals_gej(const secp256k1_gej *a, const secp256k1_gej *b) { return ret; } -static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { - secp256k1_fe z2s; - secp256k1_fe u1, u2, s1, s2; - CHECK(a->infinity == b->infinity); - if (a->infinity) { - return; - } - /* Check a.x * b.z^2 == b.x && a.y * b.z^3 == b.y, to avoid inverses. */ - secp256k1_fe_sqr(&z2s, &b->z); - secp256k1_fe_mul(&u1, &a->x, &z2s); - u2 = b->x; - secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); - s2 = b->y; - CHECK(secp256k1_fe_equal(&u1, &u2)); - CHECK(secp256k1_fe_equal(&s1, &s2)); -} - static void test_ge(void) { int i, i1; int runs = 6; diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 6cab1a6943..491248d612 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -28,54 +28,11 @@ #include "testrand_impl.h" #include "ecmult_compute_table_impl.h" #include "ecmult_gen_compute_table_impl.h" +#include "testutil.h" #include "util.h" static int count = 2; -/** stolen from tests.c */ -static void ge_equals_ge(const secp256k1_ge *a, const secp256k1_ge *b) { - CHECK(a->infinity == b->infinity); - if (a->infinity) { - return; - } - CHECK(secp256k1_fe_equal(&a->x, &b->x)); - CHECK(secp256k1_fe_equal(&a->y, &b->y)); -} - -static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { - secp256k1_fe z2s; - secp256k1_fe u1, u2, s1, s2; - CHECK(a->infinity == b->infinity); - if (a->infinity) { - return; - } - /* Check a.x * b.z^2 == b.x && a.y * b.z^3 == b.y, to avoid inverses. */ - secp256k1_fe_sqr(&z2s, &b->z); - secp256k1_fe_mul(&u1, &a->x, &z2s); - u2 = b->x; - secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); - s2 = b->y; - CHECK(secp256k1_fe_equal(&u1, &u2)); - CHECK(secp256k1_fe_equal(&s1, &s2)); -} - -static void random_fe(secp256k1_fe *x) { - unsigned char bin[32]; - do { - secp256k1_testrand256(bin); - if (secp256k1_fe_set_b32_limit(x, bin)) { - return; - } - } while(1); -} - -static void random_fe_non_zero(secp256k1_fe *nz) { - do { - random_fe(nz); - } while (secp256k1_fe_is_zero(nz)); -} -/** END stolen from tests.c */ - static uint32_t num_cores = 1; static uint32_t this_core = 0; diff --git a/src/testutil.h b/src/testutil.h new file mode 100644 index 0000000000..7333541dc5 --- /dev/null +++ b/src/testutil.h @@ -0,0 +1,55 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_TESTUTIL_H +#define SECP256K1_TESTUTIL_H + +#include "field.h" +#include "testrand.h" +#include "util.h" + +static void random_fe(secp256k1_fe *x) { + unsigned char bin[32]; + do { + secp256k1_testrand256(bin); + if (secp256k1_fe_set_b32_limit(x, bin)) { + return; + } + } while(1); +} + +static void random_fe_non_zero(secp256k1_fe *nz) { + do { + random_fe(nz); + } while (secp256k1_fe_is_zero(nz)); +} + +static void ge_equals_ge(const secp256k1_ge *a, const secp256k1_ge *b) { + CHECK(a->infinity == b->infinity); + if (a->infinity) { + return; + } + CHECK(secp256k1_fe_equal(&a->x, &b->x)); + CHECK(secp256k1_fe_equal(&a->y, &b->y)); +} + +static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { + secp256k1_fe z2s; + secp256k1_fe u1, u2, s1, s2; + CHECK(a->infinity == b->infinity); + if (a->infinity) { + return; + } + /* Check a.x * b.z^2 == b.x && a.y * b.z^3 == b.y, to avoid inverses. */ + secp256k1_fe_sqr(&z2s, &b->z); + secp256k1_fe_mul(&u1, &a->x, &z2s); + u2 = b->x; + secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); + s2 = b->y; + CHECK(secp256k1_fe_equal(&u1, &u2)); + CHECK(secp256k1_fe_equal(&s1, &s2)); +} + +#endif /* SECP256K1_TESTUTIL_H */ From 2b6f9cd546ce688005184f1400bfded7a4a4bbf0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 17 Aug 2023 21:43:14 +0100 Subject: [PATCH 232/557] ci, gha: Add Windows jobs based on Linux image --- .../actions/run-in-docker-action/action.yml | 37 +++++++++ .github/workflows/ci.yml | 76 +++++++++++++++++++ 2 files changed, 113 insertions(+) create mode 100644 .github/actions/run-in-docker-action/action.yml diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml new file mode 100644 index 0000000000..203383d0b1 --- /dev/null +++ b/.github/actions/run-in-docker-action/action.yml @@ -0,0 +1,37 @@ +name: 'Run in Docker with environment' +description: 'Run a command in a Docker container, while passing explicitly set environment variables into the container.' +inputs: + dockerfile: + description: 'A Dockerfile that defines an image' + required: true + tag: + description: 'A tag of an image' + required: true + command: + description: 'A command to run in a container' + required: true +runs: + using: "composite" + steps: + - uses: docker/setup-buildx-action@v2 + with: + # See: https://github.com/moby/buildkit/issues/3969. + driver-opts: | + network=host + + - uses: docker/build-push-action@v4 + with: + context: . + file: ${{ inputs.dockerfile }} + tags: ${{ inputs.tag }} + load: true + cache-from: type=gha + + - # Tell Docker to pass environment variables in `env` into the container. + run: > + docker run \ + $(echo '${{ toJSON(env) }}' | jq -r 'keys[] | "--env \(.) "') \ + --volume ${{ github.workspace }}:${{ github.workspace }} \ + --workdir ${{ github.workspace }} \ + ${{ inputs.tag }} bash -c "${{ inputs.command }}" + shell: bash diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index c172abb0ee..66df646576 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -42,6 +42,82 @@ env: EXAMPLES: 'yes' jobs: + docker_cache: + name: "Build Docker image" + runs-on: ubuntu-latest + steps: + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v2 + with: + # See: https://github.com/moby/buildkit/issues/3969. + driver-opts: | + network=host + + - name: Build container + uses: docker/build-push-action@v4 + with: + file: ./ci/linux-debian.Dockerfile + tags: linux-debian-image + cache-from: type=gha + cache-to: type=gha,mode=min + + mingw_debian: + name: ${{ matrix.configuration.job_name }} + runs-on: ubuntu-latest + needs: docker_cache + + env: + WRAPPER_CMD: 'wine' + WITH_VALGRIND: 'no' + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'no' + + strategy: + fail-fast: false + matrix: + configuration: + - job_name: 'x86_64 (mingw32-w64): Windows (Debian stable, Wine)' + env_vars: + HOST: 'x86_64-w64-mingw32' + - job_name: 'i686 (mingw32-w64): Windows (Debian stable, Wine)' + env_vars: + HOST: 'i686-w64-mingw32' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + env: ${{ matrix.configuration.env_vars }} + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/cirrus.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + macos-native: name: "x86_64: macOS Ventura" # See: https://github.com/actions/runner-images#available-images. From d6281dd0086a37c77311b4acbbacad89738163c7 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 17 Aug 2023 21:44:24 +0100 Subject: [PATCH 233/557] ci: Remove Windows tasks from Cirrus CI --- .cirrus.yml | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 1762007c60..79a13b4c05 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -187,27 +187,6 @@ task: - ./ci/cirrus.sh << : *CAT_LOGS -task: - << : *LINUX_CONTAINER - env: - WRAPPER_CMD: wine - WITH_VALGRIND: no - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: no - matrix: - - name: "x86_64 (mingw32-w64): Windows (Debian stable, Wine)" - env: - HOST: x86_64-w64-mingw32 - - name: "i686 (mingw32-w64): Windows (Debian stable, Wine)" - env: - HOST: i686-w64-mingw32 - test_script: - - ./ci/cirrus.sh - << : *CAT_LOGS - # Sanitizers task: << : *LINUX_CONTAINER From 87d35f30c0a322e9b4bc5ee1addc1d0cd463562a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 17 Aug 2023 21:44:35 +0100 Subject: [PATCH 234/557] ci: Rename `cirrus.sh` to more general `ci.sh` This makes sense in the process of moving stuff to GitHub Actions. --- .cirrus.yml | 18 +++++++++--------- .github/workflows/ci.yml | 4 ++-- ci/{cirrus.sh => ci.sh} | 0 3 files changed, 11 insertions(+), 11 deletions(-) rename ci/{cirrus.sh => ci.sh} (100%) diff --git a/.cirrus.yml b/.cirrus.yml index 79a13b4c05..9d3807f4eb 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -93,7 +93,7 @@ task: - env: CC: clang-snapshot test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS task: @@ -111,7 +111,7 @@ task: - env: CC: clang --target=i686-pc-linux-gnu -isystem /usr/i686-linux-gnu/include test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS task: @@ -130,7 +130,7 @@ task: test_script: # https://sourceware.org/bugzilla/show_bug.cgi?id=27008 - rm /etc/ld.so.cache - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS task: @@ -150,7 +150,7 @@ task: - env: {} - env: {EXPERIMENTAL: yes, ASM: arm32} test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS task: @@ -167,7 +167,7 @@ task: ELLSWIFT: yes CTIMETESTS: no test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS task: @@ -184,7 +184,7 @@ task: ELLSWIFT: yes CTIMETESTS: no test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS # Sanitizers @@ -228,7 +228,7 @@ task: HOST: i686-linux-gnu CC: i686-linux-gnu-gcc test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS # Memory sanitizers @@ -255,7 +255,7 @@ task: ECMULTWINDOW: 2 CFLAGS: "-fsanitize=memory -g -O3" test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS task: @@ -271,7 +271,7 @@ task: SCHNORRSIG: yes ELLSWIFT: yes test_script: - - ./ci/cirrus.sh + - ./ci/ci.sh << : *CAT_LOGS task: diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 66df646576..f9518c4ac4 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -98,7 +98,7 @@ jobs: tag: linux-debian-image command: > git config --global --add safe.directory ${{ github.workspace }} && - ./ci/cirrus.sh + ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -156,7 +156,7 @@ jobs: - name: CI script env: ${{ matrix.env_vars }} - run: ./ci/cirrus.sh + run: ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} diff --git a/ci/cirrus.sh b/ci/ci.sh similarity index 100% rename from ci/cirrus.sh rename to ci/ci.sh From ad3e65d9fed5ad65391447781c7997f137c8e3a7 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 14 Aug 2023 12:42:14 +0200 Subject: [PATCH 235/557] ci: Remove GCC build files and sage to reduce size of Docker image --- ci/linux-debian.Dockerfile | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 34ec380699..48714b42e7 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -1,4 +1,4 @@ -FROM debian:stable +FROM debian:stable-slim SHELL ["/bin/bash", "-c"] @@ -28,7 +28,8 @@ WORKDIR /root # Build and install gcc snapshot ARG GCC_SNAPSHOT_MAJOR=14 -RUN wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --level 1 --no-directories "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}" && \ +RUN mkdir gcc && cd gcc && \ + wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --level 1 --no-directories "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}" && \ wget "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}/sha512.sum" && \ sha512sum --check --ignore-missing sha512.sum && \ # We should have downloaded exactly one tar.xz file @@ -40,6 +41,9 @@ RUN wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --leve ../*/configure --prefix=/opt/gcc-snapshot --enable-languages=c --disable-bootstrap --disable-multilib --without-isl && \ make -j $(nproc) && \ make install && \ + apt-get autoremove -y libgmp-dev libmpfr-dev libmpc-dev flex && \ + apt-get clean && \ + cd ../.. && rm -rf gcc && \ ln -s /opt/gcc-snapshot/bin/gcc /usr/bin/gcc-snapshot # Install clang snapshot From 03c9e6508ccfaf2ed4150caa5d2d7e92abca5d5d Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 18 Aug 2023 13:57:50 +0100 Subject: [PATCH 236/557] ci, gha: Add "x86_64: Linux (Debian stable)" GitHub Actions job --- .github/workflows/ci.yml | 65 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index f9518c4ac4..fb8061403d 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -61,6 +61,71 @@ jobs: cache-from: type=gha cache-to: type=gha,mode=min + linux_debian: + name: "x86_64: Linux (Debian stable)" + runs-on: ubuntu-latest + needs: docker_cache + + strategy: + fail-fast: false + matrix: + configuration: + - env_vars: { WIDEMUL: 'int64', RECOVERY: 'yes' } + - env_vars: { WIDEMUL: 'int64', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int128' } + - env_vars: { WIDEMUL: 'int128_struct', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int128', RECOVERY: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes' } + - env_vars: { WIDEMUL: 'int128', ASM: 'x86_64', ELLSWIFT: 'yes' } + - env_vars: { RECOVERY: 'yes', SCHNORRSIG: 'yes' } + - env_vars: { CTIMETESTS: 'no', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', CPPFLAGS: '-DVERIFY' } + - env_vars: { BUILD: 'distcheck', WITH_VALGRIND: 'no', CTIMETESTS: 'no', BENCH: 'no' } + - env_vars: { CPPFLAGS: '-DDETERMINISTIC' } + - env_vars: { CFLAGS: '-O0', CTIMETESTS: 'no' } + - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } + - env_vars: { ECMULTGENPRECISION: 8, ECMULTWINDOW: 4 } + cc: + - 'gcc' + - 'clang' + - 'gcc-snapshot' + - 'clang-snapshot' + + env: + CC: ${{ matrix.cc }} + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + env: ${{ matrix.configuration.env_vars }} + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From 6617a620d95743f51486daf6c33be9cead89a32a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 18 Aug 2023 13:58:46 +0100 Subject: [PATCH 237/557] ci: Remove "x86_64: Linux (Debian stable)" task from Cirrus CI --- .cirrus.yml | 32 -------------------------------- 1 file changed, 32 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 9d3807f4eb..5b4db07661 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,38 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -task: - name: "x86_64: Linux (Debian stable)" - << : *LINUX_CONTAINER - matrix: - - env: {WIDEMUL: int64, RECOVERY: yes} - - env: {WIDEMUL: int64, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - - env: {WIDEMUL: int128} - - env: {WIDEMUL: int128_struct, ELLSWIFT: yes} - - env: {WIDEMUL: int128, RECOVERY: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - - env: {WIDEMUL: int128, ECDH: yes, SCHNORRSIG: yes} - - env: {WIDEMUL: int128, ASM: x86_64 , ELLSWIFT: yes} - - env: { RECOVERY: yes, SCHNORRSIG: yes} - - env: {CTIMETESTS: no, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, CPPFLAGS: -DVERIFY} - - env: {BUILD: distcheck, WITH_VALGRIND: no, CTIMETESTS: no, BENCH: no} - - env: {CPPFLAGS: -DDETERMINISTIC} - - env: {CFLAGS: -O0, CTIMETESTS: no} - - env: {CFLAGS: -O1, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes} - - env: { ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } - - env: { ECMULTGENPRECISION: 8, ECMULTWINDOW: 4 } - matrix: - - env: - CC: gcc - - env: - CC: clang - - env: - CC: gcc-snapshot - - env: - CC: clang-snapshot - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - task: name: "i686: Linux (Debian stable)" << : *LINUX_CONTAINER From 4ad4914bd15bd856eddb306d86588bdacabb1184 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 18 Aug 2023 17:05:25 +0100 Subject: [PATCH 238/557] ci, gha: Add `retry_builder` Docker image builder This change is aimed at significantly reducing the frequency of failures caused by intermittent network timeouts. --- .github/actions/run-in-docker-action/action.yml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index 203383d0b1..97582df2f7 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -20,6 +20,18 @@ runs: network=host - uses: docker/build-push-action@v4 + id: main_builder + continue-on-error: true + with: + context: . + file: ${{ inputs.dockerfile }} + tags: ${{ inputs.tag }} + load: true + cache-from: type=gha + + - uses: docker/build-push-action@v4 + id: retry_builder + if: steps.main_builder.outcome == 'failure' with: context: . file: ${{ inputs.dockerfile }} From e10878f58e4022dbac6e215a89c980a17b95044b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 19 Aug 2023 18:02:08 +0100 Subject: [PATCH 239/557] ci, gha: Drop `driver-opts.network` input for `setup-buildx-action` --- .github/actions/run-in-docker-action/action.yml | 4 ---- 1 file changed, 4 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index 97582df2f7..79cf9d6233 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -14,10 +14,6 @@ runs: using: "composite" steps: - uses: docker/setup-buildx-action@v2 - with: - # See: https://github.com/moby/buildkit/issues/3969. - driver-opts: | - network=host - uses: docker/build-push-action@v4 id: main_builder From ef9fe959deb638228bca8f1068f078e87e271b02 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 20 Aug 2023 11:15:45 +0100 Subject: [PATCH 240/557] ci: Drop no longer needed workaround The https://sourceware.org/bugzilla/show_bug.cgi?id=27008 bug has been resolved since libc 2.33. Debian Bookworm has libc 2.36. --- .cirrus.yml | 2 -- 1 file changed, 2 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 9d3807f4eb..dec877b1a5 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -128,8 +128,6 @@ task: ELLSWIFT: yes CTIMETESTS: no test_script: - # https://sourceware.org/bugzilla/show_bug.cgi?id=27008 - - rm /etc/ld.so.cache - ./ci/ci.sh << : *CAT_LOGS From 880be8af99480e36f3af77b1ee1da17465a91df5 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 21 Aug 2023 15:32:20 +0100 Subject: [PATCH 241/557] ci: Move "i686: Linux (Debian stable)" from Cirrus to GiHub Actions --- .cirrus.yml | 18 -------------- .github/workflows/ci.yml | 51 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+), 18 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 4a1a56d385..7046b85a9f 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,24 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -task: - name: "i686: Linux (Debian stable)" - << : *LINUX_CONTAINER - env: - HOST: i686-linux-gnu - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - matrix: - - env: - CC: i686-linux-gnu-gcc - - env: - CC: clang --target=i686-pc-linux-gnu -isystem /usr/i686-linux-gnu/include - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - task: name: "s390x (big-endian): Linux (Debian stable, QEMU)" << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index fb8061403d..19832b4cd2 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -126,6 +126,57 @@ jobs: run: env if: ${{ always() }} + i686_debian: + name: "i686: Linux (Debian stable)" + runs-on: ubuntu-latest + needs: docker_cache + + strategy: + fail-fast: false + matrix: + cc: + - 'i686-linux-gnu-gcc' + - 'clang --target=i686-pc-linux-gnu -isystem /usr/i686-linux-gnu/include' + + env: + HOST: 'i686-linux-gnu' + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CC: ${{ matrix.cc }} + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From ea33914e00ef1d4117cdb608c96dd3d2d969aa72 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 21 Aug 2023 15:32:56 +0100 Subject: [PATCH 242/557] ci: Move "s390x (big-endian): Linux..." from Cirrus to GitHub Actions --- .cirrus.yml | 17 --------------- .github/workflows/ci.yml | 47 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 47 insertions(+), 17 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 7046b85a9f..0d8adcffa1 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,23 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -task: - name: "s390x (big-endian): Linux (Debian stable, QEMU)" - << : *LINUX_CONTAINER - env: - WRAPPER_CMD: qemu-s390x - SECP256K1_TEST_ITERS: 16 - HOST: s390x-linux-gnu - WITH_VALGRIND: no - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: no - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - task: name: "ARM32: Linux (Debian stable, QEMU)" << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 19832b4cd2..d53853a2e4 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -177,6 +177,53 @@ jobs: run: env if: ${{ always() }} + s390x_debian: + name: "s390x (big-endian): Linux (Debian stable, QEMU)" + runs-on: ubuntu-latest + needs: docker_cache + + env: + WRAPPER_CMD: 'qemu-s390x' + SECP256K1_TEST_ITERS: 16 + HOST: 's390x-linux-gnu' + WITH_VALGRIND: 'no' + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'no' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From 0a16de671c0cb15cbdd31d56635d21ec95ed788d Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 21 Aug 2023 15:33:08 +0100 Subject: [PATCH 243/557] ci: Move "ARM32: Linux..." from Cirrus to GitHub Actions --- .cirrus.yml | 20 --------------- .github/workflows/ci.yml | 55 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 20 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 0d8adcffa1..ead1df3c2f 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,26 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -task: - name: "ARM32: Linux (Debian stable, QEMU)" - << : *LINUX_CONTAINER - env: - WRAPPER_CMD: qemu-arm - SECP256K1_TEST_ITERS: 16 - HOST: arm-linux-gnueabihf - WITH_VALGRIND: no - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: no - matrix: - - env: {} - - env: {EXPERIMENTAL: yes, ASM: arm32} - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - task: name: "ARM64: Linux (Debian stable, QEMU)" << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index d53853a2e4..c345440be4 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -224,6 +224,61 @@ jobs: run: env if: ${{ always() }} + arm32_debian: + name: "ARM32: Linux (Debian stable, QEMU)" + runs-on: ubuntu-latest + needs: docker_cache + + strategy: + fail-fast: false + matrix: + configuration: + - env_vars: {} + - env_vars: { EXPERIMENTAL: 'yes', ASM: 'arm32' } + + env: + WRAPPER_CMD: 'qemu-arm' + SECP256K1_TEST_ITERS: 16 + HOST: 'arm-linux-gnueabihf' + WITH_VALGRIND: 'no' + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'no' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + env: ${{ matrix.configuration.env_vars }} + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From 7782dc827657288e90fd4fdca5fbf077e50b06c5 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 21 Aug 2023 15:33:19 +0100 Subject: [PATCH 244/557] ci: Move "ARM64: Linux..." from Cirrus to GitHub Actions --- .cirrus.yml | 17 --------------- .github/workflows/ci.yml | 47 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 47 insertions(+), 17 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index ead1df3c2f..9665589958 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,23 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -task: - name: "ARM64: Linux (Debian stable, QEMU)" - << : *LINUX_CONTAINER - env: - WRAPPER_CMD: qemu-aarch64 - SECP256K1_TEST_ITERS: 16 - HOST: aarch64-linux-gnu - WITH_VALGRIND: no - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: no - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - task: name: "ppc64le: Linux (Debian stable, QEMU)" << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index c345440be4..cb0ad0079c 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -279,6 +279,53 @@ jobs: run: env if: ${{ always() }} + arm64_debian: + name: "ARM64: Linux (Debian stable, QEMU)" + runs-on: ubuntu-latest + needs: docker_cache + + env: + WRAPPER_CMD: 'qemu-aarch64' + SECP256K1_TEST_ITERS: 16 + HOST: 'aarch64-linux-gnu' + WITH_VALGRIND: 'no' + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'no' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From fc3dea29eacc46926fed6428caf8355f732bdf5b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 21 Aug 2023 15:33:27 +0100 Subject: [PATCH 245/557] ci: Move "ppc64le: Linux..." from Cirrus to GitHub Actions --- .cirrus.yml | 17 --------------- .github/workflows/ci.yml | 47 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 47 insertions(+), 17 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 9665589958..53380e4d5f 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,23 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -task: - name: "ppc64le: Linux (Debian stable, QEMU)" - << : *LINUX_CONTAINER - env: - WRAPPER_CMD: qemu-ppc64le - SECP256K1_TEST_ITERS: 16 - HOST: powerpc64le-linux-gnu - WITH_VALGRIND: no - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: no - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - # Sanitizers task: << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index cb0ad0079c..65e47998f8 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -326,6 +326,53 @@ jobs: run: env if: ${{ always() }} + ppc64le_debian: + name: "ppc64le: Linux (Debian stable, QEMU)" + runs-on: ubuntu-latest + needs: docker_cache + + env: + WRAPPER_CMD: 'qemu-ppc64le' + SECP256K1_TEST_ITERS: 16 + HOST: 'powerpc64le-linux-gnu' + WITH_VALGRIND: 'no' + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'no' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From ee1be62d84bf6d81e0ed574ef98e980d61a19227 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 22 Aug 2023 15:02:30 +0100 Subject: [PATCH 246/557] ci: Use concurrency for pull requests only Otherwise, any previously pending workflow will be canceled on the following push. --- .github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 65e47998f8..8da64d0ee1 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -8,8 +8,8 @@ on: - '**' concurrency: - group: ${{ github.ref }} - cancel-in-progress: ${{ github.event_name == 'pull_request' }} + group: ${{ github.event_name != 'pull_request' && github.run_id || github.ref }} + cancel-in-progress: true env: ### compiler options From c22ac27529003e828d8a873ca6439f6978e2e1be Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 23 Aug 2023 10:24:05 +0100 Subject: [PATCH 247/557] ci: Move sanitizers task from Cirrus to GitHub Actions --- .cirrus.yml | 44 --------------- .github/workflows/ci.yml | 115 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 115 insertions(+), 44 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 53380e4d5f..7ea978e43d 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,50 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -# Sanitizers -task: - << : *LINUX_CONTAINER - env: - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: no - matrix: - - name: "Valgrind (memcheck)" - container: - cpu: 2 - env: - # The `--error-exitcode` is required to make the test fail if valgrind found errors, otherwise it'll return 0 (https://www.valgrind.org/docs/manual/manual-core.html) - WRAPPER_CMD: "valgrind --error-exitcode=42" - SECP256K1_TEST_ITERS: 2 - - name: "UBSan, ASan, LSan" - container: - memory: 2G - env: - CFLAGS: "-fsanitize=undefined,address -g" - UBSAN_OPTIONS: "print_stacktrace=1:halt_on_error=1" - ASAN_OPTIONS: "strict_string_checks=1:detect_stack_use_after_return=1:detect_leaks=1" - LSAN_OPTIONS: "use_unaligned=1" - SECP256K1_TEST_ITERS: 32 - # Try to cover many configurations with just a tiny matrix. - matrix: - - env: - ASM: auto - - env: - ASM: no - ECMULTGENPRECISION: 2 - ECMULTWINDOW: 2 - matrix: - - env: - CC: clang - - env: - HOST: i686-linux-gnu - CC: i686-linux-gnu-gcc - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - # Memory sanitizers task: << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 8da64d0ee1..b46cdfd3b5 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -373,6 +373,121 @@ jobs: run: env if: ${{ always() }} + valgrind_debian: + name: "Valgrind (memcheck)" + runs-on: ubuntu-latest + needs: docker_cache + + strategy: + fail-fast: false + matrix: + configuration: + - env_vars: { CC: 'clang', ASM: 'auto' } + - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'auto' } + - env_vars: { CC: 'clang', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } + - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } + + env: + # The `--error-exitcode` is required to make the test fail if valgrind found errors, + # otherwise it will return 0 (https://www.valgrind.org/docs/manual/manual-core.html). + WRAPPER_CMD: 'valgrind --error-exitcode=42' + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'no' + SECP256K1_TEST_ITERS: 2 + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + env: ${{ matrix.configuration.env_vars }} + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + + sanitizers_debian: + name: "UBSan, ASan, LSan" + runs-on: ubuntu-latest + needs: docker_cache + + strategy: + fail-fast: false + matrix: + configuration: + - env_vars: { CC: 'clang', ASM: 'auto' } + - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'auto' } + - env_vars: { CC: 'clang', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } + - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } + + env: + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'no' + CFLAGS: '-fsanitize=undefined,address -g' + UBSAN_OPTIONS: 'print_stacktrace=1:halt_on_error=1' + ASAN_OPTIONS: 'strict_string_checks=1:detect_stack_use_after_return=1:detect_leaks=1' + LSAN_OPTIONS: 'use_unaligned=1' + SECP256K1_TEST_ITERS: 32 + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + env: ${{ matrix.configuration.env_vars }} + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From d51fb0a533e5ae34b216527ea32281ff498310dc Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 23 Aug 2023 10:24:15 +0100 Subject: [PATCH 248/557] ci: Move "MSan" from Cirrus to GitHub Actions --- .cirrus.yml | 27 ------------------ .github/workflows/ci.yml | 59 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+), 27 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 7ea978e43d..3ed4355ae4 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,33 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -# Memory sanitizers -task: - << : *LINUX_CONTAINER - name: "MSan" - env: - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - CTIMETESTS: yes - CC: clang - SECP256K1_TEST_ITERS: 32 - ASM: no - WITH_VALGRIND: no - container: - memory: 2G - matrix: - - env: - CFLAGS: "-fsanitize=memory -g" - - env: - ECMULTGENPRECISION: 2 - ECMULTWINDOW: 2 - CFLAGS: "-fsanitize=memory -g -O3" - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - task: name: "C++ -fpermissive (entire project)" << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index b46cdfd3b5..7edc8d26f7 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -488,6 +488,65 @@ jobs: run: env if: ${{ always() }} + msan_debian: + name: "MSan" + runs-on: ubuntu-latest + needs: docker_cache + + strategy: + fail-fast: false + matrix: + configuration: + - env_vars: + CFLAGS: '-fsanitize=memory -g' + - env_vars: + ECMULTGENPRECISION: 2 + ECMULTWINDOW: 2 + CFLAGS: '-fsanitize=memory -g -O3' + + env: + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + CTIMETESTS: 'yes' + CC: 'clang' + SECP256K1_TEST_ITERS: 32 + ASM: 'no' + WITH_VALGRIND: 'no' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + env: ${{ matrix.configuration.env_vars }} + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} runs-on: ubuntu-latest From 61fc3a2dc883a5ffda43658337ec94d3306eb77f Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 23 Aug 2023 10:24:24 +0100 Subject: [PATCH 249/557] ci: Move "C++ -fpermissive..." from Cirrus to GitHub Actions --- .cirrus.yml | 16 -------------- .github/workflows/ci.yml | 46 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+), 16 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 3ed4355ae4..e805dd620b 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -64,22 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER # More than enough for our scripts. memory: 2G -task: - name: "C++ -fpermissive (entire project)" - << : *LINUX_CONTAINER - env: - CC: g++ - CFLAGS: -fpermissive -g - CPPFLAGS: -DSECP256K1_CPLUSPLUS_TEST_OVERRIDE - WERROR_CFLAGS: - ECDH: yes - RECOVERY: yes - SCHNORRSIG: yes - ELLSWIFT: yes - test_script: - - ./ci/ci.sh - << : *CAT_LOGS - task: name: "C++ (public headers)" << : *LINUX_CONTAINER diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 7edc8d26f7..3990e1570a 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -722,6 +722,52 @@ jobs: run: | cl.exe -c -WX -TP include/*.h + cxx_fpermissive_debian: + name: "C++ -fpermissive (entire project)" + runs-on: ubuntu-latest + needs: docker_cache + + env: + CC: 'g++' + CFLAGS: '-fpermissive -g' + CPPFLAGS: '-DSECP256K1_CPLUSPLUS_TEST_OVERRIDE' + WERROR_CFLAGS: + ECDH: 'yes' + RECOVERY: 'yes' + SCHNORRSIG: 'yes' + ELLSWIFT: 'yes' + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: > + git config --global --add safe.directory ${{ github.workspace }} && + ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + sage: name: "SageMath prover" runs-on: ubuntu-latest From 676ed8f9cf001ebaadf53d5c11e32f7a6b1e5649 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 23 Aug 2023 10:59:26 +0100 Subject: [PATCH 250/557] ci: Move "C++ (public headers)" from Cirrus to GitHub Actions --- .cirrus.yml | 72 ---------------------------------------- .github/workflows/ci.yml | 18 ++++++++++ 2 files changed, 18 insertions(+), 72 deletions(-) delete mode 100644 .cirrus.yml diff --git a/.cirrus.yml b/.cirrus.yml deleted file mode 100644 index e805dd620b..0000000000 --- a/.cirrus.yml +++ /dev/null @@ -1,72 +0,0 @@ -env: - ### cirrus config - CIRRUS_CLONE_DEPTH: 1 - ### compiler options - HOST: - WRAPPER_CMD: - # Specific warnings can be disabled with -Wno-error=foo. - # -pedantic-errors is not equivalent to -Werror=pedantic and thus not implied by -Werror according to the GCC manual. - WERROR_CFLAGS: -Werror -pedantic-errors - MAKEFLAGS: -j4 - BUILD: check - ### secp256k1 config - ECMULTWINDOW: auto - ECMULTGENPRECISION: auto - ASM: no - WIDEMUL: auto - WITH_VALGRIND: yes - EXTRAFLAGS: - ### secp256k1 modules - EXPERIMENTAL: no - ECDH: no - RECOVERY: no - SCHNORRSIG: no - ELLSWIFT: no - ### test options - SECP256K1_TEST_ITERS: - BENCH: yes - SECP256K1_BENCH_ITERS: 2 - CTIMETESTS: yes - # Compile and run the tests - EXAMPLES: yes - -# https://cirrus-ci.org/pricing/#compute-credits -credits_snippet: &CREDITS - # Don't use any credits for now. - use_compute_credits: false - -cat_logs_snippet: &CAT_LOGS - always: - cat_tests_log_script: - - cat tests.log || true - cat_noverify_tests_log_script: - - cat noverify_tests.log || true - cat_exhaustive_tests_log_script: - - cat exhaustive_tests.log || true - cat_ctime_tests_log_script: - - cat ctime_tests.log || true - cat_bench_log_script: - - cat bench.log || true - cat_config_log_script: - - cat config.log || true - cat_test_env_script: - - cat test_env.log || true - cat_ci_env_script: - - env - -linux_container_snippet: &LINUX_CONTAINER - container: - dockerfile: ci/linux-debian.Dockerfile - # Reduce number of CPUs to be able to do more builds in parallel. - cpu: 1 - # Gives us more CPUs for free if they're available. - greedy: true - # More than enough for our scripts. - memory: 2G - -task: - name: "C++ (public headers)" - << : *LINUX_CONTAINER - test_script: - - g++ -Werror include/*.h - - clang -Werror -x c++-header include/*.h diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 3990e1570a..e1307b99c7 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -768,6 +768,24 @@ jobs: run: env if: ${{ always() }} + cxx_headers_debian: + name: "C++ (public headers)" + runs-on: ubuntu-latest + needs: docker_cache + + steps: + - name: Checkout + uses: actions/checkout@v3 + + - name: CI script + uses: ./.github/actions/run-in-docker-action + with: + dockerfile: ./ci/linux-debian.Dockerfile + tag: linux-debian-image + command: | + g++ -Werror include/*.h + clang -Werror -x c++-header include/*.h + sage: name: "SageMath prover" runs-on: ubuntu-latest From 317a4c48f058755019475de79896230dadc6474c Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 23 Aug 2023 21:18:53 +0100 Subject: [PATCH 251/557] ci: Move `git config ...` to `run-in-docker-action` --- .github/actions/run-in-docker-action/action.yml | 5 ++++- .github/workflows/ci.yml | 11 ----------- 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index 79cf9d6233..30e83ff295 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -41,5 +41,8 @@ runs: $(echo '${{ toJSON(env) }}' | jq -r 'keys[] | "--env \(.) "') \ --volume ${{ github.workspace }}:${{ github.workspace }} \ --workdir ${{ github.workspace }} \ - ${{ inputs.tag }} bash -c "${{ inputs.command }}" + ${{ inputs.tag }} bash -c " + git config --global --add safe.directory ${{ github.workspace }} + ${{ inputs.command }} + " shell: bash diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index e1307b99c7..35b0ca0c88 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -105,7 +105,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -156,7 +155,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -203,7 +201,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -258,7 +255,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -305,7 +301,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -352,7 +347,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -409,7 +403,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -467,7 +460,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -526,7 +518,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -583,7 +574,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true @@ -747,7 +737,6 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image command: > - git config --global --add safe.directory ${{ github.workspace }} && ./ci/ci.sh - run: cat tests.log || true From cce045630407e662c90279abb2b0e71161f24e74 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 23 Aug 2023 21:31:57 +0100 Subject: [PATCH 252/557] ci: Make repetitive command the default one --- .../actions/run-in-docker-action/action.yml | 3 ++- .github/workflows/ci.yml | 22 ------------------- 2 files changed, 2 insertions(+), 23 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index 30e83ff295..d357c3cf75 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -9,7 +9,8 @@ inputs: required: true command: description: 'A command to run in a container' - required: true + required: false + default: ./ci/ci.sh runs: using: "composite" steps: diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 35b0ca0c88..441cf41ee9 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -104,8 +104,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -154,8 +152,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -200,8 +196,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -254,8 +248,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -300,8 +292,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -346,8 +336,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -402,8 +390,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -459,8 +445,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -517,8 +501,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -573,8 +555,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} @@ -736,8 +716,6 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - command: > - ./ci/ci.sh - run: cat tests.log || true if: ${{ always() }} From c223d7e33d50b1da0b3ba617c83534185428b3d5 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 28 Aug 2023 17:49:45 +0100 Subject: [PATCH 253/557] ci: Switch macOS from Ventura to Monterey and add Valgrind --- .../install-homebrew-valgrind/action.yml | 33 +++++++++++++++++++ .github/workflows/ci.yml | 23 ++++++------- 2 files changed, 45 insertions(+), 11 deletions(-) create mode 100644 .github/actions/install-homebrew-valgrind/action.yml diff --git a/.github/actions/install-homebrew-valgrind/action.yml b/.github/actions/install-homebrew-valgrind/action.yml new file mode 100644 index 0000000000..094ff891f7 --- /dev/null +++ b/.github/actions/install-homebrew-valgrind/action.yml @@ -0,0 +1,33 @@ +name: "Install Valgrind" +description: "Install Homebrew's Valgrind package and cache it." +runs: + using: "composite" + steps: + - run: | + brew tap LouisBrunner/valgrind + brew fetch --HEAD LouisBrunner/valgrind/valgrind + echo "CI_HOMEBREW_CELLAR_VALGRIND=$(brew --cellar valgrind)" >> "$GITHUB_ENV" + shell: bash + + - run: | + sw_vers > valgrind_fingerprint + brew --version >> valgrind_fingerprint + git -C "$(brew --cache)/valgrind--git" rev-parse HEAD >> valgrind_fingerprint + cat valgrind_fingerprint + shell: bash + + - uses: actions/cache@v3 + id: cache + with: + path: ${{ env.CI_HOMEBREW_CELLAR_VALGRIND }} + key: ${{ github.job }}-valgrind-${{ hashFiles('valgrind_fingerprint') }} + + - if: steps.cache.outputs.cache-hit != 'true' + run: | + brew install --HEAD LouisBrunner/valgrind/valgrind + shell: bash + + - if: steps.cache.outputs.cache-hit == 'true' + run: | + brew link valgrind + shell: bash diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 441cf41ee9..b0ed412bce 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -575,27 +575,28 @@ jobs: if: ${{ always() }} macos-native: - name: "x86_64: macOS Ventura" + name: "x86_64: macOS Monterey" # See: https://github.com/actions/runner-images#available-images. - runs-on: macos-13 # Use M1 once available https://github.com/github/roadmap/issues/528 + runs-on: macos-12 # Use M1 once available https://github.com/github/roadmap/issues/528 env: - ASM: 'no' - WITH_VALGRIND: 'no' - CTIMETESTS: 'no' CC: 'clang' + HOMEBREW_NO_AUTO_UPDATE: 1 + HOMEBREW_NO_INSTALL_CLEANUP: 1 strategy: fail-fast: false matrix: env_vars: - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } - { WIDEMUL: 'int128_struct', ECMULTGENPRECISION: 2, ECMULTWINDOW: 4 } - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', SCHNORRSIG: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY', CTIMETESTS: 'no' } - BUILD: 'distcheck' steps: @@ -603,13 +604,13 @@ jobs: uses: actions/checkout@v3 - name: Install Homebrew packages - env: - HOMEBREW_NO_AUTO_UPDATE: 1 - HOMEBREW_NO_INSTALL_CLEANUP: 1 run: | brew install automake libtool gcc ln -s $(brew --prefix gcc)/bin/gcc-?? /usr/local/bin/gcc + - name: Install and cache Valgrind + uses: ./.github/actions/install-homebrew-valgrind + - name: CI script env: ${{ matrix.env_vars }} run: ./ci/ci.sh From 6ebe7d2bb39978e70d85a718919d4af31cc00bc2 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 30 Aug 2023 18:11:36 +0200 Subject: [PATCH 254/557] ci/Dockerfile: Always use versioned clang packages This commit switches to a new strategy to make sure we're installing the most recent LLVM packages. Before this commit, we used the unversioned LLVM packages (e.g., `clang` instead of `clang-18`), which are supposed to provide the latest snapshot, but this is broken for arm64 [1], which we want to add in a later PR. Anyway, the new approach is cleaner because it does not require us to fiddle with the installed `clang` package by removing a symlink. [1] https://github.com/llvm/llvm-project/issues/64790 Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> --- ci/linux-debian.Dockerfile | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 48714b42e7..b7a13a0641 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -46,17 +46,21 @@ RUN mkdir gcc && cd gcc && \ cd ../.. && rm -rf gcc && \ ln -s /opt/gcc-snapshot/bin/gcc /usr/bin/gcc-snapshot -# Install clang snapshot -RUN wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc && \ +# Install clang snapshot, see https://apt.llvm.org/ +RUN \ + # Setup GPG keys of LLVM repository + apt-get update && apt-get install --no-install-recommends -y wget && \ + wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc && \ # Add repository for this Debian release . /etc/os-release && echo "deb http://apt.llvm.org/${VERSION_CODENAME} llvm-toolchain-${VERSION_CODENAME} main" >> /etc/apt/sources.list && \ - # Install clang snapshot - apt-get update && apt-get install --no-install-recommends -y clang && \ - # Remove just the "clang" symlink again - apt-get remove -y clang && \ - # We should have exactly two clang versions now - ls /usr/bin/clang* && \ - [[ $(ls /usr/bin/clang-?? | sort | wc -l) -eq "2" ]] && \ - # Create symlinks for them - ln -s $(ls /usr/bin/clang-?? | sort | tail -1) /usr/bin/clang-snapshot && \ - ln -s $(ls /usr/bin/clang-?? | sort | head -1) /usr/bin/clang + apt-get update && \ + # Determine the version number of the LLVM development branch + LLVM_VERSION=$(apt-cache search --names-only '^clang-[0-9]+$' | sort -V | tail -1 | cut -f1 -d" " | cut -f2 -d"-" ) && \ + # Install + apt-get install --no-install-recommends -y "clang-${LLVM_VERSION}" && \ + # Create symlink + ln -s "/usr/bin/clang-${LLVM_VERSION}" /usr/bin/clang-snapshot && \ + # Clean up + apt-get autoremove -y wget && \ + apt-get clean + From 4b8a647ad3a59c2421d1d4c6e653f21d453e2612 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 30 Aug 2023 18:15:43 +0200 Subject: [PATCH 255/557] ci/gha: Add ARM64 QEMU jobs for clang and clang-snapshot --- .github/workflows/ci.yml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index b0ed412bce..e139afe36b 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -283,11 +283,22 @@ jobs: ELLSWIFT: 'yes' CTIMETESTS: 'no' + strategy: + fail-fast: false + matrix: + configuration: + - env_vars: { } # gcc + - env_vars: # clang + CC: 'clang --target=aarch64-linux-gnu' + - env_vars: # clang-snapshot + CC: 'clang-snapshot --target=aarch64-linux-gnu' + steps: - name: Checkout uses: actions/checkout@v3 - name: CI script + env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile From 2f0d3bbffb288621f4232c90424f77d44cc69166 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 30 Aug 2023 17:13:38 +0200 Subject: [PATCH 256/557] ci/Dockerfile: Warn if `ulimit -n` is too high when running Docker The underlying issue does not affect our CI hosts, but is an issue on my development machine (Arch Linux). In particular, this affects the vanilla configuration of Docker on systemd, which has effectively no limit: https://github.com/docker/packaging/blob/11400a3f5a20f2e3eecc3e6347a2ad9ce41278c7/pkg/docker-engine/common/systemd/docker.service#L31 I hope this saves future generations some precious hours of their life. --- ci/linux-debian.Dockerfile | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index b7a13a0641..dd4cf8b3ac 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -2,6 +2,17 @@ FROM debian:stable-slim SHELL ["/bin/bash", "-c"] +WORKDIR /root + +# A too high maximum number of file descriptors (with the default value +# inherited from the docker host) can cause issues with some of our tools: +# - sanitizers hanging: https://github.com/google/sanitizers/issues/1662 +# - valgrind crashing: https://stackoverflow.com/a/75293014 +# This is not be a problem on our CI hosts, but developers who run the image +# on their machines may run into this (e.g., on Arch Linux), so warn them. +# (Note that .bashrc is only executed in interactive bash shells.) +RUN echo 'if [[ $(ulimit -n) -gt 200000 ]]; then echo "WARNING: Very high value reported by \"ulimit -n\". Consider passing \"--ulimit nofile=32768\" to \"docker run\"."; fi' >> /root/.bashrc + RUN dpkg --add-architecture i386 && \ dpkg --add-architecture s390x && \ dpkg --add-architecture armhf && \ @@ -24,8 +35,6 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ gcc-mingw-w64-i686-win32 wine32 \ python3 -WORKDIR /root - # Build and install gcc snapshot ARG GCC_SNAPSHOT_MAJOR=14 RUN mkdir gcc && cd gcc && \ From e78c7b68eb7e91cf9b88408c053867f148d62ffa Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 30 Aug 2023 18:25:06 +0200 Subject: [PATCH 257/557] ci/Dockerfile: Reduce size of Docker image further - No need to have wget installed - Clean up rm -rf /var/lib/apt/lists/, see https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#apt-get --- ci/linux-debian.Dockerfile | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index dd4cf8b3ac..e719907e89 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -22,7 +22,7 @@ RUN dpkg --add-architecture i386 && \ # dkpg-dev: to make pkg-config work in cross-builds # llvm: for llvm-symbolizer, which is used by clang's UBSan for symbolized stack traces RUN apt-get update && apt-get install --no-install-recommends -y \ - git ca-certificates wget \ + git ca-certificates \ make automake libtool pkg-config dpkg-dev valgrind qemu-user \ gcc clang llvm libclang-rt-dev libc6-dbg \ g++ \ @@ -37,7 +37,8 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ # Build and install gcc snapshot ARG GCC_SNAPSHOT_MAJOR=14 -RUN mkdir gcc && cd gcc && \ +RUN apt-get update && apt-get install --no-install-recommends -y wget libgmp-dev libmpfr-dev libmpc-dev flex && \ + mkdir gcc && cd gcc && \ wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --level 1 --no-directories "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}" && \ wget "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}/sha512.sum" && \ sha512sum --check --ignore-missing sha512.sum && \ @@ -46,14 +47,13 @@ RUN mkdir gcc && cd gcc && \ [[ $(ls *.tar.xz | wc -l) -eq "1" ]] && \ tar xf *.tar.xz && \ mkdir gcc-build && cd gcc-build && \ - apt-get update && apt-get install --no-install-recommends -y libgmp-dev libmpfr-dev libmpc-dev flex && \ ../*/configure --prefix=/opt/gcc-snapshot --enable-languages=c --disable-bootstrap --disable-multilib --without-isl && \ make -j $(nproc) && \ make install && \ - apt-get autoremove -y libgmp-dev libmpfr-dev libmpc-dev flex && \ - apt-get clean && \ cd ../.. && rm -rf gcc && \ - ln -s /opt/gcc-snapshot/bin/gcc /usr/bin/gcc-snapshot + ln -s /opt/gcc-snapshot/bin/gcc /usr/bin/gcc-snapshot && \ + apt-get autoremove -y wget libgmp-dev libmpfr-dev libmpc-dev flex && \ + apt-get clean && rm -rf /var/lib/apt/lists/* # Install clang snapshot, see https://apt.llvm.org/ RUN \ @@ -71,5 +71,5 @@ RUN \ ln -s "/usr/bin/clang-${LLVM_VERSION}" /usr/bin/clang-snapshot && \ # Clean up apt-get autoremove -y wget && \ - apt-get clean + apt-get clean && rm -rf /var/lib/apt/lists/* From 2635068abf93ebcf7f200eef14acafc3300e32f7 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 30 Aug 2023 19:03:19 +0200 Subject: [PATCH 258/557] ci/gha: Let MSan continue checking after errors in all jobs --- .github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index e139afe36b..7d8a762152 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -485,11 +485,11 @@ jobs: matrix: configuration: - env_vars: - CFLAGS: '-fsanitize=memory -g' + CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -g' - env_vars: ECMULTGENPRECISION: 2 ECMULTWINDOW: 2 - CFLAGS: '-fsanitize=memory -g -O3' + CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -g -O3' env: ECDH: 'yes' From 875b0ada2526be92100034c4c7de045203de7e3f Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 28 Jul 2023 21:46:57 +0000 Subject: [PATCH 259/557] tests: remove unnecessary set_illegal_callback --- src/tests.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/tests.c b/src/tests.c index d3959406c7..1a78230e4f 100644 --- a/src/tests.c +++ b/src/tests.c @@ -496,7 +496,6 @@ static void run_scratch_tests(void) { secp256k1_scratch_space *scratch; secp256k1_scratch_space local_scratch; - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); secp256k1_context_set_error_callback(CTX, counting_illegal_callback_fn, &ecount); /* Test public API */ @@ -567,7 +566,6 @@ static void run_scratch_tests(void) { /* cleanup */ secp256k1_scratch_space_destroy(CTX, NULL); /* no-op */ - secp256k1_context_set_illegal_callback(CTX, NULL, NULL); secp256k1_context_set_error_callback(CTX, NULL, NULL); } From a1d52e3e125bb46dac2cf6daa699e9f15167e8d4 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 28 Jul 2023 21:51:37 +0000 Subject: [PATCH 260/557] tests: remove unnecessary test in run_ec_pubkey_parse_test This test tested whether setting the callback works correctly which should be tested in the context tests. --- src/tests.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/src/tests.c b/src/tests.c index 1a78230e4f..67bf654445 100644 --- a/src/tests.c +++ b/src/tests.c @@ -5983,7 +5983,6 @@ static void run_ec_pubkey_parse_test(void) { size_t len; int32_t i; int32_t ecount; - int32_t ecount2; ecount = 0; /* Nothing should be reading this far into pubkeyc. */ SECP256K1_CHECKMEM_UNDEFINE(&pubkeyc[65], 1); @@ -6104,15 +6103,8 @@ static void run_ec_pubkey_parse_test(void) { CHECK(len == 65); /* Multiple illegal args. Should still set arg error only once. */ ecount = 0; - ecount2 = 11; CHECK(secp256k1_ec_pubkey_parse(CTX, NULL, NULL, 65) == 0); CHECK(ecount == 1); - /* Does the illegal arg callback actually change the behavior? */ - secp256k1_context_set_illegal_callback(CTX, uncounting_illegal_callback_fn, &ecount2); - CHECK(secp256k1_ec_pubkey_parse(CTX, NULL, NULL, 65) == 0); - CHECK(ecount == 1); - CHECK(ecount2 == 10); - secp256k1_context_set_illegal_callback(CTX, NULL, NULL); /* Try a bunch of prefabbed points with all possible encodings. */ for (i = 0; i < SECP256K1_EC_PARSE_TEST_NVALID; i++) { ec_pubkey_parse_pointtest(valid[i], 1, 1); From f9b38894baee6b726217e28a4d4591ffdf233e47 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 4 Sep 2023 14:58:01 +0100 Subject: [PATCH 261/557] ci: Update `actions/checkout` version --- .github/workflows/ci.yml | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 7d8a762152..dce6d15a64 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -96,7 +96,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -145,7 +145,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script uses: ./.github/actions/run-in-docker-action @@ -189,7 +189,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script uses: ./.github/actions/run-in-docker-action @@ -240,7 +240,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -295,7 +295,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -340,7 +340,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script uses: ./.github/actions/run-in-docker-action @@ -393,7 +393,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -448,7 +448,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -504,7 +504,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -558,7 +558,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -612,7 +612,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: Install Homebrew packages run: | @@ -667,7 +667,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: Generate buildsystem run: cmake -E env CFLAGS="/WX ${{ matrix.configuration.cpp_flags }}" cmake -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON ${{ matrix.configuration.cmake_options }} @@ -695,7 +695,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: Add cl.exe to PATH uses: ilammy/msvc-dev-cmd@v1 @@ -721,7 +721,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script uses: ./.github/actions/run-in-docker-action @@ -754,7 +754,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script uses: ./.github/actions/run-in-docker-action @@ -774,7 +774,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@v4 - name: CI script run: | From 8659a01714c1b4fcd349ee1a7d733f6934c5d184 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 4 Sep 2023 15:04:37 +0100 Subject: [PATCH 262/557] ci: Add `release` job The new job runs checks outlined in the `doc/release-process.md`. --- .github/workflows/ci.yml | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index dce6d15a64..b9a9eaa82e 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -780,3 +780,27 @@ jobs: run: | cd sage sage prove_group_implementations.sage + + release: + runs-on: ubuntu-latest + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - run: ./autogen.sh && ./configure --enable-dev-mode && make distcheck + + - name: Check installation with Autotools + env: + CI_INSTALL: ${{ runner.temp }}/${{ github.run_id }}${{ github.action }} + run: | + ./autogen.sh && ./configure --prefix=${{ env.CI_INSTALL }} && make clean && make install && ls -RlAh ${{ env.CI_INSTALL }} + gcc -o ecdsa examples/ecdsa.c $(PKG_CONFIG_PATH=${{ env.CI_INSTALL }}/lib/pkgconfig pkg-config --cflags --libs libsecp256k1) -Wl,-rpath,"${{ env.CI_INSTALL }}/lib" && ./ecdsa + + - name: Check installation with CMake + env: + CI_BUILD: ${{ runner.temp }}/${{ github.run_id }}${{ github.action }}/build + CI_INSTALL: ${{ runner.temp }}/${{ github.run_id }}${{ github.action }}/install + run: | + cmake -B ${{ env.CI_BUILD }} -DCMAKE_INSTALL_PREFIX=${{ env.CI_INSTALL }} && cmake --build ${{ env.CI_BUILD }} --target install && ls -RlAh ${{ env.CI_INSTALL }} + gcc -o ecdsa examples/ecdsa.c -I ${{ env.CI_INSTALL }}/include -L ${{ env.CI_INSTALL }}/lib*/ -l secp256k1 -Wl,-rpath,"${{ env.CI_INSTALL }}/lib",-rpath,"${{ env.CI_INSTALL }}/lib64" && ./ecdsa From bd9d98d353e169eadb9b2fdba074417407442230 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 4 Sep 2023 16:05:29 +0100 Subject: [PATCH 263/557] doc: Align documented scripts with CI ones --- doc/release-process.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/release-process.md b/doc/release-process.md index ea6087c9ff..9e17885916 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -24,14 +24,14 @@ Perform these checks before creating a release: 2. Check installation with autotools: ```shell dir=$(mktemp -d) -./autogen.sh && ./configure --prefix=$dir && make clean && make install && ls -l $dir/include $dir/lib +./autogen.sh && ./configure --prefix=$dir && make clean && make install && ls -RlAh $dir gcc -o ecdsa examples/ecdsa.c $(PKG_CONFIG_PATH=$dir/lib/pkgconfig pkg-config --cflags --libs libsecp256k1) -Wl,-rpath,"$dir/lib" && ./ecdsa ``` 3. Check installation with CMake: ```shell dir=$(mktemp -d) build=$(mktemp -d) -cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -l $dir/include $dir/lib* +cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -RlAh $dir gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rpath,"$dir/lib",-rpath,"$dir/lib64" && ./ecdsa ``` From b0f7bfedc9fcb4f49fe965b16ae49d0e36c1d32b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 4 Sep 2023 17:05:53 +0100 Subject: [PATCH 264/557] doc: Do not mention soname in CHANGELOG.md "ABI Compatibility" section Co-authored-by: Tim Ruffing --- doc/release-process.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/release-process.md b/doc/release-process.md index 9e17885916..071598049c 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -41,7 +41,7 @@ gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rp * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) by * adding a section for the release (make sure that the version number is a link to a diff between the previous and new version), * removing the `[Unreleased]` section header, and - * including an entry for `### ABI Compatibility` if it doesn't exist that mentions the library soname of the release, + * including an entry for `### ABI Compatibility` if it doesn't exist, * sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and * if this is not a patch release * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` in `configure.ac` and From d9a85065a91d07660559b4be3388139dccb39e1d Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 4 Sep 2023 16:08:20 +0200 Subject: [PATCH 265/557] changelog: Catch up in preparation of release --- CHANGELOG.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index dacb0a3f48..109451db5d 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -13,6 +13,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - Header file `include/secp256k1_ellswift.h` which defines the new API. - Document `doc/ellswift.md` which explains the mathematical background of the scheme. - The [paper](https://eprint.iacr.org/2022/759) on which the scheme is based. + - We now test the library with unreleased development snapshots of GCC and Clang. This gives us an early chance to catch miscompilations and constant-time issues introduced by the compiler (such as those that led to the previous two releases). + +#### Fixed + - Fixed symbol visibility in Windows DLL builds, where three internal library symbols were wrongly exported. #### Changed - When consuming libsecp256k1 as a static library on Windows, the user must now define the `SECP256K1_STATIC` macro before including `secp256k1.h`. From 16339804c906a99a0b9bbe192d3de9fde021ff19 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 4 Sep 2023 16:12:22 +0200 Subject: [PATCH 266/557] release: Prepare for 0.4.0 --- CHANGELOG.md | 8 ++++++-- CMakeLists.txt | 8 ++++---- configure.ac | 12 ++++++------ 3 files changed, 16 insertions(+), 12 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 109451db5d..e8d8db5a1e 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.4.0] - 2023-09-04 #### Added - New module `ellswift` implements ElligatorSwift encoding for public keys and x-only Diffie-Hellman key exchange for them. @@ -21,6 +21,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 #### Changed - When consuming libsecp256k1 as a static library on Windows, the user must now define the `SECP256K1_STATIC` macro before including `secp256k1.h`. +#### ABI Compatibility +This release is backward compatible with the ABI of 0.3.0, 0.3.1, and 0.3.2. Symbol visibility is now believed to be handled properly on supported platforms and is now considered to be part of the ABI. Please report any improperly exported symbols as a bug. + ## [0.3.2] - 2023-05-13 We strongly recommend updating to 0.3.2 if you use or plan to use GCC >=13 to compile libsecp256k1. When in doubt, check the GCC version using `gcc -v`. @@ -101,7 +104,8 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...HEAD +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...HEAD +[0.4.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...v0.4.0 [0.3.2]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.1...v0.3.2 [0.3.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.0...v0.3.1 [0.3.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.2.0...v0.3.0 diff --git a/CMakeLists.txt b/CMakeLists.txt index 3107eb3bf1..cdac47ba9d 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.3.3 + VERSION 0.4.0 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -34,9 +34,9 @@ endif() # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -set(${PROJECT_NAME}_LIB_VERSION_CURRENT 2) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 3) -set(${PROJECT_NAME}_LIB_VERSION_AGE 0) +set(${PROJECT_NAME}_LIB_VERSION_CURRENT 3) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) +set(${PROJECT_NAME}_LIB_VERSION_AGE 1) set(CMAKE_C_STANDARD 90) set(CMAKE_C_EXTENSIONS OFF) diff --git a/configure.ac b/configure.ac index 1878496724..e3877850d3 100644 --- a/configure.ac +++ b/configure.ac @@ -4,18 +4,18 @@ AC_PREREQ([2.60]) # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) -define(_PKG_VERSION_MINOR, 3) -define(_PKG_VERSION_PATCH, 3) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_MINOR, 4) +define(_PKG_VERSION_PATCH, 0) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -define(_LIB_VERSION_CURRENT, 2) -define(_LIB_VERSION_REVISION, 3) -define(_LIB_VERSION_AGE, 0) +define(_LIB_VERSION_CURRENT, 3) +define(_LIB_VERSION_REVISION, 0) +define(_LIB_VERSION_AGE, 1) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From f8d7ea68dfb1a3cad1fbec2242e9affdf803fbbe Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 28 Jul 2023 22:00:56 +0000 Subject: [PATCH 267/557] tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID This commit also explicitly initializes shortpubkey. For some reason, removing surrounding, unrelated lines results in gcc warnings when configured with --enable-ctime-tests=no --with-valgrind=no. --- src/modules/ecdh/tests_impl.h | 25 +-- src/modules/extrakeys/tests_impl.h | 167 +++++------------ src/modules/recovery/tests_impl.h | 69 ++----- src/modules/schnorrsig/tests_impl.h | 67 ++----- src/tests.c | 278 +++++++--------------------- 5 files changed, 151 insertions(+), 455 deletions(-) diff --git a/src/modules/ecdh/tests_impl.h b/src/modules/ecdh/tests_impl.h index fa6f232227..6be96eacbe 100644 --- a/src/modules/ecdh/tests_impl.h +++ b/src/modules/ecdh/tests_impl.h @@ -25,32 +25,19 @@ static int ecdh_hash_function_custom(unsigned char *output, const unsigned char } static void test_ecdh_api(void) { - /* Setup context that just counts errors */ - secp256k1_context *tctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); secp256k1_pubkey point; unsigned char res[32]; unsigned char s_one[32] = { 0 }; - int32_t ecount = 0; s_one[31] = 1; - secp256k1_context_set_error_callback(tctx, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_illegal_callback(tctx, counting_illegal_callback_fn, &ecount); - CHECK(secp256k1_ec_pubkey_create(tctx, &point, s_one) == 1); + CHECK(secp256k1_ec_pubkey_create(CTX, &point, s_one) == 1); /* Check all NULLs are detected */ - CHECK(secp256k1_ecdh(tctx, res, &point, s_one, NULL, NULL) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_ecdh(tctx, NULL, &point, s_one, NULL, NULL) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ecdh(tctx, res, NULL, s_one, NULL, NULL) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_ecdh(tctx, res, &point, NULL, NULL, NULL) == 0); - CHECK(ecount == 3); - CHECK(secp256k1_ecdh(tctx, res, &point, s_one, NULL, NULL) == 1); - CHECK(ecount == 3); - - /* Cleanup */ - secp256k1_context_destroy(tctx); + CHECK(secp256k1_ecdh(CTX, res, &point, s_one, NULL, NULL) == 1); + CHECK_ILLEGAL(CTX, secp256k1_ecdh(CTX, NULL, &point, s_one, NULL, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_ecdh(CTX, res, NULL, s_one, NULL, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_ecdh(CTX, res, &point, NULL, NULL, NULL)); + CHECK(secp256k1_ecdh(CTX, res, &point, s_one, NULL, NULL) == 1); } static void test_ecdh_generator_basepoint(void) { diff --git a/src/modules/extrakeys/tests_impl.h b/src/modules/extrakeys/tests_impl.h index ae1655923b..c9d8506335 100644 --- a/src/modules/extrakeys/tests_impl.h +++ b/src/modules/extrakeys/tests_impl.h @@ -9,11 +9,6 @@ #include "../../../include/secp256k1_extrakeys.h" -static void set_counting_callbacks(secp256k1_context *ctx0, int *ecount) { - secp256k1_context_set_error_callback(ctx0, counting_illegal_callback_fn, ecount); - secp256k1_context_set_illegal_callback(ctx0, counting_illegal_callback_fn, ecount); -} - static void test_xonly_pubkey(void) { secp256k1_pubkey pk; secp256k1_xonly_pubkey xonly_pk, xonly_pk_tmp; @@ -28,10 +23,6 @@ static void test_xonly_pubkey(void) { int pk_parity; int i; - int ecount; - - set_counting_callbacks(CTX, &ecount); - secp256k1_testrand256(sk); memset(ones32, 0xFF, 32); secp256k1_testrand256(xy_sk); @@ -39,16 +30,12 @@ static void test_xonly_pubkey(void) { CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, &pk_parity, &pk) == 1); /* Test xonly_pubkey_from_pubkey */ - ecount = 0; CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, &pk_parity, &pk) == 1); - CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, NULL, &pk_parity, &pk) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_from_pubkey(CTX, NULL, &pk_parity, &pk)); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, NULL, &pk) == 1); - CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, &pk_parity, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, &pk_parity, NULL)); memset(&pk, 0, sizeof(pk)); - CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, &pk_parity, &pk) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, &pk_parity, &pk)); /* Choose a secret key such that the resulting pubkey and xonly_pubkey match. */ memset(sk, 0, sizeof(sk)); @@ -72,28 +59,21 @@ static void test_xonly_pubkey(void) { CHECK(secp256k1_fe_equal(&pk1.y, &y) == 1); /* Test xonly_pubkey_serialize and xonly_pubkey_parse */ - ecount = 0; - CHECK(secp256k1_xonly_pubkey_serialize(CTX, NULL, &xonly_pk) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_xonly_pubkey_serialize(CTX, buf32, NULL) == 0); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_serialize(CTX, NULL, &xonly_pk)); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_serialize(CTX, buf32, NULL)); CHECK(secp256k1_memcmp_var(buf32, zeros64, 32) == 0); - CHECK(ecount == 2); { /* A pubkey filled with 0s will fail to serialize due to pubkey_load * special casing. */ secp256k1_xonly_pubkey pk_tmp; memset(&pk_tmp, 0, sizeof(pk_tmp)); - CHECK(secp256k1_xonly_pubkey_serialize(CTX, buf32, &pk_tmp) == 0); + /* pubkey_load calls illegal callback */ + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_serialize(CTX, buf32, &pk_tmp)); } - /* pubkey_load called illegal callback */ - CHECK(ecount == 3); CHECK(secp256k1_xonly_pubkey_serialize(CTX, buf32, &xonly_pk) == 1); - ecount = 0; - CHECK(secp256k1_xonly_pubkey_parse(CTX, NULL, buf32) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_xonly_pubkey_parse(CTX, &xonly_pk, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_parse(CTX, NULL, buf32)); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_parse(CTX, &xonly_pk, NULL)); /* Serialization and parse roundtrip */ CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, NULL, &pk) == 1); @@ -125,7 +105,6 @@ static void test_xonly_pubkey(void) { CHECK(secp256k1_xonly_pubkey_parse(CTX, &xonly_pk, &rand33[1]) == 1); } } - CHECK(ecount == 2); } static void test_xonly_pubkey_comparison(void) { @@ -139,29 +118,26 @@ static void test_xonly_pubkey_comparison(void) { }; secp256k1_xonly_pubkey pk1; secp256k1_xonly_pubkey pk2; - int ecount = 0; - - set_counting_callbacks(CTX, &ecount); CHECK(secp256k1_xonly_pubkey_parse(CTX, &pk1, pk1_ser) == 1); CHECK(secp256k1_xonly_pubkey_parse(CTX, &pk2, pk2_ser) == 1); - CHECK(secp256k1_xonly_pubkey_cmp(CTX, NULL, &pk2) < 0); - CHECK(ecount == 1); - CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, NULL) > 0); - CHECK(ecount == 2); + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_xonly_pubkey_cmp(CTX, NULL, &pk2) < 0)); + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, NULL) > 0)); CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk2) < 0); CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk2, &pk1) > 0); CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk1) == 0); CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk2, &pk2) == 0); - CHECK(ecount == 2); memset(&pk1, 0, sizeof(pk1)); /* illegal pubkey */ - CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk2) < 0); - CHECK(ecount == 3); - CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk1) == 0); - CHECK(ecount == 5); - CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk2, &pk1) > 0); - CHECK(ecount == 6); + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk2) < 0)); + { + int32_t ecount = 0; + secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); + CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk1) == 0); + CHECK(ecount == 2); + secp256k1_context_set_illegal_callback(CTX, NULL, NULL); + } + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk2, &pk1) > 0)); } static void test_xonly_pubkey_tweak(void) { @@ -175,30 +151,20 @@ static void test_xonly_pubkey_tweak(void) { unsigned char tweak[32]; int i; - int ecount; - - set_counting_callbacks(CTX, &ecount); - memset(overflows, 0xff, sizeof(overflows)); secp256k1_testrand256(tweak); secp256k1_testrand256(sk); CHECK(secp256k1_ec_pubkey_create(CTX, &internal_pk, sk) == 1); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &internal_xonly_pk, &pk_parity, &internal_pk) == 1); - ecount = 0; CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, tweak) == 1); - CHECK(ecount == 0); CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, tweak) == 1); - CHECK(ecount == 0); CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, tweak) == 1); - CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, NULL, &internal_xonly_pk, tweak) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, NULL, tweak) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add(CTX, NULL, &internal_xonly_pk, tweak)); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, NULL, tweak)); /* NULL internal_xonly_pk zeroes the output_pk */ CHECK(secp256k1_memcmp_var(&output_pk, zeros64, sizeof(output_pk)) == 0); - CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, NULL) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, NULL)); /* NULL tweak zeroes the output_pk */ CHECK(secp256k1_memcmp_var(&output_pk, zeros64, sizeof(output_pk)) == 0); @@ -225,9 +191,7 @@ static void test_xonly_pubkey_tweak(void) { /* Invalid pk with a valid tweak */ memset(&internal_xonly_pk, 0, sizeof(internal_xonly_pk)); secp256k1_testrand256(tweak); - ecount = 0; - CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, tweak) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, tweak)); CHECK(secp256k1_memcmp_var(&output_pk, zeros64, sizeof(output_pk)) == 0); } @@ -244,34 +208,23 @@ static void test_xonly_pubkey_tweak_check(void) { int pk_parity; unsigned char tweak[32]; - int ecount; - - set_counting_callbacks(CTX, &ecount); - memset(overflows, 0xff, sizeof(overflows)); secp256k1_testrand256(tweak); secp256k1_testrand256(sk); CHECK(secp256k1_ec_pubkey_create(CTX, &internal_pk, sk) == 1); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &internal_xonly_pk, &pk_parity, &internal_pk) == 1); - ecount = 0; CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, tweak) == 1); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &output_xonly_pk, &pk_parity, &output_pk) == 1); CHECK(secp256k1_xonly_pubkey_serialize(CTX, buf32, &output_xonly_pk) == 1); CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, pk_parity, &internal_xonly_pk, tweak) == 1); - CHECK(ecount == 0); CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, pk_parity, &internal_xonly_pk, tweak) == 1); - CHECK(ecount == 0); CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, pk_parity, &internal_xonly_pk, tweak) == 1); - CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, NULL, pk_parity, &internal_xonly_pk, tweak) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add_check(CTX, NULL, pk_parity, &internal_xonly_pk, tweak)); /* invalid pk_parity value */ CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, 2, &internal_xonly_pk, tweak) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, pk_parity, NULL, tweak) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, pk_parity, &internal_xonly_pk, NULL) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, pk_parity, NULL, tweak)); + CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add_check(CTX, buf32, pk_parity, &internal_xonly_pk, NULL)); memset(tweak, 1, sizeof(tweak)); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &internal_xonly_pk, NULL, &internal_pk) == 1); @@ -290,7 +243,6 @@ static void test_xonly_pubkey_tweak_check(void) { CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, output_pk32, pk_parity, &internal_xonly_pk, overflows) == 0); CHECK(secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, overflows) == 0); CHECK(secp256k1_memcmp_var(&output_pk, zeros64, sizeof(output_pk)) == 0); - CHECK(ecount == 3); } /* Starts with an initial pubkey and recursively creates N_PUBKEYS - 1 @@ -335,33 +287,22 @@ static void test_keypair(void) { secp256k1_pubkey pk, pk_tmp; secp256k1_xonly_pubkey xonly_pk, xonly_pk_tmp; int pk_parity, pk_parity_tmp; - int ecount; - - set_counting_callbacks(CTX, &ecount); - set_counting_callbacks(STATIC_CTX, &ecount); CHECK(sizeof(zeros96) == sizeof(keypair)); memset(overflows, 0xFF, sizeof(overflows)); /* Test keypair_create */ - ecount = 0; secp256k1_testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_memcmp_var(zeros96, &keypair, sizeof(keypair)) != 0); - CHECK(ecount == 0); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_memcmp_var(zeros96, &keypair, sizeof(keypair)) != 0); - CHECK(ecount == 0); - CHECK(secp256k1_keypair_create(CTX, NULL, sk) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_keypair_create(CTX, &keypair, NULL) == 0); + CHECK_ILLEGAL(CTX, secp256k1_keypair_create(CTX, NULL, sk)); + CHECK_ILLEGAL(CTX, secp256k1_keypair_create(CTX, &keypair, NULL)); CHECK(secp256k1_memcmp_var(zeros96, &keypair, sizeof(keypair)) == 0); - CHECK(ecount == 2); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); - CHECK(ecount == 2); - CHECK(secp256k1_keypair_create(STATIC_CTX, &keypair, sk) == 0); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_keypair_create(STATIC_CTX, &keypair, sk)); CHECK(secp256k1_memcmp_var(zeros96, &keypair, sizeof(keypair)) == 0); - CHECK(ecount == 3); /* Invalid secret key */ CHECK(secp256k1_keypair_create(CTX, &keypair, zeros96) == 0); @@ -370,14 +311,11 @@ static void test_keypair(void) { CHECK(secp256k1_memcmp_var(zeros96, &keypair, sizeof(keypair)) == 0); /* Test keypair_pub */ - ecount = 0; secp256k1_testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_pub(CTX, &pk, &keypair) == 1); - CHECK(secp256k1_keypair_pub(CTX, NULL, &keypair) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_keypair_pub(CTX, &pk, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_keypair_pub(CTX, NULL, &keypair)); + CHECK_ILLEGAL(CTX, secp256k1_keypair_pub(CTX, &pk, NULL)); CHECK(secp256k1_memcmp_var(zeros96, &pk, sizeof(pk)) == 0); /* Using an invalid keypair is fine for keypair_pub */ @@ -392,23 +330,19 @@ static void test_keypair(void) { CHECK(secp256k1_memcmp_var(&pk, &pk_tmp, sizeof(pk)) == 0); /** Test keypair_xonly_pub **/ - ecount = 0; secp256k1_testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_xonly_pub(CTX, &xonly_pk, &pk_parity, &keypair) == 1); - CHECK(secp256k1_keypair_xonly_pub(CTX, NULL, &pk_parity, &keypair) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_pub(CTX, NULL, &pk_parity, &keypair)); CHECK(secp256k1_keypair_xonly_pub(CTX, &xonly_pk, NULL, &keypair) == 1); - CHECK(secp256k1_keypair_xonly_pub(CTX, &xonly_pk, &pk_parity, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_pub(CTX, &xonly_pk, &pk_parity, NULL)); CHECK(secp256k1_memcmp_var(zeros96, &xonly_pk, sizeof(xonly_pk)) == 0); /* Using an invalid keypair will set the xonly_pk to 0 (first reset * xonly_pk). */ CHECK(secp256k1_keypair_xonly_pub(CTX, &xonly_pk, &pk_parity, &keypair) == 1); memset(&keypair, 0, sizeof(keypair)); - CHECK(secp256k1_keypair_xonly_pub(CTX, &xonly_pk, &pk_parity, &keypair) == 0); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_pub(CTX, &xonly_pk, &pk_parity, &keypair)); CHECK(secp256k1_memcmp_var(zeros96, &xonly_pk, sizeof(xonly_pk)) == 0); - CHECK(ecount == 3); /** keypair holds the same xonly pubkey as pubkey_create **/ CHECK(secp256k1_ec_pubkey_create(CTX, &pk, sk) == 1); @@ -419,14 +353,11 @@ static void test_keypair(void) { CHECK(pk_parity == pk_parity_tmp); /* Test keypair_seckey */ - ecount = 0; secp256k1_testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_sec(CTX, sk_tmp, &keypair) == 1); - CHECK(secp256k1_keypair_sec(CTX, NULL, &keypair) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_keypair_sec(CTX, sk_tmp, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_keypair_sec(CTX, NULL, &keypair)); + CHECK_ILLEGAL(CTX, secp256k1_keypair_sec(CTX, sk_tmp, NULL)); CHECK(secp256k1_memcmp_var(zeros96, sk_tmp, sizeof(sk_tmp)) == 0); /* keypair returns the same seckey it got */ @@ -439,9 +370,6 @@ static void test_keypair(void) { memset(&keypair, 0, sizeof(keypair)); CHECK(secp256k1_keypair_sec(CTX, sk_tmp, &keypair) == 1); CHECK(secp256k1_memcmp_var(zeros96, sk_tmp, sizeof(sk_tmp)) == 0); - - secp256k1_context_set_error_callback(STATIC_CTX, NULL, NULL); - secp256k1_context_set_illegal_callback(STATIC_CTX, NULL, NULL); } static void test_keypair_add(void) { @@ -451,9 +379,6 @@ static void test_keypair_add(void) { unsigned char zeros96[96] = { 0 }; unsigned char tweak[32]; int i; - int ecount = 0; - - set_counting_callbacks(CTX, &ecount); CHECK(sizeof(zeros96) == sizeof(keypair)); secp256k1_testrand256(sk); @@ -462,14 +387,10 @@ static void test_keypair_add(void) { CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak) == 1); - CHECK(ecount == 0); CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak) == 1); - CHECK(ecount == 0); CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak) == 1); - CHECK(secp256k1_keypair_xonly_tweak_add(CTX, NULL, tweak) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_tweak_add(CTX, NULL, tweak)); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_tweak_add(CTX, &keypair, NULL)); /* This does not set the keypair to zeroes */ CHECK(secp256k1_memcmp_var(&keypair, zeros96, sizeof(keypair)) != 0); @@ -503,20 +424,16 @@ static void test_keypair_add(void) { /* Invalid keypair with a valid tweak */ memset(&keypair, 0, sizeof(keypair)); secp256k1_testrand256(tweak); - ecount = 0; - CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak)); CHECK(secp256k1_memcmp_var(&keypair, zeros96, sizeof(keypair)) == 0); /* Only seckey part of keypair invalid */ CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); memset(&keypair, 0, 32); - CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak)); /* Only pubkey part of keypair invalid */ CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); memset(&keypair.data[32], 0, 64); - CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak)); /* Check that the keypair_tweak_add implementation is correct */ CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); diff --git a/src/modules/recovery/tests_impl.h b/src/modules/recovery/tests_impl.h index 3502c71ffe..728ccfed8d 100644 --- a/src/modules/recovery/tests_impl.h +++ b/src/modules/recovery/tests_impl.h @@ -36,7 +36,6 @@ static void test_ecdsa_recovery_api(void) { secp256k1_ecdsa_recoverable_signature recsig; unsigned char privkey[32] = { 1 }; unsigned char message[32] = { 2 }; - int32_t ecount = 0; int recid = 0; unsigned char sig[74]; unsigned char zero_privkey[32] = { 0 }; @@ -45,86 +44,52 @@ static void test_ecdsa_recovery_api(void) { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; - secp256k1_context_set_error_callback(CTX, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_error_callback(STATIC_CTX, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_illegal_callback(STATIC_CTX, counting_illegal_callback_fn, &ecount); - /* Construct and verify corresponding public key. */ CHECK(secp256k1_ec_seckey_verify(CTX, privkey) == 1); CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey, privkey) == 1); /* Check bad contexts and NULLs for signing */ - ecount = 0; CHECK(secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, privkey, NULL, NULL) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_ecdsa_sign_recoverable(CTX, NULL, message, privkey, NULL, NULL) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ecdsa_sign_recoverable(CTX, &recsig, NULL, privkey, NULL, NULL) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, NULL, NULL, NULL) == 0); - CHECK(ecount == 3); - CHECK(secp256k1_ecdsa_sign_recoverable(STATIC_CTX, &recsig, message, privkey, NULL, NULL) == 0); - CHECK(ecount == 4); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_sign_recoverable(CTX, NULL, message, privkey, NULL, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_sign_recoverable(CTX, &recsig, NULL, privkey, NULL, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, NULL, NULL, NULL)); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_ecdsa_sign_recoverable(STATIC_CTX, &recsig, message, privkey, NULL, NULL)); /* This will fail or succeed randomly, and in either case will not ARG_CHECK failure */ secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, privkey, recovery_test_nonce_function, NULL); - CHECK(ecount == 4); /* These will all fail, but not in ARG_CHECK way */ CHECK(secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, zero_privkey, NULL, NULL) == 0); CHECK(secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, over_privkey, NULL, NULL) == 0); /* This one will succeed. */ CHECK(secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, privkey, NULL, NULL) == 1); - CHECK(ecount == 4); /* Check signing with a goofy nonce function */ /* Check bad contexts and NULLs for recovery */ - ecount = 0; CHECK(secp256k1_ecdsa_recover(CTX, &recpubkey, &recsig, message) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_ecdsa_recover(CTX, NULL, &recsig, message) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ecdsa_recover(CTX, &recpubkey, NULL, message) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_ecdsa_recover(CTX, &recpubkey, &recsig, NULL) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recover(CTX, NULL, &recsig, message)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recover(CTX, &recpubkey, NULL, message)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recover(CTX, &recpubkey, &recsig, NULL)); /* Check NULLs for conversion */ CHECK(secp256k1_ecdsa_sign(CTX, &normal_sig, message, privkey, NULL, NULL) == 1); - ecount = 0; - CHECK(secp256k1_ecdsa_recoverable_signature_convert(CTX, NULL, &recsig) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ecdsa_recoverable_signature_convert(CTX, &normal_sig, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_convert(CTX, NULL, &recsig)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_convert(CTX, &normal_sig, NULL)); CHECK(secp256k1_ecdsa_recoverable_signature_convert(CTX, &normal_sig, &recsig) == 1); /* Check NULLs for de/serialization */ CHECK(secp256k1_ecdsa_sign_recoverable(CTX, &recsig, message, privkey, NULL, NULL) == 1); - ecount = 0; - CHECK(secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, NULL, &recid, &recsig) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, sig, NULL, &recsig) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, sig, &recid, NULL) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, NULL, &recid, &recsig)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, sig, NULL, &recsig)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, sig, &recid, NULL)); CHECK(secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, sig, &recid, &recsig) == 1); - CHECK(secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, NULL, sig, recid) == 0); - CHECK(ecount == 4); - CHECK(secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, NULL, recid) == 0); - CHECK(ecount == 5); - CHECK(secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, sig, -1) == 0); - CHECK(ecount == 6); - CHECK(secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, sig, 5) == 0); - CHECK(ecount == 7); - /* overflow in signature will fail but not affect ecount */ + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, NULL, sig, recid)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, NULL, recid)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, sig, -1)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, sig, 5)); + /* overflow in signature will not result in calling illegal_callback */ memcpy(sig, over_privkey, 32); CHECK(secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, sig, recid) == 0); - CHECK(ecount == 7); - - /* cleanup */ - secp256k1_context_set_error_callback(STATIC_CTX, NULL, NULL); - secp256k1_context_set_illegal_callback(STATIC_CTX, NULL, NULL); } static void test_ecdsa_recovery_end_to_end(void) { diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index 90337ff03e..8ada90a87b 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -116,14 +116,6 @@ static void test_schnorrsig_api(void) { secp256k1_schnorrsig_extraparams extraparams = SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT; secp256k1_schnorrsig_extraparams invalid_extraparams = {{ 0 }, NULL, NULL}; - /** setup **/ - int ecount = 0; - - secp256k1_context_set_error_callback(CTX, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_error_callback(STATIC_CTX, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_illegal_callback(STATIC_CTX, counting_illegal_callback_fn, &ecount); - secp256k1_testrand256(sk1); secp256k1_testrand256(sk2); secp256k1_testrand256(sk3); @@ -137,57 +129,30 @@ static void test_schnorrsig_api(void) { memset(&zero_pk, 0, sizeof(zero_pk)); /** main test body **/ - ecount = 0; CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg, &keypairs[0], NULL) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_schnorrsig_sign32(CTX, NULL, msg, &keypairs[0], NULL) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_schnorrsig_sign32(CTX, sig, NULL, &keypairs[0], NULL) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg, NULL, NULL) == 0); - CHECK(ecount == 3); - CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg, &invalid_keypair, NULL) == 0); - CHECK(ecount == 4); - CHECK(secp256k1_schnorrsig_sign32(STATIC_CTX, sig, msg, &keypairs[0], NULL) == 0); - CHECK(ecount == 5); - - ecount = 0; + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign32(CTX, NULL, msg, &keypairs[0], NULL)); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign32(CTX, sig, NULL, &keypairs[0], NULL)); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign32(CTX, sig, msg, NULL, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign32(CTX, sig, msg, &invalid_keypair, NULL)); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_schnorrsig_sign32(STATIC_CTX, sig, msg, &keypairs[0], NULL)); + CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), &keypairs[0], &extraparams) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_schnorrsig_sign_custom(CTX, NULL, msg, sizeof(msg), &keypairs[0], &extraparams) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, NULL, sizeof(msg), &keypairs[0], &extraparams) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign_custom(CTX, NULL, msg, sizeof(msg), &keypairs[0], &extraparams)); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign_custom(CTX, sig, NULL, sizeof(msg), &keypairs[0], &extraparams)); CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, NULL, 0, &keypairs[0], &extraparams) == 1); - CHECK(ecount == 2); - CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), NULL, &extraparams) == 0); - CHECK(ecount == 3); - CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), &invalid_keypair, &extraparams) == 0); - CHECK(ecount == 4); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), NULL, &extraparams)); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), &invalid_keypair, &extraparams)); CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), &keypairs[0], NULL) == 1); - CHECK(ecount == 4); - CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), &keypairs[0], &invalid_extraparams) == 0); - CHECK(ecount == 5); - CHECK(secp256k1_schnorrsig_sign_custom(STATIC_CTX, sig, msg, sizeof(msg), &keypairs[0], &extraparams) == 0); - CHECK(ecount == 6); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_sign_custom(CTX, sig, msg, sizeof(msg), &keypairs[0], &invalid_extraparams)); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_schnorrsig_sign_custom(STATIC_CTX, sig, msg, sizeof(msg), &keypairs[0], &extraparams)); - ecount = 0; CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg, &keypairs[0], NULL) == 1); CHECK(secp256k1_schnorrsig_verify(CTX, sig, msg, sizeof(msg), &pk[0]) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_schnorrsig_verify(CTX, NULL, msg, sizeof(msg), &pk[0]) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_schnorrsig_verify(CTX, sig, NULL, sizeof(msg), &pk[0]) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_verify(CTX, NULL, msg, sizeof(msg), &pk[0])); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_verify(CTX, sig, NULL, sizeof(msg), &pk[0])); CHECK(secp256k1_schnorrsig_verify(CTX, sig, NULL, 0, &pk[0]) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_schnorrsig_verify(CTX, sig, msg, sizeof(msg), NULL) == 0); - CHECK(ecount == 3); - CHECK(secp256k1_schnorrsig_verify(CTX, sig, msg, sizeof(msg), &zero_pk) == 0); - CHECK(ecount == 4); - - secp256k1_context_set_error_callback(STATIC_CTX, NULL, NULL); - secp256k1_context_set_illegal_callback(STATIC_CTX, NULL, NULL); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_verify(CTX, sig, msg, sizeof(msg), NULL)); + CHECK_ILLEGAL(CTX, secp256k1_schnorrsig_verify(CTX, sig, msg, sizeof(msg), &zero_pk)); } /* Checks that hash initialized by secp256k1_schnorrsig_sha256_tagged has the diff --git a/src/tests.c b/src/tests.c index 67bf654445..1a6a8554e9 100644 --- a/src/tests.c +++ b/src/tests.c @@ -52,7 +52,6 @@ static int all_bytes_equal(const void* s, unsigned char value, size_t n) { return 1; } -/* TODO Use CHECK_ILLEGAL(_VOID) everywhere and get rid of the uncounting callback */ /* CHECK that expr_or_stmt calls the illegal callback of ctx exactly once * * For checking functions that use ARG_CHECK_VOID */ @@ -273,55 +272,34 @@ static void run_deprecated_context_flags_test(void) { } static void run_ec_illegal_argument_tests(void) { - int ecount = 0; - int ecount2 = 10; secp256k1_pubkey pubkey; secp256k1_pubkey zero_pubkey; secp256k1_ecdsa_signature sig; unsigned char ctmp[32]; /* Setup */ - secp256k1_context_set_illegal_callback(STATIC_CTX, counting_illegal_callback_fn, &ecount); - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount2); memset(ctmp, 1, 32); memset(&zero_pubkey, 0, sizeof(zero_pubkey)); /* Verify context-type checking illegal-argument errors. */ - CHECK(secp256k1_ec_pubkey_create(STATIC_CTX, &pubkey, ctmp) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_ec_pubkey_create(STATIC_CTX, &pubkey, ctmp)); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey, ctmp) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(secp256k1_ecdsa_sign(STATIC_CTX, &sig, ctmp, ctmp, NULL, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_ecdsa_sign(STATIC_CTX, &sig, ctmp, ctmp, NULL, NULL)); SECP256K1_CHECKMEM_UNDEFINE(&sig, sizeof(sig)); CHECK(secp256k1_ecdsa_sign(CTX, &sig, ctmp, ctmp, NULL, NULL) == 1); SECP256K1_CHECKMEM_CHECK(&sig, sizeof(sig)); - CHECK(ecount2 == 10); CHECK(secp256k1_ecdsa_verify(CTX, &sig, ctmp, &pubkey) == 1); - CHECK(ecount2 == 10); CHECK(secp256k1_ecdsa_verify(STATIC_CTX, &sig, ctmp, &pubkey) == 1); - CHECK(ecount == 2); CHECK(secp256k1_ec_pubkey_tweak_add(CTX, &pubkey, ctmp) == 1); - CHECK(ecount2 == 10); CHECK(secp256k1_ec_pubkey_tweak_add(STATIC_CTX, &pubkey, ctmp) == 1); - CHECK(ecount == 2); CHECK(secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey, ctmp) == 1); - CHECK(ecount2 == 10); CHECK(secp256k1_ec_pubkey_negate(STATIC_CTX, &pubkey) == 1); - CHECK(ecount == 2); CHECK(secp256k1_ec_pubkey_negate(CTX, &pubkey) == 1); - CHECK(ecount == 2); - CHECK(secp256k1_ec_pubkey_negate(STATIC_CTX, &zero_pubkey) == 0); - CHECK(ecount == 3); - CHECK(secp256k1_ec_pubkey_negate(CTX, NULL) == 0); - CHECK(ecount2 == 11); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_ec_pubkey_negate(STATIC_CTX, &zero_pubkey)); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_negate(CTX, NULL)); CHECK(secp256k1_ec_pubkey_tweak_mul(STATIC_CTX, &pubkey, ctmp) == 1); - CHECK(ecount == 3); - - /* Clean up */ - secp256k1_context_set_illegal_callback(STATIC_CTX, NULL, NULL); - secp256k1_context_set_illegal_callback(CTX, NULL, NULL); } static void run_static_context_tests(int use_prealloc) { @@ -846,7 +824,6 @@ static void run_rfc6979_hmac_sha256_tests(void) { } static void run_tagged_sha256_tests(void) { - int ecount = 0; unsigned char tag[32] = { 0 }; unsigned char msg[32] = { 0 }; unsigned char hash32[32]; @@ -857,16 +834,11 @@ static void run_tagged_sha256_tests(void) { 0xE2, 0x76, 0x55, 0x9A, 0x3B, 0xDE, 0x55, 0xB3 }; - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); - /* API test */ CHECK(secp256k1_tagged_sha256(CTX, hash32, tag, sizeof(tag), msg, sizeof(msg)) == 1); - CHECK(secp256k1_tagged_sha256(CTX, NULL, tag, sizeof(tag), msg, sizeof(msg)) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_tagged_sha256(CTX, hash32, NULL, 0, msg, sizeof(msg)) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_tagged_sha256(CTX, hash32, tag, sizeof(tag), NULL, 0) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_tagged_sha256(CTX, NULL, tag, sizeof(tag), msg, sizeof(msg))); + CHECK_ILLEGAL(CTX, secp256k1_tagged_sha256(CTX, hash32, NULL, 0, msg, sizeof(msg))); + CHECK_ILLEGAL(CTX, secp256k1_tagged_sha256(CTX, hash32, tag, sizeof(tag), NULL, 0)); /* Static test vector */ memcpy(tag, "tag", 3); @@ -5727,9 +5699,7 @@ static void ec_pubkey_parse_pointtest(const unsigned char *input, int xvalid, in secp256k1_pubkey pubkey; secp256k1_ge ge; size_t pubkeyclen; - int32_t ecount; - ecount = 0; - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); + for (pubkeyclen = 3; pubkeyclen <= 65; pubkeyclen++) { /* Smaller sizes are tested exhaustively elsewhere. */ int32_t i; @@ -5754,7 +5724,6 @@ static void ec_pubkey_parse_pointtest(const unsigned char *input, int xvalid, in size_t outl; memset(&pubkey, 0, sizeof(pubkey)); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); - ecount = 0; CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pubkeyc, pubkeyclen) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); outl = 65; @@ -5780,17 +5749,13 @@ static void ec_pubkey_parse_pointtest(const unsigned char *input, int xvalid, in CHECK(pubkeyo[0] == 4); CHECK(secp256k1_memcmp_var(&pubkeyo[1], input, 64) == 0); } - CHECK(ecount == 0); } else { /* These cases must fail to parse. */ memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pubkeyc, pubkeyclen) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); } } } @@ -5977,134 +5942,99 @@ static void run_ec_pubkey_parse_test(void) { 0xB8, 0x00 }; unsigned char sout[65]; - unsigned char shortkey[2]; + unsigned char shortkey[2] = { 0 }; secp256k1_ge ge; secp256k1_pubkey pubkey; size_t len; int32_t i; - int32_t ecount; - ecount = 0; + /* Nothing should be reading this far into pubkeyc. */ SECP256K1_CHECKMEM_UNDEFINE(&pubkeyc[65], 1); - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); /* Zero length claimed, fail, zeroize, no illegal arg error. */ memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; SECP256K1_CHECKMEM_UNDEFINE(shortkey, 2); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, shortkey, 0) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); /* Length one claimed, fail, zeroize, no illegal arg error. */ for (i = 0; i < 256 ; i++) { memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; shortkey[0] = i; SECP256K1_CHECKMEM_UNDEFINE(&shortkey[1], 1); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, shortkey, 1) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); } /* Length two claimed, fail, zeroize, no illegal arg error. */ for (i = 0; i < 65536 ; i++) { memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; shortkey[0] = i & 255; shortkey[1] = i >> 8; SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, shortkey, 2) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); } memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); /* 33 bytes claimed on otherwise valid input starting with 0x04, fail, zeroize output, no illegal arg error. */ CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pubkeyc, 33) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); /* NULL pubkey, illegal arg error. Pubkey isn't rewritten before this step, since it's NULL into the parser. */ - CHECK(secp256k1_ec_pubkey_parse(CTX, NULL, pubkeyc, 65) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_parse(CTX, NULL, pubkeyc, 65)); /* NULL input string. Illegal arg and zeroize output. */ memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); - CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, NULL, 65) == 0); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_parse(CTX, &pubkey, NULL, 65)); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 1); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); /* 64 bytes claimed on input starting with 0x04, fail, zeroize output, no illegal arg error. */ memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pubkeyc, 64) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); /* 66 bytes claimed, fail, zeroize output, no illegal arg error. */ memset(&pubkey, 0xfe, sizeof(pubkey)); - ecount = 0; SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pubkeyc, 66) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); - CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_pubkey_load(CTX, &ge, &pubkey)); /* Valid parse. */ memset(&pubkey, 0, sizeof(pubkey)); - ecount = 0; SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pubkeyc, 65) == 1); CHECK(secp256k1_ec_pubkey_parse(secp256k1_context_static, &pubkey, pubkeyc, 65) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(pubkey)); - CHECK(ecount == 0); SECP256K1_CHECKMEM_UNDEFINE(&ge, sizeof(ge)); CHECK(secp256k1_pubkey_load(CTX, &ge, &pubkey) == 1); SECP256K1_CHECKMEM_CHECK(&ge.x, sizeof(ge.x)); SECP256K1_CHECKMEM_CHECK(&ge.y, sizeof(ge.y)); SECP256K1_CHECKMEM_CHECK(&ge.infinity, sizeof(ge.infinity)); ge_equals_ge(&secp256k1_ge_const_g, &ge); - CHECK(ecount == 0); /* secp256k1_ec_pubkey_serialize illegal args. */ - ecount = 0; len = 65; - CHECK(secp256k1_ec_pubkey_serialize(CTX, NULL, &len, &pubkey, SECP256K1_EC_UNCOMPRESSED) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_serialize(CTX, NULL, &len, &pubkey, SECP256K1_EC_UNCOMPRESSED)); CHECK(len == 0); - CHECK(secp256k1_ec_pubkey_serialize(CTX, sout, NULL, &pubkey, SECP256K1_EC_UNCOMPRESSED) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_serialize(CTX, sout, NULL, &pubkey, SECP256K1_EC_UNCOMPRESSED)); len = 65; SECP256K1_CHECKMEM_UNDEFINE(sout, 65); - CHECK(secp256k1_ec_pubkey_serialize(CTX, sout, &len, NULL, SECP256K1_EC_UNCOMPRESSED) == 0); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_serialize(CTX, sout, &len, NULL, SECP256K1_EC_UNCOMPRESSED)); SECP256K1_CHECKMEM_CHECK(sout, 65); - CHECK(ecount == 3); CHECK(len == 0); len = 65; - CHECK(secp256k1_ec_pubkey_serialize(CTX, sout, &len, &pubkey, ~0) == 0); - CHECK(ecount == 4); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_serialize(CTX, sout, &len, &pubkey, ~0)); CHECK(len == 0); len = 65; SECP256K1_CHECKMEM_UNDEFINE(sout, 65); CHECK(secp256k1_ec_pubkey_serialize(CTX, sout, &len, &pubkey, SECP256K1_EC_UNCOMPRESSED) == 1); SECP256K1_CHECKMEM_CHECK(sout, 65); - CHECK(ecount == 4); CHECK(len == 65); /* Multiple illegal args. Should still set arg error only once. */ - ecount = 0; - CHECK(secp256k1_ec_pubkey_parse(CTX, NULL, NULL, 65) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_parse(CTX, NULL, NULL, 65)); /* Try a bunch of prefabbed points with all possible encodings. */ for (i = 0; i < SECP256K1_EC_PARSE_TEST_NVALID; i++) { ec_pubkey_parse_pointtest(valid[i], 1, 1); @@ -6133,7 +6063,6 @@ static void run_eckey_edge_case_test(void) { secp256k1_pubkey pubkey_negone; const secp256k1_pubkey *pubkeys[3]; size_t len; - int32_t ecount; /* Group order is too large, reject. */ CHECK(secp256k1_ec_seckey_verify(CTX, orderc) == 0); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); @@ -6255,88 +6184,59 @@ static void run_eckey_edge_case_test(void) { ctmp2[31] = 2; CHECK(secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey2, ctmp2) == 1); CHECK(secp256k1_memcmp_var(&pubkey, &pubkey2, sizeof(pubkey)) == 0); - /* Test argument errors. */ - ecount = 0; - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); - CHECK(ecount == 0); /* Zeroize pubkey on parse error. */ memset(&pubkey, 0, 32); - CHECK(secp256k1_ec_pubkey_tweak_add(CTX, &pubkey, ctmp2) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_tweak_add(CTX, &pubkey, ctmp2)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(pubkey)) == 0); memcpy(&pubkey, &pubkey2, sizeof(pubkey)); memset(&pubkey2, 0, 32); - CHECK(secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey2, ctmp2) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey2, ctmp2)); CHECK(secp256k1_memcmp_var(&pubkey2, zeros, sizeof(pubkey2)) == 0); /* Plain argument errors. */ - ecount = 0; CHECK(secp256k1_ec_seckey_verify(CTX, ctmp) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_ec_seckey_verify(CTX, NULL) == 0); - CHECK(ecount == 1); - ecount = 0; + CHECK_ILLEGAL(CTX, secp256k1_ec_seckey_verify(CTX, NULL)); memset(ctmp2, 0, 32); ctmp2[31] = 4; - CHECK(secp256k1_ec_pubkey_tweak_add(CTX, NULL, ctmp2) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ec_pubkey_tweak_add(CTX, &pubkey, NULL) == 0); - CHECK(ecount == 2); - ecount = 0; + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_tweak_add(CTX, NULL, ctmp2)); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_tweak_add(CTX, &pubkey, NULL)); memset(ctmp2, 0, 32); ctmp2[31] = 4; - CHECK(secp256k1_ec_pubkey_tweak_mul(CTX, NULL, ctmp2) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey, NULL) == 0); - CHECK(ecount == 2); - ecount = 0; + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_tweak_mul(CTX, NULL, ctmp2)); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey, NULL)); memset(ctmp2, 0, 32); - CHECK(secp256k1_ec_seckey_tweak_add(CTX, NULL, ctmp2) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ec_seckey_tweak_add(CTX, ctmp, NULL) == 0); - CHECK(ecount == 2); - ecount = 0; + CHECK_ILLEGAL(CTX, secp256k1_ec_seckey_tweak_add(CTX, NULL, ctmp2)); + CHECK_ILLEGAL(CTX, secp256k1_ec_seckey_tweak_add(CTX, ctmp, NULL)); memset(ctmp2, 0, 32); ctmp2[31] = 1; - CHECK(secp256k1_ec_seckey_tweak_mul(CTX, NULL, ctmp2) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ec_seckey_tweak_mul(CTX, ctmp, NULL) == 0); - CHECK(ecount == 2); - ecount = 0; - CHECK(secp256k1_ec_pubkey_create(CTX, NULL, ctmp) == 0); - CHECK(ecount == 1); + CHECK_ILLEGAL(CTX, secp256k1_ec_seckey_tweak_mul(CTX, NULL, ctmp2)); + CHECK_ILLEGAL(CTX, secp256k1_ec_seckey_tweak_mul(CTX, ctmp, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_create(CTX, NULL, ctmp)); memset(&pubkey, 1, sizeof(pubkey)); - CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey, NULL) == 0); - CHECK(ecount == 2); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_create(CTX, &pubkey, NULL)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) == 0); /* secp256k1_ec_pubkey_combine tests. */ - ecount = 0; pubkeys[0] = &pubkey_one; SECP256K1_CHECKMEM_UNDEFINE(&pubkeys[0], sizeof(secp256k1_pubkey *)); SECP256K1_CHECKMEM_UNDEFINE(&pubkeys[1], sizeof(secp256k1_pubkey *)); SECP256K1_CHECKMEM_UNDEFINE(&pubkeys[2], sizeof(secp256k1_pubkey *)); memset(&pubkey, 255, sizeof(secp256k1_pubkey)); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(secp256k1_pubkey)); - CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 0) == 0); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 0)); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ec_pubkey_combine(CTX, NULL, pubkeys, 1) == 0); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_combine(CTX, NULL, pubkeys, 1)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) == 0); - CHECK(ecount == 2); memset(&pubkey, 255, sizeof(secp256k1_pubkey)); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(secp256k1_pubkey)); - CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, NULL, 1) == 0); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_combine(CTX, &pubkey, NULL, 1)); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) == 0); - CHECK(ecount == 3); pubkeys[0] = &pubkey_negone; memset(&pubkey, 255, sizeof(secp256k1_pubkey)); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 1) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) > 0); - CHECK(ecount == 3); len = 33; CHECK(secp256k1_ec_pubkey_serialize(CTX, ctmp, &len, &pubkey, SECP256K1_EC_COMPRESSED) == 1); CHECK(secp256k1_ec_pubkey_serialize(CTX, ctmp2, &len, &pubkey_negone, SECP256K1_EC_COMPRESSED) == 1); @@ -6349,7 +6249,6 @@ static void run_eckey_edge_case_test(void) { CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 2) == 0); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) == 0); - CHECK(ecount == 3); /* Passes through infinity but comes out one. */ pubkeys[2] = &pubkey_one; memset(&pubkey, 255, sizeof(secp256k1_pubkey)); @@ -6357,7 +6256,6 @@ static void run_eckey_edge_case_test(void) { CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 3) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) > 0); - CHECK(ecount == 3); len = 33; CHECK(secp256k1_ec_pubkey_serialize(CTX, ctmp, &len, &pubkey, SECP256K1_EC_COMPRESSED) == 1); CHECK(secp256k1_ec_pubkey_serialize(CTX, ctmp2, &len, &pubkey_one, SECP256K1_EC_COMPRESSED) == 1); @@ -6369,7 +6267,6 @@ static void run_eckey_edge_case_test(void) { CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 2) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) > 0); - CHECK(ecount == 3); secp256k1_context_set_illegal_callback(CTX, NULL, NULL); } @@ -6719,34 +6616,30 @@ static void run_pubkey_comparison(void) { }; secp256k1_pubkey pk1; secp256k1_pubkey pk2; - int32_t ecount = 0; CHECK(secp256k1_ec_pubkey_parse(CTX, &pk1, pk1_ser, sizeof(pk1_ser)) == 1); CHECK(secp256k1_ec_pubkey_parse(CTX, &pk2, pk2_ser, sizeof(pk2_ser)) == 1); - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); - CHECK(secp256k1_ec_pubkey_cmp(CTX, NULL, &pk2) < 0); - CHECK(ecount == 1); - CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk1, NULL) > 0); - CHECK(ecount == 2); + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_ec_pubkey_cmp(CTX, NULL, &pk2) < 0)); + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk1, NULL) > 0)); CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk1, &pk2) < 0); CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk2, &pk1) > 0); CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk1, &pk1) == 0); CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk2, &pk2) == 0); - CHECK(ecount == 2); { secp256k1_pubkey pk_tmp; memset(&pk_tmp, 0, sizeof(pk_tmp)); /* illegal pubkey */ - CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk_tmp, &pk2) < 0); - CHECK(ecount == 3); - CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk_tmp, &pk_tmp) == 0); - CHECK(ecount == 5); - CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk2, &pk_tmp) > 0); - CHECK(ecount == 6); + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk_tmp, &pk2) < 0)); + { + int32_t ecount = 0; + secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); + CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk_tmp, &pk_tmp) == 0); + CHECK(ecount == 2); + secp256k1_context_set_illegal_callback(CTX, NULL, NULL); + } + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk2, &pk_tmp) > 0)); } - secp256k1_context_set_illegal_callback(CTX, NULL, NULL); - /* Make pk2 the same as pk1 but with 3 rather than 2. Note that in * an uncompressed encoding, these would have the opposite ordering */ pk1_ser[0] = 3; @@ -7216,7 +7109,6 @@ static void test_ecdsa_edge_cases(void) { { secp256k1_pubkey pubkey; size_t siglen; - int32_t ecount; unsigned char signature[72]; static const unsigned char nonce[32] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -7242,72 +7134,42 @@ static void test_ecdsa_edge_cases(void) { 0xb8, 0x12, 0xe0, 0x0b, 0x81, 0x7a, 0x77, 0x62, 0x65, 0xdf, 0xdd, 0x31, 0xb9, 0x3e, 0x29, 0xa9, }; - ecount = 0; - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); CHECK(secp256k1_ecdsa_sign(CTX, &sig, msg, key, precomputed_nonce_function, nonce) == 0); CHECK(secp256k1_ecdsa_sign(CTX, &sig, msg, key, precomputed_nonce_function, nonce2) == 0); msg[31] = 0xaa; CHECK(secp256k1_ecdsa_sign(CTX, &sig, msg, key, precomputed_nonce_function, nonce) == 1); - CHECK(ecount == 0); - CHECK(secp256k1_ecdsa_sign(CTX, NULL, msg, key, precomputed_nonce_function, nonce2) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ecdsa_sign(CTX, &sig, NULL, key, precomputed_nonce_function, nonce2) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_ecdsa_sign(CTX, &sig, msg, NULL, precomputed_nonce_function, nonce2) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_sign(CTX, NULL, msg, key, precomputed_nonce_function, nonce2)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_sign(CTX, &sig, NULL, key, precomputed_nonce_function, nonce2)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_sign(CTX, &sig, msg, NULL, precomputed_nonce_function, nonce2)); CHECK(secp256k1_ecdsa_sign(CTX, &sig, msg, key, precomputed_nonce_function, nonce2) == 1); CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey, key) == 1); - CHECK(secp256k1_ecdsa_verify(CTX, NULL, msg, &pubkey) == 0); - CHECK(ecount == 4); - CHECK(secp256k1_ecdsa_verify(CTX, &sig, NULL, &pubkey) == 0); - CHECK(ecount == 5); - CHECK(secp256k1_ecdsa_verify(CTX, &sig, msg, NULL) == 0); - CHECK(ecount == 6); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_verify(CTX, NULL, msg, &pubkey)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_verify(CTX, &sig, NULL, &pubkey)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_verify(CTX, &sig, msg, NULL)); CHECK(secp256k1_ecdsa_verify(CTX, &sig, msg, &pubkey) == 1); - CHECK(ecount == 6); - CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey, NULL) == 0); - CHECK(ecount == 7); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_create(CTX, &pubkey, NULL)); /* That pubkeyload fails via an ARGCHECK is a little odd but makes sense because pubkeys are an opaque data type. */ - CHECK(secp256k1_ecdsa_verify(CTX, &sig, msg, &pubkey) == 0); - CHECK(ecount == 8); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_verify(CTX, &sig, msg, &pubkey)); siglen = 72; - CHECK(secp256k1_ecdsa_signature_serialize_der(CTX, NULL, &siglen, &sig) == 0); - CHECK(ecount == 9); - CHECK(secp256k1_ecdsa_signature_serialize_der(CTX, signature, NULL, &sig) == 0); - CHECK(ecount == 10); - CHECK(secp256k1_ecdsa_signature_serialize_der(CTX, signature, &siglen, NULL) == 0); - CHECK(ecount == 11); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_serialize_der(CTX, NULL, &siglen, &sig)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_serialize_der(CTX, signature, NULL, &sig)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_serialize_der(CTX, signature, &siglen, NULL)); CHECK(secp256k1_ecdsa_signature_serialize_der(CTX, signature, &siglen, &sig) == 1); - CHECK(ecount == 11); - CHECK(secp256k1_ecdsa_signature_parse_der(CTX, NULL, signature, siglen) == 0); - CHECK(ecount == 12); - CHECK(secp256k1_ecdsa_signature_parse_der(CTX, &sig, NULL, siglen) == 0); - CHECK(ecount == 13); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_parse_der(CTX, NULL, signature, siglen)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_parse_der(CTX, &sig, NULL, siglen)); CHECK(secp256k1_ecdsa_signature_parse_der(CTX, &sig, signature, siglen) == 1); - CHECK(ecount == 13); siglen = 10; /* Too little room for a signature does not fail via ARGCHECK. */ CHECK(secp256k1_ecdsa_signature_serialize_der(CTX, signature, &siglen, &sig) == 0); - CHECK(ecount == 13); - ecount = 0; - CHECK(secp256k1_ecdsa_signature_normalize(CTX, NULL, NULL) == 0); - CHECK(ecount == 1); - CHECK(secp256k1_ecdsa_signature_serialize_compact(CTX, NULL, &sig) == 0); - CHECK(ecount == 2); - CHECK(secp256k1_ecdsa_signature_serialize_compact(CTX, signature, NULL) == 0); - CHECK(ecount == 3); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_normalize(CTX, NULL, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_serialize_compact(CTX, NULL, &sig)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_serialize_compact(CTX, signature, NULL)); CHECK(secp256k1_ecdsa_signature_serialize_compact(CTX, signature, &sig) == 1); - CHECK(ecount == 3); - CHECK(secp256k1_ecdsa_signature_parse_compact(CTX, NULL, signature) == 0); - CHECK(ecount == 4); - CHECK(secp256k1_ecdsa_signature_parse_compact(CTX, &sig, NULL) == 0); - CHECK(ecount == 5); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_parse_compact(CTX, NULL, signature)); + CHECK_ILLEGAL(CTX, secp256k1_ecdsa_signature_parse_compact(CTX, &sig, NULL)); CHECK(secp256k1_ecdsa_signature_parse_compact(CTX, &sig, signature) == 1); - CHECK(ecount == 5); memset(signature, 255, 64); CHECK(secp256k1_ecdsa_signature_parse_compact(CTX, &sig, signature) == 0); - CHECK(ecount == 5); - secp256k1_context_set_illegal_callback(CTX, NULL, NULL); } /* Nonce function corner cases. */ From 70303643cf42d18acbf1c020480c6bb23072dbd9 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 31 Jul 2023 13:19:31 +0000 Subject: [PATCH 268/557] tests: add CHECK_ERROR_VOID and use it in scratch tests --- src/modules/extrakeys/tests_impl.h | 2 +- src/tests.c | 67 +++++++++++++----------------- 2 files changed, 31 insertions(+), 38 deletions(-) diff --git a/src/modules/extrakeys/tests_impl.h b/src/modules/extrakeys/tests_impl.h index c9d8506335..45521d1742 100644 --- a/src/modules/extrakeys/tests_impl.h +++ b/src/modules/extrakeys/tests_impl.h @@ -132,7 +132,7 @@ static void test_xonly_pubkey_comparison(void) { CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk2) < 0)); { int32_t ecount = 0; - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); + secp256k1_context_set_illegal_callback(CTX, counting_callback_fn, &ecount); CHECK(secp256k1_xonly_pubkey_cmp(CTX, &pk1, &pk1) == 0); CHECK(ecount == 2); secp256k1_context_set_illegal_callback(CTX, NULL, NULL); diff --git a/src/tests.c b/src/tests.c index 1a6a8554e9..3912921c22 100644 --- a/src/tests.c +++ b/src/tests.c @@ -52,25 +52,32 @@ static int all_bytes_equal(const void* s, unsigned char value, size_t n) { return 1; } -/* CHECK that expr_or_stmt calls the illegal callback of ctx exactly once - * - * For checking functions that use ARG_CHECK_VOID */ -#define CHECK_ILLEGAL_VOID(ctx, expr_or_stmt) do { \ - int32_t _calls_to_illegal_callback = 0; \ - secp256k1_callback _saved_illegal_cb = ctx->illegal_callback; \ - secp256k1_context_set_illegal_callback(ctx, \ - counting_illegal_callback_fn, &_calls_to_illegal_callback); \ +#define CHECK_COUNTING_CALLBACK_VOID(ctx, expr_or_stmt, callback, callback_setter) do { \ + int32_t _calls_to_callback = 0; \ + secp256k1_callback _saved_callback = ctx->callback; \ + callback_setter(ctx, counting_callback_fn, &_calls_to_callback); \ { expr_or_stmt; } \ - ctx->illegal_callback = _saved_illegal_cb; \ - CHECK(_calls_to_illegal_callback == 1); \ + ctx->callback = _saved_callback; \ + CHECK(_calls_to_callback == 1); \ } while(0); -/* CHECK that expr calls the illegal callback of ctx exactly once and that expr == 0 +/* CHECK that expr_or_stmt calls the error or illegal callback of ctx exactly once + * + * Useful for checking functions that return void (e.g., API functions that use ARG_CHECK_VOID) */ +#define CHECK_ERROR_VOID(ctx, expr_or_stmt) \ + CHECK_COUNTING_CALLBACK_VOID(ctx, expr_or_stmt, error_callback, secp256k1_context_set_error_callback) +#define CHECK_ILLEGAL_VOID(ctx, expr_or_stmt) \ + CHECK_COUNTING_CALLBACK_VOID(ctx, expr_or_stmt, illegal_callback, secp256k1_context_set_illegal_callback) + +/* CHECK that + * - expr calls the illegal callback of ctx exactly once and, + * - expr == 0 (or equivalently, expr == NULL) * - * For checking functions that use ARG_CHECK */ + * Useful for checking functions that return an integer or a pointer. */ #define CHECK_ILLEGAL(ctx, expr) CHECK_ILLEGAL_VOID(ctx, CHECK((expr) == 0)) +#define CHECK_ERROR(ctx, expr) CHECK_ERROR_VOID(ctx, CHECK((expr) == 0)) -static void counting_illegal_callback_fn(const char* str, void* data) { +static void counting_callback_fn(const char* str, void* data) { /* Dummy callback function that just counts. */ int32_t *p; (void)str; @@ -334,8 +341,8 @@ static void run_static_context_tests(int use_prealloc) { { /* Verify that setting and resetting illegal callback works */ int32_t dummy = 0; - secp256k1_context_set_illegal_callback(STATIC_CTX, counting_illegal_callback_fn, &dummy); - CHECK(STATIC_CTX->illegal_callback.fn == counting_illegal_callback_fn); + secp256k1_context_set_illegal_callback(STATIC_CTX, counting_callback_fn, &dummy); + CHECK(STATIC_CTX->illegal_callback.fn == counting_callback_fn); CHECK(STATIC_CTX->illegal_callback.data == &dummy); secp256k1_context_set_illegal_callback(STATIC_CTX, NULL, NULL); CHECK(STATIC_CTX->illegal_callback.fn == secp256k1_default_illegal_callback_fn); @@ -426,8 +433,8 @@ static void run_proper_context_tests(int use_prealloc) { CHECK(context_eq(my_ctx, my_ctx_fresh)); /* Verify that setting and resetting illegal callback works */ - secp256k1_context_set_illegal_callback(my_ctx, counting_illegal_callback_fn, &dummy); - CHECK(my_ctx->illegal_callback.fn == counting_illegal_callback_fn); + secp256k1_context_set_illegal_callback(my_ctx, counting_callback_fn, &dummy); + CHECK(my_ctx->illegal_callback.fn == counting_callback_fn); CHECK(my_ctx->illegal_callback.data == &dummy); secp256k1_context_set_illegal_callback(my_ctx, NULL, NULL); CHECK(my_ctx->illegal_callback.fn == secp256k1_default_illegal_callback_fn); @@ -468,18 +475,14 @@ static void run_proper_context_tests(int use_prealloc) { static void run_scratch_tests(void) { const size_t adj_alloc = ((500 + ALIGNMENT - 1) / ALIGNMENT) * ALIGNMENT; - int32_t ecount = 0; size_t checkpoint; size_t checkpoint_2; secp256k1_scratch_space *scratch; secp256k1_scratch_space local_scratch; - secp256k1_context_set_error_callback(CTX, counting_illegal_callback_fn, &ecount); - /* Test public API */ scratch = secp256k1_scratch_space_create(CTX, 1000); CHECK(scratch != NULL); - CHECK(ecount == 0); /* Test internal API */ CHECK(secp256k1_scratch_max_allocation(&CTX->error_callback, scratch, 0) == 1000); @@ -512,22 +515,16 @@ static void run_scratch_tests(void) { /* try to apply a bad checkpoint */ checkpoint_2 = secp256k1_scratch_checkpoint(&CTX->error_callback, scratch); secp256k1_scratch_apply_checkpoint(&CTX->error_callback, scratch, checkpoint); - CHECK(ecount == 0); - secp256k1_scratch_apply_checkpoint(&CTX->error_callback, scratch, checkpoint_2); /* checkpoint_2 is after checkpoint */ - CHECK(ecount == 1); - secp256k1_scratch_apply_checkpoint(&CTX->error_callback, scratch, (size_t) -1); /* this is just wildly invalid */ - CHECK(ecount == 2); + CHECK_ERROR_VOID(CTX, secp256k1_scratch_apply_checkpoint(&CTX->error_callback, scratch, checkpoint_2)); /* checkpoint_2 is after checkpoint */ + CHECK_ERROR_VOID(CTX, secp256k1_scratch_apply_checkpoint(&CTX->error_callback, scratch, (size_t) -1)); /* this is just wildly invalid */ /* try to use badly initialized scratch space */ secp256k1_scratch_space_destroy(CTX, scratch); memset(&local_scratch, 0, sizeof(local_scratch)); scratch = &local_scratch; - CHECK(!secp256k1_scratch_max_allocation(&CTX->error_callback, scratch, 0)); - CHECK(ecount == 3); - CHECK(secp256k1_scratch_alloc(&CTX->error_callback, scratch, 500) == NULL); - CHECK(ecount == 4); - secp256k1_scratch_space_destroy(CTX, scratch); - CHECK(ecount == 5); + CHECK_ERROR(CTX, secp256k1_scratch_max_allocation(&CTX->error_callback, scratch, 0)); + CHECK_ERROR(CTX, secp256k1_scratch_alloc(&CTX->error_callback, scratch, 500)); + CHECK_ERROR_VOID(CTX, secp256k1_scratch_space_destroy(CTX, scratch)); /* Test that large integers do not wrap around in a bad way */ scratch = secp256k1_scratch_space_create(CTX, 1000); @@ -543,8 +540,6 @@ static void run_scratch_tests(void) { /* cleanup */ secp256k1_scratch_space_destroy(CTX, NULL); /* no-op */ - - secp256k1_context_set_error_callback(CTX, NULL, NULL); } static void run_ctz_tests(void) { @@ -5759,7 +5754,6 @@ static void ec_pubkey_parse_pointtest(const unsigned char *input, int xvalid, in } } } - secp256k1_context_set_illegal_callback(CTX, NULL, NULL); } static void run_ec_pubkey_parse_test(void) { @@ -6267,7 +6261,6 @@ static void run_eckey_edge_case_test(void) { CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 2) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) > 0); - secp256k1_context_set_illegal_callback(CTX, NULL, NULL); } static void run_eckey_negate_test(void) { @@ -6632,7 +6625,7 @@ static void run_pubkey_comparison(void) { CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk_tmp, &pk2) < 0)); { int32_t ecount = 0; - secp256k1_context_set_illegal_callback(CTX, counting_illegal_callback_fn, &ecount); + secp256k1_context_set_illegal_callback(CTX, counting_callback_fn, &ecount); CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk_tmp, &pk_tmp) == 0); CHECK(ecount == 2); secp256k1_context_set_illegal_callback(CTX, NULL, NULL); From 9b118bc7fb12203e9bf98eb23bfdd5746adde2b3 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 4 Sep 2023 14:08:21 +0000 Subject: [PATCH 269/557] release cleanup: bump version after 0.4.0 --- CHANGELOG.md | 2 ++ CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index e8d8db5a1e..27ca94a200 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.4.0] - 2023-09-04 #### Added diff --git a/CMakeLists.txt b/CMakeLists.txt index cdac47ba9d..2100d24929 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.4.0 + VERSION 0.4.1 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -35,7 +35,7 @@ endif() # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 3) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) set(${PROJECT_NAME}_LIB_VERSION_AGE 1) set(CMAKE_C_STANDARD 90) diff --git a/configure.ac b/configure.ac index e3877850d3..e82ac75fab 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 4) -define(_PKG_VERSION_PATCH, 0) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 1) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 3) -define(_LIB_VERSION_REVISION, 0) +define(_LIB_VERSION_REVISION, 1) define(_LIB_VERSION_AGE, 1) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 2262d0eaab2aa1181f900acd2d8cd568047599b6 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 28 Aug 2023 15:47:33 +0200 Subject: [PATCH 270/557] ci/cirrus: Bring back skeleton .cirrus.yml without jobs --- .cirrus.yml | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 .cirrus.yml diff --git a/.cirrus.yml b/.cirrus.yml new file mode 100644 index 0000000000..652354c5d6 --- /dev/null +++ b/.cirrus.yml @@ -0,0 +1,50 @@ +env: + ### cirrus config + CIRRUS_CLONE_DEPTH: 1 + ### compiler options + HOST: + WRAPPER_CMD: + # Specific warnings can be disabled with -Wno-error=foo. + # -pedantic-errors is not equivalent to -Werror=pedantic and thus not implied by -Werror according to the GCC manual. + WERROR_CFLAGS: -Werror -pedantic-errors + MAKEFLAGS: -j4 + BUILD: check + ### secp256k1 config + ECMULTWINDOW: auto + ECMULTGENPRECISION: auto + ASM: no + WIDEMUL: auto + WITH_VALGRIND: yes + EXTRAFLAGS: + ### secp256k1 modules + EXPERIMENTAL: no + ECDH: no + RECOVERY: no + SCHNORRSIG: no + ELLSWIFT: no + ### test options + SECP256K1_TEST_ITERS: + BENCH: yes + SECP256K1_BENCH_ITERS: 2 + CTIMETESTS: yes + # Compile and run the tests + EXAMPLES: yes + +cat_logs_snippet: &CAT_LOGS + always: + cat_tests_log_script: + - cat tests.log || true + cat_noverify_tests_log_script: + - cat noverify_tests.log || true + cat_exhaustive_tests_log_script: + - cat exhaustive_tests.log || true + cat_ctime_tests_log_script: + - cat ctime_tests.log || true + cat_bench_log_script: + - cat bench.log || true + cat_config_log_script: + - cat config.log || true + cat_test_env_script: + - cat test_env.log || true + cat_ci_env_script: + - env From 9f005c60d6067d94279a3e3e81ec178bf4e2f227 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 7 Sep 2023 20:47:57 +0100 Subject: [PATCH 271/557] cmake: Install `libsecp256k1.pc` file This change allows downstream projects to use pkg-config to search for the libsecp256k1 library that is built with CMake. --- cmake/GeneratePkgConfigFile.cmake | 8 ++++++++ src/CMakeLists.txt | 10 +++++++++- 2 files changed, 17 insertions(+), 1 deletion(-) create mode 100644 cmake/GeneratePkgConfigFile.cmake diff --git a/cmake/GeneratePkgConfigFile.cmake b/cmake/GeneratePkgConfigFile.cmake new file mode 100644 index 0000000000..9c1d7f1ddd --- /dev/null +++ b/cmake/GeneratePkgConfigFile.cmake @@ -0,0 +1,8 @@ +function(generate_pkg_config_file in_file) + set(prefix ${CMAKE_INSTALL_PREFIX}) + set(exec_prefix \${prefix}) + set(libdir \${exec_prefix}/${CMAKE_INSTALL_LIBDIR}) + set(includedir \${prefix}/${CMAKE_INSTALL_INCLUDEDIR}) + set(PACKAGE_VERSION ${PROJECT_VERSION}) + configure_file(${in_file} ${PROJECT_NAME}.pc @ONLY) +endfunction() diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index b305751b08..4cbaeb914d 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -161,5 +161,13 @@ if(SECP256K1_INSTALL) ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} -) + ) + + include(GeneratePkgConfigFile) + generate_pkg_config_file(${PROJECT_SOURCE_DIR}/libsecp256k1.pc.in) + install( + FILES + ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc + DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig + ) endif() From 421d84855aeb9324b4f131c3e6c7ee8cf4f5f4e5 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 7 Sep 2023 20:58:28 +0100 Subject: [PATCH 272/557] ci: Align Autotools/CMake `CI_INSTALL` directory names --- .github/workflows/ci.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index b9a9eaa82e..1b0007b7f9 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -792,7 +792,7 @@ jobs: - name: Check installation with Autotools env: - CI_INSTALL: ${{ runner.temp }}/${{ github.run_id }}${{ github.action }} + CI_INSTALL: ${{ runner.temp }}/${{ github.run_id }}${{ github.action }}/install run: | ./autogen.sh && ./configure --prefix=${{ env.CI_INSTALL }} && make clean && make install && ls -RlAh ${{ env.CI_INSTALL }} gcc -o ecdsa examples/ecdsa.c $(PKG_CONFIG_PATH=${{ env.CI_INSTALL }}/lib/pkgconfig pkg-config --cflags --libs libsecp256k1) -Wl,-rpath,"${{ env.CI_INSTALL }}/lib" && ./ecdsa From d9d80fd155cd1eb26c1334ceb0d4cecdef640085 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 12 Sep 2023 10:18:39 +0100 Subject: [PATCH 273/557] ci: Bump major versions for docker actions https://github.com/docker/build-push-action/releases/tag/v5.0.0 https://github.com/docker/setup-buildx-action/releases/tag/v3.0.0 --- .github/actions/run-in-docker-action/action.yml | 6 +++--- .github/workflows/ci.yml | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index d357c3cf75..dbfaa4fece 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -14,9 +14,9 @@ inputs: runs: using: "composite" steps: - - uses: docker/setup-buildx-action@v2 + - uses: docker/setup-buildx-action@v3 - - uses: docker/build-push-action@v4 + - uses: docker/build-push-action@v5 id: main_builder continue-on-error: true with: @@ -26,7 +26,7 @@ runs: load: true cache-from: type=gha - - uses: docker/build-push-action@v4 + - uses: docker/build-push-action@v5 id: retry_builder if: steps.main_builder.outcome == 'failure' with: diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index b9a9eaa82e..cd192b5e45 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -47,14 +47,14 @@ jobs: runs-on: ubuntu-latest steps: - name: Set up Docker Buildx - uses: docker/setup-buildx-action@v2 + uses: docker/setup-buildx-action@v3 with: # See: https://github.com/moby/buildkit/issues/3969. driver-opts: | network=host - name: Build container - uses: docker/build-push-action@v4 + uses: docker/build-push-action@v5 with: file: ./ci/linux-debian.Dockerfile tags: linux-debian-image From fa4d6c76b6dc249d02c926ad75725556614fdddd Mon Sep 17 00:00:00 2001 From: MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz> Date: Wed, 20 Sep 2023 17:13:47 +0000 Subject: [PATCH 274/557] ci/cirrus: Add native ARM64 persistent workers Co-authored-by: Tim Ruffing --- .cirrus.yml | 45 ++++++++++++++++++++++++++++++++++++++ ci/linux-debian.Dockerfile | 10 ++++++--- 2 files changed, 52 insertions(+), 3 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 652354c5d6..04aa8f2409 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -48,3 +48,48 @@ cat_logs_snippet: &CAT_LOGS - cat test_env.log || true cat_ci_env_script: - env + +linux_arm64_container_snippet: &LINUX_ARM64_CONTAINER + env_script: + - env | tee /tmp/env + build_script: + - DOCKER_BUILDKIT=1 docker build --file "ci/linux-debian.Dockerfile" --tag="ci_secp256k1_arm" + - docker image prune --force # Cleanup stale layers + test_script: + - docker run --rm --mount "type=bind,src=./,dst=/ci_secp256k1" --env-file /tmp/env --replace --name "ci_secp256k1_arm" "ci_secp256k1_arm" bash -c "cd /ci_secp256k1/ && ./ci/ci.sh" + +task: + name: "ARM64: Linux (Debian stable)" + persistent_worker: + labels: + type: arm64 + env: + ECDH: yes + RECOVERY: yes + SCHNORRSIG: yes + ELLSWIFT: yes + matrix: + # Currently only gcc-snapshot, the other compilers are tested on GHA with QEMU + - env: { CC: 'gcc-snapshot' } + << : *LINUX_ARM64_CONTAINER + << : *CAT_LOGS + +task: + name: "ARM64: Linux (Debian stable), Valgrind" + persistent_worker: + labels: + type: arm64 + env: + ECDH: yes + RECOVERY: yes + SCHNORRSIG: yes + ELLSWIFT: yes + WRAPPER_CMD: 'valgrind --error-exitcode=42' + SECP256K1_TEST_ITERS: 2 + matrix: + - env: { CC: 'gcc' } + - env: { CC: 'clang' } + - env: { CC: 'gcc-snapshot' } + - env: { CC: 'clang-snapshot' } + << : *LINUX_ARM64_CONTAINER + << : *CAT_LOGS diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index e719907e89..5ce715b41b 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -29,11 +29,15 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ gcc-i686-linux-gnu libc6-dev-i386-cross libc6-dbg:i386 libubsan1:i386 libasan8:i386 \ gcc-s390x-linux-gnu libc6-dev-s390x-cross libc6-dbg:s390x \ gcc-arm-linux-gnueabihf libc6-dev-armhf-cross libc6-dbg:armhf \ - gcc-aarch64-linux-gnu libc6-dev-arm64-cross libc6-dbg:arm64 \ gcc-powerpc64le-linux-gnu libc6-dev-ppc64el-cross libc6-dbg:ppc64el \ gcc-mingw-w64-x86-64-win32 wine64 wine \ gcc-mingw-w64-i686-win32 wine32 \ - python3 + python3 && \ + if ! ( dpkg --print-architecture | grep --quiet "arm64" ) ; then \ + apt-get install --no-install-recommends -y \ + gcc-aarch64-linux-gnu libc6-dev-arm64-cross libc6-dbg:arm64 ;\ + fi && \ + apt-get clean && rm -rf /var/lib/apt/lists/* # Build and install gcc snapshot ARG GCC_SNAPSHOT_MAJOR=14 @@ -44,7 +48,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y wget libgmp-dev sha512sum --check --ignore-missing sha512.sum && \ # We should have downloaded exactly one tar.xz file ls && \ - [[ $(ls *.tar.xz | wc -l) -eq "1" ]] && \ + [ $(ls *.tar.xz | wc -l) -eq "1" ] && \ tar xf *.tar.xz && \ mkdir gcc-build && cd gcc-build && \ ../*/configure --prefix=/opt/gcc-snapshot --enable-languages=c --disable-bootstrap --disable-multilib --without-isl && \ From 5dab0baa80d763b1de599e64307c090d1a3fb04d Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 17 Oct 2023 13:10:53 +0000 Subject: [PATCH 275/557] README: remove CI badge We're not solely using cirrus anymore and github already displays the CI status at a different location. --- README.md | 1 - 1 file changed, 1 deletion(-) diff --git a/README.md b/README.md index 19dabe8505..8c32507622 100644 --- a/README.md +++ b/README.md @@ -1,7 +1,6 @@ libsecp256k1 ============ -[![Build Status](https://api.cirrus-ci.com/github/bitcoin-core/secp256k1.svg?branch=master)](https://cirrus-ci.com/github/bitcoin-core/secp256k1) ![Dependencies: None](https://img.shields.io/badge/dependencies-none-success) [![irc.libera.chat #secp256k1](https://img.shields.io/badge/irc.libera.chat-%23secp256k1-success)](https://web.libera.chat/#secp256k1) From 2140da9cd5d490d8462d5c7cc909755edc10c1e6 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 29 Dec 2022 11:48:06 -0500 Subject: [PATCH 276/557] Add secp256k1_scalar_half for halving scalars (+ tests/benchmarks). Co-authored-by: Jonas Nick Co-authored-by: Tim Ruffing --- src/bench_internal.c | 13 +++++++++++ src/scalar.h | 3 +++ src/scalar_4x64_impl.h | 41 +++++++++++++++++++++++++++++++++++ src/scalar_8x32_impl.h | 49 ++++++++++++++++++++++++++++++++++++++++++ src/scalar_low_impl.h | 8 +++++++ src/tests.c | 39 +++++++++++++++++++++++++++++++++ 6 files changed, 153 insertions(+) diff --git a/src/bench_internal.c b/src/bench_internal.c index f3686dd289..adb60beaa2 100644 --- a/src/bench_internal.c +++ b/src/bench_internal.c @@ -98,6 +98,18 @@ static void bench_scalar_negate(void* arg, int iters) { } } +static void bench_scalar_half(void* arg, int iters) { + int i; + bench_inv *data = (bench_inv*)arg; + secp256k1_scalar s = data->scalar[0]; + + for (i = 0; i < iters; i++) { + secp256k1_scalar_half(&s, &s); + } + + data->scalar[0] = s; +} + static void bench_scalar_mul(void* arg, int iters) { int i; bench_inv *data = (bench_inv*)arg; @@ -370,6 +382,7 @@ int main(int argc, char **argv) { int d = argc == 1; /* default */ print_output_table_header_row(); + if (d || have_flag(argc, argv, "scalar") || have_flag(argc, argv, "half")) run_benchmark("scalar_half", bench_scalar_half, bench_setup, NULL, &data, 10, iters*100); if (d || have_flag(argc, argv, "scalar") || have_flag(argc, argv, "add")) run_benchmark("scalar_add", bench_scalar_add, bench_setup, NULL, &data, 10, iters*100); if (d || have_flag(argc, argv, "scalar") || have_flag(argc, argv, "negate")) run_benchmark("scalar_negate", bench_scalar_negate, bench_setup, NULL, &data, 10, iters*100); if (d || have_flag(argc, argv, "scalar") || have_flag(argc, argv, "mul")) run_benchmark("scalar_mul", bench_scalar_mul, bench_setup, NULL, &data, 10, iters*10); diff --git a/src/scalar.h b/src/scalar.h index 4b3c2998bb..a188c1eb06 100644 --- a/src/scalar.h +++ b/src/scalar.h @@ -67,6 +67,9 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc /** Compute the complement of a scalar (modulo the group order). */ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a); +/** Multiply a scalar with the multiplicative inverse of 2. */ +static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a); + /** Check whether a scalar equals zero. */ static int secp256k1_scalar_is_zero(const secp256k1_scalar *a); diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 715cc12ee5..2256bf1d6a 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -199,6 +199,47 @@ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar secp256k1_scalar_verify(r); } +static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a) { + /* Writing `/` for field division and `//` for integer division, we compute + * + * a/2 = (a - (a&1))/2 + (a&1)/2 + * = (a >> 1) + (a&1 ? 1/2 : 0) + * = (a >> 1) + (a&1 ? n//2+1 : 0), + * + * where n is the group order and in the last equality we have used 1/2 = n//2+1 (mod n). + * For n//2, we have the constants SECP256K1_N_H_0, ... + * + * This sum does not overflow. The most extreme case is a = -2, the largest odd scalar. Here: + * - the left summand is: a >> 1 = (a - a&1)/2 = (n-2-1)//2 = (n-3)//2 + * - the right summand is: a&1 ? n//2+1 : 0 = n//2+1 = (n-1)//2 + 2//2 = (n+1)//2 + * Together they sum to (n-3)//2 + (n+1)//2 = (2n-2)//2 = n - 1, which is less than n. + */ + uint64_t mask = -(uint64_t)(a->d[0] & 1U); + secp256k1_uint128 t; + secp256k1_scalar_verify(a); + + secp256k1_u128_from_u64(&t, (a->d[0] >> 1) | (a->d[1] << 63)); + secp256k1_u128_accum_u64(&t, (SECP256K1_N_H_0 + 1U) & mask); + r->d[0] = secp256k1_u128_to_u64(&t); secp256k1_u128_rshift(&t, 64); + secp256k1_u128_accum_u64(&t, (a->d[1] >> 1) | (a->d[2] << 63)); + secp256k1_u128_accum_u64(&t, SECP256K1_N_H_1 & mask); + r->d[1] = secp256k1_u128_to_u64(&t); secp256k1_u128_rshift(&t, 64); + secp256k1_u128_accum_u64(&t, (a->d[2] >> 1) | (a->d[3] << 63)); + secp256k1_u128_accum_u64(&t, SECP256K1_N_H_2 & mask); + r->d[2] = secp256k1_u128_to_u64(&t); secp256k1_u128_rshift(&t, 64); + r->d[3] = secp256k1_u128_to_u64(&t) + (a->d[3] >> 1) + (SECP256K1_N_H_3 & mask); +#ifdef VERIFY + /* The line above only computed the bottom 64 bits of r->d[3]; redo the computation + * in full 128 bits to make sure the top 64 bits are indeed zero. */ + secp256k1_u128_accum_u64(&t, a->d[3] >> 1); + secp256k1_u128_accum_u64(&t, SECP256K1_N_H_3 & mask); + secp256k1_u128_rshift(&t, 64); + VERIFY_CHECK(secp256k1_u128_to_u64(&t) == 0); + + secp256k1_scalar_verify(r); +#endif +} + SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { secp256k1_scalar_verify(a); diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index 5ca1342273..709db70e8f 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -245,6 +245,55 @@ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar secp256k1_scalar_verify(r); } +static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a) { + /* Writing `/` for field division and `//` for integer division, we compute + * + * a/2 = (a - (a&1))/2 + (a&1)/2 + * = (a >> 1) + (a&1 ? 1/2 : 0) + * = (a >> 1) + (a&1 ? n//2+1 : 0), + * + * where n is the group order and in the last equality we have used 1/2 = n//2+1 (mod n). + * For n//2, we have the constants SECP256K1_N_H_0, ... + * + * This sum does not overflow. The most extreme case is a = -2, the largest odd scalar. Here: + * - the left summand is: a >> 1 = (a - a&1)/2 = (n-2-1)//2 = (n-3)//2 + * - the right summand is: a&1 ? n//2+1 : 0 = n//2+1 = (n-1)//2 + 2//2 = (n+1)//2 + * Together they sum to (n-3)//2 + (n+1)//2 = (2n-2)//2 = n - 1, which is less than n. + */ + uint32_t mask = -(uint32_t)(a->d[0] & 1U); + uint64_t t = (uint32_t)((a->d[0] >> 1) | (a->d[1] << 31)); + secp256k1_scalar_verify(a); + + t += (SECP256K1_N_H_0 + 1U) & mask; + r->d[0] = t; t >>= 32; + t += (uint32_t)((a->d[1] >> 1) | (a->d[2] << 31)); + t += SECP256K1_N_H_1 & mask; + r->d[1] = t; t >>= 32; + t += (uint32_t)((a->d[2] >> 1) | (a->d[3] << 31)); + t += SECP256K1_N_H_2 & mask; + r->d[2] = t; t >>= 32; + t += (uint32_t)((a->d[3] >> 1) | (a->d[4] << 31)); + t += SECP256K1_N_H_3 & mask; + r->d[3] = t; t >>= 32; + t += (uint32_t)((a->d[4] >> 1) | (a->d[5] << 31)); + t += SECP256K1_N_H_4 & mask; + r->d[4] = t; t >>= 32; + t += (uint32_t)((a->d[5] >> 1) | (a->d[6] << 31)); + t += SECP256K1_N_H_5 & mask; + r->d[5] = t; t >>= 32; + t += (uint32_t)((a->d[6] >> 1) | (a->d[7] << 31)); + t += SECP256K1_N_H_6 & mask; + r->d[6] = t; t >>= 32; + r->d[7] = (uint32_t)t + (uint32_t)(a->d[7] >> 1) + (SECP256K1_N_H_7 & mask); +#ifdef VERIFY + /* The line above only computed the bottom 32 bits of r->d[7]. Redo the computation + * in full 64 bits to make sure the top 32 bits are indeed zero. */ + VERIFY_CHECK((t + (a->d[7] >> 1) + (SECP256K1_N_H_7 & mask)) >> 32 == 0); + + secp256k1_scalar_verify(r); +#endif +} + SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { secp256k1_scalar_verify(a); diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index e2356a5be1..1ee3bf9919 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -205,4 +205,12 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc secp256k1_scalar_verify(r); } +static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a) { + secp256k1_scalar_verify(a); + + *r = (*a + ((-(uint32_t)(*a & 1)) & EXHAUSTIVE_TEST_ORDER)) >> 1; + + secp256k1_scalar_verify(r); +} + #endif /* SECP256K1_SCALAR_REPR_IMPL_H */ diff --git a/src/tests.c b/src/tests.c index e32ec875f4..d8b3cd3bdd 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2285,6 +2285,13 @@ static void scalar_test(void) { CHECK(secp256k1_scalar_eq(&r1, &secp256k1_scalar_zero)); } + { + /* Test halving. */ + secp256k1_scalar r; + secp256k1_scalar_add(&r, &s, &s); + secp256k1_scalar_half(&r, &r); + CHECK(secp256k1_scalar_eq(&r, &s)); + } } static void run_scalar_set_b32_seckey_tests(void) { @@ -2337,6 +2344,38 @@ static void run_scalar_tests(void) { CHECK(secp256k1_scalar_is_zero(&o)); } + { + /* Test that halving and doubling roundtrips on some fixed values. */ + static const secp256k1_scalar HALF_TESTS[] = { + /* 0 */ + SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0), + /* 1 */ + SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 1), + /* -1 */ + SECP256K1_SCALAR_CONST(0xfffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffeul, 0xbaaedce6ul, 0xaf48a03bul, 0xbfd25e8cul, 0xd0364140ul), + /* -2 (largest odd value) */ + SECP256K1_SCALAR_CONST(0xfffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffeul, 0xbaaedce6ul, 0xaf48a03bul, 0xbfd25e8cul, 0xd036413Ful), + /* Half the secp256k1 order */ + SECP256K1_SCALAR_CONST(0x7ffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffful, 0x5d576e73ul, 0x57a4501dul, 0xdfe92f46ul, 0x681b20a0ul), + /* Half the secp256k1 order + 1 */ + SECP256K1_SCALAR_CONST(0x7ffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffful, 0x5d576e73ul, 0x57a4501dul, 0xdfe92f46ul, 0x681b20a1ul), + /* 2^255 */ + SECP256K1_SCALAR_CONST(0x80000000ul, 0, 0, 0, 0, 0, 0, 0), + /* 2^255 - 1 */ + SECP256K1_SCALAR_CONST(0x7ffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffful, 0xfffffffful), + }; + unsigned n; + for (n = 0; n < sizeof(HALF_TESTS) / sizeof(HALF_TESTS[0]); ++n) { + secp256k1_scalar s; + secp256k1_scalar_half(&s, &HALF_TESTS[n]); + secp256k1_scalar_add(&s, &s, &s); + CHECK(secp256k1_scalar_eq(&s, &HALF_TESTS[n])); + secp256k1_scalar_add(&s, &s, &s); + secp256k1_scalar_half(&s, &s); + CHECK(secp256k1_scalar_eq(&s, &HALF_TESTS[n])); + } + } + { /* Does check_overflow check catch all ones? */ static const secp256k1_scalar overflowed = SECP256K1_SCALAR_CONST( From ba523be067d6e45957d154838cb9da942704f01a Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 30 Dec 2022 12:13:46 -0500 Subject: [PATCH 277/557] make SECP256K1_SCALAR_CONST reduce modulo exhaustive group order --- src/scalar_low.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/src/scalar_low.h b/src/scalar_low.h index 67051bd30b..2711eb932d 100644 --- a/src/scalar_low.h +++ b/src/scalar_low.h @@ -1,5 +1,5 @@ /*********************************************************************** - * Copyright (c) 2015 Andrew Poelstra * + * Copyright (c) 2015, 2022 Andrew Poelstra, Pieter Wuille * * Distributed under the MIT software license, see the accompanying * * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ @@ -12,6 +12,13 @@ /** A scalar modulo the group order of the secp256k1 curve. */ typedef uint32_t secp256k1_scalar; -#define SECP256K1_SCALAR_CONST(d7, d6, d5, d4, d3, d2, d1, d0) (d0) +/* A compile-time constant equal to 2^32 (modulo order). */ +#define SCALAR_2P32 ((0xffffffffUL % EXHAUSTIVE_TEST_ORDER) + 1U) + +/* Compute a*2^32 + b (modulo order). */ +#define SCALAR_HORNER(a, b) (((uint64_t)(a) * SCALAR_2P32 + (b)) % EXHAUSTIVE_TEST_ORDER) + +/* Evaluates to the provided 256-bit constant reduced modulo order. */ +#define SECP256K1_SCALAR_CONST(d7, d6, d5, d4, d3, d2, d1, d0) SCALAR_HORNER(SCALAR_HORNER(SCALAR_HORNER(SCALAR_HORNER(SCALAR_HORNER(SCALAR_HORNER(SCALAR_HORNER((d7), (d6)), (d5)), (d4)), (d3)), (d2)), (d1)), (d0)) #endif /* SECP256K1_SCALAR_REPR_H */ From 4d16e90111c050de3b7e25ac451d87cd4e3f874e Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 30 Dec 2022 14:43:37 -0500 Subject: [PATCH 278/557] Signed-digit based ecmult_const algorithm --- src/ecmult_const_impl.h | 302 ++++++++++++++++++++++++++++------------ src/scalar.h | 2 +- 2 files changed, 217 insertions(+), 87 deletions(-) diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index 06f9e53ffd..f166628ca8 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -1,5 +1,5 @@ /*********************************************************************** - * Copyright (c) 2015 Pieter Wuille, Andrew Poelstra * + * Copyright (c) 2015, 2022 Pieter Wuille, Andrew Poelstra * * Distributed under the MIT software license, see the accompanying * * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ @@ -12,45 +12,96 @@ #include "ecmult_const.h" #include "ecmult_impl.h" +#if defined(EXHAUSTIVE_TEST_ORDER) +/* We need 2^ECMULT_CONST_GROUP_SIZE - 1 to be less than EXHAUSTIVE_TEST_ORDER, because + * the tables cannot have infinities in them (this breaks the effective-affine technique's + * z-ratio tracking) */ +# if EXHAUSTIVE_TEST_ORDER == 199 +# define ECMULT_CONST_GROUP_SIZE 4 +# elif EXHAUSTIVE_TEST_ORDER == 13 +# define ECMULT_CONST_GROUP_SIZE 3 +# elif EXHAUSTIVE_TEST_ORDER == 7 +# define ECMULT_CONST_GROUP_SIZE 2 +# else +# error "Unknown EXHAUSTIVE_TEST_ORDER" +# endif +#else +/* Group size 4 or 5 appears optimal. */ +# define ECMULT_CONST_GROUP_SIZE 5 +#endif + +#define ECMULT_CONST_TABLE_SIZE (1L << (ECMULT_CONST_GROUP_SIZE - 1)) +#define ECMULT_CONST_GROUPS ((129 + ECMULT_CONST_GROUP_SIZE - 1) / ECMULT_CONST_GROUP_SIZE) +#define ECMULT_CONST_BITS (ECMULT_CONST_GROUPS * ECMULT_CONST_GROUP_SIZE) + /** Fill a table 'pre' with precomputed odd multiples of a. * * The resulting point set is brought to a single constant Z denominator, stores the X and Y - * coordinates as ge_storage points in pre, and stores the global Z in globalz. - * It only operates on tables sized for WINDOW_A wnaf multiples. + * coordinates as ge points in pre, and stores the global Z in globalz. + * + * 'pre' must be an array of size ECMULT_CONST_TABLE_SIZE. */ -static void secp256k1_ecmult_odd_multiples_table_globalz_windowa(secp256k1_ge *pre, secp256k1_fe *globalz, const secp256k1_gej *a) { - secp256k1_fe zr[ECMULT_TABLE_SIZE(WINDOW_A)]; +static void secp256k1_ecmult_const_odd_multiples_table_globalz(secp256k1_ge *pre, secp256k1_fe *globalz, const secp256k1_gej *a) { + secp256k1_fe zr[ECMULT_CONST_TABLE_SIZE]; - secp256k1_ecmult_odd_multiples_table(ECMULT_TABLE_SIZE(WINDOW_A), pre, zr, globalz, a); - secp256k1_ge_table_set_globalz(ECMULT_TABLE_SIZE(WINDOW_A), pre, zr); + secp256k1_ecmult_odd_multiples_table(ECMULT_CONST_TABLE_SIZE, pre, zr, globalz, a); + secp256k1_ge_table_set_globalz(ECMULT_CONST_TABLE_SIZE, pre, zr); } -/* This is like `ECMULT_TABLE_GET_GE` but is constant time */ -#define ECMULT_CONST_TABLE_GET_GE(r,pre,n,w) do { \ - int m = 0; \ - /* Extract the sign-bit for a constant time absolute-value. */ \ - int volatile mask = (n) >> (sizeof(n) * CHAR_BIT - 1); \ - int abs_n = ((n) + mask) ^ mask; \ - int idx_n = abs_n >> 1; \ +/* Given a table 'pre' with odd multiples of a point, put in r the signed-bit multiplication of n with that point. + * + * For example, if ECMULT_CONST_GROUP_SIZE is 4, then pre is expected to contain 8 entries: + * [1*P, 3*P, 5*P, 7*P, 9*P, 11*P, 13*P, 15*P]. n is then expected to be a 4-bit integer (range 0-15), and its + * bits are interpreted as signs of powers of two to look up. + * + * For example, if n=4, which is 0100 in binary, which is interpreted as [- + - -], so the looked up value is + * [ -(2^3) + (2^2) - (2^1) - (2^0) ]*P = -7*P. Every valid n translates to an odd number in range [-15,15], + * which means we just need to look up one of the precomputed values, and optionally negate it. + */ +#define ECMULT_CONST_TABLE_GET_GE(r,pre,n) do { \ + unsigned int m = 0; \ + /* If the top bit of n is 0, we want the negation. */ \ + volatile unsigned int negative = ((n) >> (ECMULT_CONST_GROUP_SIZE - 1)) ^ 1; \ + /* Let n[i] be the i-th bit of n, then the index is + * sum(cnot(n[i]) * 2^i, i=0..l-2) + * where cnot(b) = b if n[l-1] = 1 and 1 - b otherwise. + * For example, if n = 4, in binary 0100, the index is 3, in binary 011. + * + * Proof: + * Let + * x = sum((2*n[i] - 1)*2^i, i=0..l-1) + * = 2*sum(n[i] * 2^i, i=0..l-1) - 2^l + 1 + * be the value represented by n. + * The index is (x - 1)/2 if x > 0 and -(x + 1)/2 otherwise. + * Case x > 0: + * n[l-1] = 1 + * index = sum(n[i] * 2^i, i=0..l-1) - 2^(l-1) + * = sum(n[i] * 2^i, i=0..l-2) + * Case x <= 0: + * n[l-1] = 0 + * index = -(2*sum(n[i] * 2^i, i=0..l-1) - 2^l + 2)/2 + * = 2^(l-1) - 1 - sum(n[i] * 2^i, i=0..l-1) + * = sum((1 - n[i]) * 2^i, i=0..l-2) + */ \ + unsigned int index = ((unsigned int)(-negative) ^ n) & ((1U << (ECMULT_CONST_GROUP_SIZE - 1)) - 1U); \ secp256k1_fe neg_y; \ - VERIFY_CHECK(((n) & 1) == 1); \ - VERIFY_CHECK((n) >= -((1 << ((w)-1)) - 1)); \ - VERIFY_CHECK((n) <= ((1 << ((w)-1)) - 1)); \ + VERIFY_CHECK((n) < (1U << ECMULT_CONST_GROUP_SIZE)); \ + VERIFY_CHECK(index < (1U << (ECMULT_CONST_GROUP_SIZE - 1))); \ VERIFY_SETUP(secp256k1_fe_clear(&(r)->x)); \ VERIFY_SETUP(secp256k1_fe_clear(&(r)->y)); \ - /* Unconditionally set r->x = (pre)[m].x. r->y = (pre)[m].y. because it's either the correct one \ + /* Unconditionally set r->x = (pre)[m].x. r->y = (pre)[m].y. because it's either the correct one * or will get replaced in the later iterations, this is needed to make sure `r` is initialized. */ \ (r)->x = (pre)[m].x; \ (r)->y = (pre)[m].y; \ - for (m = 1; m < ECMULT_TABLE_SIZE(w); m++) { \ + for (m = 1; m < ECMULT_CONST_TABLE_SIZE; m++) { \ /* This loop is used to avoid secret data in array indices. See * the comment in ecmult_gen_impl.h for rationale. */ \ - secp256k1_fe_cmov(&(r)->x, &(pre)[m].x, m == idx_n); \ - secp256k1_fe_cmov(&(r)->y, &(pre)[m].y, m == idx_n); \ + secp256k1_fe_cmov(&(r)->x, &(pre)[m].x, m == index); \ + secp256k1_fe_cmov(&(r)->y, &(pre)[m].y, m == index); \ } \ (r)->infinity = 0; \ secp256k1_fe_negate(&neg_y, &(r)->y, 1); \ - secp256k1_fe_cmov(&(r)->y, &neg_y, (n) != abs_n); \ + secp256k1_fe_cmov(&(r)->y, &neg_y, negative); \ } while(0) /** Convert a number to WNAF notation. @@ -130,90 +181,169 @@ static int secp256k1_wnaf_const(int *wnaf, const secp256k1_scalar *scalar, int w return skew; } -static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *scalar) { - secp256k1_ge pre_a[ECMULT_TABLE_SIZE(WINDOW_A)]; - secp256k1_ge tmpa; - secp256k1_fe Z; - - int skew_1; - secp256k1_ge pre_a_lam[ECMULT_TABLE_SIZE(WINDOW_A)]; - int wnaf_lam[1 + WNAF_SIZE(WINDOW_A - 1)]; - int skew_lam; - secp256k1_scalar q_1, q_lam; - int wnaf_1[1 + WNAF_SIZE(WINDOW_A - 1)]; +/* For K as defined in the comment of secp256k1_ecmult_const, we have several precomputed + * formulas/constants. + * - in exhaustive test mode, we give an explicit expression to compute it at compile time: */ +#ifdef EXHAUSTIVE_TEST_ORDER +static const secp256k1_scalar secp256k1_ecmult_const_K = ((SECP256K1_SCALAR_CONST(0, 0, 0, (1U << (ECMULT_CONST_BITS - 128)) - 2U, 0, 0, 0, 0) + EXHAUSTIVE_TEST_ORDER - 1U) * (1U + EXHAUSTIVE_TEST_LAMBDA)) % EXHAUSTIVE_TEST_ORDER; +/* - for the real secp256k1 group we have constants for various ECMULT_CONST_BITS values. */ +#elif ECMULT_CONST_BITS == 129 +/* For GROUP_SIZE = 1,3. */ +static const secp256k1_scalar secp256k1_ecmult_const_K = SECP256K1_SCALAR_CONST(0xac9c52b3ul, 0x3fa3cf1ful, 0x5ad9e3fdul, 0x77ed9ba4ul, 0xa880b9fcul, 0x8ec739c2ul, 0xe0cfc810ul, 0xb51283ceul); +#elif ECMULT_CONST_BITS == 130 +/* For GROUP_SIZE = 2,5. */ +static const secp256k1_scalar secp256k1_ecmult_const_K = SECP256K1_SCALAR_CONST(0xa4e88a7dul, 0xcb13034eul, 0xc2bdd6bful, 0x7c118d6bul, 0x589ae848ul, 0x26ba29e4ul, 0xb5c2c1dcul, 0xde9798d9ul); +#elif ECMULT_CONST_BITS == 132 +/* For GROUP_SIZE = 4,6 */ +static const secp256k1_scalar secp256k1_ecmult_const_K = SECP256K1_SCALAR_CONST(0x76b1d93dul, 0x0fae3c6bul, 0x3215874bul, 0x94e93813ul, 0x7937fe0dul, 0xb66bcaaful, 0xb3749ca5ul, 0xd7b6171bul); +#else +# error "Unknown ECMULT_CONST_BITS" +#endif - int i; +static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q) { + /* The approach below combines the signed-digit logic from Mike Hamburg's + * "Fast and compact elliptic-curve cryptography" (https://eprint.iacr.org/2012/309) + * Section 3.3, with the GLV endomorphism. + * + * The idea there is to interpret the bits of a scalar as signs (1 = +, 0 = -), and compute a + * point multiplication in that fashion. Let v be an n-bit non-negative integer (0 <= v < 2^n), + * and v[i] its i'th bit (so v = sum(v[i] * 2^i, i=0..n-1)). Then define: + * + * C_l(v, A) = sum((2*v[i] - 1) * 2^i*A, i=0..l-1) + * + * Then it holds that C_l(v, A) = sum((2*v[i] - 1) * 2^i*A, i=0..l-1) + * = (2*sum(v[i] * 2^i, i=0..l-1) + 1 - 2^l) * A + * = (2*v + 1 - 2^l) * A + * + * Thus, one can compute q*A as C_256((q + 2^256 - 1) / 2, A). This is the basis for the + * paper's signed-digit multi-comb algorithm for multiplication using a precomputed table. + * + * It is appealing to try to combine this with the GLV optimization: the idea that a scalar + * s can be written as s1 + lambda*s2, where lambda is a curve-specific constant such that + * lambda*A is easy to compute, and where s1 and s2 are small. In particular we have the + * secp256k1_scalar_split_lambda function which performs such a split with the resulting s1 + * and s2 in range (-2^128, 2^128) mod n. This does work, but is uninteresting: + * + * To compute q*A: + * - Let s1, s2 = split_lambda(q) + * - Let R1 = C_256((s1 + 2^256 - 1) / 2, A) + * - Let R2 = C_256((s2 + 2^256 - 1) / 2, lambda*A) + * - Return R1 + R2 + * + * The issue is that while s1 and s2 are small-range numbers, (s1 + 2^256 - 1) / 2 (mod n) + * and (s2 + 2^256 - 1) / 2 (mod n) are not, undoing the benefit of the splitting. + * + * To make it work, we want to modify the input scalar q first, before splitting, and then only + * add a 2^128 offset of the split results (so that they end up in the single 129-bit range + * [0,2^129]). A slightly smaller offset would work due to the bounds on the split, but we pick + * 2^128 for simplicity. Let s be the scalar fed to split_lambda, and f(q) the function to + * compute it from q: + * + * To compute q*A: + * - Compute s = f(q) + * - Let s1, s2 = split_lambda(s) + * - Let v1 = s1 + 2^128 (mod n) + * - Let v2 = s2 + 2^128 (mod n) + * - Let R1 = C_l(v1, A) + * - Let R2 = C_l(v2, lambda*A) + * - Return R1 + R2 + * + * l will thus need to be at least 129, but we may overshoot by a few bits (see + * further), so keep it as a variable. + * + * To solve for s, we reason: + * q*A = R1 + R2 + * <=> q*A = C_l(s1 + 2^128, A) + C_l(s2 + 2^128, lambda*A) + * <=> q*A = (2*(s1 + 2^128) + 1 - 2^l) * A + (2*(s2 + 2^128) + 1 - 2^l) * lambda*A + * <=> q*A = (2*(s1 + s2*lambda) + (2^129 + 1 - 2^l) * (1 + lambda)) * A + * <=> q = 2*(s1 + s2*lambda) + (2^129 + 1 - 2^l) * (1 + lambda) (mod n) + * <=> q = 2*s + (2^129 + 1 - 2^l) * (1 + lambda) (mod n) + * <=> s = (q + (2^l - 2^129 - 1) * (1 + lambda)) / 2 (mod n) + * <=> f(q) = (q + K) / 2 (mod n) + * where K = (2^l - 2^129 - 1)*(1 + lambda) (mod n) + * + * We will process the computation of C_l(v1, A) and C_l(v2, lambda*A) in groups of + * ECMULT_CONST_GROUP_SIZE, so we set l to the smallest multiple of ECMULT_CONST_GROUP_SIZE + * that is not less than 129; this equals ECMULT_CONST_BITS. + */ + /* The offset to add to s1 and s2 to make them non-negative. Equal to 2^128. */ + static const secp256k1_scalar S_OFFSET = SECP256K1_SCALAR_CONST(0, 0, 0, 1, 0, 0, 0, 0); + secp256k1_scalar s, v1, v2; + secp256k1_ge pre_a[ECMULT_CONST_TABLE_SIZE]; + secp256k1_ge pre_a_lam[ECMULT_CONST_TABLE_SIZE]; + secp256k1_fe global_z; + int group, i; + + /* We're allowed to be non-constant time in the point, and the code below (in particular, + * secp256k1_ecmult_const_odd_multiples_table_globalz) cannot deal with infinity in a + * constant-time manner anyway. */ if (secp256k1_ge_is_infinity(a)) { secp256k1_gej_set_infinity(r); return; } - /* build wnaf representation for q. */ - /* split q into q_1 and q_lam (where q = q_1 + q_lam*lambda, and q_1 and q_lam are ~128 bit) */ - secp256k1_scalar_split_lambda(&q_1, &q_lam, scalar); - skew_1 = secp256k1_wnaf_const(wnaf_1, &q_1, WINDOW_A - 1, 128); - skew_lam = secp256k1_wnaf_const(wnaf_lam, &q_lam, WINDOW_A - 1, 128); + /* Compute v1 and v2. */ + secp256k1_scalar_add(&s, q, &secp256k1_ecmult_const_K); + secp256k1_scalar_half(&s, &s); + secp256k1_scalar_split_lambda(&v1, &v2, &s); + secp256k1_scalar_add(&v1, &v1, &S_OFFSET); + secp256k1_scalar_add(&v2, &v2, &S_OFFSET); - /* Calculate odd multiples of a. +#ifdef VERIFY + /* Verify that v1 and v2 are in range [0, 2^129-1]. */ + for (i = 129; i < 256; ++i) { + VERIFY_CHECK(secp256k1_scalar_get_bits(&v1, i, 1) == 0); + VERIFY_CHECK(secp256k1_scalar_get_bits(&v2, i, 1) == 0); + } +#endif + + /* Calculate odd multiples of A and A*lambda. * All multiples are brought to the same Z 'denominator', which is stored - * in Z. Due to secp256k1' isomorphism we can do all operations pretending + * in global_z. Due to secp256k1' isomorphism we can do all operations pretending * that the Z coordinate was 1, use affine addition formulae, and correct * the Z coordinate of the result once at the end. */ - VERIFY_CHECK(!a->infinity); secp256k1_gej_set_ge(r, a); - secp256k1_ecmult_odd_multiples_table_globalz_windowa(pre_a, &Z, r); - for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) { - secp256k1_fe_normalize_weak(&pre_a[i].y); - } - for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) { + secp256k1_ecmult_const_odd_multiples_table_globalz(pre_a, &global_z, r); + for (i = 0; i < ECMULT_CONST_TABLE_SIZE; i++) { secp256k1_ge_mul_lambda(&pre_a_lam[i], &pre_a[i]); } - /* first loop iteration (separated out so we can directly set r, rather - * than having it start at infinity, get doubled several times, then have - * its new value added to it) */ - i = wnaf_1[WNAF_SIZE_BITS(128, WINDOW_A - 1)]; - VERIFY_CHECK(i != 0); - ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a, i, WINDOW_A); - secp256k1_gej_set_ge(r, &tmpa); - i = wnaf_lam[WNAF_SIZE_BITS(128, WINDOW_A - 1)]; - VERIFY_CHECK(i != 0); - ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, i, WINDOW_A); - secp256k1_gej_add_ge(r, r, &tmpa); - /* remaining loop iterations */ - for (i = WNAF_SIZE_BITS(128, WINDOW_A - 1) - 1; i >= 0; i--) { - int n; + /* Next, we compute r = C_l(v1, A) + C_l(v2, lambda*A). + * + * We proceed in groups of ECMULT_CONST_GROUP_SIZE bits, operating on that many bits + * at a time, from high in v1, v2 to low. Call these bits1 (from v1) and bits2 (from v2). + * + * Now note that ECMULT_CONST_TABLE_GET_GE(&t, pre_a, bits1) loads into t a point equal + * to C_{ECMULT_CONST_GROUP_SIZE}(bits1, A), and analogously for pre_lam_a / bits2. + * This means that all we need to do is add these looked up values together, multiplied + * by 2^(ECMULT_GROUP_SIZE * group). + */ + for (group = ECMULT_CONST_GROUPS - 1; group >= 0; --group) { + /* Using the _var get_bits function is ok here, since it's only variable in offset and count, not in the scalar. */ + unsigned int bits1 = secp256k1_scalar_get_bits_var(&v1, group * ECMULT_CONST_GROUP_SIZE, ECMULT_CONST_GROUP_SIZE); + unsigned int bits2 = secp256k1_scalar_get_bits_var(&v2, group * ECMULT_CONST_GROUP_SIZE, ECMULT_CONST_GROUP_SIZE); + secp256k1_ge t; int j; - for (j = 0; j < WINDOW_A - 1; ++j) { - secp256k1_gej_double(r, r); - } - n = wnaf_1[i]; - ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a, n, WINDOW_A); - VERIFY_CHECK(n != 0); - secp256k1_gej_add_ge(r, r, &tmpa); - n = wnaf_lam[i]; - ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, n, WINDOW_A); - VERIFY_CHECK(n != 0); - secp256k1_gej_add_ge(r, r, &tmpa); - } - - { - /* Correct for wNAF skew */ - secp256k1_gej tmpj; - - secp256k1_ge_neg(&tmpa, &pre_a[0]); - secp256k1_gej_add_ge(&tmpj, r, &tmpa); - secp256k1_gej_cmov(r, &tmpj, skew_1); - - secp256k1_ge_neg(&tmpa, &pre_a_lam[0]); - secp256k1_gej_add_ge(&tmpj, r, &tmpa); - secp256k1_gej_cmov(r, &tmpj, skew_lam); + ECMULT_CONST_TABLE_GET_GE(&t, pre_a, bits1); + if (group == ECMULT_CONST_GROUPS - 1) { + /* Directly set r in the first iteration. */ + secp256k1_gej_set_ge(r, &t); + } else { + /* Shift the result so far up. */ + for (j = 0; j < ECMULT_CONST_GROUP_SIZE; ++j) { + secp256k1_gej_double(r, r); + } + secp256k1_gej_add_ge(r, r, &t); + } + ECMULT_CONST_TABLE_GET_GE(&t, pre_a_lam, bits2); + secp256k1_gej_add_ge(r, r, &t); } - secp256k1_fe_mul(&r->z, &r->z, &Z); + /* Map the result back to the secp256k1 curve from the isomorphic curve. */ + secp256k1_fe_mul(&r->z, &r->z, &global_z); } static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, const secp256k1_fe *d, const secp256k1_scalar *q, int known_on_curve) { diff --git a/src/scalar.h b/src/scalar.h index a188c1eb06..ed67b6fdd1 100644 --- a/src/scalar.h +++ b/src/scalar.h @@ -25,7 +25,7 @@ static void secp256k1_scalar_clear(secp256k1_scalar *r); /** Access bits from a scalar. All requested bits must belong to the same 32-bit limb. */ static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count); -/** Access bits from a scalar. Not constant time. */ +/** Access bits from a scalar. Not constant time in offset and count. */ static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count); /** Set a scalar from a big endian byte array. The scalar will be reduced modulo group order `n`. From aa9f3a3c004469033709dc8138892e66adf0b030 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 20 Jun 2023 16:16:30 -0400 Subject: [PATCH 279/557] ecmult_const: add/improve tests * add test case for a=infinity The corresponding ecmult_const branch was not tested before this commit. * add test for edge cases --- src/tests.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 53 insertions(+), 3 deletions(-) diff --git a/src/tests.c b/src/tests.c index d8b3cd3bdd..aa7940f1ff 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4463,25 +4463,74 @@ static void ecmult_const_commutativity(void) { } static void ecmult_const_mult_zero_one(void) { + secp256k1_scalar s; secp256k1_scalar negone; secp256k1_gej res1; secp256k1_ge res2; secp256k1_ge point; - secp256k1_scalar_negate(&negone, &secp256k1_scalar_one); + secp256k1_ge inf; + random_scalar_order_test(&s); + secp256k1_scalar_negate(&negone, &secp256k1_scalar_one); random_group_element_test(&point); + secp256k1_ge_set_infinity(&inf); + + /* 0*point */ secp256k1_ecmult_const(&res1, &point, &secp256k1_scalar_zero); - secp256k1_ge_set_gej(&res2, &res1); - CHECK(secp256k1_ge_is_infinity(&res2)); + CHECK(secp256k1_gej_is_infinity(&res1)); + + /* s*inf */ + secp256k1_ecmult_const(&res1, &inf, &s); + CHECK(secp256k1_gej_is_infinity(&res1)); + + /* 1*point */ secp256k1_ecmult_const(&res1, &point, &secp256k1_scalar_one); secp256k1_ge_set_gej(&res2, &res1); ge_equals_ge(&res2, &point); + + /* -1*point */ secp256k1_ecmult_const(&res1, &point, &negone); secp256k1_gej_neg(&res1, &res1); secp256k1_ge_set_gej(&res2, &res1); ge_equals_ge(&res2, &point); } +static void ecmult_const_check_result(const secp256k1_ge *A, const secp256k1_scalar* q, const secp256k1_gej *res) { + secp256k1_gej pointj, res2j; + secp256k1_ge res2; + secp256k1_gej_set_ge(&pointj, A); + secp256k1_ecmult(&res2j, &pointj, q, &secp256k1_scalar_zero); + secp256k1_ge_set_gej(&res2, &res2j); + ge_equals_gej(&res2, res); +} + +static void ecmult_const_edges(void) { + secp256k1_scalar q; + secp256k1_ge point; + secp256k1_gej res; + size_t i; + size_t cases = 1 + sizeof(scalars_near_split_bounds) / sizeof(scalars_near_split_bounds[0]); + + /* We are trying to reach the following edge cases (variables are defined as + * in ecmult_const_impl.h): + * 1. i = 0: s = 0 <=> q = -K + * 2. i > 0: v1, v2 large values + * <=> s1, s2 large values + * <=> s = scalars_near_split_bounds[i] + * <=> q = 2*scalars_near_split_bounds[i] - K + */ + for (i = 0; i < cases; ++i) { + secp256k1_scalar_negate(&q, &secp256k1_ecmult_const_K); + if (i > 0) { + secp256k1_scalar_add(&q, &q, &scalars_near_split_bounds[i - 1]); + secp256k1_scalar_add(&q, &q, &scalars_near_split_bounds[i - 1]); + } + random_group_element_test(&point); + secp256k1_ecmult_const(&res, &point, &q); + ecmult_const_check_result(&point, &q, &res); + } +} + static void ecmult_const_mult_xonly(void) { int i; @@ -4565,6 +4614,7 @@ static void ecmult_const_chain_multiply(void) { static void run_ecmult_const_tests(void) { ecmult_const_mult_zero_one(); + ecmult_const_edges(); ecmult_const_random_mult(); ecmult_const_commutativity(); ecmult_const_chain_multiply(); From 115fdc7232a80872c99f88589a5a3608ba757f1d Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 30 Dec 2022 14:44:14 -0500 Subject: [PATCH 280/557] Remove unused secp256k1_wnaf_const --- src/bench_internal.c | 14 ------- src/ecmult_const_impl.h | 77 ------------------------------------- src/tests.c | 84 +---------------------------------------- 3 files changed, 1 insertion(+), 174 deletions(-) diff --git a/src/bench_internal.c b/src/bench_internal.c index adb60beaa2..71f452ddc4 100644 --- a/src/bench_internal.c +++ b/src/bench_internal.c @@ -14,7 +14,6 @@ #include "field_impl.h" #include "group_impl.h" #include "scalar_impl.h" -#include "ecmult_const_impl.h" #include "ecmult_impl.h" #include "bench.h" @@ -321,18 +320,6 @@ static void bench_ecmult_wnaf(void* arg, int iters) { CHECK(bits <= 256*iters); } -static void bench_wnaf_const(void* arg, int iters) { - int i, bits = 0, overflow = 0; - bench_inv *data = (bench_inv*)arg; - - for (i = 0; i < iters; i++) { - bits += secp256k1_wnaf_const(data->wnaf, &data->scalar[0], WINDOW_A, 256); - overflow += secp256k1_scalar_add(&data->scalar[0], &data->scalar[0], &data->scalar[1]); - } - CHECK(overflow >= 0); - CHECK(bits <= 256*iters); -} - static void bench_sha256(void* arg, int iters) { int i; bench_inv *data = (bench_inv*)arg; @@ -407,7 +394,6 @@ int main(int argc, char **argv) { if (d || have_flag(argc, argv, "group") || have_flag(argc, argv, "add")) run_benchmark("group_add_zinv_var", bench_group_add_zinv_var, bench_setup, NULL, &data, 10, iters*10); if (d || have_flag(argc, argv, "group") || have_flag(argc, argv, "to_affine")) run_benchmark("group_to_affine_var", bench_group_to_affine_var, bench_setup, NULL, &data, 10, iters); - if (d || have_flag(argc, argv, "ecmult") || have_flag(argc, argv, "wnaf")) run_benchmark("wnaf_const", bench_wnaf_const, bench_setup, NULL, &data, 10, iters); if (d || have_flag(argc, argv, "ecmult") || have_flag(argc, argv, "wnaf")) run_benchmark("ecmult_wnaf", bench_ecmult_wnaf, bench_setup, NULL, &data, 10, iters); if (d || have_flag(argc, argv, "hash") || have_flag(argc, argv, "sha256")) run_benchmark("hash_sha256", bench_sha256, bench_setup, NULL, &data, 10, iters); diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index f166628ca8..7fd7eadc7b 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -104,83 +104,6 @@ static void secp256k1_ecmult_const_odd_multiples_table_globalz(secp256k1_ge *pre secp256k1_fe_cmov(&(r)->y, &neg_y, negative); \ } while(0) -/** Convert a number to WNAF notation. - * The number becomes represented by sum(2^{wi} * wnaf[i], i=0..WNAF_SIZE(w)+1) - return_val. - * It has the following guarantees: - * - each wnaf[i] an odd integer between -(1 << w) and (1 << w) - * - each wnaf[i] is nonzero - * - the number of words set is always WNAF_SIZE(w) + 1 - * - * Adapted from `The Width-w NAF Method Provides Small Memory and Fast Elliptic Scalar - * Multiplications Secure against Side Channel Attacks`, Okeya and Tagaki. M. Joye (Ed.) - * CT-RSA 2003, LNCS 2612, pp. 328-443, 2003. Springer-Verlag Berlin Heidelberg 2003 - * - * Numbers reference steps of `Algorithm SPA-resistant Width-w NAF with Odd Scalar` on pp. 335 - */ -static int secp256k1_wnaf_const(int *wnaf, const secp256k1_scalar *scalar, int w, int size) { - int global_sign; - int skew; - int word = 0; - - /* 1 2 3 */ - int u_last; - int u; - - int flip; - secp256k1_scalar s = *scalar; - - VERIFY_CHECK(w > 0); - VERIFY_CHECK(size > 0); - - /* Note that we cannot handle even numbers by negating them to be odd, as is - * done in other implementations, since if our scalars were specified to have - * width < 256 for performance reasons, their negations would have width 256 - * and we'd lose any performance benefit. Instead, we use a variation of a - * technique from Section 4.2 of the Okeya/Tagaki paper, which is to add 1 to the - * number we are encoding when it is even, returning a skew value indicating - * this, and having the caller compensate after doing the multiplication. - * - * In fact, we _do_ want to negate numbers to minimize their bit-lengths (and in - * particular, to ensure that the outputs from the endomorphism-split fit into - * 128 bits). If we negate, the parity of our number flips, affecting whether - * we want to add to the scalar to ensure that it's odd. */ - flip = secp256k1_scalar_is_high(&s); - skew = flip ^ secp256k1_scalar_is_even(&s); - secp256k1_scalar_cadd_bit(&s, 0, skew); - global_sign = secp256k1_scalar_cond_negate(&s, flip); - - /* 4 */ - u_last = secp256k1_scalar_shr_int(&s, w); - do { - int even; - - /* 4.1 4.4 */ - u = secp256k1_scalar_shr_int(&s, w); - /* 4.2 */ - even = ((u & 1) == 0); - /* In contrast to the original algorithm, u_last is always > 0 and - * therefore we do not need to check its sign. In particular, it's easy - * to see that u_last is never < 0 because u is never < 0. Moreover, - * u_last is never = 0 because u is never even after a loop - * iteration. The same holds analogously for the initial value of - * u_last (in the first loop iteration). */ - VERIFY_CHECK(u_last > 0); - VERIFY_CHECK((u_last & 1) == 1); - u += even; - u_last -= even * (1 << w); - - /* 4.3, adapted for global sign change */ - wnaf[word++] = u_last * global_sign; - - u_last = u; - } while (word * w < size); - wnaf[word] = u * global_sign; - - VERIFY_CHECK(secp256k1_scalar_is_zero(&s)); - VERIFY_CHECK(word == WNAF_SIZE_BITS(size, w)); - return skew; -} - /* For K as defined in the comment of secp256k1_ecmult_const, we have several precomputed * formulas/constants. * - in exhaustive test mode, we give an explicit expression to compute it at compile time: */ diff --git a/src/tests.c b/src/tests.c index aa7940f1ff..0589514ea5 100644 --- a/src/tests.c +++ b/src/tests.c @@ -5275,61 +5275,6 @@ static void test_wnaf(const secp256k1_scalar *number, int w) { CHECK(secp256k1_scalar_eq(&x, number)); /* check that wnaf represents number */ } -static void test_constant_wnaf_negate(const secp256k1_scalar *number) { - secp256k1_scalar neg1 = *number; - secp256k1_scalar neg2 = *number; - int sign1 = 1; - int sign2 = 1; - - if (!secp256k1_scalar_get_bits(&neg1, 0, 1)) { - secp256k1_scalar_negate(&neg1, &neg1); - sign1 = -1; - } - sign2 = secp256k1_scalar_cond_negate(&neg2, secp256k1_scalar_is_even(&neg2)); - CHECK(sign1 == sign2); - CHECK(secp256k1_scalar_eq(&neg1, &neg2)); -} - -static void test_constant_wnaf(const secp256k1_scalar *number, int w) { - secp256k1_scalar x, shift; - int wnaf[256] = {0}; - int i; - int skew; - int bits = 256; - secp256k1_scalar num = *number; - secp256k1_scalar scalar_skew; - - secp256k1_scalar_set_int(&x, 0); - secp256k1_scalar_set_int(&shift, 1 << w); - for (i = 0; i < 16; ++i) { - secp256k1_scalar_shr_int(&num, 8); - } - bits = 128; - skew = secp256k1_wnaf_const(wnaf, &num, w, bits); - - for (i = WNAF_SIZE_BITS(bits, w); i >= 0; --i) { - secp256k1_scalar t; - int v = wnaf[i]; - CHECK(v != 0); /* check nonzero */ - CHECK(v & 1); /* check parity */ - CHECK(v > -(1 << w)); /* check range above */ - CHECK(v < (1 << w)); /* check range below */ - - secp256k1_scalar_mul(&x, &x, &shift); - if (v >= 0) { - secp256k1_scalar_set_int(&t, v); - } else { - secp256k1_scalar_set_int(&t, -v); - secp256k1_scalar_negate(&t, &t); - } - secp256k1_scalar_add(&x, &x, &t); - } - /* Skew num because when encoding numbers as odd we use an offset */ - secp256k1_scalar_set_int(&scalar_skew, skew); - secp256k1_scalar_add(&num, &num, &scalar_skew); - CHECK(secp256k1_scalar_eq(&x, &num)); -} - static void test_fixed_wnaf(const secp256k1_scalar *number, int w) { secp256k1_scalar x, shift; int wnaf[256] = {0}; @@ -5433,32 +5378,7 @@ static void test_fixed_wnaf_small(void) { static void run_wnaf(void) { int i; - secp256k1_scalar n = {{0}}; - - test_constant_wnaf(&n, 4); - /* Sanity check: 1 and 2 are the smallest odd and even numbers and should - * have easier-to-diagnose failure modes */ - n.d[0] = 1; - test_constant_wnaf(&n, 4); - n.d[0] = 2; - test_constant_wnaf(&n, 4); - /* Test -1, because it's a special case in wnaf_const */ - n = secp256k1_scalar_one; - secp256k1_scalar_negate(&n, &n); - test_constant_wnaf(&n, 4); - - /* Test -2, which may not lead to overflows in wnaf_const */ - secp256k1_scalar_add(&n, &secp256k1_scalar_one, &secp256k1_scalar_one); - secp256k1_scalar_negate(&n, &n); - test_constant_wnaf(&n, 4); - - /* Test (1/2) - 1 = 1/-2 and 1/2 = (1/-2) + 1 - as corner cases of negation handling in wnaf_const */ - secp256k1_scalar_inverse(&n, &n); - test_constant_wnaf(&n, 4); - - secp256k1_scalar_add(&n, &n, &secp256k1_scalar_one); - test_constant_wnaf(&n, 4); + secp256k1_scalar n; /* Test 0 for fixed wnaf */ test_fixed_wnaf_small(); @@ -5466,8 +5386,6 @@ static void run_wnaf(void) { for (i = 0; i < COUNT; i++) { random_scalar_order(&n); test_wnaf(&n, 4+(i%10)); - test_constant_wnaf_negate(&n); - test_constant_wnaf(&n, 4 + (i % 10)); test_fixed_wnaf(&n, 4 + (i % 10)); } secp256k1_scalar_set_int(&n, 0); From 21f49d9bec518a769029f809817444a984e735ab Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 30 Dec 2022 14:17:42 -0500 Subject: [PATCH 281/557] Remove unused secp256k1_scalar_shr_int --- src/scalar.h | 4 ---- src/scalar_4x64_impl.h | 16 ---------------- src/scalar_8x32_impl.h | 20 -------------------- src/scalar_low_impl.h | 13 ------------- src/tests.c | 21 +++------------------ 5 files changed, 3 insertions(+), 71 deletions(-) diff --git a/src/scalar.h b/src/scalar.h index ed67b6fdd1..00a390bc5b 100644 --- a/src/scalar.h +++ b/src/scalar.h @@ -54,10 +54,6 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int /** Multiply two scalars (modulo the group order). */ static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b); -/** Shift a scalar right by some amount strictly between 0 and 16, returning - * the low bits that were shifted off */ -static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n); - /** Compute the inverse of a scalar (modulo the group order). */ static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar *a); diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 2256bf1d6a..b3cc7523f7 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -850,22 +850,6 @@ static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, secp256k1_scalar_verify(r); } -static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n) { - int ret; - secp256k1_scalar_verify(r); - VERIFY_CHECK(n > 0); - VERIFY_CHECK(n < 16); - - ret = r->d[0] & ((1 << n) - 1); - r->d[0] = (r->d[0] >> n) + (r->d[1] << (64 - n)); - r->d[1] = (r->d[1] >> n) + (r->d[2] << (64 - n)); - r->d[2] = (r->d[2] >> n) + (r->d[3] << (64 - n)); - r->d[3] = (r->d[3] >> n); - - secp256k1_scalar_verify(r); - return ret; -} - static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) { secp256k1_scalar_verify(k); diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index 709db70e8f..fed2e77b69 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -662,26 +662,6 @@ static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, secp256k1_scalar_verify(r); } -static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n) { - int ret; - secp256k1_scalar_verify(r); - VERIFY_CHECK(n > 0); - VERIFY_CHECK(n < 16); - - ret = r->d[0] & ((1 << n) - 1); - r->d[0] = (r->d[0] >> n) + (r->d[1] << (32 - n)); - r->d[1] = (r->d[1] >> n) + (r->d[2] << (32 - n)); - r->d[2] = (r->d[2] >> n) + (r->d[3] << (32 - n)); - r->d[3] = (r->d[3] >> n) + (r->d[4] << (32 - n)); - r->d[4] = (r->d[4] >> n) + (r->d[5] << (32 - n)); - r->d[5] = (r->d[5] >> n) + (r->d[6] << (32 - n)); - r->d[6] = (r->d[6] >> n) + (r->d[7] << (32 - n)); - r->d[7] = (r->d[7] >> n); - - secp256k1_scalar_verify(r); - return ret; -} - static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) { secp256k1_scalar_verify(k); diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 1ee3bf9919..1929b175e0 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -139,19 +139,6 @@ static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, secp256k1_scalar_verify(r); } -static int secp256k1_scalar_shr_int(secp256k1_scalar *r, int n) { - int ret; - secp256k1_scalar_verify(r); - VERIFY_CHECK(n > 0); - VERIFY_CHECK(n < 16); - - ret = *r & ((1 << n) - 1); - *r >>= n; - - secp256k1_scalar_verify(r); - return ret; -} - static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *a) { secp256k1_scalar_verify(a); diff --git a/src/tests.c b/src/tests.c index 0589514ea5..fbaafe5d3a 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2180,20 +2180,6 @@ static void scalar_test(void) { CHECK(secp256k1_scalar_eq(&n, &s)); } - { - /* test secp256k1_scalar_shr_int */ - secp256k1_scalar r; - int i; - random_scalar_order_test(&r); - for (i = 0; i < 100; ++i) { - int low; - int shift = 1 + secp256k1_testrand_int(15); - int expected = r.d[0] % (1ULL << shift); - low = secp256k1_scalar_shr_int(&r, shift); - CHECK(expected == low); - } - } - { /* Test commutativity of add. */ secp256k1_scalar r1, r2; @@ -5280,13 +5266,12 @@ static void test_fixed_wnaf(const secp256k1_scalar *number, int w) { int wnaf[256] = {0}; int i; int skew; - secp256k1_scalar num = *number; + secp256k1_scalar num, unused; secp256k1_scalar_set_int(&x, 0); secp256k1_scalar_set_int(&shift, 1 << w); - for (i = 0; i < 16; ++i) { - secp256k1_scalar_shr_int(&num, 8); - } + /* Make num a 128-bit scalar. */ + secp256k1_scalar_split_128(&num, &unused, number); skew = secp256k1_wnaf_fixed(wnaf, &num, w); for (i = WNAF_SIZE(w)-1; i >= 0; --i) { From 355bbdf38a2f932daadd02325a0d90d902cb2af4 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 30 Dec 2022 15:31:39 -0500 Subject: [PATCH 282/557] Add changelog entry for signed-digit ecmult_const algorithm --- CHANGELOG.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 27ca94a200..e1ccc5bb2b 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Changed + - The point multiplication algorithm used for ECDH operations (module `ecdh`) was replaced with a slightly faster one. + ## [0.4.0] - 2023-09-04 #### Added From 8e2a5fe908faa2ad0b847b3e5c42662614c8fa88 Mon Sep 17 00:00:00 2001 From: roconnor-blockstream Date: Mon, 6 Nov 2023 17:40:17 -0500 Subject: [PATCH 283/557] correct assertion for secp256k1_fe_mul_inner Based on the surrounding asserts, 112 bits before this line, and 61 bits after this line, this assertion should be 113 bits. Notably the commensurate line in secp256k1_fe_sqr_inner is correctly assert to be 113 bits. --- src/field_5x52_int128_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/field_5x52_int128_impl.h b/src/field_5x52_int128_impl.h index b2a391dec9..f7de0fd12d 100644 --- a/src/field_5x52_int128_impl.h +++ b/src/field_5x52_int128_impl.h @@ -100,7 +100,7 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t VERIFY_BITS(u0, 56); /* [d 0 t4+(u0<<48) t3 0 0 c] = [p8 0 0 p5 p4 p3 0 0 p0] */ secp256k1_u128_accum_mul(&c, u0, R >> 4); - VERIFY_BITS_128(&c, 115); + VERIFY_BITS_128(&c, 113); /* [d 0 t4 t3 0 0 c] = [p8 0 0 p5 p4 p3 0 0 p0] */ r[0] = secp256k1_u128_to_u64(&c) & M; secp256k1_u128_rshift(&c, 52); VERIFY_BITS(r[0], 52); From 8185e72d299bc77de9c06cc92fd1988676df3bc1 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 7 Nov 2023 12:05:57 +0000 Subject: [PATCH 284/557] ci: Ignore internal errors in snapshot compilers --- ci/ci.sh | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/ci/ci.sh b/ci/ci.sh index 719e7851ef..9cc715955e 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -83,7 +83,21 @@ esac --host="$HOST" $EXTRAFLAGS # We have set "-j" in MAKEFLAGS. -make +build_exit_code=0 +make > make.log 2>&1 || build_exit_code=$? +cat make.log +if [ $build_exit_code -ne 0 ]; then + case "${CC:-undefined}" in + *snapshot*) + # Ignore internal compiler errors in gcc-snapshot and clang-snapshot + grep -e "internal compiler error:" -e "PLEASE submit a bug report" make.log + return $?; + ;; + *) + return 1; + ;; + esac +fi # Print information about binaries so that we can see that the architecture is correct file *tests* || true From 33dc7e4d3e1947af4c84c09ecc75ea2eeed3f7e0 Mon Sep 17 00:00:00 2001 From: fanquake Date: Mon, 13 Nov 2023 14:49:35 +0000 Subject: [PATCH 285/557] asm: add .note.GNU-stack section for non-exec stack With this in place, we no-longer see warnings like the following: ```bash /usr/lib/gcc-cross/arm-linux-gnueabihf/12/../../../../arm-linux-gnueabihf/bin/ld: warning: field_10x26_arm.o: missing .note.GNU-stack section implies executable stack /usr/lib/gcc-cross/arm-linux-gnueabihf/12/../../../../arm-linux-gnueabihf/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker ``` Should close #1434. --- src/asm/field_10x26_arm.s | 1 + 1 file changed, 1 insertion(+) diff --git a/src/asm/field_10x26_arm.s b/src/asm/field_10x26_arm.s index 42cbf879ef..664b921400 100644 --- a/src/asm/field_10x26_arm.s +++ b/src/asm/field_10x26_arm.s @@ -913,3 +913,4 @@ secp256k1_fe_sqr_inner: ldmfd sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc} .size secp256k1_fe_sqr_inner, .-secp256k1_fe_sqr_inner + .section .note.GNU-stack,"",%progbits From 10271356c8fc34395850ac70df5902571945fbea Mon Sep 17 00:00:00 2001 From: roconnor-blockstream Date: Tue, 14 Nov 2023 09:29:21 -0500 Subject: [PATCH 286/557] Return temporaries to being unsigned in secp256k1_fe_sqr_inner These temporaries seem to been inadvertently changed to signed during a refactoring. Generally, bit shifting is frowned upon for signed values. --- src/field_5x52_int128_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/field_5x52_int128_impl.h b/src/field_5x52_int128_impl.h index b2a391dec9..9f8dadbddb 100644 --- a/src/field_5x52_int128_impl.h +++ b/src/field_5x52_int128_impl.h @@ -159,7 +159,7 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t SECP256K1_INLINE static void secp256k1_fe_sqr_inner(uint64_t *r, const uint64_t *a) { secp256k1_uint128 c, d; uint64_t a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4]; - int64_t t3, t4, tx, u0; + uint64_t t3, t4, tx, u0; const uint64_t M = 0xFFFFFFFFFFFFFULL, R = 0x1000003D10ULL; VERIFY_BITS(a[0], 56); From dcdda31f2cda13839a4285d8601118c041b18c13 Mon Sep 17 00:00:00 2001 From: Russell O'Connor Date: Tue, 14 Nov 2023 12:07:00 -0500 Subject: [PATCH 287/557] Tighten secp256k1_fe_mul_inner's VERIFY_BITS checks These changes bring the checks to the same values used at the corresponding positions in secp256k1_fe_sqr_inner. --- src/field_5x52_int128_impl.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/field_5x52_int128_impl.h b/src/field_5x52_int128_impl.h index f7de0fd12d..96d86e5fb0 100644 --- a/src/field_5x52_int128_impl.h +++ b/src/field_5x52_int128_impl.h @@ -89,11 +89,11 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t secp256k1_u128_accum_mul(&d, a2, b[3]); secp256k1_u128_accum_mul(&d, a3, b[2]); secp256k1_u128_accum_mul(&d, a4, b[1]); - VERIFY_BITS_128(&d, 115); + VERIFY_BITS_128(&d, 114); /* [d t4+(tx<<48) t3 0 0 c] = [p8 0 0 p5 p4 p3 0 0 p0] */ u0 = secp256k1_u128_to_u64(&d) & M; secp256k1_u128_rshift(&d, 52); VERIFY_BITS(u0, 52); - VERIFY_BITS_128(&d, 63); + VERIFY_BITS_128(&d, 62); /* [d u0 t4+(tx<<48) t3 0 0 c] = [p8 0 0 p5 p4 p3 0 0 p0] */ /* [d 0 t4+(tx<<48)+(u0<<52) t3 0 0 c] = [p8 0 0 p5 p4 p3 0 0 p0] */ u0 = (u0 << 4) | tx; From 1ddd76af0a735b7fcbec7f37c0d99a7db9893ac1 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 23 Nov 2023 17:47:53 +0100 Subject: [PATCH 288/557] bench: add --help option to bench_internal --- src/bench_internal.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/src/bench_internal.c b/src/bench_internal.c index 71f452ddc4..a700684922 100644 --- a/src/bench_internal.c +++ b/src/bench_internal.c @@ -17,6 +17,25 @@ #include "ecmult_impl.h" #include "bench.h" +static void help(int default_iters) { + printf("Benchmarks various internal routines.\n"); + printf("\n"); + printf("The default number of iterations for each benchmark is %d. This can be\n", default_iters); + printf("customized using the SECP256K1_BENCH_ITERS environment variable.\n"); + printf("\n"); + printf("Usage: ./bench_internal [args]\n"); + printf("By default, all benchmarks will be run.\n"); + printf("args:\n"); + printf(" help : display this help and exit\n"); + printf(" scalar : all scalar operations (add, half, inverse, mul, negate, split)\n"); + printf(" field : all field operations (half, inverse, issquare, mul, normalize, sqr, sqrt)\n"); + printf(" group : all group operations (add, double, to_affine)\n"); + printf(" ecmult : all point multiplication operations (ecmult_wnaf) \n"); + printf(" hash : all hash algorithms (hmac, rng6979, sha256)\n"); + printf(" context : all context object operations (context_create)\n"); + printf("\n"); +} + typedef struct { secp256k1_scalar scalar[2]; secp256k1_fe fe[4]; @@ -365,8 +384,19 @@ static void bench_context(void* arg, int iters) { int main(int argc, char **argv) { bench_inv data; - int iters = get_iters(20000); + int default_iters = 20000; + int iters = get_iters(default_iters); int d = argc == 1; /* default */ + + if (argc > 1) { + if (have_flag(argc, argv, "-h") + || have_flag(argc, argv, "--help") + || have_flag(argc, argv, "help")) { + help(default_iters); + return 0; + } + } + print_output_table_header_row(); if (d || have_flag(argc, argv, "scalar") || have_flag(argc, argv, "half")) run_benchmark("scalar_half", bench_scalar_half, bench_setup, NULL, &data, 10, iters*100); From 2f0762fa8fd30b457bc5dcf53403123212091df5 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 23 Nov 2023 22:20:02 +0100 Subject: [PATCH 289/557] field: Remove x86_64 asm Widely available versions of GCC and Clang beat our field asm on -O2. In particular, GCC 10.5.0, which is Bitcoin Core's current compiler for official x86_64 builds, produces code that is > 20% faster for fe_mul and > 10% faster for signature verification (see #726). These are the alternatives to this PR: We could replace our current asm with the fastest compiler output that we can find. This is potentially faster, but it has multiple drawbacks: - It's more coding work because it needs detailed benchmarks (e.g., with many compiler/options). - It's more review work because we need to deal with inline asm (including clobbers etc.) and there's a lack of experts reviewers in this area. - It's not unlikely that we'll fall behind again in a few compiler versions, and then we have to deal with this again, i.e., redo the benchmarks. Given our history here, I doubt that we'll revolve this timely. We could change the default of the asm build option to off. But this will also disable the scalar asm, which is still faster. We could split the build option into two separate options for field and scalar asm and only disable the field asm by default. But this adds complexity to the build and to the test matrix. My conclusion is that this PR gets the low-hanging fruit in terms of performance. It simplifies our code significantly. It's clearly an improvement, and it's very easy to review. Whether re-introducing better asm (whether from a compiler or from CryptOpt) is worth the hassle can be evaluated separately, and should not hold up this improvement. Solves #726. --- Makefile.am | 1 - README.md | 2 +- src/field_5x52_asm_impl.h | 504 -------------------------------------- src/field_5x52_impl.h | 4 - 4 files changed, 1 insertion(+), 510 deletions(-) delete mode 100644 src/field_5x52_asm_impl.h diff --git a/Makefile.am b/Makefile.am index 9d0dc3dffc..5498617915 100644 --- a/Makefile.am +++ b/Makefile.am @@ -37,7 +37,6 @@ noinst_HEADERS += src/field_10x26_impl.h noinst_HEADERS += src/field_5x52.h noinst_HEADERS += src/field_5x52_impl.h noinst_HEADERS += src/field_5x52_int128_impl.h -noinst_HEADERS += src/field_5x52_asm_impl.h noinst_HEADERS += src/modinv32.h noinst_HEADERS += src/modinv32_impl.h noinst_HEADERS += src/modinv64.h diff --git a/README.md b/README.md index 8c32507622..1b6eedd32a 100644 --- a/README.md +++ b/README.md @@ -33,7 +33,7 @@ Implementation details * Expose only higher level interfaces to minimize the API surface and improve application security. ("Be difficult to use insecurely.") * Field operations * Optimized implementation of arithmetic modulo the curve's field size (2^256 - 0x1000003D1). - * Using 5 52-bit limbs (including hand-optimized assembly for x86_64, by Diederik Huys). + * Using 5 52-bit limbs * Using 10 26-bit limbs (including hand-optimized assembly for 32-bit ARM, by Wladimir J. van der Laan). * This is an experimental feature that has not received enough scrutiny to satisfy the standard of quality of this library but is made available for testing and review by the community. * Scalar operations diff --git a/src/field_5x52_asm_impl.h b/src/field_5x52_asm_impl.h deleted file mode 100644 index 04a9af2105..0000000000 --- a/src/field_5x52_asm_impl.h +++ /dev/null @@ -1,504 +0,0 @@ -/*********************************************************************** - * Copyright (c) 2013-2014 Diederik Huys, Pieter Wuille * - * Distributed under the MIT software license, see the accompanying * - * file COPYING or https://www.opensource.org/licenses/mit-license.php.* - ***********************************************************************/ - -/** - * Changelog: - * - March 2013, Diederik Huys: original version - * - November 2014, Pieter Wuille: updated to use Peter Dettman's parallel multiplication algorithm - * - December 2014, Pieter Wuille: converted from YASM to GCC inline assembly - */ - -#ifndef SECP256K1_FIELD_INNER5X52_IMPL_H -#define SECP256K1_FIELD_INNER5X52_IMPL_H - -#include "util.h" - -SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t *a, const uint64_t * SECP256K1_RESTRICT b) { -/** - * Registers: rdx:rax = multiplication accumulator - * r9:r8 = c - * r15:rcx = d - * r10-r14 = a0-a4 - * rbx = b - * rdi = r - * rsi = a / t? - */ - uint64_t tmp1, tmp2, tmp3; -__asm__ __volatile__( - "movq 0(%%rsi),%%r10\n" - "movq 8(%%rsi),%%r11\n" - "movq 16(%%rsi),%%r12\n" - "movq 24(%%rsi),%%r13\n" - "movq 32(%%rsi),%%r14\n" - - /* d += a3 * b0 */ - "movq 0(%%rbx),%%rax\n" - "mulq %%r13\n" - "movq %%rax,%%rcx\n" - "movq %%rdx,%%r15\n" - /* d += a2 * b1 */ - "movq 8(%%rbx),%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a1 * b2 */ - "movq 16(%%rbx),%%rax\n" - "mulq %%r11\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d = a0 * b3 */ - "movq 24(%%rbx),%%rax\n" - "mulq %%r10\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* c = a4 * b4 */ - "movq 32(%%rbx),%%rax\n" - "mulq %%r14\n" - "movq %%rax,%%r8\n" - "movq %%rdx,%%r9\n" - /* d += (c & M) * R */ - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* c >>= 52 (%%r8 only) */ - "shrdq $52,%%r9,%%r8\n" - /* t3 (tmp1) = d & M */ - "movq %%rcx,%%rsi\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rsi\n" - "movq %%rsi,%q1\n" - /* d >>= 52 */ - "shrdq $52,%%r15,%%rcx\n" - "xorq %%r15,%%r15\n" - /* d += a4 * b0 */ - "movq 0(%%rbx),%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a3 * b1 */ - "movq 8(%%rbx),%%rax\n" - "mulq %%r13\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a2 * b2 */ - "movq 16(%%rbx),%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a1 * b3 */ - "movq 24(%%rbx),%%rax\n" - "mulq %%r11\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a0 * b4 */ - "movq 32(%%rbx),%%rax\n" - "mulq %%r10\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += c * R */ - "movq %%r8,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* t4 = d & M (%%rsi) */ - "movq %%rcx,%%rsi\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rsi\n" - /* d >>= 52 */ - "shrdq $52,%%r15,%%rcx\n" - "xorq %%r15,%%r15\n" - /* tx = t4 >> 48 (tmp3) */ - "movq %%rsi,%%rax\n" - "shrq $48,%%rax\n" - "movq %%rax,%q3\n" - /* t4 &= (M >> 4) (tmp2) */ - "movq $0xffffffffffff,%%rax\n" - "andq %%rax,%%rsi\n" - "movq %%rsi,%q2\n" - /* c = a0 * b0 */ - "movq 0(%%rbx),%%rax\n" - "mulq %%r10\n" - "movq %%rax,%%r8\n" - "movq %%rdx,%%r9\n" - /* d += a4 * b1 */ - "movq 8(%%rbx),%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a3 * b2 */ - "movq 16(%%rbx),%%rax\n" - "mulq %%r13\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a2 * b3 */ - "movq 24(%%rbx),%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a1 * b4 */ - "movq 32(%%rbx),%%rax\n" - "mulq %%r11\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* u0 = d & M (%%rsi) */ - "movq %%rcx,%%rsi\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rsi\n" - /* d >>= 52 */ - "shrdq $52,%%r15,%%rcx\n" - "xorq %%r15,%%r15\n" - /* u0 = (u0 << 4) | tx (%%rsi) */ - "shlq $4,%%rsi\n" - "movq %q3,%%rax\n" - "orq %%rax,%%rsi\n" - /* c += u0 * (R >> 4) */ - "movq $0x1000003d1,%%rax\n" - "mulq %%rsi\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* r[0] = c & M */ - "movq %%r8,%%rax\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rax\n" - "movq %%rax,0(%%rdi)\n" - /* c >>= 52 */ - "shrdq $52,%%r9,%%r8\n" - "xorq %%r9,%%r9\n" - /* c += a1 * b0 */ - "movq 0(%%rbx),%%rax\n" - "mulq %%r11\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* c += a0 * b1 */ - "movq 8(%%rbx),%%rax\n" - "mulq %%r10\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* d += a4 * b2 */ - "movq 16(%%rbx),%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a3 * b3 */ - "movq 24(%%rbx),%%rax\n" - "mulq %%r13\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a2 * b4 */ - "movq 32(%%rbx),%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* c += (d & M) * R */ - "movq %%rcx,%%rax\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* d >>= 52 */ - "shrdq $52,%%r15,%%rcx\n" - "xorq %%r15,%%r15\n" - /* r[1] = c & M */ - "movq %%r8,%%rax\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rax\n" - "movq %%rax,8(%%rdi)\n" - /* c >>= 52 */ - "shrdq $52,%%r9,%%r8\n" - "xorq %%r9,%%r9\n" - /* c += a2 * b0 */ - "movq 0(%%rbx),%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* c += a1 * b1 */ - "movq 8(%%rbx),%%rax\n" - "mulq %%r11\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* c += a0 * b2 (last use of %%r10 = a0) */ - "movq 16(%%rbx),%%rax\n" - "mulq %%r10\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* fetch t3 (%%r10, overwrites a0), t4 (%%rsi) */ - "movq %q2,%%rsi\n" - "movq %q1,%%r10\n" - /* d += a4 * b3 */ - "movq 24(%%rbx),%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* d += a3 * b4 */ - "movq 32(%%rbx),%%rax\n" - "mulq %%r13\n" - "addq %%rax,%%rcx\n" - "adcq %%rdx,%%r15\n" - /* c += (d & M) * R */ - "movq %%rcx,%%rax\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* d >>= 52 (%%rcx only) */ - "shrdq $52,%%r15,%%rcx\n" - /* r[2] = c & M */ - "movq %%r8,%%rax\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rax\n" - "movq %%rax,16(%%rdi)\n" - /* c >>= 52 */ - "shrdq $52,%%r9,%%r8\n" - "xorq %%r9,%%r9\n" - /* c += t3 */ - "addq %%r10,%%r8\n" - /* c += d * R */ - "movq %%rcx,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* r[3] = c & M */ - "movq %%r8,%%rax\n" - "movq $0xfffffffffffff,%%rdx\n" - "andq %%rdx,%%rax\n" - "movq %%rax,24(%%rdi)\n" - /* c >>= 52 (%%r8 only) */ - "shrdq $52,%%r9,%%r8\n" - /* c += t4 (%%r8 only) */ - "addq %%rsi,%%r8\n" - /* r[4] = c */ - "movq %%r8,32(%%rdi)\n" -: "+S"(a), "=&m"(tmp1), "=&m"(tmp2), "=&m"(tmp3) -: "b"(b), "D"(r) -: "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "cc", "memory" -); -} - -SECP256K1_INLINE static void secp256k1_fe_sqr_inner(uint64_t *r, const uint64_t *a) { -/** - * Registers: rdx:rax = multiplication accumulator - * r9:r8 = c - * rcx:rbx = d - * r10-r14 = a0-a4 - * r15 = M (0xfffffffffffff) - * rdi = r - * rsi = a / t? - */ - uint64_t tmp1, tmp2, tmp3; -__asm__ __volatile__( - "movq 0(%%rsi),%%r10\n" - "movq 8(%%rsi),%%r11\n" - "movq 16(%%rsi),%%r12\n" - "movq 24(%%rsi),%%r13\n" - "movq 32(%%rsi),%%r14\n" - "movq $0xfffffffffffff,%%r15\n" - - /* d = (a0*2) * a3 */ - "leaq (%%r10,%%r10,1),%%rax\n" - "mulq %%r13\n" - "movq %%rax,%%rbx\n" - "movq %%rdx,%%rcx\n" - /* d += (a1*2) * a2 */ - "leaq (%%r11,%%r11,1),%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* c = a4 * a4 */ - "movq %%r14,%%rax\n" - "mulq %%r14\n" - "movq %%rax,%%r8\n" - "movq %%rdx,%%r9\n" - /* d += (c & M) * R */ - "andq %%r15,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* c >>= 52 (%%r8 only) */ - "shrdq $52,%%r9,%%r8\n" - /* t3 (tmp1) = d & M */ - "movq %%rbx,%%rsi\n" - "andq %%r15,%%rsi\n" - "movq %%rsi,%q1\n" - /* d >>= 52 */ - "shrdq $52,%%rcx,%%rbx\n" - "xorq %%rcx,%%rcx\n" - /* a4 *= 2 */ - "addq %%r14,%%r14\n" - /* d += a0 * a4 */ - "movq %%r10,%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* d+= (a1*2) * a3 */ - "leaq (%%r11,%%r11,1),%%rax\n" - "mulq %%r13\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* d += a2 * a2 */ - "movq %%r12,%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* d += c * R */ - "movq %%r8,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* t4 = d & M (%%rsi) */ - "movq %%rbx,%%rsi\n" - "andq %%r15,%%rsi\n" - /* d >>= 52 */ - "shrdq $52,%%rcx,%%rbx\n" - "xorq %%rcx,%%rcx\n" - /* tx = t4 >> 48 (tmp3) */ - "movq %%rsi,%%rax\n" - "shrq $48,%%rax\n" - "movq %%rax,%q3\n" - /* t4 &= (M >> 4) (tmp2) */ - "movq $0xffffffffffff,%%rax\n" - "andq %%rax,%%rsi\n" - "movq %%rsi,%q2\n" - /* c = a0 * a0 */ - "movq %%r10,%%rax\n" - "mulq %%r10\n" - "movq %%rax,%%r8\n" - "movq %%rdx,%%r9\n" - /* d += a1 * a4 */ - "movq %%r11,%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* d += (a2*2) * a3 */ - "leaq (%%r12,%%r12,1),%%rax\n" - "mulq %%r13\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* u0 = d & M (%%rsi) */ - "movq %%rbx,%%rsi\n" - "andq %%r15,%%rsi\n" - /* d >>= 52 */ - "shrdq $52,%%rcx,%%rbx\n" - "xorq %%rcx,%%rcx\n" - /* u0 = (u0 << 4) | tx (%%rsi) */ - "shlq $4,%%rsi\n" - "movq %q3,%%rax\n" - "orq %%rax,%%rsi\n" - /* c += u0 * (R >> 4) */ - "movq $0x1000003d1,%%rax\n" - "mulq %%rsi\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* r[0] = c & M */ - "movq %%r8,%%rax\n" - "andq %%r15,%%rax\n" - "movq %%rax,0(%%rdi)\n" - /* c >>= 52 */ - "shrdq $52,%%r9,%%r8\n" - "xorq %%r9,%%r9\n" - /* a0 *= 2 */ - "addq %%r10,%%r10\n" - /* c += a0 * a1 */ - "movq %%r10,%%rax\n" - "mulq %%r11\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* d += a2 * a4 */ - "movq %%r12,%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* d += a3 * a3 */ - "movq %%r13,%%rax\n" - "mulq %%r13\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* c += (d & M) * R */ - "movq %%rbx,%%rax\n" - "andq %%r15,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* d >>= 52 */ - "shrdq $52,%%rcx,%%rbx\n" - "xorq %%rcx,%%rcx\n" - /* r[1] = c & M */ - "movq %%r8,%%rax\n" - "andq %%r15,%%rax\n" - "movq %%rax,8(%%rdi)\n" - /* c >>= 52 */ - "shrdq $52,%%r9,%%r8\n" - "xorq %%r9,%%r9\n" - /* c += a0 * a2 (last use of %%r10) */ - "movq %%r10,%%rax\n" - "mulq %%r12\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* fetch t3 (%%r10, overwrites a0),t4 (%%rsi) */ - "movq %q2,%%rsi\n" - "movq %q1,%%r10\n" - /* c += a1 * a1 */ - "movq %%r11,%%rax\n" - "mulq %%r11\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* d += a3 * a4 */ - "movq %%r13,%%rax\n" - "mulq %%r14\n" - "addq %%rax,%%rbx\n" - "adcq %%rdx,%%rcx\n" - /* c += (d & M) * R */ - "movq %%rbx,%%rax\n" - "andq %%r15,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* d >>= 52 (%%rbx only) */ - "shrdq $52,%%rcx,%%rbx\n" - /* r[2] = c & M */ - "movq %%r8,%%rax\n" - "andq %%r15,%%rax\n" - "movq %%rax,16(%%rdi)\n" - /* c >>= 52 */ - "shrdq $52,%%r9,%%r8\n" - "xorq %%r9,%%r9\n" - /* c += t3 */ - "addq %%r10,%%r8\n" - /* c += d * R */ - "movq %%rbx,%%rax\n" - "movq $0x1000003d10,%%rdx\n" - "mulq %%rdx\n" - "addq %%rax,%%r8\n" - "adcq %%rdx,%%r9\n" - /* r[3] = c & M */ - "movq %%r8,%%rax\n" - "andq %%r15,%%rax\n" - "movq %%rax,24(%%rdi)\n" - /* c >>= 52 (%%r8 only) */ - "shrdq $52,%%r9,%%r8\n" - /* c += t4 (%%r8 only) */ - "addq %%rsi,%%r8\n" - /* r[4] = c */ - "movq %%r8,32(%%rdi)\n" -: "+S"(a), "=&m"(tmp1), "=&m"(tmp2), "=&m"(tmp3) -: "D"(r) -: "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "cc", "memory" -); -} - -#endif /* SECP256K1_FIELD_INNER5X52_IMPL_H */ diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index ecb70502c2..76031f755e 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -12,11 +12,7 @@ #include "field.h" #include "modinv64_impl.h" -#if defined(USE_ASM_X86_64) -#include "field_5x52_asm_impl.h" -#else #include "field_5x52_int128_impl.h" -#endif #ifdef VERIFY static void secp256k1_fe_impl_verify(const secp256k1_fe *a) { From f07cead0ca96e26356466b635ce6e7fe3834c949 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 23 Nov 2023 22:51:48 +0100 Subject: [PATCH 290/557] build: Don't call assembly an optimization because we don't know whether it's an optimization. --- CMakeLists.txt | 10 +++++----- configure.ac | 14 +++++++------- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 2100d24929..b7aa20c18d 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -107,7 +107,7 @@ if(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) endif() mark_as_advanced(FORCE SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) -set(SECP256K1_ASM "AUTO" CACHE STRING "Assembly optimizations to use: \"AUTO\", \"OFF\", \"x86_64\" or \"arm32\" (experimental). [default=AUTO]") +set(SECP256K1_ASM "AUTO" CACHE STRING "Assembly to use: \"AUTO\", \"OFF\", \"x86_64\" or \"arm32\" (experimental). [default=AUTO]") set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm32") check_string_option_value(SECP256K1_ASM) if(SECP256K1_ASM STREQUAL "arm32") @@ -117,7 +117,7 @@ if(SECP256K1_ASM STREQUAL "arm32") if(HAVE_ARM32_ASM) add_compile_definitions(USE_EXTERNAL_ASM=1) else() - message(FATAL_ERROR "ARM32 assembly optimization requested but not available.") + message(FATAL_ERROR "ARM32 assembly requested but not available.") endif() elseif(SECP256K1_ASM) include(CheckX86_64Assembly) @@ -128,14 +128,14 @@ elseif(SECP256K1_ASM) elseif(SECP256K1_ASM STREQUAL "AUTO") set(SECP256K1_ASM "OFF") else() - message(FATAL_ERROR "x86_64 assembly optimization requested but not available.") + message(FATAL_ERROR "x86_64 assembly requested but not available.") endif() endif() option(SECP256K1_EXPERIMENTAL "Allow experimental configuration options." OFF) if(NOT SECP256K1_EXPERIMENTAL) if(SECP256K1_ASM STREQUAL "arm32") - message(FATAL_ERROR "ARM32 assembly optimization is experimental. Use -DSECP256K1_EXPERIMENTAL=ON to allow.") + message(FATAL_ERROR "ARM32 assembly is experimental. Use -DSECP256K1_EXPERIMENTAL=ON to allow.") endif() endif() @@ -280,7 +280,7 @@ message("Parameters:") message(" ecmult window size .................. ${SECP256K1_ECMULT_WINDOW_SIZE}") message(" ecmult gen precision bits ........... ${SECP256K1_ECMULT_GEN_PREC_BITS}") message("Optional features:") -message(" assembly optimization ............... ${SECP256K1_ASM}") +message(" assembly ............................ ${SECP256K1_ASM}") message(" external callbacks .................. ${SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS}") if(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY) message(" wide multiplication (test-only) ..... ${SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY}") diff --git a/configure.ac b/configure.ac index e82ac75fab..50ce115c70 100644 --- a/configure.ac +++ b/configure.ac @@ -201,7 +201,7 @@ AC_ARG_ENABLE(external_default_callbacks, AC_ARG_WITH([test-override-wide-multiply], [] ,[set_widemul=$withval], [set_widemul=auto]) AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm32|no|auto], -[assembly optimizations to use (experimental: arm32) [default=auto]])],[req_asm=$withval], [req_asm=auto]) +[assembly to use (experimental: arm32) [default=auto]])],[req_asm=$withval], [req_asm=auto]) AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE|auto], [window size for ecmult precomputation for verification, specified as integer in range [2..24].] @@ -279,24 +279,24 @@ else x86_64) SECP_X86_64_ASM_CHECK if test x"$has_x86_64_asm" != x"yes"; then - AC_MSG_ERROR([x86_64 assembly optimization requested but not available]) + AC_MSG_ERROR([x86_64 assembly requested but not available]) fi ;; arm32) SECP_ARM32_ASM_CHECK if test x"$has_arm32_asm" != x"yes"; then - AC_MSG_ERROR([ARM32 assembly optimization requested but not available]) + AC_MSG_ERROR([ARM32 assembly requested but not available]) fi ;; no) ;; *) - AC_MSG_ERROR([invalid assembly optimization selection]) + AC_MSG_ERROR([invalid assembly selection]) ;; esac fi -# Select assembly optimization +# Select assembly enable_external_asm=no case $set_asm in @@ -309,7 +309,7 @@ arm32) no) ;; *) - AC_MSG_ERROR([invalid assembly optimizations]) + AC_MSG_ERROR([invalid assembly selection]) ;; esac @@ -425,7 +425,7 @@ if test x"$enable_experimental" = x"yes"; then AC_MSG_NOTICE([******]) else if test x"$set_asm" = x"arm32"; then - AC_MSG_ERROR([ARM32 assembly optimization is experimental. Use --enable-experimental to allow.]) + AC_MSG_ERROR([ARM32 assembly is experimental. Use --enable-experimental to allow.]) fi fi From c2688f8de9fb9a44dc953d2f8a0e9226d8e19349 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 4 Aug 2023 01:16:58 +0200 Subject: [PATCH 291/557] redefine VERIFY_CHECK to empty in production (non-VERIFY) mode As suggested in issue #1381, this will make things simpler and improve code readability, as we don't need to force omitting of evaluations on a case-by-case basis anymore and hence can remove lots of `#ifdef VERIFY`/`#endif` lines (see next commit). Plus, VERIFY_CHECK behaves now identical in both non-VERIFY and coverage mode, making the latter not special anymore and hopefully decreasing maintenance burden. The idea of "side-effect safety" is given up. Note that at two places in the ellswift module void-casts of return values have to be inserted for non-VERIFY builds, in order to avoid "variable ... set but not used [-Wunused-but-set-variable]" warnings. --- src/modules/ellswift/main_impl.h | 8 ++++++++ src/util.h | 9 +++------ 2 files changed, 11 insertions(+), 6 deletions(-) diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index 00bb8a3da5..d7bcf8577d 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -272,7 +272,11 @@ static int secp256k1_ellswift_xswiftec_inv_var(secp256k1_fe *t, const secp256k1_ secp256k1_fe_negate(&q, &q, 1); /* q = -s*(4*(u^3+7)+3*u^2*s) */ if (!secp256k1_fe_is_square_var(&q)) return 0; ret = secp256k1_fe_sqrt(&r, &q); /* r = sqrt(-s*(4*(u^3+7)+3*u^2*s)) */ +#ifdef VERIFY VERIFY_CHECK(ret); +#else + (void)ret; +#endif /* If (c & 1) = 1 and r = 0, fail. */ if (EXPECT((c & 1) && secp256k1_fe_normalizes_to_zero_var(&r), 0)) return 0; @@ -417,7 +421,11 @@ int secp256k1_ellswift_encode(const secp256k1_context *ctx, unsigned char *ell64 * BIP340 tagged hash with tag "secp256k1_ellswift_encode". */ secp256k1_ellswift_sha256_init_encode(&hash); ser_ret = secp256k1_eckey_pubkey_serialize(&p, p64, &ser_size, 1); +#ifdef VERIFY VERIFY_CHECK(ser_ret && ser_size == 33); +#else + (void)ser_ret; +#endif secp256k1_sha256_write(&hash, p64, sizeof(p64)); secp256k1_sha256_write(&hash, rnd32, 32); diff --git a/src/util.h b/src/util.h index cf7e5d1af5..1f1f92c99b 100644 --- a/src/util.h +++ b/src/util.h @@ -132,15 +132,12 @@ static const secp256k1_callback default_error_callback = { } while(0) #endif -/* Like assert(), but when VERIFY is defined, and side-effect safe. */ -#if defined(COVERAGE) -#define VERIFY_CHECK(check) -#define VERIFY_SETUP(stmt) -#elif defined(VERIFY) +/* Like assert(), but when VERIFY is defined. */ +#if defined(VERIFY) #define VERIFY_CHECK CHECK #define VERIFY_SETUP(stmt) do { stmt; } while(0) #else -#define VERIFY_CHECK(cond) do { (void)(cond); } while(0) +#define VERIFY_CHECK(cond) #define VERIFY_SETUP(stmt) #endif From 5d89bc031b25dc0aaba8c7d2eeba88ae92facb09 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 4 Aug 2023 01:47:18 +0200 Subject: [PATCH 292/557] remove superfluous `#ifdef VERIFY`/`#endif` preprocessor conditions Now that the `VERIFY_CHECK` compiles to empty in non-VERIFY mode, blocks that only consist of these macros don't need surrounding `#ifdef VERIFY` conditions anymore. At some places intentional blank lines are inserted for grouping and better readadbility. --- src/ecmult_const_impl.h | 6 ----- src/field_10x26_impl.h | 4 --- src/field_5x52_int128_impl.h | 5 ---- src/group_impl.h | 7 +---- src/modinv32_impl.h | 33 ++++++++---------------- src/modinv64_impl.h | 44 ++++++++++++-------------------- src/modules/ellswift/main_impl.h | 13 +++------- src/scalar_4x64_impl.h | 6 ----- src/scalar_8x32_impl.h | 6 ----- src/scalar_impl.h | 2 -- src/scalar_low_impl.h | 2 -- 11 files changed, 31 insertions(+), 97 deletions(-) diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index 7fd7eadc7b..ece1edc1b5 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -349,9 +349,7 @@ static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, secp256k1_fe_mul(&g, &g, n); if (d) { secp256k1_fe b; -#ifdef VERIFY VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero(d)); -#endif secp256k1_fe_sqr(&b, d); VERIFY_CHECK(SECP256K1_B <= 8); /* magnitude of b will be <= 8 after the next call */ secp256k1_fe_mul_int(&b, SECP256K1_B); @@ -384,13 +382,9 @@ static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, p.infinity = 0; /* Perform x-only EC multiplication of P with q. */ -#ifdef VERIFY VERIFY_CHECK(!secp256k1_scalar_is_zero(q)); -#endif secp256k1_ecmult_const(&rj, &p, q); -#ifdef VERIFY VERIFY_CHECK(!secp256k1_gej_is_infinity(&rj)); -#endif /* The resulting (X, Y, Z) point on the effective-affine isomorphic curve corresponds to * (X, Y, Z*v) on the secp256k1 curve. The affine version of that has X coordinate diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 8445db1639..666068c712 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -403,11 +403,7 @@ void secp256k1_fe_sqr_inner(uint32_t *r, const uint32_t *a); #else -#ifdef VERIFY #define VERIFY_BITS(x, n) VERIFY_CHECK(((x) >> (n)) == 0) -#else -#define VERIFY_BITS(x, n) do { } while(0) -#endif SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint32_t *r, const uint32_t *a, const uint32_t * SECP256K1_RESTRICT b) { uint64_t c, d; diff --git a/src/field_5x52_int128_impl.h b/src/field_5x52_int128_impl.h index 1a472f97bb..f23f8ee1c4 100644 --- a/src/field_5x52_int128_impl.h +++ b/src/field_5x52_int128_impl.h @@ -12,13 +12,8 @@ #include "int128.h" #include "util.h" -#ifdef VERIFY #define VERIFY_BITS(x, n) VERIFY_CHECK(((x) >> (n)) == 0) #define VERIFY_BITS_128(x, n) VERIFY_CHECK(secp256k1_u128_check_bits((x), (n))) -#else -#define VERIFY_BITS(x, n) do { } while(0) -#define VERIFY_BITS_128(x, n) do { } while(0) -#endif SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t *a, const uint64_t * SECP256K1_RESTRICT b) { secp256k1_uint128 c, d; diff --git a/src/group_impl.h b/src/group_impl.h index b9542ce8ae..dc76ac179e 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -362,9 +362,7 @@ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) secp256k1_fe r; secp256k1_fe_verify(x); secp256k1_gej_verify(a); -#ifdef VERIFY VERIFY_CHECK(!a->infinity); -#endif secp256k1_fe_sqr(&r, &a->z); secp256k1_fe_mul(&r, &r, x); return secp256k1_fe_equal(&r, &a->x); @@ -809,9 +807,7 @@ static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *s) { secp256k1_fe zz; secp256k1_gej_verify(r); secp256k1_fe_verify(s); -#ifdef VERIFY VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(s)); -#endif secp256k1_fe_sqr(&zz, s); secp256k1_fe_mul(&r->x, &r->x, &zz); /* r->x *= s^2 */ @@ -907,9 +903,8 @@ static int secp256k1_ge_x_frac_on_curve_var(const secp256k1_fe *xn, const secp25 * (xn/xd)^3 + 7 is square <=> xd*xn^3 + 7*xd^4 is square (multiplying by xd^4, a square). */ secp256k1_fe r, t; -#ifdef VERIFY VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(xd)); -#endif + secp256k1_fe_mul(&r, xd, xn); /* r = xd*xn */ secp256k1_fe_sqr(&t, xn); /* t = xn^2 */ secp256k1_fe_mul(&r, &r, &t); /* r = xd*xn^3 */ diff --git a/src/modinv32_impl.h b/src/modinv32_impl.h index 0ea2699863..75eb354ff0 100644 --- a/src/modinv32_impl.h +++ b/src/modinv32_impl.h @@ -144,7 +144,6 @@ static void secp256k1_modinv32_normalize_30(secp256k1_modinv32_signed30 *r, int3 r->v[7] = r7; r->v[8] = r8; -#ifdef VERIFY VERIFY_CHECK(r0 >> 30 == 0); VERIFY_CHECK(r1 >> 30 == 0); VERIFY_CHECK(r2 >> 30 == 0); @@ -156,7 +155,6 @@ static void secp256k1_modinv32_normalize_30(secp256k1_modinv32_signed30 *r, int3 VERIFY_CHECK(r8 >> 30 == 0); VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(r, 9, &modinfo->modulus, 0) >= 0); /* r >= 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(r, 9, &modinfo->modulus, 1) < 0); /* r < modulus */ -#endif } /* Data type for transition matrices (see section 3 of explanation). @@ -413,14 +411,13 @@ static void secp256k1_modinv32_update_de_30(secp256k1_modinv32_signed30 *d, secp int32_t di, ei, md, me, sd, se; int64_t cd, ce; int i; -#ifdef VERIFY VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(d, 9, &modinfo->modulus, -2) > 0); /* d > -2*modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(d, 9, &modinfo->modulus, 1) < 0); /* d < modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(e, 9, &modinfo->modulus, -2) > 0); /* e > -2*modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(e, 9, &modinfo->modulus, 1) < 0); /* e < modulus */ VERIFY_CHECK(labs(u) <= (M30 + 1 - labs(v))); /* |u|+|v| <= 2^30 */ VERIFY_CHECK(labs(q) <= (M30 + 1 - labs(r))); /* |q|+|r| <= 2^30 */ -#endif + /* [md,me] start as zero; plus [u,q] if d is negative; plus [v,r] if e is negative. */ sd = d->v[8] >> 31; se = e->v[8] >> 31; @@ -455,12 +452,11 @@ static void secp256k1_modinv32_update_de_30(secp256k1_modinv32_signed30 *d, secp /* What remains is limb 9 of t*[d,e]+modulus*[md,me]; store it as output limb 8. */ d->v[8] = (int32_t)cd; e->v[8] = (int32_t)ce; -#ifdef VERIFY + VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(d, 9, &modinfo->modulus, -2) > 0); /* d > -2*modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(d, 9, &modinfo->modulus, 1) < 0); /* d < modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(e, 9, &modinfo->modulus, -2) > 0); /* e > -2*modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(e, 9, &modinfo->modulus, 1) < 0); /* e < modulus */ -#endif } /* Compute (t/2^30) * [f, g], where t is a transition matrix for 30 divsteps. @@ -550,25 +546,23 @@ static void secp256k1_modinv32(secp256k1_modinv32_signed30 *x, const secp256k1_m /* Update d,e using that transition matrix. */ secp256k1_modinv32_update_de_30(&d, &e, &t, modinfo); /* Update f,g using that transition matrix. */ -#ifdef VERIFY VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, 9, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, 9, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif + secp256k1_modinv32_update_fg_30(&f, &g, &t); -#ifdef VERIFY + VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, 9, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, 9, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif } /* At this point sufficient iterations have been performed that g must have reached 0 * and (if g was not originally 0) f must now equal +/- GCD of the initial f, g * values i.e. +/- 1, and d now contains +/- the modular inverse. */ -#ifdef VERIFY + /* g == 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, 9, &SECP256K1_SIGNED30_ONE, 0) == 0); /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ @@ -578,7 +572,6 @@ static void secp256k1_modinv32(secp256k1_modinv32_signed30 *x, const secp256k1_m secp256k1_modinv32_mul_cmp_30(&d, 9, &SECP256K1_SIGNED30_ONE, 0) == 0 && (secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, 1) == 0 || secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, -1) == 0))); -#endif /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv32_normalize_30(&d, f.v[8], modinfo); @@ -607,12 +600,12 @@ static void secp256k1_modinv32_var(secp256k1_modinv32_signed30 *x, const secp256 /* Update d,e using that transition matrix. */ secp256k1_modinv32_update_de_30(&d, &e, &t, modinfo); /* Update f,g using that transition matrix. */ -#ifdef VERIFY + VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif + secp256k1_modinv32_update_fg_30_var(len, &f, &g, &t); /* If the bottom limb of g is 0, there is a chance g=0. */ if (g.v[0] == 0) { @@ -637,18 +630,17 @@ static void secp256k1_modinv32_var(secp256k1_modinv32_signed30 *x, const secp256 g.v[len - 2] |= (uint32_t)gn << 30; --len; } -#ifdef VERIFY + VERIFY_CHECK(++i < 25); /* We should never need more than 25*30 = 750 divsteps */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif } /* At this point g is 0 and (if g was not originally 0) f must now equal +/- GCD of * the initial f, g values i.e. +/- 1, and d now contains +/- the modular inverse. */ -#ifdef VERIFY + /* g == 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &SECP256K1_SIGNED30_ONE, 0) == 0); /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ @@ -658,7 +650,6 @@ static void secp256k1_modinv32_var(secp256k1_modinv32_signed30 *x, const secp256 secp256k1_modinv32_mul_cmp_30(&d, 9, &SECP256K1_SIGNED30_ONE, 0) == 0 && (secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 1) == 0 || secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, -1) == 0))); -#endif /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv32_normalize_30(&d, f.v[len - 1], modinfo); @@ -697,12 +688,11 @@ static int secp256k1_jacobi32_maybe_var(const secp256k1_modinv32_signed30 *x, co secp256k1_modinv32_trans2x2 t; eta = secp256k1_modinv32_posdivsteps_30_var(eta, f.v[0] | ((uint32_t)f.v[1] << 30), g.v[0] | ((uint32_t)g.v[1] << 30), &t, &jac); /* Update f,g using that transition matrix. */ -#ifdef VERIFY VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 0) > 0); /* f > 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, 0) > 0); /* g > 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif + secp256k1_modinv32_update_fg_30_var(len, &f, &g, &t); /* If the bottom limb of f is 1, there is a chance that f=1. */ if (f.v[0] == 1) { @@ -723,12 +713,11 @@ static int secp256k1_jacobi32_maybe_var(const secp256k1_modinv32_signed30 *x, co cond |= gn; /* If so, reduce length. */ if (cond == 0) --len; -#ifdef VERIFY + VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 0) > 0); /* f > 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, 0) > 0); /* g > 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif } /* The loop failed to converge to f=g after 1500 iterations. Return 0, indicating unknown result. */ diff --git a/src/modinv64_impl.h b/src/modinv64_impl.h index c7cef872a4..0dc1e80696 100644 --- a/src/modinv64_impl.h +++ b/src/modinv64_impl.h @@ -144,7 +144,6 @@ static void secp256k1_modinv64_normalize_62(secp256k1_modinv64_signed62 *r, int6 r->v[3] = r3; r->v[4] = r4; -#ifdef VERIFY VERIFY_CHECK(r0 >> 62 == 0); VERIFY_CHECK(r1 >> 62 == 0); VERIFY_CHECK(r2 >> 62 == 0); @@ -152,7 +151,6 @@ static void secp256k1_modinv64_normalize_62(secp256k1_modinv64_signed62 *r, int6 VERIFY_CHECK(r4 >> 62 == 0); VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(r, 5, &modinfo->modulus, 0) >= 0); /* r >= 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(r, 5, &modinfo->modulus, 1) < 0); /* r < modulus */ -#endif } /* Compute the transition matrix and eta for 59 divsteps (where zeta=-(delta+1/2)). @@ -216,7 +214,7 @@ static int64_t secp256k1_modinv64_divsteps_59(int64_t zeta, uint64_t f0, uint64_ t->v = (int64_t)v; t->q = (int64_t)q; t->r = (int64_t)r; -#ifdef VERIFY + /* The determinant of t must be a power of two. This guarantees that multiplication with t * does not change the gcd of f and g, apart from adding a power-of-2 factor to it (which * will be divided out again). As each divstep's individual matrix has determinant 2, the @@ -224,7 +222,7 @@ static int64_t secp256k1_modinv64_divsteps_59(int64_t zeta, uint64_t f0, uint64_ * 8*identity (which has determinant 2^6) means the overall outputs has determinant * 2^65. */ VERIFY_CHECK(secp256k1_modinv64_det_check_pow2(t, 65, 0)); -#endif + return zeta; } @@ -301,13 +299,13 @@ static int64_t secp256k1_modinv64_divsteps_62_var(int64_t eta, uint64_t f0, uint t->v = (int64_t)v; t->q = (int64_t)q; t->r = (int64_t)r; -#ifdef VERIFY + /* The determinant of t must be a power of two. This guarantees that multiplication with t * does not change the gcd of f and g, apart from adding a power-of-2 factor to it (which * will be divided out again). As each divstep's individual matrix has determinant 2, the * aggregate of 62 of them will have determinant 2^62. */ VERIFY_CHECK(secp256k1_modinv64_det_check_pow2(t, 62, 0)); -#endif + return eta; } @@ -392,13 +390,13 @@ static int64_t secp256k1_modinv64_posdivsteps_62_var(int64_t eta, uint64_t f0, u t->v = (int64_t)v; t->q = (int64_t)q; t->r = (int64_t)r; -#ifdef VERIFY + /* The determinant of t must be a power of two. This guarantees that multiplication with t * does not change the gcd of f and g, apart from adding a power-of-2 factor to it (which * will be divided out again). As each divstep's individual matrix has determinant 2 or -2, * the aggregate of 62 of them will have determinant 2^62 or -2^62. */ VERIFY_CHECK(secp256k1_modinv64_det_check_pow2(t, 62, 1)); -#endif + *jacp = jac; return eta; } @@ -417,14 +415,13 @@ static void secp256k1_modinv64_update_de_62(secp256k1_modinv64_signed62 *d, secp const int64_t u = t->u, v = t->v, q = t->q, r = t->r; int64_t md, me, sd, se; secp256k1_int128 cd, ce; -#ifdef VERIFY VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(d, 5, &modinfo->modulus, -2) > 0); /* d > -2*modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(d, 5, &modinfo->modulus, 1) < 0); /* d < modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(e, 5, &modinfo->modulus, -2) > 0); /* e > -2*modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(e, 5, &modinfo->modulus, 1) < 0); /* e < modulus */ VERIFY_CHECK(secp256k1_modinv64_abs(u) <= (((int64_t)1 << 62) - secp256k1_modinv64_abs(v))); /* |u|+|v| <= 2^62 */ VERIFY_CHECK(secp256k1_modinv64_abs(q) <= (((int64_t)1 << 62) - secp256k1_modinv64_abs(r))); /* |q|+|r| <= 2^62 */ -#endif + /* [md,me] start as zero; plus [u,q] if d is negative; plus [v,r] if e is negative. */ sd = d4 >> 63; se = e4 >> 63; @@ -489,12 +486,11 @@ static void secp256k1_modinv64_update_de_62(secp256k1_modinv64_signed62 *d, secp /* What remains is limb 5 of t*[d,e]+modulus*[md,me]; store it as output limb 4. */ d->v[4] = secp256k1_i128_to_i64(&cd); e->v[4] = secp256k1_i128_to_i64(&ce); -#ifdef VERIFY + VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(d, 5, &modinfo->modulus, -2) > 0); /* d > -2*modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(d, 5, &modinfo->modulus, 1) < 0); /* d < modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(e, 5, &modinfo->modulus, -2) > 0); /* e > -2*modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(e, 5, &modinfo->modulus, 1) < 0); /* e < modulus */ -#endif } /* Compute (t/2^62) * [f, g], where t is a transition matrix scaled by 2^62. @@ -606,25 +602,23 @@ static void secp256k1_modinv64(secp256k1_modinv64_signed62 *x, const secp256k1_m /* Update d,e using that transition matrix. */ secp256k1_modinv64_update_de_62(&d, &e, &t, modinfo); /* Update f,g using that transition matrix. */ -#ifdef VERIFY VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, 5, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, 5, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif + secp256k1_modinv64_update_fg_62(&f, &g, &t); -#ifdef VERIFY + VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, 5, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, 5, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif } /* At this point sufficient iterations have been performed that g must have reached 0 * and (if g was not originally 0) f must now equal +/- GCD of the initial f, g * values i.e. +/- 1, and d now contains +/- the modular inverse. */ -#ifdef VERIFY + /* g == 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, 5, &SECP256K1_SIGNED62_ONE, 0) == 0); /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ @@ -634,7 +628,6 @@ static void secp256k1_modinv64(secp256k1_modinv64_signed62 *x, const secp256k1_m secp256k1_modinv64_mul_cmp_62(&d, 5, &SECP256K1_SIGNED62_ONE, 0) == 0 && (secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, 1) == 0 || secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, -1) == 0))); -#endif /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv64_normalize_62(&d, f.v[4], modinfo); @@ -663,12 +656,11 @@ static void secp256k1_modinv64_var(secp256k1_modinv64_signed62 *x, const secp256 /* Update d,e using that transition matrix. */ secp256k1_modinv64_update_de_62(&d, &e, &t, modinfo); /* Update f,g using that transition matrix. */ -#ifdef VERIFY VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif + secp256k1_modinv64_update_fg_62_var(len, &f, &g, &t); /* If the bottom limb of g is zero, there is a chance that g=0. */ if (g.v[0] == 0) { @@ -693,18 +685,17 @@ static void secp256k1_modinv64_var(secp256k1_modinv64_signed62 *x, const secp256 g.v[len - 2] |= (uint64_t)gn << 62; --len; } -#ifdef VERIFY + VERIFY_CHECK(++i < 12); /* We should never need more than 12*62 = 744 divsteps */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, -1) > 0); /* f > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, -1) > 0); /* g > -modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif } /* At this point g is 0 and (if g was not originally 0) f must now equal +/- GCD of * the initial f, g values i.e. +/- 1, and d now contains +/- the modular inverse. */ -#ifdef VERIFY + /* g == 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &SECP256K1_SIGNED62_ONE, 0) == 0); /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ @@ -714,7 +705,6 @@ static void secp256k1_modinv64_var(secp256k1_modinv64_signed62 *x, const secp256 secp256k1_modinv64_mul_cmp_62(&d, 5, &SECP256K1_SIGNED62_ONE, 0) == 0 && (secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 1) == 0 || secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, -1) == 0))); -#endif /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv64_normalize_62(&d, f.v[len - 1], modinfo); @@ -753,12 +743,11 @@ static int secp256k1_jacobi64_maybe_var(const secp256k1_modinv64_signed62 *x, co secp256k1_modinv64_trans2x2 t; eta = secp256k1_modinv64_posdivsteps_62_var(eta, f.v[0] | ((uint64_t)f.v[1] << 62), g.v[0] | ((uint64_t)g.v[1] << 62), &t, &jac); /* Update f,g using that transition matrix. */ -#ifdef VERIFY VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 0) > 0); /* f > 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, 0) > 0); /* g > 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif + secp256k1_modinv64_update_fg_62_var(len, &f, &g, &t); /* If the bottom limb of f is 1, there is a chance that f=1. */ if (f.v[0] == 1) { @@ -779,12 +768,11 @@ static int secp256k1_jacobi64_maybe_var(const secp256k1_modinv64_signed62 *x, co cond |= gn; /* If so, reduce length. */ if (cond == 0) --len; -#ifdef VERIFY + VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 0) > 0); /* f > 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 1) <= 0); /* f <= modulus */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, 0) > 0); /* g > 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &modinfo->modulus, 1) < 0); /* g < modulus */ -#endif } /* The loop failed to converge to f=g after 1550 iterations. Return 0, indicating unknown result. */ diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index d7bcf8577d..b54ec08a22 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -126,9 +126,8 @@ static void secp256k1_ellswift_xswiftec_frac_var(secp256k1_fe *xn, secp256k1_fe secp256k1_fe_mul(&l, &p, &u1); /* l = u*(g+s) */ secp256k1_fe_add(&n, &l); /* n = u*(c1*s+c2*g)+u*(g+s) */ secp256k1_fe_negate(xn, &n, 2); /* n = -u*(c1*s+c2*g)-u*(g+s) */ -#ifdef VERIFY + VERIFY_CHECK(secp256k1_ge_x_frac_on_curve_var(xn, &p)); -#endif /* Return x3 = n/p = -(u*(c1*s+c2*g)/(g+s)+u) */ } @@ -193,10 +192,8 @@ static int secp256k1_ellswift_xswiftec_inv_var(secp256k1_fe *t, const secp256k1_ secp256k1_fe_normalize_weak(&x); secp256k1_fe_normalize_weak(&u); -#ifdef VERIFY VERIFY_CHECK(c >= 0 && c < 8); VERIFY_CHECK(secp256k1_ge_x_on_curve_var(&x)); -#endif if (!(c & 2)) { /* c is in {0, 1, 4, 5}. In this case we look for an inverse under the x1 (if c=0 or @@ -230,9 +227,7 @@ static int secp256k1_ellswift_xswiftec_inv_var(secp256k1_fe *t, const secp256k1_ * that (-u-x)^3 + B is not square (the secp256k1_ge_x_on_curve_var(&m) * test above would have failed). This is a contradiction, and thus the * assumption s=0 is false. */ -#ifdef VERIFY VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(&s)); -#endif /* If s is not square, fail. We have not fully computed s yet, but s is square iff * -(u^3+7)*(u^2+u*x+x^2) is square (because a/b is square iff a*b is square and b is @@ -324,10 +319,9 @@ static void secp256k1_ellswift_prng(unsigned char* out32, const secp256k1_sha256 buf4[3] = cnt >> 24; secp256k1_sha256_write(&hash, buf4, 4); secp256k1_sha256_finalize(&hash, out32); -#ifdef VERIFY + /* Writing and finalizing together should trigger exactly one SHA256 compression. */ VERIFY_CHECK(((hash.bytes) >> 6) == (blocks + 1)); -#endif } /** Find an ElligatorSwift encoding (u, t) for X coordinate x, and random Y coordinate. @@ -365,9 +359,8 @@ static void secp256k1_ellswift_xelligatorswift_var(unsigned char *u32, secp256k1 /* Since u is the output of a hash, it should practically never be 0. We could apply the * u=0 to u=1 correction here too to deal with that case still, but it's such a low * probability event that we do not bother. */ -#ifdef VERIFY VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(&u)); -#endif + /* Find a remainder t, and return it if found. */ if (EXPECT(secp256k1_ellswift_xswiftec_inv_var(t, x, &u, branch), 0)) break; } diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index b3cc7523f7..0b6e558c14 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -144,9 +144,7 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int r->d[3] = secp256k1_u128_to_u64(&t); secp256k1_scalar_verify(r); -#ifdef VERIFY VERIFY_CHECK(secp256k1_u128_hi_u64(&t) == 0); -#endif } static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b32, int *overflow) { @@ -960,9 +958,7 @@ static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar secp256k1_scalar_from_signed62(r, &s); secp256k1_scalar_verify(r); -#ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); -#endif } static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_scalar *x) { @@ -977,9 +973,7 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc secp256k1_scalar_from_signed62(r, &s); secp256k1_scalar_verify(r); -#ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); -#endif } SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index fed2e77b69..faa62089a5 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -179,9 +179,7 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int r->d[7] = t & 0xFFFFFFFFULL; secp256k1_scalar_verify(r); -#ifdef VERIFY VERIFY_CHECK((t >> 32) == 0); -#endif } static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b32, int *overflow) { @@ -802,9 +800,7 @@ static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar secp256k1_scalar_from_signed30(r, &s); secp256k1_scalar_verify(r); -#ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); -#endif } static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_scalar *x) { @@ -819,9 +815,7 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc secp256k1_scalar_from_signed30(r, &s); secp256k1_scalar_verify(r); -#ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); -#endif } SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { diff --git a/src/scalar_impl.h b/src/scalar_impl.h index 3eca23b4f9..b09821fd51 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -36,9 +36,7 @@ static int secp256k1_scalar_set_b32_seckey(secp256k1_scalar *r, const unsigned c } static void secp256k1_scalar_verify(const secp256k1_scalar *r) { -#ifdef VERIFY VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0); -#endif (void)r; } diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 1929b175e0..f2f0d3467a 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -61,11 +61,9 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int *r += ((uint32_t)1 << bit); secp256k1_scalar_verify(r); -#ifdef VERIFY VERIFY_CHECK(bit < 32); /* Verify that adding (1 << bit) will not overflow any in-range scalar *r by overflowing the underlying uint32_t. */ VERIFY_CHECK(((uint32_t)1 << bit) - 1 <= UINT32_MAX - EXHAUSTIVE_TEST_ORDER); -#endif } static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b32, int *overflow) { From cf25c86d05bbaacd37f42a190e39eab4863cdaf7 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 4 Aug 2023 02:40:08 +0200 Subject: [PATCH 293/557] introduce and use SECP256K1_{FE,GE,GEJ}_VERIFY macros By providing an uppercase variant of these verification functions, it is better visible that it is test code and surrounding `#ifdef VERIFY` blocks can be removed (if there is no other code around that could remain in production mode), as they don't serve their purpose any more. At some places intentional blank lines are inserted for grouping and better readadbility. --- src/field.h | 2 + src/field_impl.h | 160 ++++++++++++++++++----------- src/group.h | 2 + src/group_impl.h | 164 +++++++++++++++--------------- src/modules/ellswift/tests_impl.h | 2 +- 5 files changed, 184 insertions(+), 146 deletions(-) diff --git a/src/field.h b/src/field.h index ccd228e1ae..df7411131b 100644 --- a/src/field.h +++ b/src/field.h @@ -345,8 +345,10 @@ static int secp256k1_fe_is_square_var(const secp256k1_fe *a); /** Check invariants on a field element (no-op unless VERIFY is enabled). */ static void secp256k1_fe_verify(const secp256k1_fe *a); +#define SECP256K1_FE_VERIFY(a) secp256k1_fe_verify(a) /** Check that magnitude of a is at most m (no-op unless VERIFY is enabled). */ static void secp256k1_fe_verify_magnitude(const secp256k1_fe *a, int m); +#define SECP256K1_FE_VERIFY_MAGNITUDE(a, m) secp256k1_fe_verify_magnitude(a, m) #endif /* SECP256K1_FIELD_H */ diff --git a/src/field_impl.h b/src/field_impl.h index 80d34b9ef2..989e9cdb2f 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -20,12 +20,11 @@ SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { secp256k1_fe na; -#ifdef VERIFY - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); - secp256k1_fe_verify_magnitude(a, 1); - secp256k1_fe_verify_magnitude(b, 31); -#endif + SECP256K1_FE_VERIFY(a); + SECP256K1_FE_VERIFY(b); + SECP256K1_FE_VERIFY_MAGNITUDE(a, 1); + SECP256K1_FE_VERIFY_MAGNITUDE(b, 31); + secp256k1_fe_negate(&na, a, 1); secp256k1_fe_add(&na, b); return secp256k1_fe_normalizes_to_zero(&na); @@ -44,11 +43,9 @@ static int secp256k1_fe_sqrt(secp256k1_fe * SECP256K1_RESTRICT r, const secp256k secp256k1_fe x2, x3, x6, x9, x11, x22, x44, x88, x176, x220, x223, t1; int j, ret; -#ifdef VERIFY VERIFY_CHECK(r != a); - secp256k1_fe_verify(a); - secp256k1_fe_verify_magnitude(a, 8); -#endif + SECP256K1_FE_VERIFY(a); + SECP256K1_FE_VERIFY_MAGNITUDE(a, 8); /** The binary representation of (p + 1)/4 has 3 blocks of 1s, with lengths in * { 2, 22, 223 }. Use an addition chain to calculate 2^n - 1 for each block: @@ -151,11 +148,11 @@ static void secp256k1_fe_verify_magnitude(const secp256k1_fe *a, int m) { (void) static void secp256k1_fe_impl_verify(const secp256k1_fe *a); static void secp256k1_fe_verify(const secp256k1_fe *a) { /* Magnitude between 0 and 32. */ - secp256k1_fe_verify_magnitude(a, 32); + SECP256K1_FE_VERIFY_MAGNITUDE(a, 32); /* Normalized is 0 or 1. */ VERIFY_CHECK((a->normalized == 0) || (a->normalized == 1)); /* If normalized, magnitude must be 0 or 1. */ - if (a->normalized) secp256k1_fe_verify_magnitude(a, 1); + if (a->normalized) SECP256K1_FE_VERIFY_MAGNITUDE(a, 1); /* Invoke implementation-specific checks. */ secp256k1_fe_impl_verify(a); } @@ -168,59 +165,71 @@ static void secp256k1_fe_verify_magnitude(const secp256k1_fe *a, int m) { static void secp256k1_fe_impl_normalize(secp256k1_fe *r); SECP256K1_INLINE static void secp256k1_fe_normalize(secp256k1_fe *r) { - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); + secp256k1_fe_impl_normalize(r); r->magnitude = 1; r->normalized = 1; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_normalize_weak(secp256k1_fe *r); SECP256K1_INLINE static void secp256k1_fe_normalize_weak(secp256k1_fe *r) { - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); + secp256k1_fe_impl_normalize_weak(r); r->magnitude = 1; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_normalize_var(secp256k1_fe *r); SECP256K1_INLINE static void secp256k1_fe_normalize_var(secp256k1_fe *r) { - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); + secp256k1_fe_impl_normalize_var(r); r->magnitude = 1; r->normalized = 1; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static int secp256k1_fe_impl_normalizes_to_zero(const secp256k1_fe *r); SECP256K1_INLINE static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r) { - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); + return secp256k1_fe_impl_normalizes_to_zero(r); } static int secp256k1_fe_impl_normalizes_to_zero_var(const secp256k1_fe *r); SECP256K1_INLINE static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r) { - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); + return secp256k1_fe_impl_normalizes_to_zero_var(r); } static void secp256k1_fe_impl_set_int(secp256k1_fe *r, int a); SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe *r, int a) { VERIFY_CHECK(0 <= a && a <= 0x7FFF); + secp256k1_fe_impl_set_int(r, a); r->magnitude = (a != 0); r->normalized = 1; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_add_int(secp256k1_fe *r, int a); SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { VERIFY_CHECK(0 <= a && a <= 0x7FFF); - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); + secp256k1_fe_impl_add_int(r, a); r->magnitude += 1; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_clear(secp256k1_fe *a); @@ -228,29 +237,33 @@ SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { a->magnitude = 0; a->normalized = 1; secp256k1_fe_impl_clear(a); - secp256k1_fe_verify(a); + + SECP256K1_FE_VERIFY(a); } static int secp256k1_fe_impl_is_zero(const secp256k1_fe *a); SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { - secp256k1_fe_verify(a); + SECP256K1_FE_VERIFY(a); VERIFY_CHECK(a->normalized); + return secp256k1_fe_impl_is_zero(a); } static int secp256k1_fe_impl_is_odd(const secp256k1_fe *a); SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe *a) { - secp256k1_fe_verify(a); + SECP256K1_FE_VERIFY(a); VERIFY_CHECK(a->normalized); + return secp256k1_fe_impl_is_odd(a); } static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); SECP256K1_INLINE static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); + SECP256K1_FE_VERIFY(a); + SECP256K1_FE_VERIFY(b); VERIFY_CHECK(a->normalized); VERIFY_CHECK(b->normalized); + return secp256k1_fe_impl_cmp_var(a, b); } @@ -259,7 +272,8 @@ SECP256K1_INLINE static void secp256k1_fe_set_b32_mod(secp256k1_fe *r, const uns secp256k1_fe_impl_set_b32_mod(r, a); r->magnitude = 1; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static int secp256k1_fe_impl_set_b32_limit(secp256k1_fe *r, const unsigned char *a); @@ -267,7 +281,7 @@ SECP256K1_INLINE static int secp256k1_fe_set_b32_limit(secp256k1_fe *r, const un if (secp256k1_fe_impl_set_b32_limit(r, a)) { r->magnitude = 1; r->normalized = 1; - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); return 1; } else { /* Mark the output field element as invalid. */ @@ -278,83 +292,97 @@ SECP256K1_INLINE static int secp256k1_fe_set_b32_limit(secp256k1_fe *r, const un static void secp256k1_fe_impl_get_b32(unsigned char *r, const secp256k1_fe *a); SECP256K1_INLINE static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a) { - secp256k1_fe_verify(a); + SECP256K1_FE_VERIFY(a); VERIFY_CHECK(a->normalized); + secp256k1_fe_impl_get_b32(r, a); } static void secp256k1_fe_impl_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m); SECP256K1_INLINE static void secp256k1_fe_negate_unchecked(secp256k1_fe *r, const secp256k1_fe *a, int m) { - secp256k1_fe_verify(a); + SECP256K1_FE_VERIFY(a); VERIFY_CHECK(m >= 0 && m <= 31); - secp256k1_fe_verify_magnitude(a, m); + SECP256K1_FE_VERIFY_MAGNITUDE(a, m); + secp256k1_fe_impl_negate_unchecked(r, a, m); r->magnitude = m + 1; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_mul_int_unchecked(secp256k1_fe *r, int a); SECP256K1_INLINE static void secp256k1_fe_mul_int_unchecked(secp256k1_fe *r, int a) { - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); + VERIFY_CHECK(a >= 0 && a <= 32); VERIFY_CHECK(a*r->magnitude <= 32); secp256k1_fe_impl_mul_int_unchecked(r, a); r->magnitude *= a; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_add(secp256k1_fe *r, const secp256k1_fe *a); SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a) { - secp256k1_fe_verify(r); - secp256k1_fe_verify(a); + SECP256K1_FE_VERIFY(r); + SECP256K1_FE_VERIFY(a); VERIFY_CHECK(r->magnitude + a->magnitude <= 32); + secp256k1_fe_impl_add(r, a); r->magnitude += a->magnitude; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b); SECP256K1_INLINE static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b) { - secp256k1_fe_verify(a); - secp256k1_fe_verify(b); - secp256k1_fe_verify_magnitude(a, 8); - secp256k1_fe_verify_magnitude(b, 8); + SECP256K1_FE_VERIFY(a); + SECP256K1_FE_VERIFY(b); + SECP256K1_FE_VERIFY_MAGNITUDE(a, 8); + SECP256K1_FE_VERIFY_MAGNITUDE(b, 8); VERIFY_CHECK(r != b); VERIFY_CHECK(a != b); + secp256k1_fe_impl_mul(r, a, b); r->magnitude = 1; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_sqr(secp256k1_fe *r, const secp256k1_fe *a); SECP256K1_INLINE static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a) { - secp256k1_fe_verify(a); - secp256k1_fe_verify_magnitude(a, 8); + SECP256K1_FE_VERIFY(a); + SECP256K1_FE_VERIFY_MAGNITUDE(a, 8); + secp256k1_fe_impl_sqr(r, a); r->magnitude = 1; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag); SECP256K1_INLINE static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag) { VERIFY_CHECK(flag == 0 || flag == 1); - secp256k1_fe_verify(a); - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(a); + SECP256K1_FE_VERIFY(r); + secp256k1_fe_impl_cmov(r, a, flag); if (a->magnitude > r->magnitude) r->magnitude = a->magnitude; if (!a->normalized) r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a); SECP256K1_INLINE static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a) { - secp256k1_fe_verify(a); + SECP256K1_FE_VERIFY(a); VERIFY_CHECK(a->normalized); + secp256k1_fe_impl_to_storage(r, a); } @@ -363,36 +391,42 @@ SECP256K1_INLINE static void secp256k1_fe_from_storage(secp256k1_fe *r, const se secp256k1_fe_impl_from_storage(r, a); r->magnitude = 1; r->normalized = 1; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_inv(secp256k1_fe *r, const secp256k1_fe *x); SECP256K1_INLINE static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *x) { int input_is_zero = secp256k1_fe_normalizes_to_zero(x); - secp256k1_fe_verify(x); + SECP256K1_FE_VERIFY(x); + secp256k1_fe_impl_inv(r, x); r->magnitude = x->magnitude > 0; r->normalized = 1; + VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == input_is_zero); - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_inv_var(secp256k1_fe *r, const secp256k1_fe *x); SECP256K1_INLINE static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *x) { int input_is_zero = secp256k1_fe_normalizes_to_zero(x); - secp256k1_fe_verify(x); + SECP256K1_FE_VERIFY(x); + secp256k1_fe_impl_inv_var(r, x); r->magnitude = x->magnitude > 0; r->normalized = 1; + VERIFY_CHECK(secp256k1_fe_normalizes_to_zero(r) == input_is_zero); - secp256k1_fe_verify(r); + SECP256K1_FE_VERIFY(r); } static int secp256k1_fe_impl_is_square_var(const secp256k1_fe *x); SECP256K1_INLINE static int secp256k1_fe_is_square_var(const secp256k1_fe *x) { int ret; secp256k1_fe tmp = *x, sqrt; - secp256k1_fe_verify(x); + SECP256K1_FE_VERIFY(x); + ret = secp256k1_fe_impl_is_square_var(x); secp256k1_fe_normalize_weak(&tmp); VERIFY_CHECK(ret == secp256k1_fe_sqrt(&sqrt, &tmp)); @@ -403,20 +437,24 @@ static void secp256k1_fe_impl_get_bounds(secp256k1_fe* r, int m); SECP256K1_INLINE static void secp256k1_fe_get_bounds(secp256k1_fe* r, int m) { VERIFY_CHECK(m >= 0); VERIFY_CHECK(m <= 32); + secp256k1_fe_impl_get_bounds(r, m); r->magnitude = m; r->normalized = (m == 0); - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } static void secp256k1_fe_impl_half(secp256k1_fe *r); SECP256K1_INLINE static void secp256k1_fe_half(secp256k1_fe *r) { - secp256k1_fe_verify(r); - secp256k1_fe_verify_magnitude(r, 31); + SECP256K1_FE_VERIFY(r); + SECP256K1_FE_VERIFY_MAGNITUDE(r, 31); + secp256k1_fe_impl_half(r); r->magnitude = (r->magnitude >> 1) + 1; r->normalized = 0; - secp256k1_fe_verify(r); + + SECP256K1_FE_VERIFY(r); } #endif /* defined(VERIFY) */ diff --git a/src/group.h b/src/group.h index 86eb9e1f82..0f5161fbf2 100644 --- a/src/group.h +++ b/src/group.h @@ -181,8 +181,10 @@ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge); /** Check invariants on an affine group element (no-op unless VERIFY is enabled). */ static void secp256k1_ge_verify(const secp256k1_ge *a); +#define SECP256K1_GE_VERIFY(a) secp256k1_ge_verify(a) /** Check invariants on a Jacobian group element (no-op unless VERIFY is enabled). */ static void secp256k1_gej_verify(const secp256k1_gej *a); +#define SECP256K1_GEJ_VERIFY(a) secp256k1_gej_verify(a) #endif /* SECP256K1_GROUP_H */ diff --git a/src/group_impl.h b/src/group_impl.h index dc76ac179e..cd5f0b01f9 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -74,26 +74,22 @@ static const secp256k1_ge secp256k1_ge_const_g = SECP256K1_G; /* End of section generated by sage/gen_exhaustive_groups.sage. */ static void secp256k1_ge_verify(const secp256k1_ge *a) { -#ifdef VERIFY - secp256k1_fe_verify(&a->x); - secp256k1_fe_verify(&a->y); - secp256k1_fe_verify_magnitude(&a->x, SECP256K1_GE_X_MAGNITUDE_MAX); - secp256k1_fe_verify_magnitude(&a->y, SECP256K1_GE_Y_MAGNITUDE_MAX); + SECP256K1_FE_VERIFY(&a->x); + SECP256K1_FE_VERIFY(&a->y); + SECP256K1_FE_VERIFY_MAGNITUDE(&a->x, SECP256K1_GE_X_MAGNITUDE_MAX); + SECP256K1_FE_VERIFY_MAGNITUDE(&a->y, SECP256K1_GE_Y_MAGNITUDE_MAX); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); -#endif (void)a; } static void secp256k1_gej_verify(const secp256k1_gej *a) { -#ifdef VERIFY - secp256k1_fe_verify(&a->x); - secp256k1_fe_verify(&a->y); - secp256k1_fe_verify(&a->z); - secp256k1_fe_verify_magnitude(&a->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); - secp256k1_fe_verify_magnitude(&a->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); - secp256k1_fe_verify_magnitude(&a->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); + SECP256K1_FE_VERIFY(&a->x); + SECP256K1_FE_VERIFY(&a->y); + SECP256K1_FE_VERIFY(&a->z); + SECP256K1_FE_VERIFY_MAGNITUDE(&a->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); + SECP256K1_FE_VERIFY_MAGNITUDE(&a->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); + SECP256K1_FE_VERIFY_MAGNITUDE(&a->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); VERIFY_CHECK(a->infinity == 0 || a->infinity == 1); -#endif (void)a; } @@ -101,8 +97,8 @@ static void secp256k1_gej_verify(const secp256k1_gej *a) { static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi) { secp256k1_fe zi2; secp256k1_fe zi3; - secp256k1_gej_verify(a); - secp256k1_fe_verify(zi); + SECP256K1_GEJ_VERIFY(a); + SECP256K1_FE_VERIFY(zi); VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&zi2, zi); @@ -111,15 +107,15 @@ static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, c secp256k1_fe_mul(&r->y, &a->y, &zi3); r->infinity = a->infinity; - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } /* Set r to the affine coordinates of Jacobian point (a.x, a.y, 1/zi). */ static void secp256k1_ge_set_ge_zinv(secp256k1_ge *r, const secp256k1_ge *a, const secp256k1_fe *zi) { secp256k1_fe zi2; secp256k1_fe zi3; - secp256k1_ge_verify(a); - secp256k1_fe_verify(zi); + SECP256K1_GE_VERIFY(a); + SECP256K1_FE_VERIFY(zi); VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&zi2, zi); @@ -128,39 +124,39 @@ static void secp256k1_ge_set_ge_zinv(secp256k1_ge *r, const secp256k1_ge *a, con secp256k1_fe_mul(&r->y, &a->y, &zi3); r->infinity = a->infinity; - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } static void secp256k1_ge_set_xy(secp256k1_ge *r, const secp256k1_fe *x, const secp256k1_fe *y) { - secp256k1_fe_verify(x); - secp256k1_fe_verify(y); + SECP256K1_FE_VERIFY(x); + SECP256K1_FE_VERIFY(y); r->infinity = 0; r->x = *x; r->y = *y; - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } static int secp256k1_ge_is_infinity(const secp256k1_ge *a) { - secp256k1_ge_verify(a); + SECP256K1_GE_VERIFY(a); return a->infinity; } static void secp256k1_ge_neg(secp256k1_ge *r, const secp256k1_ge *a) { - secp256k1_ge_verify(a); + SECP256K1_GE_VERIFY(a); *r = *a; secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(a); r->infinity = a->infinity; secp256k1_fe_inv(&a->z, &a->z); @@ -172,13 +168,13 @@ static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a) { r->x = a->x; r->y = a->y; - secp256k1_gej_verify(a); - secp256k1_ge_verify(r); + SECP256K1_GEJ_VERIFY(a); + SECP256K1_GE_VERIFY(r); } static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe z2, z3; - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(a); if (secp256k1_gej_is_infinity(a)) { secp256k1_ge_set_infinity(r); @@ -193,8 +189,8 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { secp256k1_fe_set_int(&a->z, 1); secp256k1_ge_set_xy(r, &a->x, &a->y); - secp256k1_gej_verify(a); - secp256k1_ge_verify(r); + SECP256K1_GEJ_VERIFY(a); + SECP256K1_GE_VERIFY(r); } static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len) { @@ -203,7 +199,7 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a size_t last_i = SIZE_MAX; #ifdef VERIFY for (i = 0; i < len; i++) { - secp256k1_gej_verify(&a[i]); + SECP256K1_GEJ_VERIFY(&a[i]); } #endif @@ -245,7 +241,7 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a #ifdef VERIFY for (i = 0; i < len; i++) { - secp256k1_ge_verify(&r[i]); + SECP256K1_GE_VERIFY(&r[i]); } #endif } @@ -255,8 +251,8 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se secp256k1_fe zs; #ifdef VERIFY for (i = 0; i < len; i++) { - secp256k1_ge_verify(&a[i]); - secp256k1_fe_verify(&zr[i]); + SECP256K1_GE_VERIFY(&a[i]); + SECP256K1_FE_VERIFY(&zr[i]); } #endif @@ -278,7 +274,7 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se #ifdef VERIFY for (i = 0; i < len; i++) { - secp256k1_ge_verify(&a[i]); + SECP256K1_GE_VERIFY(&a[i]); } #endif } @@ -289,7 +285,7 @@ static void secp256k1_gej_set_infinity(secp256k1_gej *r) { secp256k1_fe_clear(&r->y); secp256k1_fe_clear(&r->z); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static void secp256k1_ge_set_infinity(secp256k1_ge *r) { @@ -297,7 +293,7 @@ static void secp256k1_ge_set_infinity(secp256k1_ge *r) { secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } static void secp256k1_gej_clear(secp256k1_gej *r) { @@ -306,7 +302,7 @@ static void secp256k1_gej_clear(secp256k1_gej *r) { secp256k1_fe_clear(&r->y); secp256k1_fe_clear(&r->z); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static void secp256k1_ge_clear(secp256k1_ge *r) { @@ -314,13 +310,13 @@ static void secp256k1_ge_clear(secp256k1_ge *r) { secp256k1_fe_clear(&r->x); secp256k1_fe_clear(&r->y); - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd) { secp256k1_fe x2, x3; int ret; - secp256k1_fe_verify(x); + SECP256K1_FE_VERIFY(x); r->x = *x; secp256k1_fe_sqr(&x2, x); @@ -333,25 +329,25 @@ static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int o secp256k1_fe_negate(&r->y, &r->y, 1); } - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); return ret; } static void secp256k1_gej_set_ge(secp256k1_gej *r, const secp256k1_ge *a) { - secp256k1_ge_verify(a); + SECP256K1_GE_VERIFY(a); r->infinity = a->infinity; r->x = a->x; r->y = a->y; secp256k1_fe_set_int(&r->z, 1); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) { secp256k1_gej tmp; - secp256k1_gej_verify(b); - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(b); + SECP256K1_GEJ_VERIFY(a); secp256k1_gej_neg(&tmp, a); secp256k1_gej_add_var(&tmp, &tmp, b, NULL); @@ -360,8 +356,8 @@ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) { secp256k1_fe r; - secp256k1_fe_verify(x); - secp256k1_gej_verify(a); + SECP256K1_FE_VERIFY(x); + SECP256K1_GEJ_VERIFY(a); VERIFY_CHECK(!a->infinity); secp256k1_fe_sqr(&r, &a->z); secp256k1_fe_mul(&r, &r, x); @@ -369,7 +365,7 @@ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) } static void secp256k1_gej_neg(secp256k1_gej *r, const secp256k1_gej *a) { - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(a); r->infinity = a->infinity; r->x = a->x; @@ -378,18 +374,18 @@ static void secp256k1_gej_neg(secp256k1_gej *r, const secp256k1_gej *a) { secp256k1_fe_normalize_weak(&r->y); secp256k1_fe_negate(&r->y, &r->y, 1); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static int secp256k1_gej_is_infinity(const secp256k1_gej *a) { - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(a); return a->infinity; } static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { secp256k1_fe y2, x3; - secp256k1_ge_verify(a); + SECP256K1_GE_VERIFY(a); if (a->infinity) { return 0; @@ -404,7 +400,7 @@ static int secp256k1_ge_is_valid_var(const secp256k1_ge *a) { static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp256k1_gej *a) { /* Operations: 3 mul, 4 sqr, 8 add/half/mul_int/negate */ secp256k1_fe l, s, t; - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(a); r->infinity = a->infinity; @@ -433,11 +429,11 @@ static SECP256K1_INLINE void secp256k1_gej_double(secp256k1_gej *r, const secp25 secp256k1_fe_add(&r->y, &s); /* Y3 = L*(X3 + T) + S^2 (2) */ secp256k1_fe_negate(&r->y, &r->y, 2); /* Y3 = -(L*(X3 + T) + S^2) (3) */ - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe *rzr) { - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(a); /** For secp256k1, 2Q is infinity if and only if Q is infinity. This is because if 2Q = infinity, * Q must equal -Q, or that Q.y == -(Q.y), or Q.y is 0. For a point on y^2 = x^3 + 7 to have @@ -464,14 +460,14 @@ static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, s secp256k1_gej_double(r, a); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_gej *b, secp256k1_fe *rzr) { /* 12 mul, 4 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z22, z12, u1, u2, s1, s2, h, i, h2, h3, t; - secp256k1_gej_verify(a); - secp256k1_gej_verify(b); + SECP256K1_GEJ_VERIFY(a); + SECP256K1_GEJ_VERIFY(b); if (a->infinity) { VERIFY_CHECK(rzr == NULL); @@ -528,14 +524,14 @@ static void secp256k1_gej_add_var(secp256k1_gej *r, const secp256k1_gej *a, cons secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, secp256k1_fe *rzr) { /* Operations: 8 mul, 3 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe z12, u1, u2, s1, s2, h, i, h2, h3, t; - secp256k1_gej_verify(a); - secp256k1_ge_verify(b); + SECP256K1_GEJ_VERIFY(a); + SECP256K1_GE_VERIFY(b); if (a->infinity) { VERIFY_CHECK(rzr == NULL); @@ -590,16 +586,16 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej *r, const secp256k1_gej *a, c secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); - secp256k1_gej_verify(r); - if (rzr != NULL) secp256k1_fe_verify(rzr); + SECP256K1_GEJ_VERIFY(r); + if (rzr != NULL) SECP256K1_FE_VERIFY(rzr); } static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_ge *b, const secp256k1_fe *bzinv) { /* Operations: 9 mul, 3 sqr, 11 add/negate/normalizes_to_zero (ignoring special cases) */ secp256k1_fe az, z12, u1, u2, s1, s2, h, i, h2, h3, t; - secp256k1_gej_verify(a); - secp256k1_ge_verify(b); - secp256k1_fe_verify(bzinv); + SECP256K1_GEJ_VERIFY(a); + SECP256K1_GE_VERIFY(b); + SECP256K1_FE_VERIFY(bzinv); if (a->infinity) { secp256k1_fe bzinv2, bzinv3; @@ -609,7 +605,7 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe_mul(&r->x, &b->x, &bzinv2); secp256k1_fe_mul(&r->y, &b->y, &bzinv3); secp256k1_fe_set_int(&r->z, 1); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); return; } if (b->infinity) { @@ -661,7 +657,7 @@ static void secp256k1_gej_add_zinv_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe_mul(&h3, &h3, &s1); secp256k1_fe_add(&r->y, &h3); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } @@ -670,8 +666,8 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_fe zz, u1, u2, s1, s2, t, tt, m, n, q, rr; secp256k1_fe m_alt, rr_alt; int degenerate; - secp256k1_gej_verify(a); - secp256k1_ge_verify(b); + SECP256K1_GEJ_VERIFY(a); + SECP256K1_GE_VERIFY(b); VERIFY_CHECK(!b->infinity); /* In: @@ -799,14 +795,14 @@ static void secp256k1_gej_add_ge(secp256k1_gej *r, const secp256k1_gej *a, const * Then r->infinity = ((y1 + y2)Z == 0) = (y1 == -y2) = false. */ r->infinity = secp256k1_fe_normalizes_to_zero(&r->z); - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *s) { /* Operations: 4 mul, 1 sqr */ secp256k1_fe zz; - secp256k1_gej_verify(r); - secp256k1_fe_verify(s); + SECP256K1_GEJ_VERIFY(r); + SECP256K1_FE_VERIFY(s); VERIFY_CHECK(!secp256k1_fe_normalizes_to_zero_var(s)); secp256k1_fe_sqr(&zz, s); @@ -815,12 +811,12 @@ static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *s) { secp256k1_fe_mul(&r->y, &r->y, s); /* r->y *= s^3 */ secp256k1_fe_mul(&r->z, &r->z, s); /* r->z *= s */ - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static void secp256k1_ge_to_storage(secp256k1_ge_storage *r, const secp256k1_ge *a) { secp256k1_fe x, y; - secp256k1_ge_verify(a); + SECP256K1_GE_VERIFY(a); VERIFY_CHECK(!a->infinity); x = a->x; @@ -836,19 +832,19 @@ static void secp256k1_ge_from_storage(secp256k1_ge *r, const secp256k1_ge_storag secp256k1_fe_from_storage(&r->y, &a->y); r->infinity = 0; - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } static SECP256K1_INLINE void secp256k1_gej_cmov(secp256k1_gej *r, const secp256k1_gej *a, int flag) { - secp256k1_gej_verify(r); - secp256k1_gej_verify(a); + SECP256K1_GEJ_VERIFY(r); + SECP256K1_GEJ_VERIFY(a); secp256k1_fe_cmov(&r->x, &a->x, flag); secp256k1_fe_cmov(&r->y, &a->y, flag); secp256k1_fe_cmov(&r->z, &a->z, flag); r->infinity ^= (r->infinity ^ a->infinity) & flag; - secp256k1_gej_verify(r); + SECP256K1_GEJ_VERIFY(r); } static SECP256K1_INLINE void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, const secp256k1_ge_storage *a, int flag) { @@ -857,19 +853,19 @@ static SECP256K1_INLINE void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, } static void secp256k1_ge_mul_lambda(secp256k1_ge *r, const secp256k1_ge *a) { - secp256k1_ge_verify(a); + SECP256K1_GE_VERIFY(a); *r = *a; secp256k1_fe_mul(&r->x, &r->x, &secp256k1_const_beta); - secp256k1_ge_verify(r); + SECP256K1_GE_VERIFY(r); } static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { #ifdef EXHAUSTIVE_TEST_ORDER secp256k1_gej out; int i; - secp256k1_ge_verify(ge); + SECP256K1_GE_VERIFY(ge); /* A very simple EC multiplication ladder that avoids a dependency on ecmult. */ secp256k1_gej_set_infinity(&out); @@ -881,7 +877,7 @@ static int secp256k1_ge_is_in_correct_subgroup(const secp256k1_ge* ge) { } return secp256k1_gej_is_infinity(&out); #else - secp256k1_ge_verify(ge); + SECP256K1_GE_VERIFY(ge); (void)ge; /* The real secp256k1 group has cofactor 1, so the subgroup is the entire curve. */ diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index 47f443d980..b478e39326 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -285,7 +285,7 @@ void run_ellswift_tests(void) { ret = secp256k1_ellswift_xdh(CTX, share32, ell64, ell64, sec32, i & 1, &ellswift_xdh_hash_x32, NULL); CHECK(ret); (void)secp256k1_fe_set_b32_limit(&share_x, share32); /* no overflow is possible */ - secp256k1_fe_verify(&share_x); + SECP256K1_FE_VERIFY(&share_x); /* Compute seckey*pubkey directly. */ secp256k1_ecmult(&resj, &decj, &sec, NULL); secp256k1_ge_set_gej(&res, &resj); From a0fb68a2e7db14c6b27f92217bf2307681b6b6ea Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 18 Aug 2023 14:31:55 +0200 Subject: [PATCH 294/557] introduce and use SECP256K1_SCALAR_VERIFY macro By providing an uppercase variant of these verification functions, it is better visible that it is test code. --- src/scalar.h | 1 + src/scalar_4x64_impl.h | 80 ++++++++++++++++++++-------------------- src/scalar_8x32_impl.h | 83 +++++++++++++++++++++--------------------- src/scalar_impl.h | 14 +++---- src/scalar_low_impl.h | 68 +++++++++++++++++----------------- 5 files changed, 123 insertions(+), 123 deletions(-) diff --git a/src/scalar.h b/src/scalar.h index 00a390bc5b..98b1287bb5 100644 --- a/src/scalar.h +++ b/src/scalar.h @@ -100,5 +100,6 @@ static void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a /** Check invariants on a scalar (no-op unless VERIFY is enabled). */ static void secp256k1_scalar_verify(const secp256k1_scalar *r); +#define SECP256K1_SCALAR_VERIFY(r) secp256k1_scalar_verify(r) #endif /* SECP256K1_SCALAR_H */ diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 0b6e558c14..7b9c542f07 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -42,18 +42,18 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig r->d[2] = 0; r->d[3] = 0; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK((offset + count - 1) >> 6 == offset >> 6); return (a->d[offset >> 6] >> (offset & 0x3F)) & ((((uint64_t)1) << count) - 1); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK(count < 32); VERIFY_CHECK(offset + count <= 256); @@ -93,15 +93,15 @@ SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar *r, unsigne secp256k1_u128_accum_u64(&t, r->d[3]); r->d[3] = secp256k1_u128_to_u64(&t); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return overflow; } static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { int overflow; secp256k1_uint128 t; - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); secp256k1_u128_from_u64(&t, a->d[0]); secp256k1_u128_accum_u64(&t, b->d[0]); @@ -119,14 +119,14 @@ static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, VERIFY_CHECK(overflow == 0 || overflow == 1); secp256k1_scalar_reduce(r, overflow); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return overflow; } static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { secp256k1_uint128 t; volatile int vflag = flag; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(bit < 256); bit += ((uint32_t) vflag - 1) & 0x100; /* forcing (bit >> 6) > 3 makes this a noop */ @@ -143,7 +143,7 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int secp256k1_u128_accum_u64(&t, ((uint64_t)((bit >> 6) == 3)) << (bit & 0x3F)); r->d[3] = secp256k1_u128_to_u64(&t); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(secp256k1_u128_hi_u64(&t) == 0); } @@ -158,11 +158,11 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b *overflow = over; } - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); secp256k1_write_be64(&bin[0], a->d[3]); secp256k1_write_be64(&bin[8], a->d[2]); @@ -171,7 +171,7 @@ static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return (a->d[0] | a->d[1] | a->d[2] | a->d[3]) == 0; } @@ -179,7 +179,7 @@ SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a) { uint64_t nonzero = 0xFFFFFFFFFFFFFFFFULL * (secp256k1_scalar_is_zero(a) == 0); secp256k1_uint128 t; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); secp256k1_u128_from_u64(&t, ~a->d[0]); secp256k1_u128_accum_u64(&t, SECP256K1_N_0 + 1); @@ -194,7 +194,7 @@ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar secp256k1_u128_accum_u64(&t, SECP256K1_N_3); r->d[3] = secp256k1_u128_to_u64(&t) & nonzero; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a) { @@ -214,7 +214,7 @@ static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a */ uint64_t mask = -(uint64_t)(a->d[0] & 1U); secp256k1_uint128 t; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); secp256k1_u128_from_u64(&t, (a->d[0] >> 1) | (a->d[1] << 63)); secp256k1_u128_accum_u64(&t, (SECP256K1_N_H_0 + 1U) & mask); @@ -234,12 +234,12 @@ static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a secp256k1_u128_rshift(&t, 64); VERIFY_CHECK(secp256k1_u128_to_u64(&t) == 0); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); #endif } SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return ((a->d[0] ^ 1) | a->d[1] | a->d[2] | a->d[3]) == 0; } @@ -247,7 +247,7 @@ SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { int yes = 0; int no = 0; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); no |= (a->d[3] < SECP256K1_N_H_3); yes |= (a->d[3] > SECP256K1_N_H_3) & ~no; @@ -265,7 +265,7 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { uint64_t mask = -vflag; uint64_t nonzero = (secp256k1_scalar_is_zero(r) != 0) - 1; secp256k1_uint128 t; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); secp256k1_u128_from_u64(&t, r->d[0] ^ mask); secp256k1_u128_accum_u64(&t, (SECP256K1_N_0 + 1) & mask); @@ -280,7 +280,7 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { secp256k1_u128_accum_u64(&t, SECP256K1_N_3 & mask); r->d[3] = secp256k1_u128_to_u64(&t) & nonzero; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return 2 * (mask == 0) - 1; } @@ -839,17 +839,17 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { uint64_t l[8]; - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); secp256k1_scalar_mul_512(l, a, b); secp256k1_scalar_reduce_512(r, l); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) { - secp256k1_scalar_verify(k); + SECP256K1_SCALAR_VERIFY(k); r1->d[0] = k->d[0]; r1->d[1] = k->d[1]; @@ -860,13 +860,13 @@ static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r r2->d[2] = 0; r2->d[3] = 0; - secp256k1_scalar_verify(r1); - secp256k1_scalar_verify(r2); + SECP256K1_SCALAR_VERIFY(r1); + SECP256K1_SCALAR_VERIFY(r2); } SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) { - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3])) == 0; } @@ -876,8 +876,8 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, unsigned int shiftlimbs; unsigned int shiftlow; unsigned int shifthigh; - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); VERIFY_CHECK(shift >= 256); secp256k1_scalar_mul_512(l, a, b); @@ -890,13 +890,13 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, r->d[3] = shift < 320 ? (l[3 + shiftlimbs] >> shiftlow) : 0; secp256k1_scalar_cadd_bit(r, 0, (l[(shift - 1) >> 6] >> ((shift - 1) & 0x3f)) & 1); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint64_t mask0, mask1; volatile int vflag = flag; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); SECP256K1_CHECKMEM_CHECK_VERIFY(r->d, sizeof(r->d)); mask0 = vflag + ~((uint64_t)0); @@ -906,7 +906,7 @@ static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const se r->d[2] = (r->d[2] & mask0) | (a->d[2] & mask1); r->d[3] = (r->d[3] & mask0) | (a->d[3] & mask1); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_from_signed62(secp256k1_scalar *r, const secp256k1_modinv64_signed62 *a) { @@ -926,13 +926,13 @@ static void secp256k1_scalar_from_signed62(secp256k1_scalar *r, const secp256k1_ r->d[2] = a2 >> 4 | a3 << 58; r->d[3] = a3 >> 6 | a4 << 56; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_to_signed62(secp256k1_modinv64_signed62 *r, const secp256k1_scalar *a) { const uint64_t M62 = UINT64_MAX >> 2; const uint64_t a0 = a->d[0], a1 = a->d[1], a2 = a->d[2], a3 = a->d[3]; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); r->v[0] = a0 & M62; r->v[1] = (a0 >> 62 | a1 << 2) & M62; @@ -951,13 +951,13 @@ static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif - secp256k1_scalar_verify(x); + SECP256K1_SCALAR_VERIFY(x); secp256k1_scalar_to_signed62(&s, x); secp256k1_modinv64(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed62(r, &s); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); } @@ -966,18 +966,18 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif - secp256k1_scalar_verify(x); + SECP256K1_SCALAR_VERIFY(x); secp256k1_scalar_to_signed62(&s, x); secp256k1_modinv64_var(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed62(r, &s); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); } SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return !(a->d[0] & 1); } diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index faa62089a5..58ae51bc02 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -59,18 +59,18 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig r->d[6] = 0; r->d[7] = 0; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK((offset + count - 1) >> 5 == offset >> 5); return (a->d[offset >> 5] >> (offset & 0x1F)) & ((1 << count) - 1); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK(count < 32); VERIFY_CHECK(offset + count <= 256); @@ -121,15 +121,15 @@ SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar *r, uint32_ t += (uint64_t)r->d[7]; r->d[7] = t & 0xFFFFFFFFUL; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return overflow; } static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { int overflow; uint64_t t = (uint64_t)a->d[0] + b->d[0]; - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); r->d[0] = t & 0xFFFFFFFFULL; t >>= 32; t += (uint64_t)a->d[1] + b->d[1]; @@ -150,14 +150,14 @@ static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, VERIFY_CHECK(overflow == 0 || overflow == 1); secp256k1_scalar_reduce(r, overflow); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return overflow; } static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { uint64_t t; volatile int vflag = flag; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(bit < 256); bit += ((uint32_t) vflag - 1) & 0x100; /* forcing (bit >> 5) > 7 makes this a noop */ @@ -178,7 +178,7 @@ static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int t += (uint64_t)r->d[7] + (((uint32_t)((bit >> 5) == 7)) << (bit & 0x1F)); r->d[7] = t & 0xFFFFFFFFULL; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK((t >> 32) == 0); } @@ -197,11 +197,11 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b *overflow = over; } - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); secp256k1_write_be32(&bin[0], a->d[7]); secp256k1_write_be32(&bin[4], a->d[6]); @@ -214,7 +214,7 @@ static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return (a->d[0] | a->d[1] | a->d[2] | a->d[3] | a->d[4] | a->d[5] | a->d[6] | a->d[7]) == 0; } @@ -222,7 +222,7 @@ SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a) { uint32_t nonzero = 0xFFFFFFFFUL * (secp256k1_scalar_is_zero(a) == 0); uint64_t t = (uint64_t)(~a->d[0]) + SECP256K1_N_0 + 1; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); r->d[0] = t & nonzero; t >>= 32; t += (uint64_t)(~a->d[1]) + SECP256K1_N_1; @@ -240,7 +240,7 @@ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar t += (uint64_t)(~a->d[7]) + SECP256K1_N_7; r->d[7] = t & nonzero; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a) { @@ -260,7 +260,7 @@ static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a */ uint32_t mask = -(uint32_t)(a->d[0] & 1U); uint64_t t = (uint32_t)((a->d[0] >> 1) | (a->d[1] << 31)); - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); t += (SECP256K1_N_H_0 + 1U) & mask; r->d[0] = t; t >>= 32; @@ -283,17 +283,16 @@ static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a t += SECP256K1_N_H_6 & mask; r->d[6] = t; t >>= 32; r->d[7] = (uint32_t)t + (uint32_t)(a->d[7] >> 1) + (SECP256K1_N_H_7 & mask); -#ifdef VERIFY + /* The line above only computed the bottom 32 bits of r->d[7]. Redo the computation * in full 64 bits to make sure the top 32 bits are indeed zero. */ VERIFY_CHECK((t + (a->d[7] >> 1) + (SECP256K1_N_H_7 & mask)) >> 32 == 0); - secp256k1_scalar_verify(r); -#endif + SECP256K1_SCALAR_VERIFY(r); } SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return ((a->d[0] ^ 1) | a->d[1] | a->d[2] | a->d[3] | a->d[4] | a->d[5] | a->d[6] | a->d[7]) == 0; } @@ -301,7 +300,7 @@ SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { int yes = 0; int no = 0; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); no |= (a->d[7] < SECP256K1_N_H_7); yes |= (a->d[7] > SECP256K1_N_H_7) & ~no; @@ -325,7 +324,7 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { uint32_t mask = -vflag; uint32_t nonzero = 0xFFFFFFFFUL * (secp256k1_scalar_is_zero(r) == 0); uint64_t t = (uint64_t)(r->d[0] ^ mask) + ((SECP256K1_N_0 + 1) & mask); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); r->d[0] = t & nonzero; t >>= 32; t += (uint64_t)(r->d[1] ^ mask) + (SECP256K1_N_1 & mask); @@ -343,7 +342,7 @@ static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { t += (uint64_t)(r->d[7] ^ mask) + (SECP256K1_N_7 & mask); r->d[7] = t & nonzero; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return 2 * (mask == 0) - 1; } @@ -651,17 +650,17 @@ static void secp256k1_scalar_mul_512(uint32_t *l, const secp256k1_scalar *a, con static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { uint32_t l[16]; - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); secp256k1_scalar_mul_512(l, a, b); secp256k1_scalar_reduce_512(r, l); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) { - secp256k1_scalar_verify(k); + SECP256K1_SCALAR_VERIFY(k); r1->d[0] = k->d[0]; r1->d[1] = k->d[1]; @@ -680,13 +679,13 @@ static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r r2->d[6] = 0; r2->d[7] = 0; - secp256k1_scalar_verify(r1); - secp256k1_scalar_verify(r2); + SECP256K1_SCALAR_VERIFY(r1); + SECP256K1_SCALAR_VERIFY(r2); } SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) { - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3]) | (a->d[4] ^ b->d[4]) | (a->d[5] ^ b->d[5]) | (a->d[6] ^ b->d[6]) | (a->d[7] ^ b->d[7])) == 0; } @@ -696,8 +695,8 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, unsigned int shiftlimbs; unsigned int shiftlow; unsigned int shifthigh; - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); VERIFY_CHECK(shift >= 256); secp256k1_scalar_mul_512(l, a, b); @@ -714,13 +713,13 @@ SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, r->d[7] = shift < 288 ? (l[7 + shiftlimbs] >> shiftlow) : 0; secp256k1_scalar_cadd_bit(r, 0, (l[(shift - 1) >> 5] >> ((shift - 1) & 0x1f)) & 1); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint32_t mask0, mask1; volatile int vflag = flag; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); SECP256K1_CHECKMEM_CHECK_VERIFY(r->d, sizeof(r->d)); mask0 = vflag + ~((uint32_t)0); @@ -734,7 +733,7 @@ static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const se r->d[6] = (r->d[6] & mask0) | (a->d[6] & mask1); r->d[7] = (r->d[7] & mask0) | (a->d[7] & mask1); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_from_signed30(secp256k1_scalar *r, const secp256k1_modinv32_signed30 *a) { @@ -763,14 +762,14 @@ static void secp256k1_scalar_from_signed30(secp256k1_scalar *r, const secp256k1_ r->d[6] = a6 >> 12 | a7 << 18; r->d[7] = a7 >> 14 | a8 << 16; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_to_signed30(secp256k1_modinv32_signed30 *r, const secp256k1_scalar *a) { const uint32_t M30 = UINT32_MAX >> 2; const uint32_t a0 = a->d[0], a1 = a->d[1], a2 = a->d[2], a3 = a->d[3], a4 = a->d[4], a5 = a->d[5], a6 = a->d[6], a7 = a->d[7]; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); r->v[0] = a0 & M30; r->v[1] = (a0 >> 30 | a1 << 2) & M30; @@ -793,13 +792,13 @@ static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif - secp256k1_scalar_verify(x); + SECP256K1_SCALAR_VERIFY(x); secp256k1_scalar_to_signed30(&s, x); secp256k1_modinv32(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed30(r, &s); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); } @@ -808,18 +807,18 @@ static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_sc #ifdef VERIFY int zero_in = secp256k1_scalar_is_zero(x); #endif - secp256k1_scalar_verify(x); + SECP256K1_SCALAR_VERIFY(x); secp256k1_scalar_to_signed30(&s, x); secp256k1_modinv32_var(&s, &secp256k1_const_modinfo_scalar); secp256k1_scalar_from_signed30(r, &s); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(secp256k1_scalar_is_zero(r) == zero_in); } SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return !(a->d[0] & 1); } diff --git a/src/scalar_impl.h b/src/scalar_impl.h index b09821fd51..bbba83e937 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -31,7 +31,7 @@ static int secp256k1_scalar_set_b32_seckey(secp256k1_scalar *r, const unsigned c int overflow; secp256k1_scalar_set_b32(r, bin, &overflow); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return (!overflow) & (!secp256k1_scalar_is_zero(r)); } @@ -61,7 +61,7 @@ static void secp256k1_scalar_verify(const secp256k1_scalar *r) { * (arbitrarily) set r2 = k + 5 (mod n) and r1 = k - r2 * lambda (mod n). */ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT r1, secp256k1_scalar * SECP256K1_RESTRICT r2, const secp256k1_scalar * SECP256K1_RESTRICT k) { - secp256k1_scalar_verify(k); + SECP256K1_SCALAR_VERIFY(k); VERIFY_CHECK(r1 != k); VERIFY_CHECK(r2 != k); VERIFY_CHECK(r1 != r2); @@ -69,8 +69,8 @@ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT *r2 = (*k + 5) % EXHAUSTIVE_TEST_ORDER; *r1 = (*k + (EXHAUSTIVE_TEST_ORDER - *r2) * EXHAUSTIVE_TEST_LAMBDA) % EXHAUSTIVE_TEST_ORDER; - secp256k1_scalar_verify(r1); - secp256k1_scalar_verify(r2); + SECP256K1_SCALAR_VERIFY(r1); + SECP256K1_SCALAR_VERIFY(r2); } #else /** @@ -153,7 +153,7 @@ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT 0xE4437ED6UL, 0x010E8828UL, 0x6F547FA9UL, 0x0ABFE4C4UL, 0x221208ACUL, 0x9DF506C6UL, 0x1571B4AEUL, 0x8AC47F71UL ); - secp256k1_scalar_verify(k); + SECP256K1_SCALAR_VERIFY(k); VERIFY_CHECK(r1 != k); VERIFY_CHECK(r2 != k); VERIFY_CHECK(r1 != r2); @@ -168,8 +168,8 @@ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT secp256k1_scalar_negate(r1, r1); secp256k1_scalar_add(r1, r1, k); - secp256k1_scalar_verify(r1); - secp256k1_scalar_verify(r2); + SECP256K1_SCALAR_VERIFY(r1); + SECP256K1_SCALAR_VERIFY(r2); #ifdef VERIFY secp256k1_scalar_split_lambda_verify(r1, r2, k); #endif diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index f2f0d3467a..0895db6a17 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -14,7 +14,7 @@ #include SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return !(*a & 1); } @@ -24,11 +24,11 @@ SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { *r = SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v) { *r = v % EXHAUSTIVE_TEST_ORDER; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); if (offset < 32) return ((*a >> offset) & ((((uint32_t)1) << count) - 1)); @@ -37,7 +37,7 @@ SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_s } SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return secp256k1_scalar_get_bits(a, offset, count); } @@ -45,22 +45,22 @@ SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256 SECP256K1_INLINE static int secp256k1_scalar_check_overflow(const secp256k1_scalar *a) { return *a >= EXHAUSTIVE_TEST_ORDER; } static int secp256k1_scalar_add(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); *r = (*a + *b) % EXHAUSTIVE_TEST_ORDER; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return *r < *b; } static void secp256k1_scalar_cadd_bit(secp256k1_scalar *r, unsigned int bit, int flag) { - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); if (flag && bit < 32) *r += ((uint32_t)1 << bit); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); VERIFY_CHECK(bit < 32); /* Verify that adding (1 << bit) will not overflow any in-range scalar *r by overflowing the underlying uint32_t. */ VERIFY_CHECK(((uint32_t)1 << bit) - 1 <= UINT32_MAX - EXHAUSTIVE_TEST_ORDER); @@ -79,24 +79,24 @@ static void secp256k1_scalar_set_b32(secp256k1_scalar *r, const unsigned char *b } if (overflow) *overflow = over; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar* a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); memset(bin, 0, 32); bin[28] = *a >> 24; bin[29] = *a >> 16; bin[30] = *a >> 8; bin[31] = *a; } SECP256K1_INLINE static int secp256k1_scalar_is_zero(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return *a == 0; } static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); if (*a == 0) { *r = 0; @@ -104,52 +104,52 @@ static void secp256k1_scalar_negate(secp256k1_scalar *r, const secp256k1_scalar *r = EXHAUSTIVE_TEST_ORDER - *a; } - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } SECP256K1_INLINE static int secp256k1_scalar_is_one(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return *a == 1; } static int secp256k1_scalar_is_high(const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); return *a > EXHAUSTIVE_TEST_ORDER / 2; } static int secp256k1_scalar_cond_negate(secp256k1_scalar *r, int flag) { - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); if (flag) secp256k1_scalar_negate(r, r); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); return flag ? -1 : 1; } static void secp256k1_scalar_mul(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b) { - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); *r = (*a * *b) % EXHAUSTIVE_TEST_ORDER; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); *r1 = *a; *r2 = 0; - secp256k1_scalar_verify(r1); - secp256k1_scalar_verify(r2); + SECP256K1_SCALAR_VERIFY(r1); + SECP256K1_SCALAR_VERIFY(r2); } SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) { - secp256k1_scalar_verify(a); - secp256k1_scalar_verify(b); + SECP256K1_SCALAR_VERIFY(a); + SECP256K1_SCALAR_VERIFY(b); return *a == *b; } @@ -157,45 +157,45 @@ SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const secp256k1_scalar *a, int flag) { uint32_t mask0, mask1; volatile int vflag = flag; - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); SECP256K1_CHECKMEM_CHECK_VERIFY(r, sizeof(*r)); mask0 = vflag + ~((uint32_t)0); mask1 = ~mask0; *r = (*r & mask0) | (*a & mask1); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar *x) { int i; *r = 0; - secp256k1_scalar_verify(x); + SECP256K1_SCALAR_VERIFY(x); for (i = 0; i < EXHAUSTIVE_TEST_ORDER; i++) if ((i * *x) % EXHAUSTIVE_TEST_ORDER == 1) *r = i; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); /* If this VERIFY_CHECK triggers we were given a noninvertible scalar (and thus * have a composite group order; fix it in exhaustive_tests.c). */ VERIFY_CHECK(*r != 0); } static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_scalar *x) { - secp256k1_scalar_verify(x); + SECP256K1_SCALAR_VERIFY(x); secp256k1_scalar_inverse(r, x); - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_half(secp256k1_scalar *r, const secp256k1_scalar *a) { - secp256k1_scalar_verify(a); + SECP256K1_SCALAR_VERIFY(a); *r = (*a + ((-(uint32_t)(*a & 1)) & EXHAUSTIVE_TEST_ORDER)) >> 1; - secp256k1_scalar_verify(r); + SECP256K1_SCALAR_VERIFY(r); } #endif /* SECP256K1_SCALAR_REPR_IMPL_H */ From a3a3e11acdb473f96a8972ed40cd3310057aec23 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 1 Dec 2023 01:03:07 +0100 Subject: [PATCH 295/557] remove unneeded VERIFY_SETUP uses in ECMULT_CONST_TABLE_GET_GE macro As the fields r->x and r->y are set immediately after (three lines below), there is no need to clear them. --- src/ecmult_const_impl.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index ece1edc1b5..7dc4aac25d 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -87,8 +87,6 @@ static void secp256k1_ecmult_const_odd_multiples_table_globalz(secp256k1_ge *pre secp256k1_fe neg_y; \ VERIFY_CHECK((n) < (1U << ECMULT_CONST_GROUP_SIZE)); \ VERIFY_CHECK(index < (1U << (ECMULT_CONST_GROUP_SIZE - 1))); \ - VERIFY_SETUP(secp256k1_fe_clear(&(r)->x)); \ - VERIFY_SETUP(secp256k1_fe_clear(&(r)->y)); \ /* Unconditionally set r->x = (pre)[m].x. r->y = (pre)[m].y. because it's either the correct one * or will get replaced in the later iterations, this is needed to make sure `r` is initialized. */ \ (r)->x = (pre)[m].x; \ From bb4672342efce7fae1cfd30e007c6835a25286a7 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 1 Dec 2023 01:07:18 +0100 Subject: [PATCH 296/557] remove VERIFY_SETUP define This define was seemingly introduced for VERIFY mode code with side effects (for setup purposes), that should just be executed without any checks. The same can be achieved by putting it in an `#if VERIFY` block, so we can remove it. --- src/util.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/util.h b/src/util.h index 1f1f92c99b..187bf1c5e0 100644 --- a/src/util.h +++ b/src/util.h @@ -135,10 +135,8 @@ static const secp256k1_callback default_error_callback = { /* Like assert(), but when VERIFY is defined. */ #if defined(VERIFY) #define VERIFY_CHECK CHECK -#define VERIFY_SETUP(stmt) do { stmt; } while(0) #else #define VERIFY_CHECK(cond) -#define VERIFY_SETUP(stmt) #endif static SECP256K1_INLINE void *checked_malloc(const secp256k1_callback* cb, size_t size) { From a47cd97d51e37c38ecf036d04e48518f6b0063f7 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 1 Dec 2023 10:25:57 -0500 Subject: [PATCH 297/557] Add group.h ge/gej equality functions --- src/group.h | 6 ++++++ src/group_impl.h | 29 +++++++++++++++++++++++++++++ src/testutil.h | 23 +++-------------------- 3 files changed, 38 insertions(+), 20 deletions(-) diff --git a/src/group.h b/src/group.h index 0f5161fbf2..d81deb4264 100644 --- a/src/group.h +++ b/src/group.h @@ -102,6 +102,9 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a */ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const secp256k1_fe *zr); +/** Check two group elements (affine) for equality in variable time. */ +static int secp256k1_ge_eq_var(const secp256k1_ge *a, const secp256k1_ge *b); + /** Set a group element (affine) equal to the point at infinity. */ static void secp256k1_ge_set_infinity(secp256k1_ge *r); @@ -114,6 +117,9 @@ static void secp256k1_gej_set_ge(secp256k1_gej *r, const secp256k1_ge *a); /** Check two group elements (jacobian) for equality in variable time. */ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b); +/** Check two group elements (jacobian and affine) for equality in variable time. */ +static int secp256k1_gej_eq_ge_var(const secp256k1_gej *a, const secp256k1_ge *b); + /** Compare the X coordinate of a group element (jacobian). * The magnitude of the group element's X coordinate must not exceed 31. */ static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a); diff --git a/src/group_impl.h b/src/group_impl.h index cd5f0b01f9..537be32ff6 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -354,6 +354,35 @@ static int secp256k1_gej_eq_var(const secp256k1_gej *a, const secp256k1_gej *b) return secp256k1_gej_is_infinity(&tmp); } +static int secp256k1_gej_eq_ge_var(const secp256k1_gej *a, const secp256k1_ge *b) { + secp256k1_gej tmp; + SECP256K1_GEJ_VERIFY(a); + SECP256K1_GE_VERIFY(b); + + secp256k1_gej_neg(&tmp, a); + secp256k1_gej_add_ge_var(&tmp, &tmp, b, NULL); + return secp256k1_gej_is_infinity(&tmp); +} + +static int secp256k1_ge_eq_var(const secp256k1_ge *a, const secp256k1_ge *b) { + secp256k1_fe tmp; + SECP256K1_GE_VERIFY(a); + SECP256K1_GE_VERIFY(b); + + if (a->infinity != b->infinity) return 0; + if (a->infinity) return 1; + + tmp = a->x; + secp256k1_fe_normalize_weak(&tmp); + if (!secp256k1_fe_equal(&tmp, &b->x)) return 0; + + tmp = a->y; + secp256k1_fe_normalize_weak(&tmp); + if (!secp256k1_fe_equal(&tmp, &b->y)) return 0; + + return 1; +} + static int secp256k1_gej_eq_x_var(const secp256k1_fe *x, const secp256k1_gej *a) { secp256k1_fe r; SECP256K1_FE_VERIFY(x); diff --git a/src/testutil.h b/src/testutil.h index 7333541dc5..fd701f2540 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -7,6 +7,7 @@ #define SECP256K1_TESTUTIL_H #include "field.h" +#include "group.h" #include "testrand.h" #include "util.h" @@ -27,29 +28,11 @@ static void random_fe_non_zero(secp256k1_fe *nz) { } static void ge_equals_ge(const secp256k1_ge *a, const secp256k1_ge *b) { - CHECK(a->infinity == b->infinity); - if (a->infinity) { - return; - } - CHECK(secp256k1_fe_equal(&a->x, &b->x)); - CHECK(secp256k1_fe_equal(&a->y, &b->y)); + CHECK(secp256k1_ge_eq_var(a, b)); } static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { - secp256k1_fe z2s; - secp256k1_fe u1, u2, s1, s2; - CHECK(a->infinity == b->infinity); - if (a->infinity) { - return; - } - /* Check a.x * b.z^2 == b.x && a.y * b.z^3 == b.y, to avoid inverses. */ - secp256k1_fe_sqr(&z2s, &b->z); - secp256k1_fe_mul(&u1, &a->x, &z2s); - u2 = b->x; - secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z); - s2 = b->y; - CHECK(secp256k1_fe_equal(&u1, &u2)); - CHECK(secp256k1_fe_equal(&s1, &s2)); + CHECK(secp256k1_gej_eq_ge_var(b, a)); } #endif /* SECP256K1_TESTUTIL_H */ From 60525f6c14ad37719c6ea2deee19ec7b3654f061 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 1 Dec 2023 11:21:34 -0500 Subject: [PATCH 298/557] Add unit tests for group.h equality functions --- src/tests.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/src/tests.c b/src/tests.c index fbaafe5d3a..65e83bb62f 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3706,11 +3706,12 @@ static void test_ge(void) { secp256k1_ge_clear(&ge[0]); secp256k1_ge_set_gej_var(&ge[0], &gej[0]); for (i = 0; i < runs; i++) { - int j; + int j, k; secp256k1_ge g; random_group_element_test(&g); if (i >= runs - 2) { secp256k1_ge_mul_lambda(&g, &ge[1]); + CHECK(!secp256k1_ge_eq_var(&g, &ge[1])); } if (i >= runs - 1) { secp256k1_ge_mul_lambda(&g, &g); @@ -3730,6 +3731,16 @@ static void test_ge(void) { random_gej_y_magnitude(&gej[1 + j + 4 * i]); random_gej_z_magnitude(&gej[1 + j + 4 * i]); } + + for (j = 0; j < 4; ++j) { + for (k = 0; k < 4; ++k) { + int expect_equal = (j >> 1) == (k >> 1); + CHECK(secp256k1_ge_eq_var(&ge[1 + j + 4 * i], &ge[1 + k + 4 * i]) == expect_equal); + CHECK(secp256k1_gej_eq_var(&gej[1 + j + 4 * i], &gej[1 + k + 4 * i]) == expect_equal); + CHECK(secp256k1_gej_eq_ge_var(&gej[1 + j + 4 * i], &ge[1 + k + 4 * i]) == expect_equal); + CHECK(secp256k1_gej_eq_ge_var(&gej[1 + k + 4 * i], &ge[1 + j + 4 * i]) == expect_equal); + } + } } /* Generate random zf, and zfi2 = 1/zf^2, zfi3 = 1/zf^3 */ From 04af0ba162b152073455a5ccbb2c5833ae6d1d57 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Fri, 1 Dec 2023 11:38:50 -0500 Subject: [PATCH 299/557] Replace ge_equals_ge[,j] calls with group.h equality calls --- src/modules/ellswift/tests_exhaustive_impl.h | 2 +- src/modules/ellswift/tests_impl.h | 4 +- src/tests.c | 60 ++++++++++---------- src/tests_exhaustive.c | 25 ++++---- src/testutil.h | 9 --- 5 files changed, 45 insertions(+), 55 deletions(-) diff --git a/src/modules/ellswift/tests_exhaustive_impl.h b/src/modules/ellswift/tests_exhaustive_impl.h index e002a8c008..839c24aee4 100644 --- a/src/modules/ellswift/tests_exhaustive_impl.h +++ b/src/modules/ellswift/tests_exhaustive_impl.h @@ -32,7 +32,7 @@ static void test_exhaustive_ellswift(const secp256k1_context *ctx, const secp256 /* Decode ellswift pubkey and check that it matches the precomputed group element. */ secp256k1_ellswift_decode(ctx, &pub_decoded, ell64); secp256k1_pubkey_load(ctx, &ge_decoded, &pub_decoded); - ge_equals_ge(&ge_decoded, &group[i]); + CHECK(secp256k1_ge_eq_var(&ge_decoded, &group[i])); } } diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index b478e39326..7d1efbc492 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -237,7 +237,7 @@ void run_ellswift_tests(void) { secp256k1_ellswift_decode(CTX, &pubkey2, ell64); secp256k1_pubkey_load(CTX, &g2, &pubkey2); /* Compare with original. */ - ge_equals_ge(&g, &g2); + CHECK(secp256k1_ge_eq_var(&g, &g2)); } /* Verify the behavior of secp256k1_ellswift_create */ for (i = 0; i < 400 * COUNT; i++) { @@ -259,7 +259,7 @@ void run_ellswift_tests(void) { secp256k1_ellswift_decode(CTX, &pub, ell64); secp256k1_pubkey_load(CTX, &dec, &pub); secp256k1_ecmult(&res, NULL, &secp256k1_scalar_zero, &sec); - ge_equals_gej(&dec, &res); + CHECK(secp256k1_gej_eq_ge_var(&res, &dec)); } /* Verify that secp256k1_ellswift_xdh computes the right shared X coordinate. */ for (i = 0; i < 800 * COUNT; i++) { diff --git a/src/tests.c b/src/tests.c index 65e83bb62f..bec1c45585 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3770,7 +3770,7 @@ static void test_ge(void) { /* Test gej + ge with Z ratio result (var). */ secp256k1_gej_add_ge_var(&resj, &gej[i1], &ge[i2], secp256k1_gej_is_infinity(&gej[i1]) ? NULL : &zr); - ge_equals_gej(&ref, &resj); + CHECK(secp256k1_gej_eq_ge_var(&resj, &ref)); if (!secp256k1_gej_is_infinity(&gej[i1]) && !secp256k1_gej_is_infinity(&resj)) { secp256k1_fe zrz; secp256k1_fe_mul(&zrz, &zr, &gej[i1].z); CHECK(secp256k1_fe_equal(&zrz, &resj.z)); @@ -3784,14 +3784,14 @@ static void test_ge(void) { random_ge_x_magnitude(&ge2_zfi); random_ge_y_magnitude(&ge2_zfi); secp256k1_gej_add_zinv_var(&resj, &gej[i1], &ge2_zfi, &zf); - ge_equals_gej(&ref, &resj); + CHECK(secp256k1_gej_eq_ge_var(&resj, &ref)); } /* Test gej + ge (const). */ if (i2 != 0) { /* secp256k1_gej_add_ge does not support its second argument being infinity. */ secp256k1_gej_add_ge(&resj, &gej[i1], &ge[i2]); - ge_equals_gej(&ref, &resj); + CHECK(secp256k1_gej_eq_ge_var(&resj, &ref)); } /* Test doubling (var). */ @@ -3799,16 +3799,16 @@ static void test_ge(void) { secp256k1_fe zr2; /* Normal doubling with Z ratio result. */ secp256k1_gej_double_var(&resj, &gej[i1], &zr2); - ge_equals_gej(&ref, &resj); + CHECK(secp256k1_gej_eq_ge_var(&resj, &ref)); /* Check Z ratio. */ secp256k1_fe_mul(&zr2, &zr2, &gej[i1].z); CHECK(secp256k1_fe_equal(&zr2, &resj.z)); /* Normal doubling. */ secp256k1_gej_double_var(&resj, &gej[i2], NULL); - ge_equals_gej(&ref, &resj); + CHECK(secp256k1_gej_eq_ge_var(&resj, &ref)); /* Constant-time doubling. */ secp256k1_gej_double(&resj, &gej[i2]); - ge_equals_gej(&ref, &resj); + CHECK(secp256k1_gej_eq_ge_var(&resj, &ref)); } /* Test adding opposites. */ @@ -3820,12 +3820,12 @@ static void test_ge(void) { if (i1 == 0) { CHECK(secp256k1_ge_is_infinity(&ge[i1])); CHECK(secp256k1_gej_is_infinity(&gej[i1])); - ge_equals_gej(&ref, &gej[i2]); + CHECK(secp256k1_gej_eq_ge_var(&gej[i2], &ref)); } if (i2 == 0) { CHECK(secp256k1_ge_is_infinity(&ge[i2])); CHECK(secp256k1_gej_is_infinity(&gej[i2])); - ge_equals_gej(&ref, &gej[i1]); + CHECK(secp256k1_gej_eq_ge_var(&gej[i1], &ref)); } } } @@ -3860,7 +3860,7 @@ static void test_ge(void) { secp256k1_fe s; random_fe_non_zero(&s); secp256k1_gej_rescale(&gej[i], &s); - ge_equals_gej(&ge_set_all[i], &gej[i]); + CHECK(secp256k1_gej_eq_ge_var(&gej[i], &ge_set_all[i])); } free(ge_set_all); } @@ -3904,7 +3904,7 @@ static void test_ge(void) { secp256k1_ge_set_all_gej_var(ge, gej, 4 * runs + 1); /* check result */ for (i = 0; i < 4 * runs + 1; i++) { - ge_equals_gej(&ge[i], &gej[i]); + CHECK(secp256k1_gej_eq_ge_var(&gej[i], &ge[i])); } /* Test batch gej -> ge conversion with all infinities. */ @@ -4003,15 +4003,15 @@ static void test_add_neg_y_diff_x(void) { secp256k1_gej_add_var(&resj, &aj, &bj, NULL); secp256k1_ge_set_gej(&res, &resj); - ge_equals_gej(&res, &sumj); + CHECK(secp256k1_gej_eq_ge_var(&sumj, &res)); secp256k1_gej_add_ge(&resj, &aj, &b); secp256k1_ge_set_gej(&res, &resj); - ge_equals_gej(&res, &sumj); + CHECK(secp256k1_gej_eq_ge_var(&sumj, &res)); secp256k1_gej_add_ge_var(&resj, &aj, &b, NULL); secp256k1_ge_set_gej(&res, &resj); - ge_equals_gej(&res, &sumj); + CHECK(secp256k1_gej_eq_ge_var(&sumj, &res)); } static void run_ge(void) { @@ -4304,10 +4304,10 @@ static void test_point_times_order(const secp256k1_gej *point) { CHECK(secp256k1_ge_is_infinity(&res3)); secp256k1_ecmult(&res1, point, &secp256k1_scalar_one, &secp256k1_scalar_zero); secp256k1_ge_set_gej(&res3, &res1); - ge_equals_gej(&res3, point); + CHECK(secp256k1_gej_eq_ge_var(point, &res3)); secp256k1_ecmult(&res1, point, &secp256k1_scalar_zero, &secp256k1_scalar_one); secp256k1_ge_set_gej(&res3, &res1); - ge_equals_ge(&res3, &secp256k1_ge_const_g); + CHECK(secp256k1_ge_eq_var(&secp256k1_ge_const_g, &res3)); } /* These scalars reach large (in absolute value) outputs when fed to secp256k1_scalar_split_lambda. @@ -4435,7 +4435,7 @@ static void ecmult_const_random_mult(void) { secp256k1_ecmult_const(&b, &a, &xn); CHECK(secp256k1_ge_is_valid_var(&a)); - ge_equals_gej(&expected_b, &b); + CHECK(secp256k1_gej_eq_ge_var(&b, &expected_b)); } static void ecmult_const_commutativity(void) { @@ -4456,7 +4456,7 @@ static void ecmult_const_commutativity(void) { secp256k1_ecmult_const(&res2, &mid2, &a); secp256k1_ge_set_gej(&mid1, &res1); secp256k1_ge_set_gej(&mid2, &res2); - ge_equals_ge(&mid1, &mid2); + CHECK(secp256k1_ge_eq_var(&mid1, &mid2)); } static void ecmult_const_mult_zero_one(void) { @@ -4483,13 +4483,13 @@ static void ecmult_const_mult_zero_one(void) { /* 1*point */ secp256k1_ecmult_const(&res1, &point, &secp256k1_scalar_one); secp256k1_ge_set_gej(&res2, &res1); - ge_equals_ge(&res2, &point); + CHECK(secp256k1_ge_eq_var(&res2, &point)); /* -1*point */ secp256k1_ecmult_const(&res1, &point, &negone); secp256k1_gej_neg(&res1, &res1); secp256k1_ge_set_gej(&res2, &res1); - ge_equals_ge(&res2, &point); + CHECK(secp256k1_ge_eq_var(&res2, &point)); } static void ecmult_const_check_result(const secp256k1_ge *A, const secp256k1_scalar* q, const secp256k1_gej *res) { @@ -4498,7 +4498,7 @@ static void ecmult_const_check_result(const secp256k1_ge *A, const secp256k1_sca secp256k1_gej_set_ge(&pointj, A); secp256k1_ecmult(&res2j, &pointj, q, &secp256k1_scalar_zero); secp256k1_ge_set_gej(&res2, &res2j); - ge_equals_gej(&res2, res); + CHECK(secp256k1_gej_eq_ge_var(res, &res2)); } static void ecmult_const_edges(void) { @@ -4606,7 +4606,7 @@ static void ecmult_const_chain_multiply(void) { secp256k1_ecmult_const(&point, &tmp, &scalar); } secp256k1_ge_set_gej(&res, &point); - ge_equals_gej(&res, &expected_point); + CHECK(secp256k1_gej_eq_ge_var(&expected_point, &res)); } static void run_ecmult_const_tests(void) { @@ -5414,11 +5414,11 @@ static void test_ecmult_accumulate(secp256k1_sha256* acc, const secp256k1_scalar secp256k1_ecmult_multi_var(NULL, scratch, &rj5, &secp256k1_scalar_zero, test_ecmult_accumulate_cb, (void*)x, 1); secp256k1_ecmult_const(&rj6, &secp256k1_ge_const_g, x); secp256k1_ge_set_gej_var(&r, &rj1); - ge_equals_gej(&r, &rj2); - ge_equals_gej(&r, &rj3); - ge_equals_gej(&r, &rj4); - ge_equals_gej(&r, &rj5); - ge_equals_gej(&r, &rj6); + CHECK(secp256k1_gej_eq_ge_var(&rj2, &r)); + CHECK(secp256k1_gej_eq_ge_var(&rj3, &r)); + CHECK(secp256k1_gej_eq_ge_var(&rj4, &r)); + CHECK(secp256k1_gej_eq_ge_var(&rj5, &r)); + CHECK(secp256k1_gej_eq_ge_var(&rj6, &r)); if (secp256k1_ge_is_infinity(&r)) { /* Store infinity as 0x00 */ const unsigned char zerobyte[1] = {0}; @@ -5572,7 +5572,7 @@ static void test_ecmult_gen_blind(void) { CHECK(!gej_xyz_equals_gej(&pgej, &pgej2)); CHECK(!gej_xyz_equals_gej(&i, &CTX->ecmult_gen_ctx.initial)); secp256k1_ge_set_gej(&pge, &pgej); - ge_equals_gej(&pge, &pgej2); + CHECK(secp256k1_gej_eq_ge_var(&pgej2, &pge)); } static void test_ecmult_gen_blind_reset(void) { @@ -5963,7 +5963,7 @@ static void run_ec_pubkey_parse_test(void) { SECP256K1_CHECKMEM_CHECK(&ge.x, sizeof(ge.x)); SECP256K1_CHECKMEM_CHECK(&ge.y, sizeof(ge.y)); SECP256K1_CHECKMEM_CHECK(&ge.infinity, sizeof(ge.infinity)); - ge_equals_ge(&secp256k1_ge_const_g, &ge); + CHECK(secp256k1_ge_eq_var(&ge, &secp256k1_ge_const_g)); /* secp256k1_ec_pubkey_serialize illegal args. */ len = 65; CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_serialize(CTX, NULL, &len, &pubkey, SECP256K1_EC_UNCOMPRESSED)); @@ -6532,7 +6532,7 @@ static void test_random_pubkeys(void) { CHECK(secp256k1_eckey_pubkey_serialize(&elem, in, &size, 0)); CHECK(size == 65); CHECK(secp256k1_eckey_pubkey_parse(&elem2, in, size)); - ge_equals_ge(&elem,&elem2); + CHECK(secp256k1_ge_eq_var(&elem2, &elem)); /* Check that the X9.62 hybrid type is checked. */ in[0] = secp256k1_testrand_bits(1) ? 6 : 7; res = secp256k1_eckey_pubkey_parse(&elem2, in, size); @@ -6544,7 +6544,7 @@ static void test_random_pubkeys(void) { } } if (res) { - ge_equals_ge(&elem,&elem2); + CHECK(secp256k1_ge_eq_var(&elem, &elem2)); CHECK(secp256k1_eckey_pubkey_serialize(&elem, out, &size, 0)); CHECK(secp256k1_memcmp_var(&in[1], &out[1], 64) == 0); } diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 491248d612..1a8be57d07 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -67,7 +67,7 @@ static void test_exhaustive_endomorphism(const secp256k1_ge *group) { for (i = 0; i < EXHAUSTIVE_TEST_ORDER; i++) { secp256k1_ge res; secp256k1_ge_mul_lambda(&res, &group[i]); - ge_equals_ge(&group[i * EXHAUSTIVE_TEST_LAMBDA % EXHAUSTIVE_TEST_ORDER], &res); + CHECK(secp256k1_ge_eq_var(&group[i * EXHAUSTIVE_TEST_LAMBDA % EXHAUSTIVE_TEST_ORDER], &res)); } } @@ -93,21 +93,21 @@ static void test_exhaustive_addition(const secp256k1_ge *group, const secp256k1_ secp256k1_gej tmp; /* add_var */ secp256k1_gej_add_var(&tmp, &groupj[i], &groupj[j], NULL); - ge_equals_gej(&group[(i + j) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(i + j) % EXHAUSTIVE_TEST_ORDER])); /* add_ge */ if (j > 0) { secp256k1_gej_add_ge(&tmp, &groupj[i], &group[j]); - ge_equals_gej(&group[(i + j) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(i + j) % EXHAUSTIVE_TEST_ORDER])); } /* add_ge_var */ secp256k1_gej_add_ge_var(&tmp, &groupj[i], &group[j], NULL); - ge_equals_gej(&group[(i + j) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(i + j) % EXHAUSTIVE_TEST_ORDER])); /* add_zinv_var */ zless_gej.infinity = groupj[j].infinity; zless_gej.x = groupj[j].x; zless_gej.y = groupj[j].y; secp256k1_gej_add_zinv_var(&tmp, &groupj[i], &zless_gej, &fe_inv); - ge_equals_gej(&group[(i + j) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(i + j) % EXHAUSTIVE_TEST_ORDER])); } } @@ -115,9 +115,9 @@ static void test_exhaustive_addition(const secp256k1_ge *group, const secp256k1_ for (i = 0; i < EXHAUSTIVE_TEST_ORDER; i++) { secp256k1_gej tmp; secp256k1_gej_double(&tmp, &groupj[i]); - ge_equals_gej(&group[(2 * i) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(2 * i) % EXHAUSTIVE_TEST_ORDER])); secp256k1_gej_double_var(&tmp, &groupj[i], NULL); - ge_equals_gej(&group[(2 * i) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(2 * i) % EXHAUSTIVE_TEST_ORDER])); } /* Check negation */ @@ -125,9 +125,9 @@ static void test_exhaustive_addition(const secp256k1_ge *group, const secp256k1_ secp256k1_ge tmp; secp256k1_gej tmpj; secp256k1_ge_neg(&tmp, &group[i]); - ge_equals_ge(&group[EXHAUSTIVE_TEST_ORDER - i], &tmp); + CHECK(secp256k1_ge_eq_var(&tmp, &group[EXHAUSTIVE_TEST_ORDER - i])); secp256k1_gej_neg(&tmpj, &groupj[i]); - ge_equals_gej(&group[EXHAUSTIVE_TEST_ORDER - i], &tmpj); + CHECK(secp256k1_gej_eq_ge_var(&tmpj, &group[EXHAUSTIVE_TEST_ORDER - i])); } } @@ -144,8 +144,7 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge secp256k1_scalar_set_int(&ng, j); secp256k1_ecmult(&tmp, &groupj[r_log], &na, &ng); - ge_equals_gej(&group[(i * r_log + j) % EXHAUSTIVE_TEST_ORDER], &tmp); - + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(i * r_log + j) % EXHAUSTIVE_TEST_ORDER])); } } } @@ -163,7 +162,7 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge /* Test secp256k1_ecmult_const. */ secp256k1_ecmult_const(&tmp, &group[i], &ng); - ge_equals_gej(&group[(i * j) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(i * j) % EXHAUSTIVE_TEST_ORDER])); if (i != 0 && j != 0) { /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, and xd=NULL. */ @@ -215,7 +214,7 @@ static void test_exhaustive_ecmult_multi(const secp256k1_context *ctx, const sec data.pt[1] = group[y]; secp256k1_ecmult_multi_var(&ctx->error_callback, scratch, &tmp, &g_sc, ecmult_multi_callback, &data, 2); - ge_equals_gej(&group[(i * x + j * y + k) % EXHAUSTIVE_TEST_ORDER], &tmp); + CHECK(secp256k1_gej_eq_ge_var(&tmp, &group[(i * x + j * y + k) % EXHAUSTIVE_TEST_ORDER])); } } } diff --git a/src/testutil.h b/src/testutil.h index fd701f2540..4e2cb7d5b3 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -7,7 +7,6 @@ #define SECP256K1_TESTUTIL_H #include "field.h" -#include "group.h" #include "testrand.h" #include "util.h" @@ -27,12 +26,4 @@ static void random_fe_non_zero(secp256k1_fe *nz) { } while (secp256k1_fe_is_zero(nz)); } -static void ge_equals_ge(const secp256k1_ge *a, const secp256k1_ge *b) { - CHECK(secp256k1_ge_eq_var(a, b)); -} - -static void ge_equals_gej(const secp256k1_ge *a, const secp256k1_gej *b) { - CHECK(secp256k1_gej_eq_ge_var(b, a)); -} - #endif /* SECP256K1_TESTUTIL_H */ From 76880e40151ddb18d0cd0549502d5ade95f501d6 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 17 Oct 2023 13:09:36 +0000 Subject: [PATCH 300/557] Add CONTRIBUTING.md including scope and guidelines for new code --- CONTRIBUTING.md | 41 +++++++++++++++++++++++++++++++++++++++++ README.md | 5 +++++ 2 files changed, 46 insertions(+) create mode 100644 CONTRIBUTING.md diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 0000000000..a79e32c597 --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,41 @@ +# Contributing to libsecp256k1 + +## Scope + +libsecp256k1 is a library for elliptic curve cryptography on the curve secp256k1, not a general-purpose cryptography library. +The library primarily serves the needs of the Bitcoin Core project but provides additional functionality for the benefit of the wider Bitcoin ecosystem. + +## Adding new functionality or modules + +The libsecp256k1 project welcomes contributions in the form of new functionality or modules, provided they are within the project's scope. + +It is the responsibility of the contributors to convince the maintainers that the proposed functionality is within the project's scope, high-quality and maintainable. +Contributors are recommended to provide the following in addition to the new code: + +* **Specification:** + A specification can help significantly in reviewing the new code as it provides documentation and context. + It may justify various design decisions, give a motivation and outline security goals. + If the specification contains pseudocode, a reference implementation or test vectors, these can be used to compare with the proposed libsecp256k1 code. +* **Security Arguments:** + In addition to a defining the security goals, it should be argued that the new functionality meets these goals. + Depending on the nature of the new functionality, a wide range of security arguments are acceptable, ranging from being "obviously secure" to rigorous proofs of security. +* **Relevance Arguments:** + The relevance of the new functionality for the Bitcoin ecosystem should be argued by outlining clear use cases. + +These are not the only factors taken into account when considering to add new functionality. +The proposed new libsecp256k1 code must be of high quality, including API documentation and tests, as well as featuring a misuse-resistant API design. + +We recommend reaching out to other contributors (see [Communication Channels](#communication-channels)) and get feedback before implementing new functionality. + +## Communication channels + +Most communication about libsecp256k1 occurs on the GitHub repository: in issues, pull request or on the discussion board. + +Additionally, there is an IRC channel dedicated to libsecp256k1, with biweekly meetings (see channel topic). +The channel is `#secp256k1` on Libera Chat. +The easiest way to participate on IRC is with the web client, [web.libera.chat](https://web.libera.chat/#secp256k1). +Chat history logs can be found at https://gnusha.org/secp256k1/. + +## Contributor workflow & peer review + +The Contributor Workflow & Peer Review in libsecp256k1 are similar to Bitcoin Core's workflow and review processes described in Core's [CONTRIBUTING.md](https://github.com/bitcoin/bitcoin/blob/master/CONTRIBUTING.md). diff --git a/README.md b/README.md index 19dabe8505..7761076a78 100644 --- a/README.md +++ b/README.md @@ -155,3 +155,8 @@ Reporting a vulnerability ------------ See [SECURITY.md](SECURITY.md) + +Contributing to libsecp256k1 +------------ + +See [CONTRIBUTING.md](CONTRIBUTING.md) From 0922a047fb2a225fd89802bbd6f2d0919cd50bca Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 18 Oct 2023 08:16:54 +0000 Subject: [PATCH 301/557] docs: move coverage report instructions to CONTRIBUTING --- CONTRIBUTING.md | 21 +++++++++++++++++++++ README.md | 22 ---------------------- 2 files changed, 21 insertions(+), 22 deletions(-) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index a79e32c597..ac11b43409 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -39,3 +39,24 @@ Chat history logs can be found at https://gnusha.org/secp256k1/. ## Contributor workflow & peer review The Contributor Workflow & Peer Review in libsecp256k1 are similar to Bitcoin Core's workflow and review processes described in Core's [CONTRIBUTING.md](https://github.com/bitcoin/bitcoin/blob/master/CONTRIBUTING.md). + +### Test coverage + +This library aims to have full coverage of reachable lines and branches. + +To create a test coverage report, configure with `--enable-coverage` (use of GCC is necessary): + + $ ./configure --enable-coverage + +Run the tests: + + $ make check + +To create a report, `gcovr` is recommended, as it includes branch coverage reporting: + + $ gcovr --exclude 'src/bench*' --print-summary + +To create a HTML report with coloured and annotated source code: + + $ mkdir -p coverage + $ gcovr --exclude 'src/bench*' --html --html-details -o coverage/coverage.html diff --git a/README.md b/README.md index 7761076a78..cfc5ccae5d 100644 --- a/README.md +++ b/README.md @@ -117,28 +117,6 @@ Usage examples can be found in the [examples](examples) directory. To compile th To compile the Schnorr signature and ECDH examples, you also need to configure with `--enable-module-schnorrsig` and `--enable-module-ecdh`. -Test coverage ------------ - -This library aims to have full coverage of the reachable lines and branches. - -To create a test coverage report, configure with `--enable-coverage` (use of GCC is necessary): - - $ ./configure --enable-coverage - -Run the tests: - - $ make check - -To create a report, `gcovr` is recommended, as it includes branch coverage reporting: - - $ gcovr --exclude 'src/bench*' --print-summary - -To create a HTML report with coloured and annotated source code: - - $ mkdir -p coverage - $ gcovr --exclude 'src/bench*' --html --html-details -o coverage/coverage.html - Benchmark ------------ If configured with `--enable-benchmark` (which is the default), binaries for benchmarking the libsecp256k1 functions will be present in the root directory after the build. From 1a432cb98220f29ac47639d30a6dbb3aa679a441 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 18 Oct 2023 08:37:40 +0000 Subject: [PATCH 302/557] README: update first sentence libsecp256k1 has become more than a library for just ECDSA and key tweaking. --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index cfc5ccae5d..25cb1451f0 100644 --- a/README.md +++ b/README.md @@ -5,7 +5,7 @@ libsecp256k1 ![Dependencies: None](https://img.shields.io/badge/dependencies-none-success) [![irc.libera.chat #secp256k1](https://img.shields.io/badge/irc.libera.chat-%23secp256k1-success)](https://web.libera.chat/#secp256k1) -Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1. +High-performance high-assurance C library for digital signatures and other cryptographic primitives on the secp256k1 elliptic curve. This library is intended to be the highest quality publicly available library for cryptography on the secp256k1 curve. However, the primary focus of its development has been for usage in the Bitcoin system and usage unlike Bitcoin's may be less well tested, verified, or suffer from a less well thought out interface. Correct usage requires some care and consideration that the library is fit for your application's purpose. From d2e36a2b81c0ba9d28425ea14c1ff6523156ee52 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 5 Dec 2023 14:21:29 +0000 Subject: [PATCH 303/557] changelog: add entry for "field: Remove x86_64 asm" --- CHANGELOG.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index e1ccc5bb2b..667cec5e8f 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 #### Changed - The point multiplication algorithm used for ECDH operations (module `ecdh`) was replaced with a slightly faster one. + - Optional handwritten x86_64 assembly for field operations was removed because modern C compilers are able to output more efficient assembly. This change results in a significant speedup of some library functions when handwritten x86_64 assembly is enabled (`--with-asm=x86_64` in GNU Autotools, `-DSECP256K1_ASM=x86_64` in CMake), which is the default on x86_64. Benchmarks with GCC 10.5.0 show a 10% speedup for `secp256k1_ecdsa_verify` and `secp256k1_schnorrsig_verify`. + ## [0.4.0] - 2023-09-04 From 0e5ea6220707d9c96e06efc43bce3d5a3b3a06f2 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 18 Oct 2023 12:00:48 +0000 Subject: [PATCH 304/557] CONTRIBUTING: add some coding and style conventions --- CONTRIBUTING.md | 51 ++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 48 insertions(+), 3 deletions(-) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index ac11b43409..a5e457913a 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -38,9 +38,45 @@ Chat history logs can be found at https://gnusha.org/secp256k1/. ## Contributor workflow & peer review -The Contributor Workflow & Peer Review in libsecp256k1 are similar to Bitcoin Core's workflow and review processes described in Core's [CONTRIBUTING.md](https://github.com/bitcoin/bitcoin/blob/master/CONTRIBUTING.md). - -### Test coverage +The Contributor Workflow & Peer Review in libsecp256k1 are similar to Bitcoin Core's workflow and review processes described in its [CONTRIBUTING.md](https://github.com/bitcoin/bitcoin/blob/master/CONTRIBUTING.md). + +### Coding conventions + +In addition, libsecp256k1 tries to maintain the following coding conventions: + +* No runtime heap allocation (e.g., no `malloc`) unless explicitly requested by the caller (via `secp256k1_context_create` or `secp256k1_scratch_space_create`, for example). Morever, it should be possible to use the library without any heap allocations. +* The tests should cover all lines and branches of the library (see [Test coverage](#coverage)). +* Operations involving secret data should be tested for being constant time with respect to the secrets (see [src/ctime_tests.c](src/ctime_tests.c)). +* Local variables containing secret data should be cleared explicitly to try to delete secrets from memory. +* Use `secp256k1_memcmp_var` instead of `memcmp` (see [#823](https://github.com/bitcoin-core/secp256k1/issues/823)). + +#### Style conventions + +* Commits should be atomic and diffs should be easy to read. For this reason, do not mix any formatting fixes or code moves with actual code changes. Make sure each individual commit is hygienic: that it builds successfully on its own without warnings, errors, regressions, or test failures. +* New code should adhere to the style of existing, in particular surrounding, code. Other than that, we do not enforce strict rules for code formatting. +* The code conforms to C89. Most notably, that means that only `/* ... */` comments are allowed (no `//` line comments). Moreover, any declarations in a `{ ... }` block (e.g., a function) must appear at the beginning of the block before any statements. When you would like to declare a variable in the middle of a block, you can open a new block: + ```C + void secp256k_foo(void) { + unsigned int x; /* declaration */ + int y = 2*x; /* declaration */ + x = 17; /* statement */ + { + int a, b; /* declaration */ + a = x + y; /* statement */ + secp256k_bar(x, &b); /* statement */ + } + } + ``` +* Use `unsigned int` instead of just `unsigned`. +* Use `void *ptr` instead of `void* ptr`. +* Arguments of the publicly-facing API must have a specific order defined in [include/secp256k1.h](include/secp256k1.h). +* User-facing comment lines in headers should be limited to 80 chars if possible. +* All identifiers in file scope should start with `secp256k1_`. +* Avoid trailing whitespace. + +### Tests + +#### Coverage This library aims to have full coverage of reachable lines and branches. @@ -60,3 +96,12 @@ To create a HTML report with coloured and annotated source code: $ mkdir -p coverage $ gcovr --exclude 'src/bench*' --html --html-details -o coverage/coverage.html + +#### Exhaustive tests + +There are tests of several functions in which a small group replaces secp256k1. +These tests are *exhaustive* since they provide all elements and scalars of the small group as input arguments (see [src/tests_exhaustive.c](src/tests_exhaustive.c)). + +### Benchmarks + +See `src/bench*.c` for examples of benchmarks. From 3928b7c38367947756b7d506f431bfb7bbbac5d0 Mon Sep 17 00:00:00 2001 From: Coding Enthusiast Date: Fri, 8 Dec 2023 08:13:16 +0330 Subject: [PATCH 305/557] doc: improve secp256k1_fe_set_b32_mod doc --- src/field.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/field.h b/src/field.h index df7411131b..bd589bf8a8 100644 --- a/src/field.h +++ b/src/field.h @@ -184,7 +184,8 @@ static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b); */ static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b); -/** Set a field element equal to a provided 32-byte big endian value, reducing it. +/** Set a field element equal to the element represented by a provided 32-byte big endian value + * interpreted modulo p. * * On input, r does not need to be initialized. a must be a pointer to an initialized 32-byte array. * On output, r = a (mod p). It will have magnitude 1, and not be normalized. From e7f830e32c61ac4cf6c562b477063ccf35940ba9 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 20 Dec 2023 17:37:39 +0000 Subject: [PATCH 306/557] Add `tools/check-abi.sh` Co-authored-by: Tim Ruffing --- tools/check-abi.sh | 64 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100755 tools/check-abi.sh diff --git a/tools/check-abi.sh b/tools/check-abi.sh new file mode 100755 index 0000000000..8f6119cd8e --- /dev/null +++ b/tools/check-abi.sh @@ -0,0 +1,64 @@ +#!/bin/sh + +set -eu + +default_base_version="$(git describe --match "v*.*.*" --abbrev=0)" +default_new_version="master" + +display_help_and_exit() { + echo "Usage: $0 " + echo "" + echo "Description: This script uses the ABI Compliance Checker tool to determine if the ABI" + echo " of a new version of libsecp256k1 has changed in a backward-incompatible way." + echo "" + echo "Options:" + echo " base_ver Specify the base version (default: $default_base_version)" + echo " new_ver Specify the new version (default: $default_new_version)" + echo " -h, --help Display this help message" + exit 0 +} + +if [ "$#" -eq 0 ]; then + base_version="$default_base_version" + new_version="$default_new_version" +elif [ "$#" -eq 1 ] && { [ "$1" = "-h" ] || [ "$1" = "--help" ]; }; then + display_help_and_exit +elif [ "$#" -eq 2 ]; then + base_version="$1" + new_version="$2" +else + echo "Invalid usage. See help:" + echo "" + display_help_and_exit +fi + +checkout_and_build() { + git worktree add -d "$1" "$2" + cd "$1" + mkdir build && cd build + cmake -S .. --preset dev-mode \ + -DCMAKE_C_COMPILER=gcc -DCMAKE_BUILD_TYPE=None -DCMAKE_C_FLAGS="-g -Og -gdwarf-4" \ + -DSECP256K1_BUILD_BENCHMARK=OFF \ + -DSECP256K1_BUILD_TESTS=OFF \ + -DSECP256K1_BUILD_EXHAUSTIVE_TESTS=OFF \ + -DSECP256K1_BUILD_CTIME_TESTS=OFF \ + -DSECP256K1_BUILD_EXAMPLES=OFF + cmake --build . -j "$(nproc)" + abi-dumper src/libsecp256k1.so -o ABI.dump -lver "$2" +} + +echo "Comparing $base_version (base version) to $new_version (new version)" +echo + +original_dir="$(pwd)" + +base_source_dir=$(mktemp -d) +checkout_and_build "$base_source_dir" "$base_version" + +new_source_dir=$(mktemp -d) +checkout_and_build "$new_source_dir" "$new_version" + +cd "$original_dir" +abi-compliance-checker -lib libsecp256k1 -old "${base_source_dir}/build/ABI.dump" -new "${new_source_dir}/build/ABI.dump" +git worktree remove "$base_source_dir" +git worktree remove "$new_source_dir" From 74a4d974d5c81fbc437287dffc453028509682ab Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 20 Dec 2023 17:38:18 +0000 Subject: [PATCH 307/557] doc: Add ABI checking with `check-abi.sh` to the Release Process --- doc/release-process.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/release-process.md b/doc/release-process.md index 071598049c..51e337a5ab 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -34,6 +34,11 @@ build=$(mktemp -d) cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -RlAh $dir gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rpath,"$dir/lib",-rpath,"$dir/lib64" && ./ecdsa ``` +4. Use the [`check-abi.sh`](/tools/check-abi.sh) tool to ensure there are no unexpected ABI incompatibilities and that the version number and release notes accurately reflect all potential ABI changes. To run this tool, the `abi-dumper` and `abi-compliance-checker` packages are required. + +```shell +tools/check-abi.sh +``` ## Regular release From 672053d8015fe8ac8d411ef79fbcd97abc045b56 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 21 Dec 2023 15:17:27 +0000 Subject: [PATCH 308/557] release: prepare for 0.4.1 --- CHANGELOG.md | 6 ++++-- configure.ac | 2 +- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 667cec5e8f..e42420f677 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,12 +5,14 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.4.1] - 2023-12-21 #### Changed - The point multiplication algorithm used for ECDH operations (module `ecdh`) was replaced with a slightly faster one. - Optional handwritten x86_64 assembly for field operations was removed because modern C compilers are able to output more efficient assembly. This change results in a significant speedup of some library functions when handwritten x86_64 assembly is enabled (`--with-asm=x86_64` in GNU Autotools, `-DSECP256K1_ASM=x86_64` in CMake), which is the default on x86_64. Benchmarks with GCC 10.5.0 show a 10% speedup for `secp256k1_ecdsa_verify` and `secp256k1_schnorrsig_verify`. +#### ABI Compatibility +The ABI is backward compatible with versions 0.4.0 and 0.3.x. ## [0.4.0] - 2023-09-04 @@ -111,7 +113,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...HEAD +[0.4.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...v0.4.1 [0.4.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...v0.4.0 [0.3.2]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.1...v0.3.2 [0.3.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.0...v0.3.1 diff --git a/configure.ac b/configure.ac index 50ce115c70..51ac230cfc 100644 --- a/configure.ac +++ b/configure.ac @@ -6,7 +6,7 @@ AC_PREREQ([2.60]) define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 4) define(_PKG_VERSION_PATCH, 1) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: From 4b2e06f460a513bff630fa60c537d290589049a8 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 21 Dec 2023 15:56:11 +0000 Subject: [PATCH 309/557] release cleanup: bump version after 0.4.1 --- CHANGELOG.md | 3 +++ CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index e42420f677..04ac9b7e5a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.4.1] - 2023-12-21 #### Changed @@ -113,6 +115,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...HEAD [0.4.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...v0.4.1 [0.4.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...v0.4.0 [0.3.2]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.1...v0.3.2 diff --git a/CMakeLists.txt b/CMakeLists.txt index b7aa20c18d..cf0dc3ba93 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.4.1 + VERSION 0.4.2 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -35,7 +35,7 @@ endif() # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 3) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 2) set(${PROJECT_NAME}_LIB_VERSION_AGE 1) set(CMAKE_C_STANDARD 90) diff --git a/configure.ac b/configure.ac index 51ac230cfc..2c1596775e 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 4) -define(_PKG_VERSION_PATCH, 1) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 2) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 3) -define(_LIB_VERSION_REVISION, 1) +define(_LIB_VERSION_REVISION, 2) define(_LIB_VERSION_AGE, 1) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 429d21dc79ef4a9f0b3837c530a06d581baf067f Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 21 Dec 2023 17:28:08 +0100 Subject: [PATCH 310/557] release process: Run sanity checks on release PR --- doc/release-process.md | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/doc/release-process.md b/doc/release-process.md index 51e337a5ab..9fa2c644ae 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -15,7 +15,7 @@ This process also assumes that there will be no minor releases for old major rel We aim to cut a regular release every 3-4 months, approximately twice as frequent as major Bitcoin Core releases. Every second release should be published one month before the feature freeze of the next major Bitcoin Core release, allowing sufficient time to update the library in Core. ## Sanity Checks -Perform these checks before creating a release: +Perform these checks when reviewing the release PR (see below): 1. Ensure `make distcheck` doesn't fail. ```shell @@ -51,19 +51,20 @@ tools/check-abi.sh * if this is not a patch release * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` in `configure.ac` and * updates `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_*` in `CMakeLists.txt`. -2. After the PR is merged, tag the commit and push it: +2. Perform the [sanity checks](#sanity-checks) on the PR branch. +3. After the PR is merged, tag the commit and push it: ``` RELEASE_COMMIT= git tag -s v$MAJOR.$MINOR.$PATCH -m "libsecp256k1 $MAJOR.$MINOR.$PATCH" $RELEASE_COMMIT git push git@github.com:bitcoin-core/secp256k1.git v$MAJOR.$MINOR.$PATCH ``` -3. Open a PR to the master branch with a commit (using message `"release cleanup: bump version after $MAJOR.$MINOR.$PATCH"`, for example) that +4. Open a PR to the master branch with a commit (using message `"release cleanup: bump version after $MAJOR.$MINOR.$PATCH"`, for example) that * sets `_PKG_VERSION_IS_RELEASE` to `false` and increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac`, * increments the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt`, and * adds an `[Unreleased]` section header to the [CHANGELOG.md](../CHANGELOG.md). If other maintainers are not present to approve the PR, it can be merged without ACKs. -4. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). +5. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). ## Maintenance release @@ -80,14 +81,15 @@ Note that bugfixes only need to be backported to releases for which no compatibl * increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac` and the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt` (with commit message `"release: bump versions for $MAJOR.$MINOR.$PATCH"`, for example). -3. After the PRs are merged, update the release branch and tag the commit: +3. Perform the [sanity checks](#sanity-checks) on the PR branch. +4. After the PRs are merged, update the release branch and tag the commit: ``` git checkout $MAJOR.$MINOR && git pull git tag -s v$MAJOR.$MINOR.$PATCH -m "libsecp256k1 $MAJOR.$MINOR.$PATCH" ``` -4. Push tag: +5. Push tag: ``` git push git@github.com:bitcoin-core/secp256k1.git v$MAJOR.$MINOR.$PATCH ``` -5. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). -6. Open PR to the master branch that includes a commit (with commit message `"release notes: add $MAJOR.$MINOR.$PATCH"`, for example) that adds release notes to [CHANGELOG.md](../CHANGELOG.md). +6. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). +7. Open PR to the master branch that includes a commit (with commit message `"release notes: add $MAJOR.$MINOR.$PATCH"`, for example) that adds release notes to [CHANGELOG.md](../CHANGELOG.md). From e7053d065b9b2c7a67dd7908598e51b739cc2f77 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 21 Dec 2023 17:29:00 +0100 Subject: [PATCH 311/557] release process: Add email step --- doc/release-process.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/doc/release-process.md b/doc/release-process.md index 9fa2c644ae..4780f1dc1b 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -65,6 +65,7 @@ tools/check-abi.sh If other maintainers are not present to approve the PR, it can be merged without ACKs. 5. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). +6. Send an announcement email to the bitcoin-dev mailing list. ## Maintenance release @@ -92,4 +93,5 @@ Note that bugfixes only need to be backported to releases for which no compatibl git push git@github.com:bitcoin-core/secp256k1.git v$MAJOR.$MINOR.$PATCH ``` 6. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). -7. Open PR to the master branch that includes a commit (with commit message `"release notes: add $MAJOR.$MINOR.$PATCH"`, for example) that adds release notes to [CHANGELOG.md](../CHANGELOG.md). +7. Send an announcement email to the bitcoin-dev mailing list. +8. Open PR to the master branch that includes a commit (with commit message `"release notes: add $MAJOR.$MINOR.$PATCH"`, for example) that adds release notes to [CHANGELOG.md](../CHANGELOG.md). From d77170a88d0d6f27d0b90057fa7cd25ec74e3850 Mon Sep 17 00:00:00 2001 From: shuoer86 <129674997+shuoer86@users.noreply.github.com> Date: Tue, 2 Jan 2024 19:56:38 +0800 Subject: [PATCH 312/557] Fix typos --- CONTRIBUTING.md | 2 +- src/scalar_impl.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index a5e457913a..5fbf7332c9 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -44,7 +44,7 @@ The Contributor Workflow & Peer Review in libsecp256k1 are similar to Bitcoin Co In addition, libsecp256k1 tries to maintain the following coding conventions: -* No runtime heap allocation (e.g., no `malloc`) unless explicitly requested by the caller (via `secp256k1_context_create` or `secp256k1_scratch_space_create`, for example). Morever, it should be possible to use the library without any heap allocations. +* No runtime heap allocation (e.g., no `malloc`) unless explicitly requested by the caller (via `secp256k1_context_create` or `secp256k1_scratch_space_create`, for example). Moreover, it should be possible to use the library without any heap allocations. * The tests should cover all lines and branches of the library (see [Test coverage](#coverage)). * Operations involving secret data should be tested for being constant time with respect to the secrets (see [src/ctime_tests.c](src/ctime_tests.c)). * Local variables containing secret data should be cleared explicitly to try to delete secrets from memory. diff --git a/src/scalar_impl.h b/src/scalar_impl.h index bbba83e937..972d8041b0 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -229,7 +229,7 @@ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT * <= {triangle inequality} * a1*|k*b2/n - c1| + a2*|k*(-b1)/n - c2| * < {Lemma 1 and Lemma 2} - * a1*(2^-1 + epslion1) + a2*(2^-1 + epsilon2) + * a1*(2^-1 + epsilon1) + a2*(2^-1 + epsilon2) * < {rounding up to an integer} * (a1 + a2 + 1)/2 * < {rounding up to a power of 2} @@ -247,7 +247,7 @@ static void secp256k1_scalar_split_lambda(secp256k1_scalar * SECP256K1_RESTRICT * <= {triangle inequality} * (-b1)*|k*b2/n - c1| + b2*|k*(-b1)/n - c2| * < {Lemma 1 and Lemma 2} - * (-b1)*(2^-1 + epslion1) + b2*(2^-1 + epsilon2) + * (-b1)*(2^-1 + epsilon1) + b2*(2^-1 + epsilon2) * < {rounding up to an integer} * (-b1 + b2)/2 + 1 * < {rounding up to a power of 2} From 3dbfb48946b9d2a98acef23674617510cf1b3386 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 4 Jan 2024 15:45:11 +0000 Subject: [PATCH 313/557] tests: restore scalar_mul test Without this commit, the res[i][1] test vectors are unused. They were introduced to test the correctness of scalar_sqr(x) and scalar_mul(x, x). These tests were deleted as part of removing scalar_sqr in commit 5437e7bdfbffddf69fdf7b4af7e997c78f5dafbf. --- src/tests.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/tests.c b/src/tests.c index bec1c45585..32946439ff 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2941,6 +2941,8 @@ static void run_scalar_tests(void) { CHECK(!secp256k1_scalar_check_overflow(&zz)); CHECK(secp256k1_scalar_eq(&secp256k1_scalar_one, &zz)); } + secp256k1_scalar_mul(&z, &x, &x); + CHECK(secp256k1_scalar_eq(&r2, &z)); } } } From e3f690015a21d6404cdec30666f721001b493172 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 4 Jan 2024 16:35:36 +0000 Subject: [PATCH 314/557] include: remove obvious "cannot be NULL" doc --- include/secp256k1_schnorrsig.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h index 26358533f6..9ffdbfa8d3 100644 --- a/include/secp256k1_schnorrsig.h +++ b/include/secp256k1_schnorrsig.h @@ -173,7 +173,7 @@ SECP256K1_API int secp256k1_schnorrsig_sign_custom( * In: sig64: pointer to the 64-byte signature to verify. * msg: the message being verified. Can only be NULL if msglen is 0. * msglen: length of the message - * pubkey: pointer to an x-only public key to verify with (cannot be NULL) + * pubkey: pointer to an x-only public key to verify with */ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_schnorrsig_verify( const secp256k1_context *ctx, From aa3dd5280b4a046c03bd344bfd7f1499199a1f3c Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 4 Jan 2024 17:12:59 +0000 Subject: [PATCH 315/557] include: make doc about ctx more consistent Replaces "ctx: a secp256k1 context object" with "ctx: pointer to a context object". Also removes the word "existing". --- include/secp256k1.h | 42 ++++++++++++++++---------------- include/secp256k1_extrakeys.h | 6 ++--- include/secp256k1_preallocated.h | 10 ++++---- include/secp256k1_recovery.h | 20 +++++++-------- include/secp256k1_schnorrsig.h | 2 +- 5 files changed, 40 insertions(+), 40 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 936f0b42b7..3a3a97bac8 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -265,7 +265,7 @@ SECP256K1_API void secp256k1_selftest(void); * memory allocation entirely, see secp256k1_context_static and the functions in * secp256k1_preallocated.h. * - * Returns: a newly created context object. + * Returns: pointer to a newly created context object. * In: flags: Always set to SECP256K1_CONTEXT_NONE (see below). * * The only valid non-deprecated flag in recent library versions is @@ -296,8 +296,8 @@ SECP256K1_API secp256k1_context *secp256k1_context_create( * Cloning secp256k1_context_static is not possible, and should not be emulated by * the caller (e.g., using memcpy). Create a new context instead. * - * Returns: a newly created context object. - * Args: ctx: an existing context to copy (not secp256k1_context_static) + * Returns: pointer to a newly created context object. + * Args: ctx: pointer to a context to copy (not secp256k1_context_static). */ SECP256K1_API secp256k1_context *secp256k1_context_clone( const secp256k1_context *ctx @@ -313,7 +313,7 @@ SECP256K1_API secp256k1_context *secp256k1_context_clone( * behaviour is undefined. In that case, secp256k1_context_preallocated_destroy must * be used instead. * - * Args: ctx: an existing context to destroy, constructed using + * Args: ctx: pointer to a context to destroy, constructed using * secp256k1_context_create or secp256k1_context_clone * (i.e., not secp256k1_context_static). */ @@ -350,7 +350,7 @@ SECP256K1_API void secp256k1_context_destroy( * fails. In this case, the corresponding default handler will be called with * the data pointer argument set to NULL. * - * Args: ctx: an existing context object. + * Args: ctx: pointer to a context object. * In: fun: a pointer to a function to call when an illegal argument is * passed to the API, taking a message and an opaque pointer. * (NULL restores the default handler.) @@ -377,7 +377,7 @@ SECP256K1_API void secp256k1_context_set_illegal_callback( * for that). After this callback returns, anything may happen, including * crashing. * - * Args: ctx: an existing context object. + * Args: ctx: pointer to a context object. * In: fun: a pointer to a function to call when an internal error occurs, * taking a message and an opaque pointer (NULL restores the * default handler, see secp256k1_context_set_illegal_callback @@ -395,7 +395,7 @@ SECP256K1_API void secp256k1_context_set_error_callback( /** Create a secp256k1 scratch space object. * * Returns: a newly created scratch space. - * Args: ctx: an existing context object. + * Args: ctx: pointer to a context object. * In: size: amount of memory to be available as scratch space. Some extra * (<100 bytes) will be allocated for extra accounting. */ @@ -407,7 +407,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space *secp256k1_sc /** Destroy a secp256k1 scratch space. * * The pointer may not be used afterwards. - * Args: ctx: a secp256k1 context object. + * Args: ctx: a pointer to a context object. * scratch: space to destroy */ SECP256K1_API void secp256k1_scratch_space_destroy( @@ -419,7 +419,7 @@ SECP256K1_API void secp256k1_scratch_space_destroy( * * Returns: 1 if the public key was fully valid. * 0 if the public key could not be parsed or is invalid. - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object. * Out: pubkey: pointer to a pubkey object. If 1 is returned, it is set to a * parsed version of input. If not, its value is undefined. * In: input: pointer to a serialized public key @@ -439,7 +439,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_parse( /** Serialize a pubkey object into a serialized byte sequence. * * Returns: 1 always. - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object. * Out: output: a pointer to a 65-byte (if compressed==0) or 33-byte (if * compressed==1) byte array to place the serialized key * in. @@ -464,7 +464,7 @@ SECP256K1_API int secp256k1_ec_pubkey_serialize( * Returns: <0 if the first public key is less than the second * >0 if the first public key is greater than the second * 0 if the two public keys are equal - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object * In: pubkey1: first public key to compare * pubkey2: second public key to compare */ @@ -477,9 +477,9 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_cmp( /** Parse an ECDSA signature in compact (64 bytes) format. * * Returns: 1 when the signature could be parsed, 0 otherwise. - * Args: ctx: a secp256k1 context object - * Out: sig: a pointer to a signature object - * In: input64: a pointer to the 64-byte array to parse + * Args: ctx: pointer to a context object + * Out: sig: pointer to a signature object + * In: input64: pointer to the 64-byte array to parse * * The signature must consist of a 32-byte big endian R value, followed by a * 32-byte big endian S value. If R or S fall outside of [0..order-1], the @@ -498,7 +498,7 @@ SECP256K1_API int secp256k1_ecdsa_signature_parse_compact( /** Parse a DER ECDSA signature. * * Returns: 1 when the signature could be parsed, 0 otherwise. - * Args: ctx: a secp256k1 context object + * Args: ctx: pointer to a context object * Out: sig: a pointer to a signature object * In: input: a pointer to the signature to be parsed * inputlen: the length of the array pointed to be input @@ -520,7 +520,7 @@ SECP256K1_API int secp256k1_ecdsa_signature_parse_der( /** Serialize an ECDSA signature in DER format. * * Returns: 1 if enough space was available to serialize, 0 otherwise - * Args: ctx: a secp256k1 context object + * Args: ctx: pointer to a context object * Out: output: a pointer to an array to store the DER serialization * In/Out: outputlen: a pointer to a length integer. Initially, this integer * should be set to the length of output. After the call @@ -538,9 +538,9 @@ SECP256K1_API int secp256k1_ecdsa_signature_serialize_der( /** Serialize an ECDSA signature in compact (64 byte) format. * * Returns: 1 - * Args: ctx: a secp256k1 context object - * Out: output64: a pointer to a 64-byte array to store the compact serialization - * In: sig: a pointer to an initialized signature object + * Args: ctx: pointer to a context object + * Out: output64: pointer to a 64-byte array to store the compact serialization + * In: sig: pointer to an initialized signature object * * See secp256k1_ecdsa_signature_parse_compact for details about the encoding. */ @@ -554,7 +554,7 @@ SECP256K1_API int secp256k1_ecdsa_signature_serialize_compact( * * Returns: 1: correct signature * 0: incorrect or unparseable signature - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object * In: sig: the signature being verified. * msghash32: the 32-byte message hash being verified. * The verifier must make sure to apply a cryptographic @@ -585,7 +585,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify( /** Convert a signature to a normalized lower-S form. * * Returns: 1 if sigin was not normalized, 0 if it already was. - * Args: ctx: a secp256k1 context object + * Args: ctx: pointer to a context object * Out: sigout: a pointer to a signature to fill with the normalized form, * or copy if the input was already normalized. (can be NULL if * you're only interested in whether the input was already diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index 7fcce68e68..19457d07c4 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -39,7 +39,7 @@ typedef struct { * Returns: 1 if the public key was fully valid. * 0 if the public key could not be parsed or is invalid. * - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object. * Out: pubkey: pointer to a pubkey object. If 1 is returned, it is set to a * parsed version of input. If not, it's set to an invalid value. * In: input32: pointer to a serialized xonly_pubkey. @@ -54,7 +54,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_parse( * * Returns: 1 always. * - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object. * Out: output32: a pointer to a 32-byte array to place the serialized key in. * In: pubkey: a pointer to a secp256k1_xonly_pubkey containing an initialized public key. */ @@ -69,7 +69,7 @@ SECP256K1_API int secp256k1_xonly_pubkey_serialize( * Returns: <0 if the first public key is less than the second * >0 if the first public key is greater than the second * 0 if the two public keys are equal - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object. * In: pubkey1: first public key to compare * pubkey2: second public key to compare */ diff --git a/include/secp256k1_preallocated.h b/include/secp256k1_preallocated.h index f37744777b..9d71f4af2e 100644 --- a/include/secp256k1_preallocated.h +++ b/include/secp256k1_preallocated.h @@ -52,7 +52,7 @@ SECP256K1_API size_t secp256k1_context_preallocated_size( * in the memory. In simpler words, the prealloc pointer (or any pointer derived * from it) should not be used during the lifetime of the context object. * - * Returns: a newly created context object. + * Returns: pointer to newly created context object. * In: prealloc: a pointer to a rewritable contiguous block of memory of * size at least secp256k1_context_preallocated_size(flags) * bytes, as detailed above. @@ -72,7 +72,7 @@ SECP256K1_API secp256k1_context *secp256k1_context_preallocated_create( * caller-provided memory. * * Returns: the required size of the caller-provided memory block. - * In: ctx: an existing context to copy. + * In: ctx: pointer to a context to copy. */ SECP256K1_API size_t secp256k1_context_preallocated_clone_size( const secp256k1_context *ctx @@ -91,8 +91,8 @@ SECP256K1_API size_t secp256k1_context_preallocated_clone_size( * Cloning secp256k1_context_static is not possible, and should not be emulated by * the caller (e.g., using memcpy). Create a new context instead. * - * Returns: a newly created context object. - * Args: ctx: an existing context to copy (not secp256k1_context_static). + * Returns: pointer to a newly created context object. + * Args: ctx: pointer to a context to copy (not secp256k1_context_static). * In: prealloc: a pointer to a rewritable contiguous block of memory of * size at least secp256k1_context_preallocated_size(flags) * bytes, as detailed above. @@ -118,7 +118,7 @@ SECP256K1_API secp256k1_context *secp256k1_context_preallocated_clone( * preallocated pointer given to secp256k1_context_preallocated_create or * secp256k1_context_preallocated_clone. * - * Args: ctx: an existing context to destroy, constructed using + * Args: ctx: pointer to a context to destroy, constructed using * secp256k1_context_preallocated_create or * secp256k1_context_preallocated_clone * (i.e., not secp256k1_context_static). diff --git a/include/secp256k1_recovery.h b/include/secp256k1_recovery.h index b12ca4d972..341b8bac63 100644 --- a/include/secp256k1_recovery.h +++ b/include/secp256k1_recovery.h @@ -28,9 +28,9 @@ typedef struct { /** Parse a compact ECDSA signature (64 bytes + recovery id). * * Returns: 1 when the signature could be parsed, 0 otherwise - * Args: ctx: a secp256k1 context object - * Out: sig: a pointer to a signature object - * In: input64: a pointer to a 64-byte compact signature + * Args: ctx: pointer to a context object + * Out: sig: pointer to a signature object + * In: input64: pointer to a 64-byte compact signature * recid: the recovery id (0, 1, 2 or 3) */ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_parse_compact( @@ -43,9 +43,9 @@ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_parse_compact( /** Convert a recoverable signature into a normal signature. * * Returns: 1 - * Args: ctx: a secp256k1 context object. - * Out: sig: a pointer to a normal signature. - * In: sigin: a pointer to a recoverable signature. + * Args: ctx: pointer to a context object. + * Out: sig: pointer to a normal signature. + * In: sigin: pointer to a recoverable signature. */ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_convert( const secp256k1_context *ctx, @@ -56,10 +56,10 @@ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_convert( /** Serialize an ECDSA signature in compact format (64 bytes + recovery id). * * Returns: 1 - * Args: ctx: a secp256k1 context object. - * Out: output64: a pointer to a 64-byte array of the compact signature. - * recid: a pointer to an integer to hold the recovery id. - * In: sig: a pointer to an initialized signature object. + * Args: ctx: pointer to a context object. + * Out: output64: pointer to a 64-byte array of the compact signature. + * recid: pointer to an integer to hold the recovery id. + * In: sig: pointer to an initialized signature object. */ SECP256K1_API int secp256k1_ecdsa_recoverable_signature_serialize_compact( const secp256k1_context *ctx, diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h index 9ffdbfa8d3..23163de2fb 100644 --- a/include/secp256k1_schnorrsig.h +++ b/include/secp256k1_schnorrsig.h @@ -169,7 +169,7 @@ SECP256K1_API int secp256k1_schnorrsig_sign_custom( * * Returns: 1: correct signature * 0: incorrect signature - * Args: ctx: a secp256k1 context object. + * Args: ctx: pointer to a context object. * In: sig64: pointer to the 64-byte signature to verify. * msg: the message being verified. Can only be NULL if msglen is 0. * msglen: length of the message From da7bc1b803b14274bc1687514e5da6a3e1cd9765 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 4 Jan 2024 17:38:12 +0000 Subject: [PATCH 316/557] include: in doc, remove article in front of "pointer" --- contrib/lax_der_parsing.h | 4 ++-- include/secp256k1.h | 26 +++++++++++++------------- include/secp256k1_ecdh.h | 2 +- include/secp256k1_ellswift.h | 4 ++-- include/secp256k1_extrakeys.h | 4 ++-- include/secp256k1_preallocated.h | 4 ++-- 6 files changed, 22 insertions(+), 22 deletions(-) diff --git a/contrib/lax_der_parsing.h b/contrib/lax_der_parsing.h index 034a38e6a0..37c8c691f2 100644 --- a/contrib/lax_der_parsing.h +++ b/contrib/lax_der_parsing.h @@ -67,8 +67,8 @@ extern "C" { * * Returns: 1 when the signature could be parsed, 0 otherwise. * Args: ctx: a secp256k1 context object - * Out: sig: a pointer to a signature object - * In: input: a pointer to the signature to be parsed + * Out: sig: pointer to a signature object + * In: input: pointer to the signature to be parsed * inputlen: the length of the array pointed to be input * * This function will accept any valid DER encoded signature, even if the diff --git a/include/secp256k1.h b/include/secp256k1.h index 3a3a97bac8..f4053f2a93 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -351,7 +351,7 @@ SECP256K1_API void secp256k1_context_destroy( * the data pointer argument set to NULL. * * Args: ctx: pointer to a context object. - * In: fun: a pointer to a function to call when an illegal argument is + * In: fun: pointer to a function to call when an illegal argument is * passed to the API, taking a message and an opaque pointer. * (NULL restores the default handler.) * data: the opaque pointer to pass to fun above, must be NULL for the default handler. @@ -378,7 +378,7 @@ SECP256K1_API void secp256k1_context_set_illegal_callback( * crashing. * * Args: ctx: pointer to a context object. - * In: fun: a pointer to a function to call when an internal error occurs, + * In: fun: pointer to a function to call when an internal error occurs, * taking a message and an opaque pointer (NULL restores the * default handler, see secp256k1_context_set_illegal_callback * for details). @@ -407,7 +407,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space *secp256k1_sc /** Destroy a secp256k1 scratch space. * * The pointer may not be used afterwards. - * Args: ctx: a pointer to a context object. + * Args: ctx: pointer to a context object. * scratch: space to destroy */ SECP256K1_API void secp256k1_scratch_space_destroy( @@ -440,13 +440,13 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_parse( * * Returns: 1 always. * Args: ctx: pointer to a context object. - * Out: output: a pointer to a 65-byte (if compressed==0) or 33-byte (if + * Out: output: pointer to a 65-byte (if compressed==0) or 33-byte (if * compressed==1) byte array to place the serialized key * in. - * In/Out: outputlen: a pointer to an integer which is initially set to the + * In/Out: outputlen: pointer to an integer which is initially set to the * size of output, and is overwritten with the written * size. - * In: pubkey: a pointer to a secp256k1_pubkey containing an + * In: pubkey: pointer to a secp256k1_pubkey containing an * initialized public key. * flags: SECP256K1_EC_COMPRESSED if serialization should be in * compressed format, otherwise SECP256K1_EC_UNCOMPRESSED. @@ -499,8 +499,8 @@ SECP256K1_API int secp256k1_ecdsa_signature_parse_compact( * * Returns: 1 when the signature could be parsed, 0 otherwise. * Args: ctx: pointer to a context object - * Out: sig: a pointer to a signature object - * In: input: a pointer to the signature to be parsed + * Out: sig: pointer to a signature object + * In: input: pointer to the signature to be parsed * inputlen: the length of the array pointed to be input * * This function will accept any valid DER encoded signature, even if the @@ -521,12 +521,12 @@ SECP256K1_API int secp256k1_ecdsa_signature_parse_der( * * Returns: 1 if enough space was available to serialize, 0 otherwise * Args: ctx: pointer to a context object - * Out: output: a pointer to an array to store the DER serialization - * In/Out: outputlen: a pointer to a length integer. Initially, this integer + * Out: output: pointer to an array to store the DER serialization + * In/Out: outputlen: pointer to a length integer. Initially, this integer * should be set to the length of output. After the call * it will be set to the length of the serialization (even * if 0 was returned). - * In: sig: a pointer to an initialized signature object + * In: sig: pointer to an initialized signature object */ SECP256K1_API int secp256k1_ecdsa_signature_serialize_der( const secp256k1_context *ctx, @@ -586,11 +586,11 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify( * * Returns: 1 if sigin was not normalized, 0 if it already was. * Args: ctx: pointer to a context object - * Out: sigout: a pointer to a signature to fill with the normalized form, + * Out: sigout: pointer to a signature to fill with the normalized form, * or copy if the input was already normalized. (can be NULL if * you're only interested in whether the input was already * normalized). - * In: sigin: a pointer to a signature to check/normalize (can be identical to sigout) + * In: sigin: pointer to a signature to check/normalize (can be identical to sigout) * * With ECDSA a third-party can forge a second distinct signature of the same * message, given a single initial signature, but without knowing the key. This diff --git a/include/secp256k1_ecdh.h b/include/secp256k1_ecdh.h index 515e174299..4d9da3461d 100644 --- a/include/secp256k1_ecdh.h +++ b/include/secp256k1_ecdh.h @@ -39,7 +39,7 @@ SECP256K1_API const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_de * 0: scalar was invalid (zero or overflow) or hashfp returned 0 * Args: ctx: pointer to a context object. * Out: output: pointer to an array to be filled by hashfp. - * In: pubkey: a pointer to a secp256k1_pubkey containing an initialized public key. + * In: pubkey: pointer to a secp256k1_pubkey containing an initialized public key. * seckey: a 32-byte scalar with which to multiply the point. * hashfp: pointer to a hash function. If NULL, * secp256k1_ecdh_hash_function_sha256 is used diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index f79bd88396..ae37287f82 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -87,7 +87,7 @@ SECP256K1_API const secp256k1_ellswift_xdh_hash_function secp256k1_ellswift_xdh_ * Returns: 1 always. * Args: ctx: pointer to a context object * Out: ell64: pointer to a 64-byte array to be filled - * In: pubkey: a pointer to a secp256k1_pubkey containing an + * In: pubkey: pointer to a secp256k1_pubkey containing an * initialized public key * rnd32: pointer to 32 bytes of randomness * @@ -169,7 +169,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ellswift_create( * (will not be NULL) * ell_b64: pointer to the 64-byte encoded public key of party B * (will not be NULL) - * seckey32: a pointer to our 32-byte secret key + * seckey32: pointer to our 32-byte secret key * party: boolean indicating which party we are: zero if we are * party A, non-zero if we are party B. seckey32 must be * the private key corresponding to that party's ell_?64. diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index 19457d07c4..ad70b92f95 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -55,8 +55,8 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_parse( * Returns: 1 always. * * Args: ctx: pointer to a context object. - * Out: output32: a pointer to a 32-byte array to place the serialized key in. - * In: pubkey: a pointer to a secp256k1_xonly_pubkey containing an initialized public key. + * Out: output32: pointer to a 32-byte array to place the serialized key in. + * In: pubkey: pointer to a secp256k1_xonly_pubkey containing an initialized public key. */ SECP256K1_API int secp256k1_xonly_pubkey_serialize( const secp256k1_context *ctx, diff --git a/include/secp256k1_preallocated.h b/include/secp256k1_preallocated.h index 9d71f4af2e..f2d95c245e 100644 --- a/include/secp256k1_preallocated.h +++ b/include/secp256k1_preallocated.h @@ -53,7 +53,7 @@ SECP256K1_API size_t secp256k1_context_preallocated_size( * from it) should not be used during the lifetime of the context object. * * Returns: pointer to newly created context object. - * In: prealloc: a pointer to a rewritable contiguous block of memory of + * In: prealloc: pointer to a rewritable contiguous block of memory of * size at least secp256k1_context_preallocated_size(flags) * bytes, as detailed above. * flags: which parts of the context to initialize. @@ -93,7 +93,7 @@ SECP256K1_API size_t secp256k1_context_preallocated_clone_size( * * Returns: pointer to a newly created context object. * Args: ctx: pointer to a context to copy (not secp256k1_context_static). - * In: prealloc: a pointer to a rewritable contiguous block of memory of + * In: prealloc: pointer to a rewritable contiguous block of memory of * size at least secp256k1_context_preallocated_size(flags) * bytes, as detailed above. */ From d0ba2abbff2dcd4ca355f648d61fc6520f929949 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 8 Jan 2024 15:50:46 +0100 Subject: [PATCH 317/557] util: Add STATIC_ASSERT macro --- src/util.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/src/util.h b/src/util.h index 187bf1c5e0..154d9ebcf1 100644 --- a/src/util.h +++ b/src/util.h @@ -51,13 +51,27 @@ static void print_buf_plain(const unsigned char *buf, size_t len) { # define SECP256K1_INLINE inline # endif +/** Assert statically that expr is true. + * + * This is a statement-like macro and can only be used inside functions. + */ +#define STATIC_ASSERT(expr) do { \ + switch(0) { \ + case 0: \ + /* If expr evaluates to 0, we have two case labels "0", which is illegal. */ \ + case /* ERROR: static assertion failed */ (expr): \ + ; \ + } \ +} while(0) + /** Assert statically that expr is an integer constant expression, and run stmt. * * Useful for example to enforce that magnitude arguments are constant. */ #define ASSERT_INT_CONST_AND_DO(expr, stmt) do { \ switch(42) { \ - case /* ERROR: integer argument is not constant */ expr: \ + /* C allows only integer constant expressions as case labels. */ \ + case /* ERROR: integer argument is not constant */ (expr): \ break; \ default: ; \ } \ From e53c2d9ffc0b0096881e30e388c3fb040f35e05d Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 8 Jan 2024 15:51:15 +0100 Subject: [PATCH 318/557] Require that sizeof(secp256k1_ge_storage) == 64 This gets rid of an untested code path. Resolves #1352. secp256k1_ge_storage is a struct with two secp256k1_fe_storage fields. The C standard allows the compiler to add padding between the fields and at the end of the struct, but no sane compiler in the end would do this: The only reason to add padding is to ensure alignment, but such padding is never necessary between two fields of the same type. Similarly, secp256k1_fe_storage is a struct with a single array of uintXX_t. No padding is allowed between array elements. Again, C allows the compiler to insert padding at the end of the struct, but there's no absolute reason to do so in this case. For the uintXX_t itself, this guaranteed to have no padding bits, i.e., it's guaranteed to have exactly XX bits. So I claim that for any existing compiler in the real world, sizeof(secp256k1_ge_storage) == 64. --- src/secp256k1.c | 39 ++++++++++++++------------------------- 1 file changed, 14 insertions(+), 25 deletions(-) diff --git a/src/secp256k1.c b/src/secp256k1.c index 4c11e7f0b8..15a5eede67 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -237,36 +237,25 @@ static SECP256K1_INLINE void secp256k1_declassify(const secp256k1_context* ctx, } static int secp256k1_pubkey_load(const secp256k1_context* ctx, secp256k1_ge* ge, const secp256k1_pubkey* pubkey) { - if (sizeof(secp256k1_ge_storage) == 64) { - /* When the secp256k1_ge_storage type is exactly 64 byte, use its - * representation inside secp256k1_pubkey, as conversion is very fast. - * Note that secp256k1_pubkey_save must use the same representation. */ - secp256k1_ge_storage s; - memcpy(&s, &pubkey->data[0], sizeof(s)); - secp256k1_ge_from_storage(ge, &s); - } else { - /* Otherwise, fall back to 32-byte big endian for X and Y. */ - secp256k1_fe x, y; - ARG_CHECK(secp256k1_fe_set_b32_limit(&x, pubkey->data)); - ARG_CHECK(secp256k1_fe_set_b32_limit(&y, pubkey->data + 32)); - secp256k1_ge_set_xy(ge, &x, &y); - } + secp256k1_ge_storage s; + + /* We require that the secp256k1_ge_storage type is exactly 64 bytes. + * This is formally not guaranteed by the C standard, but should hold on any + * sane compiler in the real world. */ + STATIC_ASSERT(sizeof(secp256k1_ge_storage) == 64); + memcpy(&s, &pubkey->data[0], 64); + secp256k1_ge_from_storage(ge, &s); ARG_CHECK(!secp256k1_fe_is_zero(&ge->x)); return 1; } static void secp256k1_pubkey_save(secp256k1_pubkey* pubkey, secp256k1_ge* ge) { - if (sizeof(secp256k1_ge_storage) == 64) { - secp256k1_ge_storage s; - secp256k1_ge_to_storage(&s, ge); - memcpy(&pubkey->data[0], &s, sizeof(s)); - } else { - VERIFY_CHECK(!secp256k1_ge_is_infinity(ge)); - secp256k1_fe_normalize_var(&ge->x); - secp256k1_fe_normalize_var(&ge->y); - secp256k1_fe_get_b32(pubkey->data, &ge->x); - secp256k1_fe_get_b32(pubkey->data + 32, &ge->y); - } + secp256k1_ge_storage s; + + STATIC_ASSERT(sizeof(secp256k1_ge_storage) == 64); + VERIFY_CHECK(!secp256k1_ge_is_infinity(ge)); + secp256k1_ge_to_storage(&s, ge); + memcpy(&pubkey->data[0], &s, 64); } int secp256k1_ec_pubkey_parse(const secp256k1_context* ctx, secp256k1_pubkey* pubkey, const unsigned char *input, size_t inputlen) { From ba5d72d62659f9305d2be30b2ac89ce9480a0e78 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 8 Jan 2024 15:55:05 +0100 Subject: [PATCH 319/557] assumptions: Use new STATIC_ASSERT macro This also splits the big "&&" expression into separate expressions. If we ever see an assertion fail, the error message will tell it precisely which one failed. --- src/assumptions.h | 100 ++++++++++++++++++++++++---------------------- 1 file changed, 52 insertions(+), 48 deletions(-) diff --git a/src/assumptions.h b/src/assumptions.h index 8ed04209e9..7961005350 100644 --- a/src/assumptions.h +++ b/src/assumptions.h @@ -19,65 +19,69 @@ reduce the odds of experiencing an unwelcome surprise. */ -struct secp256k1_assumption_checker { - /* This uses a trick to implement a static assertion in C89: a type with an array of negative size is not - allowed. */ - int dummy_array[( - /* Bytes are 8 bits. */ - (CHAR_BIT == 8) && +#if defined(__has_attribute) +# if __has_attribute(__unavailable__) +__attribute__((__unavailable__("Don't call this function. It only exists because STATIC_ASSERT cannot be used outside a function."))) +# endif +#endif +static void secp256k1_assumption_checker(void) { + /* Bytes are 8 bits. */ + STATIC_ASSERT(CHAR_BIT == 8); - /* No integer promotion for uint32_t. This ensures that we can multiply uintXX_t values where XX >= 32 - without signed overflow, which would be undefined behaviour. */ - (UINT_MAX <= UINT32_MAX) && + /* No integer promotion for uint32_t. This ensures that we can multiply uintXX_t values where XX >= 32 + without signed overflow, which would be undefined behaviour. */ + STATIC_ASSERT(UINT_MAX <= UINT32_MAX); - /* Conversions from unsigned to signed outside of the bounds of the signed type are - implementation-defined. Verify that they function as reinterpreting the lower - bits of the input in two's complement notation. Do this for conversions: - - from uint(N)_t to int(N)_t with negative result - - from uint(2N)_t to int(N)_t with negative result - - from int(2N)_t to int(N)_t with negative result - - from int(2N)_t to int(N)_t with positive result */ + /* Conversions from unsigned to signed outside of the bounds of the signed type are + implementation-defined. Verify that they function as reinterpreting the lower + bits of the input in two's complement notation. Do this for conversions: + - from uint(N)_t to int(N)_t with negative result + - from uint(2N)_t to int(N)_t with negative result + - from int(2N)_t to int(N)_t with negative result + - from int(2N)_t to int(N)_t with positive result */ - /* To int8_t. */ - ((int8_t)(uint8_t)0xAB == (int8_t)-(int8_t)0x55) && - ((int8_t)(uint16_t)0xABCD == (int8_t)-(int8_t)0x33) && - ((int8_t)(int16_t)(uint16_t)0xCDEF == (int8_t)(uint8_t)0xEF) && - ((int8_t)(int16_t)(uint16_t)0x9234 == (int8_t)(uint8_t)0x34) && + /* To int8_t. */ + STATIC_ASSERT(((int8_t)(uint8_t)0xAB == (int8_t)-(int8_t)0x55)); + STATIC_ASSERT((int8_t)(uint16_t)0xABCD == (int8_t)-(int8_t)0x33); + STATIC_ASSERT((int8_t)(int16_t)(uint16_t)0xCDEF == (int8_t)(uint8_t)0xEF); + STATIC_ASSERT((int8_t)(int16_t)(uint16_t)0x9234 == (int8_t)(uint8_t)0x34); - /* To int16_t. */ - ((int16_t)(uint16_t)0xBCDE == (int16_t)-(int16_t)0x4322) && - ((int16_t)(uint32_t)0xA1B2C3D4 == (int16_t)-(int16_t)0x3C2C) && - ((int16_t)(int32_t)(uint32_t)0xC1D2E3F4 == (int16_t)(uint16_t)0xE3F4) && - ((int16_t)(int32_t)(uint32_t)0x92345678 == (int16_t)(uint16_t)0x5678) && + /* To int16_t. */ + STATIC_ASSERT((int16_t)(uint16_t)0xBCDE == (int16_t)-(int16_t)0x4322); + STATIC_ASSERT((int16_t)(uint32_t)0xA1B2C3D4 == (int16_t)-(int16_t)0x3C2C); + STATIC_ASSERT((int16_t)(int32_t)(uint32_t)0xC1D2E3F4 == (int16_t)(uint16_t)0xE3F4); + STATIC_ASSERT((int16_t)(int32_t)(uint32_t)0x92345678 == (int16_t)(uint16_t)0x5678); - /* To int32_t. */ - ((int32_t)(uint32_t)0xB2C3D4E5 == (int32_t)-(int32_t)0x4D3C2B1B) && - ((int32_t)(uint64_t)0xA123B456C789D012ULL == (int32_t)-(int32_t)0x38762FEE) && - ((int32_t)(int64_t)(uint64_t)0xC1D2E3F4A5B6C7D8ULL == (int32_t)(uint32_t)0xA5B6C7D8) && - ((int32_t)(int64_t)(uint64_t)0xABCDEF0123456789ULL == (int32_t)(uint32_t)0x23456789) && + /* To int32_t. */ + STATIC_ASSERT((int32_t)(uint32_t)0xB2C3D4E5 == (int32_t)-(int32_t)0x4D3C2B1B); + STATIC_ASSERT((int32_t)(uint64_t)0xA123B456C789D012ULL == (int32_t)-(int32_t)0x38762FEE); + STATIC_ASSERT((int32_t)(int64_t)(uint64_t)0xC1D2E3F4A5B6C7D8ULL == (int32_t)(uint32_t)0xA5B6C7D8); + STATIC_ASSERT((int32_t)(int64_t)(uint64_t)0xABCDEF0123456789ULL == (int32_t)(uint32_t)0x23456789); - /* To int64_t. */ - ((int64_t)(uint64_t)0xB123C456D789E012ULL == (int64_t)-(int64_t)0x4EDC3BA928761FEEULL) && + /* To int64_t. */ + STATIC_ASSERT((int64_t)(uint64_t)0xB123C456D789E012ULL == (int64_t)-(int64_t)0x4EDC3BA928761FEEULL); #if defined(SECP256K1_INT128_NATIVE) - ((int64_t)(((uint128_t)0xA1234567B8901234ULL << 64) + 0xC5678901D2345678ULL) == (int64_t)-(int64_t)0x3A9876FE2DCBA988ULL) && - (((int64_t)(int128_t)(((uint128_t)0xB1C2D3E4F5A6B7C8ULL << 64) + 0xD9E0F1A2B3C4D5E6ULL)) == (int64_t)(uint64_t)0xD9E0F1A2B3C4D5E6ULL) && - (((int64_t)(int128_t)(((uint128_t)0xABCDEF0123456789ULL << 64) + 0x0123456789ABCDEFULL)) == (int64_t)(uint64_t)0x0123456789ABCDEFULL) && + STATIC_ASSERT((int64_t)(((uint128_t)0xA1234567B8901234ULL << 64) + 0xC5678901D2345678ULL) == (int64_t)-(int64_t)0x3A9876FE2DCBA988ULL); + STATIC_ASSERT(((int64_t)(int128_t)(((uint128_t)0xB1C2D3E4F5A6B7C8ULL << 64) + 0xD9E0F1A2B3C4D5E6ULL)) == (int64_t)(uint64_t)0xD9E0F1A2B3C4D5E6ULL); + STATIC_ASSERT(((int64_t)(int128_t)(((uint128_t)0xABCDEF0123456789ULL << 64) + 0x0123456789ABCDEFULL)) == (int64_t)(uint64_t)0x0123456789ABCDEFULL); - /* To int128_t. */ - ((int128_t)(((uint128_t)0xB1234567C8901234ULL << 64) + 0xD5678901E2345678ULL) == (int128_t)(-(int128_t)0x8E1648B3F50E80DCULL * 0x8E1648B3F50E80DDULL + 0x5EA688D5482F9464ULL)) && + /* To int128_t. */ + STATIC_ASSERT((int128_t)(((uint128_t)0xB1234567C8901234ULL << 64) + 0xD5678901E2345678ULL) == (int128_t)(-(int128_t)0x8E1648B3F50E80DCULL * 0x8E1648B3F50E80DDULL + 0x5EA688D5482F9464ULL)); #endif - /* Right shift on negative signed values is implementation defined. Verify that it - acts as a right shift in two's complement with sign extension (i.e duplicating - the top bit into newly added bits). */ - ((((int8_t)0xE8) >> 2) == (int8_t)(uint8_t)0xFA) && - ((((int16_t)0xE9AC) >> 4) == (int16_t)(uint16_t)0xFE9A) && - ((((int32_t)0x937C918A) >> 9) == (int32_t)(uint32_t)0xFFC9BE48) && - ((((int64_t)0xA8B72231DF9CF4B9ULL) >> 19) == (int64_t)(uint64_t)0xFFFFF516E4463BF3ULL) && + /* Right shift on negative signed values is implementation defined. Verify that it + acts as a right shift in two's complement with sign extension (i.e duplicating + the top bit into newly added bits). */ + STATIC_ASSERT((((int8_t)0xE8) >> 2) == (int8_t)(uint8_t)0xFA); + STATIC_ASSERT((((int16_t)0xE9AC) >> 4) == (int16_t)(uint16_t)0xFE9A); + STATIC_ASSERT((((int32_t)0x937C918A) >> 9) == (int32_t)(uint32_t)0xFFC9BE48); + STATIC_ASSERT((((int64_t)0xA8B72231DF9CF4B9ULL) >> 19) == (int64_t)(uint64_t)0xFFFFF516E4463BF3ULL); #if defined(SECP256K1_INT128_NATIVE) - ((((int128_t)(((uint128_t)0xCD833A65684A0DBCULL << 64) + 0xB349312F71EA7637ULL)) >> 39) == (int128_t)(((uint128_t)0xFFFFFFFFFF9B0674ULL << 64) + 0xCAD0941B79669262ULL)) && + STATIC_ASSERT((((int128_t)(((uint128_t)0xCD833A65684A0DBCULL << 64) + 0xB349312F71EA7637ULL)) >> 39) == (int128_t)(((uint128_t)0xFFFFFFFFFF9B0674ULL << 64) + 0xCAD0941B79669262ULL)); #endif - 1) * 2 - 1]; -}; + + /* This function is not supposed to be called. */ + VERIFY_CHECK(0); +} #endif /* SECP256K1_ASSUMPTIONS_H */ From 9fb7e2f1568c302eb9f69d6e585e6ce129ea0093 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 21 Dec 2023 17:30:16 +0100 Subject: [PATCH 320/557] release process: Style and formatting nits --- doc/release-process.md | 58 ++++++++++++++++++++---------------------- 1 file changed, 27 insertions(+), 31 deletions(-) diff --git a/doc/release-process.md b/doc/release-process.md index 4780f1dc1b..cdf62430df 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -1,4 +1,4 @@ -# Release Process +# Release process This document outlines the process for releasing versions of the form `$MAJOR.$MINOR.$PATCH`. @@ -14,31 +14,30 @@ This process also assumes that there will be no minor releases for old major rel We aim to cut a regular release every 3-4 months, approximately twice as frequent as major Bitcoin Core releases. Every second release should be published one month before the feature freeze of the next major Bitcoin Core release, allowing sufficient time to update the library in Core. -## Sanity Checks +## Sanity checks Perform these checks when reviewing the release PR (see below): 1. Ensure `make distcheck` doesn't fail. -```shell -./autogen.sh && ./configure --enable-dev-mode && make distcheck -``` + ```shell + ./autogen.sh && ./configure --enable-dev-mode && make distcheck + ``` 2. Check installation with autotools: -```shell -dir=$(mktemp -d) -./autogen.sh && ./configure --prefix=$dir && make clean && make install && ls -RlAh $dir -gcc -o ecdsa examples/ecdsa.c $(PKG_CONFIG_PATH=$dir/lib/pkgconfig pkg-config --cflags --libs libsecp256k1) -Wl,-rpath,"$dir/lib" && ./ecdsa -``` + ```shell + dir=$(mktemp -d) + ./autogen.sh && ./configure --prefix=$dir && make clean && make install && ls -RlAh $dir + gcc -o ecdsa examples/ecdsa.c $(PKG_CONFIG_PATH=$dir/lib/pkgconfig pkg-config --cflags --libs libsecp256k1) -Wl,-rpath,"$dir/lib" && ./ecdsa + ``` 3. Check installation with CMake: -```shell -dir=$(mktemp -d) -build=$(mktemp -d) -cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -RlAh $dir -gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rpath,"$dir/lib",-rpath,"$dir/lib64" && ./ecdsa -``` -4. Use the [`check-abi.sh`](/tools/check-abi.sh) tool to ensure there are no unexpected ABI incompatibilities and that the version number and release notes accurately reflect all potential ABI changes. To run this tool, the `abi-dumper` and `abi-compliance-checker` packages are required. - -```shell -tools/check-abi.sh -``` + ```shell + dir=$(mktemp -d) + build=$(mktemp -d) + cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -RlAh $dir + gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rpath,"$dir/lib",-rpath,"$dir/lib64" && ./ecdsa + ``` +4. Use the [`check-abi.sh`](/tools/check-abi.sh) tool to verify that there are no unexpected ABI incompatibilities and that the version number and the release notes accurately reflect all potential ABI changes. To run this tool, the `abi-dumper` and `abi-compliance-checker` packages are required. + ```shell + tools/check-abi.sh + ``` ## Regular release @@ -47,12 +46,12 @@ tools/check-abi.sh * adding a section for the release (make sure that the version number is a link to a diff between the previous and new version), * removing the `[Unreleased]` section header, and * including an entry for `### ABI Compatibility` if it doesn't exist, - * sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and - * if this is not a patch release - * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` in `configure.ac` and + * sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and, + * if this is not a patch release, + * updates `_PKG_VERSION_*` and `_LIB_VERSION_*` in `configure.ac`, and * updates `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_*` in `CMakeLists.txt`. 2. Perform the [sanity checks](#sanity-checks) on the PR branch. -3. After the PR is merged, tag the commit and push it: +3. After the PR is merged, tag the commit, and push the tag: ``` RELEASE_COMMIT= git tag -s v$MAJOR.$MINOR.$PATCH -m "libsecp256k1 $MAJOR.$MINOR.$PATCH" $RELEASE_COMMIT @@ -69,7 +68,7 @@ tools/check-abi.sh ## Maintenance release -Note that bugfixes only need to be backported to releases for which no compatible release without the bug exists. +Note that bug fixes need to be backported only to releases for which no compatible release without the bug exists. 1. If there's no maintenance branch `$MAJOR.$MINOR`, create one: ``` @@ -77,19 +76,16 @@ Note that bugfixes only need to be backported to releases for which no compatibl git push git@github.com:bitcoin-core/secp256k1.git $MAJOR.$MINOR ``` 2. Open a pull request to the `$MAJOR.$MINOR` branch that - * includes the bugfixes, + * includes the bug fixes, * finalizes the release notes similar to a regular release, * increments `_PKG_VERSION_PATCH` and `_LIB_VERSION_REVISION` in `configure.ac` and the `$PATCH` component of `project(libsecp256k1 VERSION ...)` and `${PROJECT_NAME}_LIB_VERSION_REVISION` in `CMakeLists.txt` (with commit message `"release: bump versions for $MAJOR.$MINOR.$PATCH"`, for example). 3. Perform the [sanity checks](#sanity-checks) on the PR branch. -4. After the PRs are merged, update the release branch and tag the commit: +4. After the PRs are merged, update the release branch, tag the commit, and push the tag: ``` git checkout $MAJOR.$MINOR && git pull git tag -s v$MAJOR.$MINOR.$PATCH -m "libsecp256k1 $MAJOR.$MINOR.$PATCH" - ``` -5. Push tag: - ``` git push git@github.com:bitcoin-core/secp256k1.git v$MAJOR.$MINOR.$PATCH ``` 6. Create a new GitHub release with a link to the corresponding entry in [CHANGELOG.md](../CHANGELOG.md). From ad5f589a94cfa23f09ef9424d779a5c9054f6572 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 21 Dec 2023 17:31:36 +0100 Subject: [PATCH 321/557] check-abi: Default to HEAD for new version --- tools/check-abi.sh | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/tools/check-abi.sh b/tools/check-abi.sh index 8f6119cd8e..cc832d24d2 100755 --- a/tools/check-abi.sh +++ b/tools/check-abi.sh @@ -3,7 +3,7 @@ set -eu default_base_version="$(git describe --match "v*.*.*" --abbrev=0)" -default_new_version="master" +default_new_version="HEAD" display_help_and_exit() { echo "Usage: $0 " @@ -33,7 +33,8 @@ else fi checkout_and_build() { - git worktree add -d "$1" "$2" + _orig_dir="$(pwd)" + git worktree add --detach "$1" "$2" cd "$1" mkdir build && cd build cmake -S .. --preset dev-mode \ @@ -45,20 +46,18 @@ checkout_and_build() { -DSECP256K1_BUILD_EXAMPLES=OFF cmake --build . -j "$(nproc)" abi-dumper src/libsecp256k1.so -o ABI.dump -lver "$2" + cd "$_orig_dir" } echo "Comparing $base_version (base version) to $new_version (new version)" echo -original_dir="$(pwd)" - base_source_dir=$(mktemp -d) checkout_and_build "$base_source_dir" "$base_version" new_source_dir=$(mktemp -d) checkout_and_build "$new_source_dir" "$new_version" -cd "$original_dir" abi-compliance-checker -lib libsecp256k1 -old "${base_source_dir}/build/ABI.dump" -new "${new_source_dir}/build/ABI.dump" git worktree remove "$base_source_dir" git worktree remove "$new_source_dir" From b37fdb28ce373e359e4d3a9727693b724db31676 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 9 Jan 2024 00:47:23 +0100 Subject: [PATCH 322/557] check-abi: Minor UI improvements --- tools/check-abi.sh | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/tools/check-abi.sh b/tools/check-abi.sh index cc832d24d2..55c945ac16 100755 --- a/tools/check-abi.sh +++ b/tools/check-abi.sh @@ -6,14 +6,16 @@ default_base_version="$(git describe --match "v*.*.*" --abbrev=0)" default_new_version="HEAD" display_help_and_exit() { - echo "Usage: $0 " + echo "Usage: $0 [ []]" echo "" echo "Description: This script uses the ABI Compliance Checker tool to determine if the ABI" echo " of a new version of libsecp256k1 has changed in a backward-incompatible way." echo "" echo "Options:" - echo " base_ver Specify the base version (default: $default_base_version)" - echo " new_ver Specify the new version (default: $default_new_version)" + echo " base_ver Specify the base version as a git commit-ish" + echo " (default: most recent reachable tag matching \"v.*.*\", currently \"$default_base_version\")" + echo " new_ver Specify the new version as a git commit-ish" + echo " (default: $default_new_version)" echo " -h, --help Display this help message" exit 0 } @@ -23,9 +25,11 @@ if [ "$#" -eq 0 ]; then new_version="$default_new_version" elif [ "$#" -eq 1 ] && { [ "$1" = "-h" ] || [ "$1" = "--help" ]; }; then display_help_and_exit -elif [ "$#" -eq 2 ]; then +elif [ "$#" -eq 1 ] || [ "$#" -eq 2 ]; then base_version="$1" - new_version="$2" + if [ "$#" -eq 2 ]; then + new_version="$2" + fi else echo "Invalid usage. See help:" echo "" @@ -52,10 +56,10 @@ checkout_and_build() { echo "Comparing $base_version (base version) to $new_version (new version)" echo -base_source_dir=$(mktemp -d) +base_source_dir="$(mktemp -d)" checkout_and_build "$base_source_dir" "$base_version" -new_source_dir=$(mktemp -d) +new_source_dir="$(mktemp -d)" checkout_and_build "$new_source_dir" "$new_version" abi-compliance-checker -lib libsecp256k1 -old "${base_source_dir}/build/ABI.dump" -new "${new_source_dir}/build/ABI.dump" From 89ec583ccf01d9201fdab6a6c1682e6c27224b16 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 16 Jan 2024 14:36:41 +0100 Subject: [PATCH 323/557] build: Clean up handling of module dependencies This also makes the order in which module options are processed consistent between CMake and autotools (the reverse order of the listing printed to stdout). --- CMakeLists.txt | 30 +++++++++++++++++++----------- configure.ac | 26 +++++++++++++------------- 2 files changed, 32 insertions(+), 24 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index cf0dc3ba93..79d9bd4802 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -51,29 +51,37 @@ endif() option(SECP256K1_INSTALL "Enable installation." ${PROJECT_IS_TOP_LEVEL}) -option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) -if(SECP256K1_ENABLE_MODULE_ECDH) - add_compile_definitions(ENABLE_MODULE_ECDH=1) -endif() +## Modules +# We declare all options before processing them, to make sure we can express +# dependendencies while processing. +option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) option(SECP256K1_ENABLE_MODULE_RECOVERY "Enable ECDSA pubkey recovery module." OFF) -if(SECP256K1_ENABLE_MODULE_RECOVERY) - add_compile_definitions(ENABLE_MODULE_RECOVERY=1) -endif() - option(SECP256K1_ENABLE_MODULE_EXTRAKEYS "Enable extrakeys module." ON) option(SECP256K1_ENABLE_MODULE_SCHNORRSIG "Enable schnorrsig module." ON) +option(SECP256K1_ENABLE_MODULE_ELLSWIFT "Enable ElligatorSwift module." ON) + +# Processing must be done in a topological sorting of the dependency graph +# (dependent module first). +if(SECP256K1_ENABLE_MODULE_ELLSWIFT) + add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) +endif() + if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON) add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1) endif() + if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) add_compile_definitions(ENABLE_MODULE_EXTRAKEYS=1) endif() -option(SECP256K1_ENABLE_MODULE_ELLSWIFT "Enable ElligatorSwift module." ON) -if(SECP256K1_ENABLE_MODULE_ELLSWIFT) - add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) +if(SECP256K1_ENABLE_MODULE_RECOVERY) + add_compile_definitions(ENABLE_MODULE_RECOVERY=1) +endif() + +if(SECP256K1_ENABLE_MODULE_ECDH) + add_compile_definitions(ENABLE_MODULE_ECDH=1) endif() option(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS "Enable external default callback functions." OFF) diff --git a/configure.ac b/configure.ac index 2c1596775e..8e6b0558dd 100644 --- a/configure.ac +++ b/configure.ac @@ -387,29 +387,29 @@ SECP_CFLAGS="$SECP_CFLAGS $WERROR_CFLAGS" ### Handle module options ### -if test x"$enable_module_ecdh" = x"yes"; then - SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_ECDH=1" -fi - -if test x"$enable_module_recovery" = x"yes"; then - SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_RECOVERY=1" +# Processing must be done in a reverse topological sorting of the dependency graph +# (dependent module first). +if test x"$enable_module_ellswift" = x"yes"; then + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_ELLSWIFT=1" fi if test x"$enable_module_schnorrsig" = x"yes"; then - SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_SCHNORRSIG=1" enable_module_extrakeys=yes + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_SCHNORRSIG=1" fi -if test x"$enable_module_ellswift" = x"yes"; then - SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_ELLSWIFT=1" -fi - -# Test if extrakeys is set after the schnorrsig module to allow the schnorrsig -# module to set enable_module_extrakeys=yes if test x"$enable_module_extrakeys" = x"yes"; then SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_EXTRAKEYS=1" fi +if test x"$enable_module_recovery" = x"yes"; then + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_RECOVERY=1" +fi + +if test x"$enable_module_ecdh" = x"yes"; then + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_ECDH=1" +fi + if test x"$enable_external_default_callbacks" = x"yes"; then SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DUSE_EXTERNAL_DEFAULT_CALLBACKS=1" fi From e6822678ea05c431b4f43be9dfbde54e0f7f645b Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 16 Jan 2024 14:51:00 +0100 Subject: [PATCH 324/557] build: Error if required module explicitly off --- CMakeLists.txt | 3 +++ configure.ac | 3 +++ 2 files changed, 6 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 79d9bd4802..42486a808c 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -68,6 +68,9 @@ if(SECP256K1_ENABLE_MODULE_ELLSWIFT) endif() if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) + if(DEFINED SECP256K1_ENABLE_MODULE_EXTRAKEYS AND NOT SECP256K1_ENABLE_MODULE_EXTRAKEYS) + message(FATAL_ERROR "Module dependency error: You have disabled the extrakeys module explicitly, but it is required by the schnorrsig module.") + endif() set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON) add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1) endif() diff --git a/configure.ac b/configure.ac index 8e6b0558dd..158ed5d769 100644 --- a/configure.ac +++ b/configure.ac @@ -394,6 +394,9 @@ if test x"$enable_module_ellswift" = x"yes"; then fi if test x"$enable_module_schnorrsig" = x"yes"; then + if test x"$enable_module_extrakeys" = x"no"; then + AC_MSG_ERROR([Module dependency error: You have disabled the extrakeys module explicitly, but it is required by the schnorrsig module.]) + fi enable_module_extrakeys=yes SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_SCHNORRSIG=1" fi From 3777e3f36a61a05da19d5c6575fdd59288848948 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 17 Jan 2024 15:19:53 +0100 Subject: [PATCH 325/557] cmake: Recommend native CMake commands in README Resolves one item in #1235. Closes #1294. --- README.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/README.md b/README.md index 4013e6a93b..6e88eb4ecb 100644 --- a/README.md +++ b/README.md @@ -79,9 +79,9 @@ To maintain a pristine source tree, CMake encourages to perform an out-of-source $ mkdir build && cd build $ cmake .. - $ make - $ make check # run the test suite - $ sudo make install # optional + $ cmake --build . + $ ctest # run the test suite + $ sudo cmake --build . --target install # optional To compile optional modules (such as Schnorr signatures), you need to run `cmake` with additional flags (such as `-DSECP256K1_ENABLE_MODULE_SCHNORRSIG=ON`). Run `cmake .. -LH` to see the full list of available flags. From 51df2d9ab3a61dafee2c12b39e651d93a6b5be76 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 17 Jan 2024 16:54:04 +0100 Subject: [PATCH 326/557] tests: Drop redundant _scalar_check_overflow calls Redundant since d23da6d55714271c720fee58fbff5e5ef2fe193f. --- src/tests.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/src/tests.c b/src/tests.c index 32946439ff..e653aeea58 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2927,18 +2927,14 @@ static void run_scalar_tests(void) { secp256k1_scalar_set_b32(&r2, res[i][1], &overflow); CHECK(!overflow); secp256k1_scalar_mul(&z, &x, &y); - CHECK(!secp256k1_scalar_check_overflow(&z)); CHECK(secp256k1_scalar_eq(&r1, &z)); if (!secp256k1_scalar_is_zero(&y)) { secp256k1_scalar_inverse(&zz, &y); - CHECK(!secp256k1_scalar_check_overflow(&zz)); secp256k1_scalar_inverse_var(&zzv, &y); CHECK(secp256k1_scalar_eq(&zzv, &zz)); secp256k1_scalar_mul(&z, &z, &zz); - CHECK(!secp256k1_scalar_check_overflow(&z)); CHECK(secp256k1_scalar_eq(&x, &z)); secp256k1_scalar_mul(&zz, &zz, &y); - CHECK(!secp256k1_scalar_check_overflow(&zz)); CHECK(secp256k1_scalar_eq(&secp256k1_scalar_one, &zz)); } secp256k1_scalar_mul(&z, &x, &x); From 94a14d5290e6ca805f23b1a7baca197d15e55f84 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 25 Jan 2024 12:09:47 +0000 Subject: [PATCH 327/557] ci: Update cache action This change fixes deprecation warnings for Node.js 16 actions in the GHA CI. See: - https://github.com/marketplace/actions/cache - https://github.com/actions/cache/releases/tag/v4.0.0 --- .github/actions/install-homebrew-valgrind/action.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/actions/install-homebrew-valgrind/action.yml b/.github/actions/install-homebrew-valgrind/action.yml index 094ff891f7..ce10eb2686 100644 --- a/.github/actions/install-homebrew-valgrind/action.yml +++ b/.github/actions/install-homebrew-valgrind/action.yml @@ -16,7 +16,7 @@ runs: cat valgrind_fingerprint shell: bash - - uses: actions/cache@v3 + - uses: actions/cache@v4 id: cache with: path: ${{ env.CI_HOMEBREW_CELLAR_VALGRIND }} From 218f0cc93bd77eae926f4c4e259951b92bf00aec Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 31 Jan 2024 20:50:33 +0000 Subject: [PATCH 328/557] ci: Add native macOS arm64 job --- .github/workflows/ci.yml | 62 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 59 insertions(+), 3 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 4ad905af52..c230dc4ae9 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -585,10 +585,10 @@ jobs: run: env if: ${{ always() }} - macos-native: - name: "x86_64: macOS Monterey" + x86_64-macos-native: + name: "x86_64: macOS Monterey, Valgrind" # See: https://github.com/actions/runner-images#available-images. - runs-on: macos-12 # Use M1 once available https://github.com/github/roadmap/issues/528 + runs-on: macos-12 env: CC: 'clang' @@ -644,6 +644,62 @@ jobs: run: env if: ${{ always() }} + arm64-macos-native: + name: "ARM64: macOS Sonoma" + # See: https://github.com/actions/runner-images#available-images. + runs-on: macos-14 + + env: + CC: 'clang' + HOMEBREW_NO_AUTO_UPDATE: 1 + HOMEBREW_NO_INSTALL_CLEANUP: 1 + WITH_VALGRIND: 'no' + CTIMETESTS: 'no' + + strategy: + fail-fast: false + matrix: + env_vars: + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128_struct', ECMULTGENPRECISION: 2, ECMULTWINDOW: 4 } + - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY' } + - BUILD: 'distcheck' + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Install Homebrew packages + run: | + brew install automake libtool gcc + ln -s $(brew --prefix gcc)/bin/gcc-?? /usr/local/bin/gcc + + - name: CI script + env: ${{ matrix.env_vars }} + run: ./ci/ci.sh + + - run: cat tests.log || true + if: ${{ always() }} + - run: cat noverify_tests.log || true + if: ${{ always() }} + - run: cat exhaustive_tests.log || true + if: ${{ always() }} + - run: cat ctime_tests.log || true + if: ${{ always() }} + - run: cat bench.log || true + if: ${{ always() }} + - run: cat config.log || true + if: ${{ always() }} + - run: cat test_env.log || true + if: ${{ always() }} + - name: CI env + run: env + if: ${{ always() }} + win64-native: name: ${{ matrix.configuration.job_name }} # See: https://github.com/actions/runner-images#available-images. From 00111c9c563367cf5163cda1ce6b9c6f032cea43 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 1 Feb 2024 00:47:12 +0100 Subject: [PATCH 329/557] tests: add missing fe comparison checks for inverse field test cases `check_fe_equal` is a wrapper around `secp256k1_fe_equal` that takes care of normalization. Since it doesn't check anything itself, the CHECK macro is needed at the call-sites to actually ensure equality. --- src/tests.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/tests.c b/src/tests.c index e653aeea58..a64c30736f 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3618,9 +3618,9 @@ static void run_inverse_tests(void) for (i = 0; (size_t)i < sizeof(fe_cases)/sizeof(fe_cases[0]); ++i) { for (var = 0; var <= 1; ++var) { test_inverse_field(&x_fe, &fe_cases[i][0], var); - check_fe_equal(&x_fe, &fe_cases[i][1]); + CHECK(check_fe_equal(&x_fe, &fe_cases[i][1])); test_inverse_field(&x_fe, &fe_cases[i][1], var); - check_fe_equal(&x_fe, &fe_cases[i][0]); + CHECK(check_fe_equal(&x_fe, &fe_cases[i][0])); } } for (i = 0; (size_t)i < sizeof(scalar_cases)/sizeof(scalar_cases[0]); ++i) { From e7bdddd9c9c4b9f4f44420f3c7eeaef44f0c82ff Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 1 Feb 2024 15:33:02 +0100 Subject: [PATCH 330/557] refactor: rename `check_fe_equal` -> `fe_equal` As this function doesn't do any checking, it's better to rename it, so that it's less likely to miss the needed `CHECK`. --- src/modules/ellswift/tests_impl.h | 8 ++++---- src/tests.c | 28 ++++++++++++++-------------- 2 files changed, 18 insertions(+), 18 deletions(-) diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index 7d1efbc492..f96e3a1268 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -188,9 +188,9 @@ void run_ellswift_tests(void) { CHECK(ret == ((testcase->enc_bitmap >> c) & 1)); if (ret) { secp256k1_fe x2; - CHECK(check_fe_equal(&t, &testcase->encs[c])); + CHECK(fe_equal(&t, &testcase->encs[c])); secp256k1_ellswift_xswiftec_var(&x2, &testcase->u, &testcase->encs[c]); - CHECK(check_fe_equal(&testcase->x, &x2)); + CHECK(fe_equal(&testcase->x, &x2)); } } } @@ -203,7 +203,7 @@ void run_ellswift_tests(void) { CHECK(ret); ret = secp256k1_pubkey_load(CTX, &ge, &pubkey); CHECK(ret); - CHECK(check_fe_equal(&testcase->x, &ge.x)); + CHECK(fe_equal(&testcase->x, &ge.x)); CHECK(secp256k1_fe_is_odd(&ge.y) == testcase->odd_y); } for (i = 0; (unsigned)i < sizeof(ellswift_xdh_tests_bip324) / sizeof(ellswift_xdh_tests_bip324[0]); ++i) { @@ -290,7 +290,7 @@ void run_ellswift_tests(void) { secp256k1_ecmult(&resj, &decj, &sec, NULL); secp256k1_ge_set_gej(&res, &resj); /* Compare. */ - CHECK(check_fe_equal(&res.x, &share_x)); + CHECK(fe_equal(&res.x, &share_x)); } /* Verify the joint behavior of secp256k1_ellswift_xdh */ for (i = 0; i < 200 * COUNT; i++) { diff --git a/src/tests.c b/src/tests.c index a64c30736f..1caee85e15 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2953,7 +2953,7 @@ static void random_fe_non_square(secp256k1_fe *ns) { } } -static int check_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { +static int fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { secp256k1_fe an = *a; secp256k1_fe bn = *b; secp256k1_fe_normalize_weak(&an); @@ -3090,7 +3090,7 @@ static void run_field_half(void) { #endif secp256k1_fe_normalize_weak(&u); secp256k1_fe_add(&u, &u); - CHECK(check_fe_equal(&t, &u)); + CHECK(fe_equal(&t, &u)); /* Check worst-case input: ensure the LSB is 1 so that P will be added, * which will also cause all carries to be 1, since all limbs that can @@ -3109,7 +3109,7 @@ static void run_field_half(void) { #endif secp256k1_fe_normalize_weak(&u); secp256k1_fe_add(&u, &u); - CHECK(check_fe_equal(&t, &u)); + CHECK(fe_equal(&t, &u)); } } @@ -3136,7 +3136,7 @@ static void run_field_misc(void) { secp256k1_fe_add(&z, &q); /* z = x+v */ q = x; /* q = x */ secp256k1_fe_add_int(&q, v); /* q = x+v */ - CHECK(check_fe_equal(&q, &z)); + CHECK(fe_equal(&q, &z)); /* Test the fe equality and comparison operations. */ CHECK(secp256k1_fe_cmp_var(&x, &x) == 0); CHECK(secp256k1_fe_equal(&x, &x)); @@ -3196,27 +3196,27 @@ static void run_field_misc(void) { secp256k1_fe_add(&y, &x); z = x; secp256k1_fe_mul_int(&z, 3); - CHECK(check_fe_equal(&y, &z)); + CHECK(fe_equal(&y, &z)); secp256k1_fe_add(&y, &x); secp256k1_fe_add(&z, &x); - CHECK(check_fe_equal(&z, &y)); + CHECK(fe_equal(&z, &y)); z = x; secp256k1_fe_mul_int(&z, 5); secp256k1_fe_mul(&q, &x, &fe5); - CHECK(check_fe_equal(&z, &q)); + CHECK(fe_equal(&z, &q)); secp256k1_fe_negate(&x, &x, 1); secp256k1_fe_add(&z, &x); secp256k1_fe_add(&q, &x); - CHECK(check_fe_equal(&y, &z)); - CHECK(check_fe_equal(&q, &y)); + CHECK(fe_equal(&y, &z)); + CHECK(fe_equal(&q, &y)); /* Check secp256k1_fe_half. */ z = x; secp256k1_fe_half(&z); secp256k1_fe_add(&z, &z); - CHECK(check_fe_equal(&x, &z)); + CHECK(fe_equal(&x, &z)); secp256k1_fe_add(&z, &z); secp256k1_fe_half(&z); - CHECK(check_fe_equal(&x, &z)); + CHECK(fe_equal(&x, &z)); } } @@ -3618,9 +3618,9 @@ static void run_inverse_tests(void) for (i = 0; (size_t)i < sizeof(fe_cases)/sizeof(fe_cases[0]); ++i) { for (var = 0; var <= 1; ++var) { test_inverse_field(&x_fe, &fe_cases[i][0], var); - CHECK(check_fe_equal(&x_fe, &fe_cases[i][1])); + CHECK(fe_equal(&x_fe, &fe_cases[i][1])); test_inverse_field(&x_fe, &fe_cases[i][1], var); - CHECK(check_fe_equal(&x_fe, &fe_cases[i][0])); + CHECK(fe_equal(&x_fe, &fe_cases[i][0])); } } for (i = 0; (size_t)i < sizeof(scalar_cases)/sizeof(scalar_cases[0]); ++i) { @@ -4556,7 +4556,7 @@ static void ecmult_const_mult_xonly(void) { /* Check that resj's X coordinate corresponds with resx. */ secp256k1_fe_sqr(&v, &resj.z); secp256k1_fe_mul(&v, &v, &resx); - CHECK(check_fe_equal(&v, &resj.x)); + CHECK(fe_equal(&v, &resj.x)); } /* Test that secp256k1_ecmult_const_xonly correctly rejects X coordinates not on curve. */ From e7ea32e30a9f628855c4ddc7533ebd5d2013dc40 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Thu, 22 Feb 2024 20:11:51 +0000 Subject: [PATCH 331/557] msan: Add SECP256K1_CHECKMEM_MSAN_DEFINE which applies to memory sanitizer and not valgrind --- src/checkmem.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/checkmem.h b/src/checkmem.h index f2169decfc..7e333ce5f3 100644 --- a/src/checkmem.h +++ b/src/checkmem.h @@ -30,6 +30,8 @@ * - SECP256K1_CHECKMEM_DEFINE(p, len): * - marks the len-byte memory pointed to by p as defined data (public data, in the * context of constant-time checking). + * - SECP256K1_CHECKMEM_MSAN_DEFINE(p, len): + * - Like SECP256K1_CHECKMEM_DEFINE, but applies only to memory_sanitizer. * */ @@ -48,11 +50,16 @@ # define SECP256K1_CHECKMEM_ENABLED 1 # define SECP256K1_CHECKMEM_UNDEFINE(p, len) __msan_allocated_memory((p), (len)) # define SECP256K1_CHECKMEM_DEFINE(p, len) __msan_unpoison((p), (len)) +# define SECP256K1_CHECKMEM_MSAN_DEFINE(p, len) __msan_unpoison((p), (len)) # define SECP256K1_CHECKMEM_CHECK(p, len) __msan_check_mem_is_initialized((p), (len)) # define SECP256K1_CHECKMEM_RUNNING() (1) # endif #endif +#if !defined SECP256K1_CHECKMEM_MSAN_DEFINE +# define SECP256K1_CHECKMEM_MSAN_DEFINE(p, len) SECP256K1_CHECKMEM_NOOP((p), (len)) +#endif + /* If valgrind integration is desired (through the VALGRIND define), implement the * SECP256K1_CHECKMEM_* macros using valgrind. */ #if !defined SECP256K1_CHECKMEM_ENABLED From 31ba40494428dcbf2eb5eb6f2328eca91b0b0746 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Wed, 21 Feb 2024 16:16:16 +0000 Subject: [PATCH 332/557] msan: notate variable assignments from assembly code msan isn't smart enough to see that these are set without some help. --- src/scalar_4x64_impl.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 7b9c542f07..ede31a06ff 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -462,6 +462,14 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l) : "S"(l), "i"(SECP256K1_N_C_0), "i"(SECP256K1_N_C_1) : "rax", "rdx", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "cc"); + SECP256K1_CHECKMEM_MSAN_DEFINE(&m0, sizeof(m0)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&m1, sizeof(m1)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&m2, sizeof(m2)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&m3, sizeof(m3)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&m4, sizeof(m4)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&m5, sizeof(m5)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&m6, sizeof(m6)); + /* Reduce 385 bits into 258. */ __asm__ __volatile__( /* Preload */ @@ -541,6 +549,12 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l) : "g"(m0), "g"(m1), "g"(m2), "g"(m3), "g"(m4), "g"(m5), "g"(m6), "i"(SECP256K1_N_C_0), "i"(SECP256K1_N_C_1) : "rax", "rdx", "r8", "r9", "r10", "r11", "r12", "r13", "cc"); + SECP256K1_CHECKMEM_MSAN_DEFINE(&p0, sizeof(p0)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&p1, sizeof(p1)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&p2, sizeof(p2)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&p3, sizeof(p3)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&p4, sizeof(p4)); + /* Reduce 258 bits into 256. */ __asm__ __volatile__( /* Preload */ @@ -586,6 +600,10 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l) : "=g"(c) : "g"(p0), "g"(p1), "g"(p2), "g"(p3), "g"(p4), "D"(r), "i"(SECP256K1_N_C_0), "i"(SECP256K1_N_C_1) : "rax", "rdx", "r8", "r9", "r10", "cc", "memory"); + + SECP256K1_CHECKMEM_MSAN_DEFINE(r, sizeof(*r)); + SECP256K1_CHECKMEM_MSAN_DEFINE(&c, sizeof(c)); + #else secp256k1_uint128 c128; uint64_t c, c0, c1, c2; From 11420a7a2836114393b70f4d10bb81921403a360 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 1 Feb 2024 00:28:45 +0100 Subject: [PATCH 333/557] tests: improve fe_sqr test Currently the `run_sqr` test doesn't do anything with the result of the `fe_sqr` call. Improve that by checking that the equation `(x+y)*(x-y) = x^2 - y^2` holds for some random values y, as suggested in issue #1471 by real-or-random. The existing loop for generating the x values is kept as-is. --- src/tests.c | 33 +++++++++++++++++++++++---------- 1 file changed, 23 insertions(+), 10 deletions(-) diff --git a/src/tests.c b/src/tests.c index 1caee85e15..85b4881295 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3285,18 +3285,31 @@ static void run_fe_mul(void) { } static void run_sqr(void) { - secp256k1_fe x, s; + int i; + secp256k1_fe x, y, lhs, rhs, tmp; - { - int i; - secp256k1_fe_set_int(&x, 1); - secp256k1_fe_negate(&x, &x, 1); + secp256k1_fe_set_int(&x, 1); + secp256k1_fe_negate(&x, &x, 1); - for (i = 1; i <= 512; ++i) { - secp256k1_fe_mul_int(&x, 2); - secp256k1_fe_normalize(&x); - secp256k1_fe_sqr(&s, &x); - } + for (i = 1; i <= 512; ++i) { + secp256k1_fe_mul_int(&x, 2); + secp256k1_fe_normalize(&x); + + /* Check that (x+y)*(x-y) = x^2 - y*2 for some random values y */ + random_fe_test(&y); + + lhs = x; + secp256k1_fe_add(&lhs, &y); /* lhs = x+y */ + secp256k1_fe_negate(&tmp, &y, 1); /* tmp = -y */ + secp256k1_fe_add(&tmp, &x); /* tmp = x-y */ + secp256k1_fe_mul(&lhs, &lhs, &tmp); /* lhs = (x+y)*(x-y) */ + + secp256k1_fe_sqr(&rhs, &x); /* rhs = x^2 */ + secp256k1_fe_sqr(&tmp, &y); /* tmp = y^2 */ + secp256k1_fe_negate(&tmp, &tmp, 1); /* tmp = -y^2 */ + secp256k1_fe_add(&rhs, &tmp); /* rhs = x^2 - y^2 */ + + CHECK(fe_equal(&lhs, &rhs)); } } From 2028069df2e16a05b332ae24c7ae63791f461063 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 1 Feb 2024 14:46:31 +0100 Subject: [PATCH 334/557] doc: clarify input requirements for secp256k1_fe_mul "... neither can be equal to b." could suggest that the values are not allowed to be identical, but what is meant here is that the mentioned inputs shouldn't point to the same object. --- src/field.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/field.h b/src/field.h index bd589bf8a8..8c65a3aff6 100644 --- a/src/field.h +++ b/src/field.h @@ -255,8 +255,8 @@ static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a); /** Multiply two field elements. * * On input, a and b must be valid field elements; r does not need to be initialized. - * r and a may point to the same object, but neither can be equal to b. The magnitudes - * of a and b must not exceed 8. + * r and a may point to the same object, but neither may point to the object pointed + * to by b. The magnitudes of a and b must not exceed 8. * Performs {r = a * b} * On output, r will have magnitude 1, but won't be normalized. */ From 84a93de4d2ba1063aa3d67d592db8ae0bb4a307e Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 19 Mar 2024 17:15:14 +0100 Subject: [PATCH 335/557] ci: Add workaround for ASLR bug in sanitizers Fixes #1506. --- .github/actions/run-in-docker-action/action.yml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index dbfaa4fece..126abc2d7f 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -36,6 +36,10 @@ runs: load: true cache-from: type=gha + - # Workaround for https://github.com/google/sanitizers/issues/1614 . + run: sudo sysctl -w vm.mmap_rnd_bits=28 + shell: bash + - # Tell Docker to pass environment variables in `env` into the container. run: > docker run \ From a5e8ab248447864873eae9b00f94175594477d66 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 19 Mar 2024 17:17:13 +0100 Subject: [PATCH 336/557] ci: Add sanitizer env variables to debug output --- ci/ci.sh | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/ci/ci.sh b/ci/ci.sh index 9cc715955e..3999af4f1c 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -17,7 +17,8 @@ print_environment() { SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS\ EXAMPLES \ HOST WRAPPER_CMD \ - CC CFLAGS CPPFLAGS AR NM + CC CFLAGS CPPFLAGS AR NM \ + UBSAN_OPTIONS ASAN_OPTIONS LSAN_OPTIONS do eval "isset=\${$var+x}" if [ -n "$isset" ]; then From a61339149f1faae3c5d8e9ba533d96ff1ca2c32d Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Fri, 29 Mar 2024 15:04:39 +0000 Subject: [PATCH 337/557] change inconsistent array param to pointer The behavior is identical, but the former syntax suggests guarantees that don't actually exist. --- src/scalar_4x64_impl.h | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index ede31a06ff..835b7fa6f8 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -681,7 +681,7 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l) secp256k1_scalar_reduce(r, c + secp256k1_scalar_check_overflow(r)); } -static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, const secp256k1_scalar *b) { +static void secp256k1_scalar_mul_512(uint64_t *l8, const secp256k1_scalar *a, const secp256k1_scalar *b) { #ifdef USE_ASM_X86_64 const uint64_t *pb = b->d; __asm__ __volatile__( @@ -696,7 +696,7 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c /* (rax,rdx) = a0 * b0 */ "movq %%r15, %%rax\n" "mulq %%r11\n" - /* Extract l0 */ + /* Extract l8[0] */ "movq %%rax, 0(%%rsi)\n" /* (r8,r9,r10) = (rdx) */ "movq %%rdx, %%r8\n" @@ -714,7 +714,7 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c "addq %%rax, %%r8\n" "adcq %%rdx, %%r9\n" "adcq $0, %%r10\n" - /* Extract l1 */ + /* Extract l8[1] */ "movq %%r8, 8(%%rsi)\n" "xorq %%r8, %%r8\n" /* (r9,r10,r8) += a0 * b2 */ @@ -735,7 +735,7 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c "addq %%rax, %%r9\n" "adcq %%rdx, %%r10\n" "adcq $0, %%r8\n" - /* Extract l2 */ + /* Extract l8[2] */ "movq %%r9, 16(%%rsi)\n" "xorq %%r9, %%r9\n" /* (r10,r8,r9) += a0 * b3 */ @@ -764,7 +764,7 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c "addq %%rax, %%r10\n" "adcq %%rdx, %%r8\n" "adcq $0, %%r9\n" - /* Extract l3 */ + /* Extract l8[3] */ "movq %%r10, 24(%%rsi)\n" "xorq %%r10, %%r10\n" /* (r8,r9,r10) += a1 * b3 */ @@ -785,7 +785,7 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c "addq %%rax, %%r8\n" "adcq %%rdx, %%r9\n" "adcq $0, %%r10\n" - /* Extract l4 */ + /* Extract l8[4] */ "movq %%r8, 32(%%rsi)\n" "xorq %%r8, %%r8\n" /* (r9,r10,r8) += a2 * b3 */ @@ -800,51 +800,51 @@ static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar *a, c "addq %%rax, %%r9\n" "adcq %%rdx, %%r10\n" "adcq $0, %%r8\n" - /* Extract l5 */ + /* Extract l8[5] */ "movq %%r9, 40(%%rsi)\n" /* (r10,r8) += a3 * b3 */ "movq %%r15, %%rax\n" "mulq %%r14\n" "addq %%rax, %%r10\n" "adcq %%rdx, %%r8\n" - /* Extract l6 */ + /* Extract l8[6] */ "movq %%r10, 48(%%rsi)\n" - /* Extract l7 */ + /* Extract l8[7] */ "movq %%r8, 56(%%rsi)\n" : "+d"(pb) - : "S"(l), "D"(a->d) + : "S"(l8), "D"(a->d) : "rax", "rbx", "rcx", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "cc", "memory"); #else /* 160 bit accumulator. */ uint64_t c0 = 0, c1 = 0; uint32_t c2 = 0; - /* l[0..7] = a[0..3] * b[0..3]. */ + /* l8[0..7] = a[0..3] * b[0..3]. */ muladd_fast(a->d[0], b->d[0]); - extract_fast(l[0]); + extract_fast(l8[0]); muladd(a->d[0], b->d[1]); muladd(a->d[1], b->d[0]); - extract(l[1]); + extract(l8[1]); muladd(a->d[0], b->d[2]); muladd(a->d[1], b->d[1]); muladd(a->d[2], b->d[0]); - extract(l[2]); + extract(l8[2]); muladd(a->d[0], b->d[3]); muladd(a->d[1], b->d[2]); muladd(a->d[2], b->d[1]); muladd(a->d[3], b->d[0]); - extract(l[3]); + extract(l8[3]); muladd(a->d[1], b->d[3]); muladd(a->d[2], b->d[2]); muladd(a->d[3], b->d[1]); - extract(l[4]); + extract(l8[4]); muladd(a->d[2], b->d[3]); muladd(a->d[3], b->d[2]); - extract(l[5]); + extract(l8[5]); muladd_fast(a->d[3], b->d[3]); - extract_fast(l[6]); + extract_fast(l8[6]); VERIFY_CHECK(c1 == 0); - l[7] = c0; + l8[7] = c0; #endif } From f7f0184ba1358cb8659607d2d0105628cb130e4f Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Wed, 27 Mar 2024 15:18:57 +0000 Subject: [PATCH 338/557] msan: notate more variable assignments from assembly code This was missed in 31ba40494428dcbf2eb5eb6f2328eca91b0b0746 because older versions of clang did not complain about it. But clang-17, at least, does. --- src/scalar_4x64_impl.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 835b7fa6f8..82cd957f16 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -814,6 +814,9 @@ static void secp256k1_scalar_mul_512(uint64_t *l8, const secp256k1_scalar *a, co : "+d"(pb) : "S"(l8), "D"(a->d) : "rax", "rbx", "rcx", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "cc", "memory"); + + SECP256K1_CHECKMEM_MSAN_DEFINE(l8, sizeof(*l8) * 8); + #else /* 160 bit accumulator. */ uint64_t c0 = 0, c1 = 0; From a85e2233e701c3e3dd1673d187d7d8806de387ff Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 4 Apr 2024 11:40:19 +0200 Subject: [PATCH 339/557] ci: Note affected clangs in comment on ASLR quirk Resolves #1506. --- .github/actions/run-in-docker-action/action.yml | 1 + 1 file changed, 1 insertion(+) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index 126abc2d7f..74933686a0 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -37,6 +37,7 @@ runs: cache-from: type=gha - # Workaround for https://github.com/google/sanitizers/issues/1614 . + # The underlying issue has been fixed in clang 18.1.3. run: sudo sysctl -w vm.mmap_rnd_bits=28 shell: bash From aa00a6b8924a7095e9bf650fcda4e69551af69b2 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 12 Apr 2024 17:24:29 +0200 Subject: [PATCH 340/557] Introduce CEIL_DIV macro and use it --- src/ecmult_impl.h | 6 +++--- src/util.h | 5 ++++- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 6d14c7ac4b..2cf38399da 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -42,7 +42,7 @@ #endif #define WNAF_BITS 128 -#define WNAF_SIZE_BITS(bits, w) (((bits) + (w) - 1) / (w)) +#define WNAF_SIZE_BITS(bits, w) CEIL_DIV(bits, w) #define WNAF_SIZE(w) WNAF_SIZE_BITS(WNAF_BITS, w) /* The number of objects allocated on the scratch space for ecmult_multi algorithms */ @@ -808,8 +808,8 @@ static int secp256k1_ecmult_multi_batch_size_helper(size_t *n_batches, size_t *n return 1; } /* Compute ceil(n/max_n_batch_points) and ceil(n/n_batches) */ - *n_batches = 1 + (n - 1) / max_n_batch_points; - *n_batch_points = 1 + (n - 1) / *n_batches; + *n_batches = CEIL_DIV(n, max_n_batch_points); + *n_batch_points = CEIL_DIV(n, *n_batches); return 1; } diff --git a/src/util.h b/src/util.h index 154d9ebcf1..b04a239dea 100644 --- a/src/util.h +++ b/src/util.h @@ -170,7 +170,10 @@ static SECP256K1_INLINE void *checked_malloc(const secp256k1_callback* cb, size_ #define ALIGNMENT 16 #endif -#define ROUND_TO_ALIGN(size) ((((size) + ALIGNMENT - 1) / ALIGNMENT) * ALIGNMENT) +/* ceil(x/y) for integers x > 0 and y > 0. Here, / denotes rational division. */ +#define CEIL_DIV(x, y) (1 + ((x) - 1) / (y)) + +#define ROUND_TO_ALIGN(size) (CEIL_DIV(size, ALIGNMENT) * ALIGNMENT) /* Macro for restrict, when available and not in a VERIFY build. */ #if defined(SECP256K1_BUILD) && defined(VERIFY) From ab45c3e0892ec6cffed714d89fb146bee694fcb2 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sun, 26 Dec 2021 18:21:57 -0500 Subject: [PATCH 341/557] Initial gej blinding -> final ge blinding Instead of having the starting point of the ecmult_gen computation be offset, do it with the final point. This enables reasoning over the set of points reachable in intermediary computations, which can be leveraged by potential future optimization. Because the final point is in affine coordinates, its projective blinding is no longer possible. It will be reintroduced again in a different way, in a later commit. Also introduce some more comments and more descriptive names. --- src/ecmult_gen.h | 6 ++--- src/ecmult_gen_impl.h | 51 +++++++++++++++++++++++-------------------- src/tests.c | 25 +++++++++++---------- 3 files changed, 43 insertions(+), 39 deletions(-) diff --git a/src/ecmult_gen.h b/src/ecmult_gen.h index a430e8d5d9..23d94aba84 100644 --- a/src/ecmult_gen.h +++ b/src/ecmult_gen.h @@ -32,9 +32,9 @@ typedef struct { /* Whether the context has been built. */ int built; - /* Blinding values used when computing (n-b)G + bG. */ - secp256k1_scalar blind; /* -b */ - secp256k1_gej initial; /* bG */ + /* Blinding values used when computing nG as (n-b)G + bG. */ + secp256k1_scalar scalar_offset; /* -b */ + secp256k1_ge ge_offset; /* bG */ } secp256k1_ecmult_gen_context; static void secp256k1_ecmult_gen_context_build(secp256k1_ecmult_gen_context* ctx); diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index af412173e9..d9ef58ce78 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -25,8 +25,8 @@ static int secp256k1_ecmult_gen_context_is_built(const secp256k1_ecmult_gen_cont static void secp256k1_ecmult_gen_context_clear(secp256k1_ecmult_gen_context *ctx) { ctx->built = 0; - secp256k1_scalar_clear(&ctx->blind); - secp256k1_gej_clear(&ctx->initial); + secp256k1_scalar_clear(&ctx->scalar_offset); + secp256k1_ge_clear(&ctx->ge_offset); } /* For accelerating the computation of a*G: @@ -51,12 +51,13 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 secp256k1_ge_storage adds; secp256k1_scalar gnb; int i, j, n_i; - + memset(&adds, 0, sizeof(adds)); - *r = ctx->initial; - /* Blind scalar/point multiplication by computing (n-b)G + bG instead of nG. */ - secp256k1_scalar_add(&gnb, gn, &ctx->blind); - add.infinity = 0; + secp256k1_gej_set_infinity(r); + + /* Blind scalar/point multiplication by computing (gn-b)*G + b*G instead of gn*G. */ + secp256k1_scalar_add(&gnb, gn, &ctx->scalar_offset); + for (i = 0; i < n; i++) { n_i = secp256k1_scalar_get_bits(&gnb, i * bits, bits); for (j = 0; j < g; j++) { @@ -76,6 +77,11 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 secp256k1_gej_add_ge(r, r, &add); } n_i = 0; + + /* Correct for the scalar_offset added at the start (ge_offset = b*G, while b was + * subtracted from the input scalar gn). */ + secp256k1_gej_add_ge(r, r, &ctx->ge_offset); + secp256k1_ge_clear(&add); secp256k1_scalar_clear(&gnb); } @@ -84,19 +90,17 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const unsigned char *seed32) { secp256k1_scalar b; secp256k1_gej gb; - secp256k1_fe s; unsigned char nonce32[32]; secp256k1_rfc6979_hmac_sha256 rng; unsigned char keydata[64]; if (seed32 == NULL) { - /* When seed is NULL, reset the initial point and blinding value. */ - secp256k1_gej_set_ge(&ctx->initial, &secp256k1_ge_const_g); - secp256k1_gej_neg(&ctx->initial, &ctx->initial); - secp256k1_scalar_set_int(&ctx->blind, 1); + /* When seed is NULL, reset the final point and blinding value. */ + secp256k1_ge_neg(&ctx->ge_offset, &secp256k1_ge_const_g); + ctx->scalar_offset = secp256k1_scalar_one; return; } /* The prior blinding value (if not reset) is chained forward by including it in the hash. */ - secp256k1_scalar_get_b32(keydata, &ctx->blind); + secp256k1_scalar_get_b32(keydata, &ctx->scalar_offset); /** Using a CSPRNG allows a failure free interface, avoids needing large amounts of random data, * and guards against weak or adversarial seeds. This is a simpler and safer interface than * asking the caller for blinding values directly and expecting them to retry on failure. @@ -105,24 +109,23 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const memcpy(keydata + 32, seed32, 32); secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, 64); memset(keydata, 0, sizeof(keydata)); - secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); - secp256k1_fe_set_b32_mod(&s, nonce32); - secp256k1_fe_cmov(&s, &secp256k1_fe_one, secp256k1_fe_normalizes_to_zero(&s)); - /* Randomize the projection to defend against multiplier sidechannels. - Do this before our own call to secp256k1_ecmult_gen below. */ - secp256k1_gej_rescale(&ctx->initial, &s); - secp256k1_fe_clear(&s); + + /* TODO: reintroduce projective blinding. */ + + /* For a random blinding value b, set ctx->scalar_offset=-b, ctx->ge_offset=bG. */ secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); secp256k1_scalar_set_b32(&b, nonce32, NULL); - /* A blinding value of 0 works, but would undermine the projection hardening. */ + /* The blinding value cannot be zero, as that would mean ge_offset = infinity, + * which secp256k1_gej_add_ge cannot handle. */ secp256k1_scalar_cmov(&b, &secp256k1_scalar_one, secp256k1_scalar_is_zero(&b)); secp256k1_rfc6979_hmac_sha256_finalize(&rng); memset(nonce32, 0, 32); - /* The random projection in ctx->initial ensures that gb will have a random projection. */ secp256k1_ecmult_gen(ctx, &gb, &b); secp256k1_scalar_negate(&b, &b); - ctx->blind = b; - ctx->initial = gb; + ctx->scalar_offset = b; + secp256k1_ge_set_gej(&ctx->ge_offset, &gb); + + /* Clean up. */ secp256k1_scalar_clear(&b); secp256k1_gej_clear(&gb); } diff --git a/src/tests.c b/src/tests.c index 85b4881295..e8b22a63db 100644 --- a/src/tests.c +++ b/src/tests.c @@ -248,8 +248,8 @@ static void run_selftest_tests(void) { static int ecmult_gen_context_eq(const secp256k1_ecmult_gen_context *a, const secp256k1_ecmult_gen_context *b) { return a->built == b->built - && secp256k1_scalar_eq(&a->blind, &b->blind) - && secp256k1_gej_eq_var(&a->initial, &b->initial); + && secp256k1_scalar_eq(&a->scalar_offset, &b->scalar_offset) + && secp256k1_ge_eq_var(&a->ge_offset, &b->ge_offset); } static int context_eq(const secp256k1_context *a, const secp256k1_context *b) { @@ -5570,18 +5570,18 @@ static void test_ecmult_gen_blind(void) { unsigned char seed32[32]; secp256k1_gej pgej; secp256k1_gej pgej2; - secp256k1_gej i; + secp256k1_ge p; secp256k1_ge pge; random_scalar_order_test(&key); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &pgej, &key); secp256k1_testrand256(seed32); - b = CTX->ecmult_gen_ctx.blind; - i = CTX->ecmult_gen_ctx.initial; + b = CTX->ecmult_gen_ctx.scalar_offset; + p = CTX->ecmult_gen_ctx.ge_offset; secp256k1_ecmult_gen_blind(&CTX->ecmult_gen_ctx, seed32); - CHECK(!secp256k1_scalar_eq(&b, &CTX->ecmult_gen_ctx.blind)); + CHECK(!secp256k1_scalar_eq(&b, &CTX->ecmult_gen_ctx.scalar_offset)); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &pgej2, &key); CHECK(!gej_xyz_equals_gej(&pgej, &pgej2)); - CHECK(!gej_xyz_equals_gej(&i, &CTX->ecmult_gen_ctx.initial)); + CHECK(!secp256k1_ge_eq_var(&p, &CTX->ecmult_gen_ctx.ge_offset)); secp256k1_ge_set_gej(&pge, &pgej); CHECK(secp256k1_gej_eq_ge_var(&pgej2, &pge)); } @@ -5589,13 +5589,14 @@ static void test_ecmult_gen_blind(void) { static void test_ecmult_gen_blind_reset(void) { /* Test ecmult_gen() blinding reset and confirm that the blinding is consistent. */ secp256k1_scalar b; - secp256k1_gej initial; + secp256k1_ge p1, p2; secp256k1_ecmult_gen_blind(&CTX->ecmult_gen_ctx, 0); - b = CTX->ecmult_gen_ctx.blind; - initial = CTX->ecmult_gen_ctx.initial; + b = CTX->ecmult_gen_ctx.scalar_offset; + p1 = CTX->ecmult_gen_ctx.ge_offset; secp256k1_ecmult_gen_blind(&CTX->ecmult_gen_ctx, 0); - CHECK(secp256k1_scalar_eq(&b, &CTX->ecmult_gen_ctx.blind)); - CHECK(gej_xyz_equals_gej(&initial, &CTX->ecmult_gen_ctx.initial)); + CHECK(secp256k1_scalar_eq(&b, &CTX->ecmult_gen_ctx.scalar_offset)); + p2 = CTX->ecmult_gen_ctx.ge_offset; + CHECK(secp256k1_ge_eq_var(&p1, &p2)); } static void run_ecmult_gen_blind(void) { From 486518b35026715bd286bf1595ab0f51968c4b6f Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 30 Dec 2021 12:22:58 -0500 Subject: [PATCH 342/557] Make exhaustive tests's scalar_inverse(&x,&x) work The old code overwrote the input at the start of the function, making a call like secp256k1_scalar_inverse(&x,&x) always fail. --- src/scalar_low_impl.h | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 0895db6a17..7f53e626a5 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -169,17 +169,22 @@ static SECP256K1_INLINE void secp256k1_scalar_cmov(secp256k1_scalar *r, const se static void secp256k1_scalar_inverse(secp256k1_scalar *r, const secp256k1_scalar *x) { int i; - *r = 0; + uint32_t res = 0; SECP256K1_SCALAR_VERIFY(x); - for (i = 0; i < EXHAUSTIVE_TEST_ORDER; i++) - if ((i * *x) % EXHAUSTIVE_TEST_ORDER == 1) - *r = i; + for (i = 0; i < EXHAUSTIVE_TEST_ORDER; i++) { + if ((i * *x) % EXHAUSTIVE_TEST_ORDER == 1) { + res = i; + break; + } + } - SECP256K1_SCALAR_VERIFY(r); /* If this VERIFY_CHECK triggers we were given a noninvertible scalar (and thus * have a composite group order; fix it in exhaustive_tests.c). */ - VERIFY_CHECK(*r != 0); + VERIFY_CHECK(res != 0); + *r = res; + + SECP256K1_SCALAR_VERIFY(r); } static void secp256k1_scalar_inverse_var(secp256k1_scalar *r, const secp256k1_scalar *x) { From fde1dfcd8d0a2a6444491b235d9ae2926f4ad7f4 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Sun, 26 Dec 2021 18:09:27 -0500 Subject: [PATCH 343/557] Signed-digit multi-comb ecmult_gen algorithm This introduces the signed-digit multi-comb multiplication algorithm for constant-time G multiplications (ecmult_gen). It is based on section 3.3 of "Fast and compact elliptic-curve cryptography" by Mike Hamburg (see https://eprint.iacr.org/2012/309). Original implementation by Peter Dettman, with changes by Pieter Wuille to use scalars for recoding, and additional comments. --- src/ecmult_gen.h | 104 +- src/ecmult_gen_compute_table.h | 4 +- src/ecmult_gen_compute_table_impl.h | 132 +- src/ecmult_gen_impl.h | 216 +- src/precompute_ecmult_gen.c | 69 +- src/precomputed_ecmult_gen.c | 10091 +------------------------- src/precomputed_ecmult_gen.h | 4 +- src/tests_exhaustive.c | 2 +- 8 files changed, 754 insertions(+), 9868 deletions(-) diff --git a/src/ecmult_gen.h b/src/ecmult_gen.h index 23d94aba84..edac5a8b45 100644 --- a/src/ecmult_gen.h +++ b/src/ecmult_gen.h @@ -1,5 +1,5 @@ /*********************************************************************** - * Copyright (c) 2013, 2014 Pieter Wuille * + * Copyright (c) Pieter Wuille, Peter Dettman * * Distributed under the MIT software license, see the accompanying * * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ @@ -10,31 +10,105 @@ #include "scalar.h" #include "group.h" -#ifndef ECMULT_GEN_PREC_BITS -# define ECMULT_GEN_PREC_BITS 4 -# ifdef DEBUG_CONFIG -# pragma message DEBUG_CONFIG_MSG("ECMULT_GEN_PREC_BITS undefined, assuming default value") + +/* Configuration parameters for the signed-digit multi-comb algorithm: + * + * - COMB_BLOCKS is the number of blocks the input is split into. Each + * has a corresponding table. + * - COMB_TEETH is the number of bits simultaneously covered by one table. + * + * The comb's spacing (COMB_SPACING), or the distance between the teeth, + * is defined as ceil(256 / (COMB_BLOCKS * COMB_TEETH)). Each block covers + * COMB_SPACING * COMB_TEETH consecutive bits in the input. + * + * The size of the precomputed table is COMB_BLOCKS * (1 << (COMB_TEETH - 1)) + * secp256k1_ge_storages. + * + * The number of point additions equals COMB_BLOCKS * COMB_SPACING. Each point + * addition involves a cmov from (1 << (COMB_TEETH - 1)) table entries and a + * conditional negation. + * + * The number of point doublings is COMB_SPACING - 1. */ + +#if defined(EXHAUSTIVE_TEST_ORDER) +/* We need to control these values for exhaustive tests because + * the table cannot have infinities in them (secp256k1_ge_storage + * doesn't support infinities) */ +# undef COMB_BLOCKS +# undef COMB_TEETH +# if EXHAUSTIVE_TEST_ORDER > 32 +# define COMB_BLOCKS 52 +# define COMB_TEETH 5 +# elif EXHAUSTIVE_TEST_ORDER > 16 +# define COMB_BLOCKS 64 +# define COMB_TEETH 4 +# elif EXHAUSTIVE_TEST_ORDER > 8 +# define COMB_BLOCKS 86 +# define COMB_TEETH 3 +# elif EXHAUSTIVE_TEST_ORDER > 4 +# define COMB_BLOCKS 128 +# define COMB_TEETH 2 +# else +# define COMB_BLOCKS 256 +# define COMB_TEETH 1 # endif -#endif +#else /* !defined(EXHAUSTIVE_TEST_ORDER) */ +/* Use (11, 6) as default configuration, which results in a 22 kB table. */ +# ifndef COMB_BLOCKS +# define COMB_BLOCKS 11 +# ifdef DEBUG_CONFIG +# pragma message DEBUG_CONFIG_MSG("COMB_BLOCKS undefined, assuming default value") +# endif +# endif +# ifndef COMB_TEETH +# define COMB_TEETH 6 +# ifdef DEBUG_CONFIG +# pragma message DEBUG_CONFIG_MSG("COMB_TEETH undefined, assuming default value") +# endif +# endif +#endif /* defined(EXHAUSTIVE_TEST_ORDER) */ -#ifdef DEBUG_CONFIG -# pragma message DEBUG_CONFIG_DEF(ECMULT_GEN_PREC_BITS) +/* Range checks on the parameters. */ +#if !(1 <= COMB_BLOCKS && COMB_BLOCKS <= 256) +# error "COMB_BLOCKS must be in the range [1, 256]" #endif +#if !(1 <= COMB_TEETH && COMB_TEETH <= 8) +# error "COMB_TEETH must be in the range [1, 8]" +#endif + +/* The remaining COMB_* parameters are derived values, don't modify these. */ +/* - The distance between the teeth of each comb. */ +#define COMB_SPACING CEIL_DIV(256, COMB_BLOCKS * COMB_TEETH) +/* - The number of bits covered by all the blocks; must be at least 256. */ +#define COMB_BITS (COMB_BLOCKS * COMB_TEETH * COMB_SPACING) +/* - The number of entries per table. */ +#define COMB_POINTS (1 << (COMB_TEETH - 1)) -#if ECMULT_GEN_PREC_BITS != 2 && ECMULT_GEN_PREC_BITS != 4 && ECMULT_GEN_PREC_BITS != 8 -# error "Set ECMULT_GEN_PREC_BITS to 2, 4 or 8." +/* Additional sanity checks. */ +#if (COMB_BLOCKS - 1) * COMB_TEETH * COMB_SPACING >= 256 +# error "COMB_BLOCKS can be reduced" +#endif +#if COMB_BLOCKS * (COMB_TEETH - 1) * COMB_SPACING >= 256 +# error "COMB_TEETH can be reduced" #endif -#define ECMULT_GEN_PREC_G(bits) (1 << bits) -#define ECMULT_GEN_PREC_N(bits) (256 / bits) +#ifdef DEBUG_CONFIG +# pragma message DEBUG_CONFIG_DEF(COMB_BLOCKS) +# pragma message DEBUG_CONFIG_DEF(COMB_TEETH) +#endif typedef struct { /* Whether the context has been built. */ int built; - /* Blinding values used when computing nG as (n-b)G + bG. */ - secp256k1_scalar scalar_offset; /* -b */ - secp256k1_ge ge_offset; /* bG */ + /* Values chosen such that + * + * n*G == comb(n + (2^COMB_BITS-1)/2 + scalar_offset, G/2) + ge_offset. + * + * This expression lets us use scalar blinding and optimize the comb precomputation. See + * ecmult_gen_impl.h for more details. */ + secp256k1_scalar scalar_offset; + secp256k1_ge ge_offset; } secp256k1_ecmult_gen_context; static void secp256k1_ecmult_gen_context_build(secp256k1_ecmult_gen_context* ctx); diff --git a/src/ecmult_gen_compute_table.h b/src/ecmult_gen_compute_table.h index e577158d92..cd4f9233bd 100644 --- a/src/ecmult_gen_compute_table.h +++ b/src/ecmult_gen_compute_table.h @@ -1,5 +1,5 @@ /*********************************************************************** - * Copyright (c) 2013, 2014, 2015 Pieter Wuille, Gregory Maxwell * + * Copyright (c) Pieter Wuille, Gregory Maxwell * * Distributed under the MIT software license, see the accompanying * * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ @@ -9,6 +9,6 @@ #include "ecmult_gen.h" -static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int bits); +static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int blocks, int teeth); #endif /* SECP256K1_ECMULT_GEN_COMPUTE_TABLE_H */ diff --git a/src/ecmult_gen_compute_table_impl.h b/src/ecmult_gen_compute_table_impl.h index dfbacdbfde..5ad0b0b311 100644 --- a/src/ecmult_gen_compute_table_impl.h +++ b/src/ecmult_gen_compute_table_impl.h @@ -1,5 +1,5 @@ /*********************************************************************** - * Copyright (c) 2013, 2014, 2015 Pieter Wuille, Gregory Maxwell * + * Copyright (c) Pieter Wuille, Gregory Maxwell, Peter Dettman * * Distributed under the MIT software license, see the accompanying * * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ @@ -10,74 +10,96 @@ #include "ecmult_gen_compute_table.h" #include "group_impl.h" #include "field_impl.h" +#include "scalar_impl.h" #include "ecmult_gen.h" #include "util.h" -static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int bits) { - int g = ECMULT_GEN_PREC_G(bits); - int n = ECMULT_GEN_PREC_N(bits); +static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int blocks, int teeth) { + size_t points = ((size_t)1) << (teeth - 1); + size_t points_total = points * blocks; + int spacing = (256 + blocks * teeth - 1) / (blocks * teeth); + secp256k1_ge* prec = checked_malloc(&default_error_callback, points_total * sizeof(*prec)); + secp256k1_gej* ds = checked_malloc(&default_error_callback, teeth * sizeof(*ds)); + secp256k1_gej* vs = checked_malloc(&default_error_callback, points_total * sizeof(*vs)); + secp256k1_gej u; + size_t vs_pos = 0; + secp256k1_scalar half; + int block, i; - secp256k1_ge* prec = checked_malloc(&default_error_callback, n * g * sizeof(*prec)); - secp256k1_gej gj; - secp256k1_gej nums_gej; - int i, j; + VERIFY_CHECK(points_total > 0); - VERIFY_CHECK(g > 0); - VERIFY_CHECK(n > 0); - - /* get the generator */ - secp256k1_gej_set_ge(&gj, gen); - - /* Construct a group element with no known corresponding scalar (nothing up my sleeve). */ + /* u is the running power of two times gen we're working with, initially gen/2. */ + secp256k1_scalar_half(&half, &secp256k1_scalar_one); + secp256k1_gej_set_infinity(&u); + for (i = 255; i >= 0; --i) { + /* Use a very simple multiplication ladder to avoid dependency on ecmult. */ + secp256k1_gej_double_var(&u, &u, NULL); + if (secp256k1_scalar_get_bits(&half, i, 1)) { + secp256k1_gej_add_ge_var(&u, &u, gen, NULL); + } + } +#ifdef VERIFY { - static const unsigned char nums_b32[33] = "The scalar for this x is unknown"; - secp256k1_fe nums_x; - secp256k1_ge nums_ge; - int r; - r = secp256k1_fe_set_b32_limit(&nums_x, nums_b32); - (void)r; - VERIFY_CHECK(r); - r = secp256k1_ge_set_xo_var(&nums_ge, &nums_x, 0); - (void)r; - VERIFY_CHECK(r); - secp256k1_gej_set_ge(&nums_gej, &nums_ge); - /* Add G to make the bits in x uniformly distributed. */ - secp256k1_gej_add_ge_var(&nums_gej, &nums_gej, gen, NULL); + /* Verify that u*2 = gen. */ + secp256k1_gej double_u; + secp256k1_gej_double_var(&double_u, &u, NULL); + VERIFY_CHECK(secp256k1_gej_eq_ge_var(&double_u, gen)); } +#endif - /* compute prec. */ - { - secp256k1_gej gbase; - secp256k1_gej numsbase; - secp256k1_gej* precj = checked_malloc(&default_error_callback, n * g * sizeof(*precj)); /* Jacobian versions of prec. */ - gbase = gj; /* PREC_G^j * G */ - numsbase = nums_gej; /* 2^j * nums. */ - for (j = 0; j < n; j++) { - /* Set precj[j*PREC_G .. j*PREC_G+(PREC_G-1)] to (numsbase, numsbase + gbase, ..., numsbase + (PREC_G-1)*gbase). */ - precj[j*g] = numsbase; - for (i = 1; i < g; i++) { - secp256k1_gej_add_var(&precj[j*g + i], &precj[j*g + i - 1], &gbase, NULL); + for (block = 0; block < blocks; ++block) { + int tooth; + /* Here u = 2^(block*teeth*spacing) * gen/2. */ + secp256k1_gej sum; + secp256k1_gej_set_infinity(&sum); + for (tooth = 0; tooth < teeth; ++tooth) { + /* Here u = 2^((block*teeth + tooth)*spacing) * gen/2. */ + int bit_off; + /* Make sum = sum(2^((block*teeth + t)*spacing), t=0..tooth) * gen/2. */ + secp256k1_gej_add_var(&sum, &sum, &u, NULL); + /* Make u = 2^((block*teeth + tooth)*spacing + 1) * gen/2. */ + secp256k1_gej_double_var(&u, &u, NULL); + /* Make ds[tooth] = u = 2^((block*teeth + tooth)*spacing + 1) * gen/2. */ + ds[tooth] = u; + /* Make u = 2^((block*teeth + tooth + 1)*spacing) * gen/2. */ + for (bit_off = 1; bit_off < spacing; ++bit_off) { + secp256k1_gej_double_var(&u, &u, NULL); } - /* Multiply gbase by PREC_G. */ - for (i = 0; i < bits; i++) { - secp256k1_gej_double_var(&gbase, &gbase, NULL); - } - /* Multiply numbase by 2. */ - secp256k1_gej_double_var(&numsbase, &numsbase, NULL); - if (j == n - 2) { - /* In the last iteration, numsbase is (1 - 2^j) * nums instead. */ - secp256k1_gej_neg(&numsbase, &numsbase); - secp256k1_gej_add_var(&numsbase, &numsbase, &nums_gej, NULL); + } + /* Now u = 2^((block*teeth + teeth)*spacing) * gen/2 + * = 2^((block+1)*teeth*spacing) * gen/2 */ + + /* Next, compute the table entries for block number block in Jacobian coordinates. + * The entries will occupy vs[block*points + i] for i=0..points-1. + * We start by computing the first (i=0) value corresponding to all summed + * powers of two times G being negative. */ + secp256k1_gej_neg(&vs[vs_pos++], &sum); + /* And then teeth-1 times "double" the range of i values for which the table + * is computed: in each iteration, double the table by taking an existing + * table entry and adding ds[tooth]. */ + for (tooth = 0; tooth < teeth - 1; ++tooth) { + size_t stride = ((size_t)1) << tooth; + size_t index; + for (index = 0; index < stride; ++index, ++vs_pos) { + secp256k1_gej_add_var(&vs[vs_pos], &vs[vs_pos - stride], &ds[tooth], NULL); } } - secp256k1_ge_set_all_gej_var(prec, precj, n * g); - free(precj); } - for (j = 0; j < n; j++) { - for (i = 0; i < g; i++) { - secp256k1_ge_to_storage(&table[j*g + i], &prec[j*g + i]); + VERIFY_CHECK(vs_pos == points_total); + + /* Convert all points simultaneously from secp256k1_gej to secp256k1_ge. */ + secp256k1_ge_set_all_gej_var(prec, vs, points_total); + /* Convert all points from secp256k1_ge to secp256k1_ge_storage output. */ + for (block = 0; block < blocks; ++block) { + size_t index; + for (index = 0; index < points; ++index) { + secp256k1_ge_to_storage(&table[block * points + index], &prec[block * points + index]); } } + + /* Free memory. */ + free(vs); + free(ds); free(prec); } diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index d9ef58ce78..b8b4003857 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -1,5 +1,5 @@ /*********************************************************************** - * Copyright (c) 2013, 2014, 2015 Pieter Wuille, Gregory Maxwell * + * Copyright (c) Pieter Wuille, Gregory Maxwell, Peter Dettman * * Distributed under the MIT software license, see the accompanying * * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ @@ -29,38 +29,180 @@ static void secp256k1_ecmult_gen_context_clear(secp256k1_ecmult_gen_context *ctx secp256k1_ge_clear(&ctx->ge_offset); } -/* For accelerating the computation of a*G: - * To harden against timing attacks, use the following mechanism: - * * Break up the multiplicand into groups of PREC_BITS bits, called n_0, n_1, n_2, ..., n_(PREC_N-1). - * * Compute sum(n_i * (PREC_G)^i * G + U_i, i=0 ... PREC_N-1), where: - * * U_i = U * 2^i, for i=0 ... PREC_N-2 - * * U_i = U * (1-2^(PREC_N-1)), for i=PREC_N-1 - * where U is a point with no known corresponding scalar. Note that sum(U_i, i=0 ... PREC_N-1) = 0. - * For each i, and each of the PREC_G possible values of n_i, (n_i * (PREC_G)^i * G + U_i) is - * precomputed (call it prec(i, n_i)). The formula now becomes sum(prec(i, n_i), i=0 ... PREC_N-1). - * None of the resulting prec group elements have a known scalar, and neither do any of - * the intermediate sums while computing a*G. - * The prec values are stored in secp256k1_ecmult_gen_prec_table[i][n_i] = n_i * (PREC_G)^i * G + U_i. - */ -static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp256k1_gej *r, const secp256k1_scalar *gn) { - int bits = ECMULT_GEN_PREC_BITS; - int g = ECMULT_GEN_PREC_G(bits); - int n = ECMULT_GEN_PREC_N(bits); +/* Compute the scalar (2^COMB_BITS - 1) / 2, the difference between the gn argument to + * secp256k1_ecmult_gen, and the scalar whose encoding the table lookup bits are drawn + * from (before applying blinding). */ +static void secp256k1_ecmult_gen_scalar_diff(secp256k1_scalar* diff) { + int i; + + /* Compute scalar -1/2. */ + secp256k1_scalar neghalf; + secp256k1_scalar_half(&neghalf, &secp256k1_scalar_one); + secp256k1_scalar_negate(&neghalf, &neghalf); + + /* Compute offset = 2^(COMB_BITS - 1). */ + *diff = secp256k1_scalar_one; + for (i = 0; i < COMB_BITS - 1; ++i) { + secp256k1_scalar_add(diff, diff, diff); + } + /* The result is the sum 2^(COMB_BITS - 1) + (-1/2). */ + secp256k1_scalar_add(diff, diff, &neghalf); +} + +static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp256k1_gej *r, const secp256k1_scalar *gn) { + uint32_t comb_off; secp256k1_ge add; + secp256k1_fe neg; secp256k1_ge_storage adds; - secp256k1_scalar gnb; - int i, j, n_i; + secp256k1_scalar d; memset(&adds, 0, sizeof(adds)); + + /* We want to compute R = gn*G. + * + * To blind the scalar used in the computation, we rewrite this to be + * R = (gn - b)*G + b*G, with a blinding value b determined by the context. + * + * The multiplication (gn-b)*G will be performed using a signed-digit multi-comb (see Section + * 3.3 of "Fast and compact elliptic-curve cryptography" by Mike Hamburg, + * https://eprint.iacr.org/2012/309). + * + * Let comb(s, P) = sum((2*s[i]-1)*2^i*P for i=0..COMB_BITS-1), where s[i] is the i'th bit of + * the binary representation of scalar s. So the s[i] values determine whether -2^i*P (s[i]=0) + * or +2^i*P (s[i]=1) are added together. COMB_BITS is at least 256, so all bits of s are + * covered. By manipulating: + * + * comb(s, P) = sum((2*s[i]-1)*2^i*P for i=0..COMB_BITS-1) + * <=> comb(s, P) = sum((2*s[i]-1)*2^i for i=0..COMB_BITS-1) * P + * <=> comb(s, P) = (2*sum(s[i]*2^i for i=0..COMB_BITS-1) - sum(2^i for i=0..COMB_BITS-1)) * P + * <=> comb(s, P) = (2*s - (2^COMB_BITS - 1)) * P + * + * If we wanted to compute (gn-b)*G as comb(s, G), it would need to hold that + * + * (gn - b) * G = (2*s - (2^COMB_BITS - 1)) * G + * <=> s = (gn - b + (2^COMB_BITS - 1))/2 (mod order) + * + * We use an alternative here that avoids the modular division by two: instead we compute + * (gn-b)*G as comb(d, G/2). For that to hold it must be the case that + * + * (gn - b) * G = (2*d - (2^COMB_BITS - 1)) * (G/2) + * <=> d = gn - b + (2^COMB_BITS - 1)/2 (mod order) + * + * Adding precomputation, our final equations become: + * + * ctx->scalar_offset = -b + * ctx->ge_offset = b*G + * d = gn + ctx->scalar_offset + (2^COMB_BITS - 1)/2 (mod order) + * R = comb(d, G/2) + ctx->ge_offset + * + * comb(d, G/2) function is then computed by summing + or - 2^(i-1)*G, for i=0..COMB_BITS-1, + * depending on the value of the bits d[i] of the binary representation of scalar d. + */ + + /* Compute the scalar d = (gn + ctx->scalar_offset + (2^COMB_BITS - 1)/2). */ + secp256k1_ecmult_gen_scalar_diff(&d); + secp256k1_scalar_add(&d, &d, &ctx->scalar_offset); + secp256k1_scalar_add(&d, &d, gn); + + /* In secp256k1_ecmult_gen_prec_table we have precomputed sums of the + * (2*d[i]-1) * 2^(i-1) * G points, for various combinations of i positions. + * We rewrite our equation in terms of these table entries. + * + * Let mask(b) = sum(2^((b*COMB_TEETH + t)*COMB_SPACING) for t=0..COMB_TEETH-1), + * with b ranging from 0 to COMB_BLOCKS-1. So for example with COMB_BLOCKS=11, + * COMB_TEETH=6, COMB_SPACING=4, we would have: + * mask(0) = 2^0 + 2^4 + 2^8 + 2^12 + 2^16 + 2^20, + * mask(1) = 2^24 + 2^28 + 2^32 + 2^36 + 2^40 + 2^44, + * mask(2) = 2^48 + 2^52 + 2^56 + 2^60 + 2^64 + 2^68, + * ... + * mask(10) = 2^240 + 2^244 + 2^248 + 2^252 + 2^256 + 2^260 + * + * We will split up the bits d[i] using these masks. Specifically, each mask is + * used COMB_SPACING times, with different shifts: + * + * d = (d & mask(0)<<0) + (d & mask(1)<<0) + ... + (d & mask(COMB_BLOCKS-1)<<0) + + * (d & mask(0)<<1) + (d & mask(1)<<1) + ... + (d & mask(COMB_BLOCKS-1)<<1) + + * ... + * (d & mask(0)<<(COMB_SPACING-1)) + ... + * + * Now define table(b, m) = (m - mask(b)/2) * G, and we will precompute these values for + * b=0..COMB_BLOCKS-1, and for all values m which (d & mask(b)) can take (so m can take on + * 2^COMB_TEETH distinct values). + * + * If m=(d & mask(b)), then table(b, m) is the sum of 2^i * (2*d[i]-1) * G/2, with i + * iterating over the set bits in mask(b). In our example, table(2, 2^48 + 2^56 + 2^68) + * would equal (2^48 - 2^52 + 2^56 - 2^60 - 2^64 + 2^68) * G/2. + * + * With that, we can rewrite comb(d, G/2) as: + * + * 2^0 * (table(0, d>>0 & mask(0)) + ... + table(COMB_BLOCKS-1, d>>0 & mask(COMP_BLOCKS-1))) + * + 2^1 * (table(0, d>>1 & mask(0)) + ... + table(COMB_BLOCKS-1, d>>1 & mask(COMP_BLOCKS-1))) + * + 2^2 * (table(0, d>>2 & mask(0)) + ... + table(COMB_BLOCKS-1, d>>2 & mask(COMP_BLOCKS-1))) + * + ... + * + 2^(COMB_SPACING-1) * (table(0, d>>(COMB_SPACING-1) & mask(0)) + ...) + * + * Or more generically as + * + * sum(2^i * sum(table(b, d>>i & mask(b)), b=0..COMB_BLOCKS-1), i=0..COMB_SPACING-1) + * + * This is implemented using an outer loop that runs in reverse order over the lines of this + * equation, which in each iteration runs an inner loop that adds the terms of that line and + * then doubles the result before proceeding to the next line. + * + * In pseudocode: + * c = infinity + * for comb_off in range(COMB_SPACING - 1, -1, -1): + * for block in range(COMB_BLOCKS): + * c += table(block, (d >> comb_off) & mask(block)) + * if comb_off > 0: + * c = 2*c + * return c + * + * This computes c = comb(d, G/2), and thus finally R = c + ctx->ge_offset. Note that it would + * be possible to apply an initial offset instead of a final offset (moving ge_offset to take + * the place of infinity above), but the chosen approach allows using (in a future improvement) + * an incomplete addition formula for most of the multiplication. + * + * The last question is how to implement the table(b, m) function. For any value of b, + * m=(d & mask(b)) can only take on at most 2^COMB_TEETH possible values (the last one may have + * fewer as there mask(b) may exceed the curve order). So we could create COMB_BLOCK tables + * which contain a value for each such m value. + * + * Now note that if m=(d & mask(b)), then flipping the relevant bits of m results in negating + * the result of table(b, m). This is because table(b,m XOR mask(b)) = table(b, mask(b) - m) = + * (mask(b) - m - mask(b)/2)*G = (-m + mask(b)/2)*G = -(m - mask(b)/2)*G = -table(b, m). + * Because of this it suffices to only store the first half of the m values for every b. If an + * entry from the second half is needed, we look up its bit-flipped version instead, and negate + * it. + * + * secp256k1_ecmult_gen_prec_table[b][index] stores the table(b, m) entries. Index + * is the relevant mask(b) bits of m packed together without gaps. */ + secp256k1_gej_set_infinity(r); + /* Outer loop: iterate over comb_off from COMB_SPACING - 1 down to 0. */ + comb_off = COMB_SPACING - 1; + while (1) { + uint32_t block; + uint32_t bit_pos = comb_off; + /* Inner loop: for each block, add table entries to the result. */ + for (block = 0; block < COMB_BLOCKS; ++block) { + /* Gather the mask(block)-selected bits of d into bits. They're packed: + * bits[tooth] = d[(block*COMB_TEETH + tooth)*COMB_SPACING + comb_off]. */ + uint32_t bits = 0, sign, abs, index, tooth; + for (tooth = 0; tooth < COMB_TEETH && bit_pos < 256; ++tooth) { + uint32_t bit = secp256k1_scalar_get_bits(&d, bit_pos, 1); + bits |= bit << tooth; + bit_pos += COMB_SPACING; + } - /* Blind scalar/point multiplication by computing (gn-b)*G + b*G instead of gn*G. */ - secp256k1_scalar_add(&gnb, gn, &ctx->scalar_offset); + /* If the top bit of bits is 1, flip them all (corresponding to looking up + * the negated table value), and remember to negate the result in sign. */ + sign = (bits >> (COMB_TEETH - 1)) & 1; + abs = (bits ^ -sign) & (COMB_POINTS - 1); + VERIFY_CHECK(sign == 0 || sign == 1); + VERIFY_CHECK(abs < COMB_POINTS); - for (i = 0; i < n; i++) { - n_i = secp256k1_scalar_get_bits(&gnb, i * bits, bits); - for (j = 0; j < g; j++) { /** This uses a conditional move to avoid any secret data in array indexes. * _Any_ use of secret indexes has been demonstrated to result in timing * sidechannels, even when the cache-line access patterns are uniform. @@ -71,19 +213,33 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 * by Dag Arne Osvik, Adi Shamir, and Eran Tromer * (https://www.tau.ac.il/~tromer/papers/cache.pdf) */ - secp256k1_ge_storage_cmov(&adds, &secp256k1_ecmult_gen_prec_table[i][j], j == n_i); + for (index = 0; index < COMB_POINTS; ++index) { + secp256k1_ge_storage_cmov(&adds, &secp256k1_ecmult_gen_prec_table[block][index], index == abs); + } + + /* Set add=adds or add=-adds, in constant time, based on sign. */ + secp256k1_ge_from_storage(&add, &adds); + secp256k1_fe_negate(&neg, &add.y, 1); + secp256k1_fe_cmov(&add.y, &neg, sign); + + /* Add the looked up and conditionally negated value to r. */ + secp256k1_gej_add_ge(r, r, &add); } - secp256k1_ge_from_storage(&add, &adds); - secp256k1_gej_add_ge(r, r, &add); + + /* Double the result, except in the last iteration. */ + if (comb_off-- == 0) break; + secp256k1_gej_double(r, r); } - n_i = 0; /* Correct for the scalar_offset added at the start (ge_offset = b*G, while b was * subtracted from the input scalar gn). */ secp256k1_gej_add_ge(r, r, &ctx->ge_offset); + /* Cleanup. */ + secp256k1_fe_clear(&neg); secp256k1_ge_clear(&add); - secp256k1_scalar_clear(&gnb); + memset(&adds, 0, sizeof(adds)); + secp256k1_scalar_clear(&d); } /* Setup blinding values for secp256k1_ecmult_gen. */ diff --git a/src/precompute_ecmult_gen.c b/src/precompute_ecmult_gen.c index ce648cb9b0..11ab8ba089 100644 --- a/src/precompute_ecmult_gen.c +++ b/src/precompute_ecmult_gen.c @@ -17,10 +17,42 @@ #include "ecmult_gen.h" #include "ecmult_gen_compute_table_impl.h" +static const int CONFIGS[1][2] = { + {11, 6} +}; + +static void print_table(FILE* fp, int blocks, int teeth) { + size_t points = ((size_t)1) << (teeth - 1); + int outer; + size_t inner; + + secp256k1_ge_storage* table = checked_malloc(&default_error_callback, blocks * points * sizeof(secp256k1_ge_storage)); + secp256k1_ecmult_gen_compute_table(table, &secp256k1_ge_const_g, blocks, teeth); + + fprintf(fp, "#elif (COMB_BLOCKS == %d) && (COMB_TEETH == %d)\n", blocks, teeth); + for (outer = 0; outer != blocks; outer++) { + fprintf(fp,"{"); + for (inner = 0; inner != points; inner++) { + fprintf(fp, "S(%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32 + ",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32")", + SECP256K1_GE_STORAGE_CONST_GET(table[outer * points + inner])); + if (inner != points - 1) { + fprintf(fp,",\n"); + } + } + if (outer != blocks - 1) { + fprintf(fp,"},\n"); + } else { + fprintf(fp,"}\n"); + } + } + free(table); +} + int main(int argc, char **argv) { const char outfile[] = "src/precomputed_ecmult_gen.c"; FILE* fp; - int bits; + size_t config; (void)argc; (void)argv; @@ -40,36 +72,15 @@ int main(int argc, char **argv) { fprintf(fp, "# error Cannot compile precomputed_ecmult_gen.c in exhaustive test mode\n"); fprintf(fp, "#endif /* EXHAUSTIVE_TEST_ORDER */\n"); fprintf(fp, "#define S(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) SECP256K1_GE_STORAGE_CONST(0x##a##u,0x##b##u,0x##c##u,0x##d##u,0x##e##u,0x##f##u,0x##g##u,0x##h##u,0x##i##u,0x##j##u,0x##k##u,0x##l##u,0x##m##u,0x##n##u,0x##o##u,0x##p##u)\n"); - fprintf(fp, "const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[ECMULT_GEN_PREC_N(ECMULT_GEN_PREC_BITS)][ECMULT_GEN_PREC_G(ECMULT_GEN_PREC_BITS)] = {\n"); - - for (bits = 2; bits <= 8; bits *= 2) { - int g = ECMULT_GEN_PREC_G(bits); - int n = ECMULT_GEN_PREC_N(bits); - int inner, outer; - - secp256k1_ge_storage* table = checked_malloc(&default_error_callback, n * g * sizeof(secp256k1_ge_storage)); - secp256k1_ecmult_gen_compute_table(table, &secp256k1_ge_const_g, bits); - fprintf(fp, "#if ECMULT_GEN_PREC_BITS == %d\n", bits); - for(outer = 0; outer != n; outer++) { - fprintf(fp,"{"); - for(inner = 0; inner != g; inner++) { - fprintf(fp, "S(%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32 - ",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32")", - SECP256K1_GE_STORAGE_CONST_GET(table[outer * g + inner])); - if (inner != g - 1) { - fprintf(fp,",\n"); - } - } - if (outer != n - 1) { - fprintf(fp,"},\n"); - } else { - fprintf(fp,"}\n"); - } - } - fprintf(fp, "#endif\n"); - free(table); + fprintf(fp, "const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS] = {\n"); + fprintf(fp, "#if 0\n"); + for (config = 0; config < sizeof(CONFIGS) / sizeof(*CONFIGS); ++config) { + print_table(fp, CONFIGS[config][0], CONFIGS[config][1]); } + fprintf(fp, "#else\n"); + fprintf(fp, "# error Configuration mismatch, invalid COMB_* parameters. Try deleting precomputed_ecmult_gen.c before the build.\n"); + fprintf(fp, "#endif\n"); fprintf(fp, "};\n"); fprintf(fp, "#undef S\n"); diff --git a/src/precomputed_ecmult_gen.c b/src/precomputed_ecmult_gen.c index 75ec59c27a..25519d3198 100644 --- a/src/precomputed_ecmult_gen.c +++ b/src/precomputed_ecmult_gen.c @@ -7,9740 +7,363 @@ # error Cannot compile precomputed_ecmult_gen.c in exhaustive test mode #endif /* EXHAUSTIVE_TEST_ORDER */ #define S(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) SECP256K1_GE_STORAGE_CONST(0x##a##u,0x##b##u,0x##c##u,0x##d##u,0x##e##u,0x##f##u,0x##g##u,0x##h##u,0x##i##u,0x##j##u,0x##k##u,0x##l##u,0x##m##u,0x##n##u,0x##o##u,0x##p##u) -const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[ECMULT_GEN_PREC_N(ECMULT_GEN_PREC_BITS)][ECMULT_GEN_PREC_G(ECMULT_GEN_PREC_BITS)] = { -#if ECMULT_GEN_PREC_BITS == 2 -{S(3a9ed373,6eed3eec,9aeb5ac0,21b54652,56817b1f,8de6cd0,fbcee548,ba044bb5,7bcc5928,bdc9c023,dfc663b8,9e4f6969,ab751798,8e600ec1,d242010c,45c7974a), -S(e44d7675,c3cb2857,4e133c01,a74f4afc,5ce684f8,4a789711,603f7c4f,50abef58,25bcb62f,fe2e2ce2,196ad86c,a006e20,8c64d21b,b25320a3,b5574b9c,1e1bfb4b), -S(6ada98a4,8118166f,e7082591,d6cda51e,914b60b1,49696270,3350249b,ee8d4770,c234dfad,f3847877,a0a7bcda,112dba85,1cdddf00,84d0c07,df1d1a,a3ec3aeb), -S(a94ae8,63264dfb,b910ea95,4ce9ca7e,4f86f92d,9f3a95d1,ed61552a,7a3f5743,7f53f7f1,6ad2d08f,15e73314,6d80467,41557acf,19556c0f,ed7117ce,37040823)}, -{S(1b8462eb,1ccdf7b2,b8372f2f,cec1f479,ab07c09f,cb26d6c3,965ec73,4d654f81,62f6755,b4a7891d,55de6427,fbc37d33,e4eea418,a2c04392,a3d11807,ccc9025), -S(c3b55f99,9cd9113c,fcb4f29,be00c785,cc70d1c1,f1cfd0ed,593abe8d,260bd2bb,8945790b,5696225a,1c6a1f45,1d6b085e,cde2f332,df068271,f6279877,6d1015aa), -S(a4b41b41,1a255142,ee62144d,96ccfdc,a3cdf5a6,af32bdd8,d1c3d26b,d6aab0b9,3ade7f6a,299ee56c,299fcaad,72a146d2,62db1dcd,2ea1a355,d6e00294,ee34c3), 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-S(7c48371b,7eb5655f,b9d95bc3,5660d783,b1884573,d2934346,c5a5342b,a0949cb0,8b8cfb2,4cab96fa,1ee1e5d7,7dade5bd,23fa7868,445d9ad4,723529db,38110dae), -S(6ac2912f,d959d41c,19ff8ac4,bc136e85,91944b79,470d633f,b9fe65f0,f72541f4,63351f35,d4a7787a,31ef0bd6,f28aedd7,864ec5ab,7d841f11,9163e351,e070fcba), -S(db08e4fd,63e16bf6,abc05d78,be6bccc7,c9b8e15e,334ad697,9205a2e9,c2100e15,eeb0ba62,e1a5ee98,c2e2cc5a,8d9cbf11,d265019c,9eea8f50,4aa1e50,a422d4e), -S(4160dad,5255da89,12f69754,77b445a7,26fb7b8f,6ae8e2bb,d6276ae7,2a31afb8,ab0817bc,7a9b6907,9f6db9f3,c9a77718,23a1d79d,9f2739b2,cbeca18f,e5b8fbf8), -S(3794fc72,f432c983,2f9ba8dd,b46b1c64,d979e899,78b3c14f,2f903ec4,75af091e,a898cdf,7cdaf6c0,3715e38a,4bea1081,fda150b3,7faa4a11,ddbdc350,c7e0bb05), -S(244b87a4,fcecef37,76c16c5c,24c7785,be3b3c13,46595363,b8c066ec,45bfe561,9642f5fd,e0ec25ed,bd2129ca,6c023ec1,a2eadac7,f6ec5b7d,2b7fe894,41e5aa11), -S(9de52b81,157165cc,aef44485,4c2b3535,a599a79,80d024de,5334b385,ecbb2e91,74fca165,26fe2f87,a41ce510,4dd5634,5cf98c11,803c0392,3eb4b8b7,60240c02)} +const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS] = { +#if 0 +#elif (COMB_BLOCKS == 11) && (COMB_TEETH == 6) +{S(629bee58,a391595f,eb20c534,4933937a,cdb2eba1,86d49f8b,845c1b5f,4ca87182,8dae4162,73c6c068,2e2aede4,76efa86b,7612c07e,f72070d0,dc4486f1,47e95085), +S(6fd5e13c,a94b874b,28cd574b,726efdbf,143ab108,1089b846,7b5b2ebe,6c6a3c8f,4a4db306,52c9772a,868b2859,57c5a005,d83f6afa,6e65d87c,700da998,ce651396), +S(609b6576,191514f4,83f5b428,500cfbaf,96871b8b,3348fe5c,1a131768,bb266b6f,90abb9c1,1bf184d2,8dbc424a,bbf74eb8,de4e0582,2ea5dd93,7d1e8b30,e5f695e7), +S(b5ec0263,27cfd922,23a46abf,a755e6fc,547806ea,333666cf,a43865a3,f4ae647,143353c,cc733d02,617f7764,7dc29c65,67a2e245,aed27120,e5fc11b3,95ffb9c9), +S(ac1fff6,cd869ed5,ca920544,1ceb990c,ce304998,10e27587,6536dcd8,1d4cd15,67a7a012,3e5ea292,85dedf0a,9f138b80,58a1d23c,2a233c5d,783bec39,b6482126), +S(c1807552,644130a3,f9b8aea0,29fdccdd,59e03e27,ff2cb1f9,9d13cf0d,42da7b13,85e99587,f77a25b0,bc64b882,bd279fa3,5be0262e,c2f5253c,70a43261,bd1fe361), +S(42919187,2b3c6877,c3b91266,79266e49,9fa37a8d,74d094a8,8c4a3638,89c2717c,1e4bd2df,a9757d42,285cca1d,856b49b0,ad481ad,828d826e,8921f744,7e04d6ad), +S(d4b10124,283afe03,4b278e5a,91daf61b,be608417,fc845e1f,9b9f52a5,43659f2,fd070859,75e2bad6,b34e0396,47b81a87,cab9fb,fdba802f,6ae3cc8b,67cc98cb), +S(ec4c2c4c,722a54ae,edc37acd,cb6ac490,3077bdf6,3f2c145c,7eb25e74,87c046aa,327bfe37,d745283b,a385dfd0,8e30b61e,2b4e5499,4432be41,fd3f0d31,c00e9ed7), +S(559e40a7,e151eeeb,46442b86,aaf4922c,12030adf,7279bb2,2bca24c6,67566a05,5483756f,60d26b97,82033592,cec21681,c5b5496a,c47f600,2013e5e5,f2ea82df), +S(c1d2e92,19c0138a,9f0a34fd,acc92f4,eafe13cf,1c004b6a,3175133d,6cc7bf12,8fa653f2,a20c1262,be59c7db,20f12579,b2adb1ff,54d84ebc,e5ad4116,3d2ebc23), +S(1becc6c0,e4861825,576624e4,fa622c01,139d9cb0,50c12062,9b87ae6b,9622245,d8516472,656ea10f,5b23839d,43f64e,85fc727b,faafcb6c,fc9c6e89,bf9c038d), +S(c483c2b3,8ceefd35,a9fa9e7a,da242c,d618cd6c,8b3bcb62,e39d68e,c1effab2,71964aca,9101863a,d7c865f2,41e814ef,3c20face,f46246b6,4a742026,471b2495), +S(3487162e,40c7efa6,92bc827f,9af9121e,af5ac549,b4ab6585,6353d699,a94a3783,f5b29042,28833bd6,e3ce0deb,dc0396ca,42701752,f930f437,d042cab2,8f135c1a), +S(eb3b21fa,f733f15a,b94ee0e4,3378e9b6,47571aff,d69292ad,a1b107c8,ad511d5f,cd95b4ad,b8768858,cb750cbb,4fa64523,6b6fde59,ceb71dd4,73a7fe48,9e5a2304), +S(21c8dd7c,34d3f333,758d1d1b,72748fe0,8695af46,3d0bd9ad,e4a6498d,1d01e9df,634d8671,7b885f36,a54b6691,35c3c026,667f3cb6,f2577701,beb0d3bb,84f07940), +S(608e33b8,14998177,5d78e286,d5c6436f,99623417,4e887da0,a95274a0,d120b57d,5d094ca1,181f8dca,87d1e043,f798bfaa,f1004edf,a470fce0,7ff8b124,328397a5), +S(f77710b4,dbc5f7fb,ac6b015e,956ed26a,6bbfb540,6a931a30,d4215aed,de610c7,7508a762,a7333ca8,ac244d6,47e47647,c62c82d,387d8df6,175fb563,1de83d54), +S(f37040aa,b0347fe,976d5980,cbd83db5,4d8cb90e,7f2d2118,85159911,af769d61,df228dd7,67fa0d5c,d44c3f6d,b09e662b,99faa5c6,688b088d,949ddab1,6f11e42), +S(7bf929f3,25374a1b,a0cbaa50,db47fea2,a5d1e3f9,3c34bddc,ea5c2250,d8252071,8fe2d2bf,b23a6755,50f16760,a6511ae8,4e4d316c,45d7cd62,4411ad3f,c72805c), +S(261bc0f3,a69d636a,b82248,6132bf91,2ab7ca95,e9a4925,b3f68bb4,745ee63a,68f52f7,df1ec349,77856c74,7b280907,cb3d456f,988ff7a7,225c4ace,8457a804), +S(60ef138d,e7086d09,711defff,68dad211,88d7f878,d616efb6,dbd3d498,5b730243,ca7c3297,3c56b178,b0cfb8a,da98748a,c3d06cc0,7fe050d7,3a6a9695,52500f8e), +S(8bfef3d6,4be90cac,8b83bf20,906b4277,75a6d982,23d5141f,b74e3851,50bc5eec,ea8b6b4c,c7c8d9ba,809ca811,3621c72c,b82006d7,81ff5f25,32010fc9,57858324), +S(9ca85f3d,4ba47ab0,e9fc0a28,74cd10a4,a8ba9aeb,ff319405,6140fea9,6e395ff3,41182ce8,96554f45,93768fc3,a656981e,69719f05,5469f9e4,ba79de22,bcfe8a8e), +S(38cd0c79,437b1299,9567999a,f54d4f8e,82a6354c,8a93a5ef,56ca2ff5,8a1ce180,c96f5ed,d78de5,9f560716,82b60b13,f06de5f9,49206258,80544bfc,73dfa76a), +S(be37e05b,9369b159,6b390290,3eb8fa0f,f221f599,1270c5f0,47edf62e,a1d0e6e2,4fc860a7,1fa69a27,fbefd8c0,906fc68f,4713fa2a,b37aaa2a,7edd3c8c,d100963c), +S(aa640e99,b091512f,85faed73,a3ac8ede,ee120513,b661f812,9a046a74,d624aaaf,dfb48ad1,a01fd508,e5652406,b681cc9e,13d0d600,68411dae,72d68061,6f6b94ff), +S(d08bb931,f008a1a7,38a16200,9fbf1ab3,d3d455dd,47f45cd6,617e81,8b8e0245,18d92218,21c9a2ed,bcaa5d26,2b7aba18,1f7f1e,7f2007a9,ec6f7d18,f038d723), +S(4e6ed1f6,c39c894f,eaa53e1c,e115fda,75fecf8a,55794628,d9a2202a,9dd5c719,1bb97d73,2e0e137c,e9c94d4c,763f9a6d,e1496548,904460d,df1c3a2f,73b66c1e), +S(867e83ae,610a24bf,401119d,8e1af6dd,414a7161,52b2ffdc,50f71f77,2fa8409c,d5d21ad5,ef365994,b3ad0533,92df82a5,6f677cb3,8500781b,a769dd50,1f6d235), +S(6031361c,6dffc505,dc7e1887,bc75c1d9,5a9db023,8b7240e4,c254f855,b35686fa,b9a9a979,c6b8c576,11eeb783,8b4ac2ae,66506bb0,a203fdf6,3efa9b59,98c7643d), +S(8502d0f,34684503,68784822,f4510c5c,562ad30f,be29a792,f0667e83,b6f95773,cd0e6511,763674b5,57fac9f1,bb62f9e2,3163a0a4,cf08cd52,a6d10064,d8b02ade)}, +{S(840e41bf,13203a96,f41ea041,1ec034fd,db0dac3d,53b6bbc9,4f8a3a78,d0371235,71b51550,a79af319,56c9b3de,fcb167d0,c3e318eb,a852eedc,78490dc5,fdaaca85), +S(5678a034,a24a1607,d78036b2,23eaa3c3,845c9f9e,7293f656,7390354,2f714d5f,57f624be,ff5d1774,c6962dd4,d14cc565,acae170c,7aaf8c6d,b0552daf,e3bdf48c), +S(722012a5,57ed9c9f,9d737a87,39954469,ca12ab29,9dedbaca,507c1259,7a27c6f1,6c28881e,a0e62453,80d73a7f,499f05a4,d9a9c04f,c2ba11e6,9fdd0b6,7c5d5ee4), +S(70c638d9,3eeab892,8bccf1e4,82368eac,a03ca8f1,b30f7b2d,34258539,8c95c014,f8635082,3dc2a200,67dfb293,891929cf,18a810f2,5c85c169,159a4b44,b190a029), +S(2ce4a530,b5f6c77d,c0c4d891,6e89b24b,c25c04c2,723842d4,29300f82,5e260458,6f306154,4d1195ea,98b972e,91a962e2,95a2a4eb,9be03949,a789b01c,f61dd705), +S(89e71182,851bb441,c0af4e31,cad89dc7,3947369b,fef12eb6,b1dfa71a,72498c51,20b7ffd5,878718c2,2b5bfdc,ac422794,63aac0da,4bcdec2a,8f3b538e,3a9f574d), +S(f01f06b8,da0ba34c,e1045e83,adb95fbe,b76f134b,35235539,6b07f8de,9dd25869,afa0fb5b,45ad1f24,73460f17,5ff4bfd8,f162262,65c423fd,ebd92bc1,72f3aa7b), +S(f0c217c8,1dda2201,1f46648a,e096906d,71fba006,1b4dfdb9,85dfe59c,9d8f1894,d5ddd6b7,bdf2a6f6,cba166ae,4c01c60,b012c9ee,ad954a46,6f631f9f,928b3fc), +S(bd9acff2,87cc2a2b,396aef61,b0937a49,c43a2366,a2c3c461,c1283987,a7b6f53,828de0ad,b9067b2d,8f8fefe6,ce3a5c94,e7d63ea1,7c891d2c,5f266e8c,a5fac116), +S(ee314d97,2b9c10a4,fec9f8d,ccab0015,d4923e52,d915eae8,b319911c,7a8fe379,82057aef,ff05c496,ba8b4753,c4e57832,aba9a724,adf70a9f,1b3765ef,952ab52), +S(d39fa7b,9b87ee2a,aa32454a,13470406,c8024c39,cf387143,3364de62,cb94c103,5cf1309,530f9e09,c9b38ad9,3a778ec5,533f60f6,4a42e31,1cd97c2f,c984b9cc), +S(5ab1a07e,5f6aff68,16780e5a,23c9faff,b29cd7d7,5bfb8984,4834fb6b,c6b34a14,deac47fd,6567023e,b5ec7a94,a0133bbf,158c0425,c0a6d288,23558986,314d54bd), +S(b1a4ecc6,94bb5212,98e80464,cffacd32,331ebc7c,4d545141,a129b522,a4818830,9772044f,3722ec57,d76a049b,2afce2b6,319f0bbc,b17c7f06,175a288f,3ce3534d), +S(56015e42,81aed744,a0859e29,eb913a7c,b44ebd39,2ed8c0b7,1eb42f9c,9c93c8ba,8f973650,45f7d8a9,24a276ac,20056895,fb2b0aaa,4b35468a,a51f41f,722b9d33), 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+S(420f1078,27c75c95,d5bc657b,a46cbe2b,415a7d42,ad62cdf1,6c84ee89,22215379,8b257a28,e0b15fcc,ae0b555a,cdadf4a,be93bbb3,a208ee45,77710a9e,d58da7fa), +S(28859abc,b60a95e6,b26c0996,566bf798,60c1a194,2d3342f7,9655f286,32f9d5df,2a770426,5eeca5d8,87840cab,3923d868,aa7b7b18,f9d19941,738ca006,54ccba6b), +S(c33c317b,490e2266,2649a021,e87f6596,3897633c,90be208a,193f1d52,28614059,af850be0,d18708bf,d0e1f523,c1a4fda8,9a6c156a,55f82518,2bd99bb9,b999a358), +S(2333793d,b961d3d6,740fc725,6cf9d833,81b5dc92,85b6d83c,5c343aa8,5baea83b,accc199a,ced3012f,b6db99c4,7a36c30a,f88e7eee,b62c2ed4,1352b488,ba0167bd), +S(4834aa89,caa9c25,a99ee4da,e4a64c15,25a5d74f,9ce573ab,ff44b63f,c3a578aa,fb189539,448a265b,eb87a268,b71a18db,f12fe8ac,e502720,c83ca156,c1cc7a39), +S(432cc05f,c78b0d56,e605391f,e4708bda,a1ff3edc,96a729ca,aad3cb0,300c4d4d,6675d8ee,ece8c078,e1bad373,247ce383,d4c65519,4a6aed20,a7ca5eca,34a89c30), +S(874fda6c,b284ca2d,a216bbda,28249388,88da3968,7f615ab,52c8e61f,b72a1fd,2d7199e2,b0b88f45,18e6eeb1,240b2ffd,a9bfcee4,6f754a4a,3db7959,dfe857e6), +S(7fe21a0f,3ef67d60,1de05f67,2b163285,a5577948,ee78274b,19fc35cf,2d2f6801,62fb2ade,5e2fffe1,28542038,91a6ea73,aabfa35b,1f7fb000,95190adc,de6663f6), +S(cd0540e9,efe497b6,2beb2227,a2da819,a1ac3bed,8eae24c2,6e2991c0,a707dd69,446c3218,7d0c9229,d65dad2,1392e4a1,66445386,4a5c1620,bf768fad,20a45c06), +S(a533c295,74e78024,52218573,66c30001,6159d772,f5bedcff,28d7f7cc,3051457,b61a106e,e0166d54,5e1b945a,f3e4e285,31a34cb8,56a34dd0,cd21184a,9555eeee), +S(5e144f44,ed88845a,c089331c,eb58811e,4c164e02,5d1758ee,51a7a522,c66deb30,ff95cab7,597cf62f,e1aa8df8,a2cd3844,d71ab4dd,4eb02a9e,6175077d,261e2540), +S(97487a40,9562ee2,7620fc2b,c5bd55ac,6509d487,8ab41257,53884b97,7c5a84be,e52a282,1430c540,5f1143d0,62b69faa,16592f02,cb9b8602,d52c9fc3,70769091), +S(906f9ac1,d3db4690,d74771b7,f1940679,b0de7731,a68d7d35,89caae34,c3760eea,6f2be7,2275dd5,1e77a066,b8d3c303,f565cb97,b8fb0dd3,14445d18,876665a6), +S(4c355a31,d17617f3,5d4066c7,a125b2bf,1d6f77e6,27b585ba,2d271a29,a88c81b1,6a686e69,237b75a1,a1ecb86f,b715e858,35aa0686,e2ef10bb,38b762ca,5646e9db), +S(15aac1a8,9b6b7629,57375d4e,aad87c9d,e1fc2617,89e57d29,731fe96c,1380140c,2968c0b2,2c3dd83f,3286d37a,639bcc14,3d89e75f,cac1da56,7e07799a,62af1008), +S(4642f29b,37b87118,65767998,d00b41b9,fca6718d,bfc55785,1c459efc,2ea15037,a1ded31c,be33cc1,425df851,998ddd11,1518ed13,f84756c1,c7cc46cf,3f5e9a72), +S(9554abe,9e092bd2,c4ff46a0,abd0b7c7,fb73d85f,1c01fd96,83146559,306ea727,89e2c07d,db1fe6b0,9872ce91,66ce9ca8,1124986c,c7e48e09,f80aa3cd,70987711), +S(1c0977a,a773c56,2e36dd15,58b95fff,d35b4dea,ac464011,ad7b79cd,26227238,e04ce4c5,b0b165e9,87dfef97,d32094ea,3e86e6dc,33a4c96f,c9470336,34b0db68), +S(71d44171,60361c39,6295e5cf,b1540ef2,1ca046b5,98645a23,e8c9772,ac21be4f,7122d5b,32a654a0,1476a47f,d3317a25,ed51536,4a21253,f4068dc8,14660c55), +S(d906f59b,4d56bc12,f26d60e6,6fc31733,e5450707,89025ea3,8a6193c8,520ddbc7,cd7f414b,c6cc79aa,4c65b943,ff914234,a9d85cf1,9853be59,2a71fe1d,dbb20163), +S(11b7dfb3,17dd5c23,6b8084d4,f3cc157f,c25c0e70,8248b472,240963dd,9a3fbca7,dd2c8caa,2a2d14d7,fbec267c,9fe87ab2,8b1ddd92,dd100449,f75ef1da,97d4e5e), +S(3ef8274a,fca8fbb3,1894d7a2,d1ad59a9,4951b21,328b1e84,ecaa6df9,cc1ef473,2e4f0c04,f5da671d,4a2b641,46ae749,27bc35b5,98a54190,3883469b,3e7874de), +S(a861fc27,f5e6300d,ec0fbf6c,3315d053,98f90b84,2422992,bdfba11b,1c1c7e34,75a7458,5d98bca4,e3517897,afef848,8e524168,a586d8da,18834171,4b51846b), +S(9537019f,57d7869,2a358758,47e885bd,1594a426,4412c595,62eea9ba,4ab34de8,21bfd84e,a66650dd,79cc8c13,7217a351,57b9c046,938f20b7,246362c8,6637d5f4), +S(71c80c38,b1889d4f,507132a1,87af0c91,79994b84,1b816c8a,6d130a,df1b500f,8de1f76c,100e75b5,1572da6,d08c76b2,10cdc447,cf903e0e,2b00e002,5dee0ce2), +S(2fa9ce2f,59865d10,17880d74,d31cd446,5c28ff56,50f29e6b,d74a810,977ef9ec,6c5a2073,55c0dd3a,b994778a,6bd02b87,80ba8e1a,899330ee,cd8781b7,6e15cddc), +S(96ca6bb4,bf74c748,75703386,ae02dc29,13329d9e,a5395892,df1c6f57,4a84fa4a,fcb510b6,dcfe8da5,690f8fc9,4dea8ac0,e42af209,35c33347,b088cc79,52e98b1d), +S(36a066ae,694f2645,25cba884,956ebd46,ae568acf,11664965,63cee00d,a32f2199,5d1e975a,856ebd1a,cb1fe254,101e89ab,ea089e8a,b38bbd0f,1100e914,709fd965), +S(4922879f,800234c9,63f4b572,d236843,4c4da5c8,ff741982,c3d1e341,841d1309,9b259470,24b5f4cb,97c68d18,f7f8dfca,1e57f7de,63208765,2ce15770,98f35494), +S(ee27e2b,acf95f6d,dbb5ebae,bbf181bb,43322a3d,6db87e78,14e57a3d,41b581e0,3d6a18a,daf69ae4,88ecc9d8,7d6b1bf2,c8d65544,3f4b45b4,c5a0ac51,7b1dc3ca)} +#else +# error Configuration mismatch, invalid COMB_* parameters. Try deleting precomputed_ecmult_gen.c before the build. #endif }; #undef S diff --git a/src/precomputed_ecmult_gen.h b/src/precomputed_ecmult_gen.h index 7256ad2e30..283738a5ce 100644 --- a/src/precomputed_ecmult_gen.h +++ b/src/precomputed_ecmult_gen.h @@ -14,9 +14,9 @@ extern "C" { #include "group.h" #include "ecmult_gen.h" #ifdef EXHAUSTIVE_TEST_ORDER -static secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[ECMULT_GEN_PREC_N(ECMULT_GEN_PREC_BITS)][ECMULT_GEN_PREC_G(ECMULT_GEN_PREC_BITS)]; +static secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS]; #else -extern const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[ECMULT_GEN_PREC_N(ECMULT_GEN_PREC_BITS)][ECMULT_GEN_PREC_G(ECMULT_GEN_PREC_BITS)]; +extern const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS]; #endif /* defined(EXHAUSTIVE_TEST_ORDER) */ #ifdef __cplusplus diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 1a8be57d07..a17d32de57 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -389,7 +389,7 @@ int main(int argc, char** argv) { } /* Recreate the ecmult{,_gen} tables using the right generator (as selected via EXHAUSTIVE_TEST_ORDER) */ - secp256k1_ecmult_gen_compute_table(&secp256k1_ecmult_gen_prec_table[0][0], &secp256k1_ge_const_g, ECMULT_GEN_PREC_BITS); + secp256k1_ecmult_gen_compute_table(&secp256k1_ecmult_gen_prec_table[0][0], &secp256k1_ge_const_g, COMB_BLOCKS, COMB_TEETH); secp256k1_ecmult_compute_two_tables(secp256k1_pre_g, secp256k1_pre_g_128, WINDOW_G, &secp256k1_ge_const_g); while (count--) { From 5f7be9f6a53a99f4a7d00e79c1dfe37eebe6edf8 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 29 Dec 2021 14:37:38 -0500 Subject: [PATCH 344/557] Always generate tables for current (blocks,teeth) config --- src/precompute_ecmult_gen.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/precompute_ecmult_gen.c b/src/precompute_ecmult_gen.c index 11ab8ba089..ec54d2b154 100644 --- a/src/precompute_ecmult_gen.c +++ b/src/precompute_ecmult_gen.c @@ -53,6 +53,7 @@ int main(int argc, char **argv) { const char outfile[] = "src/precomputed_ecmult_gen.c"; FILE* fp; size_t config; + int did_current_config = 0; (void)argc; (void)argv; @@ -77,6 +78,12 @@ int main(int argc, char **argv) { fprintf(fp, "#if 0\n"); for (config = 0; config < sizeof(CONFIGS) / sizeof(*CONFIGS); ++config) { print_table(fp, CONFIGS[config][0], CONFIGS[config][1]); + if (CONFIGS[config][0] == COMB_BLOCKS && CONFIGS[config][1] == COMB_TEETH) { + did_current_config = 1; + } + } + if (!did_current_config) { + print_table(fp, COMB_BLOCKS, COMB_TEETH); } fprintf(fp, "#else\n"); fprintf(fp, "# error Configuration mismatch, invalid COMB_* parameters. Try deleting precomputed_ecmult_gen.c before the build.\n"); From ed2a056f3da9c3d75a1604832b4cd53e1871e784 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 29 Dec 2021 15:09:52 -0500 Subject: [PATCH 345/557] Provide 3 configurations accessible through ./configure --- .cirrus.yml | 2 +- .github/workflows/ci.yml | 18 +- CMakeLists.txt | 23 +- ci/ci.sh | 4 +- configure.ac | 35 +- src/precompute_ecmult_gen.c | 6 +- src/precomputed_ecmult_gen.c | 1410 ++++++++++++++++++++++++++++++++++ 7 files changed, 1462 insertions(+), 36 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 04aa8f2409..6e77403bf5 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -11,7 +11,7 @@ env: BUILD: check ### secp256k1 config ECMULTWINDOW: auto - ECMULTGENPRECISION: auto + ECMULTGENKB: auto ASM: no WIDEMUL: auto WITH_VALGRIND: yes diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 4ad905af52..d246682044 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -22,7 +22,7 @@ env: BUILD: 'check' ### secp256k1 config ECMULTWINDOW: 'auto' - ECMULTGENPRECISION: 'auto' + ECMULTGENKB: 'auto' ASM: 'no' WIDEMUL: 'auto' WITH_VALGRIND: 'yes' @@ -83,8 +83,8 @@ jobs: - env_vars: { CPPFLAGS: '-DDETERMINISTIC' } - env_vars: { CFLAGS: '-O0', CTIMETESTS: 'no' } - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - env_vars: { ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } - - env_vars: { ECMULTGENPRECISION: 8, ECMULTWINDOW: 4 } + - env_vars: { ECMULTGENKB: 2, ECMULTWINDOW: 2 } + - env_vars: { ECMULTGENKB: 86, ECMULTWINDOW: 4 } cc: - 'gcc' - 'clang' @@ -377,8 +377,8 @@ jobs: configuration: - env_vars: { CC: 'clang', ASM: 'auto' } - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'auto' } - - env_vars: { CC: 'clang', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } - - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } + - env_vars: { CC: 'clang', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } + - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } env: # The `--error-exitcode` is required to make the test fail if valgrind found errors, @@ -431,8 +431,8 @@ jobs: configuration: - env_vars: { CC: 'clang', ASM: 'auto' } - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'auto' } - - env_vars: { CC: 'clang', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } - - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 } + - env_vars: { CC: 'clang', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } + - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } env: ECDH: 'yes' @@ -487,7 +487,7 @@ jobs: - env_vars: CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -g' - env_vars: - ECMULTGENPRECISION: 2 + ECMULTGENKB: 2 ECMULTWINDOW: 2 CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -g -O3' @@ -600,7 +600,7 @@ jobs: matrix: env_vars: - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int128_struct', ECMULTGENPRECISION: 2, ECMULTWINDOW: 4 } + - { WIDEMUL: 'int128_struct', ECMULTGENKB: 2, ECMULTWINDOW: 4 } - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } diff --git a/CMakeLists.txt b/CMakeLists.txt index 9ef7defe51..a70f2edd6f 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -101,13 +101,22 @@ if(SECP256K1_ECMULT_WINDOW_SIZE STREQUAL "AUTO") endif() add_compile_definitions(ECMULT_WINDOW_SIZE=${SECP256K1_ECMULT_WINDOW_SIZE}) -set(SECP256K1_ECMULT_GEN_PREC_BITS "AUTO" CACHE STRING "Precision bits to tune the precomputed table size for signing, specified as integer 2, 4 or 8. \"AUTO\" is a reasonable setting for desktop machines (currently 4). [default=AUTO]") -set_property(CACHE SECP256K1_ECMULT_GEN_PREC_BITS PROPERTY STRINGS "AUTO" 2 4 8) -check_string_option_value(SECP256K1_ECMULT_GEN_PREC_BITS) -if(SECP256K1_ECMULT_GEN_PREC_BITS STREQUAL "AUTO") - set(SECP256K1_ECMULT_GEN_PREC_BITS 4) +set(SECP256K1_ECMULT_GEN_KB "AUTO" CACHE STRING "The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms). Larger values result in possibly better signing or key generation performance at the cost of a larger table. Valid choices are 2, 22, 86. \"AUTO\" is a reasonable setting for desktop machines (currently 22). [default=AUTO]") +set_property(CACHE SECP256K1_ECMULT_GEN_KB PROPERTY STRINGS "AUTO" 2 22 86) +check_string_option_value(SECP256K1_ECMULT_GEN_KB) +if(SECP256K1_ECMULT_GEN_KB STREQUAL "AUTO") + set(SECP256K1_ECMULT_GEN_KB 22) +endif() +if(SECP256K1_ECMULT_GEN_KB EQUAL 2) + add_compile_definitions(COMB_BLOCKS=2) + add_compile_definitions(COMB_TEETH=5) +elseif(SECP256K1_ECMULT_GEN_KB EQUAL 22) + add_compile_definitions(COMB_BLOCKS=11) + add_compile_definitions(COMB_TEETH=6) +elseif(SECP256K1_ECMULT_GEN_KB EQUAL 86) + add_compile_definitions(COMB_BLOCKS=43) + add_compile_definitions(COMB_TEETH=6) endif() -add_compile_definitions(ECMULT_GEN_PREC_BITS=${SECP256K1_ECMULT_GEN_PREC_BITS}) set(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY "OFF" CACHE STRING "Test-only override of the (autodetected by the C code) \"widemul\" setting. Legal values are: \"OFF\", \"int128_struct\", \"int128\" or \"int64\". [default=OFF]") set_property(CACHE SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY PROPERTY STRINGS "OFF" "int128_struct" "int128" "int64") @@ -294,7 +303,7 @@ message(" schnorrsig .......................... ${SECP256K1_ENABLE_MODULE_SCHNO message(" ElligatorSwift ...................... ${SECP256K1_ENABLE_MODULE_ELLSWIFT}") message("Parameters:") message(" ecmult window size .................. ${SECP256K1_ECMULT_WINDOW_SIZE}") -message(" ecmult gen precision bits ........... ${SECP256K1_ECMULT_GEN_PREC_BITS}") +message(" ecmult gen table size ............... ${SECP256K1_ECMULT_GEN_KB} KiB") message("Optional features:") message(" assembly ............................ ${SECP256K1_ASM}") message(" external callbacks .................. ${SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS}") diff --git a/ci/ci.sh b/ci/ci.sh index 3999af4f1c..c7d2e9e4ea 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -12,7 +12,7 @@ print_environment() { # There are many ways to print variable names and their content. This one # does not rely on bash. for var in WERROR_CFLAGS MAKEFLAGS BUILD \ - ECMULTWINDOW ECMULTGENPRECISION ASM WIDEMUL WITH_VALGRIND EXTRAFLAGS \ + ECMULTWINDOW ECMULTGENKB ASM WIDEMUL WITH_VALGRIND EXTRAFLAGS \ EXPERIMENTAL ECDH RECOVERY SCHNORRSIG ELLSWIFT \ SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS\ EXAMPLES \ @@ -74,7 +74,7 @@ esac --enable-experimental="$EXPERIMENTAL" \ --with-test-override-wide-multiply="$WIDEMUL" --with-asm="$ASM" \ --with-ecmult-window="$ECMULTWINDOW" \ - --with-ecmult-gen-precision="$ECMULTGENPRECISION" \ + --with-ecmult-gen-kb="$ECMULTGENKB" \ --enable-module-ecdh="$ECDH" --enable-module-recovery="$RECOVERY" \ --enable-module-ellswift="$ELLSWIFT" \ --enable-module-schnorrsig="$SCHNORRSIG" \ diff --git a/configure.ac b/configure.ac index 158ed5d769..68eae5ad8c 100644 --- a/configure.ac +++ b/configure.ac @@ -213,13 +213,12 @@ AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE|auto], )], [req_ecmult_window=$withval], [req_ecmult_window=auto]) -AC_ARG_WITH([ecmult-gen-precision], [AS_HELP_STRING([--with-ecmult-gen-precision=2|4|8|auto], -[Precision bits to tune the precomputed table size for signing.] -[The size of the table is 32kB for 2 bits, 64kB for 4 bits, 512kB for 8 bits of precision.] -[A larger table size usually results in possible faster signing.] -["auto" is a reasonable setting for desktop machines (currently 4). [default=auto]] +AC_ARG_WITH([ecmult-gen-kb], [AS_HELP_STRING([--with-ecmult-gen-kb=2|22|86|auto], +[The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms).] +[Larger values result in possibly better signing/keygeneration performance at the cost of a larger table.] +["auto" is a reasonable setting for desktop machines (currently 22). [default=auto]] )], -[req_ecmult_gen_precision=$withval], [req_ecmult_gen_precision=auto]) +[req_ecmult_gen_kb=$withval], [req_ecmult_gen_kb=auto]) AC_ARG_WITH([valgrind], [AS_HELP_STRING([--with-valgrind=yes|no|auto], [Build with extra checks for running inside Valgrind [default=auto]] @@ -358,19 +357,25 @@ case $set_ecmult_window in ;; esac -# Set ecmult gen precision -if test x"$req_ecmult_gen_precision" = x"auto"; then - set_ecmult_gen_precision=4 +# Set ecmult gen kb +if test x"$req_ecmult_gen_kb" = x"auto"; then + set_ecmult_gen_kb=22 else - set_ecmult_gen_precision=$req_ecmult_gen_precision + set_ecmult_gen_kb=$req_ecmult_gen_kb fi -case $set_ecmult_gen_precision in -2|4|8) - SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DECMULT_GEN_PREC_BITS=$set_ecmult_gen_precision" +case $set_ecmult_gen_kb in +2) + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=2 -DCOMB_TEETH=5" + ;; +22) + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=11 -DCOMB_TEETH=6" + ;; +86) + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=43 -DCOMB_TEETH=6" ;; *) - AC_MSG_ERROR(['ecmult gen precision not 2, 4, 8 or "auto"']) + AC_MSG_ERROR(['ecmult gen table size not 2, 22, 86 or "auto"']) ;; esac @@ -475,7 +480,7 @@ echo " module ellswift = $enable_module_ellswift" echo echo " asm = $set_asm" echo " ecmult window size = $set_ecmult_window" -echo " ecmult gen prec. bits = $set_ecmult_gen_precision" +echo " ecmult gen table size = $set_ecmult_gen_kb KiB" # Hide test-only options unless they're used. if test x"$set_widemul" != xauto; then echo " wide multiplication = $set_widemul" diff --git a/src/precompute_ecmult_gen.c b/src/precompute_ecmult_gen.c index ec54d2b154..25ab445bc0 100644 --- a/src/precompute_ecmult_gen.c +++ b/src/precompute_ecmult_gen.c @@ -17,8 +17,10 @@ #include "ecmult_gen.h" #include "ecmult_gen_compute_table_impl.h" -static const int CONFIGS[1][2] = { - {11, 6} +static const int CONFIGS[][2] = { + {2, 5}, + {11, 6}, + {43, 6} }; static void print_table(FILE* fp, int blocks, int teeth) { diff --git a/src/precomputed_ecmult_gen.c b/src/precomputed_ecmult_gen.c index 25519d3198..95c18bcb95 100644 --- a/src/precomputed_ecmult_gen.c +++ b/src/precomputed_ecmult_gen.c @@ -9,6 +9,39 @@ #define S(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) SECP256K1_GE_STORAGE_CONST(0x##a##u,0x##b##u,0x##c##u,0x##d##u,0x##e##u,0x##f##u,0x##g##u,0x##h##u,0x##i##u,0x##j##u,0x##k##u,0x##l##u,0x##m##u,0x##n##u,0x##o##u,0x##p##u) const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS] = { #if 0 +#elif (COMB_BLOCKS == 2) && (COMB_TEETH == 5) +{S(7081b567,8cb87d01,99c9c76e,d1e0a5e0,1d784be9,27f6b135,161e0fd0,3f39b473,ad5222ac,f062cb39,21b234a7,15b626ae,f780b307,9b5122d1,53210f42,d9369242), +S(228af17e,df90d1cc,a40173e9,478fa445,9780dacd,c3f15b90,fda5d00e,1faa1b51,8ff47c4d,a4ba636a,f656da9,12a81f79,6252496d,1e519886,b2c2b073,25be2b4a), +S(b515ebe0,f48fb34e,9e01824c,d90553af,db116579,96667847,5ebaa700,242fd722,4cf08191,510fbf0,51f9e19a,198f11f6,ea31268c,2a6d384c,60557250,f0553c50), +S(c37581f1,35446ff3,e80cde04,ec987f08,5af3af9f,71d87494,99b03ba,dcb8f78c,9e46324a,8d8754fe,fbda7c34,2446cf72,b7472708,25cfb92f,a22a4e73,4f1e9bc7), +S(768392e3,b2ccbbc,21792f2d,6f43c63d,efcc249,bcd549cb,96abd8ef,4ae59e90,5d061a40,ac3f93d1,82f0f7a9,914fff5d,90bbacb9,1965882c,591e89bf,c49da994), +S(a9db5de9,2d96c715,8ce5ee00,3d186cf1,976f6a76,f1be0714,726594fb,6c1ba564,743df2a8,ee73fb4a,47b3d0f,2f2b8cab,5af5227,f232946a,82676e4e,8bb70c8b), +S(58921d8d,3712f640,657e762a,737ccd0a,cece1459,a2ba8323,20b43903,d4953f93,78c26959,7e422c02,c01fcbef,484a9d44,9f635c82,849bc2a3,2a9bf6ef,3e6f1e7e), +S(bae41760,ade541bb,60028015,f6906b78,aa41515a,d995dc40,afa091da,77ae8b9a,716ff74d,ad6dc24c,77ebe31f,abe19792,41d18b0f,43ff7598,c6ea04c6,6899219f), +S(e836ff6c,6f9e02e2,4e6f6bcc,2f2460b4,9de88730,6d69241f,b22fa574,7e100f80,77c41df1,4d87b6d3,de74deca,ad426635,f85daca0,ab966a4,5a26a972,32105c5), +S(c7f17d19,fbbf28e2,543fceb2,4268ff6f,1b85e189,79b09991,7457fca0,9ba1b5a4,23a6d4aa,83ee15bf,f1655575,3e4162c5,8acedadb,4c4abfc2,54b7018,f477514b), +S(79c337ad,8835046e,572eea35,df76276b,84e99172,7bbc68a6,8c0b743,28619a,af6cf2b3,9c6b51c9,f1f92e42,6598dcbe,39da6196,2abae0da,d5fc8d0a,aa16a875), +S(1e77739b,12d20887,2bfe200b,d202972a,544804f5,2b0969c5,c22fbe1c,b8b23837,880c7490,c0455322,a0f1e67d,34b3fd1e,33c1e7da,83b9b047,5aef7bc1,332ccee5), +S(b1d314c1,74d493f6,c36a893a,830d90b,f1e86d0c,6deceee0,edb77ff4,31e9607f,8a4ba010,ec3e47cb,29d8f056,e056eb73,3b6b35f6,4c742d06,9ab832f4,68bcd3be), +S(2498aea6,471f748a,f14e50e6,bc17e0a3,ee09514d,fccbd174,f8a21d02,dd0fae48,55a3949f,2e4188e2,b3d344ce,6f0276b5,99b121bc,358e8fe6,bc4f03f5,a8219d08), +S(42d0778e,27e87710,dd19285e,d531af1e,7064386d,11b1b3c9,fb788bf2,b0c112dc,37888909,d943825a,9610e37a,362549f,547b7c7d,ae64a27e,c34290f0,b4fc5fcc), +S(af09a9f8,3a21b2fd,69ce14c5,495c680e,df18e426,c1ca5a1c,af56246f,d6ea5bbd,8eae43ca,8e591017,62c4cb02,9e5cacd2,58f0fdb1,ddbef7e2,c5765208,107c96af)}, +{S(4a7f72ed,ebd8df1f,13db15be,3ab296a8,d67edee4,37965f03,eb501205,3518ddea,1f8c4dc1,2d0e59e7,7d30a326,fd4ecbf8,aacd5fb6,7dc7169,898a9708,ac46b972), +S(c4d4f8d4,949d1ff6,559925db,f4d34972,af16062b,d59493b8,b1e0d546,c2870874,cd7f93e6,c0ee3fdc,4267625a,a6620540,4f6d80c3,d0f7210a,ce6b52e,c350706e), +S(773627f7,dcc56184,7eabafa3,42fffade,325b8ee2,a96f2f77,cbe675a6,2942277d,fb0ad731,9bff4c9c,270d93d1,89a4c380,218ec9df,1f564228,641ab35c,46526bd6), +S(ff443101,befd0bd9,e1914864,3eceea06,b9cf711b,1405e3d5,3883a29f,906063ed,aa1b7d9f,59cbddf7,bc1ad03c,44c4295e,efb406ca,7960c683,eca508d1,b2a9a2dd), +S(cbfb6813,a6874b65,9234e866,c2875f70,e45f9f76,3d634752,3f86040c,880a2e56,ed85d1a,6620c1a4,85ba3038,d2ee6590,4e27206b,eaa531ec,1eb5b886,8232cbca), +S(4e85c77b,27788563,aaeba139,975f7125,f3c933b4,8d67ba6a,2e964243,bdd7bb51,200a9d9b,3400c87b,1fb98422,3200aeb8,e6a5af1d,58c061f0,d059c0b8,d431c08a), +S(d58178ed,f0ce32e3,39a524f7,ad389f7d,8817f41f,ed782612,45218816,2a67d4f0,4840df81,5dab9596,93f9284c,54bdee72,f4861d39,3944c648,ecd76ec5,6dd3225e), +S(670f8f7,9b66496d,13692558,d56d4cd7,a1eeb0d6,9e5133ab,4f0a064b,7152fce4,1a72206,6f530586,927c2e39,370d11f3,e251bd9e,eee10303,406b7592,716333d6), +S(10b41abd,ed4de2fe,b7a40050,e61e5982,89a8cf3,6eaa608c,f2a82c63,5788f1d0,532d168d,680e9c74,4d5111da,6aab902a,9a0f5283,7836b9d9,585dbc8b,1a407de4), +S(76abd21b,103aea9a,f04b4040,297894ce,a501474d,9d38d30,8ed02cc7,137bc7c9,b5a432ad,9e92935f,7040897e,3b04152f,693c5f2,cc1e1d53,2c33f70d,185318e1), +S(4335e10d,5e4f02e6,f1b58a0d,ffb473ec,15f735a3,bf96c140,50bae78c,37061db2,1301143b,1f29f122,afcd0230,d46b6b38,b154e589,92b7eeb4,16088968,a7d57485), +S(2b3966f0,7e37e771,ac4c68ad,b8eef3c0,977cb895,2f47676b,e658aa86,76057f67,5382a6c5,bcdd1a01,6d79d817,80faf650,c0a486bc,ea8fb592,1cd3492c,42c91c3e), +S(f7738800,b7fdf237,dc7f03fc,43724011,8b53aea4,4d7953d4,276f3b4d,bf5c0ff8,c1de7924,ef8dfeed,c4fb409,f1a15d4c,5e8ab42c,90ea9c92,867b5b5c,f2921605), +S(5cb07874,ac4ffb86,2da619be,4c8fa38b,e8b261ec,3ec73a12,cd4cf8fc,4f8d5dae,549d1896,4931dabf,ba4553a2,461f2660,87733454,ea8eec6b,f671e3de,60c70340), +S(5cc85d41,7b2ae9ac,dedb1b44,ce78d8a7,8f56b878,1a4b3af6,635a55c1,fead3be7,66a48c79,301e57d4,54cc8644,d2e778a8,45d85762,2c10eb98,d77eb873,e58bbeca), +S(f27211c9,a067b01c,7fe7fbf7,7b5d9b0,eb0f2475,9d541457,6eb24ba4,19fd3db8,e26d28eb,89f7b518,e9ae0b88,fadbfb9b,641d3a44,c59c6f93,ec28a541,486e041e)} #elif (COMB_BLOCKS == 11) && (COMB_TEETH == 6) {S(629bee58,a391595f,eb20c534,4933937a,cdb2eba1,86d49f8b,845c1b5f,4ca87182,8dae4162,73c6c068,2e2aede4,76efa86b,7612c07e,f72070d0,dc4486f1,47e95085), S(6fd5e13c,a94b874b,28cd574b,726efdbf,143ab108,1089b846,7b5b2ebe,6c6a3c8f,4a4db306,52c9772a,868b2859,57c5a005,d83f6afa,6e65d87c,700da998,ce651396), @@ -362,6 +395,1383 @@ S(96ca6bb4,bf74c748,75703386,ae02dc29,13329d9e,a5395892,df1c6f57,4a84fa4a,fcb510 S(36a066ae,694f2645,25cba884,956ebd46,ae568acf,11664965,63cee00d,a32f2199,5d1e975a,856ebd1a,cb1fe254,101e89ab,ea089e8a,b38bbd0f,1100e914,709fd965), S(4922879f,800234c9,63f4b572,d236843,4c4da5c8,ff741982,c3d1e341,841d1309,9b259470,24b5f4cb,97c68d18,f7f8dfca,1e57f7de,63208765,2ce15770,98f35494), S(ee27e2b,acf95f6d,dbb5ebae,bbf181bb,43322a3d,6db87e78,14e57a3d,41b581e0,3d6a18a,daf69ae4,88ecc9d8,7d6b1bf2,c8d65544,3f4b45b4,c5a0ac51,7b1dc3ca)} +#elif (COMB_BLOCKS == 43) && (COMB_TEETH == 6) +{S(e3adcb1a,fe947e6e,7cc4f5a2,df78310a,b235e2c3,bcd75eba,1904de80,c8814c50,e0b27ead,c4bbb9d2,37dad580,6e366674,4a9f9c3d,e024f2bd,1edb11d2,fafc0a22), +S(612c2ec6,f0e9c4ec,c2200d23,ddca77eb,d003be35,61e52b1,890bf846,3bb53ea5,9e944d7b,dfc7a952,c1c5ee15,485d7199,dda19551,2d729628,c215a9e0,285f656a), +S(42053dc0,9f90a7f7,86feca60,d68a5c3c,789e44d2,3479aa13,2d1a427c,621373a3,b338f891,f3930ec7,738669bb,3a29ae2d,637be08a,954f2a8c,acb661af,a660bd22), +S(4d227ea1,5194ed57,10f8ea4d,a639be04,fa68ecb4,f3d2d9c9,43ec32f2,80f74051,28a94075,bda4c195,40c20493,b5391df7,166b1264,b957fef9,683cfbec,4c6e6875), +S(8ec4abf4,d4db3b0,2b0712dc,ef54a405,54b6cac9,3f88fa9d,d8cad4c0,9b94eb1e,4e37e159,517346ee,17e948c4,a17912b0,b29c303e,497cfb38,16796752,99aaf9e8), +S(ab186398,117fb83d,db8b9392,cc888fe2,50d2f604,5a0c3f89,92d8a82c,382175c0,79437224,b3b1604c,fae64902,e3030448,51ef17b8,9af02d7c,54a92c34,7fa2abda), 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+S(cc354aaf,746d756b,9387730f,2f12b999,4fcd815c,6d25cdab,2e1185aa,4aa639b3,fb1dead9,4fd76859,1aac8d79,5c337924,dc155fbe,5cd5c953,4d55ee31,f6d284a6), +S(e7e47c3a,e2bf4307,7f33ec3d,ac1ae2a7,5c669e61,e248f588,590cfe07,3e2186e0,46e9c4d5,4429fdcf,5efb375e,18f46cc8,3fa7a403,6013777f,e450e228,aebd4cd0), +S(c6ed5e63,28ec31b1,37041108,42d4ac23,fbb883bb,349d88db,1d747cf7,325fe9cc,21b8bfa4,b62807cf,d6cd11ed,a38084d5,7bb068d4,9f0dd30e,f3f431e2,b57022e4), +S(331924c7,50b3417e,48e279ff,6ed7f3dc,ba2e121e,9f69f8fb,e64093b6,c38a8cc6,357086be,e4cc0fe7,d45a49fe,41d004ce,80466165,316164ab,3b171f03,b9a7841f), +S(b4319cc9,f3e0d3b,313626ae,5385796b,c49b300c,88ba4553,dec0aa4a,77829372,b8f82bb6,6590afd4,48501f,63de3a5d,8f84edea,35c1ee44,88d6333e,f522a808), +S(da433d5e,11ceccc0,abc5c762,6ce7bab4,2e89b221,f785c409,282de545,f3fceb19,1b67242c,de57efcf,e214423b,506a1ade,718803d2,6dd84d88,97b18ede,590a2fcb)}, +{S(ebae7464,ece277b8,309d056c,cf3775e2,11a77aa,81c316a4,b6b7b953,6f90f539,62a4d6a2,95fdd811,f2051715,322f17e5,1753c9d0,835ef9a0,3e8dc9f5,c69bda31), +S(5b20700c,1af63394,a3e4cadb,b0ea682e,19cf495a,b908418a,d41f4c6c,ea4477f0,8435d15e,34b03a22,ca89c73d,326c2f88,142d2e23,8964ef6d,99287125,79738f78), +S(b2f25f91,138b974b,561328c0,92f50fdf,8a694004,fd4879d0,12a4a6cc,c8059d1d,d9ec0b2d,b8e81b2,f6feaf55,9776ff78,cda3401b,47826de0,ca06e579,9d866c09), +S(64e79790,7783d6fb,321eb785,acdeb2ff,4628270,fec3342c,527c8db0,a34c516e,c0c4da5d,abf3da9c,a8613f82,ca28e84,a1a18376,c9967c08,aaf70bea,7a2f34c2), +S(a50cae84,a08f4f32,4984853a,d4c6bdaf,77eaa788,9cb8fe95,72fd56e,9078ee73,120ecbf,76e47b38,503067c8,36853003,60ed261a,40fdf440,161ef2cd,19786b93), +S(76ff3ac8,80a451a9,6741fc70,82bc4c82,7bd51c08,95eea8c8,b422b8a9,96ba4794,25555d71,d4313a60,b189a154,58e0a40,c643c204,277334e,966e2abd,3a23f6c3), +S(307e5caa,8b708760,3d9f845b,b78f4f10,72c49c10,9747f91d,192f8d6e,70c0f4be,f5992f76,37167e1d,55cd31a6,1cdb4756,85eb1503,34fb6009,e0240a18,fa8302b8), +S(d8e62e47,b28fd165,4d420137,884dcf21,c10cb159,d9885843,da34b0d9,d09b2758,675c75b4,b903ad28,2055a71b,2c470e2b,1dce69bf,ecf160cf,3a027de2,55b723a9), +S(ec5639c7,73dac23d,3008dabf,732dc005,3154703d,26ee3bbc,7689286e,4a73e39f,aaa5ea4a,2cf5c23d,57cdd0d8,8accbbf9,9fd2c213,97bb45f8,83547876,3aab1248), +S(3d928ee3,2065557a,27722f08,5202f48f,40917ed6,c7ac1963,2a122226,8b0cb9df,ece112a4,e7a05ad6,17c2fd83,76f89102,9eb94eb0,930fb23c,a342d7f1,f021a0c7), +S(616228a5,cc6c3a92,cd694cec,4b2b8574,5dfffa90,b2a36d8f,32eaa6cc,2530de51,50d8d140,4d506a78,700f8e82,967b36a5,1b4de644,a8e22271,d509c8d2,4adf3148), +S(6f85f308,e847b145,c13a07be,bebdd4ba,6c138939,6afd8670,733f44a8,969406d0,864bcde1,be36c9c7,b7e04ef8,cd2366e2,b3c22902,5ee7efce,d005ef5b,ff7dae2b), +S(f3d1ecc3,53a82621,1bd78f0f,aa029076,c6ca779,9bdc54b2,128fa3d2,aec00c6d,75aa0cf9,fd0b7bed,19183e34,58142f66,c94a5aa9,3915435e,ae51c1fe,96625ccd), +S(a5918de3,f18cd8d1,2a234f9f,3a19fcaa,2d83671d,ad566f16,8aea2b1f,b9de41b0,c515dda6,43c0f6c8,d8fea16,5d595917,16b7f521,43d3b941,f28585ed,8a49c06c), +S(3c49e2ef,1d2d3464,81e05fa0,33366609,1615ebcf,535f68,be257f35,7bd91592,57901e0a,c8af3a31,aa404987,72c903fd,175c9b00,5c7458ee,ed667f11,57754132), +S(6c45ff2,c0c30320,83c343e6,dc80b4f7,bb64502a,52f412ff,ada521d4,a544a9f0,e9936037,f1e641eb,1cd6f801,a25271d3,cffe67d,c9bd7162,babf9855,9628a9a8), +S(66df5d95,acdf4260,ee0e465c,e3916d79,395df522,aa086aeb,6c283bb7,18296d46,cb1f3deb,8aea0337,625f46dd,903416d1,5647be91,1633c4c0,cf0e629a,413476fc), +S(428bbba5,ef351762,9eee4059,a3339213,40c7fee2,5ccb051c,88d75e53,ba618858,ef18809c,28227ccc,115876df,b3f378cd,374c0670,2c658501,7990e767,922c3999), +S(e8993820,d782657,ed8badc2,d515e360,df336730,860ef49e,65ca58dd,1a385815,feb41189,16c7e8f6,53c7f5a6,5fd7b6be,7a029814,149c4645,847073be,770959de), +S(2b77e42a,63502244,d6c7d1be,54b7857,9e2742d2,7143d689,fa3f70a3,5986ccf1,721e9da8,bee88ad4,2155dc9a,28be505,86648378,1d6af5b1,382cd47d,771e6428), +S(acffce3a,ed6beea3,2ad71633,21e1ca53,6f69ce76,fb5cd394,9d9dcc14,bbcee96,5384c97d,eac946c0,afc85b54,f3a56b79,fe263bff,63e1894c,6d52ef1b,9b456602), +S(e13d8d4b,25bece8d,90a008e4,c004824e,223b06b,7cf65ebd,1215e910,2e67b639,3e92b1f,14cbee57,9640b377,6ed5938f,9aee0e11,b139a678,3f207cf4,6dd7e20b), +S(d8f356d9,d2498eaa,b3fa12a,cb64562b,dff3e270,c7809a31,25a9ae65,9cb1f3c5,a5403cda,2d499a7c,7402b57c,c9f99e3,64f5085a,91fd8cfd,8a67c7a8,dbce04fb), +S(350062b5,22fb5d0a,8c79a5db,29e92216,79b9fbc6,3e1f95ca,e7d087f3,fedffc49,74cacf57,5e79c85b,d7e77a40,796e8750,a3ca57f2,a47cce8f,3d2de02d,b014df0b), +S(c159e630,9ab23135,58ebfb6b,22edaf93,eac8e16,77cd9f3b,1cd9492,20bf8e54,99244263,53f32608,831c6d74,da51d61,c344defe,f4c1e401,6a3db44b,4c57f4ae), +S(9e568b70,36a2daa2,fe7a3a52,49c56eb8,3fe4afa2,decebd60,c6c3245f,17bc6a13,b6643644,274eab9f,5e83c598,14978681,17c5a078,765156ae,3cb65fd3,830e06ae), +S(9bee7471,6b6c1ff5,62c1bc36,57a65de3,99a91d72,115703f4,4c3819a1,87828478,bb23a3da,ed34028a,7d39a7ed,fe2e23b,73e085a2,d6c2e51a,ef2a2076,a7c902ad), +S(c430c044,91228a7a,ea835698,ecf0f552,9aeef469,a36305cb,52902ccd,1c897473,40d0ee56,61cca82,80d11da,bffe97c4,f10c93aa,5e07224c,154b666e,bcd58c74), +S(2be073f6,b294a01b,eda0b0db,6832e4bc,23ef3889,7a859853,5ee726ef,ae0f15b1,6153f846,349c2a98,26008065,8be2a7d8,311a5e70,cc310ff8,7935a901,8d575813), +S(2934de46,a6d921f8,720567e6,b46e6362,36a7ed53,483b13ed,20958452,3225accd,5979698,26927cd7,abfe4c57,c53fc72a,48b71679,174c749d,aecdb057,e6a2d961), +S(4e9991b,92fa8c4e,4e8efe45,66966073,319e80d3,a54d4b7a,b61cfcc4,7ddaa5d5,9d03ea22,21d4d80e,261952e2,73f6a8cf,c31f6091,e5aa0a8f,2281ffbf,1345df9e), +S(ff3d6136,ffac5b0c,bfc6c5c0,c30dc01a,7ea3d56c,20bd3103,b178e3d3,ae180068,eccdc641,7b1bfff1,bf2fc8d3,2269523e,ab89890d,bffe0a19,8f594490,e7739bb8)} #else # error Configuration mismatch, invalid COMB_* parameters. Try deleting precomputed_ecmult_gen.c before the build. #endif From 7a33db35cd5ca3f71510b115a0cd57d2b1fb71b0 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sun, 26 Dec 2021 18:37:53 -0500 Subject: [PATCH 346/557] Optimization: move (2^COMB_BITS-1)/2 term into ctx->scalar_offset It is unnecessary to recompute this term needed by the SDMC algorithm for every multiplication; move it into the context scalar_offset value instead. --- src/ecmult_gen.h | 2 +- src/ecmult_gen_impl.h | 21 ++++++++++++--------- 2 files changed, 13 insertions(+), 10 deletions(-) diff --git a/src/ecmult_gen.h b/src/ecmult_gen.h index edac5a8b45..ba0c818acd 100644 --- a/src/ecmult_gen.h +++ b/src/ecmult_gen.h @@ -103,7 +103,7 @@ typedef struct { /* Values chosen such that * - * n*G == comb(n + (2^COMB_BITS-1)/2 + scalar_offset, G/2) + ge_offset. + * n*G == comb(n + scalar_offset, G/2) + ge_offset. * * This expression lets us use scalar blinding and optimize the comb precomputation. See * ecmult_gen_impl.h for more details. */ diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index b8b4003857..9995c8775e 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -91,19 +91,17 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 * * Adding precomputation, our final equations become: * - * ctx->scalar_offset = -b + * ctx->scalar_offset = (2^COMB_BITS - 1)/2 - b (mod order) * ctx->ge_offset = b*G - * d = gn + ctx->scalar_offset + (2^COMB_BITS - 1)/2 (mod order) + * d = gn + ctx->scalar_offset (mod order) * R = comb(d, G/2) + ctx->ge_offset * * comb(d, G/2) function is then computed by summing + or - 2^(i-1)*G, for i=0..COMB_BITS-1, * depending on the value of the bits d[i] of the binary representation of scalar d. */ - /* Compute the scalar d = (gn + ctx->scalar_offset + (2^COMB_BITS - 1)/2). */ - secp256k1_ecmult_gen_scalar_diff(&d); - secp256k1_scalar_add(&d, &d, &ctx->scalar_offset); - secp256k1_scalar_add(&d, &d, gn); + /* Compute the scalar d = (gn + ctx->scalar_offset). */ + secp256k1_scalar_add(&d, &ctx->scalar_offset, gn); /* In secp256k1_ecmult_gen_prec_table we have precomputed sums of the * (2*d[i]-1) * 2^(i-1) * G points, for various combinations of i positions. @@ -245,14 +243,19 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 /* Setup blinding values for secp256k1_ecmult_gen. */ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const unsigned char *seed32) { secp256k1_scalar b; + secp256k1_scalar diff; secp256k1_gej gb; unsigned char nonce32[32]; secp256k1_rfc6979_hmac_sha256 rng; unsigned char keydata[64]; + + /* Compute the (2^COMB_BITS - 1)/2 term once. */ + secp256k1_ecmult_gen_scalar_diff(&diff); + if (seed32 == NULL) { /* When seed is NULL, reset the final point and blinding value. */ secp256k1_ge_neg(&ctx->ge_offset, &secp256k1_ge_const_g); - ctx->scalar_offset = secp256k1_scalar_one; + secp256k1_scalar_add(&ctx->scalar_offset, &secp256k1_scalar_one, &diff); return; } /* The prior blinding value (if not reset) is chained forward by including it in the hash. */ @@ -268,7 +271,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const /* TODO: reintroduce projective blinding. */ - /* For a random blinding value b, set ctx->scalar_offset=-b, ctx->ge_offset=bG. */ + /* For a random blinding value b, set scalar_offset=diff-b, ge_offset=bG */ secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); secp256k1_scalar_set_b32(&b, nonce32, NULL); /* The blinding value cannot be zero, as that would mean ge_offset = infinity, @@ -278,7 +281,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const memset(nonce32, 0, 32); secp256k1_ecmult_gen(ctx, &gb, &b); secp256k1_scalar_negate(&b, &b); - ctx->scalar_offset = b; + secp256k1_scalar_add(&ctx->scalar_offset, &b, &diff); secp256k1_ge_set_gej(&ctx->ge_offset, &gb); /* Clean up. */ From 15d0cca2a6920400ce061c397203dbb931fc8dcd Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sun, 26 Dec 2021 19:05:49 -0500 Subject: [PATCH 347/557] Optimization: first table lookup needs no point addition --- src/ecmult_gen_impl.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 9995c8775e..8e308cc80b 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -56,6 +56,7 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 secp256k1_fe neg; secp256k1_ge_storage adds; secp256k1_scalar d; + int first = 1; memset(&adds, 0, sizeof(adds)); @@ -177,7 +178,6 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 * secp256k1_ecmult_gen_prec_table[b][index] stores the table(b, m) entries. Index * is the relevant mask(b) bits of m packed together without gaps. */ - secp256k1_gej_set_infinity(r); /* Outer loop: iterate over comb_off from COMB_SPACING - 1 down to 0. */ comb_off = COMB_SPACING - 1; while (1) { @@ -221,7 +221,13 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 secp256k1_fe_cmov(&add.y, &neg, sign); /* Add the looked up and conditionally negated value to r. */ - secp256k1_gej_add_ge(r, r, &add); + if (EXPECT(first, 0)) { + /* If this is the first table lookup, we can skip addition. */ + secp256k1_gej_set_ge(r, &add); + first = 0; + } else { + secp256k1_gej_add_ge(r, r, &add); + } } /* Double the result, except in the last iteration. */ From 6247f485b6be461d5036608b9e8cd2f5adc912f1 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Sun, 26 Dec 2021 22:50:09 -0500 Subject: [PATCH 348/557] Optimization: avoid unnecessary doublings in precomputation --- src/ecmult_gen_compute_table_impl.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/src/ecmult_gen_compute_table_impl.h b/src/ecmult_gen_compute_table_impl.h index 5ad0b0b311..80c6af64d3 100644 --- a/src/ecmult_gen_compute_table_impl.h +++ b/src/ecmult_gen_compute_table_impl.h @@ -54,16 +54,18 @@ static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, cons secp256k1_gej_set_infinity(&sum); for (tooth = 0; tooth < teeth; ++tooth) { /* Here u = 2^((block*teeth + tooth)*spacing) * gen/2. */ - int bit_off; /* Make sum = sum(2^((block*teeth + t)*spacing), t=0..tooth) * gen/2. */ secp256k1_gej_add_var(&sum, &sum, &u, NULL); /* Make u = 2^((block*teeth + tooth)*spacing + 1) * gen/2. */ secp256k1_gej_double_var(&u, &u, NULL); /* Make ds[tooth] = u = 2^((block*teeth + tooth)*spacing + 1) * gen/2. */ ds[tooth] = u; - /* Make u = 2^((block*teeth + tooth + 1)*spacing) * gen/2. */ - for (bit_off = 1; bit_off < spacing; ++bit_off) { - secp256k1_gej_double_var(&u, &u, NULL); + /* Make u = 2^((block*teeth + tooth + 1)*spacing) * gen/2, unless at the end. */ + if (block + tooth != blocks + teeth - 2) { + int bit_off; + for (bit_off = 1; bit_off < spacing; ++bit_off) { + secp256k1_gej_double_var(&u, &u, NULL); + } } } /* Now u = 2^((block*teeth + teeth)*spacing) * gen/2 From 5005abee60ad03d2967c9aadf4e25d208c90d98a Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sun, 7 Apr 2024 10:02:02 -0400 Subject: [PATCH 349/557] Rename scalar_get_bits -> scalar_get_bits_limb32; return uint32_t --- src/ecmult_const_impl.h | 4 ++-- src/ecmult_gen_compute_table_impl.h | 2 +- src/ecmult_gen_impl.h | 2 +- src/ecmult_impl.h | 6 +++--- src/scalar.h | 4 ++-- src/scalar_4x64_impl.h | 6 +++--- src/scalar_8x32_impl.h | 6 +++--- src/scalar_low_impl.h | 6 +++--- src/tests.c | 2 +- 9 files changed, 19 insertions(+), 19 deletions(-) diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index 7dc4aac25d..0d78f7c3ce 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -214,8 +214,8 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons #ifdef VERIFY /* Verify that v1 and v2 are in range [0, 2^129-1]. */ for (i = 129; i < 256; ++i) { - VERIFY_CHECK(secp256k1_scalar_get_bits(&v1, i, 1) == 0); - VERIFY_CHECK(secp256k1_scalar_get_bits(&v2, i, 1) == 0); + VERIFY_CHECK(secp256k1_scalar_get_bits_limb32(&v1, i, 1) == 0); + VERIFY_CHECK(secp256k1_scalar_get_bits_limb32(&v2, i, 1) == 0); } #endif diff --git a/src/ecmult_gen_compute_table_impl.h b/src/ecmult_gen_compute_table_impl.h index 80c6af64d3..9c2962498a 100644 --- a/src/ecmult_gen_compute_table_impl.h +++ b/src/ecmult_gen_compute_table_impl.h @@ -34,7 +34,7 @@ static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, cons for (i = 255; i >= 0; --i) { /* Use a very simple multiplication ladder to avoid dependency on ecmult. */ secp256k1_gej_double_var(&u, &u, NULL); - if (secp256k1_scalar_get_bits(&half, i, 1)) { + if (secp256k1_scalar_get_bits_limb32(&half, i, 1)) { secp256k1_gej_add_ge_var(&u, &u, gen, NULL); } } diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 8e308cc80b..ae99de04a2 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -189,7 +189,7 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 * bits[tooth] = d[(block*COMB_TEETH + tooth)*COMB_SPACING + comb_off]. */ uint32_t bits = 0, sign, abs, index, tooth; for (tooth = 0; tooth < COMB_TEETH && bit_pos < 256; ++tooth) { - uint32_t bit = secp256k1_scalar_get_bits(&d, bit_pos, 1); + uint32_t bit = secp256k1_scalar_get_bits_limb32(&d, bit_pos, 1); bits |= bit << tooth; bit_pos += COMB_SPACING; } diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 2cf38399da..07d8477eb0 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -174,7 +174,7 @@ static int secp256k1_ecmult_wnaf(int *wnaf, int len, const secp256k1_scalar *a, memset(wnaf, 0, len * sizeof(wnaf[0])); s = *a; - if (secp256k1_scalar_get_bits(&s, 255, 1)) { + if (secp256k1_scalar_get_bits_limb32(&s, 255, 1)) { secp256k1_scalar_negate(&s, &s); sign = -1; } @@ -182,7 +182,7 @@ static int secp256k1_ecmult_wnaf(int *wnaf, int len, const secp256k1_scalar *a, while (bit < len) { int now; int word; - if (secp256k1_scalar_get_bits(&s, bit, 1) == (unsigned int)carry) { + if (secp256k1_scalar_get_bits_limb32(&s, bit, 1) == (unsigned int)carry) { bit++; continue; } @@ -209,7 +209,7 @@ static int secp256k1_ecmult_wnaf(int *wnaf, int len, const secp256k1_scalar *a, VERIFY_CHECK(carry == 0); while (verify_bit < 256) { - VERIFY_CHECK(secp256k1_scalar_get_bits(&s, verify_bit, 1) == 0); + VERIFY_CHECK(secp256k1_scalar_get_bits_limb32(&s, verify_bit, 1) == 0); verify_bit++; } } diff --git a/src/scalar.h b/src/scalar.h index 98b1287bb5..e5a10ca4f1 100644 --- a/src/scalar.h +++ b/src/scalar.h @@ -23,10 +23,10 @@ static void secp256k1_scalar_clear(secp256k1_scalar *r); /** Access bits from a scalar. All requested bits must belong to the same 32-bit limb. */ -static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count); +static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count); /** Access bits from a scalar. Not constant time in offset and count. */ -static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count); +static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count); /** Set a scalar from a big endian byte array. The scalar will be reduced modulo group order `n`. * In: bin: pointer to a 32-byte array. diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 82cd957f16..9fa2ca28cc 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -45,20 +45,20 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig SECP256K1_SCALAR_VERIFY(r); } -SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { +SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK((offset + count - 1) >> 6 == offset >> 6); return (a->d[offset >> 6] >> (offset & 0x3F)) & ((((uint64_t)1) << count) - 1); } -SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { +SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK(count < 32); VERIFY_CHECK(offset + count <= 256); if ((offset + count - 1) >> 6 == offset >> 6) { - return secp256k1_scalar_get_bits(a, offset, count); + return secp256k1_scalar_get_bits_limb32(a, offset, count); } else { VERIFY_CHECK((offset >> 6) + 1 < 4); return ((a->d[offset >> 6] >> (offset & 0x3F)) | (a->d[(offset >> 6) + 1] << (64 - (offset & 0x3F)))) & ((((uint64_t)1) << count) - 1); diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index 58ae51bc02..d49c464b98 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -62,20 +62,20 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig SECP256K1_SCALAR_VERIFY(r); } -SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { +SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK((offset + count - 1) >> 5 == offset >> 5); return (a->d[offset >> 5] >> (offset & 0x1F)) & ((1 << count) - 1); } -SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { +SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); VERIFY_CHECK(count < 32); VERIFY_CHECK(offset + count <= 256); if ((offset + count - 1) >> 5 == offset >> 5) { - return secp256k1_scalar_get_bits(a, offset, count); + return secp256k1_scalar_get_bits_limb32(a, offset, count); } else { VERIFY_CHECK((offset >> 5) + 1 < 8); return ((a->d[offset >> 5] >> (offset & 0x1F)) | (a->d[(offset >> 5) + 1] << (32 - (offset & 0x1F)))) & ((((uint32_t)1) << count) - 1); diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 7f53e626a5..2c176e836d 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -27,7 +27,7 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig SECP256K1_SCALAR_VERIFY(r); } -SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { +SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); if (offset < 32) @@ -36,10 +36,10 @@ SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_s return 0; } -SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { +SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); - return secp256k1_scalar_get_bits(a, offset, count); + return secp256k1_scalar_get_bits_limb32(a, offset, count); } SECP256K1_INLINE static int secp256k1_scalar_check_overflow(const secp256k1_scalar *a) { return *a >= EXHAUSTIVE_TEST_ORDER; } diff --git a/src/tests.c b/src/tests.c index e8b22a63db..b38409a5cd 100644 --- a/src/tests.c +++ b/src/tests.c @@ -2149,7 +2149,7 @@ static void scalar_test(void) { for (i = 0; i < 256; i += 4) { secp256k1_scalar t; int j; - secp256k1_scalar_set_int(&t, secp256k1_scalar_get_bits(&s, 256 - 4 - i, 4)); + secp256k1_scalar_set_int(&t, secp256k1_scalar_get_bits_limb32(&s, 256 - 4 - i, 4)); for (j = 0; j < 4; j++) { secp256k1_scalar_add(&n, &n, &n); } From e03dcc44b5fa9cac5aa6ebe855f825116b24791a Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 28 Dec 2021 18:13:04 -0500 Subject: [PATCH 350/557] Make secp256k1_scalar_get_bits support 32-bit reads The old code would trigger UB when count=32. --- src/scalar.h | 4 ++-- src/scalar_4x64_impl.h | 7 ++++--- src/scalar_8x32_impl.h | 7 ++++--- src/scalar_low_impl.h | 8 +++++--- 4 files changed, 15 insertions(+), 11 deletions(-) diff --git a/src/scalar.h b/src/scalar.h index e5a10ca4f1..70f49b1cf2 100644 --- a/src/scalar.h +++ b/src/scalar.h @@ -22,10 +22,10 @@ /** Clear a scalar to prevent the leak of sensitive data. */ static void secp256k1_scalar_clear(secp256k1_scalar *r); -/** Access bits from a scalar. All requested bits must belong to the same 32-bit limb. */ +/** Access bits (1 < count <= 32) from a scalar. All requested bits must belong to the same 32-bit limb. */ static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count); -/** Access bits from a scalar. Not constant time in offset and count. */ +/** Access bits (1 < count <= 32) from a scalar. offset + count must be < 256. Not constant time in offset and count. */ static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count); /** Set a scalar from a big endian byte array. The scalar will be reduced modulo group order `n`. diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 9fa2ca28cc..4aaec85b99 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -47,21 +47,22 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); + VERIFY_CHECK(count > 0 && count <= 32); VERIFY_CHECK((offset + count - 1) >> 6 == offset >> 6); - return (a->d[offset >> 6] >> (offset & 0x3F)) & ((((uint64_t)1) << count) - 1); + return (a->d[offset >> 6] >> (offset & 0x3F)) & (0xFFFFFFFF >> (32 - count)); } SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); - VERIFY_CHECK(count < 32); + VERIFY_CHECK(count > 0 && count <= 32); VERIFY_CHECK(offset + count <= 256); if ((offset + count - 1) >> 6 == offset >> 6) { return secp256k1_scalar_get_bits_limb32(a, offset, count); } else { VERIFY_CHECK((offset >> 6) + 1 < 4); - return ((a->d[offset >> 6] >> (offset & 0x3F)) | (a->d[(offset >> 6) + 1] << (64 - (offset & 0x3F)))) & ((((uint64_t)1) << count) - 1); + return ((a->d[offset >> 6] >> (offset & 0x3F)) | (a->d[(offset >> 6) + 1] << (64 - (offset & 0x3F)))) & (0xFFFFFFFF >> (32 - count)); } } diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index d49c464b98..c7d87b17d8 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -64,21 +64,22 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); + VERIFY_CHECK(count > 0 && count <= 32); VERIFY_CHECK((offset + count - 1) >> 5 == offset >> 5); - return (a->d[offset >> 5] >> (offset & 0x1F)) & ((1 << count) - 1); + return (a->d[offset >> 5] >> (offset & 0x1F)) & (0xFFFFFFFF >> (32 - count)); } SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); - VERIFY_CHECK(count < 32); + VERIFY_CHECK(count > 0 && count <= 32); VERIFY_CHECK(offset + count <= 256); if ((offset + count - 1) >> 5 == offset >> 5) { return secp256k1_scalar_get_bits_limb32(a, offset, count); } else { VERIFY_CHECK((offset >> 5) + 1 < 8); - return ((a->d[offset >> 5] >> (offset & 0x1F)) | (a->d[(offset >> 5) + 1] << (32 - (offset & 0x1F)))) & ((((uint32_t)1) << count) - 1); + return ((a->d[offset >> 5] >> (offset & 0x1F)) | (a->d[(offset >> 5) + 1] << (32 - (offset & 0x1F)))) & (0xFFFFFFFF >> (32 - count)); } } diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 2c176e836d..45d2f3e460 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -30,10 +30,12 @@ SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsig SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_limb32(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { SECP256K1_SCALAR_VERIFY(a); - if (offset < 32) - return ((*a >> offset) & ((((uint32_t)1) << count) - 1)); - else + VERIFY_CHECK(count > 0 && count <= 32); + if (offset < 32) { + return (*a >> offset) & (0xFFFFFFFF >> (32 - count)); + } else { return 0; + } } SECP256K1_INLINE static uint32_t secp256k1_scalar_get_bits_var(const secp256k1_scalar *a, unsigned int offset, unsigned int count) { From a0d32b597d4f9c8a20547dd21677716d4df8da54 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Tue, 28 Dec 2021 18:13:43 -0500 Subject: [PATCH 351/557] Optimization: use Nx32 representation for recoded bits The existing code needs to deal with the edge case that bit_pos >= 256, which would lead to an out-of-bounds read from secp256k1_scalar. Instead, recode the scalar into an array of uint32_t with enough zero padding at the end to alleviate the issue. This also simplifies the code, and is necessary for a security improvement in a follow-up commit. Original code by Peter Dettman, with modifications by Pieter Wuille. --- src/ecmult_gen_impl.h | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index ae99de04a2..8ca97a5391 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -56,7 +56,11 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 secp256k1_fe neg; secp256k1_ge_storage adds; secp256k1_scalar d; - int first = 1; + /* Array of uint32_t values large enough to store COMB_BITS bits. Only the bottom + * 8 are ever nonzero, but having the zero padding at the end if COMB_BITS>256 + * avoids the need to deal with out-of-bounds reads from a scalar. */ + uint32_t recoded[(COMB_BITS + 31) >> 5] = {0}; + int first = 1, i; memset(&adds, 0, sizeof(adds)); @@ -103,6 +107,11 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 /* Compute the scalar d = (gn + ctx->scalar_offset). */ secp256k1_scalar_add(&d, &ctx->scalar_offset, gn); + /* Convert to recoded array. */ + for (i = 0; i < 8; ++i) { + recoded[i] = secp256k1_scalar_get_bits_limb32(&d, 32 * i, 32); + } + secp256k1_scalar_clear(&d); /* In secp256k1_ecmult_gen_prec_table we have precomputed sums of the * (2*d[i]-1) * 2^(i-1) * G points, for various combinations of i positions. @@ -188,8 +197,8 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 /* Gather the mask(block)-selected bits of d into bits. They're packed: * bits[tooth] = d[(block*COMB_TEETH + tooth)*COMB_SPACING + comb_off]. */ uint32_t bits = 0, sign, abs, index, tooth; - for (tooth = 0; tooth < COMB_TEETH && bit_pos < 256; ++tooth) { - uint32_t bit = secp256k1_scalar_get_bits_limb32(&d, bit_pos, 1); + for (tooth = 0; tooth < COMB_TEETH; ++tooth) { + uint32_t bit = (recoded[bit_pos >> 5] >> (bit_pos & 0x1f)) & 1; bits |= bit << tooth; bit_pos += COMB_SPACING; } @@ -243,7 +252,7 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 secp256k1_fe_clear(&neg); secp256k1_ge_clear(&add); memset(&adds, 0, sizeof(adds)); - secp256k1_scalar_clear(&d); + memset(&recoded, 0, sizeof(recoded)); } /* Setup blinding values for secp256k1_ecmult_gen. */ From 07810d9abb8377e8f0056032bca51f8ca54ed18f Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Tue, 28 Dec 2021 18:25:04 -0500 Subject: [PATCH 352/557] Reduce side channels from single-bit reads Co-authored-by: Tim Ruffing --- src/ecmult_gen_impl.h | 27 +++++++++++++++++++++++++-- src/util.h | 12 ++++++++++++ 2 files changed, 37 insertions(+), 2 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 8ca97a5391..feb3ce13aa 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -197,9 +197,32 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 /* Gather the mask(block)-selected bits of d into bits. They're packed: * bits[tooth] = d[(block*COMB_TEETH + tooth)*COMB_SPACING + comb_off]. */ uint32_t bits = 0, sign, abs, index, tooth; + /* Instead of reading individual bits here to construct the bits variable, + * build up the result by xoring rotated reads together. In every iteration, + * one additional bit is made correct, starting at the bottom. The bits + * above that contain junk. This reduces leakage by avoiding computations + * on variables that can have only a low number of possible values (e.g., + * just two values when reading a single bit into a variable.) See: + * https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-alam.pdf + */ for (tooth = 0; tooth < COMB_TEETH; ++tooth) { - uint32_t bit = (recoded[bit_pos >> 5] >> (bit_pos & 0x1f)) & 1; - bits |= bit << tooth; + /* Construct bitdata s.t. the bottom bit is the bit we'd like to read. + * + * We could just set bitdata = recoded[bit_pos >> 5] >> (bit_pos & 0x1f) + * but this would simply discard the bits that fall off at the bottom, + * and thus, for example, bitdata could still have only two values if we + * happen to shift by exactly 31 positions. We use a rotation instead, + * which ensures that bitdata doesn't loose entropy. This relies on the + * rotation being atomic, i.e., the compiler emitting an actual rot + * instruction. */ + uint32_t bitdata = secp256k1_rotr32(recoded[bit_pos >> 5], bit_pos & 0x1f); + + /* Clear the bit at position tooth, but sssh, don't tell clang. */ + uint32_t volatile vmask = ~(1 << tooth); + bits &= vmask; + + /* Write the bit into position tooth (and junk into higher bits). */ + bits ^= bitdata << tooth; bit_pos += COMB_SPACING; } diff --git a/src/util.h b/src/util.h index b04a239dea..ca73752ccc 100644 --- a/src/util.h +++ b/src/util.h @@ -394,4 +394,16 @@ SECP256K1_INLINE static void secp256k1_write_be64(unsigned char* p, uint64_t x) p[0] = x >> 56; } +/* Rotate a uint32_t to the right. */ +SECP256K1_INLINE static uint32_t secp256k1_rotr32(const uint32_t x, const unsigned int by) { +#if defined(_MSC_VER) + return _rotr(x, by); /* needs */ +#else + /* Reduce rotation amount to avoid UB when shifting. */ + const unsigned int mask = CHAR_BIT * sizeof(x) - 1; + /* Turned into a rot instruction by GCC and clang. */ + return (x >> (by & mask)) | (x << ((-by) & mask)); +#endif +} + #endif /* SECP256K1_UTIL_H */ From 644e86de9a8f4d8faf4b6d9e2780157ab5a72314 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sun, 26 Dec 2021 22:45:30 -0500 Subject: [PATCH 353/557] Reintroduce projective blinding --- src/ecmult_gen.h | 4 ++++ src/ecmult_gen_impl.h | 12 +++++++++++- src/tests.c | 3 ++- 3 files changed, 17 insertions(+), 2 deletions(-) diff --git a/src/ecmult_gen.h b/src/ecmult_gen.h index ba0c818acd..7a640d9cf7 100644 --- a/src/ecmult_gen.h +++ b/src/ecmult_gen.h @@ -109,6 +109,10 @@ typedef struct { * ecmult_gen_impl.h for more details. */ secp256k1_scalar scalar_offset; secp256k1_ge ge_offset; + + /* Factor used for projective blinding. This value is used to rescale the Z + * coordinate of the first table lookup. */ + secp256k1_fe proj_blind; } secp256k1_ecmult_gen_context; static void secp256k1_ecmult_gen_context_build(secp256k1_ecmult_gen_context* ctx); diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index feb3ce13aa..7d2f4c8f19 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -27,6 +27,7 @@ static void secp256k1_ecmult_gen_context_clear(secp256k1_ecmult_gen_context *ctx ctx->built = 0; secp256k1_scalar_clear(&ctx->scalar_offset); secp256k1_ge_clear(&ctx->ge_offset); + secp256k1_fe_clear(&ctx->proj_blind); } /* Compute the scalar (2^COMB_BITS - 1) / 2, the difference between the gn argument to @@ -256,6 +257,8 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 if (EXPECT(first, 0)) { /* If this is the first table lookup, we can skip addition. */ secp256k1_gej_set_ge(r, &add); + /* Give the entry a random Z coordinate to blind intermediary results. */ + secp256k1_gej_rescale(r, &ctx->proj_blind); first = 0; } else { secp256k1_gej_add_ge(r, r, &add); @@ -283,6 +286,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const secp256k1_scalar b; secp256k1_scalar diff; secp256k1_gej gb; + secp256k1_fe f; unsigned char nonce32[32]; secp256k1_rfc6979_hmac_sha256 rng; unsigned char keydata[64]; @@ -294,6 +298,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const /* When seed is NULL, reset the final point and blinding value. */ secp256k1_ge_neg(&ctx->ge_offset, &secp256k1_ge_const_g); secp256k1_scalar_add(&ctx->scalar_offset, &secp256k1_scalar_one, &diff); + ctx->proj_blind = secp256k1_fe_one; return; } /* The prior blinding value (if not reset) is chained forward by including it in the hash. */ @@ -307,7 +312,11 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, 64); memset(keydata, 0, sizeof(keydata)); - /* TODO: reintroduce projective blinding. */ + /* Compute projective blinding factor (cannot be 0). */ + secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); + secp256k1_fe_set_b32_mod(&f, nonce32); + secp256k1_fe_cmov(&f, &secp256k1_fe_one, secp256k1_fe_normalizes_to_zero(&f)); + ctx->proj_blind = f; /* For a random blinding value b, set scalar_offset=diff-b, ge_offset=bG */ secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); @@ -325,6 +334,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const /* Clean up. */ secp256k1_scalar_clear(&b); secp256k1_gej_clear(&gb); + secp256k1_fe_clear(&f); } #endif /* SECP256K1_ECMULT_GEN_IMPL_H */ diff --git a/src/tests.c b/src/tests.c index b38409a5cd..862e3beb62 100644 --- a/src/tests.c +++ b/src/tests.c @@ -249,7 +249,8 @@ static void run_selftest_tests(void) { static int ecmult_gen_context_eq(const secp256k1_ecmult_gen_context *a, const secp256k1_ecmult_gen_context *b) { return a->built == b->built && secp256k1_scalar_eq(&a->scalar_offset, &b->scalar_offset) - && secp256k1_ge_eq_var(&a->ge_offset, &b->ge_offset); + && secp256k1_ge_eq_var(&a->ge_offset, &b->ge_offset) + && secp256k1_fe_equal(&a->proj_blind, &b->proj_blind); } static int context_eq(const secp256k1_context *a, const secp256k1_context *b) { From 39b2f2a32102b9319c8958715c1e708e95e06191 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Sat, 1 Jan 2022 13:35:53 -0500 Subject: [PATCH 354/557] Add test case for ecmult_gen recoded = {-1,0,1} --- src/tests.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/src/tests.c b/src/tests.c index 862e3beb62..ec9cd0e03d 100644 --- a/src/tests.c +++ b/src/tests.c @@ -5600,9 +5600,29 @@ static void test_ecmult_gen_blind_reset(void) { CHECK(secp256k1_ge_eq_var(&p1, &p2)); } +/* Verify that ecmult_gen for scalars gn for which gn + scalar_offset = {-1,0,1}. */ +static void test_ecmult_gen_edge_cases(void) { + int i; + secp256k1_gej res1, res2, res3; + secp256k1_scalar gn = secp256k1_scalar_one; /* gn = 1 */ + secp256k1_scalar_add(&gn, &gn, &CTX->ecmult_gen_ctx.scalar_offset); /* gn = 1 + scalar_offset */ + secp256k1_scalar_negate(&gn, &gn); /* gn = -1 - scalar_offset */ + + for (i = -1; i < 2; ++i) { + /* Run test with gn = i - scalar_offset (so that the ecmult_gen recoded value represents i). */ + secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &res1, &gn); + secp256k1_ecmult(&res2, NULL, &secp256k1_scalar_zero, &gn); + secp256k1_ecmult_const(&res3, &secp256k1_ge_const_g, &gn); + CHECK(secp256k1_gej_eq_var(&res1, &res2)); + CHECK(secp256k1_gej_eq_var(&res1, &res3)); + secp256k1_scalar_add(&gn, &gn, &secp256k1_scalar_one); + } +} + static void run_ecmult_gen_blind(void) { int i; test_ecmult_gen_blind_reset(); + test_ecmult_gen_edge_cases(); for (i = 0; i < 10; i++) { test_ecmult_gen_blind(); } From a043940253e1e44ea6ccd3e89a7fd807b56817ef Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 4 Jan 2022 18:46:22 -0500 Subject: [PATCH 355/557] Permit COMB_BITS < 256 for exhaustive tests --- src/ecmult_gen.h | 85 +++++++++++++++++------------ src/ecmult_gen_compute_table.h | 2 +- src/ecmult_gen_compute_table_impl.h | 4 +- src/ecmult_gen_impl.h | 2 +- src/precompute_ecmult_gen.c | 5 +- src/precomputed_ecmult_gen.c | 6 +- src/tests_exhaustive.c | 2 +- 7 files changed, 62 insertions(+), 44 deletions(-) diff --git a/src/ecmult_gen.h b/src/ecmult_gen.h index 7a640d9cf7..43dd10c38d 100644 --- a/src/ecmult_gen.h +++ b/src/ecmult_gen.h @@ -16,9 +16,12 @@ * - COMB_BLOCKS is the number of blocks the input is split into. Each * has a corresponding table. * - COMB_TEETH is the number of bits simultaneously covered by one table. + * - COMB_RANGE is the number of bits in supported scalars. For production + * purposes, only 256 is reasonable, but smaller numbers are supported for + * exhaustive test mode. * * The comb's spacing (COMB_SPACING), or the distance between the teeth, - * is defined as ceil(256 / (COMB_BLOCKS * COMB_TEETH)). Each block covers + * is defined as ceil(COMB_RANGE / (COMB_BLOCKS * COMB_TEETH)). Each block covers * COMB_SPACING * COMB_TEETH consecutive bits in the input. * * The size of the precomputed table is COMB_BLOCKS * (1 << (COMB_TEETH - 1)) @@ -36,55 +39,67 @@ * doesn't support infinities) */ # undef COMB_BLOCKS # undef COMB_TEETH -# if EXHAUSTIVE_TEST_ORDER > 32 -# define COMB_BLOCKS 52 -# define COMB_TEETH 5 -# elif EXHAUSTIVE_TEST_ORDER > 16 -# define COMB_BLOCKS 64 -# define COMB_TEETH 4 -# elif EXHAUSTIVE_TEST_ORDER > 8 -# define COMB_BLOCKS 86 -# define COMB_TEETH 3 -# elif EXHAUSTIVE_TEST_ORDER > 4 -# define COMB_BLOCKS 128 +# if EXHAUSTIVE_TEST_ORDER == 7 +# define COMB_RANGE 3 +# define COMB_BLOCKS 1 +# define COMB_TEETH 2 +# elif EXHAUSTIVE_TEST_ORDER == 13 +# define COMB_RANGE 4 +# define COMB_BLOCKS 1 # define COMB_TEETH 2 +# elif EXHAUSTIVE_TEST_ORDER == 199 +# define COMB_RANGE 8 +# define COMB_BLOCKS 2 +# define COMB_TEETH 3 # else -# define COMB_BLOCKS 256 -# define COMB_TEETH 1 +# error "Unknown exhaustive test order" +# endif +# if (COMB_RANGE >= 32) || ((EXHAUSTIVE_TEST_ORDER >> (COMB_RANGE - 1)) != 1) +# error "COMB_RANGE != ceil(log2(EXHAUSTIVE_TEST_ORDER+1))" # endif #else /* !defined(EXHAUSTIVE_TEST_ORDER) */ +# define COMB_RANGE 256 +#endif /* defined(EXHAUSTIVE_TEST_ORDER) */ + /* Use (11, 6) as default configuration, which results in a 22 kB table. */ -# ifndef COMB_BLOCKS -# define COMB_BLOCKS 11 -# ifdef DEBUG_CONFIG -# pragma message DEBUG_CONFIG_MSG("COMB_BLOCKS undefined, assuming default value") -# endif +#ifndef COMB_BLOCKS +# define COMB_BLOCKS 11 +# ifdef DEBUG_CONFIG +# pragma message DEBUG_CONFIG_MSG("COMB_BLOCKS undefined, assuming default value") # endif -# ifndef COMB_TEETH -# define COMB_TEETH 6 -# ifdef DEBUG_CONFIG -# pragma message DEBUG_CONFIG_MSG("COMB_TEETH undefined, assuming default value") -# endif +#endif +#ifndef COMB_TEETH +# define COMB_TEETH 6 +# ifdef DEBUG_CONFIG +# pragma message DEBUG_CONFIG_MSG("COMB_TEETH undefined, assuming default value") # endif -#endif /* defined(EXHAUSTIVE_TEST_ORDER) */ +#endif +/* Use ceil(COMB_RANGE / (COMB_BLOCKS * COMB_TEETH)) as COMB_SPACING. */ +#define COMB_SPACING CEIL_DIV(COMB_RANGE, COMB_BLOCKS * COMB_TEETH) /* Range checks on the parameters. */ + +/* The remaining COMB_* parameters are derived values, don't modify these. */ +/* - The number of bits covered by all the blocks; must be at least COMB_RANGE. */ +#define COMB_BITS (COMB_BLOCKS * COMB_TEETH * COMB_SPACING) +/* - The number of entries per table. */ +#define COMB_POINTS (1 << (COMB_TEETH - 1)) + +/* Sanity checks. */ #if !(1 <= COMB_BLOCKS && COMB_BLOCKS <= 256) # error "COMB_BLOCKS must be in the range [1, 256]" #endif #if !(1 <= COMB_TEETH && COMB_TEETH <= 8) # error "COMB_TEETH must be in the range [1, 8]" #endif +#if COMB_BITS < COMB_RANGE +# error "COMB_BLOCKS * COMB_TEETH * COMB_SPACING is too low" +#endif -/* The remaining COMB_* parameters are derived values, don't modify these. */ -/* - The distance between the teeth of each comb. */ -#define COMB_SPACING CEIL_DIV(256, COMB_BLOCKS * COMB_TEETH) -/* - The number of bits covered by all the blocks; must be at least 256. */ -#define COMB_BITS (COMB_BLOCKS * COMB_TEETH * COMB_SPACING) -/* - The number of entries per table. */ -#define COMB_POINTS (1 << (COMB_TEETH - 1)) - -/* Additional sanity checks. */ +/* These last 2 checks are not strictly required, but prevent gratuitously inefficient + * configurations. Note that they compare with 256 rather than COMB_RANGE, so they do + * permit somewhat excessive values for the exhaustive test case, where testing with + * suboptimal parameters may be desirable. */ #if (COMB_BLOCKS - 1) * COMB_TEETH * COMB_SPACING >= 256 # error "COMB_BLOCKS can be reduced" #endif @@ -93,8 +108,10 @@ #endif #ifdef DEBUG_CONFIG +# pragma message DEBUG_CONFIG_DEF(COMB_RANGE) # pragma message DEBUG_CONFIG_DEF(COMB_BLOCKS) # pragma message DEBUG_CONFIG_DEF(COMB_TEETH) +# pragma message DEBUG_CONFIG_DEF(COMB_SPACING) #endif typedef struct { diff --git a/src/ecmult_gen_compute_table.h b/src/ecmult_gen_compute_table.h index cd4f9233bd..bd41803a87 100644 --- a/src/ecmult_gen_compute_table.h +++ b/src/ecmult_gen_compute_table.h @@ -9,6 +9,6 @@ #include "ecmult_gen.h" -static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int blocks, int teeth); +static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int blocks, int teeth, int spacing); #endif /* SECP256K1_ECMULT_GEN_COMPUTE_TABLE_H */ diff --git a/src/ecmult_gen_compute_table_impl.h b/src/ecmult_gen_compute_table_impl.h index 9c2962498a..6aa8d84082 100644 --- a/src/ecmult_gen_compute_table_impl.h +++ b/src/ecmult_gen_compute_table_impl.h @@ -14,10 +14,9 @@ #include "ecmult_gen.h" #include "util.h" -static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int blocks, int teeth) { +static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, const secp256k1_ge* gen, int blocks, int teeth, int spacing) { size_t points = ((size_t)1) << (teeth - 1); size_t points_total = points * blocks; - int spacing = (256 + blocks * teeth - 1) / (blocks * teeth); secp256k1_ge* prec = checked_malloc(&default_error_callback, points_total * sizeof(*prec)); secp256k1_gej* ds = checked_malloc(&default_error_callback, teeth * sizeof(*ds)); secp256k1_gej* vs = checked_malloc(&default_error_callback, points_total * sizeof(*vs)); @@ -95,6 +94,7 @@ static void secp256k1_ecmult_gen_compute_table(secp256k1_ge_storage* table, cons for (block = 0; block < blocks; ++block) { size_t index; for (index = 0; index < points; ++index) { + VERIFY_CHECK(!secp256k1_ge_is_infinity(&prec[block * points + index])); secp256k1_ge_to_storage(&table[block * points + index], &prec[block * points + index]); } } diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 7d2f4c8f19..2fbf623ca3 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -109,7 +109,7 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 /* Compute the scalar d = (gn + ctx->scalar_offset). */ secp256k1_scalar_add(&d, &ctx->scalar_offset, gn); /* Convert to recoded array. */ - for (i = 0; i < 8; ++i) { + for (i = 0; i < 8 && i < ((COMB_BITS + 31) >> 5); ++i) { recoded[i] = secp256k1_scalar_get_bits_limb32(&d, 32 * i, 32); } secp256k1_scalar_clear(&d); diff --git a/src/precompute_ecmult_gen.c b/src/precompute_ecmult_gen.c index 25ab445bc0..4d153a6574 100644 --- a/src/precompute_ecmult_gen.c +++ b/src/precompute_ecmult_gen.c @@ -24,14 +24,15 @@ static const int CONFIGS[][2] = { }; static void print_table(FILE* fp, int blocks, int teeth) { + int spacing = CEIL_DIV(256, blocks * teeth); size_t points = ((size_t)1) << (teeth - 1); int outer; size_t inner; secp256k1_ge_storage* table = checked_malloc(&default_error_callback, blocks * points * sizeof(secp256k1_ge_storage)); - secp256k1_ecmult_gen_compute_table(table, &secp256k1_ge_const_g, blocks, teeth); + secp256k1_ecmult_gen_compute_table(table, &secp256k1_ge_const_g, blocks, teeth, spacing); - fprintf(fp, "#elif (COMB_BLOCKS == %d) && (COMB_TEETH == %d)\n", blocks, teeth); + fprintf(fp, "#elif (COMB_BLOCKS == %d) && (COMB_TEETH == %d) && (COMB_SPACING == %d)\n", blocks, teeth, spacing); for (outer = 0; outer != blocks; outer++) { fprintf(fp,"{"); for (inner = 0; inner != points; inner++) { diff --git a/src/precomputed_ecmult_gen.c b/src/precomputed_ecmult_gen.c index 95c18bcb95..248fb077e5 100644 --- a/src/precomputed_ecmult_gen.c +++ b/src/precomputed_ecmult_gen.c @@ -9,7 +9,7 @@ #define S(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) SECP256K1_GE_STORAGE_CONST(0x##a##u,0x##b##u,0x##c##u,0x##d##u,0x##e##u,0x##f##u,0x##g##u,0x##h##u,0x##i##u,0x##j##u,0x##k##u,0x##l##u,0x##m##u,0x##n##u,0x##o##u,0x##p##u) const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS] = { #if 0 -#elif (COMB_BLOCKS == 2) && (COMB_TEETH == 5) +#elif (COMB_BLOCKS == 2) && (COMB_TEETH == 5) && (COMB_SPACING == 26) {S(7081b567,8cb87d01,99c9c76e,d1e0a5e0,1d784be9,27f6b135,161e0fd0,3f39b473,ad5222ac,f062cb39,21b234a7,15b626ae,f780b307,9b5122d1,53210f42,d9369242), S(228af17e,df90d1cc,a40173e9,478fa445,9780dacd,c3f15b90,fda5d00e,1faa1b51,8ff47c4d,a4ba636a,f656da9,12a81f79,6252496d,1e519886,b2c2b073,25be2b4a), S(b515ebe0,f48fb34e,9e01824c,d90553af,db116579,96667847,5ebaa700,242fd722,4cf08191,510fbf0,51f9e19a,198f11f6,ea31268c,2a6d384c,60557250,f0553c50), @@ -42,7 +42,7 @@ S(f7738800,b7fdf237,dc7f03fc,43724011,8b53aea4,4d7953d4,276f3b4d,bf5c0ff8,c1de79 S(5cb07874,ac4ffb86,2da619be,4c8fa38b,e8b261ec,3ec73a12,cd4cf8fc,4f8d5dae,549d1896,4931dabf,ba4553a2,461f2660,87733454,ea8eec6b,f671e3de,60c70340), S(5cc85d41,7b2ae9ac,dedb1b44,ce78d8a7,8f56b878,1a4b3af6,635a55c1,fead3be7,66a48c79,301e57d4,54cc8644,d2e778a8,45d85762,2c10eb98,d77eb873,e58bbeca), S(f27211c9,a067b01c,7fe7fbf7,7b5d9b0,eb0f2475,9d541457,6eb24ba4,19fd3db8,e26d28eb,89f7b518,e9ae0b88,fadbfb9b,641d3a44,c59c6f93,ec28a541,486e041e)} -#elif (COMB_BLOCKS == 11) && (COMB_TEETH == 6) +#elif (COMB_BLOCKS == 11) && (COMB_TEETH == 6) && (COMB_SPACING == 4) {S(629bee58,a391595f,eb20c534,4933937a,cdb2eba1,86d49f8b,845c1b5f,4ca87182,8dae4162,73c6c068,2e2aede4,76efa86b,7612c07e,f72070d0,dc4486f1,47e95085), S(6fd5e13c,a94b874b,28cd574b,726efdbf,143ab108,1089b846,7b5b2ebe,6c6a3c8f,4a4db306,52c9772a,868b2859,57c5a005,d83f6afa,6e65d87c,700da998,ce651396), S(609b6576,191514f4,83f5b428,500cfbaf,96871b8b,3348fe5c,1a131768,bb266b6f,90abb9c1,1bf184d2,8dbc424a,bbf74eb8,de4e0582,2ea5dd93,7d1e8b30,e5f695e7), @@ -395,7 +395,7 @@ S(96ca6bb4,bf74c748,75703386,ae02dc29,13329d9e,a5395892,df1c6f57,4a84fa4a,fcb510 S(36a066ae,694f2645,25cba884,956ebd46,ae568acf,11664965,63cee00d,a32f2199,5d1e975a,856ebd1a,cb1fe254,101e89ab,ea089e8a,b38bbd0f,1100e914,709fd965), S(4922879f,800234c9,63f4b572,d236843,4c4da5c8,ff741982,c3d1e341,841d1309,9b259470,24b5f4cb,97c68d18,f7f8dfca,1e57f7de,63208765,2ce15770,98f35494), S(ee27e2b,acf95f6d,dbb5ebae,bbf181bb,43322a3d,6db87e78,14e57a3d,41b581e0,3d6a18a,daf69ae4,88ecc9d8,7d6b1bf2,c8d65544,3f4b45b4,c5a0ac51,7b1dc3ca)} -#elif (COMB_BLOCKS == 43) && (COMB_TEETH == 6) +#elif (COMB_BLOCKS == 43) && (COMB_TEETH == 6) && (COMB_SPACING == 1) {S(e3adcb1a,fe947e6e,7cc4f5a2,df78310a,b235e2c3,bcd75eba,1904de80,c8814c50,e0b27ead,c4bbb9d2,37dad580,6e366674,4a9f9c3d,e024f2bd,1edb11d2,fafc0a22), S(612c2ec6,f0e9c4ec,c2200d23,ddca77eb,d003be35,61e52b1,890bf846,3bb53ea5,9e944d7b,dfc7a952,c1c5ee15,485d7199,dda19551,2d729628,c215a9e0,285f656a), S(42053dc0,9f90a7f7,86feca60,d68a5c3c,789e44d2,3479aa13,2d1a427c,621373a3,b338f891,f3930ec7,738669bb,3a29ae2d,637be08a,954f2a8c,acb661af,a660bd22), diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index a17d32de57..5843b3e1f5 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -389,7 +389,7 @@ int main(int argc, char** argv) { } /* Recreate the ecmult{,_gen} tables using the right generator (as selected via EXHAUSTIVE_TEST_ORDER) */ - secp256k1_ecmult_gen_compute_table(&secp256k1_ecmult_gen_prec_table[0][0], &secp256k1_ge_const_g, COMB_BLOCKS, COMB_TEETH); + secp256k1_ecmult_gen_compute_table(&secp256k1_ecmult_gen_prec_table[0][0], &secp256k1_ge_const_g, COMB_BLOCKS, COMB_TEETH, COMB_SPACING); secp256k1_ecmult_compute_two_tables(secp256k1_pre_g, secp256k1_pre_g_128, WINDOW_G, &secp256k1_ge_const_g); while (count--) { From 4c341f89ab704205a89b5c5d404ed60f381f7c48 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 28 Dec 2022 16:50:07 -0500 Subject: [PATCH 356/557] Add changelog entry for SDMC --- CHANGELOG.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 04ac9b7e5a..36f53db06a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Changed + - The implementation of the point multiplication algorithm used for signing and public key generation was changed, resulting in improved performance for those operations. + - The related configure option `--ecmult-gen-precision` was replaced with `--ecmult-gen-kb` (`ECMULT_GEN_KB` for CMake). + - This changes the supported precomputed table sizes for these operations. The new supported sizes are 2 KiB, 22 KiB, or 86 KiB (while the old supported sizes were 32 KiB, 64 KiB, or 512 KiB). + ## [0.4.1] - 2023-12-21 #### Changed From 7d2591ce12d8a9b85f210cf9d678e91cee125ee9 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 17 Apr 2024 17:33:51 +0000 Subject: [PATCH 357/557] Add secp256k1_pubkey_sort Co-authored-by: Tim Ruffing Co-authored-by: Russell O'Connor --- CHANGELOG.md | 3 + Makefile.am | 2 + include/secp256k1.h | 14 +++ src/hsort.h | 33 +++++++ src/hsort_impl.h | 125 ++++++++++++++++++++++++ src/secp256k1.c | 29 ++++++ src/tests.c | 231 ++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 437 insertions(+) create mode 100644 src/hsort.h create mode 100644 src/hsort_impl.h diff --git a/CHANGELOG.md b/CHANGELOG.md index 36f53db06a..98252da5a8 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Added + - New function `secp256k1_ec_pubkey_sort` that sorts public keys using lexicographic (of compressed serialization) order. + #### Changed - The implementation of the point multiplication algorithm used for signing and public key generation was changed, resulting in improved performance for those operations. - The related configure option `--ecmult-gen-precision` was replaced with `--ecmult-gen-kb` (`ECMULT_GEN_KB` for CMake). diff --git a/Makefile.am b/Makefile.am index 5498617915..322e44eaab 100644 --- a/Makefile.am +++ b/Makefile.am @@ -64,6 +64,8 @@ noinst_HEADERS += src/field.h noinst_HEADERS += src/field_impl.h noinst_HEADERS += src/bench.h noinst_HEADERS += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h +noinst_HEADERS += src/hsort.h +noinst_HEADERS += src/hsort_impl.h noinst_HEADERS += contrib/lax_der_parsing.h noinst_HEADERS += contrib/lax_der_parsing.c noinst_HEADERS += contrib/lax_der_privatekey_parsing.h diff --git a/include/secp256k1.h b/include/secp256k1.h index f4053f2a93..cfbdd528c2 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -474,6 +474,20 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_cmp( const secp256k1_pubkey *pubkey2 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); +/** Sort public keys using lexicographic (of compressed serialization) order + * + * Returns: 0 if the arguments are invalid. 1 otherwise. + * + * Args: ctx: pointer to a context object + * In: pubkeys: array of pointers to pubkeys to sort + * n_pubkeys: number of elements in the pubkeys array + */ +SECP256K1_API int secp256k1_ec_pubkey_sort( + const secp256k1_context *ctx, + const secp256k1_pubkey **pubkeys, + size_t n_pubkeys +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); + /** Parse an ECDSA signature in compact (64 bytes) format. * * Returns: 1 when the signature could be parsed, 0 otherwise. diff --git a/src/hsort.h b/src/hsort.h new file mode 100644 index 0000000000..d54995caad --- /dev/null +++ b/src/hsort.h @@ -0,0 +1,33 @@ +/*********************************************************************** + * Copyright (c) 2021 Russell O'Connor, Jonas Nick * + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_HSORT_H +#define SECP256K1_HSORT_H + +#include +#include + +/* In-place, iterative heapsort with an interface matching glibc's qsort_r. This + * is preferred over standard library implementations because they generally + * make no guarantee about being fast for malicious inputs. + * Remember that heapsort is unstable. + * + * In/Out: ptr: pointer to the array to sort. The contents of the array are + * sorted in ascending order according to the comparison function. + * In: count: number of elements in the array. + * size: size in bytes of each element. + * cmp: pointer to a comparison function that is called with two + * arguments that point to the objects being compared. The cmp_data + * argument of secp256k1_hsort is passed as third argument. The + * function must return an integer less than, equal to, or greater + * than zero if the first argument is considered to be respectively + * less than, equal to, or greater than the second. + * cmp_data: pointer passed as third argument to cmp. + */ +static void secp256k1_hsort(void *ptr, size_t count, size_t size, + int (*cmp)(const void *, const void *, void *), + void *cmp_data); +#endif diff --git a/src/hsort_impl.h b/src/hsort_impl.h new file mode 100644 index 0000000000..1c674ff1c4 --- /dev/null +++ b/src/hsort_impl.h @@ -0,0 +1,125 @@ +/*********************************************************************** + * Copyright (c) 2021 Russell O'Connor, Jonas Nick * + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_HSORT_IMPL_H +#define SECP256K1_HSORT_IMPL_H + +#include "hsort.h" + +/* An array is a heap when, for all non-zero indexes i, the element at index i + * compares as less than or equal to the element at index parent(i) = (i-1)/2. + */ + +static SECP256K1_INLINE size_t secp256k1_heap_child1(size_t i) { + VERIFY_CHECK(i <= (SIZE_MAX - 1)/2); + return 2*i + 1; +} + +static SECP256K1_INLINE size_t secp256k1_heap_child2(size_t i) { + VERIFY_CHECK(i <= SIZE_MAX/2 - 1); + return secp256k1_heap_child1(i)+1; +} + +static SECP256K1_INLINE void secp256k1_heap_swap64(unsigned char *a, unsigned char *b, size_t len) { + unsigned char tmp[64]; + VERIFY_CHECK(len <= 64); + memcpy(tmp, a, len); + memmove(a, b, len); + memcpy(b, tmp, len); +} + +static SECP256K1_INLINE void secp256k1_heap_swap(unsigned char *arr, size_t i, size_t j, size_t stride) { + unsigned char *a = arr + i*stride; + unsigned char *b = arr + j*stride; + size_t len = stride; + while (64 < len) { + secp256k1_heap_swap64(a + (len - 64), b + (len - 64), 64); + len -= 64; + } + secp256k1_heap_swap64(a, b, len); +} + +/* This function accepts an array arr containing heap_size elements, each of + * size stride. The elements in the array at indices >i satisfy the max-heap + * property, i.e., for any element at index j (where j > i), all of its children + * are smaller than the element itself. The purpose of the function is to update + * the array so that all elements at indices >=i satisfy the max-heap + * property. */ +static SECP256K1_INLINE void secp256k1_heap_down(unsigned char *arr, size_t i, size_t heap_size, size_t stride, + int (*cmp)(const void *, const void *, void *), void *cmp_data) { + while (i < heap_size/2) { + VERIFY_CHECK(i <= SIZE_MAX/2 - 1); + /* Proof: + * i < heap_size/2 + * i + 1 <= heap_size/2 + * 2*i + 2 <= heap_size <= SIZE_MAX + * 2*i <= SIZE_MAX - 2 + */ + + VERIFY_CHECK(secp256k1_heap_child1(i) < heap_size); + /* Proof: + * i < heap_size/2 + * i + 1 <= heap_size/2 + * 2*i + 2 <= heap_size + * 2*i + 1 < heap_size + * child1(i) < heap_size + */ + + /* Let [x] be notation for the contents at arr[x*stride]. + * + * If [child1(i)] > [i] and [child2(i)] > [i], + * swap [i] with the larger child to ensure the new parent is larger + * than both children. When [child1(i)] == [child2(i)], swap [i] with + * [child2(i)]. + * Else if [child1(i)] > [i], swap [i] with [child1(i)]. + * Else if [child2(i)] > [i], swap [i] with [child2(i)]. + */ + if (secp256k1_heap_child2(i) < heap_size + && 0 <= cmp(arr + secp256k1_heap_child2(i)*stride, arr + secp256k1_heap_child1(i)*stride, cmp_data)) { + if (0 < cmp(arr + secp256k1_heap_child2(i)*stride, arr + i*stride, cmp_data)) { + secp256k1_heap_swap(arr, i, secp256k1_heap_child2(i), stride); + i = secp256k1_heap_child2(i); + } else { + /* At this point we have [child2(i)] >= [child1(i)] and we have + * [child2(i)] <= [i], and thus [child1(i)] <= [i] which means + * that the next comparison can be skipped. */ + return; + } + } else if (0 < cmp(arr + secp256k1_heap_child1(i)*stride, arr + i*stride, cmp_data)) { + secp256k1_heap_swap(arr, i, secp256k1_heap_child1(i), stride); + i = secp256k1_heap_child1(i); + } else { + return; + } + } + /* heap_size/2 <= i + * heap_size/2 < i + 1 + * heap_size < 2*i + 2 + * heap_size <= 2*i + 1 + * heap_size <= child1(i) + * Thus child1(i) and child2(i) are now out of bounds and we are at a leaf. + */ +} + +/* In-place heap sort. */ +static void secp256k1_hsort(void *ptr, size_t count, size_t size, + int (*cmp)(const void *, const void *, void *), + void *cmp_data) { + size_t i; + + for (i = count/2; 0 < i; --i) { + secp256k1_heap_down(ptr, i-1, count, size, cmp, cmp_data); + } + for (i = count; 1 < i; --i) { + /* Extract the largest value from the heap */ + secp256k1_heap_swap(ptr, 0, i-1, size); + + /* Repair the heap condition */ + secp256k1_heap_down(ptr, 0, i-1, size, cmp, cmp_data); + } +} + +#endif diff --git a/src/secp256k1.c b/src/secp256k1.c index 15a5eede67..7a32769408 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -36,6 +36,7 @@ #include "int128_impl.h" #include "scratch_impl.h" #include "selftest.h" +#include "hsort_impl.h" #ifdef SECP256K1_NO_BUILD # error "secp256k1.h processed without SECP256K1_BUILD defined while building secp256k1.c" @@ -325,6 +326,34 @@ int secp256k1_ec_pubkey_cmp(const secp256k1_context* ctx, const secp256k1_pubkey return secp256k1_memcmp_var(out[0], out[1], sizeof(out[0])); } +static int secp256k1_ec_pubkey_sort_cmp(const void* pk1, const void* pk2, void *ctx) { + return secp256k1_ec_pubkey_cmp((secp256k1_context *)ctx, + *(secp256k1_pubkey **)pk1, + *(secp256k1_pubkey **)pk2); +} + +int secp256k1_ec_pubkey_sort(const secp256k1_context* ctx, const secp256k1_pubkey **pubkeys, size_t n_pubkeys) { + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(pubkeys != NULL); + + /* Suppress wrong warning (fixed in MSVC 19.33) */ + #if defined(_MSC_VER) && (_MSC_VER < 1933) + #pragma warning(push) + #pragma warning(disable: 4090) + #endif + + /* Casting away const is fine because neither secp256k1_hsort nor + * secp256k1_ec_pubkey_sort_cmp modify the data pointed to by the cmp_data + * argument. */ + secp256k1_hsort(pubkeys, n_pubkeys, sizeof(*pubkeys), secp256k1_ec_pubkey_sort_cmp, (void *)ctx); + + #if defined(_MSC_VER) && (_MSC_VER < 1933) + #pragma warning(pop) + #endif + + return 1; +} + static void secp256k1_ecdsa_signature_load(const secp256k1_context* ctx, secp256k1_scalar* r, secp256k1_scalar* s, const secp256k1_ecdsa_signature* sig) { (void)ctx; if (sizeof(secp256k1_scalar) == 32) { diff --git a/src/tests.c b/src/tests.c index ec9cd0e03d..2eb3fbfdce 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3676,6 +3676,78 @@ static void run_inverse_tests(void) } } +/***** HSORT TESTS *****/ + +static void test_heap_swap(void) { + unsigned char a[600]; + unsigned char e[sizeof(a)]; + memset(a, 21, 200); + memset(a + 200, 99, 200); + memset(a + 400, 42, 200); + memset(e, 42, 200); + memset(e + 200, 99, 200); + memset(e + 400, 21, 200); + secp256k1_heap_swap(a, 0, 2, 200); + CHECK(secp256k1_memcmp_var(a, e, sizeof(a)) == 0); +} + +static void test_hsort_is_sorted(unsigned char *elements, size_t n, size_t len) { + size_t i; + for (i = 1; i < n; i++) { + CHECK(secp256k1_memcmp_var(&elements[(i-1) * len], &elements[i * len], len) <= 0); + } +} + +struct test_hsort_cmp_data { + size_t counter; + size_t element_len; +}; + + +static int test_hsort_cmp(const void *ele1, const void *ele2, void *data) { + struct test_hsort_cmp_data *d = (struct test_hsort_cmp_data *) data; + d->counter += 1; + return secp256k1_memcmp_var((unsigned char *)ele1, (unsigned char *)ele2, d->element_len); +} + +#define NUM 65 +#define MAX_ELEMENT_LEN 65 +static void test_hsort(size_t element_len) { + unsigned char elements[NUM * MAX_ELEMENT_LEN] = { 0 }; + struct test_hsort_cmp_data data; + int i; + + VERIFY_CHECK(element_len <= MAX_ELEMENT_LEN); + data.counter = 0; + data.element_len = element_len; + + secp256k1_hsort(elements, 0, element_len, test_hsort_cmp, &data); + CHECK(data.counter == 0); + secp256k1_hsort(elements, 1, element_len, test_hsort_cmp, &data); + CHECK(data.counter == 0); + secp256k1_hsort(elements, NUM, element_len, test_hsort_cmp, &data); + CHECK(data.counter >= NUM - 1); + test_hsort_is_sorted(elements, NUM, element_len); + + /* Test hsort with array of random length n */ + for (i = 0; i < COUNT; i++) { + int n = secp256k1_testrand_int(NUM); + secp256k1_testrand_bytes_test(elements, n*element_len); + secp256k1_hsort(elements, n, element_len, test_hsort_cmp, &data); + test_hsort_is_sorted(elements, n, element_len); + } +} +#undef NUM +#undef MAX_ELEMENT_LEN + + +static void run_hsort_tests(void) { + test_heap_swap(); + test_hsort(1); + test_hsort(64); + test_hsort(65); +} + /***** GROUP TESTS *****/ /* This compares jacobian points including their Z, not just their geometric meaning. */ @@ -6629,6 +6701,161 @@ static void run_pubkey_comparison(void) { CHECK(secp256k1_ec_pubkey_cmp(CTX, &pk2, &pk1) > 0); } +static void test_sort_helper(secp256k1_pubkey *pk, size_t *pk_order, size_t n_pk) { + size_t i; + const secp256k1_pubkey *pk_test[5]; + + for (i = 0; i < n_pk; i++) { + pk_test[i] = &pk[pk_order[i]]; + } + secp256k1_ec_pubkey_sort(CTX, pk_test, n_pk); + for (i = 0; i < n_pk; i++) { + CHECK(secp256k1_memcmp_var(pk_test[i], &pk[i], sizeof(*pk_test[i])) == 0); + } +} + +static void permute(size_t *arr, size_t n) { + size_t i; + for (i = n - 1; i >= 1; i--) { + size_t tmp, j; + j = secp256k1_testrand_int(i + 1); + tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + } +} + +static void rand_pk(secp256k1_pubkey *pk) { + unsigned char seckey[32]; + secp256k1_keypair keypair; + secp256k1_testrand256(seckey); + CHECK(secp256k1_keypair_create(CTX, &keypair, seckey) == 1); + CHECK(secp256k1_keypair_pub(CTX, pk, &keypair) == 1); +} + +static void test_sort_api(void) { + secp256k1_pubkey pks[2]; + const secp256k1_pubkey *pks_ptr[2]; + + pks_ptr[0] = &pks[0]; + pks_ptr[1] = &pks[1]; + + rand_pk(&pks[0]); + rand_pk(&pks[1]); + + CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, 2) == 1); + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_sort(CTX, NULL, 2)); + CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, 0) == 1); + /* Test illegal public keys */ + memset(&pks[0], 0, sizeof(pks[0])); + CHECK_ILLEGAL_VOID(CTX, CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, 2) == 1)); + memset(&pks[1], 0, sizeof(pks[1])); + { + int32_t ecount = 0; + secp256k1_context_set_illegal_callback(CTX, counting_callback_fn, &ecount); + CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, 2) == 1); + CHECK(ecount == 2); + secp256k1_context_set_illegal_callback(CTX, NULL, NULL); + } +} + +static void test_sort(void) { + secp256k1_pubkey pk[5]; + unsigned char pk_ser[5][33] = { + { 0x02, 0x08 }, + { 0x02, 0x0b }, + { 0x02, 0x0c }, + { 0x03, 0x05 }, + { 0x03, 0x0a }, + }; + int i; + size_t pk_order[5] = { 0, 1, 2, 3, 4 }; + + for (i = 0; i < 5; i++) { + CHECK(secp256k1_ec_pubkey_parse(CTX, &pk[i], pk_ser[i], sizeof(pk_ser[i]))); + } + + permute(pk_order, 1); + test_sort_helper(pk, pk_order, 1); + permute(pk_order, 2); + test_sort_helper(pk, pk_order, 2); + permute(pk_order, 3); + test_sort_helper(pk, pk_order, 3); + for (i = 0; i < COUNT; i++) { + permute(pk_order, 4); + test_sort_helper(pk, pk_order, 4); + } + for (i = 0; i < COUNT; i++) { + permute(pk_order, 5); + test_sort_helper(pk, pk_order, 5); + } + /* Check that sorting also works for random pubkeys */ + for (i = 0; i < COUNT; i++) { + int j; + const secp256k1_pubkey *pk_ptr[5]; + for (j = 0; j < 5; j++) { + rand_pk(&pk[j]); + pk_ptr[j] = &pk[j]; + } + secp256k1_ec_pubkey_sort(CTX, pk_ptr, 5); + for (j = 1; j < 5; j++) { + CHECK(secp256k1_ec_pubkey_sort_cmp(&pk_ptr[j - 1], &pk_ptr[j], CTX) <= 0); + } + } +} + +/* Test vectors from BIP-MuSig2 */ +static void test_sort_vectors(void) { + enum { N_PUBKEYS = 6 }; + unsigned char pk_ser[N_PUBKEYS][33] = { + { 0x02, 0xDD, 0x30, 0x8A, 0xFE, 0xC5, 0x77, 0x7E, 0x13, 0x12, 0x1F, + 0xA7, 0x2B, 0x9C, 0xC1, 0xB7, 0xCC, 0x01, 0x39, 0x71, 0x53, 0x09, + 0xB0, 0x86, 0xC9, 0x60, 0xE1, 0x8F, 0xD9, 0x69, 0x77, 0x4E, 0xB8 }, + { 0x02, 0xF9, 0x30, 0x8A, 0x01, 0x92, 0x58, 0xC3, 0x10, 0x49, 0x34, + 0x4F, 0x85, 0xF8, 0x9D, 0x52, 0x29, 0xB5, 0x31, 0xC8, 0x45, 0x83, + 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }, + { 0x03, 0xDF, 0xF1, 0xD7, 0x7F, 0x2A, 0x67, 0x1C, 0x5F, 0x36, 0x18, + 0x37, 0x26, 0xDB, 0x23, 0x41, 0xBE, 0x58, 0xFE, 0xAE, 0x1D, 0xA2, + 0xDE, 0xCE, 0xD8, 0x43, 0x24, 0x0F, 0x7B, 0x50, 0x2B, 0xA6, 0x59 }, + { 0x02, 0x35, 0x90, 0xA9, 0x4E, 0x76, 0x8F, 0x8E, 0x18, 0x15, 0xC2, + 0xF2, 0x4B, 0x4D, 0x80, 0xA8, 0xE3, 0x14, 0x93, 0x16, 0xC3, 0x51, + 0x8C, 0xE7, 0xB7, 0xAD, 0x33, 0x83, 0x68, 0xD0, 0x38, 0xCA, 0x66 }, + { 0x02, 0xDD, 0x30, 0x8A, 0xFE, 0xC5, 0x77, 0x7E, 0x13, 0x12, 0x1F, + 0xA7, 0x2B, 0x9C, 0xC1, 0xB7, 0xCC, 0x01, 0x39, 0x71, 0x53, 0x09, + 0xB0, 0x86, 0xC9, 0x60, 0xE1, 0x8F, 0xD9, 0x69, 0x77, 0x4E, 0xFF }, + { 0x02, 0xDD, 0x30, 0x8A, 0xFE, 0xC5, 0x77, 0x7E, 0x13, 0x12, 0x1F, + 0xA7, 0x2B, 0x9C, 0xC1, 0xB7, 0xCC, 0x01, 0x39, 0x71, 0x53, 0x09, + 0xB0, 0x86, 0xC9, 0x60, 0xE1, 0x8F, 0xD9, 0x69, 0x77, 0x4E, 0xB8 } + }; + secp256k1_pubkey pubkeys[N_PUBKEYS]; + secp256k1_pubkey *sorted[N_PUBKEYS]; + const secp256k1_pubkey *pks_ptr[N_PUBKEYS]; + int i; + + sorted[0] = &pubkeys[3]; + sorted[1] = &pubkeys[0]; + sorted[2] = &pubkeys[0]; + sorted[3] = &pubkeys[4]; + sorted[4] = &pubkeys[1]; + sorted[5] = &pubkeys[2]; + + for (i = 0; i < N_PUBKEYS; i++) { + CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkeys[i], pk_ser[i], sizeof(pk_ser[i]))); + pks_ptr[i] = &pubkeys[i]; + } + CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, N_PUBKEYS) == 1); + for (i = 0; i < N_PUBKEYS; i++) { + CHECK(secp256k1_memcmp_var(pks_ptr[i], sorted[i], sizeof(secp256k1_pubkey)) == 0); + } +} + +static void run_pubkey_sort(void) { + test_sort_api(); + test_sort(); + test_sort_vectors(); +} + + static void run_random_pubkeys(void) { int i; for (i = 0; i < 10*COUNT; i++) { @@ -7588,6 +7815,9 @@ int main(int argc, char **argv) { run_modinv_tests(); run_inverse_tests(); + /* sorting tests */ + run_hsort_tests(); + /* hash tests */ run_sha256_known_output_tests(); run_sha256_counter_tests(); @@ -7644,6 +7874,7 @@ int main(int argc, char **argv) { /* ecdsa tests */ run_ec_illegal_argument_tests(); run_pubkey_comparison(); + run_pubkey_sort(); run_random_pubkeys(); run_ecdsa_der_parse(); run_ecdsa_sign_verify(); From c0e4ec3fee2d4755c0421a4568ba3253c2063180 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 6 May 2024 17:42:03 +0200 Subject: [PATCH 358/557] release: prepare for 0.5.0 --- CHANGELOG.md | 7 +++++-- CMakeLists.txt | 8 ++++---- configure.ac | 12 ++++++------ 3 files changed, 15 insertions(+), 12 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 98252da5a8..ff466b1230 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.5.0] - 2025-05-06 #### Added - New function `secp256k1_ec_pubkey_sort` that sorts public keys using lexicographic (of compressed serialization) order. @@ -15,6 +15,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - The related configure option `--ecmult-gen-precision` was replaced with `--ecmult-gen-kb` (`ECMULT_GEN_KB` for CMake). - This changes the supported precomputed table sizes for these operations. The new supported sizes are 2 KiB, 22 KiB, or 86 KiB (while the old supported sizes were 32 KiB, 64 KiB, or 512 KiB). +#### ABI Compatibility +The ABI is backward compatible with versions 0.4.x and 0.3.x. + ## [0.4.1] - 2023-12-21 #### Changed @@ -123,7 +126,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...HEAD +[0.5.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...v0.5.0 [0.4.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...v0.4.1 [0.4.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...v0.4.0 [0.3.2]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.1...v0.3.2 diff --git a/CMakeLists.txt b/CMakeLists.txt index a70f2edd6f..9e4687ae65 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.4.2 + VERSION 0.5.0 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -34,9 +34,9 @@ endif() # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -set(${PROJECT_NAME}_LIB_VERSION_CURRENT 3) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 2) -set(${PROJECT_NAME}_LIB_VERSION_AGE 1) +set(${PROJECT_NAME}_LIB_VERSION_CURRENT 4) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) +set(${PROJECT_NAME}_LIB_VERSION_AGE 2) set(CMAKE_C_STANDARD 90) set(CMAKE_C_EXTENSIONS OFF) diff --git a/configure.ac b/configure.ac index 68eae5ad8c..42f94c8699 100644 --- a/configure.ac +++ b/configure.ac @@ -4,18 +4,18 @@ AC_PREREQ([2.60]) # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) -define(_PKG_VERSION_MINOR, 4) -define(_PKG_VERSION_PATCH, 2) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_MINOR, 5) +define(_PKG_VERSION_PATCH, 0) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -define(_LIB_VERSION_CURRENT, 3) -define(_LIB_VERSION_REVISION, 2) -define(_LIB_VERSION_AGE, 1) +define(_LIB_VERSION_CURRENT, 4) +define(_LIB_VERSION_REVISION, 0) +define(_LIB_VERSION_AGE, 2) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From dd695563e68d605b837b7813ae7bfafbf866ddff Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 6 May 2024 16:28:01 +0000 Subject: [PATCH 359/557] check-abi: explicitly provide public headers Without this commit, the check-abi shell script outputs false positives because it consider some headers public that are actually not public. --- tools/check-abi.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/check-abi.sh b/tools/check-abi.sh index 55c945ac16..94a98831e1 100755 --- a/tools/check-abi.sh +++ b/tools/check-abi.sh @@ -49,7 +49,7 @@ checkout_and_build() { -DSECP256K1_BUILD_CTIME_TESTS=OFF \ -DSECP256K1_BUILD_EXAMPLES=OFF cmake --build . -j "$(nproc)" - abi-dumper src/libsecp256k1.so -o ABI.dump -lver "$2" + abi-dumper src/libsecp256k1.so -o ABI.dump -lver "$2" -public-headers ../include/ cd "$_orig_dir" } From 2f05e2da4b7a2a9ca67c5aa9f6ed26ac9fcc2f6e Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 6 May 2024 18:26:05 +0200 Subject: [PATCH 360/557] release cleanup: bump version after 0.5.0 --- CHANGELOG.md | 3 +++ CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index ff466b1230..9c588c217d 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.5.0] - 2025-05-06 #### Added @@ -126,6 +128,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...HEAD [0.5.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...v0.5.0 [0.4.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...v0.4.1 [0.4.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...v0.4.0 diff --git a/CMakeLists.txt b/CMakeLists.txt index 9e4687ae65..88994d828a 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -11,7 +11,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.5.0 + VERSION 0.5.1 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -35,7 +35,7 @@ endif() # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 4) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) set(${PROJECT_NAME}_LIB_VERSION_AGE 2) set(CMAKE_C_STANDARD 90) diff --git a/configure.ac b/configure.ac index 42f94c8699..8b62e1dbfd 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 5) -define(_PKG_VERSION_PATCH, 0) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 1) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 4) -define(_LIB_VERSION_REVISION, 0) +define(_LIB_VERSION_REVISION, 1) define(_LIB_VERSION_AGE, 2) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From d45d9b74bb85ebf5a82c29d6e7f9b293212726de Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 6 May 2024 19:19:28 +0200 Subject: [PATCH 361/557] changelog: Correct 0.5.0 release date --- CHANGELOG.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 9c588c217d..a2855912fd 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] -## [0.5.0] - 2025-05-06 +## [0.5.0] - 2024-05-06 #### Added - New function `secp256k1_ec_pubkey_sort` that sorts public keys using lexicographic (of compressed serialization) order. From 9f4c8cd730bba94f0c09cbef9b0cf9df44eb7b03 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 7 May 2024 12:29:25 +0100 Subject: [PATCH 362/557] cmake: Fix `check_arm32_assembly` when using as subproject --- cmake/CheckArm32Assembly.cmake | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/cmake/CheckArm32Assembly.cmake b/cmake/CheckArm32Assembly.cmake index 15c44b24b0..baeeff0292 100644 --- a/cmake/CheckArm32Assembly.cmake +++ b/cmake/CheckArm32Assembly.cmake @@ -1,6 +1,6 @@ function(check_arm32_assembly) try_compile(HAVE_ARM32_ASM - ${CMAKE_BINARY_DIR}/check_arm32_assembly - SOURCES ${CMAKE_SOURCE_DIR}/cmake/source_arm32.s + ${PROJECT_BINARY_DIR}/check_arm32_assembly + SOURCES ${PROJECT_SOURCE_DIR}/cmake/source_arm32.s ) endfunction() From 9554362b1532d8292ab805cefb9c886cd55ac205 Mon Sep 17 00:00:00 2001 From: Nicolas Iooss Date: Wed, 8 May 2024 19:13:35 +0200 Subject: [PATCH 363/557] tests: call secp256k1_ecmult_multi_var with a non-NULL error callback Function secp256k1_ecmult_multi_var expects to be called with a non-NULL error_callback parameter. Fix the invocation in test_ecmult_accumulate to do this. While at it, wrap the call in a CHECK macro to ensure it succeeds. Fixes: https://github.com/bitcoin-core/secp256k1/issues/1527 --- src/tests.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/tests.c b/src/tests.c index 2eb3fbfdce..dab47608c2 100644 --- a/src/tests.c +++ b/src/tests.c @@ -5494,8 +5494,8 @@ static void test_ecmult_accumulate(secp256k1_sha256* acc, const secp256k1_scalar secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &rj1, x); secp256k1_ecmult(&rj2, &gj, x, &secp256k1_scalar_zero); secp256k1_ecmult(&rj3, &infj, &secp256k1_scalar_zero, x); - secp256k1_ecmult_multi_var(NULL, scratch, &rj4, x, NULL, NULL, 0); - secp256k1_ecmult_multi_var(NULL, scratch, &rj5, &secp256k1_scalar_zero, test_ecmult_accumulate_cb, (void*)x, 1); + CHECK(secp256k1_ecmult_multi_var(&CTX->error_callback, scratch, &rj4, x, NULL, NULL, 0)); + CHECK(secp256k1_ecmult_multi_var(&CTX->error_callback, scratch, &rj5, &secp256k1_scalar_zero, test_ecmult_accumulate_cb, (void*)x, 1)); secp256k1_ecmult_const(&rj6, &secp256k1_ge_const_g, x); secp256k1_ge_set_gej_var(&r, &rj1); CHECK(secp256k1_gej_eq_ge_var(&rj2, &r)); From cae9a7ad149d359c061372107d212cdcfad5d323 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 11 May 2024 11:05:12 +0100 Subject: [PATCH 364/557] cmake: Do not set emulated PROJECT_IS_TOP_LEVEL as cache variable Otherwise, downstream projects, which integrate the libsecp256k1 library using the `add_subdirectory()` command, will be affected. --- CMakeLists.txt | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 88994d828a..27d6e64316 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -18,13 +18,14 @@ project(libsecp256k1 ) if(CMAKE_VERSION VERSION_LESS 3.21) + # Emulates CMake 3.21+ behavior. get_directory_property(parent_directory PARENT_DIRECTORY) if(parent_directory) - set(PROJECT_IS_TOP_LEVEL OFF CACHE INTERNAL "Emulates CMake 3.21+ behavior.") - set(${PROJECT_NAME}_IS_TOP_LEVEL OFF CACHE INTERNAL "Emulates CMake 3.21+ behavior.") + set(PROJECT_IS_TOP_LEVEL OFF) + set(${PROJECT_NAME}_IS_TOP_LEVEL OFF) else() - set(PROJECT_IS_TOP_LEVEL ON CACHE INTERNAL "Emulates CMake 3.21+ behavior.") - set(${PROJECT_NAME}_IS_TOP_LEVEL ON CACHE INTERNAL "Emulates CMake 3.21+ behavior.") + set(PROJECT_IS_TOP_LEVEL ON) + set(${PROJECT_NAME}_IS_TOP_LEVEL ON) endif() unset(parent_directory) endif() From ec4c002faa350f02919fe0f710279d2922e254a1 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 11 May 2024 11:13:41 +0100 Subject: [PATCH 365/557] cmake: Simplify `PROJECT_IS_TOP_LEVEL` emulation Detecting whether it is the top level by comparing the value of `CMAKE_SOURCE_DIR` with `CMAKE_CURRENT_SOURCE_DIR` is supported by all versions of CMake and is a very common pattern. --- CMakeLists.txt | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 27d6e64316..fffa123d99 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -19,15 +19,13 @@ project(libsecp256k1 if(CMAKE_VERSION VERSION_LESS 3.21) # Emulates CMake 3.21+ behavior. - get_directory_property(parent_directory PARENT_DIRECTORY) - if(parent_directory) - set(PROJECT_IS_TOP_LEVEL OFF) - set(${PROJECT_NAME}_IS_TOP_LEVEL OFF) - else() + if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) set(PROJECT_IS_TOP_LEVEL ON) set(${PROJECT_NAME}_IS_TOP_LEVEL ON) + else() + set(PROJECT_IS_TOP_LEVEL OFF) + set(${PROJECT_NAME}_IS_TOP_LEVEL OFF) endif() - unset(parent_directory) endif() # The library version is based on libtool versioning of the ABI. The set of From 55e5d975db9a641bcbeffcc3fc086e54d322fe26 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 15 Apr 2024 17:07:41 +0200 Subject: [PATCH 366/557] autotools: Disable eager MSan in ctime_tests Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> --- build-aux/m4/bitcoin_secp.m4 | 12 ++++++++++++ configure.ac | 21 +++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/build-aux/m4/bitcoin_secp.m4 b/build-aux/m4/bitcoin_secp.m4 index 11adef4f22..fee2d7b4db 100644 --- a/build-aux/m4/bitcoin_secp.m4 +++ b/build-aux/m4/bitcoin_secp.m4 @@ -45,6 +45,18 @@ fi AC_MSG_RESULT($has_valgrind) ]) +AC_DEFUN([SECP_MSAN_CHECK], [ +AC_MSG_CHECKING(whether MemorySanitizer is enabled) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ + #if defined(__has_feature) + # if __has_feature(memory_sanitizer) + # error "MemorySanitizer is enabled." + # endif + #endif + ]])], [msan_enabled=no], [msan_enabled=yes]) +AC_MSG_RESULT([$msan_enabled]) +]) + dnl SECP_TRY_APPEND_CFLAGS(flags, VAR) dnl Append flags to VAR if CC accepts them. AC_DEFUN([SECP_TRY_APPEND_CFLAGS], [ diff --git a/configure.ac b/configure.ac index 8b62e1dbfd..085c360958 100644 --- a/configure.ac +++ b/configure.ac @@ -247,6 +247,20 @@ if test x"$enable_ctime_tests" = x"auto"; then enable_ctime_tests=$enable_valgrind fi +print_msan_notice=no +if test x"$enable_ctime_tests" = x"yes" && test x"$GCC" = x"yes"; then + SECP_MSAN_CHECK + # MSan on Clang >=16 reports unitialized memory in function parameters and return values, even if + # the uninitalized variable is never actually "used". This is called "eager" checking, and it's + # sounds like good idea for normal use of MSan. However, it yields many false positives in the + # ctime_tests because many return values depend on secret (i.e., "uninitialized") values, and + # we're only interested in detecting branches (which count as "uses") on secret data. + if test x"$msan_enabled" = x"yes"; then + SECP_TRY_APPEND_CFLAGS([-fno-sanitize-memory-param-retval], SECP_CFLAGS) + print_msan_notice=yes + fi +fi + if test x"$enable_coverage" = x"yes"; then SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOVERAGE=1" SECP_CFLAGS="-O0 --coverage $SECP_CFLAGS" @@ -492,3 +506,10 @@ echo " CPPFLAGS = $CPPFLAGS" echo " SECP_CFLAGS = $SECP_CFLAGS" echo " CFLAGS = $CFLAGS" echo " LDFLAGS = $LDFLAGS" + +if test x"$print_msan_notice" = x"yes"; then + echo + echo "Note:" + echo " MemorySanitizer detected, tried to add -fno-sanitize-memory-param-retval to SECP_CFLAGS" + echo " to avoid false positives in ctime_tests. Pass --disable-ctime-tests to avoid this." +fi From e1bef0961c53b23dbaf35f5fa87149a1aadfad37 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 22 May 2024 15:10:33 +0200 Subject: [PATCH 367/557] configure: Move "experimental" warning to bottom to make it more promiment --- configure.ac | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/configure.ac b/configure.ac index 085c360958..9640a67399 100644 --- a/configure.ac +++ b/configure.ac @@ -440,12 +440,7 @@ fi ### Check for --enable-experimental if necessary ### -if test x"$enable_experimental" = x"yes"; then - AC_MSG_NOTICE([******]) - AC_MSG_NOTICE([WARNING: experimental build]) - AC_MSG_NOTICE([Experimental features do not have stable APIs or properties, and may not be safe for production use.]) - AC_MSG_NOTICE([******]) -else +if test x"$enable_experimental" = x"no"; then if test x"$set_asm" = x"arm32"; then AC_MSG_ERROR([ARM32 assembly is experimental. Use --enable-experimental to allow.]) fi @@ -513,3 +508,10 @@ if test x"$print_msan_notice" = x"yes"; then echo " MemorySanitizer detected, tried to add -fno-sanitize-memory-param-retval to SECP_CFLAGS" echo " to avoid false positives in ctime_tests. Pass --disable-ctime-tests to avoid this." fi + +if test x"$enable_experimental" = x"yes"; then + echo + echo "WARNING: Experimental build" + echo " Experimental features do not have stable APIs or properties, and may not be safe for" + echo " production use." +fi From ebfb82ee2f8c15ae6129932380b1dfb0942ea35a Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 22 May 2024 16:51:51 +0200 Subject: [PATCH 368/557] ci: Add job with -fsanitize-memory-param-retval --- .github/workflows/ci.yml | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index d246682044..0d3ca20e93 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -485,18 +485,24 @@ jobs: matrix: configuration: - env_vars: + CTIMETESTS: 'yes' CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -g' - env_vars: ECMULTGENKB: 2 ECMULTWINDOW: 2 + CTIMETESTS: 'yes' CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -g -O3' + - env_vars: + # -fsanitize-memory-param-retval is clang's default, but our build system disables it + # when ctime_tests when enabled. + CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -fsanitize-memory-param-retval -g' + CTIMETESTS: 'no' env: ECDH: 'yes' RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' - CTIMETESTS: 'yes' CC: 'clang' SECP256K1_TEST_ITERS: 32 ASM: 'no' From 59db007f0ff909de8d6f86b5c06ccf2d202c365b Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 27 May 2024 02:01:55 +0200 Subject: [PATCH 369/557] tests: refactor: rename `random_group_element_...` -> `random_ge_...` The rename was done with the following command: $ sed -i 's/random_group_element_/random_ge_/g' $(git grep -l random_group_element_) --- src/modules/ellswift/tests_impl.h | 2 +- src/tests.c | 52 +++++++++++++++---------------- 2 files changed, 27 insertions(+), 27 deletions(-) diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index f96e3a1268..7fd7b04c43 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -229,7 +229,7 @@ void run_ellswift_tests(void) { secp256k1_ge g, g2; secp256k1_pubkey pubkey, pubkey2; /* Generate random public key and random randomizer. */ - random_group_element_test(&g); + random_ge_test(&g); secp256k1_pubkey_save(&pubkey, &g); secp256k1_testrand256(rnd32); /* Convert the public key to ElligatorSwift and back. */ diff --git a/src/tests.c b/src/tests.c index dab47608c2..4a1c6c518e 100644 --- a/src/tests.c +++ b/src/tests.c @@ -152,7 +152,7 @@ static void random_gej_z_magnitude(secp256k1_gej *gej) { random_field_element_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); } -static void random_group_element_test(secp256k1_ge *ge) { +static void random_ge_test(secp256k1_ge *ge) { secp256k1_fe fe; do { random_fe_test(&fe); @@ -164,7 +164,7 @@ static void random_group_element_test(secp256k1_ge *ge) { ge->infinity = 0; } -static void random_group_element_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { +static void random_ge_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { secp256k1_fe z2, z3; random_fe_non_zero_test(&gej->z); secp256k1_fe_sqr(&z2, &gej->z); @@ -176,8 +176,8 @@ static void random_group_element_jacobian_test(secp256k1_gej *gej, const secp256 static void random_gej_test(secp256k1_gej *gej) { secp256k1_ge ge; - random_group_element_test(&ge); - random_group_element_jacobian_test(gej, &ge); + random_ge_test(&ge); + random_ge_jacobian_test(gej, &ge); } static void random_scalar_order_test(secp256k1_scalar *num) { @@ -3792,7 +3792,7 @@ static void test_ge(void) { for (i = 0; i < runs; i++) { int j, k; secp256k1_ge g; - random_group_element_test(&g); + random_ge_test(&g); if (i >= runs - 2) { secp256k1_ge_mul_lambda(&g, &ge[1]); CHECK(!secp256k1_ge_eq_var(&g, &ge[1])); @@ -3805,9 +3805,9 @@ static void test_ge(void) { secp256k1_ge_neg(&ge[3 + 4 * i], &g); secp256k1_ge_neg(&ge[4 + 4 * i], &g); secp256k1_gej_set_ge(&gej[1 + 4 * i], &ge[1 + 4 * i]); - random_group_element_jacobian_test(&gej[2 + 4 * i], &ge[2 + 4 * i]); + random_ge_jacobian_test(&gej[2 + 4 * i], &ge[2 + 4 * i]); secp256k1_gej_set_ge(&gej[3 + 4 * i], &ge[3 + 4 * i]); - random_group_element_jacobian_test(&gej[4 + 4 * i], &ge[4 + 4 * i]); + random_ge_jacobian_test(&gej[4 + 4 * i], &ge[4 + 4 * i]); for (j = 0; j < 4; j++) { random_ge_x_magnitude(&ge[1 + j + 4 * i]); random_ge_y_magnitude(&ge[1 + j + 4 * i]); @@ -3975,7 +3975,7 @@ static void test_ge(void) { /* Test batch gej -> ge conversion with many infinities. */ for (i = 0; i < 4 * runs + 1; i++) { int odd; - random_group_element_test(&ge[i]); + random_ge_test(&ge[i]); odd = secp256k1_fe_is_odd(&ge[i].x); CHECK(odd == 0 || odd == 1); /* randomly set half the points to infinity */ @@ -4012,7 +4012,7 @@ static void test_intialized_inf(void) { secp256k1_fe zinv; /* Test that adding P+(-P) results in a fully initialized infinity*/ - random_group_element_test(&p); + random_ge_test(&p); secp256k1_gej_set_ge(&pj, &p); secp256k1_gej_neg(&npj, &pj); @@ -4437,7 +4437,7 @@ static void test_ecmult_target(const secp256k1_scalar* target, int mode) { /* Generate a random input point. */ if (mode != 0) { - random_group_element_test(&p); + random_ge_test(&p); secp256k1_gej_set_ge(&pj, &p); } @@ -4553,7 +4553,7 @@ static void ecmult_const_mult_zero_one(void) { random_scalar_order_test(&s); secp256k1_scalar_negate(&negone, &secp256k1_scalar_one); - random_group_element_test(&point); + random_ge_test(&point); secp256k1_ge_set_infinity(&inf); /* 0*point */ @@ -4606,7 +4606,7 @@ static void ecmult_const_edges(void) { secp256k1_scalar_add(&q, &q, &scalars_near_split_bounds[i - 1]); secp256k1_scalar_add(&q, &q, &scalars_near_split_bounds[i - 1]); } - random_group_element_test(&point); + random_ge_test(&point); secp256k1_ecmult_const(&res, &point, &q); ecmult_const_check_result(&point, &q, &res); } @@ -4623,7 +4623,7 @@ static void ecmult_const_mult_xonly(void) { secp256k1_scalar q; int res; /* Random base point. */ - random_group_element_test(&base); + random_ge_test(&base); /* Random scalar to multiply it with. */ random_scalar_order_test(&q); /* If i is odd, n=d*base.x for random non-zero d */ @@ -4743,7 +4743,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi random_scalar_order(&sc[0]); random_scalar_order(&sc[1]); - random_group_element_test(&ptg); + random_ge_test(&ptg); secp256k1_gej_set_ge(&ptgj, &ptg); pt[0] = ptg; pt[1] = secp256k1_ge_const_g; @@ -4789,7 +4789,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi for (j = 0; j < 3; j++) { for (i = 0; i < 32; i++) { - random_group_element_test(&ptg); + random_ge_test(&ptg); pt[i] = ptg; secp256k1_scalar_set_int(&sc[i], 0); } @@ -4798,7 +4798,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi } for (j = 0; j < 3; j++) { - random_group_element_test(&ptg); + random_ge_test(&ptg); for (i = 0; i < 16; i++) { random_scalar_order(&sc[2*i]); secp256k1_scalar_negate(&sc[2*i + 1], &sc[2*i]); @@ -4811,7 +4811,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi random_scalar_order(&sc[0]); for (i = 0; i < 16; i++) { - random_group_element_test(&ptg); + random_ge_test(&ptg); sc[2*i] = sc[0]; sc[2*i+1] = sc[0]; @@ -4823,7 +4823,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi CHECK(secp256k1_gej_is_infinity(&r)); } - random_group_element_test(&ptg); + random_ge_test(&ptg); secp256k1_scalar_set_int(&sc[0], 0); pt[0] = ptg; for (i = 1; i < 32; i++) { @@ -4847,7 +4847,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi for (i = 0; i < 20; i++) { secp256k1_ge ptg; sc[i] = sc[0]; - random_group_element_test(&ptg); + random_ge_test(&ptg); pt[i] = ptg; secp256k1_gej_add_ge_var(&r, &r, &pt[i], NULL); } @@ -4865,7 +4865,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_scalar rs; secp256k1_scalar_set_int(&rs, 0); - random_group_element_test(&ptg); + random_ge_test(&ptg); for (i = 0; i < 20; i++) { random_scalar_order(&sc[i]); pt[i] = ptg; @@ -4881,7 +4881,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi /* Sanity check that zero scalars don't cause problems */ for (ncount = 0; ncount < 20; ncount++) { random_scalar_order(&sc[ncount]); - random_group_element_test(&pt[ncount]); + random_ge_test(&pt[ncount]); } secp256k1_scalar_clear(&sc[0]); @@ -4902,7 +4902,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_ge ptg; secp256k1_gej ptgj; - random_group_element_test(&ptg); + random_ge_test(&ptg); secp256k1_gej_set_ge(&ptgj, &ptg); for(t0i = 0; t0i < TOP; t0i++) { @@ -5021,7 +5021,7 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { if (nonzero_result && filled < num_nonzero) { /* If a nonzero result is desired, and there is space, add a random nonzero term. */ random_scalar_order_test(&scalars[filled]); - random_group_element_test(&ge_tmp); + random_ge_test(&ge_tmp); secp256k1_gej_set_ge(&gejs[filled], &ge_tmp); ++filled; } @@ -5045,7 +5045,7 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { random_scalar_order_test(&scalars[filled]); } else { secp256k1_scalar_set_int(&scalars[filled], 0); - random_group_element_test(&ge_tmp); + random_ge_test(&ge_tmp); secp256k1_gej_set_ge(&gejs[filled], &ge_tmp); } ++filled; @@ -5118,7 +5118,7 @@ static void test_ecmult_multi_batch_single(secp256k1_ecmult_multi_func ecmult_mu ecmult_multi_data data; secp256k1_scratch *scratch_empty; - random_group_element_test(&pt); + random_ge_test(&pt); random_scalar_order(&sc); data.sc = ≻ data.pt = &pt; @@ -5249,7 +5249,7 @@ static void test_ecmult_multi_batching(void) { for(i = 0; i < n_points; i++) { secp256k1_ge ptg; secp256k1_gej ptgj; - random_group_element_test(&ptg); + random_ge_test(&ptg); secp256k1_gej_set_ge(&ptgj, &ptg); pt[i] = ptg; random_scalar_order(&sc[i]); From 0fef8479be9d4a7fb878aac6ee4412a0c3b92296 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 27 May 2024 02:22:45 +0200 Subject: [PATCH 370/557] tests: refactor: rename `random_field_element_magnitude` -> `random_fe_magnitude` Note that the already existing function `random_fe_magnitude` is removed and the call-sites are adapted to pass the magnitude range of 8 (the maximum for secp256k1_fe_mul and secp256k1_fe_sqr) explicitly. --- src/tests.c | 26 +++++++++++--------------- 1 file changed, 11 insertions(+), 15 deletions(-) diff --git a/src/tests.c b/src/tests.c index 4a1c6c518e..5fb2a28575 100644 --- a/src/tests.c +++ b/src/tests.c @@ -96,7 +96,7 @@ static void uncounting_illegal_callback_fn(const char* str, void* data) { (*p)--; } -static void random_field_element_magnitude(secp256k1_fe *fe, int m) { +static void random_fe_magnitude(secp256k1_fe *fe, int m) { secp256k1_fe zero; int n = secp256k1_testrand_int(m + 1); secp256k1_fe_normalize(fe); @@ -128,28 +128,24 @@ static void random_fe_non_zero_test(secp256k1_fe *fe) { } while(secp256k1_fe_is_zero(fe)); } -static void random_fe_magnitude(secp256k1_fe *fe) { - random_field_element_magnitude(fe, 8); -} - static void random_ge_x_magnitude(secp256k1_ge *ge) { - random_field_element_magnitude(&ge->x, SECP256K1_GE_X_MAGNITUDE_MAX); + random_fe_magnitude(&ge->x, SECP256K1_GE_X_MAGNITUDE_MAX); } static void random_ge_y_magnitude(secp256k1_ge *ge) { - random_field_element_magnitude(&ge->y, SECP256K1_GE_Y_MAGNITUDE_MAX); + random_fe_magnitude(&ge->y, SECP256K1_GE_Y_MAGNITUDE_MAX); } static void random_gej_x_magnitude(secp256k1_gej *gej) { - random_field_element_magnitude(&gej->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); + random_fe_magnitude(&gej->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); } static void random_gej_y_magnitude(secp256k1_gej *gej) { - random_field_element_magnitude(&gej->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); + random_fe_magnitude(&gej->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); } static void random_gej_z_magnitude(secp256k1_gej *gej) { - random_field_element_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); + random_fe_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); } static void random_ge_test(secp256k1_ge *ge) { @@ -3269,13 +3265,13 @@ static void run_fe_mul(void) { for (i = 0; i < 100 * COUNT; ++i) { secp256k1_fe a, b, c, d; random_fe(&a); - random_fe_magnitude(&a); + random_fe_magnitude(&a, 8); random_fe(&b); - random_fe_magnitude(&b); + random_fe_magnitude(&b, 8); random_fe_test(&c); - random_fe_magnitude(&c); + random_fe_magnitude(&c, 8); random_fe_test(&d); - random_fe_magnitude(&d); + random_fe_magnitude(&d, 8); test_fe_mul(&a, &a, 1); test_fe_mul(&c, &c, 1); test_fe_mul(&a, &b, 0); @@ -3829,7 +3825,7 @@ static void test_ge(void) { /* Generate random zf, and zfi2 = 1/zf^2, zfi3 = 1/zf^3 */ random_fe_non_zero_test(&zf); - random_fe_magnitude(&zf); + random_fe_magnitude(&zf, 8); secp256k1_fe_inv_var(&zfi3, &zf); secp256k1_fe_sqr(&zfi2, &zfi3); secp256k1_fe_mul(&zfi3, &zfi3, &zfi2); From 0c6bc76dcdf3be94c58772a88a2e94878cda6447 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 27 May 2024 02:38:30 +0200 Subject: [PATCH 371/557] tests: refactor: move `random_` helpers from tests.c to testutil.h Can be reviewed via `--color-moved=dimmed-zebra`. --- src/tests.c | 112 ------------------------------------------------ src/testutil.h | 113 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 113 insertions(+), 112 deletions(-) diff --git a/src/tests.c b/src/tests.c index 5fb2a28575..9f2313c480 100644 --- a/src/tests.c +++ b/src/tests.c @@ -96,118 +96,6 @@ static void uncounting_illegal_callback_fn(const char* str, void* data) { (*p)--; } -static void random_fe_magnitude(secp256k1_fe *fe, int m) { - secp256k1_fe zero; - int n = secp256k1_testrand_int(m + 1); - secp256k1_fe_normalize(fe); - if (n == 0) { - return; - } - secp256k1_fe_clear(&zero); - secp256k1_fe_negate(&zero, &zero, 0); - secp256k1_fe_mul_int_unchecked(&zero, n - 1); - secp256k1_fe_add(fe, &zero); -#ifdef VERIFY - CHECK(fe->magnitude == n); -#endif -} - -static void random_fe_test(secp256k1_fe *x) { - unsigned char bin[32]; - do { - secp256k1_testrand256_test(bin); - if (secp256k1_fe_set_b32_limit(x, bin)) { - return; - } - } while(1); -} - -static void random_fe_non_zero_test(secp256k1_fe *fe) { - do { - random_fe_test(fe); - } while(secp256k1_fe_is_zero(fe)); -} - -static void random_ge_x_magnitude(secp256k1_ge *ge) { - random_fe_magnitude(&ge->x, SECP256K1_GE_X_MAGNITUDE_MAX); -} - -static void random_ge_y_magnitude(secp256k1_ge *ge) { - random_fe_magnitude(&ge->y, SECP256K1_GE_Y_MAGNITUDE_MAX); -} - -static void random_gej_x_magnitude(secp256k1_gej *gej) { - random_fe_magnitude(&gej->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); -} - -static void random_gej_y_magnitude(secp256k1_gej *gej) { - random_fe_magnitude(&gej->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); -} - -static void random_gej_z_magnitude(secp256k1_gej *gej) { - random_fe_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); -} - -static void random_ge_test(secp256k1_ge *ge) { - secp256k1_fe fe; - do { - random_fe_test(&fe); - if (secp256k1_ge_set_xo_var(ge, &fe, secp256k1_testrand_bits(1))) { - secp256k1_fe_normalize(&ge->y); - break; - } - } while(1); - ge->infinity = 0; -} - -static void random_ge_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { - secp256k1_fe z2, z3; - random_fe_non_zero_test(&gej->z); - secp256k1_fe_sqr(&z2, &gej->z); - secp256k1_fe_mul(&z3, &z2, &gej->z); - secp256k1_fe_mul(&gej->x, &ge->x, &z2); - secp256k1_fe_mul(&gej->y, &ge->y, &z3); - gej->infinity = ge->infinity; -} - -static void random_gej_test(secp256k1_gej *gej) { - secp256k1_ge ge; - random_ge_test(&ge); - random_ge_jacobian_test(gej, &ge); -} - -static void random_scalar_order_test(secp256k1_scalar *num) { - do { - unsigned char b32[32]; - int overflow = 0; - secp256k1_testrand256_test(b32); - secp256k1_scalar_set_b32(num, b32, &overflow); - if (overflow || secp256k1_scalar_is_zero(num)) { - continue; - } - break; - } while(1); -} - -static void random_scalar_order(secp256k1_scalar *num) { - do { - unsigned char b32[32]; - int overflow = 0; - secp256k1_testrand256(b32); - secp256k1_scalar_set_b32(num, b32, &overflow); - if (overflow || secp256k1_scalar_is_zero(num)) { - continue; - } - break; - } while(1); -} - -static void random_scalar_order_b32(unsigned char *b32) { - secp256k1_scalar num; - random_scalar_order(&num); - secp256k1_scalar_get_b32(b32, &num); -} - static void run_xoshiro256pp_tests(void) { { size_t i; diff --git a/src/testutil.h b/src/testutil.h index 4e2cb7d5b3..c4c5e07776 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -7,6 +7,7 @@ #define SECP256K1_TESTUTIL_H #include "field.h" +#include "group.h" #include "testrand.h" #include "util.h" @@ -26,4 +27,116 @@ static void random_fe_non_zero(secp256k1_fe *nz) { } while (secp256k1_fe_is_zero(nz)); } +static void random_fe_magnitude(secp256k1_fe *fe, int m) { + secp256k1_fe zero; + int n = secp256k1_testrand_int(m + 1); + secp256k1_fe_normalize(fe); + if (n == 0) { + return; + } + secp256k1_fe_clear(&zero); + secp256k1_fe_negate(&zero, &zero, 0); + secp256k1_fe_mul_int_unchecked(&zero, n - 1); + secp256k1_fe_add(fe, &zero); +#ifdef VERIFY + CHECK(fe->magnitude == n); +#endif +} + +static void random_fe_test(secp256k1_fe *x) { + unsigned char bin[32]; + do { + secp256k1_testrand256_test(bin); + if (secp256k1_fe_set_b32_limit(x, bin)) { + return; + } + } while(1); +} + +static void random_fe_non_zero_test(secp256k1_fe *fe) { + do { + random_fe_test(fe); + } while(secp256k1_fe_is_zero(fe)); +} + +static void random_ge_x_magnitude(secp256k1_ge *ge) { + random_fe_magnitude(&ge->x, SECP256K1_GE_X_MAGNITUDE_MAX); +} + +static void random_ge_y_magnitude(secp256k1_ge *ge) { + random_fe_magnitude(&ge->y, SECP256K1_GE_Y_MAGNITUDE_MAX); +} + +static void random_gej_x_magnitude(secp256k1_gej *gej) { + random_fe_magnitude(&gej->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); +} + +static void random_gej_y_magnitude(secp256k1_gej *gej) { + random_fe_magnitude(&gej->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); +} + +static void random_gej_z_magnitude(secp256k1_gej *gej) { + random_fe_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); +} + +static void random_ge_test(secp256k1_ge *ge) { + secp256k1_fe fe; + do { + random_fe_test(&fe); + if (secp256k1_ge_set_xo_var(ge, &fe, secp256k1_testrand_bits(1))) { + secp256k1_fe_normalize(&ge->y); + break; + } + } while(1); + ge->infinity = 0; +} + +static void random_ge_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { + secp256k1_fe z2, z3; + random_fe_non_zero_test(&gej->z); + secp256k1_fe_sqr(&z2, &gej->z); + secp256k1_fe_mul(&z3, &z2, &gej->z); + secp256k1_fe_mul(&gej->x, &ge->x, &z2); + secp256k1_fe_mul(&gej->y, &ge->y, &z3); + gej->infinity = ge->infinity; +} + +static void random_gej_test(secp256k1_gej *gej) { + secp256k1_ge ge; + random_ge_test(&ge); + random_ge_jacobian_test(gej, &ge); +} + +static void random_scalar_order_test(secp256k1_scalar *num) { + do { + unsigned char b32[32]; + int overflow = 0; + secp256k1_testrand256_test(b32); + secp256k1_scalar_set_b32(num, b32, &overflow); + if (overflow || secp256k1_scalar_is_zero(num)) { + continue; + } + break; + } while(1); +} + +static void random_scalar_order(secp256k1_scalar *num) { + do { + unsigned char b32[32]; + int overflow = 0; + secp256k1_testrand256(b32); + secp256k1_scalar_set_b32(num, b32, &overflow); + if (overflow || secp256k1_scalar_is_zero(num)) { + continue; + } + break; + } while(1); +} + +static void random_scalar_order_b32(unsigned char *b32) { + secp256k1_scalar num; + random_scalar_order(&num); + secp256k1_scalar_get_b32(b32, &num); +} + #endif /* SECP256K1_TESTUTIL_H */ From 0ee7453a997baf880fbe8c07ce5a5fb4b6cb9d32 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 27 May 2024 03:03:02 +0200 Subject: [PATCH 372/557] tests: refactor: add `testutil_` prefix to testutil.h functions --- src/modules/ecdh/tests_impl.h | 6 +- src/modules/ellswift/tests_impl.h | 10 +- src/modules/recovery/tests_impl.h | 4 +- src/tests.c | 196 +++++++++++++++--------------- src/tests_exhaustive.c | 4 +- src/testutil.h | 56 ++++----- 6 files changed, 138 insertions(+), 138 deletions(-) diff --git a/src/modules/ecdh/tests_impl.h b/src/modules/ecdh/tests_impl.h index 6be96eacbe..3c3acdaf8c 100644 --- a/src/modules/ecdh/tests_impl.h +++ b/src/modules/ecdh/tests_impl.h @@ -56,7 +56,7 @@ static void test_ecdh_generator_basepoint(void) { size_t point_ser_len = sizeof(point_ser); secp256k1_scalar s; - random_scalar_order(&s); + testutil_random_scalar_order(&s); secp256k1_scalar_get_b32(s_b32, &s); CHECK(secp256k1_ec_pubkey_create(CTX, &point[0], s_one) == 1); @@ -95,7 +95,7 @@ static void test_bad_scalar(void) { secp256k1_pubkey point; /* Create random point */ - random_scalar_order(&rand); + testutil_random_scalar_order(&rand); secp256k1_scalar_get_b32(s_rand, &rand); CHECK(secp256k1_ec_pubkey_create(CTX, &point, s_rand) == 1); @@ -127,7 +127,7 @@ static void test_result_basepoint(void) { CHECK(secp256k1_ecdh(CTX, out_base, &point, s_one, NULL, NULL) == 1); for (i = 0; i < 2 * COUNT; i++) { - random_scalar_order(&rand); + testutil_random_scalar_order(&rand); secp256k1_scalar_get_b32(s, &rand); secp256k1_scalar_inverse(&rand, &rand); secp256k1_scalar_get_b32(s_inv, &rand); diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index 7fd7b04c43..dc881ae524 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -229,7 +229,7 @@ void run_ellswift_tests(void) { secp256k1_ge g, g2; secp256k1_pubkey pubkey, pubkey2; /* Generate random public key and random randomizer. */ - random_ge_test(&g); + testutil_random_ge_test(&g); secp256k1_pubkey_save(&pubkey, &g); secp256k1_testrand256(rnd32); /* Convert the public key to ElligatorSwift and back. */ @@ -250,7 +250,7 @@ void run_ellswift_tests(void) { int ret; /* Generate random secret key and random randomizer. */ if (i & 1) secp256k1_testrand256_test(auxrnd32); - random_scalar_order_test(&sec); + testutil_random_scalar_order_test(&sec); secp256k1_scalar_get_b32(sec32, &sec); /* Construct ElligatorSwift-encoded public keys for that key. */ ret = secp256k1_ellswift_create(CTX, ell64, sec32, (i & 1) ? auxrnd32 : NULL); @@ -271,7 +271,7 @@ void run_ellswift_tests(void) { secp256k1_pubkey pub; int ret; /* Generate random secret key. */ - random_scalar_order_test(&sec); + testutil_random_scalar_order_test(&sec); secp256k1_scalar_get_b32(sec32, &sec); /* Generate random ElligatorSwift encoding for the remote key and decode it. */ secp256k1_testrand256_test(ell64); @@ -321,10 +321,10 @@ void run_ellswift_tests(void) { /* Generate random secret keys and random randomizers. */ secp256k1_testrand256_test(auxrnd32a); secp256k1_testrand256_test(auxrnd32b); - random_scalar_order_test(&seca); + testutil_random_scalar_order_test(&seca); /* Draw secb uniformly at random to make sure that the secret keys * differ */ - random_scalar_order(&secb); + testutil_random_scalar_order(&secb); secp256k1_scalar_get_b32(sec32a, &seca); secp256k1_scalar_get_b32(sec32b, &secb); diff --git a/src/modules/recovery/tests_impl.h b/src/modules/recovery/tests_impl.h index 728ccfed8d..78ab6d1a0b 100644 --- a/src/modules/recovery/tests_impl.h +++ b/src/modules/recovery/tests_impl.h @@ -106,8 +106,8 @@ static void test_ecdsa_recovery_end_to_end(void) { /* Generate a random key and message. */ { secp256k1_scalar msg, key; - random_scalar_order_test(&msg); - random_scalar_order_test(&key); + testutil_random_scalar_order_test(&msg); + testutil_random_scalar_order_test(&key); secp256k1_scalar_get_b32(privkey, &key); secp256k1_scalar_get_b32(message, &msg); } diff --git a/src/tests.c b/src/tests.c index 9f2313c480..9f777642ea 100644 --- a/src/tests.c +++ b/src/tests.c @@ -328,14 +328,14 @@ static void run_proper_context_tests(int use_prealloc) { CHECK(context_eq(my_ctx, my_ctx_fresh)); /*** attempt to use them ***/ - random_scalar_order_test(&msg); - random_scalar_order_test(&key); + testutil_random_scalar_order_test(&msg); + testutil_random_scalar_order_test(&key); secp256k1_ecmult_gen(&my_ctx->ecmult_gen_ctx, &pubj, &key); secp256k1_ge_set_gej(&pub, &pubj); /* obtain a working nonce */ do { - random_scalar_order_test(&nonce); + testutil_random_scalar_order_test(&nonce); } while(!secp256k1_ecdsa_sig_sign(&my_ctx->ecmult_gen_ctx, &sigr, &sigs, &key, &msg, &nonce, NULL)); /* try signing */ @@ -2017,13 +2017,13 @@ static void scalar_test(void) { unsigned char c[32]; /* Set 's' to a random scalar, with value 'snum'. */ - random_scalar_order_test(&s); + testutil_random_scalar_order_test(&s); /* Set 's1' to a random scalar, with value 's1num'. */ - random_scalar_order_test(&s1); + testutil_random_scalar_order_test(&s1); /* Set 's2' to a random scalar, with value 'snum2', and byte array representation 'c'. */ - random_scalar_order_test(&s2); + testutil_random_scalar_order_test(&s2); secp256k1_scalar_get_b32(c, &s2); { @@ -2171,7 +2171,7 @@ static void run_scalar_set_b32_seckey_tests(void) { secp256k1_scalar s2; /* Usually set_b32 and set_b32_seckey give the same result */ - random_scalar_order_b32(b32); + testutil_random_scalar_order_b32(b32); secp256k1_scalar_set_b32(&s1, b32, NULL); CHECK(secp256k1_scalar_set_b32_seckey(&s2, b32) == 1); CHECK(secp256k1_scalar_eq(&s1, &s2) == 1); @@ -2832,7 +2832,7 @@ static void run_scalar_tests(void) { static void random_fe_non_square(secp256k1_fe *ns) { secp256k1_fe r; - random_fe_non_zero(ns); + testutil_random_fe_non_zero(ns); if (secp256k1_fe_sqrt(&r, ns)) { secp256k1_fe_negate(ns, ns, 1); } @@ -3009,11 +3009,11 @@ static void run_field_misc(void) { for (i = 0; i < 1000 * COUNT; i++) { secp256k1_fe_storage xs, ys, zs; if (i & 1) { - random_fe(&x); + testutil_random_fe(&x); } else { - random_fe_test(&x); + testutil_random_fe_test(&x); } - random_fe_non_zero(&y); + testutil_random_fe_non_zero(&y); v = secp256k1_testrand_bits(15); /* Test that fe_add_int is equivalent to fe_set_int + fe_add. */ secp256k1_fe_set_int(&q, v); /* q = v */ @@ -3152,14 +3152,14 @@ static void run_fe_mul(void) { int i; for (i = 0; i < 100 * COUNT; ++i) { secp256k1_fe a, b, c, d; - random_fe(&a); - random_fe_magnitude(&a, 8); - random_fe(&b); - random_fe_magnitude(&b, 8); - random_fe_test(&c); - random_fe_magnitude(&c, 8); - random_fe_test(&d); - random_fe_magnitude(&d, 8); + testutil_random_fe(&a); + testutil_random_fe_magnitude(&a, 8); + testutil_random_fe(&b); + testutil_random_fe_magnitude(&b, 8); + testutil_random_fe_test(&c); + testutil_random_fe_magnitude(&c, 8); + testutil_random_fe_test(&d); + testutil_random_fe_magnitude(&d, 8); test_fe_mul(&a, &a, 1); test_fe_mul(&c, &c, 1); test_fe_mul(&a, &b, 0); @@ -3181,7 +3181,7 @@ static void run_sqr(void) { secp256k1_fe_normalize(&x); /* Check that (x+y)*(x-y) = x^2 - y*2 for some random values y */ - random_fe_test(&y); + testutil_random_fe_test(&y); lhs = x; secp256k1_fe_add(&lhs, &y); /* lhs = x+y */ @@ -3235,7 +3235,7 @@ static void run_sqrt(void) { int j; random_fe_non_square(&ns); for (j = 0; j < COUNT; j++) { - random_fe(&x); + testutil_random_fe(&x); secp256k1_fe_sqr(&s, &x); CHECK(secp256k1_fe_is_square_var(&s)); test_sqrt(&s, &x); @@ -3676,7 +3676,7 @@ static void test_ge(void) { for (i = 0; i < runs; i++) { int j, k; secp256k1_ge g; - random_ge_test(&g); + testutil_random_ge_test(&g); if (i >= runs - 2) { secp256k1_ge_mul_lambda(&g, &ge[1]); CHECK(!secp256k1_ge_eq_var(&g, &ge[1])); @@ -3689,15 +3689,15 @@ static void test_ge(void) { secp256k1_ge_neg(&ge[3 + 4 * i], &g); secp256k1_ge_neg(&ge[4 + 4 * i], &g); secp256k1_gej_set_ge(&gej[1 + 4 * i], &ge[1 + 4 * i]); - random_ge_jacobian_test(&gej[2 + 4 * i], &ge[2 + 4 * i]); + testutil_random_ge_jacobian_test(&gej[2 + 4 * i], &ge[2 + 4 * i]); secp256k1_gej_set_ge(&gej[3 + 4 * i], &ge[3 + 4 * i]); - random_ge_jacobian_test(&gej[4 + 4 * i], &ge[4 + 4 * i]); + testutil_random_ge_jacobian_test(&gej[4 + 4 * i], &ge[4 + 4 * i]); for (j = 0; j < 4; j++) { - random_ge_x_magnitude(&ge[1 + j + 4 * i]); - random_ge_y_magnitude(&ge[1 + j + 4 * i]); - random_gej_x_magnitude(&gej[1 + j + 4 * i]); - random_gej_y_magnitude(&gej[1 + j + 4 * i]); - random_gej_z_magnitude(&gej[1 + j + 4 * i]); + testutil_random_ge_x_magnitude(&ge[1 + j + 4 * i]); + testutil_random_ge_y_magnitude(&ge[1 + j + 4 * i]); + testutil_random_gej_x_magnitude(&gej[1 + j + 4 * i]); + testutil_random_gej_y_magnitude(&gej[1 + j + 4 * i]); + testutil_random_gej_z_magnitude(&gej[1 + j + 4 * i]); } for (j = 0; j < 4; ++j) { @@ -3712,14 +3712,14 @@ static void test_ge(void) { } /* Generate random zf, and zfi2 = 1/zf^2, zfi3 = 1/zf^3 */ - random_fe_non_zero_test(&zf); - random_fe_magnitude(&zf, 8); + testutil_random_fe_non_zero_test(&zf); + testutil_random_fe_magnitude(&zf, 8); secp256k1_fe_inv_var(&zfi3, &zf); secp256k1_fe_sqr(&zfi2, &zfi3); secp256k1_fe_mul(&zfi3, &zfi3, &zfi2); /* Generate random r */ - random_fe_non_zero_test(&r); + testutil_random_fe_non_zero_test(&r); for (i1 = 0; i1 < 1 + 4 * runs; i1++) { int i2; @@ -3749,8 +3749,8 @@ static void test_ge(void) { secp256k1_ge ge2_zfi = ge[i2]; /* the second term with x and y rescaled for z = 1/zf */ secp256k1_fe_mul(&ge2_zfi.x, &ge2_zfi.x, &zfi2); secp256k1_fe_mul(&ge2_zfi.y, &ge2_zfi.y, &zfi3); - random_ge_x_magnitude(&ge2_zfi); - random_ge_y_magnitude(&ge2_zfi); + testutil_random_ge_x_magnitude(&ge2_zfi); + testutil_random_ge_y_magnitude(&ge2_zfi); secp256k1_gej_add_zinv_var(&resj, &gej[i1], &ge2_zfi, &zf); CHECK(secp256k1_gej_eq_ge_var(&resj, &ref)); } @@ -3826,7 +3826,7 @@ static void test_ge(void) { secp256k1_ge_set_all_gej_var(ge_set_all, gej, 4 * runs + 1); for (i = 0; i < 4 * runs + 1; i++) { secp256k1_fe s; - random_fe_non_zero(&s); + testutil_random_fe_non_zero(&s); secp256k1_gej_rescale(&gej[i], &s); CHECK(secp256k1_gej_eq_ge_var(&gej[i], &ge_set_all[i])); } @@ -3859,7 +3859,7 @@ static void test_ge(void) { /* Test batch gej -> ge conversion with many infinities. */ for (i = 0; i < 4 * runs + 1; i++) { int odd; - random_ge_test(&ge[i]); + testutil_random_ge_test(&ge[i]); odd = secp256k1_fe_is_odd(&ge[i].x); CHECK(odd == 0 || odd == 1); /* randomly set half the points to infinity */ @@ -3896,7 +3896,7 @@ static void test_intialized_inf(void) { secp256k1_fe zinv; /* Test that adding P+(-P) results in a fully initialized infinity*/ - random_ge_test(&p); + testutil_random_ge_test(&p); secp256k1_gej_set_ge(&pj, &p); secp256k1_gej_neg(&npj, &pj); @@ -4009,14 +4009,14 @@ static void run_gej(void) { secp256k1_gej_set_infinity(&b); test_gej_cmov(&a, &b); - random_gej_test(&a); + testutil_random_gej_test(&a); test_gej_cmov(&a, &b); test_gej_cmov(&b, &a); b = a; test_gej_cmov(&a, &b); - random_gej_test(&b); + testutil_random_gej_test(&b); test_gej_cmov(&a, &b); test_gej_cmov(&b, &a); } @@ -4024,12 +4024,12 @@ static void run_gej(void) { /* Tests for secp256k1_gej_eq_var */ for (i = 0; i < COUNT; i++) { secp256k1_fe fe; - random_gej_test(&a); - random_gej_test(&b); + testutil_random_gej_test(&a); + testutil_random_gej_test(&b); CHECK(!secp256k1_gej_eq_var(&a, &b)); b = a; - random_fe_non_zero_test(&fe); + testutil_random_fe_non_zero_test(&fe); secp256k1_gej_rescale(&a, &fe); CHECK(secp256k1_gej_eq_var(&a, &b)); } @@ -4046,7 +4046,7 @@ static void test_ec_combine(void) { int i; for (i = 1; i <= 6; i++) { secp256k1_scalar s; - random_scalar_order_test(&s); + testutil_random_scalar_order_test(&s); secp256k1_scalar_add(&sum, &sum, &s); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &Qj, &s); secp256k1_ge_set_gej(&Q, &Qj); @@ -4106,7 +4106,7 @@ static void run_group_decompress(void) { int i; for (i = 0; i < COUNT * 4; i++) { secp256k1_fe fe; - random_fe_test(&fe); + testutil_random_fe_test(&fe); test_group_decompress(&fe); } } @@ -4254,7 +4254,7 @@ static void test_point_times_order(const secp256k1_gej *point) { secp256k1_ge res3; unsigned char pub[65]; size_t psize = 65; - random_scalar_order_test(&x); + testutil_random_scalar_order_test(&x); secp256k1_scalar_negate(&nx, &x); secp256k1_ecmult(&res1, point, &x, &x); /* calc res1 = x * point + x * G; */ secp256k1_ecmult(&res2, point, &nx, &nx); /* calc res2 = (order - x) * point + (order - x) * G; */ @@ -4315,13 +4315,13 @@ static void test_ecmult_target(const secp256k1_scalar* target, int mode) { secp256k1_gej pj, p1j, p2j, ptj; /* Generate random n1,n2 such that n1+n2 = -target. */ - random_scalar_order_test(&n1); + testutil_random_scalar_order_test(&n1); secp256k1_scalar_add(&n2, &n1, target); secp256k1_scalar_negate(&n2, &n2); /* Generate a random input point. */ if (mode != 0) { - random_ge_test(&p); + testutil_random_ge_test(&p); secp256k1_gej_set_ge(&pj, &p); } @@ -4413,8 +4413,8 @@ static void ecmult_const_commutativity(void) { secp256k1_gej res2; secp256k1_ge mid1; secp256k1_ge mid2; - random_scalar_order_test(&a); - random_scalar_order_test(&b); + testutil_random_scalar_order_test(&a); + testutil_random_scalar_order_test(&b); secp256k1_ecmult_const(&res1, &secp256k1_ge_const_g, &a); secp256k1_ecmult_const(&res2, &secp256k1_ge_const_g, &b); @@ -4435,9 +4435,9 @@ static void ecmult_const_mult_zero_one(void) { secp256k1_ge point; secp256k1_ge inf; - random_scalar_order_test(&s); + testutil_random_scalar_order_test(&s); secp256k1_scalar_negate(&negone, &secp256k1_scalar_one); - random_ge_test(&point); + testutil_random_ge_test(&point); secp256k1_ge_set_infinity(&inf); /* 0*point */ @@ -4490,7 +4490,7 @@ static void ecmult_const_edges(void) { secp256k1_scalar_add(&q, &q, &scalars_near_split_bounds[i - 1]); secp256k1_scalar_add(&q, &q, &scalars_near_split_bounds[i - 1]); } - random_ge_test(&point); + testutil_random_ge_test(&point); secp256k1_ecmult_const(&res, &point, &q); ecmult_const_check_result(&point, &q, &res); } @@ -4507,12 +4507,12 @@ static void ecmult_const_mult_xonly(void) { secp256k1_scalar q; int res; /* Random base point. */ - random_ge_test(&base); + testutil_random_ge_test(&base); /* Random scalar to multiply it with. */ - random_scalar_order_test(&q); + testutil_random_scalar_order_test(&q); /* If i is odd, n=d*base.x for random non-zero d */ if (i & 1) { - random_fe_non_zero_test(&d); + testutil_random_fe_non_zero_test(&d); secp256k1_fe_mul(&n, &base.x, &d); } else { n = base.x; @@ -4534,14 +4534,14 @@ static void ecmult_const_mult_xonly(void) { secp256k1_fe x, n, d, r; int res; secp256k1_scalar q; - random_scalar_order_test(&q); + testutil_random_scalar_order_test(&q); /* Generate random X coordinate not on the curve. */ do { - random_fe_test(&x); + testutil_random_fe_test(&x); } while (secp256k1_ge_x_on_curve_var(&x)); /* If i is odd, n=d*x for random non-zero d. */ if (i & 1) { - random_fe_non_zero_test(&d); + testutil_random_fe_non_zero_test(&d); secp256k1_fe_mul(&n, &x, &d); } else { n = x; @@ -4624,10 +4624,10 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi for (ncount = 0; ncount < COUNT; ncount++) { secp256k1_ge ptg; secp256k1_gej ptgj; - random_scalar_order(&sc[0]); - random_scalar_order(&sc[1]); + testutil_random_scalar_order(&sc[0]); + testutil_random_scalar_order(&sc[1]); - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); secp256k1_gej_set_ge(&ptgj, &ptg); pt[0] = ptg; pt[1] = secp256k1_ge_const_g; @@ -4664,7 +4664,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi for (j = 0; j < 3; j++) { for (i = 0; i < 32; i++) { - random_scalar_order(&sc[i]); + testutil_random_scalar_order(&sc[i]); secp256k1_ge_set_infinity(&pt[i]); } CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, sizes[j])); @@ -4673,7 +4673,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi for (j = 0; j < 3; j++) { for (i = 0; i < 32; i++) { - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); pt[i] = ptg; secp256k1_scalar_set_int(&sc[i], 0); } @@ -4682,9 +4682,9 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi } for (j = 0; j < 3; j++) { - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); for (i = 0; i < 16; i++) { - random_scalar_order(&sc[2*i]); + testutil_random_scalar_order(&sc[2*i]); secp256k1_scalar_negate(&sc[2*i + 1], &sc[2*i]); pt[2 * i] = ptg; pt[2 * i + 1] = ptg; @@ -4693,9 +4693,9 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, sizes[j])); CHECK(secp256k1_gej_is_infinity(&r)); - random_scalar_order(&sc[0]); + testutil_random_scalar_order(&sc[0]); for (i = 0; i < 16; i++) { - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); sc[2*i] = sc[0]; sc[2*i+1] = sc[0]; @@ -4707,13 +4707,13 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi CHECK(secp256k1_gej_is_infinity(&r)); } - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); secp256k1_scalar_set_int(&sc[0], 0); pt[0] = ptg; for (i = 1; i < 32; i++) { pt[i] = ptg; - random_scalar_order(&sc[i]); + testutil_random_scalar_order(&sc[i]); secp256k1_scalar_add(&sc[0], &sc[0], &sc[i]); secp256k1_scalar_negate(&sc[i], &sc[i]); } @@ -4727,11 +4727,11 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi size_t i; secp256k1_gej_set_infinity(&r); - random_scalar_order(&sc[0]); + testutil_random_scalar_order(&sc[0]); for (i = 0; i < 20; i++) { secp256k1_ge ptg; sc[i] = sc[0]; - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); pt[i] = ptg; secp256k1_gej_add_ge_var(&r, &r, &pt[i], NULL); } @@ -4749,9 +4749,9 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_scalar rs; secp256k1_scalar_set_int(&rs, 0); - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); for (i = 0; i < 20; i++) { - random_scalar_order(&sc[i]); + testutil_random_scalar_order(&sc[i]); pt[i] = ptg; secp256k1_scalar_add(&rs, &rs, &sc[i]); } @@ -4764,8 +4764,8 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi /* Sanity check that zero scalars don't cause problems */ for (ncount = 0; ncount < 20; ncount++) { - random_scalar_order(&sc[ncount]); - random_ge_test(&pt[ncount]); + testutil_random_scalar_order(&sc[ncount]); + testutil_random_ge_test(&pt[ncount]); } secp256k1_scalar_clear(&sc[0]); @@ -4786,7 +4786,7 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi secp256k1_ge ptg; secp256k1_gej ptgj; - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); secp256k1_gej_set_ge(&ptgj, &ptg); for(t0i = 0; t0i < TOP; t0i++) { @@ -4888,11 +4888,11 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { if (g_nonzero) { /* If g_nonzero, set g_scalar to nonzero value r. */ - random_scalar_order_test(&g_scalar); + testutil_random_scalar_order_test(&g_scalar); if (!nonzero_result) { /* If expected=0 is desired, add a (a*r, -(1/a)*g) term to compensate. */ CHECK(num_nonzero > filled); - random_scalar_order_test(&sc_tmp); + testutil_random_scalar_order_test(&sc_tmp); secp256k1_scalar_mul(&scalars[filled], &sc_tmp, &g_scalar); secp256k1_scalar_inverse_var(&sc_tmp, &sc_tmp); secp256k1_scalar_negate(&sc_tmp, &sc_tmp); @@ -4904,8 +4904,8 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { if (nonzero_result && filled < num_nonzero) { /* If a nonzero result is desired, and there is space, add a random nonzero term. */ - random_scalar_order_test(&scalars[filled]); - random_ge_test(&ge_tmp); + testutil_random_scalar_order_test(&scalars[filled]); + testutil_random_ge_test(&ge_tmp); secp256k1_gej_set_ge(&gejs[filled], &ge_tmp); ++filled; } @@ -4926,10 +4926,10 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { while (filled < num) { if (secp256k1_testrand_bits(1)) { secp256k1_gej_set_infinity(&gejs[filled]); - random_scalar_order_test(&scalars[filled]); + testutil_random_scalar_order_test(&scalars[filled]); } else { secp256k1_scalar_set_int(&scalars[filled], 0); - random_ge_test(&ge_tmp); + testutil_random_ge_test(&ge_tmp); secp256k1_gej_set_ge(&gejs[filled], &ge_tmp); } ++filled; @@ -4963,7 +4963,7 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { } /* Transform the last input: a*P -> (v*a) * ((1/v)*P). */ CHECK(num_nonzero >= 1); - random_scalar_order_test(&v); + testutil_random_scalar_order_test(&v); secp256k1_scalar_inverse(&iv, &v); secp256k1_scalar_mul(&scalars[num_nonzero - 1], &scalars[num_nonzero - 1], &v); secp256k1_ecmult(&gejs[num_nonzero - 1], &gejs[num_nonzero - 1], &iv, NULL); @@ -5002,8 +5002,8 @@ static void test_ecmult_multi_batch_single(secp256k1_ecmult_multi_func ecmult_mu ecmult_multi_data data; secp256k1_scratch *scratch_empty; - random_ge_test(&pt); - random_scalar_order(&sc); + testutil_random_ge_test(&pt); + testutil_random_scalar_order(&sc); data.sc = ≻ data.pt = &pt; @@ -5128,15 +5128,15 @@ static void test_ecmult_multi_batching(void) { secp256k1_gej_set_infinity(&r2); /* Get random scalars and group elements and compute result */ - random_scalar_order(&scG); + testutil_random_scalar_order(&scG); secp256k1_ecmult(&r2, &r2, &secp256k1_scalar_zero, &scG); for(i = 0; i < n_points; i++) { secp256k1_ge ptg; secp256k1_gej ptgj; - random_ge_test(&ptg); + testutil_random_ge_test(&ptg); secp256k1_gej_set_ge(&ptgj, &ptg); pt[i] = ptg; - random_scalar_order(&sc[i]); + testutil_random_scalar_order(&sc[i]); secp256k1_ecmult(&ptgj, &ptgj, &sc[i], NULL); secp256k1_gej_add_var(&r2, &r2, &ptgj, NULL); } @@ -5348,7 +5348,7 @@ static void run_wnaf(void) { test_fixed_wnaf_small(); /* Random tests */ for (i = 0; i < COUNT; i++) { - random_scalar_order(&n); + testutil_random_scalar_order(&n); test_wnaf(&n, 4+(i%10)); test_fixed_wnaf(&n, 4 + (i % 10)); } @@ -5529,7 +5529,7 @@ static void test_ecmult_gen_blind(void) { secp256k1_gej pgej2; secp256k1_ge p; secp256k1_ge pge; - random_scalar_order_test(&key); + testutil_random_scalar_order_test(&key); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &pgej, &key); secp256k1_testrand256(seed32); b = CTX->ecmult_gen_ctx.scalar_offset; @@ -5625,7 +5625,7 @@ static void run_endomorphism_tests(void) { for (i = 0; i < 100U * COUNT; ++i) { secp256k1_scalar full; - random_scalar_order_test(&full); + testutil_random_scalar_order_test(&full); test_scalar_split(&full); } for (i = 0; i < sizeof(scalars_near_split_bounds) / sizeof(scalars_near_split_bounds[0]); ++i) { @@ -6211,7 +6211,7 @@ static void run_eckey_negate_test(void) { unsigned char seckey[32]; unsigned char seckey_tmp[32]; - random_scalar_order_b32(seckey); + testutil_random_scalar_order_b32(seckey); memcpy(seckey_tmp, seckey, 32); /* Verify negation changes the key and changes it back */ @@ -6235,7 +6235,7 @@ static void run_eckey_negate_test(void) { /* Negating an overflowing seckey fails and the seckey is zeroed. In this * test, the seckey has 16 random bytes to ensure that ec_seckey_negate * doesn't just set seckey to a constant value in case of failure. */ - random_scalar_order_b32(seckey); + testutil_random_scalar_order_b32(seckey); memset(seckey, 0xFF, 16); memset(seckey_tmp, 0, 32); CHECK(secp256k1_ec_seckey_negate(CTX, seckey) == 0); @@ -6245,7 +6245,7 @@ static void run_eckey_negate_test(void) { static void random_sign(secp256k1_scalar *sigr, secp256k1_scalar *sigs, const secp256k1_scalar *key, const secp256k1_scalar *msg, int *recid) { secp256k1_scalar nonce; do { - random_scalar_order_test(&nonce); + testutil_random_scalar_order_test(&nonce); } while(!secp256k1_ecdsa_sig_sign(&CTX->ecmult_gen_ctx, sigr, sigs, key, msg, &nonce, recid)); } @@ -6257,8 +6257,8 @@ static void test_ecdsa_sign_verify(void) { secp256k1_scalar sigr, sigs; int getrec; int recid; - random_scalar_order_test(&msg); - random_scalar_order_test(&key); + testutil_random_scalar_order_test(&msg); + testutil_random_scalar_order_test(&key); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &pubj, &key); secp256k1_ge_set_gej(&pub, &pubj); getrec = secp256k1_testrand_bits(1); @@ -6354,8 +6354,8 @@ static void test_ecdsa_end_to_end(void) { /* Generate a random key and message. */ { secp256k1_scalar msg, key; - random_scalar_order_test(&msg); - random_scalar_order_test(&key); + testutil_random_scalar_order_test(&msg); + testutil_random_scalar_order_test(&key); secp256k1_scalar_get_b32(privkey, &key); secp256k1_scalar_get_b32(message, &msg); } diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 5843b3e1f5..0138f224f1 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -171,7 +171,7 @@ static void test_exhaustive_ecmult(const secp256k1_ge *group, const secp256k1_ge CHECK(secp256k1_fe_equal(&tmpf, &group[(i * j) % EXHAUSTIVE_TEST_ORDER].x)); /* Test secp256k1_ecmult_const_xonly with all curve X coordinates, with random xd. */ - random_fe_non_zero(&xd); + testutil_random_fe_non_zero(&xd); secp256k1_fe_mul(&xn, &xd, &group[i].x); ret = secp256k1_ecmult_const_xonly(&tmpf, &xn, &xd, &ng, 0); CHECK(ret); @@ -408,7 +408,7 @@ int main(int argc, char** argv) { /* Set a different random z-value for each Jacobian point, except z=1 is used in the last iteration. */ secp256k1_fe z; - random_fe(&z); + testutil_random_fe(&z); secp256k1_gej_rescale(&groupj[i], &z); } diff --git a/src/testutil.h b/src/testutil.h index c4c5e07776..cb33a48596 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -11,7 +11,7 @@ #include "testrand.h" #include "util.h" -static void random_fe(secp256k1_fe *x) { +static void testutil_random_fe(secp256k1_fe *x) { unsigned char bin[32]; do { secp256k1_testrand256(bin); @@ -21,13 +21,13 @@ static void random_fe(secp256k1_fe *x) { } while(1); } -static void random_fe_non_zero(secp256k1_fe *nz) { +static void testutil_random_fe_non_zero(secp256k1_fe *nz) { do { - random_fe(nz); + testutil_random_fe(nz); } while (secp256k1_fe_is_zero(nz)); } -static void random_fe_magnitude(secp256k1_fe *fe, int m) { +static void testutil_random_fe_magnitude(secp256k1_fe *fe, int m) { secp256k1_fe zero; int n = secp256k1_testrand_int(m + 1); secp256k1_fe_normalize(fe); @@ -43,7 +43,7 @@ static void random_fe_magnitude(secp256k1_fe *fe, int m) { #endif } -static void random_fe_test(secp256k1_fe *x) { +static void testutil_random_fe_test(secp256k1_fe *x) { unsigned char bin[32]; do { secp256k1_testrand256_test(bin); @@ -53,36 +53,36 @@ static void random_fe_test(secp256k1_fe *x) { } while(1); } -static void random_fe_non_zero_test(secp256k1_fe *fe) { +static void testutil_random_fe_non_zero_test(secp256k1_fe *fe) { do { - random_fe_test(fe); + testutil_random_fe_test(fe); } while(secp256k1_fe_is_zero(fe)); } -static void random_ge_x_magnitude(secp256k1_ge *ge) { - random_fe_magnitude(&ge->x, SECP256K1_GE_X_MAGNITUDE_MAX); +static void testutil_random_ge_x_magnitude(secp256k1_ge *ge) { + testutil_random_fe_magnitude(&ge->x, SECP256K1_GE_X_MAGNITUDE_MAX); } -static void random_ge_y_magnitude(secp256k1_ge *ge) { - random_fe_magnitude(&ge->y, SECP256K1_GE_Y_MAGNITUDE_MAX); +static void testutil_random_ge_y_magnitude(secp256k1_ge *ge) { + testutil_random_fe_magnitude(&ge->y, SECP256K1_GE_Y_MAGNITUDE_MAX); } -static void random_gej_x_magnitude(secp256k1_gej *gej) { - random_fe_magnitude(&gej->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); +static void testutil_random_gej_x_magnitude(secp256k1_gej *gej) { + testutil_random_fe_magnitude(&gej->x, SECP256K1_GEJ_X_MAGNITUDE_MAX); } -static void random_gej_y_magnitude(secp256k1_gej *gej) { - random_fe_magnitude(&gej->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); +static void testutil_random_gej_y_magnitude(secp256k1_gej *gej) { + testutil_random_fe_magnitude(&gej->y, SECP256K1_GEJ_Y_MAGNITUDE_MAX); } -static void random_gej_z_magnitude(secp256k1_gej *gej) { - random_fe_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); +static void testutil_random_gej_z_magnitude(secp256k1_gej *gej) { + testutil_random_fe_magnitude(&gej->z, SECP256K1_GEJ_Z_MAGNITUDE_MAX); } -static void random_ge_test(secp256k1_ge *ge) { +static void testutil_random_ge_test(secp256k1_ge *ge) { secp256k1_fe fe; do { - random_fe_test(&fe); + testutil_random_fe_test(&fe); if (secp256k1_ge_set_xo_var(ge, &fe, secp256k1_testrand_bits(1))) { secp256k1_fe_normalize(&ge->y); break; @@ -91,9 +91,9 @@ static void random_ge_test(secp256k1_ge *ge) { ge->infinity = 0; } -static void random_ge_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { +static void testutil_random_ge_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) { secp256k1_fe z2, z3; - random_fe_non_zero_test(&gej->z); + testutil_random_fe_non_zero_test(&gej->z); secp256k1_fe_sqr(&z2, &gej->z); secp256k1_fe_mul(&z3, &z2, &gej->z); secp256k1_fe_mul(&gej->x, &ge->x, &z2); @@ -101,13 +101,13 @@ static void random_ge_jacobian_test(secp256k1_gej *gej, const secp256k1_ge *ge) gej->infinity = ge->infinity; } -static void random_gej_test(secp256k1_gej *gej) { +static void testutil_random_gej_test(secp256k1_gej *gej) { secp256k1_ge ge; - random_ge_test(&ge); - random_ge_jacobian_test(gej, &ge); + testutil_random_ge_test(&ge); + testutil_random_ge_jacobian_test(gej, &ge); } -static void random_scalar_order_test(secp256k1_scalar *num) { +static void testutil_random_scalar_order_test(secp256k1_scalar *num) { do { unsigned char b32[32]; int overflow = 0; @@ -120,7 +120,7 @@ static void random_scalar_order_test(secp256k1_scalar *num) { } while(1); } -static void random_scalar_order(secp256k1_scalar *num) { +static void testutil_random_scalar_order(secp256k1_scalar *num) { do { unsigned char b32[32]; int overflow = 0; @@ -133,9 +133,9 @@ static void random_scalar_order(secp256k1_scalar *num) { } while(1); } -static void random_scalar_order_b32(unsigned char *b32) { +static void testutil_random_scalar_order_b32(unsigned char *b32) { secp256k1_scalar num; - random_scalar_order(&num); + testutil_random_scalar_order(&num); secp256k1_scalar_get_b32(b32, &num); } From e73f6f8fd9158a044c6fb22653105446f3542bb0 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 27 May 2024 03:08:07 +0200 Subject: [PATCH 373/557] tests: refactor: drop `secp256k1_` prefix from testrand.h functions The rename was done with the following command: $ sed -i 's/secp256k1_testrand/testrand/g' $(git grep -l secp256k1_testrand) --- src/modules/ellswift/tests_impl.h | 28 ++-- src/modules/extrakeys/tests_impl.h | 36 ++--- src/modules/recovery/tests_impl.h | 4 +- .../schnorrsig/tests_exhaustive_impl.h | 6 +- src/modules/schnorrsig/tests_impl.h | 50 +++--- src/testrand.h | 22 +-- src/testrand_impl.h | 42 ++--- src/tests.c | 146 +++++++++--------- src/tests_exhaustive.c | 6 +- src/testutil.h | 12 +- 10 files changed, 176 insertions(+), 176 deletions(-) diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index dc881ae524..ed5658f34c 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -231,7 +231,7 @@ void run_ellswift_tests(void) { /* Generate random public key and random randomizer. */ testutil_random_ge_test(&g); secp256k1_pubkey_save(&pubkey, &g); - secp256k1_testrand256(rnd32); + testrand256(rnd32); /* Convert the public key to ElligatorSwift and back. */ secp256k1_ellswift_encode(CTX, ell64, &pubkey, rnd32); secp256k1_ellswift_decode(CTX, &pubkey2, ell64); @@ -249,7 +249,7 @@ void run_ellswift_tests(void) { unsigned char ell64[64]; int ret; /* Generate random secret key and random randomizer. */ - if (i & 1) secp256k1_testrand256_test(auxrnd32); + if (i & 1) testrand256_test(auxrnd32); testutil_random_scalar_order_test(&sec); secp256k1_scalar_get_b32(sec32, &sec); /* Construct ElligatorSwift-encoded public keys for that key. */ @@ -274,8 +274,8 @@ void run_ellswift_tests(void) { testutil_random_scalar_order_test(&sec); secp256k1_scalar_get_b32(sec32, &sec); /* Generate random ElligatorSwift encoding for the remote key and decode it. */ - secp256k1_testrand256_test(ell64); - secp256k1_testrand256_test(ell64 + 32); + testrand256_test(ell64); + testrand256_test(ell64 + 32); secp256k1_ellswift_decode(CTX, &pub, ell64); secp256k1_pubkey_load(CTX, &dec, &pub); secp256k1_gej_set_ge(&decj, &dec); @@ -313,14 +313,14 @@ void run_ellswift_tests(void) { data = NULL; } else { hash_function = secp256k1_ellswift_xdh_hash_function_prefix; - secp256k1_testrand256_test(prefix64); - secp256k1_testrand256_test(prefix64 + 32); + testrand256_test(prefix64); + testrand256_test(prefix64 + 32); data = prefix64; } /* Generate random secret keys and random randomizers. */ - secp256k1_testrand256_test(auxrnd32a); - secp256k1_testrand256_test(auxrnd32b); + testrand256_test(auxrnd32a); + testrand256_test(auxrnd32b); testutil_random_scalar_order_test(&seca); /* Draw secb uniformly at random to make sure that the secret keys * differ */ @@ -349,13 +349,13 @@ void run_ellswift_tests(void) { /* Verify that the shared secret doesn't match if other side's public key is incorrect. */ /* For A (using a bad public key for B): */ memcpy(ell64b_bad, ell64b, sizeof(ell64a_bad)); - secp256k1_testrand_flip(ell64b_bad, sizeof(ell64b_bad)); + testrand_flip(ell64b_bad, sizeof(ell64b_bad)); ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b_bad, sec32a, 0, hash_function, data); CHECK(ret); /* Mismatching encodings don't get detected by secp256k1_ellswift_xdh. */ CHECK(secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); /* For B (using a bad public key for A): */ memcpy(ell64a_bad, ell64a, sizeof(ell64a_bad)); - secp256k1_testrand_flip(ell64a_bad, sizeof(ell64a_bad)); + testrand_flip(ell64a_bad, sizeof(ell64a_bad)); ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a_bad, ell64b, sec32b, 1, hash_function, data); CHECK(ret); CHECK(secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); @@ -363,12 +363,12 @@ void run_ellswift_tests(void) { /* Verify that the shared secret doesn't match if the private key is incorrect. */ /* For A: */ memcpy(sec32a_bad, sec32a, sizeof(sec32a_bad)); - secp256k1_testrand_flip(sec32a_bad, sizeof(sec32a_bad)); + testrand_flip(sec32a_bad, sizeof(sec32a_bad)); ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32a_bad, 0, hash_function, data); CHECK(!ret || secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); /* For B: */ memcpy(sec32b_bad, sec32b, sizeof(sec32b_bad)); - secp256k1_testrand_flip(sec32b_bad, sizeof(sec32b_bad)); + testrand_flip(sec32b_bad, sizeof(sec32b_bad)); ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b, sec32b_bad, 1, hash_function, data); CHECK(!ret || secp256k1_memcmp_var(share32_bad, share32b, 32) != 0); @@ -376,7 +376,7 @@ void run_ellswift_tests(void) { /* Verify that the shared secret doesn't match when a different encoding of the same public key is used. */ /* For A (changing B's public key): */ memcpy(auxrnd32b_bad, auxrnd32b, sizeof(auxrnd32b_bad)); - secp256k1_testrand_flip(auxrnd32b_bad, sizeof(auxrnd32b_bad)); + testrand_flip(auxrnd32b_bad, sizeof(auxrnd32b_bad)); ret = secp256k1_ellswift_create(CTX, ell64b_bad, sec32b, auxrnd32b_bad); CHECK(ret); ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a, ell64b_bad, sec32a, 0, hash_function, data); @@ -384,7 +384,7 @@ void run_ellswift_tests(void) { CHECK(secp256k1_memcmp_var(share32_bad, share32a, 32) != 0); /* For B (changing A's public key): */ memcpy(auxrnd32a_bad, auxrnd32a, sizeof(auxrnd32a_bad)); - secp256k1_testrand_flip(auxrnd32a_bad, sizeof(auxrnd32a_bad)); + testrand_flip(auxrnd32a_bad, sizeof(auxrnd32a_bad)); ret = secp256k1_ellswift_create(CTX, ell64a_bad, sec32a, auxrnd32a_bad); CHECK(ret); ret = secp256k1_ellswift_xdh(CTX, share32_bad, ell64a_bad, ell64b, sec32b, 1, hash_function, data); diff --git a/src/modules/extrakeys/tests_impl.h b/src/modules/extrakeys/tests_impl.h index 45521d1742..ab4ef4a74b 100644 --- a/src/modules/extrakeys/tests_impl.h +++ b/src/modules/extrakeys/tests_impl.h @@ -23,9 +23,9 @@ static void test_xonly_pubkey(void) { int pk_parity; int i; - secp256k1_testrand256(sk); + testrand256(sk); memset(ones32, 0xFF, 32); - secp256k1_testrand256(xy_sk); + testrand256(xy_sk); CHECK(secp256k1_ec_pubkey_create(CTX, &pk, sk) == 1); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &xonly_pk, &pk_parity, &pk) == 1); @@ -95,7 +95,7 @@ static void test_xonly_pubkey(void) { * the curve) then xonly_pubkey_parse should fail as well. */ for (i = 0; i < COUNT; i++) { unsigned char rand33[33]; - secp256k1_testrand256(&rand33[1]); + testrand256(&rand33[1]); rand33[0] = SECP256K1_TAG_PUBKEY_EVEN; if (!secp256k1_ec_pubkey_parse(CTX, &pk, rand33, 33)) { memset(&xonly_pk, 1, sizeof(xonly_pk)); @@ -152,8 +152,8 @@ static void test_xonly_pubkey_tweak(void) { int i; memset(overflows, 0xff, sizeof(overflows)); - secp256k1_testrand256(tweak); - secp256k1_testrand256(sk); + testrand256(tweak); + testrand256(sk); CHECK(secp256k1_ec_pubkey_create(CTX, &internal_pk, sk) == 1); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &internal_xonly_pk, &pk_parity, &internal_pk) == 1); @@ -190,7 +190,7 @@ static void test_xonly_pubkey_tweak(void) { /* Invalid pk with a valid tweak */ memset(&internal_xonly_pk, 0, sizeof(internal_xonly_pk)); - secp256k1_testrand256(tweak); + testrand256(tweak); CHECK_ILLEGAL(CTX, secp256k1_xonly_pubkey_tweak_add(CTX, &output_pk, &internal_xonly_pk, tweak)); CHECK(secp256k1_memcmp_var(&output_pk, zeros64, sizeof(output_pk)) == 0); } @@ -209,8 +209,8 @@ static void test_xonly_pubkey_tweak_check(void) { unsigned char tweak[32]; memset(overflows, 0xff, sizeof(overflows)); - secp256k1_testrand256(tweak); - secp256k1_testrand256(sk); + testrand256(tweak); + testrand256(sk); CHECK(secp256k1_ec_pubkey_create(CTX, &internal_pk, sk) == 1); CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &internal_xonly_pk, &pk_parity, &internal_pk) == 1); @@ -256,7 +256,7 @@ static void test_xonly_pubkey_tweak_recursive(void) { unsigned char tweak[N_PUBKEYS - 1][32]; int i; - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_ec_pubkey_create(CTX, &pk[0], sk) == 1); /* Add tweaks */ for (i = 0; i < N_PUBKEYS - 1; i++) { @@ -292,7 +292,7 @@ static void test_keypair(void) { memset(overflows, 0xFF, sizeof(overflows)); /* Test keypair_create */ - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_memcmp_var(zeros96, &keypair, sizeof(keypair)) != 0); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); @@ -311,7 +311,7 @@ static void test_keypair(void) { CHECK(secp256k1_memcmp_var(zeros96, &keypair, sizeof(keypair)) == 0); /* Test keypair_pub */ - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_pub(CTX, &pk, &keypair) == 1); CHECK_ILLEGAL(CTX, secp256k1_keypair_pub(CTX, NULL, &keypair)); @@ -330,7 +330,7 @@ static void test_keypair(void) { CHECK(secp256k1_memcmp_var(&pk, &pk_tmp, sizeof(pk)) == 0); /** Test keypair_xonly_pub **/ - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_xonly_pub(CTX, &xonly_pk, &pk_parity, &keypair) == 1); CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_pub(CTX, NULL, &pk_parity, &keypair)); @@ -353,7 +353,7 @@ static void test_keypair(void) { CHECK(pk_parity == pk_parity_tmp); /* Test keypair_seckey */ - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_sec(CTX, sk_tmp, &keypair) == 1); CHECK_ILLEGAL(CTX, secp256k1_keypair_sec(CTX, NULL, &keypair)); @@ -381,8 +381,8 @@ static void test_keypair_add(void) { int i; CHECK(sizeof(zeros96) == sizeof(keypair)); - secp256k1_testrand256(sk); - secp256k1_testrand256(tweak); + testrand256(sk); + testrand256(tweak); memset(overflows, 0xFF, 32); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); @@ -407,7 +407,7 @@ static void test_keypair_add(void) { for (i = 0; i < COUNT; i++) { secp256k1_scalar scalar_tweak; secp256k1_keypair keypair_tmp; - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); memcpy(&keypair_tmp, &keypair, sizeof(keypair)); /* Because sk may be negated before adding, we need to try with tweak = @@ -423,7 +423,7 @@ static void test_keypair_add(void) { /* Invalid keypair with a valid tweak */ memset(&keypair, 0, sizeof(keypair)); - secp256k1_testrand256(tweak); + testrand256(tweak); CHECK_ILLEGAL(CTX, secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak)); CHECK(secp256k1_memcmp_var(&keypair, zeros96, sizeof(keypair)) == 0); /* Only seckey part of keypair invalid */ @@ -446,7 +446,7 @@ static void test_keypair_add(void) { unsigned char sk32[32]; int pk_parity; - secp256k1_testrand256(tweak); + testrand256(tweak); CHECK(secp256k1_keypair_xonly_pub(CTX, &internal_pk, NULL, &keypair) == 1); CHECK(secp256k1_keypair_xonly_tweak_add(CTX, &keypair, tweak) == 1); CHECK(secp256k1_keypair_xonly_pub(CTX, &output_pk, &pk_parity, &keypair) == 1); diff --git a/src/modules/recovery/tests_impl.h b/src/modules/recovery/tests_impl.h index 78ab6d1a0b..7a28a3ce65 100644 --- a/src/modules/recovery/tests_impl.h +++ b/src/modules/recovery/tests_impl.h @@ -25,7 +25,7 @@ static int recovery_test_nonce_function(unsigned char *nonce32, const unsigned c } /* On the next run, return a valid nonce, but flip a coin as to whether or not to fail signing. */ memset(nonce32, 1, 32); - return secp256k1_testrand_bits(1); + return testrand_bits(1); } static void test_ecdsa_recovery_api(void) { @@ -141,7 +141,7 @@ static void test_ecdsa_recovery_end_to_end(void) { CHECK(secp256k1_memcmp_var(&pubkey, &recpubkey, sizeof(pubkey)) == 0); /* Serialize/destroy/parse signature and verify again. */ CHECK(secp256k1_ecdsa_recoverable_signature_serialize_compact(CTX, sig, &recid, &rsignature[4]) == 1); - sig[secp256k1_testrand_bits(6)] += 1 + secp256k1_testrand_int(255); + sig[testrand_bits(6)] += 1 + testrand_int(255); CHECK(secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &rsignature[4], sig, recid) == 1); CHECK(secp256k1_ecdsa_recoverable_signature_convert(CTX, &signature[4], &rsignature[4]) == 1); CHECK(secp256k1_ecdsa_verify(CTX, &signature[4], message, &pubkey) == 0); diff --git a/src/modules/schnorrsig/tests_exhaustive_impl.h b/src/modules/schnorrsig/tests_exhaustive_impl.h index bc31d81107..601b54975d 100644 --- a/src/modules/schnorrsig/tests_exhaustive_impl.h +++ b/src/modules/schnorrsig/tests_exhaustive_impl.h @@ -104,7 +104,7 @@ static void test_exhaustive_schnorrsig_verify(const secp256k1_context *ctx, cons while (e_count_done < EXHAUSTIVE_TEST_ORDER) { secp256k1_scalar e; unsigned char msg32[32]; - secp256k1_testrand256(msg32); + testrand256(msg32); secp256k1_schnorrsig_challenge(&e, sig64, msg32, sizeof(msg32), pk32); /* Only do work if we hit a challenge we haven't tried before. */ if (!e_done[e]) { @@ -120,7 +120,7 @@ static void test_exhaustive_schnorrsig_verify(const secp256k1_context *ctx, cons expect_valid = actual_k != -1 && s != EXHAUSTIVE_TEST_ORDER && (s == (actual_k + actual_d * e) % EXHAUSTIVE_TEST_ORDER); } else { - secp256k1_testrand256(sig64 + 32); + testrand256(sig64 + 32); expect_valid = 0; } valid = secp256k1_schnorrsig_verify(ctx, sig64, msg32, sizeof(msg32), &pubkeys[d - 1]); @@ -161,7 +161,7 @@ static void test_exhaustive_schnorrsig_sign(const secp256k1_context *ctx, unsign /* Generate random messages until all challenges have been tried. */ while (e_count_done < EXHAUSTIVE_TEST_ORDER) { secp256k1_scalar e; - secp256k1_testrand256(msg32); + testrand256(msg32); secp256k1_schnorrsig_challenge(&e, xonly_pubkey_bytes[k - 1], msg32, sizeof(msg32), xonly_pubkey_bytes[d - 1]); /* Only do work if we hit a challenge we haven't tried before. */ if (!e_done[e]) { diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index 8ada90a87b..aa4fc38270 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -15,7 +15,7 @@ static void nonce_function_bip340_bitflip(unsigned char **args, size_t n_flip, size_t n_bytes, size_t msglen, size_t algolen) { unsigned char nonces[2][32]; CHECK(nonce_function_bip340(nonces[0], args[0], msglen, args[1], args[2], args[3], algolen, args[4]) == 1); - secp256k1_testrand_flip(args[n_flip], n_bytes); + testrand_flip(args[n_flip], n_bytes); CHECK(nonce_function_bip340(nonces[1], args[0], msglen, args[1], args[2], args[3], algolen, args[4]) == 1); CHECK(secp256k1_memcmp_var(nonces[0], nonces[1], 32) != 0); } @@ -50,10 +50,10 @@ static void run_nonce_function_bip340_tests(void) { secp256k1_nonce_function_bip340_sha256_tagged_aux(&sha_optimized); test_sha256_eq(&sha, &sha_optimized); - secp256k1_testrand256(msg); - secp256k1_testrand256(key); - secp256k1_testrand256(pk); - secp256k1_testrand256(aux_rand); + testrand256(msg); + testrand256(key); + testrand256(pk); + testrand256(aux_rand); /* Check that a bitflip in an argument results in different nonces. */ args[0] = msg; @@ -76,12 +76,12 @@ static void run_nonce_function_bip340_tests(void) { CHECK(nonce_function_bip340(nonce, msg, msglen, key, pk, NULL, 0, NULL) == 0); CHECK(nonce_function_bip340(nonce, msg, msglen, key, pk, algo, algolen, NULL) == 1); /* Other algo is fine */ - secp256k1_testrand_bytes_test(algo, algolen); + testrand_bytes_test(algo, algolen); CHECK(nonce_function_bip340(nonce, msg, msglen, key, pk, algo, algolen, NULL) == 1); for (i = 0; i < COUNT; i++) { unsigned char nonce2[32]; - uint32_t offset = secp256k1_testrand_int(msglen - 1); + uint32_t offset = testrand_int(msglen - 1); size_t msglen_tmp = (msglen + offset) % msglen; size_t algolen_tmp; @@ -90,7 +90,7 @@ static void run_nonce_function_bip340_tests(void) { CHECK(secp256k1_memcmp_var(nonce, nonce2, 32) != 0); /* Different algolen gives different nonce */ - offset = secp256k1_testrand_int(algolen - 1); + offset = testrand_int(algolen - 1); algolen_tmp = (algolen + offset) % algolen; CHECK(nonce_function_bip340(nonce2, msg, msglen, key, pk, algo, algolen_tmp, NULL) == 1); CHECK(secp256k1_memcmp_var(nonce, nonce2, 32) != 0); @@ -116,10 +116,10 @@ static void test_schnorrsig_api(void) { secp256k1_schnorrsig_extraparams extraparams = SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT; secp256k1_schnorrsig_extraparams invalid_extraparams = {{ 0 }, NULL, NULL}; - secp256k1_testrand256(sk1); - secp256k1_testrand256(sk2); - secp256k1_testrand256(sk3); - secp256k1_testrand256(msg); + testrand256(sk1); + testrand256(sk2); + testrand256(sk3); + testrand256(msg); CHECK(secp256k1_keypair_create(CTX, &keypairs[0], sk1) == 1); CHECK(secp256k1_keypair_create(CTX, &keypairs[1], sk2) == 1); CHECK(secp256k1_keypair_create(CTX, &keypairs[2], sk3) == 1); @@ -813,8 +813,8 @@ static void test_schnorrsig_sign(void) { secp256k1_schnorrsig_extraparams extraparams = SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT; unsigned char aux_rand[32]; - secp256k1_testrand256(sk); - secp256k1_testrand256(aux_rand); + testrand256(sk); + testrand256(aux_rand); CHECK(secp256k1_keypair_create(CTX, &keypair, sk)); CHECK(secp256k1_keypair_xonly_pub(CTX, &pk, NULL, &keypair)); CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg, &keypair, NULL) == 1); @@ -861,12 +861,12 @@ static void test_schnorrsig_sign_verify(void) { secp256k1_xonly_pubkey pk; secp256k1_scalar s; - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk)); CHECK(secp256k1_keypair_xonly_pub(CTX, &pk, NULL, &keypair)); for (i = 0; i < N_SIGS; i++) { - secp256k1_testrand256(msg[i]); + testrand256(msg[i]); CHECK(secp256k1_schnorrsig_sign32(CTX, sig[i], msg[i], &keypair, NULL)); CHECK(secp256k1_schnorrsig_verify(CTX, sig[i], msg[i], sizeof(msg[i]), &pk)); } @@ -874,19 +874,19 @@ static void test_schnorrsig_sign_verify(void) { { /* Flip a few bits in the signature and in the message and check that * verify and verify_batch (TODO) fail */ - size_t sig_idx = secp256k1_testrand_int(N_SIGS); - size_t byte_idx = secp256k1_testrand_bits(5); - unsigned char xorbyte = secp256k1_testrand_int(254)+1; + size_t sig_idx = testrand_int(N_SIGS); + size_t byte_idx = testrand_bits(5); + unsigned char xorbyte = testrand_int(254)+1; sig[sig_idx][byte_idx] ^= xorbyte; CHECK(!secp256k1_schnorrsig_verify(CTX, sig[sig_idx], msg[sig_idx], sizeof(msg[sig_idx]), &pk)); sig[sig_idx][byte_idx] ^= xorbyte; - byte_idx = secp256k1_testrand_bits(5); + byte_idx = testrand_bits(5); sig[sig_idx][32+byte_idx] ^= xorbyte; CHECK(!secp256k1_schnorrsig_verify(CTX, sig[sig_idx], msg[sig_idx], sizeof(msg[sig_idx]), &pk)); sig[sig_idx][32+byte_idx] ^= xorbyte; - byte_idx = secp256k1_testrand_bits(5); + byte_idx = testrand_bits(5); msg[sig_idx][byte_idx] ^= xorbyte; CHECK(!secp256k1_schnorrsig_verify(CTX, sig[sig_idx], msg[sig_idx], sizeof(msg[sig_idx]), &pk)); msg[sig_idx][byte_idx] ^= xorbyte; @@ -916,9 +916,9 @@ static void test_schnorrsig_sign_verify(void) { { /* Test varying message lengths */ unsigned char msg_large[32 * 8]; - uint32_t msglen = secp256k1_testrand_int(sizeof(msg_large)); + uint32_t msglen = testrand_int(sizeof(msg_large)); for (i = 0; i < sizeof(msg_large); i += 32) { - secp256k1_testrand256(&msg_large[i]); + testrand256(&msg_large[i]); } CHECK(secp256k1_schnorrsig_sign_custom(CTX, sig[0], msg_large, msglen, &keypair, NULL) == 1); CHECK(secp256k1_schnorrsig_verify(CTX, sig[0], msg_large, msglen, &pk) == 1); @@ -942,7 +942,7 @@ static void test_schnorrsig_taproot(void) { unsigned char sig[64]; /* Create output key */ - secp256k1_testrand256(sk); + testrand256(sk); CHECK(secp256k1_keypair_create(CTX, &keypair, sk) == 1); CHECK(secp256k1_keypair_xonly_pub(CTX, &internal_pk, NULL, &keypair) == 1); /* In actual taproot the tweak would be hash of internal_pk */ @@ -952,7 +952,7 @@ static void test_schnorrsig_taproot(void) { CHECK(secp256k1_xonly_pubkey_serialize(CTX, output_pk_bytes, &output_pk) == 1); /* Key spend */ - secp256k1_testrand256(msg); + testrand256(msg); CHECK(secp256k1_schnorrsig_sign32(CTX, sig, msg, &keypair, NULL) == 1); /* Verify key spend */ CHECK(secp256k1_xonly_pubkey_parse(CTX, &output_pk, output_pk_bytes) == 1); diff --git a/src/testrand.h b/src/testrand.h index 721099d039..3c1ed3d45d 100644 --- a/src/testrand.h +++ b/src/testrand.h @@ -12,37 +12,37 @@ /* A non-cryptographic RNG used only for test infrastructure. */ /** Seed the pseudorandom number generator for testing. */ -SECP256K1_INLINE static void secp256k1_testrand_seed(const unsigned char *seed16); +SECP256K1_INLINE static void testrand_seed(const unsigned char *seed16); /** Generate a pseudorandom number in the range [0..2**32-1]. */ -SECP256K1_INLINE static uint32_t secp256k1_testrand32(void); +SECP256K1_INLINE static uint32_t testrand32(void); /** Generate a pseudorandom number in the range [0..2**64-1]. */ -SECP256K1_INLINE static uint64_t secp256k1_testrand64(void); +SECP256K1_INLINE static uint64_t testrand64(void); /** Generate a pseudorandom number in the range [0..2**bits-1]. Bits must be 1 or * more. */ -SECP256K1_INLINE static uint64_t secp256k1_testrand_bits(int bits); +SECP256K1_INLINE static uint64_t testrand_bits(int bits); /** Generate a pseudorandom number in the range [0..range-1]. */ -static uint32_t secp256k1_testrand_int(uint32_t range); +static uint32_t testrand_int(uint32_t range); /** Generate a pseudorandom 32-byte array. */ -static void secp256k1_testrand256(unsigned char *b32); +static void testrand256(unsigned char *b32); /** Generate a pseudorandom 32-byte array with long sequences of zero and one bits. */ -static void secp256k1_testrand256_test(unsigned char *b32); +static void testrand256_test(unsigned char *b32); /** Generate pseudorandom bytes with long sequences of zero and one bits. */ -static void secp256k1_testrand_bytes_test(unsigned char *bytes, size_t len); +static void testrand_bytes_test(unsigned char *bytes, size_t len); /** Flip a single random bit in a byte array */ -static void secp256k1_testrand_flip(unsigned char *b, size_t len); +static void testrand_flip(unsigned char *b, size_t len); /** Initialize the test RNG using (hex encoded) array up to 16 bytes, or randomly if hexseed is NULL. */ -static void secp256k1_testrand_init(const char* hexseed); +static void testrand_init(const char* hexseed); /** Print final test information. */ -static void secp256k1_testrand_finish(void); +static void testrand_finish(void); #endif /* SECP256K1_TESTRAND_H */ diff --git a/src/testrand_impl.h b/src/testrand_impl.h index fe97620435..07564f7f3f 100644 --- a/src/testrand_impl.h +++ b/src/testrand_impl.h @@ -17,7 +17,7 @@ static uint64_t secp256k1_test_state[4]; -SECP256K1_INLINE static void secp256k1_testrand_seed(const unsigned char *seed16) { +SECP256K1_INLINE static void testrand_seed(const unsigned char *seed16) { static const unsigned char PREFIX[19] = "secp256k1 test init"; unsigned char out32[32]; secp256k1_sha256 hash; @@ -40,7 +40,7 @@ SECP256K1_INLINE static uint64_t rotl(const uint64_t x, int k) { return (x << k) | (x >> (64 - k)); } -SECP256K1_INLINE static uint64_t secp256k1_testrand64(void) { +SECP256K1_INLINE static uint64_t testrand64(void) { /* Test-only Xoshiro256++ RNG. See https://prng.di.unimi.it/ */ const uint64_t result = rotl(secp256k1_test_state[0] + secp256k1_test_state[3], 23) + secp256k1_test_state[0]; const uint64_t t = secp256k1_test_state[1] << 17; @@ -53,16 +53,16 @@ SECP256K1_INLINE static uint64_t secp256k1_testrand64(void) { return result; } -SECP256K1_INLINE static uint64_t secp256k1_testrand_bits(int bits) { +SECP256K1_INLINE static uint64_t testrand_bits(int bits) { if (bits == 0) return 0; - return secp256k1_testrand64() >> (64 - bits); + return testrand64() >> (64 - bits); } -SECP256K1_INLINE static uint32_t secp256k1_testrand32(void) { - return secp256k1_testrand64() >> 32; +SECP256K1_INLINE static uint32_t testrand32(void) { + return testrand64() >> 32; } -static uint32_t secp256k1_testrand_int(uint32_t range) { +static uint32_t testrand_int(uint32_t range) { uint32_t mask = 0; uint32_t range_copy; /* Reduce range by 1, changing its meaning to "maximum value". */ @@ -76,15 +76,15 @@ static uint32_t secp256k1_testrand_int(uint32_t range) { } /* Generation loop. */ while (1) { - uint32_t val = secp256k1_testrand64() & mask; + uint32_t val = testrand64() & mask; if (val <= range) return val; } } -static void secp256k1_testrand256(unsigned char *b32) { +static void testrand256(unsigned char *b32) { int i; for (i = 0; i < 4; ++i) { - uint64_t val = secp256k1_testrand64(); + uint64_t val = testrand64(); b32[0] = val; b32[1] = val >> 8; b32[2] = val >> 16; @@ -97,14 +97,14 @@ static void secp256k1_testrand256(unsigned char *b32) { } } -static void secp256k1_testrand_bytes_test(unsigned char *bytes, size_t len) { +static void testrand_bytes_test(unsigned char *bytes, size_t len) { size_t bits = 0; memset(bytes, 0, len); while (bits < len * 8) { int now; uint32_t val; - now = 1 + (secp256k1_testrand_bits(6) * secp256k1_testrand_bits(5) + 16) / 31; - val = secp256k1_testrand_bits(1); + now = 1 + (testrand_bits(6) * testrand_bits(5) + 16) / 31; + val = testrand_bits(1); while (now > 0 && bits < len * 8) { bytes[bits / 8] |= val << (bits % 8); now--; @@ -113,15 +113,15 @@ static void secp256k1_testrand_bytes_test(unsigned char *bytes, size_t len) { } } -static void secp256k1_testrand256_test(unsigned char *b32) { - secp256k1_testrand_bytes_test(b32, 32); +static void testrand256_test(unsigned char *b32) { + testrand_bytes_test(b32, 32); } -static void secp256k1_testrand_flip(unsigned char *b, size_t len) { - b[secp256k1_testrand_int(len)] ^= (1 << secp256k1_testrand_bits(3)); +static void testrand_flip(unsigned char *b, size_t len) { + b[testrand_int(len)] ^= (1 << testrand_bits(3)); } -static void secp256k1_testrand_init(const char* hexseed) { +static void testrand_init(const char* hexseed) { unsigned char seed16[16] = {0}; if (hexseed && strlen(hexseed) != 0) { int pos = 0; @@ -155,12 +155,12 @@ static void secp256k1_testrand_init(const char* hexseed) { } printf("random seed = %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n", seed16[0], seed16[1], seed16[2], seed16[3], seed16[4], seed16[5], seed16[6], seed16[7], seed16[8], seed16[9], seed16[10], seed16[11], seed16[12], seed16[13], seed16[14], seed16[15]); - secp256k1_testrand_seed(seed16); + testrand_seed(seed16); } -static void secp256k1_testrand_finish(void) { +static void testrand_finish(void) { unsigned char run32[32]; - secp256k1_testrand256(run32); + testrand256(run32); printf("random run = %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n", run32[0], run32[1], run32[2], run32[3], run32[4], run32[5], run32[6], run32[7], run32[8], run32[9], run32[10], run32[11], run32[12], run32[13], run32[14], run32[15]); } diff --git a/src/tests.c b/src/tests.c index 9f777642ea..6b401e52c0 100644 --- a/src/tests.c +++ b/src/tests.c @@ -117,9 +117,9 @@ static void run_xoshiro256pp_tests(void) { 0x4C, 0xCC, 0xC1, 0x18, 0xB2, 0xD8, 0x8F, 0xEF, 0x43, 0x26, 0x15, 0x57, 0x37, 0x00, 0xEF, 0x30, }; - secp256k1_testrand_seed(seed16); + testrand_seed(seed16); for (i = 0; i < 17; i++) { - secp256k1_testrand256(buf32); + testrand256(buf32); } CHECK(secp256k1_memcmp_var(buf32, buf32_expected, sizeof(buf32)) == 0); } @@ -492,7 +492,7 @@ static void run_sha256_known_output_tests(void) { CHECK(secp256k1_memcmp_var(out, outputs[i], 32) == 0); /* 2. Run: split the input bytestrings randomly before writing */ if (strlen(inputs[i]) > 0) { - int split = secp256k1_testrand_int(strlen(inputs[i])); + int split = testrand_int(strlen(inputs[i])); secp256k1_sha256_initialize(&hasher); j = repeat[i]; while (j > 0) { @@ -653,7 +653,7 @@ static void run_hmac_sha256_tests(void) { secp256k1_hmac_sha256_finalize(&hasher, out); CHECK(secp256k1_memcmp_var(out, outputs[i], 32) == 0); if (strlen(inputs[i]) > 0) { - int split = secp256k1_testrand_int(strlen(inputs[i])); + int split = testrand_int(strlen(inputs[i])); secp256k1_hmac_sha256_initialize(&hasher, (const unsigned char*)(keys[i]), strlen(keys[i])); secp256k1_hmac_sha256_write(&hasher, (const unsigned char*)(inputs[i]), split); secp256k1_hmac_sha256_write(&hasher, (const unsigned char*)(inputs[i] + split), strlen(inputs[i]) - split); @@ -853,7 +853,7 @@ static void signed30_to_uint16(uint16_t* out, const secp256k1_modinv32_signed30* static void mutate_sign_signed30(secp256k1_modinv32_signed30* x) { int i; for (i = 0; i < 16; ++i) { - int pos = secp256k1_testrand_bits(3); + int pos = testrand_bits(3); if (x->v[pos] > 0 && x->v[pos + 1] <= 0x3fffffff) { x->v[pos] -= 0x40000000; x->v[pos + 1] += 1; @@ -945,7 +945,7 @@ static void mutate_sign_signed62(secp256k1_modinv64_signed62* x) { static const int64_t M62 = (int64_t)(UINT64_MAX >> 2); int i; for (i = 0; i < 8; ++i) { - int pos = secp256k1_testrand_bits(2); + int pos = testrand_bits(2); if (x->v[pos] > 0 && x->v[pos + 1] <= M62) { x->v[pos] -= (M62 + 1); x->v[pos + 1] += 1; @@ -1658,8 +1658,8 @@ static void run_modinv_tests(void) { /* generate random xd and md, so that md is odd, md>1, xd 256) { now = 256 - i; } @@ -2078,7 +2078,7 @@ static void scalar_test(void) { secp256k1_scalar b; int i; /* Test add_bit. */ - int bit = secp256k1_testrand_bits(8); + int bit = testrand_bits(8); secp256k1_scalar_set_int(&b, 1); CHECK(secp256k1_scalar_is_one(&b)); for (i = 0; i < bit; i++) { @@ -3014,7 +3014,7 @@ static void run_field_misc(void) { testutil_random_fe_test(&x); } testutil_random_fe_non_zero(&y); - v = secp256k1_testrand_bits(15); + v = testrand_bits(15); /* Test that fe_add_int is equivalent to fe_set_int + fe_add. */ secp256k1_fe_set_int(&q, v); /* q = v */ z = x; /* z = x */ @@ -3549,7 +3549,7 @@ static void run_inverse_tests(void) /* test 128*count random inputs; half with testrand256_test, half with testrand256 */ for (testrand = 0; testrand <= 1; ++testrand) { for (i = 0; i < 64 * COUNT; ++i) { - (testrand ? secp256k1_testrand256_test : secp256k1_testrand256)(b32); + (testrand ? testrand256_test : testrand256)(b32); secp256k1_scalar_set_b32(&x_scalar, b32, NULL); secp256k1_fe_set_b32_mod(&x_fe, b32); for (var = 0; var <= 1; ++var) { @@ -3615,8 +3615,8 @@ static void test_hsort(size_t element_len) { /* Test hsort with array of random length n */ for (i = 0; i < COUNT; i++) { - int n = secp256k1_testrand_int(NUM); - secp256k1_testrand_bytes_test(elements, n*element_len); + int n = testrand_int(NUM); + testrand_bytes_test(elements, n*element_len); secp256k1_hsort(elements, n, element_len, test_hsort_cmp, &data); test_hsort_is_sorted(elements, n, element_len); } @@ -3806,7 +3806,7 @@ static void test_ge(void) { gej_shuffled[i] = gej[i]; } for (i = 0; i < 4 * runs + 1; i++) { - int swap = i + secp256k1_testrand_int(4 * runs + 1 - i); + int swap = i + testrand_int(4 * runs + 1 - i); if (swap != i) { secp256k1_gej t = gej_shuffled[i]; gej_shuffled[i] = gej_shuffled[swap]; @@ -4857,29 +4857,29 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { int i; /* Which multiplication function to use */ - int fn = secp256k1_testrand_int(3); + int fn = testrand_int(3); secp256k1_ecmult_multi_func ecmult_multi = fn == 0 ? secp256k1_ecmult_multi_var : fn == 1 ? secp256k1_ecmult_strauss_batch_single : secp256k1_ecmult_pippenger_batch_single; /* Simulate exponentially distributed num. */ - int num_bits = 2 + secp256k1_testrand_int(6); + int num_bits = 2 + testrand_int(6); /* Number of (scalar, point) inputs (excluding g). */ - int num = secp256k1_testrand_int((1 << num_bits) + 1); + int num = testrand_int((1 << num_bits) + 1); /* Number of those which are nonzero. */ - int num_nonzero = secp256k1_testrand_int(num + 1); + int num_nonzero = testrand_int(num + 1); /* Whether we're aiming to create an input with nonzero expected result. */ - int nonzero_result = secp256k1_testrand_bits(1); + int nonzero_result = testrand_bits(1); /* Whether we will provide nonzero g multiplicand. In some cases our hand * is forced here based on num_nonzero and nonzero_result. */ int g_nonzero = num_nonzero == 0 ? nonzero_result : num_nonzero == 1 && !nonzero_result ? 1 : - (int)secp256k1_testrand_bits(1); + (int)testrand_bits(1); /* Which g_scalar pointer to pass into ecmult_multi(). */ - const secp256k1_scalar* g_scalar_ptr = (g_nonzero || secp256k1_testrand_bits(1)) ? &g_scalar : NULL; + const secp256k1_scalar* g_scalar_ptr = (g_nonzero || testrand_bits(1)) ? &g_scalar : NULL; /* How many EC multiplications were performed in this function. */ int mults = 0; /* How many randomization steps to apply to the input list. */ - int rands = (int)secp256k1_testrand_bits(3); + int rands = (int)testrand_bits(3); if (rands > num_nonzero) rands = num_nonzero; secp256k1_gej_set_infinity(&expected); @@ -4924,7 +4924,7 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { /* Add entries to scalars,gejs so that there are num of them. All the added entries * either have scalar=0 or point=infinity, so these do not change the expected result. */ while (filled < num) { - if (secp256k1_testrand_bits(1)) { + if (testrand_bits(1)) { secp256k1_gej_set_infinity(&gejs[filled]); testutil_random_scalar_order_test(&scalars[filled]); } else { @@ -4943,7 +4943,7 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { secp256k1_scalar v, iv; /* Shuffle the entries. */ for (j = 0; j < num_nonzero; ++j) { - int k = secp256k1_testrand_int(num_nonzero - j); + int k = testrand_int(num_nonzero - j); if (k != 0) { secp256k1_gej gej = gejs[j]; secp256k1_scalar sc = scalars[j]; @@ -4972,7 +4972,7 @@ static int test_ecmult_multi_random(secp256k1_scratch *scratch) { /* Shuffle all entries (0..num-1). */ for (i = 0; i < num; ++i) { - int j = secp256k1_testrand_int(num - i); + int j = testrand_int(num - i); if (j != 0) { secp256k1_gej gej = gejs[i]; secp256k1_scalar sc = scalars[i]; @@ -5034,7 +5034,7 @@ static void test_secp256k1_pippenger_bucket_window_inv(void) { * for a given scratch space. */ static void test_ecmult_multi_pippenger_max_points(void) { - size_t scratch_size = secp256k1_testrand_bits(8); + size_t scratch_size = testrand_bits(8); size_t max_size = secp256k1_pippenger_scratch_size(secp256k1_pippenger_bucket_window_inv(PIPPENGER_MAX_BUCKET_WINDOW-1)+512, 12); secp256k1_scratch *scratch; size_t n_points_supported; @@ -5531,7 +5531,7 @@ static void test_ecmult_gen_blind(void) { secp256k1_ge pge; testutil_random_scalar_order_test(&key); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &pgej, &key); - secp256k1_testrand256(seed32); + testrand256(seed32); b = CTX->ecmult_gen_ctx.scalar_offset; p = CTX->ecmult_gen_ctx.ge_offset; secp256k1_ecmult_gen_blind(&CTX->ecmult_gen_ctx, seed32); @@ -6261,7 +6261,7 @@ static void test_ecdsa_sign_verify(void) { testutil_random_scalar_order_test(&key); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &pubj, &key); secp256k1_ge_set_gej(&pub, &pubj); - getrec = secp256k1_testrand_bits(1); + getrec = testrand_bits(1); /* The specific way in which this conditional is written sidesteps a potential bug in clang. See the commit messages of the commit that introduced this comment for details. */ if (getrec) { @@ -6365,7 +6365,7 @@ static void test_ecdsa_end_to_end(void) { CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey, privkey) == 1); /* Verify exporting and importing public key. */ - CHECK(secp256k1_ec_pubkey_serialize(CTX, pubkeyc, &pubkeyclen, &pubkey, secp256k1_testrand_bits(1) == 1 ? SECP256K1_EC_COMPRESSED : SECP256K1_EC_UNCOMPRESSED)); + CHECK(secp256k1_ec_pubkey_serialize(CTX, pubkeyc, &pubkeyclen, &pubkey, testrand_bits(1) == 1 ? SECP256K1_EC_COMPRESSED : SECP256K1_EC_UNCOMPRESSED)); memset(&pubkey, 0, sizeof(pubkey)); CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, pubkeyc, pubkeyclen) == 1); @@ -6377,19 +6377,19 @@ static void test_ecdsa_end_to_end(void) { CHECK(secp256k1_memcmp_var(&pubkey_tmp, &pubkey, sizeof(pubkey)) == 0); /* Verify private key import and export. */ - CHECK(ec_privkey_export_der(CTX, seckey, &seckeylen, privkey, secp256k1_testrand_bits(1) == 1)); + CHECK(ec_privkey_export_der(CTX, seckey, &seckeylen, privkey, testrand_bits(1) == 1)); CHECK(ec_privkey_import_der(CTX, privkey2, seckey, seckeylen) == 1); CHECK(secp256k1_memcmp_var(privkey, privkey2, 32) == 0); /* Optionally tweak the keys using addition. */ - if (secp256k1_testrand_int(3) == 0) { + if (testrand_int(3) == 0) { int ret1; int ret2; int ret3; unsigned char rnd[32]; unsigned char privkey_tmp[32]; secp256k1_pubkey pubkey2; - secp256k1_testrand256_test(rnd); + testrand256_test(rnd); memcpy(privkey_tmp, privkey, 32); ret1 = secp256k1_ec_seckey_tweak_add(CTX, privkey, rnd); ret2 = secp256k1_ec_pubkey_tweak_add(CTX, &pubkey, rnd); @@ -6406,14 +6406,14 @@ static void test_ecdsa_end_to_end(void) { } /* Optionally tweak the keys using multiplication. */ - if (secp256k1_testrand_int(3) == 0) { + if (testrand_int(3) == 0) { int ret1; int ret2; int ret3; unsigned char rnd[32]; unsigned char privkey_tmp[32]; secp256k1_pubkey pubkey2; - secp256k1_testrand256_test(rnd); + testrand256_test(rnd); memcpy(privkey_tmp, privkey, 32); ret1 = secp256k1_ec_seckey_tweak_mul(CTX, privkey, rnd); ret2 = secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey, rnd); @@ -6475,7 +6475,7 @@ static void test_ecdsa_end_to_end(void) { /* Serialize/destroy/parse DER and verify again. */ siglen = 74; CHECK(secp256k1_ecdsa_signature_serialize_der(CTX, sig, &siglen, &signature[0]) == 1); - sig[secp256k1_testrand_int(siglen)] += 1 + secp256k1_testrand_int(255); + sig[testrand_int(siglen)] += 1 + testrand_int(255); CHECK(secp256k1_ecdsa_signature_parse_der(CTX, &signature[0], sig, siglen) == 0 || secp256k1_ecdsa_verify(CTX, &signature[0], message, &pubkey) == 0); } @@ -6485,23 +6485,23 @@ static void test_random_pubkeys(void) { secp256k1_ge elem2; unsigned char in[65]; /* Generate some randomly sized pubkeys. */ - size_t len = secp256k1_testrand_bits(2) == 0 ? 65 : 33; - if (secp256k1_testrand_bits(2) == 0) { - len = secp256k1_testrand_bits(6); + size_t len = testrand_bits(2) == 0 ? 65 : 33; + if (testrand_bits(2) == 0) { + len = testrand_bits(6); } if (len == 65) { - in[0] = secp256k1_testrand_bits(1) ? 4 : (secp256k1_testrand_bits(1) ? 6 : 7); + in[0] = testrand_bits(1) ? 4 : (testrand_bits(1) ? 6 : 7); } else { - in[0] = secp256k1_testrand_bits(1) ? 2 : 3; + in[0] = testrand_bits(1) ? 2 : 3; } - if (secp256k1_testrand_bits(3) == 0) { - in[0] = secp256k1_testrand_bits(8); + if (testrand_bits(3) == 0) { + in[0] = testrand_bits(8); } if (len > 1) { - secp256k1_testrand256(&in[1]); + testrand256(&in[1]); } if (len > 33) { - secp256k1_testrand256(&in[33]); + testrand256(&in[33]); } if (secp256k1_eckey_pubkey_parse(&elem, in, len)) { unsigned char out[65]; @@ -6523,7 +6523,7 @@ static void test_random_pubkeys(void) { CHECK(secp256k1_eckey_pubkey_parse(&elem2, in, size)); CHECK(secp256k1_ge_eq_var(&elem2, &elem)); /* Check that the X9.62 hybrid type is checked. */ - in[0] = secp256k1_testrand_bits(1) ? 6 : 7; + in[0] = testrand_bits(1) ? 6 : 7; res = secp256k1_eckey_pubkey_parse(&elem2, in, size); if (firstb == 2 || firstb == 3) { if (in[0] == firstb + 4) { @@ -6602,7 +6602,7 @@ static void permute(size_t *arr, size_t n) { size_t i; for (i = n - 1; i >= 1; i--) { size_t tmp, j; - j = secp256k1_testrand_int(i + 1); + j = testrand_int(i + 1); tmp = arr[i]; arr[i] = arr[j]; arr[j] = tmp; @@ -6612,7 +6612,7 @@ static void permute(size_t *arr, size_t n) { static void rand_pk(secp256k1_pubkey *pk) { unsigned char seckey[32]; secp256k1_keypair keypair; - secp256k1_testrand256(seckey); + testrand256(seckey); CHECK(secp256k1_keypair_create(CTX, &keypair, seckey) == 1); CHECK(secp256k1_keypair_pub(CTX, pk, &keypair) == 1); } @@ -6828,27 +6828,27 @@ static void assign_big_endian(unsigned char *ptr, size_t ptrlen, uint32_t val) { static void damage_array(unsigned char *sig, size_t *len) { int pos; - int action = secp256k1_testrand_bits(3); + int action = testrand_bits(3); if (action < 1 && *len > 3) { /* Delete a byte. */ - pos = secp256k1_testrand_int(*len); + pos = testrand_int(*len); memmove(sig + pos, sig + pos + 1, *len - pos - 1); (*len)--; return; } else if (action < 2 && *len < 2048) { /* Insert a byte. */ - pos = secp256k1_testrand_int(1 + *len); + pos = testrand_int(1 + *len); memmove(sig + pos + 1, sig + pos, *len - pos); - sig[pos] = secp256k1_testrand_bits(8); + sig[pos] = testrand_bits(8); (*len)++; return; } else if (action < 4) { /* Modify a byte. */ - sig[secp256k1_testrand_int(*len)] += 1 + secp256k1_testrand_int(255); + sig[testrand_int(*len)] += 1 + testrand_int(255); return; } else { /* action < 8 */ /* Modify a bit. */ - sig[secp256k1_testrand_int(*len)] ^= 1 << secp256k1_testrand_bits(3); + sig[testrand_int(*len)] ^= 1 << testrand_bits(3); return; } } @@ -6861,23 +6861,23 @@ static void random_ber_signature(unsigned char *sig, size_t *len, int* certainly int n; *len = 0; - der = secp256k1_testrand_bits(2) == 0; + der = testrand_bits(2) == 0; *certainly_der = der; *certainly_not_der = 0; - indet = der ? 0 : secp256k1_testrand_int(10) == 0; + indet = der ? 0 : testrand_int(10) == 0; for (n = 0; n < 2; n++) { /* We generate two classes of numbers: nlow==1 "low" ones (up to 32 bytes), nlow==0 "high" ones (32 bytes with 129 top bits set, or larger than 32 bytes) */ - nlow[n] = der ? 1 : (secp256k1_testrand_bits(3) != 0); + nlow[n] = der ? 1 : (testrand_bits(3) != 0); /* The length of the number in bytes (the first byte of which will always be nonzero) */ - nlen[n] = nlow[n] ? secp256k1_testrand_int(33) : 32 + secp256k1_testrand_int(200) * secp256k1_testrand_bits(3) / 8; + nlen[n] = nlow[n] ? testrand_int(33) : 32 + testrand_int(200) * testrand_bits(3) / 8; CHECK(nlen[n] <= 232); /* The top bit of the number. */ - nhbit[n] = (nlow[n] == 0 && nlen[n] == 32) ? 1 : (nlen[n] == 0 ? 0 : secp256k1_testrand_bits(1)); + nhbit[n] = (nlow[n] == 0 && nlen[n] == 32) ? 1 : (nlen[n] == 0 ? 0 : testrand_bits(1)); /* The top byte of the number (after the potential hardcoded 16 0xFF characters for "high" 32 bytes numbers) */ - nhbyte[n] = nlen[n] == 0 ? 0 : (nhbit[n] ? 128 + secp256k1_testrand_bits(7) : 1 + secp256k1_testrand_int(127)); + nhbyte[n] = nlen[n] == 0 ? 0 : (nhbit[n] ? 128 + testrand_bits(7) : 1 + testrand_int(127)); /* The number of zero bytes in front of the number (which is 0 or 1 in case of DER, otherwise we extend up to 300 bytes) */ - nzlen[n] = der ? ((nlen[n] == 0 || nhbit[n]) ? 1 : 0) : (nlow[n] ? secp256k1_testrand_int(3) : secp256k1_testrand_int(300 - nlen[n]) * secp256k1_testrand_bits(3) / 8); + nzlen[n] = der ? ((nlen[n] == 0 || nhbit[n]) ? 1 : 0) : (nlow[n] ? testrand_int(3) : testrand_int(300 - nlen[n]) * testrand_bits(3) / 8); if (nzlen[n] > ((nlen[n] == 0 || nhbit[n]) ? 1 : 0)) { *certainly_not_der = 1; } @@ -6886,7 +6886,7 @@ static void random_ber_signature(unsigned char *sig, size_t *len, int* certainly nlenlen[n] = nlen[n] + nzlen[n] < 128 ? 0 : (nlen[n] + nzlen[n] < 256 ? 1 : 2); if (!der) { /* nlenlen[n] max 127 bytes */ - int add = secp256k1_testrand_int(127 - nlenlen[n]) * secp256k1_testrand_bits(4) * secp256k1_testrand_bits(4) / 256; + int add = testrand_int(127 - nlenlen[n]) * testrand_bits(4) * testrand_bits(4) / 256; nlenlen[n] += add; if (add != 0) { *certainly_not_der = 1; @@ -6900,7 +6900,7 @@ static void random_ber_signature(unsigned char *sig, size_t *len, int* certainly CHECK(tlen <= 856); /* The length of the garbage inside the tuple. */ - elen = (der || indet) ? 0 : secp256k1_testrand_int(980 - tlen) * secp256k1_testrand_bits(3) / 8; + elen = (der || indet) ? 0 : testrand_int(980 - tlen) * testrand_bits(3) / 8; if (elen != 0) { *certainly_not_der = 1; } @@ -6908,7 +6908,7 @@ static void random_ber_signature(unsigned char *sig, size_t *len, int* certainly CHECK(tlen <= 980); /* The length of the garbage after the end of the tuple. */ - glen = der ? 0 : secp256k1_testrand_int(990 - tlen) * secp256k1_testrand_bits(3) / 8; + glen = der ? 0 : testrand_int(990 - tlen) * testrand_bits(3) / 8; if (glen != 0) { *certainly_not_der = 1; } @@ -6923,7 +6923,7 @@ static void random_ber_signature(unsigned char *sig, size_t *len, int* certainly } else { int tlenlen = tlen < 128 ? 0 : (tlen < 256 ? 1 : 2); if (!der) { - int add = secp256k1_testrand_int(127 - tlenlen) * secp256k1_testrand_bits(4) * secp256k1_testrand_bits(4) / 256; + int add = testrand_int(127 - tlenlen) * testrand_bits(4) * testrand_bits(4) / 256; tlenlen += add; if (add != 0) { *certainly_not_der = 1; @@ -6974,13 +6974,13 @@ static void random_ber_signature(unsigned char *sig, size_t *len, int* certainly nlen[n]--; } /* Generate remaining random bytes of number */ - secp256k1_testrand_bytes_test(sig + *len, nlen[n]); + testrand_bytes_test(sig + *len, nlen[n]); *len += nlen[n]; nlen[n] = 0; } /* Generate random garbage inside tuple. */ - secp256k1_testrand_bytes_test(sig + *len, elen); + testrand_bytes_test(sig + *len, elen); *len += elen; /* Generate end-of-contents bytes. */ @@ -6992,7 +6992,7 @@ static void random_ber_signature(unsigned char *sig, size_t *len, int* certainly CHECK(tlen + glen <= 1121); /* Generate random garbage outside tuple. */ - secp256k1_testrand_bytes_test(sig + *len, glen); + testrand_bytes_test(sig + *len, glen); *len += glen; tlen += glen; CHECK(tlen <= 1121); @@ -7655,7 +7655,7 @@ int main(int argc, char **argv) { run_xoshiro256pp_tests(); /* find random seed */ - secp256k1_testrand_init(argc > 2 ? argv[2] : NULL); + testrand_init(argc > 2 ? argv[2] : NULL); /*** Setup test environment ***/ @@ -7664,9 +7664,9 @@ int main(int argc, char **argv) { /* Randomize the context only with probability 15/16 to make sure we test without context randomization from time to time. TODO Reconsider this when recalibrating the tests. */ - if (secp256k1_testrand_bits(4)) { + if (testrand_bits(4)) { unsigned char rand32[32]; - secp256k1_testrand256(rand32); + testrand256(rand32); CHECK(secp256k1_context_randomize(CTX, rand32)); } /* Make a writable copy of secp256k1_context_static in order to test the effect of API functions @@ -7793,7 +7793,7 @@ int main(int argc, char **argv) { free(STATIC_CTX); secp256k1_context_destroy(CTX); - secp256k1_testrand_finish(); + testrand_finish(); printf("no problems found\n"); return 0; diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 0138f224f1..6efa88982e 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -375,7 +375,7 @@ int main(int argc, char** argv) { printf("test count = %i\n", count); /* find random seed */ - secp256k1_testrand_init(argc > 2 ? argv[2] : NULL); + testrand_init(argc > 2 ? argv[2] : NULL); /* set up split processing */ if (argc > 4) { @@ -395,7 +395,7 @@ int main(int argc, char** argv) { while (count--) { /* Build context */ ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); - secp256k1_testrand256(rand32); + testrand256(rand32); CHECK(secp256k1_context_randomize(ctx, rand32)); /* Generate the entire group */ @@ -459,7 +459,7 @@ int main(int argc, char** argv) { secp256k1_context_destroy(ctx); } - secp256k1_testrand_finish(); + testrand_finish(); printf("no problems found\n"); return 0; diff --git a/src/testutil.h b/src/testutil.h index cb33a48596..8296a5fb99 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -14,7 +14,7 @@ static void testutil_random_fe(secp256k1_fe *x) { unsigned char bin[32]; do { - secp256k1_testrand256(bin); + testrand256(bin); if (secp256k1_fe_set_b32_limit(x, bin)) { return; } @@ -29,7 +29,7 @@ static void testutil_random_fe_non_zero(secp256k1_fe *nz) { static void testutil_random_fe_magnitude(secp256k1_fe *fe, int m) { secp256k1_fe zero; - int n = secp256k1_testrand_int(m + 1); + int n = testrand_int(m + 1); secp256k1_fe_normalize(fe); if (n == 0) { return; @@ -46,7 +46,7 @@ static void testutil_random_fe_magnitude(secp256k1_fe *fe, int m) { static void testutil_random_fe_test(secp256k1_fe *x) { unsigned char bin[32]; do { - secp256k1_testrand256_test(bin); + testrand256_test(bin); if (secp256k1_fe_set_b32_limit(x, bin)) { return; } @@ -83,7 +83,7 @@ static void testutil_random_ge_test(secp256k1_ge *ge) { secp256k1_fe fe; do { testutil_random_fe_test(&fe); - if (secp256k1_ge_set_xo_var(ge, &fe, secp256k1_testrand_bits(1))) { + if (secp256k1_ge_set_xo_var(ge, &fe, testrand_bits(1))) { secp256k1_fe_normalize(&ge->y); break; } @@ -111,7 +111,7 @@ static void testutil_random_scalar_order_test(secp256k1_scalar *num) { do { unsigned char b32[32]; int overflow = 0; - secp256k1_testrand256_test(b32); + testrand256_test(b32); secp256k1_scalar_set_b32(num, b32, &overflow); if (overflow || secp256k1_scalar_is_zero(num)) { continue; @@ -124,7 +124,7 @@ static void testutil_random_scalar_order(secp256k1_scalar *num) { do { unsigned char b32[32]; int overflow = 0; - secp256k1_testrand256(b32); + testrand256(b32); secp256k1_scalar_set_b32(num, b32, &overflow); if (overflow || secp256k1_scalar_is_zero(num)) { continue; From 122dbaeb371cf65b8ebbc713bcbdb05203670d49 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 27 May 2024 10:56:37 +0100 Subject: [PATCH 374/557] autotools: Remove "auto" value of `--with-ecmult-window` option "auto" implies that a value is being chosen based on build system introspection or host system capabilities. However, for the `--with-ecmult-window` option, the value "auto" is hardcoded, which might lead to confusion. This change replaces "auto" with a more appropriate default value. --- .cirrus.yml | 2 +- .github/workflows/ci.yml | 2 +- configure.ac | 15 ++++----------- 3 files changed, 6 insertions(+), 13 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 6e77403bf5..6431465d73 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -10,7 +10,7 @@ env: MAKEFLAGS: -j4 BUILD: check ### secp256k1 config - ECMULTWINDOW: auto + ECMULTWINDOW: 15 ECMULTGENKB: auto ASM: no WIDEMUL: auto diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index d246682044..f42f7852f9 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -21,7 +21,7 @@ env: MAKEFLAGS: '-j4' BUILD: 'check' ### secp256k1 config - ECMULTWINDOW: 'auto' + ECMULTWINDOW: 15 ECMULTGENKB: 'auto' ASM: 'no' WIDEMUL: 'auto' diff --git a/configure.ac b/configure.ac index 8b62e1dbfd..c0f809e721 100644 --- a/configure.ac +++ b/configure.ac @@ -203,15 +203,15 @@ AC_ARG_WITH([test-override-wide-multiply], [] ,[set_widemul=$withval], [set_wide AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm32|no|auto], [assembly to use (experimental: arm32) [default=auto]])],[req_asm=$withval], [req_asm=auto]) -AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE|auto], +AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE], [window size for ecmult precomputation for verification, specified as integer in range [2..24].] [Larger values result in possibly better performance at the cost of an exponentially larger precomputed table.] [The table will store 2^(SIZE-1) * 64 bytes of data but can be larger in memory due to platform-specific padding and alignment.] [A window size larger than 15 will require you delete the prebuilt precomputed_ecmult.c file so that it can be rebuilt.] [For very large window sizes, use "make -j 1" to reduce memory use during compilation.] -["auto" is a reasonable setting for desktop machines (currently 15). [default=auto]] +[The default value is a reasonable setting for desktop machines (currently 15). [default=15]] )], -[req_ecmult_window=$withval], [req_ecmult_window=auto]) +[set_ecmult_window=$withval], [set_ecmult_window=15]) AC_ARG_WITH([ecmult-gen-kb], [AS_HELP_STRING([--with-ecmult-gen-kb=2|22|86|auto], [The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms).] @@ -335,14 +335,7 @@ auto) ;; esac -# Set ecmult window size -if test x"$req_ecmult_window" = x"auto"; then - set_ecmult_window=15 -else - set_ecmult_window=$req_ecmult_window -fi - -error_window_size=['window size for ecmult precomputation not an integer in range [2..24] or "auto"'] +error_window_size=['window size for ecmult precomputation not an integer in range [2..24]'] case $set_ecmult_window in ''|*[[!0-9]]*) # no valid integer From 26b94ee92a7928d0e3ceb265f8e4b5bbabf01a77 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 27 May 2024 10:46:36 +0100 Subject: [PATCH 375/557] autotools: Remove "auto" value of `--with-ecmult-gen-kb` option "auto" implies that a value is being chosen based on build system introspection or host system capabilities. However, for the `--with-ecmult-gen-kb` option, the value "auto" is hardcoded, which might lead to confusion. This change replaces "auto" with a more appropriate default value. --- .cirrus.yml | 2 +- .github/workflows/ci.yml | 2 +- configure.ac | 15 ++++----------- 3 files changed, 6 insertions(+), 13 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 6431465d73..4bd15511a4 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -11,7 +11,7 @@ env: BUILD: check ### secp256k1 config ECMULTWINDOW: 15 - ECMULTGENKB: auto + ECMULTGENKB: 22 ASM: no WIDEMUL: auto WITH_VALGRIND: yes diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index f42f7852f9..98f5e2b333 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -22,7 +22,7 @@ env: BUILD: 'check' ### secp256k1 config ECMULTWINDOW: 15 - ECMULTGENKB: 'auto' + ECMULTGENKB: 22 ASM: 'no' WIDEMUL: 'auto' WITH_VALGRIND: 'yes' diff --git a/configure.ac b/configure.ac index c0f809e721..ed3c4b80dd 100644 --- a/configure.ac +++ b/configure.ac @@ -213,12 +213,12 @@ AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE], )], [set_ecmult_window=$withval], [set_ecmult_window=15]) -AC_ARG_WITH([ecmult-gen-kb], [AS_HELP_STRING([--with-ecmult-gen-kb=2|22|86|auto], +AC_ARG_WITH([ecmult-gen-kb], [AS_HELP_STRING([--with-ecmult-gen-kb=2|22|86], [The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms).] [Larger values result in possibly better signing/keygeneration performance at the cost of a larger table.] -["auto" is a reasonable setting for desktop machines (currently 22). [default=auto]] +[The default value is a reasonable setting for desktop machines (currently 22). [default=22]] )], -[req_ecmult_gen_kb=$withval], [req_ecmult_gen_kb=auto]) +[set_ecmult_gen_kb=$withval], [set_ecmult_gen_kb=22]) AC_ARG_WITH([valgrind], [AS_HELP_STRING([--with-valgrind=yes|no|auto], [Build with extra checks for running inside Valgrind [default=auto]] @@ -350,13 +350,6 @@ case $set_ecmult_window in ;; esac -# Set ecmult gen kb -if test x"$req_ecmult_gen_kb" = x"auto"; then - set_ecmult_gen_kb=22 -else - set_ecmult_gen_kb=$req_ecmult_gen_kb -fi - case $set_ecmult_gen_kb in 2) SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=2 -DCOMB_TEETH=5" @@ -368,7 +361,7 @@ case $set_ecmult_gen_kb in SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=43 -DCOMB_TEETH=6" ;; *) - AC_MSG_ERROR(['ecmult gen table size not 2, 22, 86 or "auto"']) + AC_MSG_ERROR(['ecmult gen table size not 2, 22 or 86']) ;; esac From a06805ee7428d2786e631c9b5650c25fb0d46fe0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 27 May 2024 13:26:03 +0100 Subject: [PATCH 376/557] cmake: Remove "AUTO" value of `SECP256K1_ECMULT_WINDOW_SIZE` option "AUTO" implies that a value is being chosen based on build system introspection or host system capabilities. However, for the `SECP256K1_ECMULT_WINDOW_SIZE` option, the value "AUTO" is hardcoded, which might lead to confusion. This change replaces "AUTO" with a more appropriate default value. --- CMakeLists.txt | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 88994d828a..216d6465cf 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -92,13 +92,10 @@ if(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS) add_compile_definitions(USE_EXTERNAL_DEFAULT_CALLBACKS=1) endif() -set(SECP256K1_ECMULT_WINDOW_SIZE "AUTO" CACHE STRING "Window size for ecmult precomputation for verification, specified as integer in range [2..24]. \"AUTO\" is a reasonable setting for desktop machines (currently 15). [default=AUTO]") -set_property(CACHE SECP256K1_ECMULT_WINDOW_SIZE PROPERTY STRINGS "AUTO" 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24) +set(SECP256K1_ECMULT_WINDOW_SIZE 15 CACHE STRING "Window size for ecmult precomputation for verification, specified as integer in range [2..24]. The default value is a reasonable setting for desktop machines (currently 15). [default=15]") +set_property(CACHE SECP256K1_ECMULT_WINDOW_SIZE PROPERTY STRINGS 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24) include(CheckStringOptionValue) check_string_option_value(SECP256K1_ECMULT_WINDOW_SIZE) -if(SECP256K1_ECMULT_WINDOW_SIZE STREQUAL "AUTO") - set(SECP256K1_ECMULT_WINDOW_SIZE 15) -endif() add_compile_definitions(ECMULT_WINDOW_SIZE=${SECP256K1_ECMULT_WINDOW_SIZE}) set(SECP256K1_ECMULT_GEN_KB "AUTO" CACHE STRING "The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms). Larger values result in possibly better signing or key generation performance at the cost of a larger table. Valid choices are 2, 22, 86. \"AUTO\" is a reasonable setting for desktop machines (currently 22). [default=AUTO]") From 4d9645bee06e732f5d7d9e72b0c26c22c5006eb8 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 27 May 2024 13:32:23 +0100 Subject: [PATCH 377/557] cmake: Remove "AUTO" value of `SECP256K1_ECMULT_GEN_KB` option "AUTO" implies that a value is being chosen based on build system introspection or host system capabilities. However, for the `SECP256K1_ECMULT_GEN_KB` option, the value "AUTO" is hardcoded, which might lead to confusion. This change replaces "AUTO" with a more appropriate default value. --- CMakeLists.txt | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 216d6465cf..3d0c99b67a 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -98,12 +98,9 @@ include(CheckStringOptionValue) check_string_option_value(SECP256K1_ECMULT_WINDOW_SIZE) add_compile_definitions(ECMULT_WINDOW_SIZE=${SECP256K1_ECMULT_WINDOW_SIZE}) -set(SECP256K1_ECMULT_GEN_KB "AUTO" CACHE STRING "The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms). Larger values result in possibly better signing or key generation performance at the cost of a larger table. Valid choices are 2, 22, 86. \"AUTO\" is a reasonable setting for desktop machines (currently 22). [default=AUTO]") -set_property(CACHE SECP256K1_ECMULT_GEN_KB PROPERTY STRINGS "AUTO" 2 22 86) +set(SECP256K1_ECMULT_GEN_KB 22 CACHE STRING "The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms). Larger values result in possibly better signing or key generation performance at the cost of a larger table. Valid choices are 2, 22, 86. The default value is a reasonable setting for desktop machines (currently 22). [default=22]") +set_property(CACHE SECP256K1_ECMULT_GEN_KB PROPERTY STRINGS 2 22 86) check_string_option_value(SECP256K1_ECMULT_GEN_KB) -if(SECP256K1_ECMULT_GEN_KB STREQUAL "AUTO") - set(SECP256K1_ECMULT_GEN_KB 22) -endif() if(SECP256K1_ECMULT_GEN_KB EQUAL 2) add_compile_definitions(COMB_BLOCKS=2) add_compile_definitions(COMB_TEETH=5) From 7abf979a438f9dfc3517ab913f9075b950628835 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 28 May 2024 09:37:00 +0100 Subject: [PATCH 378/557] cmake: Disable `ctime_tests` if build with `-fsanitize=memory` Clang >= 16 has `-fsanitize-memory-param-retval` turned on by default, which is incompatible with --- CMakeLists.txt | 20 +++++++++++++++++++- cmake/CheckMemorySanitizer.cmake | 18 ++++++++++++++++++ 2 files changed, 37 insertions(+), 1 deletion(-) create mode 100644 cmake/CheckMemorySanitizer.cmake diff --git a/CMakeLists.txt b/CMakeLists.txt index 88994d828a..ef079cd1f9 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -263,6 +263,17 @@ endif() set(CMAKE_C_VISIBILITY_PRESET hidden) +set(print_msan_notice) +if(SECP256K1_BUILD_CTIME_TESTS) + include(CheckMemorySanitizer) + check_memory_sanitizer(msan_enabled) + if(msan_enabled) + try_append_c_flags(-fno-sanitize-memory-param-retval) + set(print_msan_notice YES) + endif() + unset(msan_enabled) +endif() + # Ask CTest to create a "check" target (e.g., make check) as alias for the "test" target. # CTEST_TEST_TARGET_ALIAS is not documented but supposed to be user-facing. # See: https://gitlab.kitware.com/cmake/cmake/-/commit/816c9d1aa1f2b42d40c81a991b68c96eb12b6d2 @@ -358,7 +369,14 @@ endif() if(SECP256K1_LATE_CFLAGS) message("SECP256K1_LATE_CFLAGS ................. ${SECP256K1_LATE_CFLAGS}") endif() -message("\n") +message("") +if(print_msan_notice) + message( + "Note:\n" + " MemorySanitizer detected, tried to add -fno-sanitize-memory-param-retval to compile options\n" + " to avoid false positives in ctime_tests. Pass -DSECP256K1_BUILD_CTIME_TESTS=OFF to avoid this.\n" + ) +endif() if(SECP256K1_EXPERIMENTAL) message( " ******\n" diff --git a/cmake/CheckMemorySanitizer.cmake b/cmake/CheckMemorySanitizer.cmake new file mode 100644 index 0000000000..d9ef681e65 --- /dev/null +++ b/cmake/CheckMemorySanitizer.cmake @@ -0,0 +1,18 @@ +include_guard(GLOBAL) +include(CheckCSourceCompiles) + +function(check_memory_sanitizer output) + set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) + check_c_source_compiles(" + #if defined(__has_feature) + # if __has_feature(memory_sanitizer) + /* MemorySanitizer is enabled. */ + # elif + # error \"MemorySanitizer is disabled.\" + # endif + #else + # error \"__has_feature is not defined.\" + #endif + " HAVE_MSAN) + set(${output} ${HAVE_MSAN} PARENT_SCOPE) +endfunction() From abde59f52dd901287fa774225d3dbd22933d90c2 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 26 May 2024 15:53:42 +0100 Subject: [PATCH 379/557] cmake: Report more compiler details in summary --- CMakeLists.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index ef079cd1f9..a02cc8ce75 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -343,7 +343,7 @@ message("Valgrind .............................. ${SECP256K1_VALGRIND}") get_directory_property(definitions COMPILE_DEFINITIONS) string(REPLACE ";" " " definitions "${definitions}") message("Preprocessor defined macros ........... ${definitions}") -message("C compiler ............................ ${CMAKE_C_COMPILER}") +message("C compiler ............................ ${CMAKE_C_COMPILER_ID} ${CMAKE_C_COMPILER_VERSION}, ${CMAKE_C_COMPILER}") message("CFLAGS ................................ ${CMAKE_C_FLAGS}") get_directory_property(compile_options COMPILE_OPTIONS) string(REPLACE ";" " " compile_options "${compile_options}") From 396e885886b2665850c3b10e4cd029cffffce1b7 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 28 May 2024 09:44:47 +0100 Subject: [PATCH 380/557] autotools: Align MSan checking code with CMake's implementation --- build-aux/m4/bitcoin_secp.m4 | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/build-aux/m4/bitcoin_secp.m4 b/build-aux/m4/bitcoin_secp.m4 index fee2d7b4db..048267fa6e 100644 --- a/build-aux/m4/bitcoin_secp.m4 +++ b/build-aux/m4/bitcoin_secp.m4 @@ -50,10 +50,14 @@ AC_MSG_CHECKING(whether MemorySanitizer is enabled) AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #if defined(__has_feature) # if __has_feature(memory_sanitizer) - # error "MemorySanitizer is enabled." + /* MemorySanitizer is enabled. */ + # elif + # error "MemorySanitizer is disabled." # endif + #else + # error "__has_feature is not defined." #endif - ]])], [msan_enabled=no], [msan_enabled=yes]) + ]])], [msan_enabled=yes], [msan_enabled=no]) AC_MSG_RESULT([$msan_enabled]) ]) From f55703ba49454fc46226f4846fe292d4a3dfa3ef Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 28 May 2024 09:47:00 +0100 Subject: [PATCH 381/557] autotools: Delete unneeded compiler test This change makes both Autotools and CMake build systems consistent. --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 9640a67399..b6d20cc9e1 100644 --- a/configure.ac +++ b/configure.ac @@ -248,7 +248,7 @@ if test x"$enable_ctime_tests" = x"auto"; then fi print_msan_notice=no -if test x"$enable_ctime_tests" = x"yes" && test x"$GCC" = x"yes"; then +if test x"$enable_ctime_tests" = x"yes"; then SECP_MSAN_CHECK # MSan on Clang >=16 reports unitialized memory in function parameters and return values, even if # the uninitalized variable is never actually "used". This is called "eager" checking, and it's From 158f9e5eae583b1520af9ee727db342e7408dab1 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 18 Jun 2024 15:44:15 +0100 Subject: [PATCH 382/557] cmake: Do not modify build types when integrating by downstream project The `CMAKE_BUILD_TYPE` and `CMAKE_CONFIGURATION_TYPES` variables must be managed by the downstream project. Suggesting to review with `git diff -w`. --- CMakeLists.txt | 32 +++++++++++++++++--------------- 1 file changed, 17 insertions(+), 15 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index ef2b07a11f..3a92a329c1 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -213,23 +213,25 @@ mark_as_advanced( CMAKE_SHARED_LINKER_FLAGS_COVERAGE ) -get_property(is_multi_config GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG) -set(default_build_type "RelWithDebInfo") -if(is_multi_config) - set(CMAKE_CONFIGURATION_TYPES "${default_build_type}" "Release" "Debug" "MinSizeRel" "Coverage" CACHE STRING - "Supported configuration types." - FORCE - ) -else() - set_property(CACHE CMAKE_BUILD_TYPE PROPERTY - STRINGS "${default_build_type}" "Release" "Debug" "MinSizeRel" "Coverage" - ) - if(NOT CMAKE_BUILD_TYPE) - message(STATUS "Setting build type to \"${default_build_type}\" as none was specified") - set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING - "Choose the type of build." +if(PROJECT_IS_TOP_LEVEL) + get_property(is_multi_config GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG) + set(default_build_type "RelWithDebInfo") + if(is_multi_config) + set(CMAKE_CONFIGURATION_TYPES "${default_build_type}" "Release" "Debug" "MinSizeRel" "Coverage" CACHE STRING + "Supported configuration types." FORCE ) + else() + set_property(CACHE CMAKE_BUILD_TYPE PROPERTY + STRINGS "${default_build_type}" "Release" "Debug" "MinSizeRel" "Coverage" + ) + if(NOT CMAKE_BUILD_TYPE) + message(STATUS "Setting build type to \"${default_build_type}\" as none was specified") + set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING + "Choose the type of build." + FORCE + ) + endif() endif() endif() From f87a3589f4d3bfd7a398232971bdb1ff125b8e9d Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 20 Jun 2024 21:16:30 +0100 Subject: [PATCH 383/557] cmake: Do not set `CTEST_TEST_TARGET_ALIAS` An alias for the "test" target can be confusing for the downstream project. So remove it. --- CMakeLists.txt | 4 ---- 1 file changed, 4 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index ef2b07a11f..0ae8bb54f4 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -273,10 +273,6 @@ if(SECP256K1_BUILD_CTIME_TESTS) unset(msan_enabled) endif() -# Ask CTest to create a "check" target (e.g., make check) as alias for the "test" target. -# CTEST_TEST_TARGET_ALIAS is not documented but supposed to be user-facing. -# See: https://gitlab.kitware.com/cmake/cmake/-/commit/816c9d1aa1f2b42d40c81a991b68c96eb12b6d2 -set(CTEST_TEST_TARGET_ALIAS check) include(CTest) # We do not use CTest's BUILD_TESTING because a single toggle for all tests is too coarse for our needs. mark_as_advanced(BUILD_TESTING) From c2764dbb99e7b8769df6814cf71beaeb59552701 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 21 Jun 2024 14:46:42 +0100 Subject: [PATCH 384/557] cmake: Rename `SECP256K1_LATE_CFLAGS` to `SECP256K1_APPEND_CFLAGS` This change follows the naming convention currently used in the Bitcoin Core's CMake staging branch. --- CMakeLists.txt | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index ef2b07a11f..26ca2e8f95 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -284,14 +284,14 @@ if(SECP256K1_BUILD_BENCHMARK OR SECP256K1_BUILD_TESTS OR SECP256K1_BUILD_EXHAUST enable_testing() endif() -set(SECP256K1_LATE_CFLAGS "" CACHE STRING "Compiler flags that are added to the command line after all other flags added by the build system.") +set(SECP256K1_APPEND_CFLAGS "" CACHE STRING "Compiler flags that are added to the command line after all other flags added by the build system.") include(AllTargetsCompileOptions) add_subdirectory(src) -all_targets_compile_options(src "${SECP256K1_LATE_CFLAGS}") +all_targets_compile_options(src "${SECP256K1_APPEND_CFLAGS}") if(SECP256K1_BUILD_EXAMPLES) add_subdirectory(examples) - all_targets_compile_options(examples "${SECP256K1_LATE_CFLAGS}") + all_targets_compile_options(examples "${SECP256K1_APPEND_CFLAGS}") endif() message("\n") @@ -365,8 +365,8 @@ else() message(" - LDFLAGS for executables ............ ${CMAKE_EXE_LINKER_FLAGS_DEBUG}") message(" - LDFLAGS for shared libraries ....... ${CMAKE_SHARED_LINKER_FLAGS_DEBUG}") endif() -if(SECP256K1_LATE_CFLAGS) - message("SECP256K1_LATE_CFLAGS ................. ${SECP256K1_LATE_CFLAGS}") +if(SECP256K1_APPEND_CFLAGS) + message("SECP256K1_APPEND_CFLAGS ............... ${SECP256K1_APPEND_CFLAGS}") endif() message("") if(print_msan_notice) From 4706be2cd0bcac97da10ed3b98790f1ac6f04efb Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 21 Jun 2024 14:45:07 +0100 Subject: [PATCH 385/557] cmake: Reimplement `SECP256K1_APPEND_CFLAGS` using Bitcoin Core approach --- CMakeLists.txt | 10 ++++++---- cmake/AllTargetsCompileOptions.cmake | 12 ------------ 2 files changed, 6 insertions(+), 16 deletions(-) delete mode 100644 cmake/AllTargetsCompileOptions.cmake diff --git a/CMakeLists.txt b/CMakeLists.txt index 26ca2e8f95..d91c50d7a8 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -284,14 +284,16 @@ if(SECP256K1_BUILD_BENCHMARK OR SECP256K1_BUILD_TESTS OR SECP256K1_BUILD_EXHAUST enable_testing() endif() -set(SECP256K1_APPEND_CFLAGS "" CACHE STRING "Compiler flags that are added to the command line after all other flags added by the build system.") -include(AllTargetsCompileOptions) +set(SECP256K1_APPEND_CFLAGS "" CACHE STRING "Compiler flags that are appended to the command line after all other flags added by the build system. This variable is intended for debugging and special builds.") +if(SECP256K1_APPEND_CFLAGS) + # Appending to this low-level rule variable is the only way to + # guarantee that the flags appear at the end of the command line. + string(APPEND CMAKE_C_COMPILE_OBJECT " ${SECP256K1_APPEND_CFLAGS}") +endif() add_subdirectory(src) -all_targets_compile_options(src "${SECP256K1_APPEND_CFLAGS}") if(SECP256K1_BUILD_EXAMPLES) add_subdirectory(examples) - all_targets_compile_options(examples "${SECP256K1_APPEND_CFLAGS}") endif() message("\n") diff --git a/cmake/AllTargetsCompileOptions.cmake b/cmake/AllTargetsCompileOptions.cmake deleted file mode 100644 index 6e420e0fde..0000000000 --- a/cmake/AllTargetsCompileOptions.cmake +++ /dev/null @@ -1,12 +0,0 @@ -# Add compile options to all targets added in the subdirectory. -function(all_targets_compile_options dir options) - get_directory_property(targets DIRECTORY ${dir} BUILDSYSTEM_TARGETS) - separate_arguments(options) - set(compiled_target_types STATIC_LIBRARY SHARED_LIBRARY OBJECT_LIBRARY EXECUTABLE) - foreach(target ${targets}) - get_target_property(type ${target} TYPE) - if(type IN_LIST compiled_target_types) - target_compile_options(${target} PRIVATE ${options}) - endif() - endforeach() -endfunction() From 7454a537367609e617f0bc5e0a64738ed6fbf6e9 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 24 Jun 2024 00:55:56 +0200 Subject: [PATCH 386/557] README: mention ellswift module Co-authored-by: Tim Ruffing --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6e88eb4ecb..e8d4123ab9 100644 --- a/README.md +++ b/README.md @@ -20,6 +20,7 @@ Features: * Optional module for public key recovery. * Optional module for ECDH key exchange. * Optional module for Schnorr signatures according to [BIP-340](https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki). +* Optional module for ElligatorSwift key exchange according to [BIP-324](https://github.com/bitcoin/bips/blob/master/bip-0324.mediawiki). Implementation details ---------------------- From 0e2fadb20c241bdd6cbbed7fcb3b4715a6133cf6 Mon Sep 17 00:00:00 2001 From: Elliot Lee Date: Mon, 24 Jun 2024 14:24:48 -0700 Subject: [PATCH 387/557] fix: typos in secp256k1.c --- src/secp256k1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/secp256k1.c b/src/secp256k1.c index 7a32769408..72d725a74e 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -76,7 +76,7 @@ const secp256k1_context *secp256k1_context_no_precomp = &secp256k1_context_stati /* Helper function that determines if a context is proper, i.e., is not the static context or a copy thereof. * - * This is intended for "context" functions such as secp256k1_context_clone. Function which need specific + * This is intended for "context" functions such as secp256k1_context_clone. Functions that need specific * features of a context should still check for these features directly. For example, a function that needs * ecmult_gen should directly check for the existence of the ecmult_gen context. */ static int secp256k1_context_is_proper(const secp256k1_context* ctx) { @@ -544,7 +544,7 @@ static int secp256k1_ecdsa_sign_inner(const secp256k1_context* ctx, secp256k1_sc break; } is_nonce_valid = secp256k1_scalar_set_b32_seckey(&non, nonce32); - /* The nonce is still secret here, but it being invalid is is less likely than 1:2^255. */ + /* The nonce is still secret here, but it being invalid is less likely than 1:2^255. */ secp256k1_declassify(ctx, &is_nonce_valid, sizeof(is_nonce_valid)); if (is_nonce_valid) { ret = secp256k1_ecdsa_sig_sign(&ctx->ecmult_gen_ctx, r, s, &sec, &msg, &non, recid); From fe4fbaa7f3eaa404f7ded669e611e28260839f9c Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Tue, 25 Jun 2024 16:52:38 +0200 Subject: [PATCH 388/557] examples: fix case typos in secret clearing paragraphs (s/, Or/, or/) --- examples/ecdh.c | 2 +- examples/ecdsa.c | 2 +- examples/schnorr.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/examples/ecdh.c b/examples/ecdh.c index 4b7b7d6154..d71fd2f604 100644 --- a/examples/ecdh.c +++ b/examples/ecdh.c @@ -108,7 +108,7 @@ int main(void) { /* It's best practice to try to clear secrets from memory after using them. * This is done because some bugs can allow an attacker to leak memory, for - * example through "out of bounds" array access (see Heartbleed), Or the OS + * example through "out of bounds" array access (see Heartbleed), or the OS * swapping them to disk. Hence, we overwrite the secret key buffer with zeros. * * Here we are preventing these writes from being optimized out, as any good compiler diff --git a/examples/ecdsa.c b/examples/ecdsa.c index d1d2b0e365..d5c4613d9c 100644 --- a/examples/ecdsa.c +++ b/examples/ecdsa.c @@ -128,7 +128,7 @@ int main(void) { /* It's best practice to try to clear secrets from memory after using them. * This is done because some bugs can allow an attacker to leak memory, for - * example through "out of bounds" array access (see Heartbleed), Or the OS + * example through "out of bounds" array access (see Heartbleed), or the OS * swapping them to disk. Hence, we overwrite the secret key buffer with zeros. * * Here we are preventing these writes from being optimized out, as any good compiler diff --git a/examples/schnorr.c b/examples/schnorr.c index 4c0dd1c1a9..b0409b986b 100644 --- a/examples/schnorr.c +++ b/examples/schnorr.c @@ -146,7 +146,7 @@ int main(void) { /* It's best practice to try to clear secrets from memory after using them. * This is done because some bugs can allow an attacker to leak memory, for - * example through "out of bounds" array access (see Heartbleed), Or the OS + * example through "out of bounds" array access (see Heartbleed), or the OS * swapping them to disk. Hence, we overwrite the secret key buffer with zeros. * * Here we are preventing these writes from being optimized out, as any good compiler From 31f84595c4fa8fcc89021790257b85416aae44f6 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Tue, 25 Jun 2024 03:11:21 +0200 Subject: [PATCH 389/557] Add ellswift usage example This should hopefully be useful as orientation for users implementing the key exchange part of BIP324. Conceptually the example is not very different to the ECDH one, so a lot of code/comments are just copied (e.g. context creation, secret key generation, shared secret comparison, console output, cleanup with secret key clearing). --- .gitignore | 1 + CHANGELOG.md | 3 + Makefile.am | 11 ++++ README.md | 1 + examples/CMakeLists.txt | 4 ++ examples/ellswift.c | 123 ++++++++++++++++++++++++++++++++++++++++ 6 files changed, 143 insertions(+) create mode 100644 examples/ellswift.c diff --git a/.gitignore b/.gitignore index 574902b8b5..18e3259f59 100644 --- a/.gitignore +++ b/.gitignore @@ -10,6 +10,7 @@ ctime_tests ecdh_example ecdsa_example schnorr_example +ellswift_example *.exe *.so *.a diff --git a/CHANGELOG.md b/CHANGELOG.md index a2855912fd..200653eba5 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Added + - Added usage example for an ElligatorSwift key exchange. + ## [0.5.0] - 2024-05-06 #### Added diff --git a/Makefile.am b/Makefile.am index 322e44eaab..8723b53b2c 100644 --- a/Makefile.am +++ b/Makefile.am @@ -184,6 +184,17 @@ schnorr_example_LDFLAGS += -lbcrypt endif TESTS += schnorr_example endif +if ENABLE_MODULE_ELLSWIFT +noinst_PROGRAMS += ellswift_example +ellswift_example_SOURCES = examples/ellswift.c +ellswift_example_CPPFLAGS = -I$(top_srcdir)/include -DSECP256K1_STATIC +ellswift_example_LDADD = libsecp256k1.la +ellswift_example_LDFLAGS = -static +if BUILD_WINDOWS +ellswift_example_LDFLAGS += -lbcrypt +endif +TESTS += ellswift_example +endif endif ### Precomputed tables diff --git a/README.md b/README.md index e8d4123ab9..9b20dd79b8 100644 --- a/README.md +++ b/README.md @@ -114,6 +114,7 @@ Usage examples can be found in the [examples](examples) directory. To compile th * [ECDSA example](examples/ecdsa.c) * [Schnorr signatures example](examples/schnorr.c) * [Deriving a shared secret (ECDH) example](examples/ecdh.c) + * [ElligatorSwift key exchange example](examples/ellswift.c) To compile the Schnorr signature and ECDH examples, you also need to configure with `--enable-module-schnorrsig` and `--enable-module-ecdh`. diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index 607bb67770..fd1ebce395 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -28,3 +28,7 @@ endif() if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) add_example(schnorr) endif() + +if(SECP256K1_ENABLE_MODULE_ELLSWIFT) + add_example(ellswift) +endif() diff --git a/examples/ellswift.c b/examples/ellswift.c new file mode 100644 index 0000000000..52be7eebfb --- /dev/null +++ b/examples/ellswift.c @@ -0,0 +1,123 @@ +/************************************************************************* + * Written in 2024 by Sebastian Falbesoner * + * To the extent possible under law, the author(s) have dedicated all * + * copyright and related and neighboring rights to the software in this * + * file to the public domain worldwide. This software is distributed * + * without any warranty. For the CC0 Public Domain Dedication, see * + * EXAMPLES_COPYING or https://creativecommons.org/publicdomain/zero/1.0 * + *************************************************************************/ + +/** This file demonstrates how to use the ElligatorSwift module to perform + * a key exchange according to BIP 324. Additionally, see the documentation + * in include/secp256k1_ellswift.h and doc/ellswift.md. + */ + +#include +#include +#include + +#include +#include + +#include "examples_util.h" + +int main(void) { + secp256k1_context* ctx; + unsigned char randomize[32]; + unsigned char auxrand1[32]; + unsigned char auxrand2[32]; + unsigned char seckey1[32]; + unsigned char seckey2[32]; + unsigned char ellswift_pubkey1[64]; + unsigned char ellswift_pubkey2[64]; + unsigned char shared_secret1[32]; + unsigned char shared_secret2[32]; + int return_val; + + /* Create a secp256k1 context */ + ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); + if (!fill_random(randomize, sizeof(randomize))) { + printf("Failed to generate randomness\n"); + return 1; + } + /* Randomizing the context is recommended to protect against side-channel + * leakage. See `secp256k1_context_randomize` in secp256k1.h for more + * information about it. This should never fail. */ + return_val = secp256k1_context_randomize(ctx, randomize); + assert(return_val); + + /*** Generate secret keys ***/ + + /* If the secret key is zero or out of range (bigger than secp256k1's + * order), we try to sample a new key. Note that the probability of this + * happening is negligible. */ + while (1) { + if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { + printf("Failed to generate randomness\n"); + return 1; + } + if (secp256k1_ec_seckey_verify(ctx, seckey1) && secp256k1_ec_seckey_verify(ctx, seckey2)) { + break; + } + } + + /* Generate ElligatorSwift public keys. This should never fail with valid context and + verified secret keys. Note that providing additional randomness (fourth parameter) is + optional, but recommended. */ + if (!fill_random(auxrand1, sizeof(auxrand1)) || !fill_random(auxrand2, sizeof(auxrand2))) { + printf("Failed to generate randomness\n"); + return 1; + } + return_val = secp256k1_ellswift_create(ctx, ellswift_pubkey1, seckey1, auxrand1); + assert(return_val); + return_val = secp256k1_ellswift_create(ctx, ellswift_pubkey2, seckey2, auxrand2); + assert(return_val); + + /*** Create the shared secret on each side ***/ + + /* Perform x-only ECDH with seckey1 and ellswift_pubkey2. Should never fail + * with a verified seckey and valid pubkey. Note that both parties pass both + * EllSwift pubkeys in the same order; the pubkey of the calling party is + * determined by the "party" boolean (sixth parameter). */ + return_val = secp256k1_ellswift_xdh(ctx, shared_secret1, ellswift_pubkey1, ellswift_pubkey2, + seckey1, 0, secp256k1_ellswift_xdh_hash_function_bip324, NULL); + assert(return_val); + + /* Perform x-only ECDH with seckey2 and ellswift_pubkey1. Should never fail + * with a verified seckey and valid pubkey. */ + return_val = secp256k1_ellswift_xdh(ctx, shared_secret2, ellswift_pubkey1, ellswift_pubkey2, + seckey2, 1, secp256k1_ellswift_xdh_hash_function_bip324, NULL); + assert(return_val); + + /* Both parties should end up with the same shared secret */ + return_val = memcmp(shared_secret1, shared_secret2, sizeof(shared_secret1)); + assert(return_val == 0); + + printf( " Secret Key1: "); + print_hex(seckey1, sizeof(seckey1)); + printf( "EllSwift Pubkey1: "); + print_hex(ellswift_pubkey1, sizeof(ellswift_pubkey1)); + printf("\n Secret Key2: "); + print_hex(seckey2, sizeof(seckey2)); + printf( "EllSwift Pubkey2: "); + print_hex(ellswift_pubkey2, sizeof(ellswift_pubkey2)); + printf("\n Shared Secret: "); + print_hex(shared_secret1, sizeof(shared_secret1)); + + /* This will clear everything from the context and free the memory */ + secp256k1_context_destroy(ctx); + + /* It's best practice to try to clear secrets from memory after using them. + * This is done because some bugs can allow an attacker to leak memory, for + * example through "out of bounds" array access (see Heartbleed), or the OS + * swapping them to disk. Hence, we overwrite the secret key buffer with zeros. + * + * Here we are preventing these writes from being optimized out, as any good compiler + * will remove any writes that aren't used. */ + secure_erase(seckey1, sizeof(seckey1)); + secure_erase(seckey2, sizeof(seckey2)); + secure_erase(shared_secret1, sizeof(shared_secret1)); + secure_erase(shared_secret2, sizeof(shared_secret2)); + + return 0; +} From 6aa576515efed241a749bcd2042eee6a928320a1 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 26 Jun 2024 23:31:26 +0100 Subject: [PATCH 390/557] cmake: Delete `CTest` module The `CTest` module handles `CDash` integration, which we do not use. It is not required for testing functionality. --- CMakeLists.txt | 3 --- 1 file changed, 3 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 7e3465a75b..e016cbf558 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -269,9 +269,6 @@ if(SECP256K1_BUILD_CTIME_TESTS) unset(msan_enabled) endif() -include(CTest) -# We do not use CTest's BUILD_TESTING because a single toggle for all tests is too coarse for our needs. -mark_as_advanced(BUILD_TESTING) if(SECP256K1_BUILD_BENCHMARK OR SECP256K1_BUILD_TESTS OR SECP256K1_BUILD_EXHAUSTIVE_TESTS OR SECP256K1_BUILD_CTIME_TESTS OR SECP256K1_BUILD_EXAMPLES) enable_testing() endif() From 7c987ec89e6cbee5d087683ba29b97012e679484 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 26 Jun 2024 23:37:36 +0100 Subject: [PATCH 391/557] cmake: Call `enable_testing()` unconditionally This change simplifies the code. Also comments has been added to highlight the code structure. --- CMakeLists.txt | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index e016cbf558..e068e202ac 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -7,6 +7,9 @@ if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.15) cmake_policy(SET CMP0092 NEW) endif() +#============================= +# Project / Package metadata +#============================= project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as @@ -16,6 +19,8 @@ project(libsecp256k1 HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C ) +enable_testing() +list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) if(CMAKE_VERSION VERSION_LESS 3.21) # Emulates CMake 3.21+ behavior. @@ -37,11 +42,15 @@ set(${PROJECT_NAME}_LIB_VERSION_CURRENT 4) set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) set(${PROJECT_NAME}_LIB_VERSION_AGE 2) +#============================= +# Language setup +#============================= set(CMAKE_C_STANDARD 90) set(CMAKE_C_EXTENSIONS OFF) -list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) - +#============================= +# Configurable options +#============================= option(BUILD_SHARED_LIBS "Build shared libraries." ON) option(SECP256K1_DISABLE_SHARED "Disable shared library. Overrides BUILD_SHARED_LIBS." OFF) if(SECP256K1_DISABLE_SHARED) @@ -269,10 +278,6 @@ if(SECP256K1_BUILD_CTIME_TESTS) unset(msan_enabled) endif() -if(SECP256K1_BUILD_BENCHMARK OR SECP256K1_BUILD_TESTS OR SECP256K1_BUILD_EXHAUSTIVE_TESTS OR SECP256K1_BUILD_CTIME_TESTS OR SECP256K1_BUILD_EXAMPLES) - enable_testing() -endif() - set(SECP256K1_APPEND_CFLAGS "" CACHE STRING "Compiler flags that are appended to the command line after all other flags added by the build system. This variable is intended for debugging and special builds.") if(SECP256K1_APPEND_CFLAGS) # Appending to this low-level rule variable is the only way to From b8fe33332b7c6a7700f74be20c022fcc49753cd2 Mon Sep 17 00:00:00 2001 From: Eduardo Menges Mattje Date: Thu, 27 Jun 2024 11:46:48 -0300 Subject: [PATCH 392/557] cmake: Fixed O3 replacement --- CMakeLists.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 7e3465a75b..46abe06217 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -185,7 +185,7 @@ else() string(REGEX REPLACE "-DNDEBUG[ \t\r\n]*" "" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") string(REGEX REPLACE "-DNDEBUG[ \t\r\n]*" "" CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL}") # Prefer -O2 optimization level. (-O3 is CMake's default for Release for many compilers.) - string(REGEX REPLACE "-O3[ \t\r\n]*" "-O2" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") + string(REGEX REPLACE "-O3( |$)" "-O2\\1" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") endif() # Define custom "Coverage" build type. From 16685649d2a6e52f81659ec629bc4e603128c54c Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 1 Jul 2024 18:40:24 +0200 Subject: [PATCH 393/557] doc: Add convention for defaults --- CONTRIBUTING.md | 1 + 1 file changed, 1 insertion(+) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index 5fbf7332c9..a366d38b0e 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -49,6 +49,7 @@ In addition, libsecp256k1 tries to maintain the following coding conventions: * Operations involving secret data should be tested for being constant time with respect to the secrets (see [src/ctime_tests.c](src/ctime_tests.c)). * Local variables containing secret data should be cleared explicitly to try to delete secrets from memory. * Use `secp256k1_memcmp_var` instead of `memcmp` (see [#823](https://github.com/bitcoin-core/secp256k1/issues/823)). +* As a rule of thumb, the default values for configuration options should target standard desktop machines and align with Bitcoin Core's defaults, and the tests should mostly exercise the default configuration (see [#1549](https://github.com/bitcoin-core/secp256k1/issues/1549#issuecomment-2200559257)). #### Style conventions From 9420eece24117fc55540ab6d8bbfaca6b834b761 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 1 Jul 2024 22:46:05 +0100 Subject: [PATCH 394/557] cmake: Bump CMake minimum required version up to 3.16 --- .github/workflows/ci.yml | 2 +- CMakeLists.txt | 9 +-------- README.md | 2 +- doc/release-process.md | 2 +- 4 files changed, 4 insertions(+), 11 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index ade94e1eec..ded5df3631 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -864,5 +864,5 @@ jobs: CI_BUILD: ${{ runner.temp }}/${{ github.run_id }}${{ github.action }}/build CI_INSTALL: ${{ runner.temp }}/${{ github.run_id }}${{ github.action }}/install run: | - cmake -B ${{ env.CI_BUILD }} -DCMAKE_INSTALL_PREFIX=${{ env.CI_INSTALL }} && cmake --build ${{ env.CI_BUILD }} --target install && ls -RlAh ${{ env.CI_INSTALL }} + cmake -B ${{ env.CI_BUILD }} -DCMAKE_INSTALL_PREFIX=${{ env.CI_INSTALL }} && cmake --build ${{ env.CI_BUILD }} && cmake --install ${{ env.CI_BUILD }} && ls -RlAh ${{ env.CI_INSTALL }} gcc -o ecdsa examples/ecdsa.c -I ${{ env.CI_INSTALL }}/include -L ${{ env.CI_INSTALL }}/lib*/ -l secp256k1 -Wl,-rpath,"${{ env.CI_INSTALL }}/lib",-rpath,"${{ env.CI_INSTALL }}/lib64" && ./ecdsa diff --git a/CMakeLists.txt b/CMakeLists.txt index 46abe06217..8d1e8e40f8 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,11 +1,4 @@ -cmake_minimum_required(VERSION 3.13) - -if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.15) - # MSVC runtime library flags are selected by the CMAKE_MSVC_RUNTIME_LIBRARY abstraction. - cmake_policy(SET CMP0091 NEW) - # MSVC warning flags are not in CMAKE__FLAGS by default. - cmake_policy(SET CMP0092 NEW) -endif() +cmake_minimum_required(VERSION 3.16) project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of diff --git a/README.md b/README.md index e8d4123ab9..6a2ea4386b 100644 --- a/README.md +++ b/README.md @@ -82,7 +82,7 @@ To maintain a pristine source tree, CMake encourages to perform an out-of-source $ cmake .. $ cmake --build . $ ctest # run the test suite - $ sudo cmake --build . --target install # optional + $ sudo cmake --install . # optional To compile optional modules (such as Schnorr signatures), you need to run `cmake` with additional flags (such as `-DSECP256K1_ENABLE_MODULE_SCHNORRSIG=ON`). Run `cmake .. -LH` to see the full list of available flags. diff --git a/doc/release-process.md b/doc/release-process.md index cdf62430df..c37f519df1 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -31,7 +31,7 @@ Perform these checks when reviewing the release PR (see below): ```shell dir=$(mktemp -d) build=$(mktemp -d) - cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build --target install && ls -RlAh $dir + cmake -B $build -DCMAKE_INSTALL_PREFIX=$dir && cmake --build $build && cmake --install $build && ls -RlAh $dir gcc -o ecdsa examples/ecdsa.c -I $dir/include -L $dir/lib*/ -l secp256k1 -Wl,-rpath,"$dir/lib",-rpath,"$dir/lib64" && ./ecdsa ``` 4. Use the [`check-abi.sh`](/tools/check-abi.sh) tool to verify that there are no unexpected ABI incompatibilities and that the version number and the release notes accurately reflect all potential ABI changes. To run this tool, the `abi-dumper` and `abi-compliance-checker` packages are required. From d94a9273f82aeb468f9c48f6da5ee9abc64c024a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 1 Jul 2024 20:41:36 +0100 Subject: [PATCH 395/557] build: Adjust the default size of the precomputed table for signing The new default value of the precomputed table for signing is aligned with Bitcoin Core's default. See: https://github.com/bitcoin/bitcoin/commit/a057869aa3c42457570765966cb66accb2375b13 --- CMakeLists.txt | 2 +- configure.ac | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 8d1e8e40f8..7a87686056 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -90,7 +90,7 @@ include(CheckStringOptionValue) check_string_option_value(SECP256K1_ECMULT_WINDOW_SIZE) add_compile_definitions(ECMULT_WINDOW_SIZE=${SECP256K1_ECMULT_WINDOW_SIZE}) -set(SECP256K1_ECMULT_GEN_KB 22 CACHE STRING "The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms). Larger values result in possibly better signing or key generation performance at the cost of a larger table. Valid choices are 2, 22, 86. The default value is a reasonable setting for desktop machines (currently 22). [default=22]") +set(SECP256K1_ECMULT_GEN_KB 86 CACHE STRING "The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms). Larger values result in possibly better signing or key generation performance at the cost of a larger table. Valid choices are 2, 22, 86. The default value is a reasonable setting for desktop machines (currently 86). [default=86]") set_property(CACHE SECP256K1_ECMULT_GEN_KB PROPERTY STRINGS 2 22 86) check_string_option_value(SECP256K1_ECMULT_GEN_KB) if(SECP256K1_ECMULT_GEN_KB EQUAL 2) diff --git a/configure.ac b/configure.ac index adae189787..24918885f7 100644 --- a/configure.ac +++ b/configure.ac @@ -216,9 +216,9 @@ AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE], AC_ARG_WITH([ecmult-gen-kb], [AS_HELP_STRING([--with-ecmult-gen-kb=2|22|86], [The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms).] [Larger values result in possibly better signing/keygeneration performance at the cost of a larger table.] -[The default value is a reasonable setting for desktop machines (currently 22). [default=22]] +[The default value is a reasonable setting for desktop machines (currently 86). [default=86]] )], -[set_ecmult_gen_kb=$withval], [set_ecmult_gen_kb=22]) +[set_ecmult_gen_kb=$withval], [set_ecmult_gen_kb=86]) AC_ARG_WITH([valgrind], [AS_HELP_STRING([--with-valgrind=yes|no|auto], [Build with extra checks for running inside Valgrind [default=auto]] From e2af491263e2f7e086dc7f1925d86660ff265dc6 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 1 Jul 2024 20:44:23 +0100 Subject: [PATCH 396/557] ci: Switch to the new default value of the precomputed table for signing --- .github/workflows/ci.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index ded5df3631..56a8c9f667 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -22,7 +22,7 @@ env: BUILD: 'check' ### secp256k1 config ECMULTWINDOW: 15 - ECMULTGENKB: 22 + ECMULTGENKB: 86 ASM: 'no' WIDEMUL: 'auto' WITH_VALGRIND: 'yes' From af551ab9db09a3e4f2d06f68cf3e140fb1acfc4b Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 22 Jul 2024 07:24:31 +0000 Subject: [PATCH 397/557] tests: do not use functions from extrakeys module This fixes a bug introduced in 7d2591ce12d8a9b85f210cf9d678e91cee125ee9 that prevented compiling the library without enabling the extrakeys module. --- CHANGELOG.md | 3 +++ src/tests.c | 14 +++----------- src/testutil.h | 6 ++++++ 3 files changed, 12 insertions(+), 11 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 200653eba5..4a02e3fcf6 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 #### Added - Added usage example for an ElligatorSwift key exchange. +#### Fixed +- Fixed compilation when the extrakeys module is disabled. + ## [0.5.0] - 2024-05-06 #### Added diff --git a/src/tests.c b/src/tests.c index 6b401e52c0..70c15f870b 100644 --- a/src/tests.c +++ b/src/tests.c @@ -6609,14 +6609,6 @@ static void permute(size_t *arr, size_t n) { } } -static void rand_pk(secp256k1_pubkey *pk) { - unsigned char seckey[32]; - secp256k1_keypair keypair; - testrand256(seckey); - CHECK(secp256k1_keypair_create(CTX, &keypair, seckey) == 1); - CHECK(secp256k1_keypair_pub(CTX, pk, &keypair) == 1); -} - static void test_sort_api(void) { secp256k1_pubkey pks[2]; const secp256k1_pubkey *pks_ptr[2]; @@ -6624,8 +6616,8 @@ static void test_sort_api(void) { pks_ptr[0] = &pks[0]; pks_ptr[1] = &pks[1]; - rand_pk(&pks[0]); - rand_pk(&pks[1]); + testutil_random_pubkey_test(&pks[0]); + testutil_random_pubkey_test(&pks[1]); CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, 2) == 1); CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_sort(CTX, NULL, 2)); @@ -6678,7 +6670,7 @@ static void test_sort(void) { int j; const secp256k1_pubkey *pk_ptr[5]; for (j = 0; j < 5; j++) { - rand_pk(&pk[j]); + testutil_random_pubkey_test(&pk[j]); pk_ptr[j] = &pk[j]; } secp256k1_ec_pubkey_sort(CTX, pk_ptr, 5); diff --git a/src/testutil.h b/src/testutil.h index 8296a5fb99..fc56854dd3 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -107,6 +107,12 @@ static void testutil_random_gej_test(secp256k1_gej *gej) { testutil_random_ge_jacobian_test(gej, &ge); } +static void testutil_random_pubkey_test(secp256k1_pubkey *pk) { + secp256k1_ge ge; + testutil_random_ge_test(&ge); + secp256k1_pubkey_save(pk, &ge); +} + static void testutil_random_scalar_order_test(secp256k1_scalar *num) { do { unsigned char b32[32]; From 763d938cf0e68ef6dc52fda4f45cc03c5d2e31f0 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 22 Jul 2024 07:36:22 +0000 Subject: [PATCH 398/557] ci: only enable extrakeys module when schnorrsig is enabled --- .cirrus.yml | 3 +++ .github/workflows/ci.yml | 51 ++++++++++++++++++++++++---------------- ci/ci.sh | 3 ++- 3 files changed, 36 insertions(+), 21 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 4bd15511a4..0c1e01dc95 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -20,6 +20,7 @@ env: EXPERIMENTAL: no ECDH: no RECOVERY: no + EXTRAKEYS: no SCHNORRSIG: no ELLSWIFT: no ### test options @@ -66,6 +67,7 @@ task: env: ECDH: yes RECOVERY: yes + EXTRAKEYS: yes SCHNORRSIG: yes ELLSWIFT: yes matrix: @@ -82,6 +84,7 @@ task: env: ECDH: yes RECOVERY: yes + EXTRAKEYS: yes SCHNORRSIG: yes ELLSWIFT: yes WRAPPER_CMD: 'valgrind --error-exitcode=42' diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 56a8c9f667..e238f3b7a1 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -31,6 +31,7 @@ env: EXPERIMENTAL: 'no' ECDH: 'no' RECOVERY: 'no' + EXTRAKEYS: 'no' SCHNORRSIG: 'no' ELLSWIFT: 'no' ### test options @@ -71,18 +72,18 @@ jobs: matrix: configuration: - env_vars: { WIDEMUL: 'int64', RECOVERY: 'yes' } - - env_vars: { WIDEMUL: 'int64', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int64', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - env_vars: { WIDEMUL: 'int128' } - - env_vars: { WIDEMUL: 'int128_struct', ELLSWIFT: 'yes' } - - env_vars: { WIDEMUL: 'int128', RECOVERY: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - env_vars: { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes' } - - env_vars: { WIDEMUL: 'int128', ASM: 'x86_64', ELLSWIFT: 'yes' } - - env_vars: { RECOVERY: 'yes', SCHNORRSIG: 'yes' } - - env_vars: { CTIMETESTS: 'no', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', CPPFLAGS: '-DVERIFY' } + - env_vars: { WIDEMUL: 'int128_struct', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int128', RECOVERY: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes' } + - env_vars: { WIDEMUL: 'int128', ASM: 'x86_64', ELLSWIFT: 'yes' } + - env_vars: { RECOVERY: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes' } + - env_vars: { CTIMETESTS: 'no', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', CPPFLAGS: '-DVERIFY' } - env_vars: { BUILD: 'distcheck', WITH_VALGRIND: 'no', CTIMETESTS: 'no', BENCH: 'no' } - env_vars: { CPPFLAGS: '-DDETERMINISTIC' } - env_vars: { CFLAGS: '-O0', CTIMETESTS: 'no' } - - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - env_vars: { ECMULTGENKB: 2, ECMULTWINDOW: 2 } - env_vars: { ECMULTGENKB: 86, ECMULTWINDOW: 4 } cc: @@ -139,6 +140,7 @@ jobs: HOST: 'i686-linux-gnu' ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CC: ${{ matrix.cc }} @@ -183,6 +185,7 @@ jobs: WITH_VALGRIND: 'no' ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -234,6 +237,7 @@ jobs: WITH_VALGRIND: 'no' ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -279,6 +283,7 @@ jobs: WITH_VALGRIND: 'no' ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -334,6 +339,7 @@ jobs: WITH_VALGRIND: 'no' ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -386,6 +392,7 @@ jobs: WRAPPER_CMD: 'valgrind --error-exitcode=42' ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -437,6 +444,7 @@ jobs: env: ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -501,6 +509,7 @@ jobs: env: ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CC: 'clang' @@ -547,6 +556,7 @@ jobs: WITH_VALGRIND: 'no' ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -605,15 +615,15 @@ jobs: fail-fast: false matrix: env_vars: - - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128_struct', ECMULTGENKB: 2, ECMULTWINDOW: 4 } - - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY', CTIMETESTS: 'no' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY', CTIMETESTS: 'no' } - BUILD: 'distcheck' steps: @@ -666,13 +676,13 @@ jobs: fail-fast: false matrix: env_vars: - - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128_struct', ECMULTGENPRECISION: 2, ECMULTWINDOW: 4 } - - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY' } - BUILD: 'distcheck' steps: @@ -778,6 +788,7 @@ jobs: WERROR_CFLAGS: ECDH: 'yes' RECOVERY: 'yes' + EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' diff --git a/ci/ci.sh b/ci/ci.sh index c7d2e9e4ea..a6c608c29c 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -13,7 +13,7 @@ print_environment() { # does not rely on bash. for var in WERROR_CFLAGS MAKEFLAGS BUILD \ ECMULTWINDOW ECMULTGENKB ASM WIDEMUL WITH_VALGRIND EXTRAFLAGS \ - EXPERIMENTAL ECDH RECOVERY SCHNORRSIG ELLSWIFT \ + EXPERIMENTAL ECDH RECOVERY EXTRAKEYS SCHNORRSIG ELLSWIFT \ SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS\ EXAMPLES \ HOST WRAPPER_CMD \ @@ -77,6 +77,7 @@ esac --with-ecmult-gen-kb="$ECMULTGENKB" \ --enable-module-ecdh="$ECDH" --enable-module-recovery="$RECOVERY" \ --enable-module-ellswift="$ELLSWIFT" \ + --enable-module-extrakeys="$EXTRAKEYS" \ --enable-module-schnorrsig="$SCHNORRSIG" \ --enable-examples="$EXAMPLES" \ --enable-ctime-tests="$CTIMETESTS" \ From 759bd4bbc8285fc6b99dae058b03f43353ab282e Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 1 Aug 2024 15:55:01 +0000 Subject: [PATCH 399/557] doc: mention `needs-changelog` github label in release process --- doc/release-process.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/doc/release-process.md b/doc/release-process.md index c37f519df1..a64bae0f0d 100644 --- a/doc/release-process.md +++ b/doc/release-process.md @@ -44,7 +44,8 @@ Perform these checks when reviewing the release PR (see below): 1. Open a PR to the master branch with a commit (using message `"release: prepare for $MAJOR.$MINOR.$PATCH"`, for example) that * finalizes the release notes in [CHANGELOG.md](../CHANGELOG.md) by * adding a section for the release (make sure that the version number is a link to a diff between the previous and new version), - * removing the `[Unreleased]` section header, and + * removing the `[Unreleased]` section header, + * ensuring that the release notes are not missing entries (check the `needs-changelog` label on github), and * including an entry for `### ABI Compatibility` if it doesn't exist, * sets `_PKG_VERSION_IS_RELEASE` to `true` in `configure.ac`, and, * if this is not a patch release, From 5770226176568a0c11a821c83921180c76d37028 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 1 Aug 2024 16:57:45 +0000 Subject: [PATCH 400/557] changelog: clarify CMake option --- CHANGELOG.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 4a02e3fcf6..2baab9d551 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -20,7 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 #### Changed - The implementation of the point multiplication algorithm used for signing and public key generation was changed, resulting in improved performance for those operations. - - The related configure option `--ecmult-gen-precision` was replaced with `--ecmult-gen-kb` (`ECMULT_GEN_KB` for CMake). + - The related configure option `--ecmult-gen-precision` was replaced with `--ecmult-gen-kb` (`SECP256K1_ECMULT_GEN_KB` for CMake). - This changes the supported precomputed table sizes for these operations. The new supported sizes are 2 KiB, 22 KiB, or 86 KiB (while the old supported sizes were 32 KiB, 64 KiB, or 512 KiB). #### ABI Compatibility From 40d87b8e458b6546dd307119f754df23ffdfd359 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 1 Aug 2024 15:28:52 +0000 Subject: [PATCH 401/557] release: prepare for 0.5.1 --- CHANGELOG.md | 13 ++++++++++--- configure.ac | 2 +- 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 2baab9d551..0868e75480 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,13 +5,20 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.5.1] - 2024-08-01 #### Added - Added usage example for an ElligatorSwift key exchange. +#### Changed + - The default size of the precomputed table for signing was changed from 22 KiB to 86 KiB. The size can be changed with the configure option `--ecmult-gen-kb` (`SECP256K1_ECMULT_GEN_KB` for CMake). + - "auto" is no longer an accepted value for the `--with-ecmult-window` and `--with-ecmult-gen-kb` configure options (this also applies to `SECP256K1_ECMULT_WINDOW_SIZE` and `SECP256K1_ECMULT_GEN_KB` in CMake). To achieve the same configuration as previously provided by the "auto" value, omit setting the configure option explicitly. + #### Fixed -- Fixed compilation when the extrakeys module is disabled. + - Fixed compilation when the extrakeys module is disabled. + +#### ABI Compatibility +The ABI is backward compatible with versions 0.5.0, 0.4.x and 0.3.x. ## [0.5.0] - 2024-05-06 @@ -134,7 +141,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...HEAD +[0.5.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...v0.5.1 [0.5.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...v0.5.0 [0.4.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...v0.4.1 [0.4.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.3.2...v0.4.0 diff --git a/configure.ac b/configure.ac index 24918885f7..6c4c11ddcd 100644 --- a/configure.ac +++ b/configure.ac @@ -6,7 +6,7 @@ AC_PREREQ([2.60]) define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 5) define(_PKG_VERSION_PATCH, 1) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: From c3e40d75db5d028c954ab5f31e89d39c1ce3a12b Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 1 Aug 2024 19:23:27 +0000 Subject: [PATCH 402/557] release cleanup: bump version after 0.5.1 --- CHANGELOG.md | 3 +++ CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 0868e75480..fb82940627 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.5.1] - 2024-08-01 #### Added @@ -141,6 +143,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.1...HEAD [0.5.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...v0.5.1 [0.5.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...v0.5.0 [0.4.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...v0.4.1 diff --git a/CMakeLists.txt b/CMakeLists.txt index 7a87686056..4ca8cbe8e3 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -4,7 +4,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.5.1 + VERSION 0.5.2 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -27,7 +27,7 @@ endif() # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 4) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 2) set(${PROJECT_NAME}_LIB_VERSION_AGE 2) set(CMAKE_C_STANDARD 90) diff --git a/configure.ac b/configure.ac index 6c4c11ddcd..6841543f59 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 5) -define(_PKG_VERSION_PATCH, 1) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 2) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 4) -define(_LIB_VERSION_REVISION, 1) +define(_LIB_VERSION_REVISION, 2) define(_LIB_VERSION_AGE, 2) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 7057d3c9af4c136f9bcbf74dce7fda30690b64f8 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 2 Aug 2024 14:03:44 +0100 Subject: [PATCH 403/557] ci: Silent Homebrew's noisy reinstall warnings --- .github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index e238f3b7a1..0fc104d29b 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -632,7 +632,7 @@ jobs: - name: Install Homebrew packages run: | - brew install automake libtool gcc + brew install --quiet automake libtool gcc ln -s $(brew --prefix gcc)/bin/gcc-?? /usr/local/bin/gcc - name: Install and cache Valgrind @@ -691,7 +691,7 @@ jobs: - name: Install Homebrew packages run: | - brew install automake libtool gcc + brew install --quiet automake libtool gcc ln -s $(brew --prefix gcc)/bin/gcc-?? /usr/local/bin/gcc - name: CI script From e34b47673085208ea863aed26c4a777b3e0b11a4 Mon Sep 17 00:00:00 2001 From: maflcko <6399679+maflcko@users.noreply.github.com> Date: Mon, 12 Aug 2024 19:41:04 +0200 Subject: [PATCH 404/557] ci: Bump GCC_SNAPSHOT_MAJOR to 15 --- ci/linux-debian.Dockerfile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 5ce715b41b..241bfa9719 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -40,7 +40,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ apt-get clean && rm -rf /var/lib/apt/lists/* # Build and install gcc snapshot -ARG GCC_SNAPSHOT_MAJOR=14 +ARG GCC_SNAPSHOT_MAJOR=15 RUN apt-get update && apt-get install --no-install-recommends -y wget libgmp-dev libmpfr-dev libmpc-dev flex && \ mkdir gcc && cd gcc && \ wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --level 1 --no-directories "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}" && \ From 9b0f37bff1befbdccec0c7199aae98c07611f974 Mon Sep 17 00:00:00 2001 From: Epic Curious <109078515+epiccurious@users.noreply.github.com> Date: Tue, 13 Aug 2024 16:06:24 -0400 Subject: [PATCH 405/557] fix: remove duplicate 'the' from header file comment --- include/secp256k1_ellswift.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index ae37287f82..0d1293e94f 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -35,7 +35,7 @@ extern "C" { * * If the Y coordinate is relevant, it is given the same parity as t. * - * Changes w.r.t. the the paper: + * Changes w.r.t. the paper: * - The u=0, t=0, and u^3+t^2+7=0 conditions result in decoding to the point * at infinity in the paper. Here they are remapped to finite points. * - The paper uses an additional encoding bit for the parity of y. Here the From fa67b6752d8ba3e4c41f6c36b1c6b94a21770419 Mon Sep 17 00:00:00 2001 From: MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz> Date: Thu, 15 Aug 2024 17:43:29 +0200 Subject: [PATCH 406/557] refactor: Use array initialization for unterminated strings The previous code is correct and harmless to initialize an array with a non-terminated character sequence using a string literal. However, it requires exactly specifying the array size, which can be cumbersome. Also, GCC-15 may issue the -Wunterminated-string-initialization warning. [1] Fix both issues by using array initialization. This refactoring commit does not change behavior. [1] Example warning: src/modules/schnorrsig/main_impl.h:48:46: error: initializer-string for array of 'unsigned char' is too long [-Werror=unterminated-string-initialization] 48 | static const unsigned char bip340_algo[13] = "BIP0340/nonce"; | ^~~~~~~~~~~~~~~ --- examples/schnorr.c | 4 ++-- src/modules/ellswift/tests_impl.h | 6 +++--- src/modules/schnorrsig/main_impl.h | 2 +- src/modules/schnorrsig/tests_impl.h | 10 +++++----- src/testrand_impl.h | 2 +- 5 files changed, 12 insertions(+), 12 deletions(-) diff --git a/examples/schnorr.c b/examples/schnorr.c index b0409b986b..8d5d14bdaf 100644 --- a/examples/schnorr.c +++ b/examples/schnorr.c @@ -18,9 +18,9 @@ #include "examples_util.h" int main(void) { - unsigned char msg[12] = "Hello World!"; + unsigned char msg[] = {'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd', '!'}; unsigned char msg_hash[32]; - unsigned char tag[17] = "my_fancy_protocol"; + unsigned char tag[] = {'m', 'y', '_', 'f', 'a', 'n', 'c', 'y', '_', 'p', 'r', 'o', 't', 'o', 'c', 'o', 'l'}; unsigned char seckey[32]; unsigned char randomize[32]; unsigned char auxiliary_rand[32]; diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index ed5658f34c..3c314c9b50 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -406,9 +406,9 @@ void run_ellswift_tests(void) { /* Test hash initializers. */ { secp256k1_sha256 sha, sha_optimized; - static const unsigned char encode_tag[25] = "secp256k1_ellswift_encode"; - static const unsigned char create_tag[25] = "secp256k1_ellswift_create"; - static const unsigned char bip324_tag[26] = "bip324_ellswift_xonly_ecdh"; + static const unsigned char encode_tag[] = {'s', 'e', 'c', 'p', '2', '5', '6', 'k', '1', '_', 'e', 'l', 'l', 's', 'w', 'i', 'f', 't', '_', 'e', 'n', 'c', 'o', 'd', 'e'}; + static const unsigned char create_tag[] = {'s', 'e', 'c', 'p', '2', '5', '6', 'k', '1', '_', 'e', 'l', 'l', 's', 'w', 'i', 'f', 't', '_', 'c', 'r', 'e', 'a', 't', 'e'}; + static const unsigned char bip324_tag[] = {'b', 'i', 'p', '3', '2', '4', '_', 'e', 'l', 'l', 's', 'w', 'i', 'f', 't', '_', 'x', 'o', 'n', 'l', 'y', '_', 'e', 'c', 'd', 'h'}; /* Check that hash initialized by * secp256k1_ellswift_sha256_init_encode has the expected diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 26727e4651..57f7eadd3c 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -45,7 +45,7 @@ static void secp256k1_nonce_function_bip340_sha256_tagged_aux(secp256k1_sha256 * /* algo argument for nonce_function_bip340 to derive the nonce exactly as stated in BIP-340 * by using the correct tagged hash function. */ -static const unsigned char bip340_algo[13] = "BIP0340/nonce"; +static const unsigned char bip340_algo[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'n', 'o', 'n', 'c', 'e'}; static const unsigned char schnorrsig_extraparams_magic[4] = SECP256K1_SCHNORRSIG_EXTRAPARAMS_MAGIC; diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index aa4fc38270..2d716a01f8 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -21,9 +21,9 @@ static void nonce_function_bip340_bitflip(unsigned char **args, size_t n_flip, s } static void run_nonce_function_bip340_tests(void) { - unsigned char tag[13] = "BIP0340/nonce"; - unsigned char aux_tag[11] = "BIP0340/aux"; - unsigned char algo[13] = "BIP0340/nonce"; + unsigned char tag[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'n', 'o', 'n', 'c', 'e'}; + unsigned char aux_tag[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'a', 'u', 'x'}; + unsigned char algo[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'n', 'o', 'n', 'c', 'e'}; size_t algolen = sizeof(algo); secp256k1_sha256 sha; secp256k1_sha256 sha_optimized; @@ -158,7 +158,7 @@ static void test_schnorrsig_api(void) { /* Checks that hash initialized by secp256k1_schnorrsig_sha256_tagged has the * expected state. */ static void test_schnorrsig_sha256_tagged(void) { - unsigned char tag[17] = "BIP0340/challenge"; + unsigned char tag[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'c', 'h', 'a', 'l', 'l', 'e', 'n', 'g', 'e'}; secp256k1_sha256 sha; secp256k1_sha256 sha_optimized; @@ -806,7 +806,7 @@ static void test_schnorrsig_sign(void) { unsigned char sk[32]; secp256k1_xonly_pubkey pk; secp256k1_keypair keypair; - const unsigned char msg[32] = "this is a msg for a schnorrsig.."; + const unsigned char msg[] = {'t', 'h', 'i', 's', ' ', 'i', 's', ' ', 'a', ' ', 'm', 's', 'g', ' ', 'f', 'o', 'r', ' ', 'a', ' ', 's', 'c', 'h', 'n', 'o', 'r', 'r', 's', 'i', 'g', '.', '.'}; unsigned char sig[64]; unsigned char sig2[64]; unsigned char zeros64[64] = { 0 }; diff --git a/src/testrand_impl.h b/src/testrand_impl.h index 07564f7f3f..b84f5730a9 100644 --- a/src/testrand_impl.h +++ b/src/testrand_impl.h @@ -18,7 +18,7 @@ static uint64_t secp256k1_test_state[4]; SECP256K1_INLINE static void testrand_seed(const unsigned char *seed16) { - static const unsigned char PREFIX[19] = "secp256k1 test init"; + static const unsigned char PREFIX[] = {'s', 'e', 'c', 'p', '2', '5', '6', 'k', '1', ' ', 't', 'e', 's', 't', ' ', 'i', 'n', 'i', 't'}; unsigned char out32[32]; secp256k1_sha256 hash; int i; From 85e224dd97f521d704e9a2e41e686e43d90db631 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Sat, 6 Jan 2024 15:53:30 +0000 Subject: [PATCH 407/557] group: add ge_to_bytes and ge_from_bytes --- src/group.h | 8 ++++++++ src/group_impl.h | 22 ++++++++++++++++++++++ src/secp256k1.c | 16 ++-------------- src/tests.c | 18 ++++++++++++++++++ 4 files changed, 50 insertions(+), 14 deletions(-) diff --git a/src/group.h b/src/group.h index d81deb4264..0f5ec6fe47 100644 --- a/src/group.h +++ b/src/group.h @@ -174,6 +174,14 @@ static void secp256k1_ge_storage_cmov(secp256k1_ge_storage *r, const secp256k1_g /** Rescale a jacobian point by b which must be non-zero. Constant-time. */ static void secp256k1_gej_rescale(secp256k1_gej *r, const secp256k1_fe *b); +/** Convert a group element that is not infinity to a 64-byte array. The output + * array is platform-dependent. */ +static void secp256k1_ge_to_bytes(unsigned char *buf, const secp256k1_ge *a); + +/** Convert a 64-byte array into group element. This function assumes that the + * provided buffer correctly encodes a group element. */ +static void secp256k1_ge_from_bytes(secp256k1_ge *r, const unsigned char *buf); + /** Determine if a point (which is assumed to be on the curve) is in the correct (sub)group of the curve. * * In normal mode, the used group is secp256k1, which has cofactor=1 meaning that every point on the curve is in the diff --git a/src/group_impl.h b/src/group_impl.h index 537be32ff6..cb390ee8e7 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -7,6 +7,8 @@ #ifndef SECP256K1_GROUP_IMPL_H #define SECP256K1_GROUP_IMPL_H +#include + #include "field.h" #include "group.h" #include "util.h" @@ -941,4 +943,24 @@ static int secp256k1_ge_x_frac_on_curve_var(const secp256k1_fe *xn, const secp25 return secp256k1_fe_is_square_var(&r); } +static void secp256k1_ge_to_bytes(unsigned char *buf, const secp256k1_ge *a) { + secp256k1_ge_storage s; + + /* We require that the secp256k1_ge_storage type is exactly 64 bytes. + * This is formally not guaranteed by the C standard, but should hold on any + * sane compiler in the real world. */ + STATIC_ASSERT(sizeof(secp256k1_ge_storage) == 64); + VERIFY_CHECK(!secp256k1_ge_is_infinity(a)); + secp256k1_ge_to_storage(&s, a); + memcpy(buf, &s, 64); +} + +static void secp256k1_ge_from_bytes(secp256k1_ge *r, const unsigned char *buf) { + secp256k1_ge_storage s; + + STATIC_ASSERT(sizeof(secp256k1_ge_storage) == 64); + memcpy(&s, buf, 64); + secp256k1_ge_from_storage(r, &s); +} + #endif /* SECP256K1_GROUP_IMPL_H */ diff --git a/src/secp256k1.c b/src/secp256k1.c index 72d725a74e..8821718a7d 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -238,25 +238,13 @@ static SECP256K1_INLINE void secp256k1_declassify(const secp256k1_context* ctx, } static int secp256k1_pubkey_load(const secp256k1_context* ctx, secp256k1_ge* ge, const secp256k1_pubkey* pubkey) { - secp256k1_ge_storage s; - - /* We require that the secp256k1_ge_storage type is exactly 64 bytes. - * This is formally not guaranteed by the C standard, but should hold on any - * sane compiler in the real world. */ - STATIC_ASSERT(sizeof(secp256k1_ge_storage) == 64); - memcpy(&s, &pubkey->data[0], 64); - secp256k1_ge_from_storage(ge, &s); + secp256k1_ge_from_bytes(ge, pubkey->data); ARG_CHECK(!secp256k1_fe_is_zero(&ge->x)); return 1; } static void secp256k1_pubkey_save(secp256k1_pubkey* pubkey, secp256k1_ge* ge) { - secp256k1_ge_storage s; - - STATIC_ASSERT(sizeof(secp256k1_ge_storage) == 64); - VERIFY_CHECK(!secp256k1_ge_is_infinity(ge)); - secp256k1_ge_to_storage(&s, ge); - memcpy(&pubkey->data[0], &s, 64); + secp256k1_ge_to_bytes(pubkey->data, ge); } int secp256k1_ec_pubkey_parse(const secp256k1_context* ctx, secp256k1_pubkey* pubkey, const unsigned char *input, size_t inputlen) { diff --git a/src/tests.c b/src/tests.c index 70c15f870b..502161e94d 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3982,6 +3982,23 @@ static void test_add_neg_y_diff_x(void) { CHECK(secp256k1_gej_eq_ge_var(&sumj, &res)); } +static void test_ge_bytes(void) { + int i; + + for (i = 0; i < COUNT; i++) { + unsigned char buf[64]; + secp256k1_ge p, q; + + testutil_random_ge_test(&p); + + if (!secp256k1_ge_is_infinity(&p)) { + secp256k1_ge_to_bytes(buf, &p); + secp256k1_ge_from_bytes(&q, buf); + CHECK(secp256k1_ge_eq_var(&p, &q)); + } + } +} + static void run_ge(void) { int i; for (i = 0; i < COUNT * 32; i++) { @@ -3989,6 +4006,7 @@ static void run_ge(void) { } test_add_neg_y_diff_x(); test_intialized_inf(); + test_ge_bytes(); } static void test_gej_cmov(const secp256k1_gej *a, const secp256k1_gej *b) { From 421ed1b46ff018f33a497df913a11d20f8dd1acc Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 2 Sep 2024 21:41:03 +0100 Subject: [PATCH 408/557] cmake: Introduce `SECP256K1_APPEND_LDFLAGS` variable Downstream projects may include libsecp test executables in their test suites. In such cases, if a `-fsanitize=...` flag is passed via the `SECP256K1_APPEND_CFLAGS` variable, the same flag must also be passed to the linker. --- CMakeLists.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 4ca8cbe8e3..d5a7a2de39 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -276,6 +276,14 @@ if(SECP256K1_APPEND_CFLAGS) string(APPEND CMAKE_C_COMPILE_OBJECT " ${SECP256K1_APPEND_CFLAGS}") endif() +set(SECP256K1_APPEND_LDFLAGS "" CACHE STRING "Linker flags that are appended to the command line after all other flags added by the build system. This variable is intended for debugging and special builds.") +if(SECP256K1_APPEND_LDFLAGS) + # Appending to this low-level rule variable is the only way to + # guarantee that the flags appear at the end of the command line. + string(APPEND CMAKE_C_CREATE_SHARED_LIBRARY " ${SECP256K1_APPEND_LDFLAGS}") + string(APPEND CMAKE_C_LINK_EXECUTABLE " ${SECP256K1_APPEND_LDFLAGS}") +endif() + add_subdirectory(src) if(SECP256K1_BUILD_EXAMPLES) add_subdirectory(examples) @@ -355,6 +363,9 @@ endif() if(SECP256K1_APPEND_CFLAGS) message("SECP256K1_APPEND_CFLAGS ............... ${SECP256K1_APPEND_CFLAGS}") endif() +if(SECP256K1_APPEND_LDFLAGS) + message("SECP256K1_APPEND_LDFLAGS .............. ${SECP256K1_APPEND_LDFLAGS}") +endif() message("") if(print_msan_notice) message( From 292310fbb24bba324fdf3c47c90e5e576a3cb89d Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 9 Sep 2024 12:07:21 +0200 Subject: [PATCH 409/557] doc: fix typos in `secp256k1_ecdsa_{recoverable_,}signature` API description --- include/secp256k1.h | 2 +- include/secp256k1_recovery.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index cfbdd528c2..94a9a7a3a9 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -75,7 +75,7 @@ typedef struct { unsigned char data[64]; } secp256k1_pubkey; -/** Opaque data structured that holds a parsed ECDSA signature. +/** Opaque data structure that holds a parsed ECDSA signature. * * The exact representation of data inside is implementation defined and not * guaranteed to be portable between different platforms or versions. It is diff --git a/include/secp256k1_recovery.h b/include/secp256k1_recovery.h index 341b8bac63..78a3eee05c 100644 --- a/include/secp256k1_recovery.h +++ b/include/secp256k1_recovery.h @@ -7,7 +7,7 @@ extern "C" { #endif -/** Opaque data structured that holds a parsed ECDSA signature, +/** Opaque data structure that holds a parsed ECDSA signature, * supporting pubkey recovery. * * The exact representation of data inside is implementation defined and not From 447334cb06de229024161021cc79b3af32ce8b5c Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 24 Aug 2024 23:28:52 +0200 Subject: [PATCH 410/557] include: Avoid visibility("default") on Windows Fixes #1421. --- include/secp256k1.h | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index cfbdd528c2..41420ccf12 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -147,6 +147,15 @@ typedef int (*secp256k1_nonce_function)( * 1. If using Libtool, it defines DLL_EXPORT automatically. * 2. In other cases, SECP256K1_DLL_EXPORT must be defined. */ # define SECP256K1_API extern __declspec (dllexport) +# else + /* Building libsecp256k1 as a static library on Windows. + * No declspec is needed, and so we would want the non-Windows-specific + * logic below take care of this case. However, this may result in setting + * __attribute__ ((visibility("default"))), which is supposed to be a noop + * on Windows but may trigger warnings when compiling with -flto due to a + * bug in GCC, see + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116478 . */ +# define SECP256K1_API extern # endif /* The user must define SECP256K1_STATIC when consuming libsecp256k1 as a static * library on Windows. */ @@ -156,11 +165,12 @@ typedef int (*secp256k1_nonce_function)( # endif #endif #ifndef SECP256K1_API +/* All cases not captured by the Windows-specific logic. */ # if defined(__GNUC__) && (__GNUC__ >= 4) && defined(SECP256K1_BUILD) - /* Building libsecp256k1 on non-Windows using GCC or compatible. */ + /* Building libsecp256k1 using GCC or compatible. */ # define SECP256K1_API extern __attribute__ ((visibility ("default"))) # else - /* All cases not captured above. */ + /* Fall back to standard C's extern. */ # define SECP256K1_API extern # endif #endif From 26e4a7c2146d581af47f02fc69e0728c7adb3bd8 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 26 Jun 2024 00:29:50 +0100 Subject: [PATCH 411/557] cmake: Set top-level target output locations This change: 1. Collects build artifacts in dedicated locations. 2. Allows to run individual examples with a shared library on Windows. 3. Is compatible with Wine when testing cross-compiled Windows binaries on Linux. 4. Is compatible with integration the project into a larger project hierarchy. --- .github/workflows/ci.yml | 8 ++++---- CMakeLists.txt | 9 +++++++++ 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 0fc104d29b..71bb3e9e57 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -751,14 +751,14 @@ jobs: # Use the bash shell included with Git for Windows. shell: bash run: | - cd build/src/RelWithDebInfo && file *tests.exe bench*.exe libsecp256k1-*.dll || true + cd build/bin/RelWithDebInfo && file *tests.exe bench*.exe libsecp256k1-*.dll || true - name: Check run: | ctest -C RelWithDebInfo --test-dir build -j ([int]$env:NUMBER_OF_PROCESSORS + 1) - build\src\RelWithDebInfo\bench_ecmult.exe - build\src\RelWithDebInfo\bench_internal.exe - build\src\RelWithDebInfo\bench.exe + build\bin\RelWithDebInfo\bench_ecmult.exe + build\bin\RelWithDebInfo\bench_internal.exe + build\bin\RelWithDebInfo\bench.exe win64-native-headers: name: "x64 (MSVC): C++ (public headers)" diff --git a/CMakeLists.txt b/CMakeLists.txt index 3e2b779d98..0c4798f4b4 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -286,6 +286,15 @@ if(SECP256K1_APPEND_LDFLAGS) string(APPEND CMAKE_C_LINK_EXECUTABLE " ${SECP256K1_APPEND_LDFLAGS}") endif() +if(NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY) + set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin) +endif() +if(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY) + set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib) +endif() +if(NOT CMAKE_ARCHIVE_OUTPUT_DIRECTORY) + set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib) +endif() add_subdirectory(src) if(SECP256K1_BUILD_EXAMPLES) add_subdirectory(examples) From c232486d84e21ece78b6cc956cd233cdf1bf8eee Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 26 Jun 2024 00:44:02 +0100 Subject: [PATCH 412/557] Revert "cmake: Set `ENVIRONMENT` property for examples on Windows" This reverts commit 116d2ab3df630455f23a7b21f50237689879ecc0. --- examples/CMakeLists.txt | 7 ------- 1 file changed, 7 deletions(-) diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index fd1ebce395..a7a5adbf35 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -10,13 +10,6 @@ function(add_example name) ) set(test_name ${name}_example) add_test(NAME ${test_name} COMMAND ${target_name}) - if(BUILD_SHARED_LIBS AND MSVC) - # The DLL must reside either in the same folder where the executable is - # or somewhere in PATH. Using the latter option. - set_tests_properties(${test_name} PROPERTIES - ENVIRONMENT "PATH=$;$ENV{PATH}" - ) - endif() endfunction() add_example(ecdsa) From ef7ff03407fa79e7eab1b6771b77f72828e63636 Mon Sep 17 00:00:00 2001 From: Russell O'Connor Date: Wed, 25 Sep 2024 11:05:23 -0400 Subject: [PATCH 413/557] f can never equal -m In fact, before reaching this particular VERIFY_CHECK, we had already successfully passed through VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, -1) > 0); /* f > -modulus */ ensuring that f is not -m. --- src/modinv32_impl.h | 10 ++++------ src/modinv64_impl.h | 10 ++++------ 2 files changed, 8 insertions(+), 12 deletions(-) diff --git a/src/modinv32_impl.h b/src/modinv32_impl.h index 75eb354ff0..981d2abc6d 100644 --- a/src/modinv32_impl.h +++ b/src/modinv32_impl.h @@ -565,13 +565,12 @@ static void secp256k1_modinv32(secp256k1_modinv32_signed30 *x, const secp256k1_m /* g == 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, 9, &SECP256K1_SIGNED30_ONE, 0) == 0); - /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ + /* |f| == 1, or (x == 0 and d == 0 and f == modulus) */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, 9, &SECP256K1_SIGNED30_ONE, -1) == 0 || secp256k1_modinv32_mul_cmp_30(&f, 9, &SECP256K1_SIGNED30_ONE, 1) == 0 || (secp256k1_modinv32_mul_cmp_30(x, 9, &SECP256K1_SIGNED30_ONE, 0) == 0 && secp256k1_modinv32_mul_cmp_30(&d, 9, &SECP256K1_SIGNED30_ONE, 0) == 0 && - (secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, 1) == 0 || - secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, -1) == 0))); + secp256k1_modinv32_mul_cmp_30(&f, 9, &modinfo->modulus, 1) == 0)); /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv32_normalize_30(&d, f.v[8], modinfo); @@ -643,13 +642,12 @@ static void secp256k1_modinv32_var(secp256k1_modinv32_signed30 *x, const secp256 /* g == 0 */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&g, len, &SECP256K1_SIGNED30_ONE, 0) == 0); - /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ + /* |f| == 1, or (x == 0 and d == 0 and f == modulus) */ VERIFY_CHECK(secp256k1_modinv32_mul_cmp_30(&f, len, &SECP256K1_SIGNED30_ONE, -1) == 0 || secp256k1_modinv32_mul_cmp_30(&f, len, &SECP256K1_SIGNED30_ONE, 1) == 0 || (secp256k1_modinv32_mul_cmp_30(x, 9, &SECP256K1_SIGNED30_ONE, 0) == 0 && secp256k1_modinv32_mul_cmp_30(&d, 9, &SECP256K1_SIGNED30_ONE, 0) == 0 && - (secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 1) == 0 || - secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, -1) == 0))); + secp256k1_modinv32_mul_cmp_30(&f, len, &modinfo->modulus, 1) == 0)); /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv32_normalize_30(&d, f.v[len - 1], modinfo); diff --git a/src/modinv64_impl.h b/src/modinv64_impl.h index 0dc1e80696..548787bedf 100644 --- a/src/modinv64_impl.h +++ b/src/modinv64_impl.h @@ -621,13 +621,12 @@ static void secp256k1_modinv64(secp256k1_modinv64_signed62 *x, const secp256k1_m /* g == 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, 5, &SECP256K1_SIGNED62_ONE, 0) == 0); - /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ + /* |f| == 1, or (x == 0 and d == 0 and f == modulus) */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, 5, &SECP256K1_SIGNED62_ONE, -1) == 0 || secp256k1_modinv64_mul_cmp_62(&f, 5, &SECP256K1_SIGNED62_ONE, 1) == 0 || (secp256k1_modinv64_mul_cmp_62(x, 5, &SECP256K1_SIGNED62_ONE, 0) == 0 && secp256k1_modinv64_mul_cmp_62(&d, 5, &SECP256K1_SIGNED62_ONE, 0) == 0 && - (secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, 1) == 0 || - secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, -1) == 0))); + secp256k1_modinv64_mul_cmp_62(&f, 5, &modinfo->modulus, 1) == 0)); /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv64_normalize_62(&d, f.v[4], modinfo); @@ -698,13 +697,12 @@ static void secp256k1_modinv64_var(secp256k1_modinv64_signed62 *x, const secp256 /* g == 0 */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&g, len, &SECP256K1_SIGNED62_ONE, 0) == 0); - /* |f| == 1, or (x == 0 and d == 0 and |f|=modulus) */ + /* |f| == 1, or (x == 0 and d == 0 and f == modulus) */ VERIFY_CHECK(secp256k1_modinv64_mul_cmp_62(&f, len, &SECP256K1_SIGNED62_ONE, -1) == 0 || secp256k1_modinv64_mul_cmp_62(&f, len, &SECP256K1_SIGNED62_ONE, 1) == 0 || (secp256k1_modinv64_mul_cmp_62(x, 5, &SECP256K1_SIGNED62_ONE, 0) == 0 && secp256k1_modinv64_mul_cmp_62(&d, 5, &SECP256K1_SIGNED62_ONE, 0) == 0 && - (secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 1) == 0 || - secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, -1) == 0))); + secp256k1_modinv64_mul_cmp_62(&f, len, &modinfo->modulus, 1) == 0)); /* Optionally negate d, normalize to [0,modulus), and return it. */ secp256k1_modinv64_normalize_62(&d, f.v[len - 1], modinfo); From c8fbdb1b9720bb78270319e34d6422587daf31b3 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 5 Jun 2024 13:48:21 +0000 Subject: [PATCH 414/557] group: add ge_to_bytes_ext and ge_from_bytes_ext --- src/group.h | 8 ++++++++ src/group_impl.h | 17 +++++++++++++++++ src/tests.c | 15 +++++++++++++-- 3 files changed, 38 insertions(+), 2 deletions(-) diff --git a/src/group.h b/src/group.h index 0f5ec6fe47..992ff5c98c 100644 --- a/src/group.h +++ b/src/group.h @@ -182,6 +182,14 @@ static void secp256k1_ge_to_bytes(unsigned char *buf, const secp256k1_ge *a); * provided buffer correctly encodes a group element. */ static void secp256k1_ge_from_bytes(secp256k1_ge *r, const unsigned char *buf); +/** Convert a group element (that is allowed to be infinity) to a 64-byte + * array. The output array is platform-dependent. */ +static void secp256k1_ge_to_bytes_ext(unsigned char *data, const secp256k1_ge *ge); + +/** Convert a 64-byte array into a group element. This function assumes that the + * provided buffer is the output of secp256k1_ge_to_bytes_ext. */ +static void secp256k1_ge_from_bytes_ext(secp256k1_ge *ge, const unsigned char *data); + /** Determine if a point (which is assumed to be on the curve) is in the correct (sub)group of the curve. * * In normal mode, the used group is secp256k1, which has cofactor=1 meaning that every point on the curve is in the diff --git a/src/group_impl.h b/src/group_impl.h index cb390ee8e7..2e096f4147 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -963,4 +963,21 @@ static void secp256k1_ge_from_bytes(secp256k1_ge *r, const unsigned char *buf) { secp256k1_ge_from_storage(r, &s); } +static void secp256k1_ge_to_bytes_ext(unsigned char *data, const secp256k1_ge *ge) { + if (secp256k1_ge_is_infinity(ge)) { + memset(data, 0, 64); + } else { + secp256k1_ge_to_bytes(data, ge); + } +} + +static void secp256k1_ge_from_bytes_ext(secp256k1_ge *ge, const unsigned char *data) { + static const unsigned char zeros[64] = { 0 }; + if (secp256k1_memcmp_var(data, zeros, sizeof(zeros)) == 0) { + secp256k1_ge_set_infinity(ge); + } else { + secp256k1_ge_from_bytes(ge, data); + } +} + #endif /* SECP256K1_GROUP_IMPL_H */ diff --git a/src/tests.c b/src/tests.c index 502161e94d..935a03ebcf 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3985,17 +3985,28 @@ static void test_add_neg_y_diff_x(void) { static void test_ge_bytes(void) { int i; - for (i = 0; i < COUNT; i++) { + for (i = 0; i < COUNT + 1; i++) { unsigned char buf[64]; secp256k1_ge p, q; - testutil_random_ge_test(&p); + if (i == 0) { + secp256k1_ge_set_infinity(&p); + } else { + testutil_random_ge_test(&p); + } if (!secp256k1_ge_is_infinity(&p)) { secp256k1_ge_to_bytes(buf, &p); + secp256k1_ge_from_bytes(&q, buf); CHECK(secp256k1_ge_eq_var(&p, &q)); + + secp256k1_ge_from_bytes_ext(&q, buf); + CHECK(secp256k1_ge_eq_var(&p, &q)); } + secp256k1_ge_to_bytes_ext(buf, &p); + secp256k1_ge_from_bytes_ext(&q, buf); + CHECK(secp256k1_ge_eq_var(&p, &q)); } } From 0be79660f388df612f2ddbf3f82122e9a35ec02f Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 25 Sep 2024 16:03:14 +0000 Subject: [PATCH 415/557] util: add constant-time is_zero_array function --- src/tests.c | 13 +++++++++++++ src/util.h | 16 ++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/src/tests.c b/src/tests.c index 935a03ebcf..544ad7633f 100644 --- a/src/tests.c +++ b/src/tests.c @@ -7467,6 +7467,18 @@ static void run_secp256k1_memczero_test(void) { CHECK(secp256k1_memcmp_var(buf1, buf2, sizeof(buf1)) == 0); } + +static void run_secp256k1_is_zero_array_test(void) { + unsigned char buf1[3] = {0, 1}; + unsigned char buf2[3] = {1, 0}; + + CHECK(secp256k1_is_zero_array(buf1, 0) == 1); + CHECK(secp256k1_is_zero_array(buf1, 1) == 1); + CHECK(secp256k1_is_zero_array(buf1, 2) == 0); + CHECK(secp256k1_is_zero_array(buf2, 1) == 0); + CHECK(secp256k1_is_zero_array(buf2, 2) == 0); +} + static void run_secp256k1_byteorder_tests(void) { { const uint32_t x = 0xFF03AB45; @@ -7806,6 +7818,7 @@ int main(int argc, char **argv) { /* util tests */ run_secp256k1_memczero_test(); + run_secp256k1_is_zero_array_test(); run_secp256k1_byteorder_tests(); run_cmov_tests(); diff --git a/src/util.h b/src/util.h index ca73752ccc..49af867a46 100644 --- a/src/util.h +++ b/src/util.h @@ -239,6 +239,22 @@ static SECP256K1_INLINE int secp256k1_memcmp_var(const void *s1, const void *s2, return 0; } +/* Return 1 if all elements of array s are 0 and otherwise return 0. + * Constant-time. */ +static SECP256K1_INLINE int secp256k1_is_zero_array(const unsigned char *s, size_t len) { + unsigned char acc = 0; + int ret; + size_t i; + + for (i = 0; i < len; i++) { + acc |= s[i]; + } + ret = (acc == 0); + /* acc may contain secret values. Try to explicitly clear it. */ + acc = 0; + return ret; +} + /** If flag is true, set *r equal to *a; otherwise leave it. Constant-time. Both *r and *a must be initialized and non-negative.*/ static SECP256K1_INLINE void secp256k1_int_cmov(int *r, const int *a, int flag) { unsigned int mask0, mask1, r_masked, a_masked; From f411841a46b15aac6e7c403fc740e9c056cfe0a2 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Sat, 6 Jan 2024 19:31:18 +0000 Subject: [PATCH 416/557] Add module "musig" that implements MuSig2 multi-signatures (BIP 327) --- .cirrus.yml | 3 + .github/workflows/ci.yml | 37 +- .gitignore | 1 + CHANGELOG.md | 6 + Makefile.am | 15 + README.md | 1 + ci/ci.sh | 3 +- configure.ac | 14 + doc/musig.md | 54 ++ examples/musig.c | 257 ++++++ include/secp256k1_musig.h | 588 +++++++++++++ src/ctime_tests.c | 57 ++ src/modules/musig/Makefile.am.include | 8 + src/modules/musig/keyagg.h | 32 + src/modules/musig/keyagg_impl.h | 291 +++++++ src/modules/musig/main_impl.h | 12 + src/modules/musig/session.h | 24 + src/modules/musig/session_impl.h | 815 ++++++++++++++++++ src/modules/musig/tests_impl.h | 1143 +++++++++++++++++++++++++ src/modules/musig/vectors.h | 346 ++++++++ src/secp256k1.c | 4 + src/tests.c | 8 + tools/test_vectors_musig2_generate.py | 656 ++++++++++++++ 23 files changed, 4361 insertions(+), 14 deletions(-) create mode 100644 doc/musig.md create mode 100644 examples/musig.c create mode 100644 include/secp256k1_musig.h create mode 100644 src/modules/musig/Makefile.am.include create mode 100644 src/modules/musig/keyagg.h create mode 100644 src/modules/musig/keyagg_impl.h create mode 100644 src/modules/musig/main_impl.h create mode 100644 src/modules/musig/session.h create mode 100644 src/modules/musig/session_impl.h create mode 100644 src/modules/musig/tests_impl.h create mode 100644 src/modules/musig/vectors.h create mode 100755 tools/test_vectors_musig2_generate.py diff --git a/.cirrus.yml b/.cirrus.yml index 0c1e01dc95..ae4236e0d3 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -22,6 +22,7 @@ env: RECOVERY: no EXTRAKEYS: no SCHNORRSIG: no + MUSIG: no ELLSWIFT: no ### test options SECP256K1_TEST_ITERS: @@ -69,6 +70,7 @@ task: RECOVERY: yes EXTRAKEYS: yes SCHNORRSIG: yes + MUSIG: yes ELLSWIFT: yes matrix: # Currently only gcc-snapshot, the other compilers are tested on GHA with QEMU @@ -86,6 +88,7 @@ task: RECOVERY: yes EXTRAKEYS: yes SCHNORRSIG: yes + MUSIG: yes ELLSWIFT: yes WRAPPER_CMD: 'valgrind --error-exitcode=42' SECP256K1_TEST_ITERS: 2 diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 0fc104d29b..3d50b36dac 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -33,6 +33,7 @@ env: RECOVERY: 'no' EXTRAKEYS: 'no' SCHNORRSIG: 'no' + MUSIG: 'no' ELLSWIFT: 'no' ### test options SECP256K1_TEST_ITERS: @@ -72,18 +73,18 @@ jobs: matrix: configuration: - env_vars: { WIDEMUL: 'int64', RECOVERY: 'yes' } - - env_vars: { WIDEMUL: 'int64', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int64', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } - env_vars: { WIDEMUL: 'int128' } - env_vars: { WIDEMUL: 'int128_struct', ELLSWIFT: 'yes' } - - env_vars: { WIDEMUL: 'int128', RECOVERY: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - env_vars: { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes' } + - env_vars: { WIDEMUL: 'int128', RECOVERY: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes' } - env_vars: { WIDEMUL: 'int128', ASM: 'x86_64', ELLSWIFT: 'yes' } - - env_vars: { RECOVERY: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes' } - - env_vars: { CTIMETESTS: 'no', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', CPPFLAGS: '-DVERIFY' } + - env_vars: { RECOVERY: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes' } + - env_vars: { CTIMETESTS: 'no', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', CPPFLAGS: '-DVERIFY' } - env_vars: { BUILD: 'distcheck', WITH_VALGRIND: 'no', CTIMETESTS: 'no', BENCH: 'no' } - env_vars: { CPPFLAGS: '-DDETERMINISTIC' } - env_vars: { CFLAGS: '-O0', CTIMETESTS: 'no' } - - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } - env_vars: { ECMULTGENKB: 2, ECMULTWINDOW: 2 } - env_vars: { ECMULTGENKB: 86, ECMULTWINDOW: 4 } cc: @@ -142,6 +143,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CC: ${{ matrix.cc }} @@ -187,6 +189,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -239,6 +242,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -285,6 +289,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -341,6 +346,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -394,6 +400,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' SECP256K1_TEST_ITERS: 2 @@ -446,6 +453,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' CFLAGS: '-fsanitize=undefined,address -g' @@ -511,6 +519,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CC: 'clang' SECP256K1_TEST_ITERS: 32 @@ -558,6 +567,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' @@ -615,15 +625,15 @@ jobs: fail-fast: false matrix: env_vars: - - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128_struct', ECMULTGENKB: 2, ECMULTWINDOW: 4 } - - { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY', CTIMETESTS: 'no' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY', CTIMETESTS: 'no' } - BUILD: 'distcheck' steps: @@ -790,6 +800,7 @@ jobs: RECOVERY: 'yes' EXTRAKEYS: 'yes' SCHNORRSIG: 'yes' + MUSIG: 'yes' ELLSWIFT: 'yes' steps: diff --git a/.gitignore b/.gitignore index 18e3259f59..bffba8cb2c 100644 --- a/.gitignore +++ b/.gitignore @@ -11,6 +11,7 @@ ecdh_example ecdsa_example schnorr_example ellswift_example +musig_example *.exe *.so *.a diff --git a/CHANGELOG.md b/CHANGELOG.md index fb82940627..2f2e0f538f 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Added + - New module `musig` implements the MuSig2 multisignature scheme according to the [BIP 327 specification](https://github.com/bitcoin/bips/blob/master/bip-0327.mediawiki). See: + - Header file `include/secp256k1_musig.h` which defines the new API. + - Document `doc/musig.md` for further notes on API usage. + - Usage example `examples/musig.c`. + ## [0.5.1] - 2024-08-01 #### Added diff --git a/Makefile.am b/Makefile.am index 8723b53b2c..a4c8d33dad 100644 --- a/Makefile.am +++ b/Makefile.am @@ -195,6 +195,17 @@ ellswift_example_LDFLAGS += -lbcrypt endif TESTS += ellswift_example endif +if ENABLE_MODULE_MUSIG +noinst_PROGRAMS += musig_example +musig_example_SOURCES = examples/musig.c +musig_example_CPPFLAGS = -I$(top_srcdir)/include -DSECP256K1_STATIC +musig_example_LDADD = libsecp256k1.la +musig_example_LDFLAGS = -static +if BUILD_WINDOWS +musig_example_LDFLAGS += -lbcrypt +endif +TESTS += musig_example +endif endif ### Precomputed tables @@ -281,6 +292,10 @@ if ENABLE_MODULE_SCHNORRSIG include src/modules/schnorrsig/Makefile.am.include endif +if ENABLE_MODULE_MUSIG +include src/modules/musig/Makefile.am.include +endif + if ENABLE_MODULE_ELLSWIFT include src/modules/ellswift/Makefile.am.include endif diff --git a/README.md b/README.md index ed93e0519e..222e5fb768 100644 --- a/README.md +++ b/README.md @@ -21,6 +21,7 @@ Features: * Optional module for ECDH key exchange. * Optional module for Schnorr signatures according to [BIP-340](https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki). * Optional module for ElligatorSwift key exchange according to [BIP-324](https://github.com/bitcoin/bips/blob/master/bip-0324.mediawiki). +* Optional module for MuSig2 Schnorr multi-signatures according to [BIP-327](https://github.com/bitcoin/bips/blob/master/bip-0327.mediawiki). Implementation details ---------------------- diff --git a/ci/ci.sh b/ci/ci.sh index a6c608c29c..3636deafa1 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -13,7 +13,7 @@ print_environment() { # does not rely on bash. for var in WERROR_CFLAGS MAKEFLAGS BUILD \ ECMULTWINDOW ECMULTGENKB ASM WIDEMUL WITH_VALGRIND EXTRAFLAGS \ - EXPERIMENTAL ECDH RECOVERY EXTRAKEYS SCHNORRSIG ELLSWIFT \ + EXPERIMENTAL ECDH RECOVERY EXTRAKEYS MUSIG SCHNORRSIG ELLSWIFT \ SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS\ EXAMPLES \ HOST WRAPPER_CMD \ @@ -79,6 +79,7 @@ esac --enable-module-ellswift="$ELLSWIFT" \ --enable-module-extrakeys="$EXTRAKEYS" \ --enable-module-schnorrsig="$SCHNORRSIG" \ + --enable-module-musig="$MUSIG" \ --enable-examples="$EXAMPLES" \ --enable-ctime-tests="$CTIMETESTS" \ --with-valgrind="$WITH_VALGRIND" \ diff --git a/configure.ac b/configure.ac index 6841543f59..dca1e662f8 100644 --- a/configure.ac +++ b/configure.ac @@ -184,6 +184,10 @@ AC_ARG_ENABLE(module_schnorrsig, AS_HELP_STRING([--enable-module-schnorrsig],[enable schnorrsig module [default=yes]]), [], [SECP_SET_DEFAULT([enable_module_schnorrsig], [yes], [yes])]) +AC_ARG_ENABLE(module_musig, + AS_HELP_STRING([--enable-module-musig],[enable MuSig2 module [default=yes]]), [], + [SECP_SET_DEFAULT([enable_module_musig], [yes], [yes])]) + AC_ARG_ENABLE(module_ellswift, AS_HELP_STRING([--enable-module-ellswift],[enable ElligatorSwift module [default=yes]]), [], [SECP_SET_DEFAULT([enable_module_ellswift], [yes], [yes])]) @@ -398,6 +402,14 @@ if test x"$enable_module_ellswift" = x"yes"; then SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_ELLSWIFT=1" fi +if test x"$enable_module_musig" = x"yes"; then + if test x"$enable_module_schnorrsig" = x"no"; then + AC_MSG_ERROR([Module dependency error: You have disabled the schnorrsig module explicitly, but it is required by the musig module.]) + fi + enable_module_schnorrsig=yes + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_MUSIG=1" +fi + if test x"$enable_module_schnorrsig" = x"yes"; then if test x"$enable_module_extrakeys" = x"no"; then AC_MSG_ERROR([Module dependency error: You have disabled the extrakeys module explicitly, but it is required by the schnorrsig module.]) @@ -449,6 +461,7 @@ AM_CONDITIONAL([ENABLE_MODULE_ECDH], [test x"$enable_module_ecdh" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_EXTRAKEYS], [test x"$enable_module_extrakeys" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_SCHNORRSIG], [test x"$enable_module_schnorrsig" = x"yes"]) +AM_CONDITIONAL([ENABLE_MODULE_MUSIG], [test x"$enable_module_musig" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_ELLSWIFT], [test x"$enable_module_ellswift" = x"yes"]) AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$enable_external_asm" = x"yes"]) AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm32"]) @@ -471,6 +484,7 @@ echo " module ecdh = $enable_module_ecdh" echo " module recovery = $enable_module_recovery" echo " module extrakeys = $enable_module_extrakeys" echo " module schnorrsig = $enable_module_schnorrsig" +echo " module musig = $enable_module_musig" echo " module ellswift = $enable_module_ellswift" echo echo " asm = $set_asm" diff --git a/doc/musig.md b/doc/musig.md new file mode 100644 index 0000000000..ae21f9b131 --- /dev/null +++ b/doc/musig.md @@ -0,0 +1,54 @@ +Notes on the musig module API +=========================== + +The following sections contain additional notes on the API of the musig module (`include/secp256k1_musig.h`). +A usage example can be found in `examples/musig.c`. + +## API misuse + +The musig API is designed with a focus on misuse resistance. +However, due to the interactive nature of the MuSig protocol, there are additional failure modes that are not present in regular (single-party) Schnorr signature creation. +While the results can be catastrophic (e.g. leaking of the secret key), it is unfortunately not possible for the musig implementation to prevent all such failure modes. + +Therefore, users of the musig module must take great care to make sure of the following: + +1. A unique nonce per signing session is generated in `secp256k1_musig_nonce_gen`. + See the corresponding comment in `include/secp256k1_musig.h` for how to ensure that. +2. The `secp256k1_musig_secnonce` structure is never copied or serialized. + See also the comment on `secp256k1_musig_secnonce` in `include/secp256k1_musig.h`. +3. Opaque data structures are never written to or read from directly. + Instead, only the provided accessor functions are used. + +## Key Aggregation and (Taproot) Tweaking + +Given a set of public keys, the aggregate public key is computed with `secp256k1_musig_pubkey_agg`. +A plain tweak can be added to the resulting public key with `secp256k1_ec_pubkey_tweak_add` by setting the `tweak32` argument to the hash defined in BIP 32. Similarly, a Taproot tweak can be added with `secp256k1_xonly_pubkey_tweak_add` by setting the `tweak32` argument to the TapTweak hash defined in BIP 341. +Both types of tweaking can be combined and invoked multiple times if the specific application requires it. + +## Signing + +This is covered by `examples/musig.c`. +Essentially, the protocol proceeds in the following steps: + +1. Generate a keypair with `secp256k1_keypair_create` and obtain the public key with `secp256k1_keypair_pub`. +2. Call `secp256k1_musig_pubkey_agg` with the pubkeys of all participants. +3. Optionally add a (Taproot) tweak with `secp256k1_musig_pubkey_xonly_tweak_add` and a plain tweak with `secp256k1_musig_pubkey_ec_tweak_add`. +4. Generate a pair of secret and public nonce with `secp256k1_musig_nonce_gen` and send the public nonce to the other signers. +5. Someone (not necessarily the signer) aggregates the public nonces with `secp256k1_musig_nonce_agg` and sends it to the signers. +6. Process the aggregate nonce with `secp256k1_musig_nonce_process`. +7. Create a partial signature with `secp256k1_musig_partial_sign`. +8. Verify the partial signatures (optional in some scenarios) with `secp256k1_musig_partial_sig_verify`. +9. Someone (not necessarily the signer) obtains all partial signatures and aggregates them into the final Schnorr signature using `secp256k1_musig_partial_sig_agg`. + +The aggregate signature can be verified with `secp256k1_schnorrsig_verify`. + +Steps 1 through 5 above can occur before or after the signers are aware of the message to be signed. +Whenever possible, it is recommended to generate the nonces only after the message is known. +This provides enhanced defense-in-depth measures, protecting against potential API misuse in certain scenarios. +However, it does require two rounds of communication during the signing process. +The alternative, generating the nonces in a pre-processing step before the message is known, eliminates these additional protective measures but allows for non-interactive signing. +Similarly, the API supports an alternative protocol flow where generating the aggregate key (steps 1 to 3) is allowed to happen after exchanging nonces (steps 4 to 5). + +## Verification + +A participant who wants to verify the partial signatures, but does not sign itself may do so using the above instructions except that the verifier skips steps 1, 4 and 7. diff --git a/examples/musig.c b/examples/musig.c new file mode 100644 index 0000000000..396dbb9f17 --- /dev/null +++ b/examples/musig.c @@ -0,0 +1,257 @@ +/************************************************************************* + * To the extent possible under law, the author(s) have dedicated all * + * copyright and related and neighboring rights to the software in this * + * file to the public domain worldwide. This software is distributed * + * without any warranty. For the CC0 Public Domain Dedication, see * + * EXAMPLES_COPYING or https://creativecommons.org/publicdomain/zero/1.0 * + *************************************************************************/ + +/** This file demonstrates how to use the MuSig module to create a + * 3-of-3 multisignature. Additionally, see the documentation in + * include/secp256k1_musig.h and doc/musig.md. + */ + +#include +#include +#include + +#include +#include +#include +#include + +#include "examples_util.h" + +struct signer_secrets { + secp256k1_keypair keypair; + secp256k1_musig_secnonce secnonce; +}; + +struct signer { + secp256k1_pubkey pubkey; + secp256k1_musig_pubnonce pubnonce; + secp256k1_musig_partial_sig partial_sig; +}; + + /* Number of public keys involved in creating the aggregate signature */ +#define N_SIGNERS 3 +/* Create a key pair, store it in signer_secrets->keypair and signer->pubkey */ +static int create_keypair(const secp256k1_context* ctx, struct signer_secrets *signer_secrets, struct signer *signer) { + unsigned char seckey[32]; + while (1) { + if (!fill_random(seckey, sizeof(seckey))) { + printf("Failed to generate randomness\n"); + return 0; + } + if (secp256k1_keypair_create(ctx, &signer_secrets->keypair, seckey)) { + break; + } + } + if (!secp256k1_keypair_pub(ctx, &signer->pubkey, &signer_secrets->keypair)) { + return 0; + } + + secure_erase(seckey, sizeof(seckey)); + return 1; +} + +/* Tweak the pubkey corresponding to the provided keyagg cache, update the cache + * and return the tweaked aggregate pk. */ +static int tweak(const secp256k1_context* ctx, secp256k1_xonly_pubkey *agg_pk, secp256k1_musig_keyagg_cache *cache) { + secp256k1_pubkey output_pk; + /* For BIP 32 tweaking the plain_tweak is set to a hash as defined in BIP + * 32. */ + unsigned char plain_tweak[32] = "this could be a BIP32 tweak...."; + /* For Taproot tweaking the xonly_tweak is set to the TapTweak hash as + * defined in BIP 341 */ + unsigned char xonly_tweak[32] = "this could be a Taproot tweak.."; + + + /* Plain tweaking which, for example, allows deriving multiple child + * public keys from a single aggregate key using BIP32 */ + if (!secp256k1_musig_pubkey_ec_tweak_add(ctx, NULL, cache, plain_tweak)) { + return 0; + } + /* Note that we did not provide an output_pk argument, because the + * resulting pk is also saved in the cache and so if one is just interested + * in signing, the output_pk argument is unnecessary. On the other hand, if + * one is not interested in signing, the same output_pk can be obtained by + * calling `secp256k1_musig_pubkey_get` right after key aggregation to get + * the full pubkey and then call `secp256k1_ec_pubkey_tweak_add`. */ + + /* Xonly tweaking which, for example, allows creating Taproot commitments */ + if (!secp256k1_musig_pubkey_xonly_tweak_add(ctx, &output_pk, cache, xonly_tweak)) { + return 0; + } + /* Note that if we wouldn't care about signing, we can arrive at the same + * output_pk by providing the untweaked public key to + * `secp256k1_xonly_pubkey_tweak_add` (after converting it to an xonly pubkey + * if necessary with `secp256k1_xonly_pubkey_from_pubkey`). */ + + /* Now we convert the output_pk to an xonly pubkey to allow to later verify + * the Schnorr signature against it. For this purpose we can ignore the + * `pk_parity` output argument; we would need it if we would have to open + * the Taproot commitment. */ + if (!secp256k1_xonly_pubkey_from_pubkey(ctx, agg_pk, NULL, &output_pk)) { + return 0; + } + return 1; +} + +/* Sign a message hash with the given key pairs and store the result in sig */ +static int sign(const secp256k1_context* ctx, struct signer_secrets *signer_secrets, struct signer *signer, const secp256k1_musig_keyagg_cache *cache, const unsigned char *msg32, unsigned char *sig64) { + int i; + const secp256k1_musig_pubnonce *pubnonces[N_SIGNERS]; + const secp256k1_musig_partial_sig *partial_sigs[N_SIGNERS]; + /* The same for all signers */ + secp256k1_musig_session session; + secp256k1_musig_aggnonce agg_pubnonce; + + for (i = 0; i < N_SIGNERS; i++) { + unsigned char seckey[32]; + unsigned char session_secrand[32]; + /* Create random session ID. It is absolutely necessary that the session ID + * is unique for every call of secp256k1_musig_nonce_gen. Otherwise + * it's trivial for an attacker to extract the secret key! */ + if (!fill_random(session_secrand, sizeof(session_secrand))) { + return 0; + } + if (!secp256k1_keypair_sec(ctx, seckey, &signer_secrets[i].keypair)) { + return 0; + } + /* Initialize session and create secret nonce for signing and public + * nonce to send to the other signers. */ + if (!secp256k1_musig_nonce_gen(ctx, &signer_secrets[i].secnonce, &signer[i].pubnonce, session_secrand, seckey, &signer[i].pubkey, msg32, NULL, NULL)) { + return 0; + } + pubnonces[i] = &signer[i].pubnonce; + + secure_erase(seckey, sizeof(seckey)); + } + + /* Communication round 1: Every signer sends their pubnonce to the + * coordinator. The coordinator runs secp256k1_musig_nonce_agg and sends + * agg_pubnonce to each signer */ + if (!secp256k1_musig_nonce_agg(ctx, &agg_pubnonce, pubnonces, N_SIGNERS)) { + return 0; + } + + /* Every signer creates a partial signature */ + for (i = 0; i < N_SIGNERS; i++) { + /* Initialize the signing session by processing the aggregate nonce */ + if (!secp256k1_musig_nonce_process(ctx, &session, &agg_pubnonce, msg32, cache)) { + return 0; + } + /* partial_sign will clear the secnonce by setting it to 0. That's because + * you must _never_ reuse the secnonce (or use the same session_secrand to + * create a secnonce). If you do, you effectively reuse the nonce and + * leak the secret key. */ + if (!secp256k1_musig_partial_sign(ctx, &signer[i].partial_sig, &signer_secrets[i].secnonce, &signer_secrets[i].keypair, cache, &session)) { + return 0; + } + partial_sigs[i] = &signer[i].partial_sig; + } + /* Communication round 2: Every signer sends their partial signature to the + * coordinator, who verifies the partial signatures and aggregates them. */ + for (i = 0; i < N_SIGNERS; i++) { + /* To check whether signing was successful, it suffices to either verify + * the aggregate signature with the aggregate public key using + * secp256k1_schnorrsig_verify, or verify all partial signatures of all + * signers individually. Verifying the aggregate signature is cheaper but + * verifying the individual partial signatures has the advantage that it + * can be used to determine which of the partial signatures are invalid + * (if any), i.e., which of the partial signatures cause the aggregate + * signature to be invalid and thus the protocol run to fail. It's also + * fine to first verify the aggregate sig, and only verify the individual + * sigs if it does not work. + */ + if (!secp256k1_musig_partial_sig_verify(ctx, &signer[i].partial_sig, &signer[i].pubnonce, &signer[i].pubkey, cache, &session)) { + return 0; + } + } + return secp256k1_musig_partial_sig_agg(ctx, sig64, &session, partial_sigs, N_SIGNERS); +} + +int main(void) { + secp256k1_context* ctx; + int i; + struct signer_secrets signer_secrets[N_SIGNERS]; + struct signer signers[N_SIGNERS]; + const secp256k1_pubkey *pubkeys_ptr[N_SIGNERS]; + secp256k1_xonly_pubkey agg_pk; + secp256k1_musig_keyagg_cache cache; + unsigned char msg[32] = "this_could_be_the_hash_of_a_msg"; + unsigned char sig[64]; + + /* Create a secp256k1 context */ + ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); + printf("Creating key pairs......"); + fflush(stdout); + for (i = 0; i < N_SIGNERS; i++) { + if (!create_keypair(ctx, &signer_secrets[i], &signers[i])) { + printf("FAILED\n"); + return 1; + } + pubkeys_ptr[i] = &signers[i].pubkey; + } + printf("ok\n"); + + /* The aggregate public key produced by secp256k1_musig_pubkey_agg depends + * on the order of the provided public keys. If there is no canonical order + * of the signers, the individual public keys can optionally be sorted with + * secp256k1_ec_pubkey_sort to ensure that the aggregate public key is + * independent of the order of signers. */ + printf("Sorting public keys....."); + fflush(stdout); + if (!secp256k1_ec_pubkey_sort(ctx, pubkeys_ptr, N_SIGNERS)) { + printf("FAILED\n"); + return 1; + } + printf("ok\n"); + + printf("Combining public keys..."); + fflush(stdout); + /* If you just want to aggregate and not sign, you can call + * secp256k1_musig_pubkey_agg with the keyagg_cache argument set to NULL + * while providing a non-NULL agg_pk argument. */ + if (!secp256k1_musig_pubkey_agg(ctx, NULL, &cache, pubkeys_ptr, N_SIGNERS)) { + printf("FAILED\n"); + return 1; + } + printf("ok\n"); + printf("Tweaking................"); + fflush(stdout); + /* Optionally tweak the aggregate key */ + if (!tweak(ctx, &agg_pk, &cache)) { + printf("FAILED\n"); + return 1; + } + printf("ok\n"); + printf("Signing message........."); + fflush(stdout); + if (!sign(ctx, signer_secrets, signers, &cache, msg, sig)) { + printf("FAILED\n"); + return 1; + } + printf("ok\n"); + printf("Verifying signature....."); + fflush(stdout); + if (!secp256k1_schnorrsig_verify(ctx, sig, msg, 32, &agg_pk)) { + printf("FAILED\n"); + return 1; + } + printf("ok\n"); + + /* It's best practice to try to clear secrets from memory after using them. + * This is done because some bugs can allow an attacker to leak memory, for + * example through "out of bounds" array access (see Heartbleed), or the OS + * swapping them to disk. Hence, we overwrite secret key material with zeros. + * + * Here we are preventing these writes from being optimized out, as any good compiler + * will remove any writes that aren't used. */ + for (i = 0; i < N_SIGNERS; i++) { + secure_erase(&signer_secrets[i], sizeof(signer_secrets[i])); + } + secp256k1_context_destroy(ctx); + return 0; +} diff --git a/include/secp256k1_musig.h b/include/secp256k1_musig.h new file mode 100644 index 0000000000..53501814e1 --- /dev/null +++ b/include/secp256k1_musig.h @@ -0,0 +1,588 @@ +#ifndef SECP256K1_MUSIG_H +#define SECP256K1_MUSIG_H + +#include "secp256k1_extrakeys.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#include +#include + +/** This module implements BIP 327 "MuSig2 for BIP340-compatible + * Multi-Signatures" + * (https://github.com/bitcoin/bips/blob/master/bip-0327.mediawiki) + * v1.0.0. You can find an example demonstrating the musig module in + * examples/musig.c. + * + * The module also supports BIP 341 ("Taproot") public key tweaking. + * + * It is recommended to read the documentation in this include file carefully. + * Further notes on API usage can be found in doc/musig.md + * + * Since the first version of MuSig is essentially replaced by MuSig2, we use + * MuSig, musig and MuSig2 synonymously unless noted otherwise. + */ + +/** Opaque data structures + * + * The exact representation of data inside the opaque data structures is + * implementation defined and not guaranteed to be portable between different + * platforms or versions. With the exception of `secp256k1_musig_secnonce`, the + * data structures can be safely copied/moved. If you need to convert to a + * format suitable for storage, transmission, or comparison, use the + * corresponding serialization and parsing functions. + */ + +/** Opaque data structure that caches information about public key aggregation. + * + * Guaranteed to be 197 bytes in size. No serialization and parsing functions + * (yet). + */ +typedef struct { + unsigned char data[197]; +} secp256k1_musig_keyagg_cache; + +/** Opaque data structure that holds a signer's _secret_ nonce. + * + * Guaranteed to be 132 bytes in size. + * + * WARNING: This structure MUST NOT be copied or read or written to directly. A + * signer who is online throughout the whole process and can keep this + * structure in memory can use the provided API functions for a safe standard + * workflow. + * + * Copying this data structure can result in nonce reuse which will leak the + * secret signing key. + */ +typedef struct { + unsigned char data[132]; +} secp256k1_musig_secnonce; + +/** Opaque data structure that holds a signer's public nonce. + * + * Guaranteed to be 132 bytes in size. Serialized and parsed with + * `musig_pubnonce_serialize` and `musig_pubnonce_parse`. + */ +typedef struct { + unsigned char data[132]; +} secp256k1_musig_pubnonce; + +/** Opaque data structure that holds an aggregate public nonce. + * + * Guaranteed to be 132 bytes in size. Serialized and parsed with + * `musig_aggnonce_serialize` and `musig_aggnonce_parse`. + */ +typedef struct { + unsigned char data[132]; +} secp256k1_musig_aggnonce; + +/** Opaque data structure that holds a MuSig session. + * + * This structure is not required to be kept secret for the signing protocol to + * be secure. Guaranteed to be 133 bytes in size. No serialization and parsing + * functions (yet). + */ +typedef struct { + unsigned char data[133]; +} secp256k1_musig_session; + +/** Opaque data structure that holds a partial MuSig signature. + * + * Guaranteed to be 36 bytes in size. Serialized and parsed with + * `musig_partial_sig_serialize` and `musig_partial_sig_parse`. + */ +typedef struct { + unsigned char data[36]; +} secp256k1_musig_partial_sig; + +/** Parse a signer's public nonce. + * + * Returns: 1 when the nonce could be parsed, 0 otherwise. + * Args: ctx: pointer to a context object + * Out: nonce: pointer to a nonce object + * In: in66: pointer to the 66-byte nonce to be parsed + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_pubnonce_parse( + const secp256k1_context *ctx, + secp256k1_musig_pubnonce *nonce, + const unsigned char *in66 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Serialize a signer's public nonce + * + * Returns: 1 always + * Args: ctx: pointer to a context object + * Out: out66: pointer to a 66-byte array to store the serialized nonce + * In: nonce: pointer to the nonce + */ +SECP256K1_API int secp256k1_musig_pubnonce_serialize( + const secp256k1_context *ctx, + unsigned char *out66, + const secp256k1_musig_pubnonce *nonce +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Parse an aggregate public nonce. + * + * Returns: 1 when the nonce could be parsed, 0 otherwise. + * Args: ctx: pointer to a context object + * Out: nonce: pointer to a nonce object + * In: in66: pointer to the 66-byte nonce to be parsed + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_aggnonce_parse( + const secp256k1_context *ctx, + secp256k1_musig_aggnonce *nonce, + const unsigned char *in66 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Serialize an aggregate public nonce + * + * Returns: 1 always + * Args: ctx: pointer to a context object + * Out: out66: pointer to a 66-byte array to store the serialized nonce + * In: nonce: pointer to the nonce + */ +SECP256K1_API int secp256k1_musig_aggnonce_serialize( + const secp256k1_context *ctx, + unsigned char *out66, + const secp256k1_musig_aggnonce *nonce +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Parse a MuSig partial signature. + * + * Returns: 1 when the signature could be parsed, 0 otherwise. + * Args: ctx: pointer to a context object + * Out: sig: pointer to a signature object + * In: in32: pointer to the 32-byte signature to be parsed + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_partial_sig_parse( + const secp256k1_context *ctx, + secp256k1_musig_partial_sig *sig, + const unsigned char *in32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Serialize a MuSig partial signature + * + * Returns: 1 always + * Args: ctx: pointer to a context object + * Out: out32: pointer to a 32-byte array to store the serialized signature + * In: sig: pointer to the signature + */ +SECP256K1_API int secp256k1_musig_partial_sig_serialize( + const secp256k1_context *ctx, + unsigned char *out32, + const secp256k1_musig_partial_sig *sig +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Computes an aggregate public key and uses it to initialize a keyagg_cache + * + * Different orders of `pubkeys` result in different `agg_pk`s. + * + * Before aggregating, the pubkeys can be sorted with `secp256k1_ec_pubkey_sort` + * which ensures the same `agg_pk` result for the same multiset of pubkeys. + * This is useful to do before `pubkey_agg`, such that the order of pubkeys + * does not affect the aggregate public key. + * + * Returns: 0 if the arguments are invalid, 1 otherwise + * Args: ctx: pointer to a context object + * Out: agg_pk: the MuSig-aggregated x-only public key. If you do not need it, + * this arg can be NULL. + * keyagg_cache: if non-NULL, pointer to a musig_keyagg_cache struct that + * is required for signing (or observing the signing session + * and verifying partial signatures). + * In: pubkeys: input array of pointers to public keys to aggregate. The order + * is important; a different order will result in a different + * aggregate public key. + * n_pubkeys: length of pubkeys array. Must be greater than 0. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_pubkey_agg( + const secp256k1_context *ctx, + secp256k1_xonly_pubkey *agg_pk, + secp256k1_musig_keyagg_cache *keyagg_cache, + const secp256k1_pubkey * const *pubkeys, + size_t n_pubkeys +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(4); + +/** Obtain the aggregate public key from a keyagg_cache. + * + * This is only useful if you need the non-xonly public key, in particular for + * plain (non-xonly) tweaking or batch-verifying multiple key aggregations + * (not implemented). + * + * Returns: 0 if the arguments are invalid, 1 otherwise + * Args: ctx: pointer to a context object + * Out: agg_pk: the MuSig-aggregated public key. + * In: keyagg_cache: pointer to a `musig_keyagg_cache` struct initialized by + * `musig_pubkey_agg` + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_pubkey_get( + const secp256k1_context *ctx, + secp256k1_pubkey *agg_pk, + const secp256k1_musig_keyagg_cache *keyagg_cache +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Apply plain "EC" tweaking to a public key in a given keyagg_cache by adding + * the generator multiplied with `tweak32` to it. This is useful for deriving + * child keys from an aggregate public key via BIP 32 where `tweak32` is set to + * a hash as defined in BIP 32. + * + * Callers are responsible for deriving `tweak32` in a way that does not reduce + * the security of MuSig (for example, by following BIP 32). + * + * The tweaking method is the same as `secp256k1_ec_pubkey_tweak_add`. So after + * the following pseudocode buf and buf2 have identical contents (absent + * earlier failures). + * + * secp256k1_musig_pubkey_agg(..., keyagg_cache, pubkeys, ...) + * secp256k1_musig_pubkey_get(..., agg_pk, keyagg_cache) + * secp256k1_musig_pubkey_ec_tweak_add(..., output_pk, tweak32, keyagg_cache) + * secp256k1_ec_pubkey_serialize(..., buf, ..., output_pk, ...) + * secp256k1_ec_pubkey_tweak_add(..., agg_pk, tweak32) + * secp256k1_ec_pubkey_serialize(..., buf2, ..., agg_pk, ...) + * + * This function is required if you want to _sign_ for a tweaked aggregate key. + * If you are only computing a public key but not intending to create a + * signature for it, use `secp256k1_ec_pubkey_tweak_add` instead. + * + * Returns: 0 if the arguments are invalid, 1 otherwise + * Args: ctx: pointer to a context object + * Out: output_pubkey: pointer to a public key to store the result. Will be set + * to an invalid value if this function returns 0. If you + * do not need it, this arg can be NULL. + * In/Out: keyagg_cache: pointer to a `musig_keyagg_cache` struct initialized by + * `musig_pubkey_agg` + * In: tweak32: pointer to a 32-byte tweak. The tweak is valid if it passes + * `secp256k1_ec_seckey_verify` and is not equal to the + * secret key corresponding to the public key represented + * by keyagg_cache or its negation. For uniformly random + * 32-byte arrays the chance of being invalid is + * negligible (around 1 in 2^128). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_pubkey_ec_tweak_add( + const secp256k1_context *ctx, + secp256k1_pubkey *output_pubkey, + secp256k1_musig_keyagg_cache *keyagg_cache, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Apply x-only tweaking to a public key in a given keyagg_cache by adding the + * generator multiplied with `tweak32` to it. This is useful for creating + * Taproot outputs where `tweak32` is set to a TapTweak hash as defined in BIP + * 341. + * + * Callers are responsible for deriving `tweak32` in a way that does not reduce + * the security of MuSig (for example, by following Taproot BIP 341). + * + * The tweaking method is the same as `secp256k1_xonly_pubkey_tweak_add`. So in + * the following pseudocode xonly_pubkey_tweak_add_check (absent earlier + * failures) returns 1. + * + * secp256k1_musig_pubkey_agg(..., agg_pk, keyagg_cache, pubkeys, ...) + * secp256k1_musig_pubkey_xonly_tweak_add(..., output_pk, keyagg_cache, tweak32) + * secp256k1_xonly_pubkey_serialize(..., buf, output_pk) + * secp256k1_xonly_pubkey_tweak_add_check(..., buf, ..., agg_pk, tweak32) + * + * This function is required if you want to _sign_ for a tweaked aggregate key. + * If you are only computing a public key but not intending to create a + * signature for it, use `secp256k1_xonly_pubkey_tweak_add` instead. + * + * Returns: 0 if the arguments are invalid, 1 otherwise + * Args: ctx: pointer to a context object + * Out: output_pubkey: pointer to a public key to store the result. Will be set + * to an invalid value if this function returns 0. If you + * do not need it, this arg can be NULL. + * In/Out: keyagg_cache: pointer to a `musig_keyagg_cache` struct initialized by + * `musig_pubkey_agg` + * In: tweak32: pointer to a 32-byte tweak. The tweak is valid if it passes + * `secp256k1_ec_seckey_verify` and is not equal to the + * secret key corresponding to the public key represented + * by keyagg_cache or its negation. For uniformly random + * 32-byte arrays the chance of being invalid is + * negligible (around 1 in 2^128). + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_pubkey_xonly_tweak_add( + const secp256k1_context *ctx, + secp256k1_pubkey *output_pubkey, + secp256k1_musig_keyagg_cache *keyagg_cache, + const unsigned char *tweak32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Starts a signing session by generating a nonce + * + * This function outputs a secret nonce that will be required for signing and a + * corresponding public nonce that is intended to be sent to other signers. + * + * MuSig differs from regular Schnorr signing in that implementers _must_ take + * special care to not reuse a nonce. This can be ensured by following these rules: + * + * 1. Each call to this function must have a UNIQUE session_secrand32 that must + * NOT BE REUSED in subsequent calls to this function and must be KEPT + * SECRET (even from other signers). + * 2. If you already know the seckey, message or aggregate public key + * cache, they can be optionally provided to derive the nonce and increase + * misuse-resistance. The extra_input32 argument can be used to provide + * additional data that does not repeat in normal scenarios, such as the + * current time. + * 3. Avoid copying (or serializing) the secnonce. This reduces the possibility + * that it is used more than once for signing. + * + * If you don't have access to good randomness for session_secrand32, but you + * have access to a non-repeating counter, then see + * secp256k1_musig_nonce_gen_counter. + * + * Remember that nonce reuse will leak the secret key! + * Note that using the same seckey for multiple MuSig sessions is fine. + * + * Returns: 0 if the arguments are invalid and 1 otherwise + * Args: ctx: pointer to a context object (not secp256k1_context_static) + * Out: secnonce: pointer to a structure to store the secret nonce + * pubnonce: pointer to a structure to store the public nonce + * In/Out: + * session_secrand32: a 32-byte session_secrand32 as explained above. Must be unique to this + * call to secp256k1_musig_nonce_gen and must be uniformly + * random. If the function call is successful, the + * session_secrand32 buffer is invalidated to prevent reuse. + * In: + * seckey: the 32-byte secret key that will later be used for signing, if + * already known (can be NULL) + * pubkey: public key of the signer creating the nonce. The secnonce + * output of this function cannot be used to sign for any + * other public key. While the public key should correspond + * to the provided seckey, a mismatch will not cause the + * function to return 0. + * msg32: the 32-byte message that will later be signed, if already known + * (can be NULL) + * keyagg_cache: pointer to the keyagg_cache that was used to create the aggregate + * (and potentially tweaked) public key if already known + * (can be NULL) + * extra_input32: an optional 32-byte array that is input to the nonce + * derivation function (can be NULL) + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_nonce_gen( + const secp256k1_context *ctx, + secp256k1_musig_secnonce *secnonce, + secp256k1_musig_pubnonce *pubnonce, + unsigned char *session_secrand32, + const unsigned char *seckey, + const secp256k1_pubkey *pubkey, + const unsigned char *msg32, + const secp256k1_musig_keyagg_cache *keyagg_cache, + const unsigned char *extra_input32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(6); + + +/** Alternative way to generate a nonce and start a signing session + * + * This function outputs a secret nonce that will be required for signing and a + * corresponding public nonce that is intended to be sent to other signers. + * + * This function differs from `secp256k1_musig_nonce_gen` by accepting a + * non-repeating counter value instead of a secret random value. This requires + * that a secret key is provided to `secp256k1_musig_nonce_gen_counter` + * (through the keypair argument), as opposed to `secp256k1_musig_nonce_gen` + * where the seckey argument is optional. + * + * MuSig differs from regular Schnorr signing in that implementers _must_ take + * special care to not reuse a nonce. This can be ensured by following these rules: + * + * 1. The nonrepeating_cnt argument must be a counter value that never repeats, + * i.e., you must never call `secp256k1_musig_nonce_gen_counter` twice with + * the same keypair and nonrepeating_cnt value. For example, this implies + * that if the same keypair is used with `secp256k1_musig_nonce_gen_counter` + * on multiple devices, none of the devices should have the same counter + * value as any other device. + * 2. If the seckey, message or aggregate public key cache is already available + * at this stage, any of these can be optionally provided, in which case + * they will be used in the derivation of the nonce and increase + * misuse-resistance. The extra_input32 argument can be used to provide + * additional data that does not repeat in normal scenarios, such as the + * current time. + * 3. Avoid copying (or serializing) the secnonce. This reduces the possibility + * that it is used more than once for signing. + * + * Remember that nonce reuse will leak the secret key! + * Note that using the same keypair for multiple MuSig sessions is fine. + * + * Returns: 0 if the arguments are invalid and 1 otherwise + * Args: ctx: pointer to a context object (not secp256k1_context_static) + * Out: secnonce: pointer to a structure to store the secret nonce + * pubnonce: pointer to a structure to store the public nonce + * In: + * nonrepeating_cnt: the value of a counter as explained above. Must be + * unique to this call to secp256k1_musig_nonce_gen. + * keypair: keypair of the signer creating the nonce. The secnonce + * output of this function cannot be used to sign for any + * other keypair. + * msg32: the 32-byte message that will later be signed, if already known + * (can be NULL) + * keyagg_cache: pointer to the keyagg_cache that was used to create the aggregate + * (and potentially tweaked) public key if already known + * (can be NULL) + * extra_input32: an optional 32-byte array that is input to the nonce + * derivation function (can be NULL) + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_nonce_gen_counter( + const secp256k1_context *ctx, + secp256k1_musig_secnonce *secnonce, + secp256k1_musig_pubnonce *pubnonce, + uint64_t nonrepeating_cnt, + const secp256k1_keypair *keypair, + const unsigned char *msg32, + const secp256k1_musig_keyagg_cache *keyagg_cache, + const unsigned char *extra_input32 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(5); + +/** Aggregates the nonces of all signers into a single nonce + * + * This can be done by an untrusted party to reduce the communication + * between signers. Instead of everyone sending nonces to everyone else, there + * can be one party receiving all nonces, aggregating the nonces with this + * function and then sending only the aggregate nonce back to the signers. + * + * If the aggregator does not compute the aggregate nonce correctly, the final + * signature will be invalid. + * + * Returns: 0 if the arguments are invalid, 1 otherwise + * Args: ctx: pointer to a context object + * Out: aggnonce: pointer to an aggregate public nonce object for + * musig_nonce_process + * In: pubnonces: array of pointers to public nonces sent by the + * signers + * n_pubnonces: number of elements in the pubnonces array. Must be + * greater than 0. + */ +SECP256K1_API int secp256k1_musig_nonce_agg( + const secp256k1_context *ctx, + secp256k1_musig_aggnonce *aggnonce, + const secp256k1_musig_pubnonce * const *pubnonces, + size_t n_pubnonces +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Takes the aggregate nonce and creates a session that is required for signing + * and verification of partial signatures. + * + * Returns: 0 if the arguments are invalid, 1 otherwise + * Args: ctx: pointer to a context object + * Out: session: pointer to a struct to store the session + * In: aggnonce: pointer to an aggregate public nonce object that is the + * output of musig_nonce_agg + * msg32: the 32-byte message to sign + * keyagg_cache: pointer to the keyagg_cache that was used to create the + * aggregate (and potentially tweaked) pubkey + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_nonce_process( + const secp256k1_context *ctx, + secp256k1_musig_session *session, + const secp256k1_musig_aggnonce *aggnonce, + const unsigned char *msg32, + const secp256k1_musig_keyagg_cache *keyagg_cache +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5); + +/** Produces a partial signature + * + * This function overwrites the given secnonce with zeros and will abort if given a + * secnonce that is all zeros. This is a best effort attempt to protect against nonce + * reuse. However, this is of course easily defeated if the secnonce has been + * copied (or serialized). Remember that nonce reuse will leak the secret key! + * + * For signing to succeed, the secnonce provided to this function must have + * been generated for the provided keypair. This means that when signing for a + * keypair consisting of a seckey and pubkey, the secnonce must have been + * created by calling musig_nonce_gen with that pubkey. Otherwise, the + * illegal_callback is called. + * + * This function does not verify the output partial signature, deviating from + * the BIP 327 specification. It is recommended to verify the output partial + * signature with `secp256k1_musig_partial_sig_verify` to prevent random or + * adversarially provoked computation errors. + * + * Returns: 0 if the arguments are invalid or the provided secnonce has already + * been used for signing, 1 otherwise + * Args: ctx: pointer to a context object + * Out: partial_sig: pointer to struct to store the partial signature + * In/Out: secnonce: pointer to the secnonce struct created in + * musig_nonce_gen that has been never used in a + * partial_sign call before and has been created for the + * keypair + * In: keypair: pointer to keypair to sign the message with + * keyagg_cache: pointer to the keyagg_cache that was output when the + * aggregate public key for this session + * session: pointer to the session that was created with + * musig_nonce_process + */ +SECP256K1_API int secp256k1_musig_partial_sign( + const secp256k1_context *ctx, + secp256k1_musig_partial_sig *partial_sig, + secp256k1_musig_secnonce *secnonce, + const secp256k1_keypair *keypair, + const secp256k1_musig_keyagg_cache *keyagg_cache, + const secp256k1_musig_session *session +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5) SECP256K1_ARG_NONNULL(6); + +/** Verifies an individual signer's partial signature + * + * The signature is verified for a specific signing session. In order to avoid + * accidentally verifying a signature from a different or non-existing signing + * session, you must ensure the following: + * 1. The `keyagg_cache` argument is identical to the one used to create the + * `session` with `musig_nonce_process`. + * 2. The `pubkey` argument must be identical to the one sent by the signer + * before aggregating it with `musig_pubkey_agg` to create the + * `keyagg_cache`. + * 3. The `pubnonce` argument must be identical to the one sent by the signer + * before aggregating it with `musig_nonce_agg` and using the result to + * create the `session` with `musig_nonce_process`. + * + * It is not required to call this function in regular MuSig sessions, because + * if any partial signature does not verify, the final signature will not + * verify either, so the problem will be caught. However, this function + * provides the ability to identify which specific partial signature fails + * verification. + * + * Returns: 0 if the arguments are invalid or the partial signature does not + * verify, 1 otherwise + * Args ctx: pointer to a context object + * In: partial_sig: pointer to partial signature to verify, sent by + * the signer associated with `pubnonce` and `pubkey` + * pubnonce: public nonce of the signer in the signing session + * pubkey: public key of the signer in the signing session + * keyagg_cache: pointer to the keyagg_cache that was output when the + * aggregate public key for this signing session + * session: pointer to the session that was created with + * `musig_nonce_process` + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_musig_partial_sig_verify( + const secp256k1_context *ctx, + const secp256k1_musig_partial_sig *partial_sig, + const secp256k1_musig_pubnonce *pubnonce, + const secp256k1_pubkey *pubkey, + const secp256k1_musig_keyagg_cache *keyagg_cache, + const secp256k1_musig_session *session +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5) SECP256K1_ARG_NONNULL(6); + +/** Aggregates partial signatures + * + * Returns: 0 if the arguments are invalid, 1 otherwise (which does NOT mean + * the resulting signature verifies). + * Args: ctx: pointer to a context object + * Out: sig64: complete (but possibly invalid) Schnorr signature + * In: session: pointer to the session that was created with + * musig_nonce_process + * partial_sigs: array of pointers to partial signatures to aggregate + * n_sigs: number of elements in the partial_sigs array. Must be + * greater than 0. + */ +SECP256K1_API int secp256k1_musig_partial_sig_agg( + const secp256k1_context *ctx, + unsigned char *sig64, + const secp256k1_musig_session *session, + const secp256k1_musig_partial_sig * const *partial_sigs, + size_t n_sigs +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/src/ctime_tests.c b/src/ctime_tests.c index a384e83152..bbde863d96 100644 --- a/src/ctime_tests.c +++ b/src/ctime_tests.c @@ -5,6 +5,7 @@ ***********************************************************************/ #include +#include #include "../include/secp256k1.h" #include "assumptions.h" @@ -30,6 +31,10 @@ #include "../include/secp256k1_schnorrsig.h" #endif +#ifdef ENABLE_MODULE_MUSIG +#include "../include/secp256k1_musig.h" +#endif + #ifdef ENABLE_MODULE_ELLSWIFT #include "../include/secp256k1_ellswift.h" #endif @@ -180,6 +185,58 @@ static void run_tests(secp256k1_context *ctx, unsigned char *key) { CHECK(ret == 1); #endif +#ifdef ENABLE_MODULE_MUSIG + { + secp256k1_pubkey pk; + const secp256k1_pubkey *pk_ptr[1]; + secp256k1_xonly_pubkey agg_pk; + unsigned char session_secrand[32]; + uint64_t nonrepeating_cnt = 0; + secp256k1_musig_secnonce secnonce; + secp256k1_musig_pubnonce pubnonce; + const secp256k1_musig_pubnonce *pubnonce_ptr[1]; + secp256k1_musig_aggnonce aggnonce; + secp256k1_musig_keyagg_cache cache; + secp256k1_musig_session session; + secp256k1_musig_partial_sig partial_sig; + unsigned char extra_input[32]; + + pk_ptr[0] = &pk; + pubnonce_ptr[0] = &pubnonce; + SECP256K1_CHECKMEM_DEFINE(key, 32); + memcpy(session_secrand, key, sizeof(session_secrand)); + session_secrand[0] = session_secrand[0] + 1; + memcpy(extra_input, key, sizeof(extra_input)); + extra_input[0] = extra_input[0] + 2; + + CHECK(secp256k1_keypair_create(ctx, &keypair, key)); + CHECK(secp256k1_keypair_pub(ctx, &pk, &keypair)); + CHECK(secp256k1_musig_pubkey_agg(ctx, &agg_pk, &cache, pk_ptr, 1)); + + SECP256K1_CHECKMEM_UNDEFINE(key, 32); + SECP256K1_CHECKMEM_UNDEFINE(session_secrand, sizeof(session_secrand)); + SECP256K1_CHECKMEM_UNDEFINE(extra_input, sizeof(extra_input)); + ret = secp256k1_musig_nonce_gen(ctx, &secnonce, &pubnonce, session_secrand, key, &pk, msg, &cache, extra_input); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); + CHECK(ret == 1); + ret = secp256k1_musig_nonce_gen_counter(ctx, &secnonce, &pubnonce, nonrepeating_cnt, &keypair, msg, &cache, extra_input); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); + CHECK(ret == 1); + + CHECK(secp256k1_musig_nonce_agg(ctx, &aggnonce, pubnonce_ptr, 1)); + /* Make sure that previous tests don't undefine msg. It's not used as a secret here. */ + SECP256K1_CHECKMEM_DEFINE(msg, sizeof(msg)); + CHECK(secp256k1_musig_nonce_process(ctx, &session, &aggnonce, msg, &cache) == 1); + + ret = secp256k1_keypair_create(ctx, &keypair, key); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); + CHECK(ret == 1); + ret = secp256k1_musig_partial_sign(ctx, &partial_sig, &secnonce, &keypair, &cache, &session); + SECP256K1_CHECKMEM_DEFINE(&ret, sizeof(ret)); + CHECK(ret == 1); + } +#endif + #ifdef ENABLE_MODULE_ELLSWIFT SECP256K1_CHECKMEM_UNDEFINE(key, 32); ret = secp256k1_ellswift_create(ctx, ellswift, key, NULL); diff --git a/src/modules/musig/Makefile.am.include b/src/modules/musig/Makefile.am.include new file mode 100644 index 0000000000..796443c93b --- /dev/null +++ b/src/modules/musig/Makefile.am.include @@ -0,0 +1,8 @@ +include_HEADERS += include/secp256k1_musig.h +noinst_HEADERS += src/modules/musig/main_impl.h +noinst_HEADERS += src/modules/musig/keyagg.h +noinst_HEADERS += src/modules/musig/keyagg_impl.h +noinst_HEADERS += src/modules/musig/session.h +noinst_HEADERS += src/modules/musig/session_impl.h +noinst_HEADERS += src/modules/musig/tests_impl.h +noinst_HEADERS += src/modules/musig/vectors.h diff --git a/src/modules/musig/keyagg.h b/src/modules/musig/keyagg.h new file mode 100644 index 0000000000..a0b37252f8 --- /dev/null +++ b/src/modules/musig/keyagg.h @@ -0,0 +1,32 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_MUSIG_KEYAGG_H +#define SECP256K1_MODULE_MUSIG_KEYAGG_H + +#include "../../../include/secp256k1.h" +#include "../../../include/secp256k1_musig.h" + +#include "../../group.h" +#include "../../scalar.h" + +typedef struct { + secp256k1_ge pk; + /* If there is no "second" public key, second_pk is set to the point at + * infinity */ + secp256k1_ge second_pk; + unsigned char pks_hash[32]; + /* tweak is identical to value tacc[v] in the specification. */ + secp256k1_scalar tweak; + /* parity_acc corresponds to (1 - gacc[v])/2 in the spec. So if gacc[v] is + * -1, parity_acc is 1. Otherwise, parity_acc is 0. */ + int parity_acc; +} secp256k1_keyagg_cache_internal; + +static int secp256k1_keyagg_cache_load(const secp256k1_context* ctx, secp256k1_keyagg_cache_internal *cache_i, const secp256k1_musig_keyagg_cache *cache); + +static void secp256k1_musig_keyaggcoef(secp256k1_scalar *r, const secp256k1_keyagg_cache_internal *cache_i, secp256k1_ge *pk); + +#endif diff --git a/src/modules/musig/keyagg_impl.h b/src/modules/musig/keyagg_impl.h new file mode 100644 index 0000000000..0db4fce859 --- /dev/null +++ b/src/modules/musig/keyagg_impl.h @@ -0,0 +1,291 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_MUSIG_KEYAGG_IMPL_H +#define SECP256K1_MODULE_MUSIG_KEYAGG_IMPL_H + +#include + +#include "keyagg.h" +#include "../../eckey.h" +#include "../../ecmult.h" +#include "../../field.h" +#include "../../group.h" +#include "../../hash.h" +#include "../../util.h" + +static const unsigned char secp256k1_musig_keyagg_cache_magic[4] = { 0xf4, 0xad, 0xbb, 0xdf }; + +/* A keyagg cache consists of + * - 4 byte magic set during initialization to allow detecting an uninitialized + * object. + * - 64 byte aggregate (and potentially tweaked) public key + * - 64 byte "second" public key (set to the point at infinity if not present) + * - 32 byte hash of all public keys + * - 1 byte the parity of the internal key (if tweaked, otherwise 0) + * - 32 byte tweak + */ +/* Requires that cache_i->pk is not infinity. */ +static void secp256k1_keyagg_cache_save(secp256k1_musig_keyagg_cache *cache, const secp256k1_keyagg_cache_internal *cache_i) { + unsigned char *ptr = cache->data; + memcpy(ptr, secp256k1_musig_keyagg_cache_magic, 4); + ptr += 4; + secp256k1_ge_to_bytes(ptr, &cache_i->pk); + ptr += 64; + secp256k1_ge_to_bytes_ext(ptr, &cache_i->second_pk); + ptr += 64; + memcpy(ptr, cache_i->pks_hash, 32); + ptr += 32; + *ptr = cache_i->parity_acc; + ptr += 1; + secp256k1_scalar_get_b32(ptr, &cache_i->tweak); +} + +static int secp256k1_keyagg_cache_load(const secp256k1_context* ctx, secp256k1_keyagg_cache_internal *cache_i, const secp256k1_musig_keyagg_cache *cache) { + const unsigned char *ptr = cache->data; + ARG_CHECK(secp256k1_memcmp_var(ptr, secp256k1_musig_keyagg_cache_magic, 4) == 0); + ptr += 4; + secp256k1_ge_from_bytes(&cache_i->pk, ptr); + ptr += 64; + secp256k1_ge_from_bytes_ext(&cache_i->second_pk, ptr); + ptr += 64; + memcpy(cache_i->pks_hash, ptr, 32); + ptr += 32; + cache_i->parity_acc = *ptr & 1; + ptr += 1; + secp256k1_scalar_set_b32(&cache_i->tweak, ptr, NULL); + return 1; +} + +/* Initializes SHA256 with fixed midstate. This midstate was computed by applying + * SHA256 to SHA256("KeyAgg list")||SHA256("KeyAgg list"). */ +static void secp256k1_musig_keyagglist_sha256(secp256k1_sha256 *sha) { + secp256k1_sha256_initialize(sha); + + sha->s[0] = 0xb399d5e0ul; + sha->s[1] = 0xc8fff302ul; + sha->s[2] = 0x6badac71ul; + sha->s[3] = 0x07c5b7f1ul; + sha->s[4] = 0x9701e2eful; + sha->s[5] = 0x2a72ecf8ul; + sha->s[6] = 0x201a4c7bul; + sha->s[7] = 0xab148a38ul; + sha->bytes = 64; +} + +/* Computes pks_hash = tagged_hash(pk[0], ..., pk[np-1]) */ +static int secp256k1_musig_compute_pks_hash(const secp256k1_context *ctx, unsigned char *pks_hash, const secp256k1_pubkey * const* pks, size_t np) { + secp256k1_sha256 sha; + size_t i; + + secp256k1_musig_keyagglist_sha256(&sha); + for (i = 0; i < np; i++) { + unsigned char ser[33]; + size_t ser_len = sizeof(ser); + if (!secp256k1_ec_pubkey_serialize(ctx, ser, &ser_len, pks[i], SECP256K1_EC_COMPRESSED)) { + return 0; + } + VERIFY_CHECK(ser_len == sizeof(ser)); + secp256k1_sha256_write(&sha, ser, sizeof(ser)); + } + secp256k1_sha256_finalize(&sha, pks_hash); + return 1; +} + +/* Initializes SHA256 with fixed midstate. This midstate was computed by applying + * SHA256 to SHA256("KeyAgg coefficient")||SHA256("KeyAgg coefficient"). */ +static void secp256k1_musig_keyaggcoef_sha256(secp256k1_sha256 *sha) { + secp256k1_sha256_initialize(sha); + + sha->s[0] = 0x6ef02c5aul; + sha->s[1] = 0x06a480deul; + sha->s[2] = 0x1f298665ul; + sha->s[3] = 0x1d1134f2ul; + sha->s[4] = 0x56a0b063ul; + sha->s[5] = 0x52da4147ul; + sha->s[6] = 0xf280d9d4ul; + sha->s[7] = 0x4484be15ul; + sha->bytes = 64; +} + +/* Compute KeyAgg coefficient which is constant 1 for the second pubkey and + * otherwise tagged_hash(pks_hash, pk) where pks_hash is the hash of public keys. + * second_pk is the point at infinity in case there is no second_pk. Assumes + * that pk is not the point at infinity and that the Y-coordinates of pk and + * second_pk are normalized. */ +static void secp256k1_musig_keyaggcoef_internal(secp256k1_scalar *r, const unsigned char *pks_hash, secp256k1_ge *pk, const secp256k1_ge *second_pk) { + VERIFY_CHECK(!secp256k1_ge_is_infinity(pk)); + + if (!secp256k1_ge_is_infinity(second_pk) + && secp256k1_ge_eq_var(pk, second_pk)) { + secp256k1_scalar_set_int(r, 1); + } else { + secp256k1_sha256 sha; + unsigned char buf[33]; + size_t buflen = sizeof(buf); + int ret; + secp256k1_musig_keyaggcoef_sha256(&sha); + secp256k1_sha256_write(&sha, pks_hash, 32); + ret = secp256k1_eckey_pubkey_serialize(pk, buf, &buflen, 1); +#ifdef VERIFY + /* Serialization does not fail since the pk is not the point at infinity + * (according to this function's precondition). */ + VERIFY_CHECK(ret && buflen == sizeof(buf)); +#else + (void) ret; +#endif + secp256k1_sha256_write(&sha, buf, sizeof(buf)); + secp256k1_sha256_finalize(&sha, buf); + secp256k1_scalar_set_b32(r, buf, NULL); + } +} + +/* Assumes that pk is not the point at infinity and that the Y-coordinates of pk + * and cache_i->second_pk are normalized. */ +static void secp256k1_musig_keyaggcoef(secp256k1_scalar *r, const secp256k1_keyagg_cache_internal *cache_i, secp256k1_ge *pk) { + secp256k1_musig_keyaggcoef_internal(r, cache_i->pks_hash, pk, &cache_i->second_pk); +} + +typedef struct { + const secp256k1_context *ctx; + /* pks_hash is the hash of the public keys */ + unsigned char pks_hash[32]; + const secp256k1_pubkey * const* pks; + secp256k1_ge second_pk; +} secp256k1_musig_pubkey_agg_ecmult_data; + +/* Callback for batch EC multiplication to compute keyaggcoef_0*P0 + keyaggcoef_1*P1 + ... */ +static int secp256k1_musig_pubkey_agg_callback(secp256k1_scalar *sc, secp256k1_ge *pt, size_t idx, void *data) { + secp256k1_musig_pubkey_agg_ecmult_data *ctx = (secp256k1_musig_pubkey_agg_ecmult_data *) data; + int ret; + ret = secp256k1_pubkey_load(ctx->ctx, pt, ctx->pks[idx]); +#ifdef VERIFY + /* pubkey_load can't fail because the same pks have already been loaded in + * `musig_compute_pks_hash` (and we test this). */ + VERIFY_CHECK(ret); +#else + (void) ret; +#endif + secp256k1_musig_keyaggcoef_internal(sc, ctx->pks_hash, pt, &ctx->second_pk); + return 1; +} + +int secp256k1_musig_pubkey_agg(const secp256k1_context* ctx, secp256k1_xonly_pubkey *agg_pk, secp256k1_musig_keyagg_cache *keyagg_cache, const secp256k1_pubkey * const* pubkeys, size_t n_pubkeys) { + secp256k1_musig_pubkey_agg_ecmult_data ecmult_data; + secp256k1_gej pkj; + secp256k1_ge pkp; + size_t i; + + VERIFY_CHECK(ctx != NULL); + if (agg_pk != NULL) { + memset(agg_pk, 0, sizeof(*agg_pk)); + } + ARG_CHECK(pubkeys != NULL); + ARG_CHECK(n_pubkeys > 0); + + ecmult_data.ctx = ctx; + ecmult_data.pks = pubkeys; + + secp256k1_ge_set_infinity(&ecmult_data.second_pk); + for (i = 1; i < n_pubkeys; i++) { + if (secp256k1_memcmp_var(pubkeys[0], pubkeys[i], sizeof(*pubkeys[0])) != 0) { + secp256k1_ge pk; + if (!secp256k1_pubkey_load(ctx, &pk, pubkeys[i])) { + return 0; + } + ecmult_data.second_pk = pk; + break; + } + } + + if (!secp256k1_musig_compute_pks_hash(ctx, ecmult_data.pks_hash, pubkeys, n_pubkeys)) { + return 0; + } + /* TODO: actually use optimized ecmult_multi algorithms by providing a + * scratch space */ + if (!secp256k1_ecmult_multi_var(&ctx->error_callback, NULL, &pkj, NULL, secp256k1_musig_pubkey_agg_callback, (void *) &ecmult_data, n_pubkeys)) { + /* In order to reach this line with the current implementation of + * ecmult_multi_var one would need to provide a callback that can + * fail. */ + return 0; + } + secp256k1_ge_set_gej(&pkp, &pkj); + secp256k1_fe_normalize_var(&pkp.y); + /* The resulting public key is infinity with negligible probability */ + VERIFY_CHECK(!secp256k1_ge_is_infinity(&pkp)); + if (keyagg_cache != NULL) { + secp256k1_keyagg_cache_internal cache_i = { 0 }; + cache_i.pk = pkp; + cache_i.second_pk = ecmult_data.second_pk; + memcpy(cache_i.pks_hash, ecmult_data.pks_hash, sizeof(cache_i.pks_hash)); + secp256k1_keyagg_cache_save(keyagg_cache, &cache_i); + } + + if (agg_pk != NULL) { + secp256k1_extrakeys_ge_even_y(&pkp); + secp256k1_xonly_pubkey_save(agg_pk, &pkp); + } + return 1; +} + +int secp256k1_musig_pubkey_get(const secp256k1_context* ctx, secp256k1_pubkey *agg_pk, const secp256k1_musig_keyagg_cache *keyagg_cache) { + secp256k1_keyagg_cache_internal cache_i; + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(agg_pk != NULL); + memset(agg_pk, 0, sizeof(*agg_pk)); + ARG_CHECK(keyagg_cache != NULL); + + if (!secp256k1_keyagg_cache_load(ctx, &cache_i, keyagg_cache)) { + return 0; + } + secp256k1_pubkey_save(agg_pk, &cache_i.pk); + return 1; +} + +static int secp256k1_musig_pubkey_tweak_add_internal(const secp256k1_context* ctx, secp256k1_pubkey *output_pubkey, secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *tweak32, int xonly) { + secp256k1_keyagg_cache_internal cache_i; + int overflow = 0; + secp256k1_scalar tweak; + + VERIFY_CHECK(ctx != NULL); + if (output_pubkey != NULL) { + memset(output_pubkey, 0, sizeof(*output_pubkey)); + } + ARG_CHECK(keyagg_cache != NULL); + ARG_CHECK(tweak32 != NULL); + + if (!secp256k1_keyagg_cache_load(ctx, &cache_i, keyagg_cache)) { + return 0; + } + secp256k1_scalar_set_b32(&tweak, tweak32, &overflow); + if (overflow) { + return 0; + } + if (xonly && secp256k1_extrakeys_ge_even_y(&cache_i.pk)) { + cache_i.parity_acc ^= 1; + secp256k1_scalar_negate(&cache_i.tweak, &cache_i.tweak); + } + secp256k1_scalar_add(&cache_i.tweak, &cache_i.tweak, &tweak); + if (!secp256k1_eckey_pubkey_tweak_add(&cache_i.pk, &tweak)) { + return 0; + } + /* eckey_pubkey_tweak_add fails if cache_i.pk is infinity */ + VERIFY_CHECK(!secp256k1_ge_is_infinity(&cache_i.pk)); + secp256k1_keyagg_cache_save(keyagg_cache, &cache_i); + if (output_pubkey != NULL) { + secp256k1_pubkey_save(output_pubkey, &cache_i.pk); + } + return 1; +} + +int secp256k1_musig_pubkey_ec_tweak_add(const secp256k1_context* ctx, secp256k1_pubkey *output_pubkey, secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *tweak32) { + return secp256k1_musig_pubkey_tweak_add_internal(ctx, output_pubkey, keyagg_cache, tweak32, 0); +} + +int secp256k1_musig_pubkey_xonly_tweak_add(const secp256k1_context* ctx, secp256k1_pubkey *output_pubkey, secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *tweak32) { + return secp256k1_musig_pubkey_tweak_add_internal(ctx, output_pubkey, keyagg_cache, tweak32, 1); +} + +#endif diff --git a/src/modules/musig/main_impl.h b/src/modules/musig/main_impl.h new file mode 100644 index 0000000000..a1311e4191 --- /dev/null +++ b/src/modules/musig/main_impl.h @@ -0,0 +1,12 @@ +/********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or http://www.opensource.org/licenses/mit-license.php.* + **********************************************************************/ + +#ifndef SECP256K1_MODULE_MUSIG_MAIN_H +#define SECP256K1_MODULE_MUSIG_MAIN_H + +#include "keyagg_impl.h" +#include "session_impl.h" + +#endif diff --git a/src/modules/musig/session.h b/src/modules/musig/session.h new file mode 100644 index 0000000000..d6d76bc6c1 --- /dev/null +++ b/src/modules/musig/session.h @@ -0,0 +1,24 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_MUSIG_SESSION_H +#define SECP256K1_MODULE_MUSIG_SESSION_H + +#include "../../../include/secp256k1.h" +#include "../../../include/secp256k1_musig.h" + +#include "../../scalar.h" + +typedef struct { + int fin_nonce_parity; + unsigned char fin_nonce[32]; + secp256k1_scalar noncecoef; + secp256k1_scalar challenge; + secp256k1_scalar s_part; +} secp256k1_musig_session_internal; + +static int secp256k1_musig_session_load(const secp256k1_context* ctx, secp256k1_musig_session_internal *session_i, const secp256k1_musig_session *session); + +#endif diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h new file mode 100644 index 0000000000..2715b09d57 --- /dev/null +++ b/src/modules/musig/session_impl.h @@ -0,0 +1,815 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_MUSIG_SESSION_IMPL_H +#define SECP256K1_MODULE_MUSIG_SESSION_IMPL_H + +#include + +#include "../../../include/secp256k1.h" +#include "../../../include/secp256k1_extrakeys.h" +#include "../../../include/secp256k1_musig.h" + +#include "keyagg.h" +#include "session.h" +#include "../../eckey.h" +#include "../../hash.h" +#include "../../scalar.h" +#include "../../util.h" + +/* Outputs 33 zero bytes if the given group element is the point at infinity and + * otherwise outputs the compressed serialization */ +static void secp256k1_musig_ge_serialize_ext(unsigned char *out33, secp256k1_ge* ge) { + if (secp256k1_ge_is_infinity(ge)) { + memset(out33, 0, 33); + } else { + int ret; + size_t size = 33; + ret = secp256k1_eckey_pubkey_serialize(ge, out33, &size, 1); +#ifdef VERIFY + /* Serialize must succeed because the point is not at infinity */ + VERIFY_CHECK(ret && size == 33); +#else + (void) ret; +#endif + } +} + +/* Outputs the point at infinity if the given byte array is all zero, otherwise + * attempts to parse compressed point serialization. */ +static int secp256k1_musig_ge_parse_ext(secp256k1_ge* ge, const unsigned char *in33) { + unsigned char zeros[33] = { 0 }; + + if (secp256k1_memcmp_var(in33, zeros, sizeof(zeros)) == 0) { + secp256k1_ge_set_infinity(ge); + return 1; + } + if (!secp256k1_eckey_pubkey_parse(ge, in33, 33)) { + return 0; + } + return secp256k1_ge_is_in_correct_subgroup(ge); +} + +static const unsigned char secp256k1_musig_secnonce_magic[4] = { 0x22, 0x0e, 0xdc, 0xf1 }; + +static void secp256k1_musig_secnonce_save(secp256k1_musig_secnonce *secnonce, const secp256k1_scalar *k, const secp256k1_ge *pk) { + memcpy(&secnonce->data[0], secp256k1_musig_secnonce_magic, 4); + secp256k1_scalar_get_b32(&secnonce->data[4], &k[0]); + secp256k1_scalar_get_b32(&secnonce->data[36], &k[1]); + secp256k1_ge_to_bytes(&secnonce->data[68], pk); +} + +static int secp256k1_musig_secnonce_load(const secp256k1_context* ctx, secp256k1_scalar *k, secp256k1_ge *pk, const secp256k1_musig_secnonce *secnonce) { + int is_zero; + ARG_CHECK(secp256k1_memcmp_var(&secnonce->data[0], secp256k1_musig_secnonce_magic, 4) == 0); + /* We make very sure that the nonce isn't invalidated by checking the values + * in addition to the magic. */ + is_zero = secp256k1_is_zero_array(&secnonce->data[4], 2 * 32); + secp256k1_declassify(ctx, &is_zero, sizeof(is_zero)); + ARG_CHECK(!is_zero); + + secp256k1_scalar_set_b32(&k[0], &secnonce->data[4], NULL); + secp256k1_scalar_set_b32(&k[1], &secnonce->data[36], NULL); + secp256k1_ge_from_bytes(pk, &secnonce->data[68]); + return 1; +} + +/* If flag is true, invalidate the secnonce; otherwise leave it. Constant-time. */ +static void secp256k1_musig_secnonce_invalidate(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, int flag) { + secp256k1_memczero(secnonce->data, sizeof(secnonce->data), flag); + /* The flag argument is usually classified. So, the line above makes the + * magic and public key classified. However, we need both to be + * declassified. Note that we don't declassify the entire object, because if + * flag is 0, then k[0] and k[1] have not been zeroed. */ + secp256k1_declassify(ctx, secnonce->data, sizeof(secp256k1_musig_secnonce_magic)); + secp256k1_declassify(ctx, &secnonce->data[68], 64); +} + +static const unsigned char secp256k1_musig_pubnonce_magic[4] = { 0xf5, 0x7a, 0x3d, 0xa0 }; + +/* Saves two group elements into a pubnonce. Requires that none of the provided + * group elements is infinity. */ +static void secp256k1_musig_pubnonce_save(secp256k1_musig_pubnonce* nonce, const secp256k1_ge* ges) { + int i; + memcpy(&nonce->data[0], secp256k1_musig_pubnonce_magic, 4); + for (i = 0; i < 2; i++) { + secp256k1_ge_to_bytes(nonce->data + 4+64*i, &ges[i]); + } +} + +/* Loads two group elements from a pubnonce. Returns 1 unless the nonce wasn't + * properly initialized */ +static int secp256k1_musig_pubnonce_load(const secp256k1_context* ctx, secp256k1_ge* ges, const secp256k1_musig_pubnonce* nonce) { + int i; + + ARG_CHECK(secp256k1_memcmp_var(&nonce->data[0], secp256k1_musig_pubnonce_magic, 4) == 0); + for (i = 0; i < 2; i++) { + secp256k1_ge_from_bytes(&ges[i], nonce->data + 4 + 64*i); + } + return 1; +} + +static const unsigned char secp256k1_musig_aggnonce_magic[4] = { 0xa8, 0xb7, 0xe4, 0x67 }; + +static void secp256k1_musig_aggnonce_save(secp256k1_musig_aggnonce* nonce, const secp256k1_ge* ges) { + int i; + memcpy(&nonce->data[0], secp256k1_musig_aggnonce_magic, 4); + for (i = 0; i < 2; i++) { + secp256k1_ge_to_bytes_ext(&nonce->data[4 + 64*i], &ges[i]); + } +} + +static int secp256k1_musig_aggnonce_load(const secp256k1_context* ctx, secp256k1_ge* ges, const secp256k1_musig_aggnonce* nonce) { + int i; + + ARG_CHECK(secp256k1_memcmp_var(&nonce->data[0], secp256k1_musig_aggnonce_magic, 4) == 0); + for (i = 0; i < 2; i++) { + secp256k1_ge_from_bytes_ext(&ges[i], &nonce->data[4 + 64*i]); + } + return 1; +} + +static const unsigned char secp256k1_musig_session_cache_magic[4] = { 0x9d, 0xed, 0xe9, 0x17 }; + +/* A session consists of + * - 4 byte session cache magic + * - 1 byte the parity of the final nonce + * - 32 byte serialized x-only final nonce + * - 32 byte nonce coefficient b + * - 32 byte signature challenge hash e + * - 32 byte scalar s that is added to the partial signatures of the signers + */ +static void secp256k1_musig_session_save(secp256k1_musig_session *session, const secp256k1_musig_session_internal *session_i) { + unsigned char *ptr = session->data; + + memcpy(ptr, secp256k1_musig_session_cache_magic, 4); + ptr += 4; + *ptr = session_i->fin_nonce_parity; + ptr += 1; + memcpy(ptr, session_i->fin_nonce, 32); + ptr += 32; + secp256k1_scalar_get_b32(ptr, &session_i->noncecoef); + ptr += 32; + secp256k1_scalar_get_b32(ptr, &session_i->challenge); + ptr += 32; + secp256k1_scalar_get_b32(ptr, &session_i->s_part); +} + +static int secp256k1_musig_session_load(const secp256k1_context* ctx, secp256k1_musig_session_internal *session_i, const secp256k1_musig_session *session) { + const unsigned char *ptr = session->data; + + ARG_CHECK(secp256k1_memcmp_var(ptr, secp256k1_musig_session_cache_magic, 4) == 0); + ptr += 4; + session_i->fin_nonce_parity = *ptr; + ptr += 1; + memcpy(session_i->fin_nonce, ptr, 32); + ptr += 32; + secp256k1_scalar_set_b32(&session_i->noncecoef, ptr, NULL); + ptr += 32; + secp256k1_scalar_set_b32(&session_i->challenge, ptr, NULL); + ptr += 32; + secp256k1_scalar_set_b32(&session_i->s_part, ptr, NULL); + return 1; +} + +static const unsigned char secp256k1_musig_partial_sig_magic[4] = { 0xeb, 0xfb, 0x1a, 0x32 }; + +static void secp256k1_musig_partial_sig_save(secp256k1_musig_partial_sig* sig, secp256k1_scalar *s) { + memcpy(&sig->data[0], secp256k1_musig_partial_sig_magic, 4); + secp256k1_scalar_get_b32(&sig->data[4], s); +} + +static int secp256k1_musig_partial_sig_load(const secp256k1_context* ctx, secp256k1_scalar *s, const secp256k1_musig_partial_sig* sig) { + int overflow; + + ARG_CHECK(secp256k1_memcmp_var(&sig->data[0], secp256k1_musig_partial_sig_magic, 4) == 0); + secp256k1_scalar_set_b32(s, &sig->data[4], &overflow); + /* Parsed signatures can not overflow */ + VERIFY_CHECK(!overflow); + return 1; +} + +int secp256k1_musig_pubnonce_parse(const secp256k1_context* ctx, secp256k1_musig_pubnonce* nonce, const unsigned char *in66) { + secp256k1_ge ges[2]; + int i; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(nonce != NULL); + ARG_CHECK(in66 != NULL); + + for (i = 0; i < 2; i++) { + if (!secp256k1_eckey_pubkey_parse(&ges[i], &in66[33*i], 33)) { + return 0; + } + if (!secp256k1_ge_is_in_correct_subgroup(&ges[i])) { + return 0; + } + } + secp256k1_musig_pubnonce_save(nonce, ges); + return 1; +} + +int secp256k1_musig_pubnonce_serialize(const secp256k1_context* ctx, unsigned char *out66, const secp256k1_musig_pubnonce* nonce) { + secp256k1_ge ges[2]; + int i; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(out66 != NULL); + memset(out66, 0, 66); + ARG_CHECK(nonce != NULL); + + if (!secp256k1_musig_pubnonce_load(ctx, ges, nonce)) { + return 0; + } + for (i = 0; i < 2; i++) { + int ret; + size_t size = 33; + ret = secp256k1_eckey_pubkey_serialize(&ges[i], &out66[33*i], &size, 1); +#ifdef VERIFY + /* serialize must succeed because the point was just loaded */ + VERIFY_CHECK(ret && size == 33); +#else + (void) ret; +#endif + } + return 1; +} + +int secp256k1_musig_aggnonce_parse(const secp256k1_context* ctx, secp256k1_musig_aggnonce* nonce, const unsigned char *in66) { + secp256k1_ge ges[2]; + int i; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(nonce != NULL); + ARG_CHECK(in66 != NULL); + + for (i = 0; i < 2; i++) { + if (!secp256k1_musig_ge_parse_ext(&ges[i], &in66[33*i])) { + return 0; + } + } + secp256k1_musig_aggnonce_save(nonce, ges); + return 1; +} + +int secp256k1_musig_aggnonce_serialize(const secp256k1_context* ctx, unsigned char *out66, const secp256k1_musig_aggnonce* nonce) { + secp256k1_ge ges[2]; + int i; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(out66 != NULL); + memset(out66, 0, 66); + ARG_CHECK(nonce != NULL); + + if (!secp256k1_musig_aggnonce_load(ctx, ges, nonce)) { + return 0; + } + for (i = 0; i < 2; i++) { + secp256k1_musig_ge_serialize_ext(&out66[33*i], &ges[i]); + } + return 1; +} + +int secp256k1_musig_partial_sig_parse(const secp256k1_context* ctx, secp256k1_musig_partial_sig* sig, const unsigned char *in32) { + secp256k1_scalar tmp; + int overflow; + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(sig != NULL); + ARG_CHECK(in32 != NULL); + + /* Ensure that using the signature will fail if parsing fails (and the user + * doesn't check the return value). */ + memset(sig, 0, sizeof(*sig)); + + secp256k1_scalar_set_b32(&tmp, in32, &overflow); + if (overflow) { + return 0; + } + secp256k1_musig_partial_sig_save(sig, &tmp); + return 1; +} + +int secp256k1_musig_partial_sig_serialize(const secp256k1_context* ctx, unsigned char *out32, const secp256k1_musig_partial_sig* sig) { + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(out32 != NULL); + ARG_CHECK(sig != NULL); + ARG_CHECK(secp256k1_memcmp_var(&sig->data[0], secp256k1_musig_partial_sig_magic, 4) == 0); + + memcpy(out32, &sig->data[4], 32); + return 1; +} + +/* Write optional inputs into the hash */ +static void secp256k1_nonce_function_musig_helper(secp256k1_sha256 *sha, unsigned int prefix_size, const unsigned char *data, unsigned char len) { + unsigned char zero[7] = { 0 }; + /* The spec requires length prefixes to be between 1 and 8 bytes + * (inclusive) */ + VERIFY_CHECK(prefix_size >= 1 && prefix_size <= 8); + /* Since the length of all input data fits in a byte, we can always pad the + * length prefix with prefix_size - 1 zero bytes. */ + secp256k1_sha256_write(sha, zero, prefix_size - 1); + if (data != NULL) { + secp256k1_sha256_write(sha, &len, 1); + secp256k1_sha256_write(sha, data, len); + } else { + len = 0; + secp256k1_sha256_write(sha, &len, 1); + } +} + +/* Initializes SHA256 with fixed midstate. This midstate was computed by applying + * SHA256 to SHA256("MuSig/aux")||SHA256("MuSig/aux"). */ +static void secp256k1_nonce_function_musig_sha256_tagged_aux(secp256k1_sha256 *sha) { + secp256k1_sha256_initialize(sha); + sha->s[0] = 0xa19e884bul; + sha->s[1] = 0xf463fe7eul; + sha->s[2] = 0x2f18f9a2ul; + sha->s[3] = 0xbeb0f9fful; + sha->s[4] = 0x0f37e8b0ul; + sha->s[5] = 0x06ebd26ful; + sha->s[6] = 0xe3b243d2ul; + sha->s[7] = 0x522fb150ul; + sha->bytes = 64; +} + +/* Initializes SHA256 with fixed midstate. This midstate was computed by applying + * SHA256 to SHA256("MuSig/nonce")||SHA256("MuSig/nonce"). */ +static void secp256k1_nonce_function_musig_sha256_tagged(secp256k1_sha256 *sha) { + secp256k1_sha256_initialize(sha); + sha->s[0] = 0x07101b64ul; + sha->s[1] = 0x18003414ul; + sha->s[2] = 0x0391bc43ul; + sha->s[3] = 0x0e6258eeul; + sha->s[4] = 0x29d26b72ul; + sha->s[5] = 0x8343937eul; + sha->s[6] = 0xb7a0a4fbul; + sha->s[7] = 0xff568a30ul; + sha->bytes = 64; +} + +static void secp256k1_nonce_function_musig(secp256k1_scalar *k, const unsigned char *session_secrand, const unsigned char *msg32, const unsigned char *seckey32, const unsigned char *pk33, const unsigned char *agg_pk32, const unsigned char *extra_input32) { + secp256k1_sha256 sha; + unsigned char rand[32]; + unsigned char i; + unsigned char msg_present; + + if (seckey32 != NULL) { + secp256k1_nonce_function_musig_sha256_tagged_aux(&sha); + secp256k1_sha256_write(&sha, session_secrand, 32); + secp256k1_sha256_finalize(&sha, rand); + for (i = 0; i < 32; i++) { + rand[i] ^= seckey32[i]; + } + } else { + memcpy(rand, session_secrand, sizeof(rand)); + } + + secp256k1_nonce_function_musig_sha256_tagged(&sha); + secp256k1_sha256_write(&sha, rand, sizeof(rand)); + secp256k1_nonce_function_musig_helper(&sha, 1, pk33, 33); + secp256k1_nonce_function_musig_helper(&sha, 1, agg_pk32, 32); + msg_present = msg32 != NULL; + secp256k1_sha256_write(&sha, &msg_present, 1); + if (msg_present) { + secp256k1_nonce_function_musig_helper(&sha, 8, msg32, 32); + } + secp256k1_nonce_function_musig_helper(&sha, 4, extra_input32, 32); + + for (i = 0; i < 2; i++) { + unsigned char buf[32]; + secp256k1_sha256 sha_tmp = sha; + secp256k1_sha256_write(&sha_tmp, &i, 1); + secp256k1_sha256_finalize(&sha_tmp, buf); + secp256k1_scalar_set_b32(&k[i], buf, NULL); + + /* Attempt to erase secret data */ + memset(buf, 0, sizeof(buf)); + memset(&sha_tmp, 0, sizeof(sha_tmp)); + } + memset(rand, 0, sizeof(rand)); + memset(&sha, 0, sizeof(sha)); +} + +int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, const unsigned char *input_nonce, const unsigned char *seckey, const secp256k1_pubkey *pubkey, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { + secp256k1_scalar k[2]; + secp256k1_ge nonce_pts[2]; + int i; + unsigned char pk_ser[33]; + size_t pk_ser_len = sizeof(pk_ser); + unsigned char aggpk_ser[32]; + unsigned char *aggpk_ser_ptr = NULL; + secp256k1_ge pk; + int pk_serialize_success; + int ret = 1; + + ARG_CHECK(pubnonce != NULL); + memset(pubnonce, 0, sizeof(*pubnonce)); + ARG_CHECK(pubkey != NULL); + ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx)); + + /* Check that the seckey is valid to be able to sign for it later. */ + if (seckey != NULL) { + secp256k1_scalar sk; + ret &= secp256k1_scalar_set_b32_seckey(&sk, seckey); + secp256k1_scalar_clear(&sk); + } + + if (keyagg_cache != NULL) { + secp256k1_keyagg_cache_internal cache_i; + if (!secp256k1_keyagg_cache_load(ctx, &cache_i, keyagg_cache)) { + return 0; + } + /* The loaded point cache_i.pk can not be the point at infinity. */ + secp256k1_fe_get_b32(aggpk_ser, &cache_i.pk.x); + aggpk_ser_ptr = aggpk_ser; + } + if (!secp256k1_pubkey_load(ctx, &pk, pubkey)) { + return 0; + } + pk_serialize_success = secp256k1_eckey_pubkey_serialize(&pk, pk_ser, &pk_ser_len, 1); + +#ifdef VERIFY + /* A pubkey cannot be the point at infinity */ + VERIFY_CHECK(pk_serialize_success); + VERIFY_CHECK(pk_ser_len == sizeof(pk_ser)); +#else + (void) pk_serialize_success; +#endif + + secp256k1_nonce_function_musig(k, input_nonce, msg32, seckey, pk_ser, aggpk_ser_ptr, extra_input32); + VERIFY_CHECK(!secp256k1_scalar_is_zero(&k[0])); + VERIFY_CHECK(!secp256k1_scalar_is_zero(&k[1])); + secp256k1_musig_secnonce_save(secnonce, k, &pk); + secp256k1_musig_secnonce_invalidate(ctx, secnonce, !ret); + + for (i = 0; i < 2; i++) { + secp256k1_gej nonce_ptj; + secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &nonce_ptj, &k[i]); + secp256k1_ge_set_gej(&nonce_pts[i], &nonce_ptj); + secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts)); + secp256k1_scalar_clear(&k[i]); + } + /* None of the nonce_pts will be infinity because k != 0 with overwhelming + * probability */ + secp256k1_musig_pubnonce_save(pubnonce, nonce_pts); + return ret; +} + +int secp256k1_musig_nonce_gen(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, unsigned char *session_secrand32, const unsigned char *seckey, const secp256k1_pubkey *pubkey, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { + int ret = 1; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(secnonce != NULL); + memset(secnonce, 0, sizeof(*secnonce)); + ARG_CHECK(session_secrand32 != NULL); + + /* Check in constant time that the session_secrand32 is not 0 as a + * defense-in-depth measure that may protect against a faulty RNG. */ + ret &= !secp256k1_is_zero_array(session_secrand32, 32); + + /* We can declassify because branching on ret is only relevant when this + * function called with an invalid session_secrand32 argument */ + secp256k1_declassify(ctx, &ret, sizeof(ret)); + if (ret == 0) { + secp256k1_musig_secnonce_invalidate(ctx, secnonce, 1); + return 0; + } + + ret &= secp256k1_musig_nonce_gen_internal(ctx, secnonce, pubnonce, session_secrand32, seckey, pubkey, msg32, keyagg_cache, extra_input32); + + /* Set the session_secrand32 buffer to zero to prevent the caller from using + * nonce_gen multiple times with the same buffer. */ + secp256k1_memczero(session_secrand32, 32, ret); + return ret; +} + +int secp256k1_musig_nonce_gen_counter(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, uint64_t nonrepeating_cnt, const secp256k1_keypair *keypair, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { + unsigned char buf[32] = { 0 }; + unsigned char seckey[32]; + secp256k1_pubkey pubkey; + int ret; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(secnonce != NULL); + memset(secnonce, 0, sizeof(*secnonce)); + ARG_CHECK(keypair != NULL); + + secp256k1_write_be64(buf, nonrepeating_cnt); + /* keypair_sec and keypair_pub do not fail if the arguments are not NULL */ + ret = secp256k1_keypair_sec(ctx, seckey, keypair); + VERIFY_CHECK(ret); + ret = secp256k1_keypair_pub(ctx, &pubkey, keypair); + VERIFY_CHECK(ret); +#ifndef VERIFY + (void) ret; +#endif + + if (!secp256k1_musig_nonce_gen_internal(ctx, secnonce, pubnonce, buf, seckey, &pubkey, msg32, keyagg_cache, extra_input32)) { + return 0; + } + memset(seckey, 0, sizeof(seckey)); + return 1; +} + +static int secp256k1_musig_sum_pubnonces(const secp256k1_context* ctx, secp256k1_gej *summed_pubnonces, const secp256k1_musig_pubnonce * const* pubnonces, size_t n_pubnonces) { + size_t i; + int j; + + secp256k1_gej_set_infinity(&summed_pubnonces[0]); + secp256k1_gej_set_infinity(&summed_pubnonces[1]); + + for (i = 0; i < n_pubnonces; i++) { + secp256k1_ge nonce_pts[2]; + if (!secp256k1_musig_pubnonce_load(ctx, nonce_pts, pubnonces[i])) { + return 0; + } + for (j = 0; j < 2; j++) { + secp256k1_gej_add_ge_var(&summed_pubnonces[j], &summed_pubnonces[j], &nonce_pts[j], NULL); + } + } + return 1; +} + +int secp256k1_musig_nonce_agg(const secp256k1_context* ctx, secp256k1_musig_aggnonce *aggnonce, const secp256k1_musig_pubnonce * const* pubnonces, size_t n_pubnonces) { + secp256k1_gej aggnonce_ptsj[2]; + secp256k1_ge aggnonce_pts[2]; + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(aggnonce != NULL); + ARG_CHECK(pubnonces != NULL); + ARG_CHECK(n_pubnonces > 0); + + if (!secp256k1_musig_sum_pubnonces(ctx, aggnonce_ptsj, pubnonces, n_pubnonces)) { + return 0; + } + secp256k1_ge_set_all_gej_var(aggnonce_pts, aggnonce_ptsj, 2); + secp256k1_musig_aggnonce_save(aggnonce, aggnonce_pts); + return 1; +} + +/* Initializes SHA256 with fixed midstate. This midstate was computed by applying + * SHA256 to SHA256("MuSig/noncecoef")||SHA256("MuSig/noncecoef"). */ +static void secp256k1_musig_compute_noncehash_sha256_tagged(secp256k1_sha256 *sha) { + secp256k1_sha256_initialize(sha); + sha->s[0] = 0x2c7d5a45ul; + sha->s[1] = 0x06bf7e53ul; + sha->s[2] = 0x89be68a6ul; + sha->s[3] = 0x971254c0ul; + sha->s[4] = 0x60ac12d2ul; + sha->s[5] = 0x72846dcdul; + sha->s[6] = 0x6c81212ful; + sha->s[7] = 0xde7a2500ul; + sha->bytes = 64; +} + +/* tagged_hash(aggnonce[0], aggnonce[1], agg_pk, msg) */ +static void secp256k1_musig_compute_noncehash(unsigned char *noncehash, secp256k1_ge *aggnonce, const unsigned char *agg_pk32, const unsigned char *msg) { + unsigned char buf[33]; + secp256k1_sha256 sha; + int i; + + secp256k1_musig_compute_noncehash_sha256_tagged(&sha); + for (i = 0; i < 2; i++) { + secp256k1_musig_ge_serialize_ext(buf, &aggnonce[i]); + secp256k1_sha256_write(&sha, buf, sizeof(buf)); + } + secp256k1_sha256_write(&sha, agg_pk32, 32); + secp256k1_sha256_write(&sha, msg, 32); + secp256k1_sha256_finalize(&sha, noncehash); +} + +/* out_nonce = nonce_pts[0] + b*nonce_pts[1] */ +static void secp256k1_effective_nonce(secp256k1_gej *out_nonce, const secp256k1_ge *nonce_pts, const secp256k1_scalar *b) { + secp256k1_gej tmp; + + secp256k1_gej_set_ge(&tmp, &nonce_pts[1]); + secp256k1_ecmult(out_nonce, &tmp, b, NULL); + secp256k1_gej_add_ge_var(out_nonce, out_nonce, &nonce_pts[0], NULL); +} + +static void secp256k1_musig_nonce_process_internal(int *fin_nonce_parity, unsigned char *fin_nonce, secp256k1_scalar *b, secp256k1_ge *aggnonce_pts, const unsigned char *agg_pk32, const unsigned char *msg) { + unsigned char noncehash[32]; + secp256k1_ge fin_nonce_pt; + secp256k1_gej fin_nonce_ptj; + + secp256k1_musig_compute_noncehash(noncehash, aggnonce_pts, agg_pk32, msg); + secp256k1_scalar_set_b32(b, noncehash, NULL); + /* fin_nonce = aggnonce_pts[0] + b*aggnonce_pts[1] */ + secp256k1_effective_nonce(&fin_nonce_ptj, aggnonce_pts, b); + secp256k1_ge_set_gej(&fin_nonce_pt, &fin_nonce_ptj); + if (secp256k1_ge_is_infinity(&fin_nonce_pt)) { + fin_nonce_pt = secp256k1_ge_const_g; + } + /* fin_nonce_pt is not the point at infinity */ + secp256k1_fe_normalize_var(&fin_nonce_pt.x); + secp256k1_fe_get_b32(fin_nonce, &fin_nonce_pt.x); + secp256k1_fe_normalize_var(&fin_nonce_pt.y); + *fin_nonce_parity = secp256k1_fe_is_odd(&fin_nonce_pt.y); +} + +int secp256k1_musig_nonce_process(const secp256k1_context* ctx, secp256k1_musig_session *session, const secp256k1_musig_aggnonce *aggnonce, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache) { + secp256k1_keyagg_cache_internal cache_i; + secp256k1_ge aggnonce_pts[2]; + unsigned char fin_nonce[32]; + secp256k1_musig_session_internal session_i; + unsigned char agg_pk32[32]; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(session != NULL); + ARG_CHECK(aggnonce != NULL); + ARG_CHECK(msg32 != NULL); + ARG_CHECK(keyagg_cache != NULL); + + if (!secp256k1_keyagg_cache_load(ctx, &cache_i, keyagg_cache)) { + return 0; + } + secp256k1_fe_get_b32(agg_pk32, &cache_i.pk.x); + + if (!secp256k1_musig_aggnonce_load(ctx, aggnonce_pts, aggnonce)) { + return 0; + } + + secp256k1_musig_nonce_process_internal(&session_i.fin_nonce_parity, fin_nonce, &session_i.noncecoef, aggnonce_pts, agg_pk32, msg32); + secp256k1_schnorrsig_challenge(&session_i.challenge, fin_nonce, msg32, 32, agg_pk32); + + /* If there is a tweak then set `challenge` times `tweak` to the `s`-part.*/ + secp256k1_scalar_set_int(&session_i.s_part, 0); + if (!secp256k1_scalar_is_zero(&cache_i.tweak)) { + secp256k1_scalar e_tmp; + secp256k1_scalar_mul(&e_tmp, &session_i.challenge, &cache_i.tweak); + if (secp256k1_fe_is_odd(&cache_i.pk.y)) { + secp256k1_scalar_negate(&e_tmp, &e_tmp); + } + session_i.s_part = e_tmp; + } + memcpy(session_i.fin_nonce, fin_nonce, sizeof(session_i.fin_nonce)); + secp256k1_musig_session_save(session, &session_i); + return 1; +} + +static void secp256k1_musig_partial_sign_clear(secp256k1_scalar *sk, secp256k1_scalar *k) { + secp256k1_scalar_clear(sk); + secp256k1_scalar_clear(&k[0]); + secp256k1_scalar_clear(&k[1]); +} + +int secp256k1_musig_partial_sign(const secp256k1_context* ctx, secp256k1_musig_partial_sig *partial_sig, secp256k1_musig_secnonce *secnonce, const secp256k1_keypair *keypair, const secp256k1_musig_keyagg_cache *keyagg_cache, const secp256k1_musig_session *session) { + secp256k1_scalar sk; + secp256k1_ge pk, keypair_pk; + secp256k1_scalar k[2]; + secp256k1_scalar mu, s; + secp256k1_keyagg_cache_internal cache_i; + secp256k1_musig_session_internal session_i; + int ret; + + VERIFY_CHECK(ctx != NULL); + + ARG_CHECK(secnonce != NULL); + /* Fails if the magic doesn't match */ + ret = secp256k1_musig_secnonce_load(ctx, k, &pk, secnonce); + /* Set nonce to zero to avoid nonce reuse. This will cause subsequent calls + * of this function to fail */ + memset(secnonce, 0, sizeof(*secnonce)); + if (!ret) { + secp256k1_musig_partial_sign_clear(&sk, k); + return 0; + } + + ARG_CHECK(partial_sig != NULL); + ARG_CHECK(keypair != NULL); + ARG_CHECK(keyagg_cache != NULL); + ARG_CHECK(session != NULL); + + if (!secp256k1_keypair_load(ctx, &sk, &keypair_pk, keypair)) { + secp256k1_musig_partial_sign_clear(&sk, k); + return 0; + } + ARG_CHECK(secp256k1_fe_equal(&pk.x, &keypair_pk.x) + && secp256k1_fe_equal(&pk.y, &keypair_pk.y)); + if (!secp256k1_keyagg_cache_load(ctx, &cache_i, keyagg_cache)) { + secp256k1_musig_partial_sign_clear(&sk, k); + return 0; + } + + /* Negate sk if secp256k1_fe_is_odd(&cache_i.pk.y)) XOR cache_i.parity_acc. + * This corresponds to the line "Let d = gâ‹…gaccâ‹…d' mod n" in the + * specification. */ + if ((secp256k1_fe_is_odd(&cache_i.pk.y) + != cache_i.parity_acc)) { + secp256k1_scalar_negate(&sk, &sk); + } + + /* Multiply KeyAgg coefficient */ + secp256k1_musig_keyaggcoef(&mu, &cache_i, &pk); + secp256k1_scalar_mul(&sk, &sk, &mu); + + if (!secp256k1_musig_session_load(ctx, &session_i, session)) { + secp256k1_musig_partial_sign_clear(&sk, k); + return 0; + } + + if (session_i.fin_nonce_parity) { + secp256k1_scalar_negate(&k[0], &k[0]); + secp256k1_scalar_negate(&k[1], &k[1]); + } + + /* Sign */ + secp256k1_scalar_mul(&s, &session_i.challenge, &sk); + secp256k1_scalar_mul(&k[1], &session_i.noncecoef, &k[1]); + secp256k1_scalar_add(&k[0], &k[0], &k[1]); + secp256k1_scalar_add(&s, &s, &k[0]); + secp256k1_musig_partial_sig_save(partial_sig, &s); + secp256k1_musig_partial_sign_clear(&sk, k); + return 1; +} + +int secp256k1_musig_partial_sig_verify(const secp256k1_context* ctx, const secp256k1_musig_partial_sig *partial_sig, const secp256k1_musig_pubnonce *pubnonce, const secp256k1_pubkey *pubkey, const secp256k1_musig_keyagg_cache *keyagg_cache, const secp256k1_musig_session *session) { + secp256k1_keyagg_cache_internal cache_i; + secp256k1_musig_session_internal session_i; + secp256k1_scalar mu, e, s; + secp256k1_gej pkj; + secp256k1_ge nonce_pts[2]; + secp256k1_gej rj; + secp256k1_gej tmp; + secp256k1_ge pkp; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(partial_sig != NULL); + ARG_CHECK(pubnonce != NULL); + ARG_CHECK(pubkey != NULL); + ARG_CHECK(keyagg_cache != NULL); + ARG_CHECK(session != NULL); + + if (!secp256k1_musig_session_load(ctx, &session_i, session)) { + return 0; + } + + if (!secp256k1_musig_pubnonce_load(ctx, nonce_pts, pubnonce)) { + return 0; + } + /* Compute "effective" nonce rj = nonce_pts[0] + b*nonce_pts[1] */ + /* TODO: use multiexp to compute -s*G + e*mu*pubkey + nonce_pts[0] + b*nonce_pts[1] */ + secp256k1_effective_nonce(&rj, nonce_pts, &session_i.noncecoef); + + if (!secp256k1_pubkey_load(ctx, &pkp, pubkey)) { + return 0; + } + if (!secp256k1_keyagg_cache_load(ctx, &cache_i, keyagg_cache)) { + return 0; + } + /* Multiplying the challenge by the KeyAgg coefficient is equivalent + * to multiplying the signer's public key by the coefficient, except + * much easier to do. */ + secp256k1_musig_keyaggcoef(&mu, &cache_i, &pkp); + secp256k1_scalar_mul(&e, &session_i.challenge, &mu); + + /* Negate e if secp256k1_fe_is_odd(&cache_i.pk.y)) XOR cache_i.parity_acc. + * This corresponds to the line "Let g' = gâ‹…gacc mod n" and the multiplication "g'â‹…e" + * in the specification. */ + if (secp256k1_fe_is_odd(&cache_i.pk.y) + != cache_i.parity_acc) { + secp256k1_scalar_negate(&e, &e); + } + + if (!secp256k1_musig_partial_sig_load(ctx, &s, partial_sig)) { + return 0; + } + /* Compute -s*G + e*pkj + rj (e already includes the keyagg coefficient mu) */ + secp256k1_scalar_negate(&s, &s); + secp256k1_gej_set_ge(&pkj, &pkp); + secp256k1_ecmult(&tmp, &pkj, &e, &s); + if (session_i.fin_nonce_parity) { + secp256k1_gej_neg(&rj, &rj); + } + secp256k1_gej_add_var(&tmp, &tmp, &rj, NULL); + + return secp256k1_gej_is_infinity(&tmp); +} + +int secp256k1_musig_partial_sig_agg(const secp256k1_context* ctx, unsigned char *sig64, const secp256k1_musig_session *session, const secp256k1_musig_partial_sig * const* partial_sigs, size_t n_sigs) { + size_t i; + secp256k1_musig_session_internal session_i; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(sig64 != NULL); + ARG_CHECK(session != NULL); + ARG_CHECK(partial_sigs != NULL); + ARG_CHECK(n_sigs > 0); + + if (!secp256k1_musig_session_load(ctx, &session_i, session)) { + return 0; + } + for (i = 0; i < n_sigs; i++) { + secp256k1_scalar term; + if (!secp256k1_musig_partial_sig_load(ctx, &term, partial_sigs[i])) { + return 0; + } + secp256k1_scalar_add(&session_i.s_part, &session_i.s_part, &term); + } + secp256k1_scalar_get_b32(&sig64[32], &session_i.s_part); + memcpy(&sig64[0], session_i.fin_nonce, 32); + return 1; +} + +#endif diff --git a/src/modules/musig/tests_impl.h b/src/modules/musig/tests_impl.h new file mode 100644 index 0000000000..ce6ae1784d --- /dev/null +++ b/src/modules/musig/tests_impl.h @@ -0,0 +1,1143 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_MUSIG_TESTS_IMPL_H +#define SECP256K1_MODULE_MUSIG_TESTS_IMPL_H + +#include +#include + +#include "../../../include/secp256k1.h" +#include "../../../include/secp256k1_extrakeys.h" +#include "../../../include/secp256k1_musig.h" + +#include "session.h" +#include "keyagg.h" +#include "../../scalar.h" +#include "../../field.h" +#include "../../group.h" +#include "../../hash.h" +#include "../../util.h" + +#include "vectors.h" + +static int create_keypair_and_pk(secp256k1_keypair *keypair, secp256k1_pubkey *pk, const unsigned char *sk) { + int ret; + secp256k1_keypair keypair_tmp; + ret = secp256k1_keypair_create(CTX, &keypair_tmp, sk); + ret &= secp256k1_keypair_pub(CTX, pk, &keypair_tmp); + if (keypair != NULL) { + *keypair = keypair_tmp; + } + return ret; +} + +/* Just a simple (non-tweaked) 2-of-2 MuSig aggregate, sign, verify + * test. */ +static void musig_simple_test(void) { + unsigned char sk[2][32]; + secp256k1_keypair keypair[2]; + secp256k1_musig_pubnonce pubnonce[2]; + const secp256k1_musig_pubnonce *pubnonce_ptr[2]; + secp256k1_musig_aggnonce aggnonce; + unsigned char msg[32]; + secp256k1_xonly_pubkey agg_pk; + secp256k1_musig_keyagg_cache keyagg_cache; + unsigned char session_secrand[2][32]; + secp256k1_musig_secnonce secnonce[2]; + secp256k1_pubkey pk[2]; + const secp256k1_pubkey *pk_ptr[2]; + secp256k1_musig_partial_sig partial_sig[2]; + const secp256k1_musig_partial_sig *partial_sig_ptr[2]; + unsigned char final_sig[64]; + secp256k1_musig_session session; + int i; + + testrand256(msg); + for (i = 0; i < 2; i++) { + testrand256(sk[i]); + pk_ptr[i] = &pk[i]; + pubnonce_ptr[i] = &pubnonce[i]; + partial_sig_ptr[i] = &partial_sig[i]; + + CHECK(create_keypair_and_pk(&keypair[i], &pk[i], sk[i])); + if (i == 0) { + testrand256(session_secrand[i]); + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[i], &pubnonce[i], session_secrand[i], sk[i], &pk[i], NULL, NULL, NULL) == 1); + } else { + uint64_t nonrepeating_cnt = 0; + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[i], &pubnonce[i], nonrepeating_cnt, &keypair[i], NULL, NULL, NULL) == 1); + } + } + + CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 2) == 1); + CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1); + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &keyagg_cache) == 1); + + for (i = 0; i < 2; i++) { + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[i], &secnonce[i], &keypair[i], &keyagg_cache, &session) == 1); + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[i], &pubnonce[i], &pk[i], &keyagg_cache, &session) == 1); + } + + CHECK(secp256k1_musig_partial_sig_agg(CTX, final_sig, &session, partial_sig_ptr, 2) == 1); + CHECK(secp256k1_schnorrsig_verify(CTX, final_sig, msg, sizeof(msg), &agg_pk) == 1); +} + +/* Generate two pubnonces such that both group elements of their sum (calculated + * with secp256k1_musig_sum_pubnonces) are infinity. */ +static void pubnonce_summing_to_inf(secp256k1_musig_pubnonce *pubnonce) { + secp256k1_ge ge[2]; + int i; + secp256k1_gej summed_pubnonces[2]; + const secp256k1_musig_pubnonce *pubnonce_ptr[2]; + + testutil_random_ge_test(&ge[0]); + testutil_random_ge_test(&ge[1]); + + for (i = 0; i < 2; i++) { + secp256k1_musig_pubnonce_save(&pubnonce[i], ge); + pubnonce_ptr[i] = &pubnonce[i]; + secp256k1_ge_neg(&ge[0], &ge[0]); + secp256k1_ge_neg(&ge[1], &ge[1]); + } + + secp256k1_musig_sum_pubnonces(CTX, summed_pubnonces, pubnonce_ptr, 2); + CHECK(secp256k1_gej_is_infinity(&summed_pubnonces[0])); + CHECK(secp256k1_gej_is_infinity(&summed_pubnonces[1])); +} + +int memcmp_and_randomize(unsigned char *value, const unsigned char *expected, size_t len) { + int ret; + size_t i; + ret = secp256k1_memcmp_var(value, expected, len); + for (i = 0; i < len; i++) { + value[i] = testrand_bits(8); + } + return ret; +} + +static void musig_api_tests(void) { + secp256k1_musig_partial_sig partial_sig[2]; + const secp256k1_musig_partial_sig *partial_sig_ptr[2]; + secp256k1_musig_partial_sig invalid_partial_sig; + const secp256k1_musig_partial_sig *invalid_partial_sig_ptr[2]; + unsigned char pre_sig[64]; + unsigned char buf[32]; + unsigned char sk[2][32]; + secp256k1_keypair keypair[2]; + secp256k1_keypair invalid_keypair; + unsigned char max64[64]; + unsigned char zeros132[132] = { 0 }; + unsigned char session_secrand[2][32]; + unsigned char nonrepeating_cnt = 0; + secp256k1_musig_secnonce secnonce[2]; + secp256k1_musig_secnonce secnonce_tmp; + secp256k1_musig_secnonce invalid_secnonce; + secp256k1_musig_pubnonce pubnonce[2]; + const secp256k1_musig_pubnonce *pubnonce_ptr[2]; + unsigned char pubnonce_ser[66]; + secp256k1_musig_pubnonce inf_pubnonce[2]; + const secp256k1_musig_pubnonce *inf_pubnonce_ptr[2]; + secp256k1_musig_pubnonce invalid_pubnonce; + const secp256k1_musig_pubnonce *invalid_pubnonce_ptr[1]; + secp256k1_musig_aggnonce aggnonce; + unsigned char aggnonce_ser[66]; + unsigned char msg[32]; + secp256k1_xonly_pubkey agg_pk; + secp256k1_pubkey full_agg_pk; + secp256k1_musig_keyagg_cache keyagg_cache; + secp256k1_musig_keyagg_cache invalid_keyagg_cache; + secp256k1_musig_session session; + secp256k1_musig_session invalid_session; + secp256k1_pubkey pk[2]; + const secp256k1_pubkey *pk_ptr[2]; + secp256k1_pubkey invalid_pk; + const secp256k1_pubkey *invalid_pk_ptr2[2]; + const secp256k1_pubkey *invalid_pk_ptr3[3]; + unsigned char tweak[32]; + int i; + + /** setup **/ + memset(max64, 0xff, sizeof(max64)); + memset(&invalid_keypair, 0, sizeof(invalid_keypair)); + memset(&invalid_pk, 0, sizeof(invalid_pk)); + memset(&invalid_secnonce, 0, sizeof(invalid_secnonce)); + memset(&invalid_partial_sig, 0, sizeof(invalid_partial_sig)); + pubnonce_summing_to_inf(inf_pubnonce); + /* Simulate structs being uninitialized by setting it to 0s. We don't want + * to produce undefined behavior by actually providing uninitialized + * structs. */ + memset(&invalid_keyagg_cache, 0, sizeof(invalid_keyagg_cache)); + memset(&invalid_pk, 0, sizeof(invalid_pk)); + memset(&invalid_pubnonce, 0, sizeof(invalid_pubnonce)); + memset(&invalid_session, 0, sizeof(invalid_session)); + + testrand256(msg); + testrand256(tweak); + for (i = 0; i < 2; i++) { + pk_ptr[i] = &pk[i]; + invalid_pk_ptr2[i] = &invalid_pk; + invalid_pk_ptr3[i] = &pk[i]; + pubnonce_ptr[i] = &pubnonce[i]; + inf_pubnonce_ptr[i] = &inf_pubnonce[i]; + partial_sig_ptr[i] = &partial_sig[i]; + invalid_partial_sig_ptr[i] = &partial_sig[i]; + testrand256(session_secrand[i]); + testrand256(sk[i]); + CHECK(create_keypair_and_pk(&keypair[i], &pk[i], sk[i])); + } + invalid_pubnonce_ptr[0] = &invalid_pubnonce; + invalid_partial_sig_ptr[0] = &invalid_partial_sig; + /* invalid_pk_ptr3 has two valid, one invalid pk, which is important to test + * musig_pubkey_agg */ + invalid_pk_ptr3[2] = &invalid_pk; + + /** main test body **/ + + /** Key aggregation **/ + CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 2) == 1); + CHECK(secp256k1_musig_pubkey_agg(CTX, NULL, &keyagg_cache, pk_ptr, 2) == 1); + CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, NULL, pk_ptr, 2) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, NULL, 2)); + CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, invalid_pk_ptr2, 2)); + CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, invalid_pk_ptr3, 3)); + CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 0)); + CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, NULL, 0)); + CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0); + + CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 2) == 1); + + /* pubkey_get */ + CHECK(secp256k1_musig_pubkey_get(CTX, &full_agg_pk, &keyagg_cache) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_get(CTX, NULL, &keyagg_cache)); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_get(CTX, &full_agg_pk, NULL)); + CHECK(secp256k1_memcmp_var(&full_agg_pk, zeros132, sizeof(full_agg_pk)) == 0); + + /** Tweaking **/ + { + int (*tweak_func[2]) (const secp256k1_context* ctx, secp256k1_pubkey *output_pubkey, secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *tweak32); + tweak_func[0] = secp256k1_musig_pubkey_ec_tweak_add; + tweak_func[1] = secp256k1_musig_pubkey_xonly_tweak_add; + for (i = 0; i < 2; i++) { + secp256k1_pubkey tmp_output_pk; + secp256k1_musig_keyagg_cache tmp_keyagg_cache = keyagg_cache; + CHECK((*tweak_func[i])(CTX, &tmp_output_pk, &tmp_keyagg_cache, tweak) == 1); + /* Reset keyagg_cache */ + tmp_keyagg_cache = keyagg_cache; + CHECK((*tweak_func[i])(CTX, NULL, &tmp_keyagg_cache, tweak) == 1); + tmp_keyagg_cache = keyagg_cache; + CHECK_ILLEGAL(CTX, (*tweak_func[i])(CTX, &tmp_output_pk, NULL, tweak)); + CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0); + tmp_keyagg_cache = keyagg_cache; + CHECK_ILLEGAL(CTX, (*tweak_func[i])(CTX, &tmp_output_pk, &tmp_keyagg_cache, NULL)); + CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0); + tmp_keyagg_cache = keyagg_cache; + CHECK((*tweak_func[i])(CTX, &tmp_output_pk, &tmp_keyagg_cache, max64) == 0); + CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0); + tmp_keyagg_cache = keyagg_cache; + /* Uninitialized keyagg_cache */ + CHECK_ILLEGAL(CTX, (*tweak_func[i])(CTX, &tmp_output_pk, &invalid_keyagg_cache, tweak)); + CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0); + } + } + + /** Session creation with nonce_gen **/ + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64) == 1); + /* nonce_gen, if successful, sets session_secrand to the zero array, which + * makes subsequent nonce_gen calls with the same session_secrand fail. So + * check that session_secrand is indeed the zero array and fill it with + * random values again. */ + CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0); + + CHECK_ILLEGAL(STATIC_CTX, secp256k1_musig_nonce_gen(STATIC_CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, NULL, &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64)); + + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], NULL, session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], NULL, sk[0], &pk[0], msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + /* session_secrand = 0 is disallowed because it indicates a faulty RNG */ + memcpy(&session_secrand[0], zeros132, sizeof(session_secrand[0])); + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], zeros132, sk[0], &pk[0], msg, &keyagg_cache, max64) == 0); + CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], NULL, &pk[0], msg, &keyagg_cache, max64) == 1); + CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0); + + /* invalid seckey */ + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], max64, &pk[0], msg, &keyagg_cache, max64) == 0); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], NULL, msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &invalid_pk, msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], NULL, &keyagg_cache, max64) == 1); + CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0); + + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, NULL, max64) == 1); + CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0); + + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &invalid_keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, NULL) == 1); + CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0); + + /* Every in-argument except session_secrand and pubkey can be NULL */ + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], NULL, &pk[0], NULL, NULL, NULL) == 1); + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[1], &pubnonce[1], session_secrand[1], sk[1], &pk[1], NULL, NULL, NULL) == 1); + + /** Session creation with nonce_gen_counter **/ + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64) == 1); + CHECK_ILLEGAL(STATIC_CTX, secp256k1_musig_nonce_gen_counter(STATIC_CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, NULL, &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], NULL, nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + /* using nonce_gen_counter requires keypair */ + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, NULL, msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + /* invalid keypair */ + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &invalid_keypair, msg, &keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], NULL, &keyagg_cache, max64) == 1); + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, NULL, max64) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &invalid_keyagg_cache, max64)); + CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0); + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt,&keypair[0], msg, &keyagg_cache, NULL) == 1); + + /* Every in-argument except nonrepeating_cnt and keypair can be NULL */ + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], NULL, NULL, NULL) == 1); + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[1], &pubnonce[1], nonrepeating_cnt, &keypair[1], NULL, NULL, NULL) == 1); + + + /** Serialize and parse public nonces **/ + CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_serialize(CTX, NULL, &pubnonce[0])); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, NULL)); + CHECK(memcmp_and_randomize(pubnonce_ser, zeros132, sizeof(pubnonce_ser)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, &invalid_pubnonce)); + CHECK(memcmp_and_randomize(pubnonce_ser, zeros132, sizeof(pubnonce_ser)) == 0); + CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, &pubnonce[0]) == 1); + + CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], pubnonce_ser) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_parse(CTX, NULL, pubnonce_ser)); + CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], NULL)); + CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], zeros132) == 0); + CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], pubnonce_ser) == 1); + + { + /* Check that serialize and parse results in the same value */ + secp256k1_musig_pubnonce tmp; + CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, &pubnonce[0]) == 1); + CHECK(secp256k1_musig_pubnonce_parse(CTX, &tmp, pubnonce_ser) == 1); + CHECK(secp256k1_memcmp_var(&tmp, &pubnonce[0], sizeof(tmp)) == 0); + } + + /** Receive nonces and aggregate **/ + CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, NULL, pubnonce_ptr, 2)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, NULL, 2)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 0)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, invalid_pubnonce_ptr, 1)); + CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, inf_pubnonce_ptr, 2) == 1); + { + /* Check that the aggnonce encodes two points at infinity */ + secp256k1_ge aggnonce_pt[2]; + secp256k1_musig_aggnonce_load(CTX, aggnonce_pt, &aggnonce); + for (i = 0; i < 2; i++) { + secp256k1_ge_is_infinity(&aggnonce_pt[i]); + } + } + CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1); + + /** Serialize and parse aggregate nonces **/ + CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, &aggnonce) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_serialize(CTX, NULL, &aggnonce)); + CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, NULL)); + CHECK(memcmp_and_randomize(aggnonce_ser, zeros132, sizeof(aggnonce_ser)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, (secp256k1_musig_aggnonce*) &invalid_pubnonce)); + CHECK(memcmp_and_randomize(aggnonce_ser, zeros132, sizeof(aggnonce_ser)) == 0); + CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, &aggnonce) == 1); + + CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, aggnonce_ser) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_parse(CTX, NULL, aggnonce_ser)); + CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_parse(CTX, &aggnonce, NULL)); + CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, zeros132) == 1); + CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, aggnonce_ser) == 1); + + { + /* Check that serialize and parse results in the same value */ + secp256k1_musig_aggnonce tmp; + CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, &aggnonce) == 1); + CHECK(secp256k1_musig_aggnonce_parse(CTX, &tmp, aggnonce_ser) == 1); + CHECK(secp256k1_memcmp_var(&tmp, &aggnonce, sizeof(tmp)) == 0); + } + + /** Process nonces **/ + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &keyagg_cache) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, NULL, &aggnonce, msg, &keyagg_cache)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, NULL, msg, &keyagg_cache)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, (secp256k1_musig_aggnonce*) &invalid_pubnonce, msg, &keyagg_cache)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, &aggnonce, NULL, &keyagg_cache)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &invalid_keyagg_cache)); + + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &keyagg_cache) == 1); + + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, &session) == 1); + /* The secnonce is set to 0 and subsequent signing attempts fail */ + CHECK(secp256k1_memcmp_var(&secnonce_tmp, zeros132, sizeof(secnonce_tmp)) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, &session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, NULL, &secnonce_tmp, &keypair[0], &keyagg_cache, &session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], NULL, &keypair[0], &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &invalid_secnonce, &keypair[0], &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, NULL, &keyagg_cache, &session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &invalid_keypair, &keyagg_cache, &session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + { + unsigned char sk_tmp[32]; + secp256k1_keypair keypair_tmp; + testrand256(sk_tmp); + CHECK(secp256k1_keypair_create(CTX, &keypair_tmp, sk_tmp)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair_tmp, &keyagg_cache, &session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + } + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], NULL, &session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &invalid_keyagg_cache, &session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, NULL)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, &invalid_session)); + memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp)); + + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce[0], &keypair[0], &keyagg_cache, &session) == 1); + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[1], &secnonce[1], &keypair[1], &keyagg_cache, &session) == 1); + + CHECK(secp256k1_musig_partial_sig_serialize(CTX, buf, &partial_sig[0]) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_serialize(CTX, NULL, &partial_sig[0])); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_serialize(CTX, buf, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_serialize(CTX, buf, &invalid_partial_sig)); + CHECK(secp256k1_musig_partial_sig_parse(CTX, &partial_sig[0], buf) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_parse(CTX, NULL, buf)); + { + /* Check that parsing failure results in an invalid sig */ + secp256k1_musig_partial_sig tmp; + CHECK(secp256k1_musig_partial_sig_parse(CTX, &tmp, max64) == 0); + CHECK(secp256k1_memcmp_var(&tmp, zeros132, sizeof(partial_sig[0])) == 0); + } + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_parse(CTX, &partial_sig[0], NULL)); + + { + /* Check that serialize and parse results in the same value */ + secp256k1_musig_partial_sig tmp; + CHECK(secp256k1_musig_partial_sig_serialize(CTX, buf, &partial_sig[0]) == 1); + CHECK(secp256k1_musig_partial_sig_parse(CTX, &tmp, buf) == 1); + CHECK(secp256k1_memcmp_var(&tmp, &partial_sig[0], sizeof(tmp)) == 0); + } + + /** Partial signature verification */ + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, &session) == 1); + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[1], &pubnonce[0], &pk[0], &keyagg_cache, &session) == 0); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, NULL, &pubnonce[0], &pk[0], &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &invalid_partial_sig, &pubnonce[0], &pk[0], &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], NULL, &pk[0], &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &invalid_pubnonce, &pk[0], &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], NULL, &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &invalid_pk, &keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], NULL, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &invalid_keyagg_cache, &session)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, &invalid_session)); + + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, &session) == 1); + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[1], &pubnonce[1], &pk[1], &keyagg_cache, &session) == 1); + + /** Signature aggregation and verification */ + CHECK(secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 2) == 1); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, NULL, &session, partial_sig_ptr, 2)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, NULL, partial_sig_ptr, 2)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &invalid_session, partial_sig_ptr, 2)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, NULL, 2)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, invalid_partial_sig_ptr, 2)); + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 0)); + CHECK(secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 1) == 1); + CHECK(secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 2) == 1); +} + +static void musig_nonce_bitflip(unsigned char **args, size_t n_flip, size_t n_bytes) { + secp256k1_scalar k1[2], k2[2]; + + secp256k1_nonce_function_musig(k1, args[0], args[1], args[2], args[3], args[4], args[5]); + testrand_flip(args[n_flip], n_bytes); + secp256k1_nonce_function_musig(k2, args[0], args[1], args[2], args[3], args[4], args[5]); + CHECK(secp256k1_scalar_eq(&k1[0], &k2[0]) == 0); + CHECK(secp256k1_scalar_eq(&k1[1], &k2[1]) == 0); +} + +static void musig_nonce_test(void) { + unsigned char *args[6]; + unsigned char session_secrand[32]; + unsigned char sk[32]; + unsigned char pk[33]; + unsigned char msg[32]; + unsigned char agg_pk[32]; + unsigned char extra_input[32]; + int i, j; + secp256k1_scalar k[6][2]; + + testrand_bytes_test(session_secrand, sizeof(session_secrand)); + testrand_bytes_test(sk, sizeof(sk)); + testrand_bytes_test(pk, sizeof(pk)); + testrand_bytes_test(msg, sizeof(msg)); + testrand_bytes_test(agg_pk, sizeof(agg_pk)); + testrand_bytes_test(extra_input, sizeof(extra_input)); + + /* Check that a bitflip in an argument results in different nonces. */ + args[0] = session_secrand; + args[1] = msg; + args[2] = sk; + args[3] = pk; + args[4] = agg_pk; + args[5] = extra_input; + for (i = 0; i < COUNT; i++) { + musig_nonce_bitflip(args, 0, sizeof(session_secrand)); + musig_nonce_bitflip(args, 1, sizeof(msg)); + musig_nonce_bitflip(args, 2, sizeof(sk)); + musig_nonce_bitflip(args, 3, sizeof(pk)); + musig_nonce_bitflip(args, 4, sizeof(agg_pk)); + musig_nonce_bitflip(args, 5, sizeof(extra_input)); + } + /* Check that if any argument is NULL, a different nonce is produced than if + * any other argument is NULL. */ + memcpy(msg, session_secrand, sizeof(msg)); + memcpy(sk, session_secrand, sizeof(sk)); + memcpy(pk, session_secrand, sizeof(session_secrand)); + memcpy(agg_pk, session_secrand, sizeof(agg_pk)); + memcpy(extra_input, session_secrand, sizeof(extra_input)); + secp256k1_nonce_function_musig(k[0], args[0], args[1], args[2], args[3], args[4], args[5]); + secp256k1_nonce_function_musig(k[1], args[0], NULL, args[2], args[3], args[4], args[5]); + secp256k1_nonce_function_musig(k[2], args[0], args[1], NULL, args[3], args[4], args[5]); + secp256k1_nonce_function_musig(k[3], args[0], args[1], args[2], NULL, args[4], args[5]); + secp256k1_nonce_function_musig(k[4], args[0], args[1], args[2], args[3], NULL, args[5]); + secp256k1_nonce_function_musig(k[5], args[0], args[1], args[2], args[3], args[4], NULL); + for (i = 0; i < 6; i++) { + CHECK(!secp256k1_scalar_eq(&k[i][0], &k[i][1])); + for (j = i+1; j < 6; j++) { + CHECK(!secp256k1_scalar_eq(&k[i][0], &k[j][0])); + CHECK(!secp256k1_scalar_eq(&k[i][1], &k[j][1])); + } + } +} + +static void sha256_tag_test_internal(secp256k1_sha256 *sha_tagged, unsigned char *tag, size_t taglen) { + secp256k1_sha256 sha; + secp256k1_sha256_initialize_tagged(&sha, tag, taglen); + test_sha256_eq(&sha, sha_tagged); +} + +/* Checks that the initialized tagged hashes have the expected + * state. */ +static void sha256_tag_test(void) { + secp256k1_sha256 sha; + { + char tag[] = "KeyAgg list"; + secp256k1_musig_keyagglist_sha256(&sha); + sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + } + { + char tag[] = "KeyAgg coefficient"; + secp256k1_musig_keyaggcoef_sha256(&sha); + sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + } + { + unsigned char tag[] = "MuSig/aux"; + secp256k1_nonce_function_musig_sha256_tagged_aux(&sha); + sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + } + { + unsigned char tag[] = "MuSig/nonce"; + secp256k1_nonce_function_musig_sha256_tagged(&sha); + sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + } + { + unsigned char tag[] = "MuSig/noncecoef"; + secp256k1_musig_compute_noncehash_sha256_tagged(&sha); + sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + } +} + +/* Attempts to create a signature for the aggregate public key using given secret + * keys and keyagg_cache. */ +static void musig_tweak_test_helper(const secp256k1_xonly_pubkey* agg_pk, const unsigned char *sk0, const unsigned char *sk1, secp256k1_musig_keyagg_cache *keyagg_cache) { + secp256k1_pubkey pk[2]; + unsigned char session_secrand[2][32]; + unsigned char msg[32]; + secp256k1_musig_secnonce secnonce[2]; + secp256k1_musig_pubnonce pubnonce[2]; + const secp256k1_musig_pubnonce *pubnonce_ptr[2]; + secp256k1_musig_aggnonce aggnonce; + secp256k1_keypair keypair[2]; + secp256k1_musig_session session; + secp256k1_musig_partial_sig partial_sig[2]; + const secp256k1_musig_partial_sig *partial_sig_ptr[2]; + unsigned char final_sig[64]; + int i; + + for (i = 0; i < 2; i++) { + pubnonce_ptr[i] = &pubnonce[i]; + partial_sig_ptr[i] = &partial_sig[i]; + + testrand256(session_secrand[i]); + } + CHECK(create_keypair_and_pk(&keypair[0], &pk[0], sk0) == 1); + CHECK(create_keypair_and_pk(&keypair[1], &pk[1], sk1) == 1); + testrand256(msg); + + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk0, &pk[0], NULL, NULL, NULL) == 1); + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[1], &pubnonce[1], session_secrand[1], sk1, &pk[1], NULL, NULL, NULL) == 1); + + CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1); + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, keyagg_cache) == 1); + + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce[0], &keypair[0], keyagg_cache, &session) == 1); + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[1], &secnonce[1], &keypair[1], keyagg_cache, &session) == 1); + + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], keyagg_cache, &session) == 1); + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[1], &pubnonce[1], &pk[1], keyagg_cache, &session) == 1); + + CHECK(secp256k1_musig_partial_sig_agg(CTX, final_sig, &session, partial_sig_ptr, 2) == 1); + CHECK(secp256k1_schnorrsig_verify(CTX, final_sig, msg, sizeof(msg), agg_pk) == 1); +} + +/* Create aggregate public key P[0], tweak multiple times (using xonly and + * plain tweaking) and test signing. */ +static void musig_tweak_test(void) { + unsigned char sk[2][32]; + secp256k1_pubkey pk[2]; + const secp256k1_pubkey *pk_ptr[2]; + secp256k1_musig_keyagg_cache keyagg_cache; + enum { N_TWEAKS = 8 }; + secp256k1_pubkey P[N_TWEAKS + 1]; + secp256k1_xonly_pubkey P_xonly[N_TWEAKS + 1]; + int i; + + /* Key Setup */ + for (i = 0; i < 2; i++) { + pk_ptr[i] = &pk[i]; + testrand256(sk[i]); + CHECK(create_keypair_and_pk(NULL, &pk[i], sk[i]) == 1); + } + /* Compute P0 = keyagg(pk0, pk1) and test signing for it */ + CHECK(secp256k1_musig_pubkey_agg(CTX, &P_xonly[0], &keyagg_cache, pk_ptr, 2) == 1); + musig_tweak_test_helper(&P_xonly[0], sk[0], sk[1], &keyagg_cache); + CHECK(secp256k1_musig_pubkey_get(CTX, &P[0], &keyagg_cache)); + + /* Compute Pi = f(Pj) + tweaki*G where where j = i-1 and try signing for + * that key. If xonly is set to true, the function f normalizes the input + * point to have an even X-coordinate ("xonly-tweaking"). + * Otherwise, the function f is the identity function. */ + for (i = 1; i <= N_TWEAKS; i++) { + unsigned char tweak[32]; + int P_parity; + int xonly = testrand_bits(1); + + testrand256(tweak); + if (xonly) { + CHECK(secp256k1_musig_pubkey_xonly_tweak_add(CTX, &P[i], &keyagg_cache, tweak) == 1); + } else { + CHECK(secp256k1_musig_pubkey_ec_tweak_add(CTX, &P[i], &keyagg_cache, tweak) == 1); + } + CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &P_xonly[i], &P_parity, &P[i])); + /* Check that musig_pubkey_tweak_add produces same result as + * xonly_pubkey_tweak_add or ec_pubkey_tweak_add. */ + if (xonly) { + unsigned char P_serialized[32]; + CHECK(secp256k1_xonly_pubkey_serialize(CTX, P_serialized, &P_xonly[i])); + CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, P_serialized, P_parity, &P_xonly[i-1], tweak) == 1); + } else { + secp256k1_pubkey tmp_key = P[i-1]; + CHECK(secp256k1_ec_pubkey_tweak_add(CTX, &tmp_key, tweak)); + CHECK(secp256k1_memcmp_var(&tmp_key, &P[i], sizeof(tmp_key)) == 0); + } + /* Test signing for P[i] */ + musig_tweak_test_helper(&P_xonly[i], sk[0], sk[1], &keyagg_cache); + } +} + +int musig_vectors_keyagg_and_tweak(enum MUSIG_ERROR *error, + secp256k1_musig_keyagg_cache *keyagg_cache, + unsigned char *agg_pk_ser, + const unsigned char pubkeys33[][33], + const unsigned char tweaks32[][32], + size_t key_indices_len, + const size_t *key_indices, + size_t tweak_indices_len, + const size_t *tweak_indices, + const int *is_xonly) { + secp256k1_pubkey pubkeys[MUSIG_VECTORS_MAX_PUBKEYS]; + const secp256k1_pubkey *pk_ptr[MUSIG_VECTORS_MAX_PUBKEYS]; + int i; + secp256k1_pubkey agg_pk; + secp256k1_xonly_pubkey agg_pk_xonly; + + for (i = 0; i < (int)key_indices_len; i++) { + if (!secp256k1_ec_pubkey_parse(CTX, &pubkeys[i], pubkeys33[key_indices[i]], 33)) { + *error = MUSIG_PUBKEY; + return 0; + } + pk_ptr[i] = &pubkeys[i]; + } + if (!secp256k1_musig_pubkey_agg(CTX, NULL, keyagg_cache, pk_ptr, key_indices_len)) { + *error = MUSIG_OTHER; + return 0; + } + + for (i = 0; i < (int)tweak_indices_len; i++) { + if (is_xonly[i]) { + if (!secp256k1_musig_pubkey_xonly_tweak_add(CTX, NULL, keyagg_cache, tweaks32[tweak_indices[i]])) { + *error = MUSIG_TWEAK; + return 0; + } + } else { + if (!secp256k1_musig_pubkey_ec_tweak_add(CTX, NULL, keyagg_cache, tweaks32[tweak_indices[i]])) { + *error = MUSIG_TWEAK; + return 0; + } + } + } + if (!secp256k1_musig_pubkey_get(CTX, &agg_pk, keyagg_cache)) { + *error = MUSIG_OTHER; + return 0; + } + + if (!secp256k1_xonly_pubkey_from_pubkey(CTX, &agg_pk_xonly, NULL, &agg_pk)) { + *error = MUSIG_OTHER; + return 0; + } + + if (agg_pk_ser != NULL) { + if (!secp256k1_xonly_pubkey_serialize(CTX, agg_pk_ser, &agg_pk_xonly)) { + *error = MUSIG_OTHER; + return 0; + } + } + + return 1; +} + +static void musig_test_vectors_keyagg(void) { + size_t i; + const struct musig_key_agg_vector *vector = &musig_key_agg_vector; + + for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) { + const struct musig_key_agg_valid_test_case *c = &vector->valid_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + unsigned char agg_pk[32]; + + CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, agg_pk, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, 0, NULL, NULL)); + CHECK(secp256k1_memcmp_var(agg_pk, c->expected, sizeof(agg_pk)) == 0); + } + + for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) { + const struct musig_key_agg_error_test_case *c = &vector->error_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + + CHECK(!musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly)); + CHECK(c->error == error); + } +} + +static void musig_test_vectors_noncegen(void) { + size_t i; + const struct musig_nonce_gen_vector *vector = &musig_nonce_gen_vector; + + for (i = 0; i < sizeof(vector->test_case)/sizeof(vector->test_case[0]); i++) { + const struct musig_nonce_gen_test_case *c = &vector->test_case[i]; + secp256k1_musig_keyagg_cache keyagg_cache; + secp256k1_musig_keyagg_cache *keyagg_cache_ptr = NULL; + unsigned char session_secrand32[32]; + secp256k1_musig_secnonce secnonce; + secp256k1_musig_pubnonce pubnonce; + const unsigned char *sk = NULL; + const unsigned char *msg = NULL; + const unsigned char *extra_in = NULL; + secp256k1_pubkey pk; + unsigned char pubnonce66[66]; + + memcpy(session_secrand32, c->rand_, 32); + if (c->has_sk) { + sk = c->sk; + } + if (c->has_aggpk) { + /* Create keyagg_cache from aggpk */ + secp256k1_keyagg_cache_internal cache_i; + secp256k1_xonly_pubkey aggpk; + memset(&cache_i, 0, sizeof(cache_i)); + CHECK(secp256k1_xonly_pubkey_parse(CTX, &aggpk, c->aggpk)); + CHECK(secp256k1_xonly_pubkey_load(CTX, &cache_i.pk, &aggpk)); + secp256k1_keyagg_cache_save(&keyagg_cache, &cache_i); + keyagg_cache_ptr = &keyagg_cache; + } + if (c->has_msg) { + msg = c->msg; + } + if (c->has_extra_in) { + extra_in = c->extra_in; + } + + CHECK(secp256k1_ec_pubkey_parse(CTX, &pk, c->pk, sizeof(c->pk))); + CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce, &pubnonce, session_secrand32, sk, &pk, msg, keyagg_cache_ptr, extra_in) == 1); + CHECK(secp256k1_memcmp_var(&secnonce.data[4], c->expected_secnonce, 2*32) == 0); + /* The last element of the secnonce is the public key (uncompressed in + * secp256k1_musig_secnonce, compressed in the test vector secnonce). */ + CHECK(secp256k1_memcmp_var(&secnonce.data[4+2*32], &pk, sizeof(pk)) == 0); + CHECK(secp256k1_memcmp_var(&c->expected_secnonce[2*32], c->pk, sizeof(c->pk)) == 0); + + CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce66, &pubnonce) == 1); + CHECK(sizeof(c->expected_pubnonce) == sizeof(pubnonce66)); + CHECK(secp256k1_memcmp_var(pubnonce66, c->expected_pubnonce, sizeof(pubnonce66)) == 0); + } +} + + +static void musig_test_vectors_nonceagg(void) { + size_t i; + int j; + const struct musig_nonce_agg_vector *vector = &musig_nonce_agg_vector; + + for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) { + const struct musig_nonce_agg_test_case *c = &vector->valid_case[i]; + secp256k1_musig_pubnonce pubnonce[2]; + const secp256k1_musig_pubnonce *pubnonce_ptr[2]; + secp256k1_musig_aggnonce aggnonce; + unsigned char aggnonce66[66]; + + for (j = 0; j < 2; j++) { + CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[j], vector->pnonces[c->pnonce_indices[j]]) == 1); + pubnonce_ptr[j] = &pubnonce[j]; + } + CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2)); + CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce66, &aggnonce)); + CHECK(secp256k1_memcmp_var(aggnonce66, c->expected, 33) == 0); + } + for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) { + const struct musig_nonce_agg_test_case *c = &vector->error_case[i]; + secp256k1_musig_pubnonce pubnonce[2]; + for (j = 0; j < 2; j++) { + int expected = c->invalid_nonce_idx != j; + CHECK(expected == secp256k1_musig_pubnonce_parse(CTX, &pubnonce[j], vector->pnonces[c->pnonce_indices[j]])); + } + } +} + +static void musig_test_set_secnonce(secp256k1_musig_secnonce *secnonce, const unsigned char *secnonce64, const secp256k1_pubkey *pubkey) { + secp256k1_ge pk; + secp256k1_scalar k[2]; + + secp256k1_scalar_set_b32(&k[0], &secnonce64[0], NULL); + secp256k1_scalar_set_b32(&k[1], &secnonce64[32], NULL); + CHECK(secp256k1_pubkey_load(CTX, &pk, pubkey)); + secp256k1_musig_secnonce_save(secnonce, k, &pk); +} + +static void musig_test_vectors_signverify(void) { + size_t i; + const struct musig_sign_verify_vector *vector = &musig_sign_verify_vector; + + for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) { + const struct musig_valid_case *c = &vector->valid_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + secp256k1_pubkey pubkey; + secp256k1_musig_pubnonce pubnonce; + secp256k1_musig_aggnonce aggnonce; + secp256k1_musig_session session; + secp256k1_musig_partial_sig partial_sig; + secp256k1_musig_secnonce secnonce; + secp256k1_keypair keypair; + unsigned char partial_sig32[32]; + + CHECK(secp256k1_keypair_create(CTX, &keypair, vector->sk)); + CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL)); + + CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonces[c->aggnonce_index])); + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache)); + + CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0]))); + musig_test_set_secnonce(&secnonce, vector->secnonces[0], &pubkey); + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); + CHECK(secp256k1_musig_partial_sig_serialize(CTX, partial_sig32, &partial_sig)); + CHECK(secp256k1_memcmp_var(partial_sig32, c->expected, sizeof(partial_sig32)) == 0); + + CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce, vector->pubnonces[0])); + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig, &pubnonce, &pubkey, &keyagg_cache, &session)); + } + for (i = 0; i < sizeof(vector->sign_error_case)/sizeof(vector->sign_error_case[0]); i++) { + const struct musig_sign_error_case *c = &vector->sign_error_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + secp256k1_pubkey pubkey; + secp256k1_musig_aggnonce aggnonce; + secp256k1_musig_session session; + secp256k1_musig_partial_sig partial_sig; + secp256k1_musig_secnonce secnonce; + secp256k1_keypair keypair; + int expected; + + if (i == 0) { + /* Skip this vector since the implementation does not error out when + * the signing key does not belong to any pubkey. */ + continue; + } + expected = c->error != MUSIG_PUBKEY; + CHECK(expected == musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL)); + CHECK(expected || c->error == error); + if (!expected) { + continue; + } + + expected = c->error != MUSIG_AGGNONCE; + CHECK(expected == secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonces[c->aggnonce_index])); + if (!expected) { + continue; + } + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache)); + + CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0]))); + musig_test_set_secnonce(&secnonce, vector->secnonces[c->secnonce_index], &pubkey); + expected = c->error != MUSIG_SECNONCE; + if (expected) { + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); + } else { + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); + } + } + for (i = 0; i < sizeof(vector->verify_fail_case)/sizeof(vector->verify_fail_case[0]); i++) { + const struct musig_verify_fail_error_case *c = &vector->verify_fail_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + secp256k1_musig_aggnonce aggnonce; + secp256k1_musig_session session; + secp256k1_musig_partial_sig partial_sig; + enum { NUM_PUBNONCES = 3 }; + secp256k1_musig_pubnonce pubnonce[NUM_PUBNONCES]; + const secp256k1_musig_pubnonce *pubnonce_ptr[NUM_PUBNONCES]; + secp256k1_pubkey pubkey; + int expected; + size_t j; + + CHECK(NUM_PUBNONCES <= c->nonce_indices_len); + for (j = 0; j < c->nonce_indices_len; j++) { + CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[j], vector->pubnonces[c->nonce_indices[j]])); + pubnonce_ptr[j] = &pubnonce[j]; + } + + CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL)); + CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, c->nonce_indices_len) == 1); + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache)); + + CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[c->signer_index], sizeof(vector->pubkeys[0]))); + + expected = c->error != MUSIG_SIG; + CHECK(expected == secp256k1_musig_partial_sig_parse(CTX, &partial_sig, c->sig)); + if (!expected) { + continue; + } + expected = c->error != MUSIG_SIG_VERIFY; + CHECK(expected == secp256k1_musig_partial_sig_verify(CTX, &partial_sig, pubnonce, &pubkey, &keyagg_cache, &session)); + } + for (i = 0; i < sizeof(vector->verify_error_case)/sizeof(vector->verify_error_case[0]); i++) { + const struct musig_verify_fail_error_case *c = &vector->verify_error_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + secp256k1_musig_pubnonce pubnonce; + int expected; + + expected = c->error != MUSIG_PUBKEY; + CHECK(expected == musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL)); + CHECK(expected || c->error == error); + if (!expected) { + continue; + } + expected = c->error != MUSIG_PUBNONCE; + CHECK(expected == secp256k1_musig_pubnonce_parse(CTX, &pubnonce, vector->pubnonces[c->nonce_indices[c->signer_index]])); + } +} + +static void musig_test_vectors_tweak(void) { + size_t i; + const struct musig_tweak_vector *vector = &musig_tweak_vector; + secp256k1_pubkey pubkey; + secp256k1_musig_aggnonce aggnonce; + secp256k1_musig_secnonce secnonce; + + CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonce)); + CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0]))); + + for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) { + const struct musig_tweak_case *c = &vector->valid_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + secp256k1_musig_pubnonce pubnonce; + secp256k1_musig_session session; + secp256k1_musig_partial_sig partial_sig; + secp256k1_keypair keypair; + unsigned char partial_sig32[32]; + + musig_test_set_secnonce(&secnonce, vector->secnonce, &pubkey); + + CHECK(secp256k1_keypair_create(CTX, &keypair, vector->sk)); + CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly)); + + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msg, &keyagg_cache)); + + CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); + CHECK(secp256k1_musig_partial_sig_serialize(CTX, partial_sig32, &partial_sig)); + CHECK(secp256k1_memcmp_var(partial_sig32, c->expected, sizeof(partial_sig32)) == 0); + + CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce, vector->pubnonces[c->nonce_indices[c->signer_index]])); + CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig, &pubnonce, &pubkey, &keyagg_cache, &session)); + } + for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) { + const struct musig_tweak_case *c = &vector->error_case[i]; + enum MUSIG_ERROR error; + secp256k1_musig_keyagg_cache keyagg_cache; + CHECK(!musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly)); + CHECK(error == MUSIG_TWEAK); + } +} + +static void musig_test_vectors_sigagg(void) { + size_t i, j; + const struct musig_sig_agg_vector *vector = &musig_sig_agg_vector; + + for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) { + const struct musig_sig_agg_case *c = &vector->valid_case[i]; + enum MUSIG_ERROR error; + unsigned char final_sig[64]; + secp256k1_musig_keyagg_cache keyagg_cache; + unsigned char agg_pk32[32]; + secp256k1_xonly_pubkey agg_pk; + secp256k1_musig_aggnonce aggnonce; + secp256k1_musig_session session; + secp256k1_musig_partial_sig partial_sig[(sizeof(vector->psigs)/sizeof(vector->psigs[0]))]; + const secp256k1_musig_partial_sig *partial_sig_ptr[(sizeof(vector->psigs)/sizeof(vector->psigs[0]))]; + + CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, agg_pk32, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly)); + CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, c->aggnonce)); + CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msg, &keyagg_cache)); + for (j = 0; j < c->psig_indices_len; j++) { + CHECK(secp256k1_musig_partial_sig_parse(CTX, &partial_sig[j], vector->psigs[c->psig_indices[j]])); + partial_sig_ptr[j] = &partial_sig[j]; + } + + CHECK(secp256k1_musig_partial_sig_agg(CTX, final_sig, &session, partial_sig_ptr, c->psig_indices_len) == 1); + CHECK(secp256k1_memcmp_var(final_sig, c->expected, sizeof(final_sig)) == 0); + + CHECK(secp256k1_xonly_pubkey_parse(CTX, &agg_pk, agg_pk32)); + CHECK(secp256k1_schnorrsig_verify(CTX, final_sig, vector->msg, sizeof(vector->msg), &agg_pk) == 1); + } + for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) { + const struct musig_sig_agg_case *c = &vector->error_case[i]; + secp256k1_musig_partial_sig partial_sig[(sizeof(vector->psigs)/sizeof(vector->psigs[0]))]; + for (j = 0; j < c->psig_indices_len; j++) { + int expected = c->invalid_sig_idx != (int)j; + CHECK(expected == secp256k1_musig_partial_sig_parse(CTX, &partial_sig[j], vector->psigs[c->psig_indices[j]])); + } + } +} + +/* Since the BIP doesn't provide static test vectors for nonce_gen_counter, we + * define a static test here */ +static void musig_test_static_nonce_gen_counter(void) { + secp256k1_musig_secnonce secnonce; + secp256k1_musig_pubnonce pubnonce; + unsigned char pubnonce66[66]; + secp256k1_pubkey pk; + secp256k1_keypair keypair; + uint64_t nonrepeating_cnt = 0; + unsigned char sk[32] = { + 0xEE, 0xC1, 0xCB, 0x7D, 0x1B, 0x72, 0x54, 0xC5, + 0xCA, 0xB0, 0xD9, 0xC6, 0x1A, 0xB0, 0x2E, 0x64, + 0x3D, 0x46, 0x4A, 0x59, 0xFE, 0x6C, 0x96, 0xA7, + 0xEF, 0xE8, 0x71, 0xF0, 0x7C, 0x5A, 0xEF, 0x54, + }; + unsigned char expected_secnonce[64] = { + 0x84, 0x2F, 0x13, 0x80, 0xCD, 0x17, 0xA1, 0x98, + 0xFC, 0x3D, 0xAD, 0x3B, 0x7D, 0xA7, 0x49, 0x29, + 0x41, 0xF4, 0x69, 0x76, 0xF2, 0x70, 0x2F, 0xF7, + 0xC6, 0x6F, 0x24, 0xF4, 0x72, 0x03, 0x6A, 0xF1, + 0xDA, 0x3F, 0x95, 0x2D, 0xDE, 0x4A, 0x2D, 0xA6, + 0xB6, 0x32, 0x57, 0x07, 0xCE, 0x87, 0xA4, 0xE3, + 0x61, 0x6D, 0x06, 0xFC, 0x5F, 0x81, 0xA9, 0xC9, + 0x93, 0x86, 0xD2, 0x0A, 0x99, 0xCE, 0xCF, 0x99, + }; + unsigned char expected_pubnonce[66] = { + 0x03, 0xA5, 0xB9, 0xB6, 0x90, 0x79, 0x42, 0xEA, + 0xCD, 0xDA, 0x49, 0xA3, 0x66, 0x01, 0x6E, 0xC2, + 0xE6, 0x24, 0x04, 0xA1, 0xBF, 0x4A, 0xB6, 0xD4, + 0xDB, 0x82, 0x06, 0x7B, 0xC3, 0xAD, 0xF0, 0x86, + 0xD7, 0x03, 0x32, 0x05, 0xDB, 0x9E, 0xB3, 0x4D, + 0x5C, 0x7C, 0xE0, 0x28, 0x48, 0xCA, 0xC6, 0x8A, + 0x83, 0xED, 0x73, 0xE3, 0x88, 0x34, 0x77, 0xF5, + 0x63, 0xF2, 0x3C, 0xE9, 0xA1, 0x1A, 0x77, 0x21, + 0xEC, 0x64, + }; + + CHECK(secp256k1_keypair_create(CTX, &keypair, sk)); + CHECK(secp256k1_keypair_pub(CTX, &pk, &keypair)); + CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce, &pubnonce, nonrepeating_cnt, &keypair, NULL, NULL, NULL) == 1); + + CHECK(secp256k1_memcmp_var(&secnonce.data[4], expected_secnonce, 2*32) == 0); + CHECK(secp256k1_memcmp_var(&secnonce.data[4+2*32], &pk, sizeof(pk)) == 0); + + CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce66, &pubnonce) == 1); + CHECK(secp256k1_memcmp_var(pubnonce66, expected_pubnonce, sizeof(pubnonce66)) == 0); +} + +static void run_musig_tests(void) { + int i; + + for (i = 0; i < COUNT; i++) { + musig_simple_test(); + } + musig_api_tests(); + musig_nonce_test(); + for (i = 0; i < COUNT; i++) { + /* Run multiple times to ensure that pk and nonce have different y + * parities */ + musig_tweak_test(); + } + sha256_tag_test(); + musig_test_vectors_keyagg(); + musig_test_vectors_noncegen(); + musig_test_vectors_nonceagg(); + musig_test_vectors_signverify(); + musig_test_vectors_tweak(); + musig_test_vectors_sigagg(); + + musig_test_static_nonce_gen_counter(); +} + +#endif diff --git a/src/modules/musig/vectors.h b/src/modules/musig/vectors.h new file mode 100644 index 0000000000..8407c2a69a --- /dev/null +++ b/src/modules/musig/vectors.h @@ -0,0 +1,346 @@ +/** + * Automatically generated by ./tools/test_vectors_musig2_generate.py. + * + * The test vectors for the KeySort function are included in this file. They can + * be found in src/modules/extrakeys/tests_impl.h. */ + +enum MUSIG_ERROR { + MUSIG_PUBKEY, + MUSIG_TWEAK, + MUSIG_PUBNONCE, + MUSIG_AGGNONCE, + MUSIG_SECNONCE, + MUSIG_SIG, + MUSIG_SIG_VERIFY, + MUSIG_OTHER +}; + +struct musig_key_agg_valid_test_case { + size_t key_indices_len; + size_t key_indices[4]; + unsigned char expected[32]; +}; + +struct musig_key_agg_error_test_case { + size_t key_indices_len; + size_t key_indices[4]; + size_t tweak_indices_len; + size_t tweak_indices[1]; + int is_xonly[1]; + enum MUSIG_ERROR error; +}; + +struct musig_key_agg_vector { + unsigned char pubkeys[7][33]; + unsigned char tweaks[2][32]; + struct musig_key_agg_valid_test_case valid_case[4]; + struct musig_key_agg_error_test_case error_case[5]; +}; + +static const struct musig_key_agg_vector musig_key_agg_vector = { + { + { 0x02, 0xF9, 0x30, 0x8A, 0x01, 0x92, 0x58, 0xC3, 0x10, 0x49, 0x34, 0x4F, 0x85, 0xF8, 0x9D, 0x52, 0x29, 0xB5, 0x31, 0xC8, 0x45, 0x83, 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }, + { 0x03, 0xDF, 0xF1, 0xD7, 0x7F, 0x2A, 0x67, 0x1C, 0x5F, 0x36, 0x18, 0x37, 0x26, 0xDB, 0x23, 0x41, 0xBE, 0x58, 0xFE, 0xAE, 0x1D, 0xA2, 0xDE, 0xCE, 0xD8, 0x43, 0x24, 0x0F, 0x7B, 0x50, 0x2B, 0xA6, 0x59 }, + { 0x02, 0x35, 0x90, 0xA9, 0x4E, 0x76, 0x8F, 0x8E, 0x18, 0x15, 0xC2, 0xF2, 0x4B, 0x4D, 0x80, 0xA8, 0xE3, 0x14, 0x93, 0x16, 0xC3, 0x51, 0x8C, 0xE7, 0xB7, 0xAD, 0x33, 0x83, 0x68, 0xD0, 0x38, 0xCA, 0x66 }, + { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05 }, + { 0x02, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFC, 0x30 }, + { 0x04, 0xF9, 0x30, 0x8A, 0x01, 0x92, 0x58, 0xC3, 0x10, 0x49, 0x34, 0x4F, 0x85, 0xF8, 0x9D, 0x52, 0x29, 0xB5, 0x31, 0xC8, 0x45, 0x83, 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }, + { 0x03, 0x93, 0x5F, 0x97, 0x2D, 0xA0, 0x13, 0xF8, 0x0A, 0xE0, 0x11, 0x89, 0x0F, 0xA8, 0x9B, 0x67, 0xA2, 0x7B, 0x7B, 0xE6, 0xCC, 0xB2, 0x4D, 0x32, 0x74, 0xD1, 0x8B, 0x2D, 0x40, 0x67, 0xF2, 0x61, 0xA9 } + }, + { + { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xBA, 0xAE, 0xDC, 0xE6, 0xAF, 0x48, 0xA0, 0x3B, 0xBF, 0xD2, 0x5E, 0x8C, 0xD0, 0x36, 0x41, 0x41 }, + { 0x25, 0x2E, 0x4B, 0xD6, 0x74, 0x10, 0xA7, 0x6C, 0xDF, 0x93, 0x3D, 0x30, 0xEA, 0xA1, 0x60, 0x82, 0x14, 0x03, 0x7F, 0x1B, 0x10, 0x5A, 0x01, 0x3E, 0xCC, 0xD3, 0xC5, 0xC1, 0x84, 0xA6, 0x11, 0x0B } + }, + { + { 3, { 0, 1, 2 }, { 0x90, 0x53, 0x9E, 0xED, 0xE5, 0x65, 0xF5, 0xD0, 0x54, 0xF3, 0x2C, 0xC0, 0xC2, 0x20, 0x12, 0x68, 0x89, 0xED, 0x1E, 0x5D, 0x19, 0x3B, 0xAF, 0x15, 0xAE, 0xF3, 0x44, 0xFE, 0x59, 0xD4, 0x61, 0x0C }}, + { 3, { 2, 1, 0 }, { 0x62, 0x04, 0xDE, 0x8B, 0x08, 0x34, 0x26, 0xDC, 0x6E, 0xAF, 0x95, 0x02, 0xD2, 0x70, 0x24, 0xD5, 0x3F, 0xC8, 0x26, 0xBF, 0x7D, 0x20, 0x12, 0x14, 0x8A, 0x05, 0x75, 0x43, 0x5D, 0xF5, 0x4B, 0x2B }}, + { 3, { 0, 0, 0 }, { 0xB4, 0x36, 0xE3, 0xBA, 0xD6, 0x2B, 0x8C, 0xD4, 0x09, 0x96, 0x9A, 0x22, 0x47, 0x31, 0xC1, 0x93, 0xD0, 0x51, 0x16, 0x2D, 0x8C, 0x5A, 0xE8, 0xB1, 0x09, 0x30, 0x61, 0x27, 0xDA, 0x3A, 0xA9, 0x35 }}, + { 4, { 0, 0, 1, 1 }, { 0x69, 0xBC, 0x22, 0xBF, 0xA5, 0xD1, 0x06, 0x30, 0x6E, 0x48, 0xA2, 0x06, 0x79, 0xDE, 0x1D, 0x73, 0x89, 0x38, 0x61, 0x24, 0xD0, 0x75, 0x71, 0xD0, 0xD8, 0x72, 0x68, 0x60, 0x28, 0xC2, 0x6A, 0x3E }}, + }, + { + { 2, { 0, 3 }, 0, { 0 }, { 0 }, MUSIG_PUBKEY }, + { 2, { 0, 4 }, 0, { 0 }, { 0 }, MUSIG_PUBKEY }, + { 2, { 5, 0 }, 0, { 0 }, { 0 }, MUSIG_PUBKEY }, + { 2, { 0, 1 }, 1, { 0 }, { 1 }, MUSIG_TWEAK }, + { 1, { 6 }, 1, { 1 }, { 0 }, MUSIG_TWEAK }, + }, +}; + +struct musig_nonce_gen_test_case { + unsigned char rand_[32]; + int has_sk; + unsigned char sk[32]; + unsigned char pk[33]; + int has_aggpk; + unsigned char aggpk[32]; + int has_msg; + unsigned char msg[32]; + int has_extra_in; + unsigned char extra_in[32]; + unsigned char expected_secnonce[97]; + unsigned char expected_pubnonce[66]; +}; + +struct musig_nonce_gen_vector { + struct musig_nonce_gen_test_case test_case[2]; +}; + +static const struct musig_nonce_gen_vector musig_nonce_gen_vector = { + { + { { 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F }, 1 , { 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02 }, { 0x02, 0x4D, 0x4B, 0x6C, 0xD1, 0x36, 0x10, 0x32, 0xCA, 0x9B, 0xD2, 0xAE, 0xB9, 0xD9, 0x00, 0xAA, 0x4D, 0x45, 0xD9, 0xEA, 0xD8, 0x0A, 0xC9, 0x42, 0x33, 0x74, 0xC4, 0x51, 0xA7, 0x25, 0x4D, 0x07, 0x66 }, 1 , { 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07 }, 1 , { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 }, 1 , { 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, { 0xB1, 0x14, 0xE5, 0x02, 0xBE, 0xAA, 0x4E, 0x30, 0x1D, 0xD0, 0x8A, 0x50, 0x26, 0x41, 0x72, 0xC8, 0x4E, 0x41, 0x65, 0x0E, 0x6C, 0xB7, 0x26, 0xB4, 0x10, 0xC0, 0x69, 0x4D, 0x59, 0xEF, 0xFB, 0x64, 0x95, 0xB5, 0xCA, 0xF2, 0x8D, 0x04, 0x5B, 0x97, 0x3D, 0x63, 0xE3, 0xC9, 0x9A, 0x44, 0xB8, 0x07, 0xBD, 0xE3, 0x75, 0xFD, 0x6C, 0xB3, 0x9E, 0x46, 0xDC, 0x4A, 0x51, 0x17, 0x08, 0xD0, 0xE9, 0xD2, 0x02, 0x4D, 0x4B, 0x6C, 0xD1, 0x36, 0x10, 0x32, 0xCA, 0x9B, 0xD2, 0xAE, 0xB9, 0xD9, 0x00, 0xAA, 0x4D, 0x45, 0xD9, 0xEA, 0xD8, 0x0A, 0xC9, 0x42, 0x33, 0x74, 0xC4, 0x51, 0xA7, 0x25, 0x4D, 0x07, 0x66 }, { 0x02, 0xF7, 0xBE, 0x70, 0x89, 0xE8, 0x37, 0x6E, 0xB3, 0x55, 0x27, 0x23, 0x68, 0x76, 0x6B, 0x17, 0xE8, 0x8E, 0x7D, 0xB7, 0x20, 0x47, 0xD0, 0x5E, 0x56, 0xAA, 0x88, 0x1E, 0xA5, 0x2B, 0x3B, 0x35, 0xDF, 0x02, 0xC2, 0x9C, 0x80, 0x46, 0xFD, 0xD0, 0xDE, 0xD4, 0xC7, 0xE5, 0x58, 0x69, 0x13, 0x72, 0x00, 0xFB, 0xDB, 0xFE, 0x2E, 0xB6, 0x54, 0x26, 0x7B, 0x6D, 0x70, 0x13, 0x60, 0x2C, 0xAE, 0xD3, 0x11, 0x5A } }, + { { 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F }, 0 , { 0 }, { 0x02, 0xF9, 0x30, 0x8A, 0x01, 0x92, 0x58, 0xC3, 0x10, 0x49, 0x34, 0x4F, 0x85, 0xF8, 0x9D, 0x52, 0x29, 0xB5, 0x31, 0xC8, 0x45, 0x83, 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }, 0 , { 0 }, 0 , { 0 }, 0 , { 0 }, { 0x89, 0xBD, 0xD7, 0x87, 0xD0, 0x28, 0x4E, 0x5E, 0x4D, 0x5F, 0xC5, 0x72, 0xE4, 0x9E, 0x31, 0x6B, 0xAB, 0x7E, 0x21, 0xE3, 0xB1, 0x83, 0x0D, 0xE3, 0x7D, 0xFE, 0x80, 0x15, 0x6F, 0xA4, 0x1A, 0x6D, 0x0B, 0x17, 0xAE, 0x8D, 0x02, 0x4C, 0x53, 0x67, 0x96, 0x99, 0xA6, 0xFD, 0x79, 0x44, 0xD9, 0xC4, 0xA3, 0x66, 0xB5, 0x14, 0xBA, 0xF4, 0x30, 0x88, 0xE0, 0x70, 0x8B, 0x10, 0x23, 0xDD, 0x28, 0x97, 0x02, 0xF9, 0x30, 0x8A, 0x01, 0x92, 0x58, 0xC3, 0x10, 0x49, 0x34, 0x4F, 0x85, 0xF8, 0x9D, 0x52, 0x29, 0xB5, 0x31, 0xC8, 0x45, 0x83, 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }, { 0x02, 0xC9, 0x6E, 0x7C, 0xB1, 0xE8, 0xAA, 0x5D, 0xAC, 0x64, 0xD8, 0x72, 0x94, 0x79, 0x14, 0x19, 0x8F, 0x60, 0x7D, 0x90, 0xEC, 0xDE, 0x52, 0x00, 0xDE, 0x52, 0x97, 0x8A, 0xD5, 0xDE, 0xD6, 0x3C, 0x00, 0x02, 0x99, 0xEC, 0x51, 0x17, 0xC2, 0xD2, 0x9E, 0xDE, 0xE8, 0xA2, 0x09, 0x25, 0x87, 0xC3, 0x90, 0x9B, 0xE6, 0x94, 0xD5, 0xCF, 0xF0, 0x66, 0x7D, 0x6C, 0x02, 0xEA, 0x40, 0x59, 0xF7, 0xCD, 0x97, 0x86 } }, + }, +}; + +struct musig_nonce_agg_test_case { + size_t pnonce_indices[2]; + /* if valid case */ + unsigned char expected[66]; + /* if error case */ + int invalid_nonce_idx; +}; + +struct musig_nonce_agg_vector { + unsigned char pnonces[7][66]; + struct musig_nonce_agg_test_case valid_case[2]; + struct musig_nonce_agg_test_case error_case[3]; +}; + +static const struct musig_nonce_agg_vector musig_nonce_agg_vector = { + { + { 0x02, 0x01, 0x51, 0xC8, 0x0F, 0x43, 0x56, 0x48, 0xDF, 0x67, 0xA2, 0x2B, 0x74, 0x9C, 0xD7, 0x98, 0xCE, 0x54, 0xE0, 0x32, 0x1D, 0x03, 0x4B, 0x92, 0xB7, 0x09, 0xB5, 0x67, 0xD6, 0x0A, 0x42, 0xE6, 0x66, 0x03, 0xBA, 0x47, 0xFB, 0xC1, 0x83, 0x44, 0x37, 0xB3, 0x21, 0x2E, 0x89, 0xA8, 0x4D, 0x84, 0x25, 0xE7, 0xBF, 0x12, 0xE0, 0x24, 0x5D, 0x98, 0x26, 0x22, 0x68, 0xEB, 0xDC, 0xB3, 0x85, 0xD5, 0x06, 0x41 }, + { 0x03, 0xFF, 0x40, 0x6F, 0xFD, 0x8A, 0xDB, 0x9C, 0xD2, 0x98, 0x77, 0xE4, 0x98, 0x50, 0x14, 0xF6, 0x6A, 0x59, 0xF6, 0xCD, 0x01, 0xC0, 0xE8, 0x8C, 0xAA, 0x8E, 0x5F, 0x31, 0x66, 0xB1, 0xF6, 0x76, 0xA6, 0x02, 0x48, 0xC2, 0x64, 0xCD, 0xD5, 0x7D, 0x3C, 0x24, 0xD7, 0x99, 0x90, 0xB0, 0xF8, 0x65, 0x67, 0x4E, 0xB6, 0x2A, 0x0F, 0x90, 0x18, 0x27, 0x7A, 0x95, 0x01, 0x1B, 0x41, 0xBF, 0xC1, 0x93, 0xB8, 0x33 }, + { 0x02, 0x01, 0x51, 0xC8, 0x0F, 0x43, 0x56, 0x48, 0xDF, 0x67, 0xA2, 0x2B, 0x74, 0x9C, 0xD7, 0x98, 0xCE, 0x54, 0xE0, 0x32, 0x1D, 0x03, 0x4B, 0x92, 0xB7, 0x09, 0xB5, 0x67, 0xD6, 0x0A, 0x42, 0xE6, 0x66, 0x02, 0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC, 0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07, 0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9, 0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98 }, + { 0x03, 0xFF, 0x40, 0x6F, 0xFD, 0x8A, 0xDB, 0x9C, 0xD2, 0x98, 0x77, 0xE4, 0x98, 0x50, 0x14, 0xF6, 0x6A, 0x59, 0xF6, 0xCD, 0x01, 0xC0, 0xE8, 0x8C, 0xAA, 0x8E, 0x5F, 0x31, 0x66, 0xB1, 0xF6, 0x76, 0xA6, 0x03, 0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC, 0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07, 0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9, 0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98 }, + { 0x04, 0xFF, 0x40, 0x6F, 0xFD, 0x8A, 0xDB, 0x9C, 0xD2, 0x98, 0x77, 0xE4, 0x98, 0x50, 0x14, 0xF6, 0x6A, 0x59, 0xF6, 0xCD, 0x01, 0xC0, 0xE8, 0x8C, 0xAA, 0x8E, 0x5F, 0x31, 0x66, 0xB1, 0xF6, 0x76, 0xA6, 0x02, 0x48, 0xC2, 0x64, 0xCD, 0xD5, 0x7D, 0x3C, 0x24, 0xD7, 0x99, 0x90, 0xB0, 0xF8, 0x65, 0x67, 0x4E, 0xB6, 0x2A, 0x0F, 0x90, 0x18, 0x27, 0x7A, 0x95, 0x01, 0x1B, 0x41, 0xBF, 0xC1, 0x93, 0xB8, 0x33 }, + { 0x03, 0xFF, 0x40, 0x6F, 0xFD, 0x8A, 0xDB, 0x9C, 0xD2, 0x98, 0x77, 0xE4, 0x98, 0x50, 0x14, 0xF6, 0x6A, 0x59, 0xF6, 0xCD, 0x01, 0xC0, 0xE8, 0x8C, 0xAA, 0x8E, 0x5F, 0x31, 0x66, 0xB1, 0xF6, 0x76, 0xA6, 0x02, 0x48, 0xC2, 0x64, 0xCD, 0xD5, 0x7D, 0x3C, 0x24, 0xD7, 0x99, 0x90, 0xB0, 0xF8, 0x65, 0x67, 0x4E, 0xB6, 0x2A, 0x0F, 0x90, 0x18, 0x27, 0x7A, 0x95, 0x01, 0x1B, 0x41, 0xBF, 0xC1, 0x93, 0xB8, 0x31 }, + { 0x03, 0xFF, 0x40, 0x6F, 0xFD, 0x8A, 0xDB, 0x9C, 0xD2, 0x98, 0x77, 0xE4, 0x98, 0x50, 0x14, 0xF6, 0x6A, 0x59, 0xF6, 0xCD, 0x01, 0xC0, 0xE8, 0x8C, 0xAA, 0x8E, 0x5F, 0x31, 0x66, 0xB1, 0xF6, 0x76, 0xA6, 0x02, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFC, 0x30 } + }, + { + { { 0, 1 }, { 0x03, 0x5F, 0xE1, 0x87, 0x3B, 0x4F, 0x29, 0x67, 0xF5, 0x2F, 0xEA, 0x4A, 0x06, 0xAD, 0x5A, 0x8E, 0xCC, 0xBE, 0x9D, 0x0F, 0xD7, 0x30, 0x68, 0x01, 0x2C, 0x89, 0x4E, 0x2E, 0x87, 0xCC, 0xB5, 0x80, 0x4B, 0x02, 0x47, 0x25, 0x37, 0x73, 0x45, 0xBD, 0xE0, 0xE9, 0xC3, 0x3A, 0xF3, 0xC4, 0x3C, 0x0A, 0x29, 0xA9, 0x24, 0x9F, 0x2F, 0x29, 0x56, 0xFA, 0x8C, 0xFE, 0xB5, 0x5C, 0x85, 0x73, 0xD0, 0x26, 0x2D, 0xC8 }, 0 }, + { { 2, 3 }, { 0x03, 0x5F, 0xE1, 0x87, 0x3B, 0x4F, 0x29, 0x67, 0xF5, 0x2F, 0xEA, 0x4A, 0x06, 0xAD, 0x5A, 0x8E, 0xCC, 0xBE, 0x9D, 0x0F, 0xD7, 0x30, 0x68, 0x01, 0x2C, 0x89, 0x4E, 0x2E, 0x87, 0xCC, 0xB5, 0x80, 0x4B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 0 }, + }, + { + { { 0, 4 }, { 0 }, 1 }, + { { 5, 1 }, { 0 }, 0 }, + { { 6, 1 }, { 0 }, 0 }, + }, +}; + +/* Omit pubnonces in the test vectors because our partial signature verification + * implementation is able to accept the aggnonce directly. */ +struct musig_valid_case { + size_t key_indices_len; + size_t key_indices[3]; + size_t aggnonce_index; + size_t msg_index; + size_t signer_index; + unsigned char expected[32]; +}; + +struct musig_sign_error_case { + size_t key_indices_len; + size_t key_indices[3]; + size_t aggnonce_index; + size_t msg_index; + size_t secnonce_index; + enum MUSIG_ERROR error; +}; + +struct musig_verify_fail_error_case { + unsigned char sig[32]; + size_t key_indices_len; + size_t key_indices[3]; + size_t nonce_indices_len; + size_t nonce_indices[3]; + size_t msg_index; + size_t signer_index; + enum MUSIG_ERROR error; +}; + +struct musig_sign_verify_vector { + unsigned char sk[32]; + unsigned char pubkeys[4][33]; + unsigned char secnonces[2][194]; + unsigned char pubnonces[5][194]; + unsigned char aggnonces[5][66]; + unsigned char msgs[1][32]; + struct musig_valid_case valid_case[4]; + struct musig_sign_error_case sign_error_case[6]; + struct musig_verify_fail_error_case verify_fail_case[3]; + struct musig_verify_fail_error_case verify_error_case[2]; +}; + +static const struct musig_sign_verify_vector musig_sign_verify_vector = { + { 0x7F, 0xB9, 0xE0, 0xE6, 0x87, 0xAD, 0xA1, 0xEE, 0xBF, 0x7E, 0xCF, 0xE2, 0xF2, 0x1E, 0x73, 0xEB, 0xDB, 0x51, 0xA7, 0xD4, 0x50, 0x94, 0x8D, 0xFE, 0x8D, 0x76, 0xD7, 0xF2, 0xD1, 0x00, 0x76, 0x71 }, + { + { 0x03, 0x93, 0x5F, 0x97, 0x2D, 0xA0, 0x13, 0xF8, 0x0A, 0xE0, 0x11, 0x89, 0x0F, 0xA8, 0x9B, 0x67, 0xA2, 0x7B, 0x7B, 0xE6, 0xCC, 0xB2, 0x4D, 0x32, 0x74, 0xD1, 0x8B, 0x2D, 0x40, 0x67, 0xF2, 0x61, 0xA9 }, + { 0x02, 0xF9, 0x30, 0x8A, 0x01, 0x92, 0x58, 0xC3, 0x10, 0x49, 0x34, 0x4F, 0x85, 0xF8, 0x9D, 0x52, 0x29, 0xB5, 0x31, 0xC8, 0x45, 0x83, 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }, + { 0x02, 0xDF, 0xF1, 0xD7, 0x7F, 0x2A, 0x67, 0x1C, 0x5F, 0x36, 0x18, 0x37, 0x26, 0xDB, 0x23, 0x41, 0xBE, 0x58, 0xFE, 0xAE, 0x1D, 0xA2, 0xDE, 0xCE, 0xD8, 0x43, 0x24, 0x0F, 0x7B, 0x50, 0x2B, 0xA6, 0x61 }, + { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07 } + }, + { + { 0x50, 0x8B, 0x81, 0xA6, 0x11, 0xF1, 0x00, 0xA6, 0xB2, 0xB6, 0xB2, 0x96, 0x56, 0x59, 0x08, 0x98, 0xAF, 0x48, 0x8B, 0xCF, 0x2E, 0x1F, 0x55, 0xCF, 0x22, 0xE5, 0xCF, 0xB8, 0x44, 0x21, 0xFE, 0x61, 0xFA, 0x27, 0xFD, 0x49, 0xB1, 0xD5, 0x00, 0x85, 0xB4, 0x81, 0x28, 0x5E, 0x1C, 0xA2, 0x05, 0xD5, 0x5C, 0x82, 0xCC, 0x1B, 0x31, 0xFF, 0x5C, 0xD5, 0x4A, 0x48, 0x98, 0x29, 0x35, 0x59, 0x01, 0xF7, 0x03, 0x93, 0x5F, 0x97, 0x2D, 0xA0, 0x13, 0xF8, 0x0A, 0xE0, 0x11, 0x89, 0x0F, 0xA8, 0x9B, 0x67, 0xA2, 0x7B, 0x7B, 0xE6, 0xCC, 0xB2, 0x4D, 0x32, 0x74, 0xD1, 0x8B, 0x2D, 0x40, 0x67, 0xF2, 0x61, 0xA9 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x93, 0x5F, 0x97, 0x2D, 0xA0, 0x13, 0xF8, 0x0A, 0xE0, 0x11, 0x89, 0x0F, 0xA8, 0x9B, 0x67, 0xA2, 0x7B, 0x7B, 0xE6, 0xCC, 0xB2, 0x4D, 0x32, 0x74, 0xD1, 0x8B, 0x2D, 0x40, 0x67, 0xF2, 0x61, 0xA9 } + }, + { + { 0x03, 0x37, 0xC8, 0x78, 0x21, 0xAF, 0xD5, 0x0A, 0x86, 0x44, 0xD8, 0x20, 0xA8, 0xF3, 0xE0, 0x2E, 0x49, 0x9C, 0x93, 0x18, 0x65, 0xC2, 0x36, 0x0F, 0xB4, 0x3D, 0x0A, 0x0D, 0x20, 0xDA, 0xFE, 0x07, 0xEA, 0x02, 0x87, 0xBF, 0x89, 0x1D, 0x2A, 0x6D, 0xEA, 0xEB, 0xAD, 0xC9, 0x09, 0x35, 0x2A, 0xA9, 0x40, 0x5D, 0x14, 0x28, 0xC1, 0x5F, 0x4B, 0x75, 0xF0, 0x4D, 0xAE, 0x64, 0x2A, 0x95, 0xC2, 0x54, 0x84, 0x80 }, + { 0x02, 0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC, 0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07, 0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9, 0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98, 0x02, 0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC, 0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07, 0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9, 0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98 }, + { 0x03, 0x2D, 0xE2, 0x66, 0x26, 0x28, 0xC9, 0x0B, 0x03, 0xF5, 0xE7, 0x20, 0x28, 0x4E, 0xB5, 0x2F, 0xF7, 0xD7, 0x1F, 0x42, 0x84, 0xF6, 0x27, 0xB6, 0x8A, 0x85, 0x3D, 0x78, 0xC7, 0x8E, 0x1F, 0xFE, 0x93, 0x03, 0xE4, 0xC5, 0x52, 0x4E, 0x83, 0xFF, 0xE1, 0x49, 0x3B, 0x90, 0x77, 0xCF, 0x1C, 0xA6, 0xBE, 0xB2, 0x09, 0x0C, 0x93, 0xD9, 0x30, 0x32, 0x10, 0x71, 0xAD, 0x40, 0xB2, 0xF4, 0x4E, 0x59, 0x90, 0x46 }, + { 0x02, 0x37, 0xC8, 0x78, 0x21, 0xAF, 0xD5, 0x0A, 0x86, 0x44, 0xD8, 0x20, 0xA8, 0xF3, 0xE0, 0x2E, 0x49, 0x9C, 0x93, 0x18, 0x65, 0xC2, 0x36, 0x0F, 0xB4, 0x3D, 0x0A, 0x0D, 0x20, 0xDA, 0xFE, 0x07, 0xEA, 0x03, 0x87, 0xBF, 0x89, 0x1D, 0x2A, 0x6D, 0xEA, 0xEB, 0xAD, 0xC9, 0x09, 0x35, 0x2A, 0xA9, 0x40, 0x5D, 0x14, 0x28, 0xC1, 0x5F, 0x4B, 0x75, 0xF0, 0x4D, 0xAE, 0x64, 0x2A, 0x95, 0xC2, 0x54, 0x84, 0x80 }, + { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x02, 0x87, 0xBF, 0x89, 0x1D, 0x2A, 0x6D, 0xEA, 0xEB, 0xAD, 0xC9, 0x09, 0x35, 0x2A, 0xA9, 0x40, 0x5D, 0x14, 0x28, 0xC1, 0x5F, 0x4B, 0x75, 0xF0, 0x4D, 0xAE, 0x64, 0x2A, 0x95, 0xC2, 0x54, 0x84, 0x80 } + }, + { + { 0x02, 0x84, 0x65, 0xFC, 0xF0, 0xBB, 0xDB, 0xCF, 0x44, 0x3A, 0xAB, 0xCC, 0xE5, 0x33, 0xD4, 0x2B, 0x4B, 0x5A, 0x10, 0x96, 0x6A, 0xC0, 0x9A, 0x49, 0x65, 0x5E, 0x8C, 0x42, 0xDA, 0xAB, 0x8F, 0xCD, 0x61, 0x03, 0x74, 0x96, 0xA3, 0xCC, 0x86, 0x92, 0x6D, 0x45, 0x2C, 0xAF, 0xCF, 0xD5, 0x5D, 0x25, 0x97, 0x2C, 0xA1, 0x67, 0x5D, 0x54, 0x93, 0x10, 0xDE, 0x29, 0x6B, 0xFF, 0x42, 0xF7, 0x2E, 0xEE, 0xA8, 0xC9 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x04, 0x84, 0x65, 0xFC, 0xF0, 0xBB, 0xDB, 0xCF, 0x44, 0x3A, 0xAB, 0xCC, 0xE5, 0x33, 0xD4, 0x2B, 0x4B, 0x5A, 0x10, 0x96, 0x6A, 0xC0, 0x9A, 0x49, 0x65, 0x5E, 0x8C, 0x42, 0xDA, 0xAB, 0x8F, 0xCD, 0x61, 0x03, 0x74, 0x96, 0xA3, 0xCC, 0x86, 0x92, 0x6D, 0x45, 0x2C, 0xAF, 0xCF, 0xD5, 0x5D, 0x25, 0x97, 0x2C, 0xA1, 0x67, 0x5D, 0x54, 0x93, 0x10, 0xDE, 0x29, 0x6B, 0xFF, 0x42, 0xF7, 0x2E, 0xEE, 0xA8, 0xC9 }, + { 0x02, 0x84, 0x65, 0xFC, 0xF0, 0xBB, 0xDB, 0xCF, 0x44, 0x3A, 0xAB, 0xCC, 0xE5, 0x33, 0xD4, 0x2B, 0x4B, 0x5A, 0x10, 0x96, 0x6A, 0xC0, 0x9A, 0x49, 0x65, 0x5E, 0x8C, 0x42, 0xDA, 0xAB, 0x8F, 0xCD, 0x61, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09 }, + { 0x02, 0x84, 0x65, 0xFC, 0xF0, 0xBB, 0xDB, 0xCF, 0x44, 0x3A, 0xAB, 0xCC, 0xE5, 0x33, 0xD4, 0x2B, 0x4B, 0x5A, 0x10, 0x96, 0x6A, 0xC0, 0x9A, 0x49, 0x65, 0x5E, 0x8C, 0x42, 0xDA, 0xAB, 0x8F, 0xCD, 0x61, 0x02, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFC, 0x30 } + }, + { + { 0xF9, 0x54, 0x66, 0xD0, 0x86, 0x77, 0x0E, 0x68, 0x99, 0x64, 0x66, 0x42, 0x19, 0x26, 0x6F, 0xE5, 0xED, 0x21, 0x5C, 0x92, 0xAE, 0x20, 0xBA, 0xB5, 0xC9, 0xD7, 0x9A, 0xDD, 0xDD, 0xF3, 0xC0, 0xCF } + }, + { + { 3, { 0, 1, 2 }, 0, 0, 0, { 0x01, 0x2A, 0xBB, 0xCB, 0x52, 0xB3, 0x01, 0x6A, 0xC0, 0x3A, 0xD8, 0x23, 0x95, 0xA1, 0xA4, 0x15, 0xC4, 0x8B, 0x93, 0xDE, 0xF7, 0x87, 0x18, 0xE6, 0x2A, 0x7A, 0x90, 0x05, 0x2F, 0xE2, 0x24, 0xFB }}, + { 3, { 1, 0, 2 }, 0, 0, 1, { 0x9F, 0xF2, 0xF7, 0xAA, 0xA8, 0x56, 0x15, 0x0C, 0xC8, 0x81, 0x92, 0x54, 0x21, 0x8D, 0x3A, 0xDE, 0xEB, 0x05, 0x35, 0x26, 0x90, 0x51, 0x89, 0x77, 0x24, 0xF9, 0xDB, 0x37, 0x89, 0x51, 0x3A, 0x52 }}, + { 3, { 1, 2, 0 }, 0, 0, 2, { 0xFA, 0x23, 0xC3, 0x59, 0xF6, 0xFA, 0xC4, 0xE7, 0x79, 0x6B, 0xB9, 0x3B, 0xC9, 0xF0, 0x53, 0x2A, 0x95, 0x46, 0x8C, 0x53, 0x9B, 0xA2, 0x0F, 0xF8, 0x6D, 0x7C, 0x76, 0xED, 0x92, 0x22, 0x79, 0x00 }}, + { 2, { 0, 1 }, 1, 0, 0, { 0xAE, 0x38, 0x60, 0x64, 0xB2, 0x61, 0x05, 0x40, 0x47, 0x98, 0xF7, 0x5D, 0xE2, 0xEB, 0x9A, 0xF5, 0xED, 0xA5, 0x38, 0x7B, 0x06, 0x4B, 0x83, 0xD0, 0x49, 0xCB, 0x7C, 0x5E, 0x08, 0x87, 0x95, 0x31 }}, + }, + { + { 2, { 1, 2 }, 0, 0, 0, MUSIG_PUBKEY }, + { 3, { 1, 0, 3 }, 0, 0, 0, MUSIG_PUBKEY }, + { 3, { 1, 2, 0 }, 2, 0, 0, MUSIG_AGGNONCE }, + { 3, { 1, 2, 0 }, 3, 0, 0, MUSIG_AGGNONCE }, + { 3, { 1, 2, 0 }, 4, 0, 0, MUSIG_AGGNONCE }, + { 3, { 0, 1, 2 }, 0, 0, 1, MUSIG_SECNONCE }, + }, + { + { { 0xFE, 0xD5, 0x44, 0x34, 0xAD, 0x4C, 0xFE, 0x95, 0x3F, 0xC5, 0x27, 0xDC, 0x6A, 0x5E, 0x5B, 0xE8, 0xF6, 0x23, 0x49, 0x07, 0xB7, 0xC1, 0x87, 0x55, 0x95, 0x57, 0xCE, 0x87, 0xA0, 0x54, 0x1C, 0x46 }, 3, { 0, 1, 2 }, 3, { 0, 1, 2 }, 0, 0, MUSIG_SIG_VERIFY }, + { { 0x01, 0x2A, 0xBB, 0xCB, 0x52, 0xB3, 0x01, 0x6A, 0xC0, 0x3A, 0xD8, 0x23, 0x95, 0xA1, 0xA4, 0x15, 0xC4, 0x8B, 0x93, 0xDE, 0xF7, 0x87, 0x18, 0xE6, 0x2A, 0x7A, 0x90, 0x05, 0x2F, 0xE2, 0x24, 0xFB }, 3, { 0, 1, 2 }, 3, { 0, 1, 2 }, 0, 1, MUSIG_SIG_VERIFY }, + { { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xBA, 0xAE, 0xDC, 0xE6, 0xAF, 0x48, 0xA0, 0x3B, 0xBF, 0xD2, 0x5E, 0x8C, 0xD0, 0x36, 0x41, 0x41 }, 3, { 0, 1, 2 }, 3, { 0, 1, 2 }, 0, 0, MUSIG_SIG }, + }, + { + { { 0x01, 0x2A, 0xBB, 0xCB, 0x52, 0xB3, 0x01, 0x6A, 0xC0, 0x3A, 0xD8, 0x23, 0x95, 0xA1, 0xA4, 0x15, 0xC4, 0x8B, 0x93, 0xDE, 0xF7, 0x87, 0x18, 0xE6, 0x2A, 0x7A, 0x90, 0x05, 0x2F, 0xE2, 0x24, 0xFB }, 3, { 0, 1, 2 }, 3, { 4, 1, 2 }, 0, 0, MUSIG_PUBNONCE }, + { { 0x01, 0x2A, 0xBB, 0xCB, 0x52, 0xB3, 0x01, 0x6A, 0xC0, 0x3A, 0xD8, 0x23, 0x95, 0xA1, 0xA4, 0x15, 0xC4, 0x8B, 0x93, 0xDE, 0xF7, 0x87, 0x18, 0xE6, 0x2A, 0x7A, 0x90, 0x05, 0x2F, 0xE2, 0x24, 0xFB }, 3, { 3, 1, 2 }, 3, { 0, 1, 2 }, 0, 0, MUSIG_PUBKEY }, + }, +}; + +struct musig_tweak_case { + size_t key_indices_len; + size_t key_indices[3]; + size_t nonce_indices_len; + size_t nonce_indices[3]; + size_t tweak_indices_len; + size_t tweak_indices[4]; + int is_xonly[4]; + size_t signer_index; + unsigned char expected[32]; +}; + +struct musig_tweak_vector { + unsigned char sk[32]; + unsigned char secnonce[97]; + unsigned char aggnonce[66]; + unsigned char msg[32]; + unsigned char pubkeys[3][33]; + unsigned char pubnonces[3][194]; + unsigned char tweaks[5][32]; + struct musig_tweak_case valid_case[5]; + struct musig_tweak_case error_case[1]; +}; + +static const struct musig_tweak_vector musig_tweak_vector = { + { 0x7F, 0xB9, 0xE0, 0xE6, 0x87, 0xAD, 0xA1, 0xEE, 0xBF, 0x7E, 0xCF, 0xE2, 0xF2, 0x1E, 0x73, 0xEB, 0xDB, 0x51, 0xA7, 0xD4, 0x50, 0x94, 0x8D, 0xFE, 0x8D, 0x76, 0xD7, 0xF2, 0xD1, 0x00, 0x76, 0x71 }, + { 0x50, 0x8B, 0x81, 0xA6, 0x11, 0xF1, 0x00, 0xA6, 0xB2, 0xB6, 0xB2, 0x96, 0x56, 0x59, 0x08, 0x98, 0xAF, 0x48, 0x8B, 0xCF, 0x2E, 0x1F, 0x55, 0xCF, 0x22, 0xE5, 0xCF, 0xB8, 0x44, 0x21, 0xFE, 0x61, 0xFA, 0x27, 0xFD, 0x49, 0xB1, 0xD5, 0x00, 0x85, 0xB4, 0x81, 0x28, 0x5E, 0x1C, 0xA2, 0x05, 0xD5, 0x5C, 0x82, 0xCC, 0x1B, 0x31, 0xFF, 0x5C, 0xD5, 0x4A, 0x48, 0x98, 0x29, 0x35, 0x59, 0x01, 0xF7, 0x03, 0x93, 0x5F, 0x97, 0x2D, 0xA0, 0x13, 0xF8, 0x0A, 0xE0, 0x11, 0x89, 0x0F, 0xA8, 0x9B, 0x67, 0xA2, 0x7B, 0x7B, 0xE6, 0xCC, 0xB2, 0x4D, 0x32, 0x74, 0xD1, 0x8B, 0x2D, 0x40, 0x67, 0xF2, 0x61, 0xA9 }, + { 0x02, 0x84, 0x65, 0xFC, 0xF0, 0xBB, 0xDB, 0xCF, 0x44, 0x3A, 0xAB, 0xCC, 0xE5, 0x33, 0xD4, 0x2B, 0x4B, 0x5A, 0x10, 0x96, 0x6A, 0xC0, 0x9A, 0x49, 0x65, 0x5E, 0x8C, 0x42, 0xDA, 0xAB, 0x8F, 0xCD, 0x61, 0x03, 0x74, 0x96, 0xA3, 0xCC, 0x86, 0x92, 0x6D, 0x45, 0x2C, 0xAF, 0xCF, 0xD5, 0x5D, 0x25, 0x97, 0x2C, 0xA1, 0x67, 0x5D, 0x54, 0x93, 0x10, 0xDE, 0x29, 0x6B, 0xFF, 0x42, 0xF7, 0x2E, 0xEE, 0xA8, 0xC9 }, + { 0xF9, 0x54, 0x66, 0xD0, 0x86, 0x77, 0x0E, 0x68, 0x99, 0x64, 0x66, 0x42, 0x19, 0x26, 0x6F, 0xE5, 0xED, 0x21, 0x5C, 0x92, 0xAE, 0x20, 0xBA, 0xB5, 0xC9, 0xD7, 0x9A, 0xDD, 0xDD, 0xF3, 0xC0, 0xCF }, + { + { 0x03, 0x93, 0x5F, 0x97, 0x2D, 0xA0, 0x13, 0xF8, 0x0A, 0xE0, 0x11, 0x89, 0x0F, 0xA8, 0x9B, 0x67, 0xA2, 0x7B, 0x7B, 0xE6, 0xCC, 0xB2, 0x4D, 0x32, 0x74, 0xD1, 0x8B, 0x2D, 0x40, 0x67, 0xF2, 0x61, 0xA9 }, + { 0x02, 0xF9, 0x30, 0x8A, 0x01, 0x92, 0x58, 0xC3, 0x10, 0x49, 0x34, 0x4F, 0x85, 0xF8, 0x9D, 0x52, 0x29, 0xB5, 0x31, 0xC8, 0x45, 0x83, 0x6F, 0x99, 0xB0, 0x86, 0x01, 0xF1, 0x13, 0xBC, 0xE0, 0x36, 0xF9 }, + { 0x02, 0xDF, 0xF1, 0xD7, 0x7F, 0x2A, 0x67, 0x1C, 0x5F, 0x36, 0x18, 0x37, 0x26, 0xDB, 0x23, 0x41, 0xBE, 0x58, 0xFE, 0xAE, 0x1D, 0xA2, 0xDE, 0xCE, 0xD8, 0x43, 0x24, 0x0F, 0x7B, 0x50, 0x2B, 0xA6, 0x59 } + }, + { + { 0x03, 0x37, 0xC8, 0x78, 0x21, 0xAF, 0xD5, 0x0A, 0x86, 0x44, 0xD8, 0x20, 0xA8, 0xF3, 0xE0, 0x2E, 0x49, 0x9C, 0x93, 0x18, 0x65, 0xC2, 0x36, 0x0F, 0xB4, 0x3D, 0x0A, 0x0D, 0x20, 0xDA, 0xFE, 0x07, 0xEA, 0x02, 0x87, 0xBF, 0x89, 0x1D, 0x2A, 0x6D, 0xEA, 0xEB, 0xAD, 0xC9, 0x09, 0x35, 0x2A, 0xA9, 0x40, 0x5D, 0x14, 0x28, 0xC1, 0x5F, 0x4B, 0x75, 0xF0, 0x4D, 0xAE, 0x64, 0x2A, 0x95, 0xC2, 0x54, 0x84, 0x80 }, + { 0x02, 0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC, 0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07, 0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9, 0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98, 0x02, 0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC, 0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07, 0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9, 0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98 }, + { 0x03, 0x2D, 0xE2, 0x66, 0x26, 0x28, 0xC9, 0x0B, 0x03, 0xF5, 0xE7, 0x20, 0x28, 0x4E, 0xB5, 0x2F, 0xF7, 0xD7, 0x1F, 0x42, 0x84, 0xF6, 0x27, 0xB6, 0x8A, 0x85, 0x3D, 0x78, 0xC7, 0x8E, 0x1F, 0xFE, 0x93, 0x03, 0xE4, 0xC5, 0x52, 0x4E, 0x83, 0xFF, 0xE1, 0x49, 0x3B, 0x90, 0x77, 0xCF, 0x1C, 0xA6, 0xBE, 0xB2, 0x09, 0x0C, 0x93, 0xD9, 0x30, 0x32, 0x10, 0x71, 0xAD, 0x40, 0xB2, 0xF4, 0x4E, 0x59, 0x90, 0x46 } + }, + { + { 0xE8, 0xF7, 0x91, 0xFF, 0x92, 0x25, 0xA2, 0xAF, 0x01, 0x02, 0xAF, 0xFF, 0x4A, 0x9A, 0x72, 0x3D, 0x96, 0x12, 0xA6, 0x82, 0xA2, 0x5E, 0xBE, 0x79, 0x80, 0x2B, 0x26, 0x3C, 0xDF, 0xCD, 0x83, 0xBB }, + { 0xAE, 0x2E, 0xA7, 0x97, 0xCC, 0x0F, 0xE7, 0x2A, 0xC5, 0xB9, 0x7B, 0x97, 0xF3, 0xC6, 0x95, 0x7D, 0x7E, 0x41, 0x99, 0xA1, 0x67, 0xA5, 0x8E, 0xB0, 0x8B, 0xCA, 0xFF, 0xDA, 0x70, 0xAC, 0x04, 0x55 }, + { 0xF5, 0x2E, 0xCB, 0xC5, 0x65, 0xB3, 0xD8, 0xBE, 0xA2, 0xDF, 0xD5, 0xB7, 0x5A, 0x4F, 0x45, 0x7E, 0x54, 0x36, 0x98, 0x09, 0x32, 0x2E, 0x41, 0x20, 0x83, 0x16, 0x26, 0xF2, 0x90, 0xFA, 0x87, 0xE0 }, + { 0x19, 0x69, 0xAD, 0x73, 0xCC, 0x17, 0x7F, 0xA0, 0xB4, 0xFC, 0xED, 0x6D, 0xF1, 0xF7, 0xBF, 0x99, 0x07, 0xE6, 0x65, 0xFD, 0xE9, 0xBA, 0x19, 0x6A, 0x74, 0xFE, 0xD0, 0xA3, 0xCF, 0x5A, 0xEF, 0x9D }, + { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xBA, 0xAE, 0xDC, 0xE6, 0xAF, 0x48, 0xA0, 0x3B, 0xBF, 0xD2, 0x5E, 0x8C, 0xD0, 0x36, 0x41, 0x41 } + }, + { + { 3, { 1, 2, 0 }, 3, { 1, 2, 0 }, 1, { 0 }, { 1 }, 2, { 0xE2, 0x8A, 0x5C, 0x66, 0xE6, 0x1E, 0x17, 0x8C, 0x2B, 0xA1, 0x9D, 0xB7, 0x7B, 0x6C, 0xF9, 0xF7, 0xE2, 0xF0, 0xF5, 0x6C, 0x17, 0x91, 0x8C, 0xD1, 0x31, 0x35, 0xE6, 0x0C, 0xC8, 0x48, 0xFE, 0x91 }}, + { 3, { 1, 2, 0 }, 3, { 1, 2, 0 }, 1, { 0 }, { 0 }, 2, { 0x38, 0xB0, 0x76, 0x77, 0x98, 0x25, 0x2F, 0x21, 0xBF, 0x57, 0x02, 0xC4, 0x80, 0x28, 0xB0, 0x95, 0x42, 0x83, 0x20, 0xF7, 0x3A, 0x4B, 0x14, 0xDB, 0x1E, 0x25, 0xDE, 0x58, 0x54, 0x3D, 0x2D, 0x2D }}, + { 3, { 1, 2, 0 }, 3, { 1, 2, 0 }, 2, { 0, 1 }, { 0, 1 }, 2, { 0x40, 0x8A, 0x0A, 0x21, 0xC4, 0xA0, 0xF5, 0xDA, 0xCA, 0xF9, 0x64, 0x6A, 0xD6, 0xEB, 0x6F, 0xEC, 0xD7, 0xF7, 0xA1, 0x1F, 0x03, 0xED, 0x1F, 0x48, 0xDF, 0xFF, 0x21, 0x85, 0xBC, 0x2C, 0x24, 0x08 }}, + { 3, { 1, 2, 0 }, 3, { 1, 2, 0 }, 4, { 0, 1, 2, 3 }, { 0, 0, 1, 1 }, 2, { 0x45, 0xAB, 0xD2, 0x06, 0xE6, 0x1E, 0x3D, 0xF2, 0xEC, 0x9E, 0x26, 0x4A, 0x6F, 0xEC, 0x82, 0x92, 0x14, 0x1A, 0x63, 0x3C, 0x28, 0x58, 0x63, 0x88, 0x23, 0x55, 0x41, 0xF9, 0xAD, 0xE7, 0x54, 0x35 }}, + { 3, { 1, 2, 0 }, 3, { 1, 2, 0 }, 4, { 0, 1, 2, 3 }, { 1, 0, 1, 0 }, 2, { 0xB2, 0x55, 0xFD, 0xCA, 0xC2, 0x7B, 0x40, 0xC7, 0xCE, 0x78, 0x48, 0xE2, 0xD3, 0xB7, 0xBF, 0x5E, 0xA0, 0xED, 0x75, 0x6D, 0xA8, 0x15, 0x65, 0xAC, 0x80, 0x4C, 0xCC, 0xA3, 0xE1, 0xD5, 0xD2, 0x39 }}, + }, + { + { 3, { 1, 2, 0 }, 3, { 1, 2, 0 }, 1, { 4 }, { 0 }, 2, { 0 }}, + }, +}; + +/* Omit pubnonces in the test vectors because they're only needed for + * implementations that do not directly accept an aggnonce. */ +struct musig_sig_agg_case { + size_t key_indices_len; + size_t key_indices[2]; + size_t tweak_indices_len; + size_t tweak_indices[3]; + int is_xonly[3]; + unsigned char aggnonce[66]; + size_t psig_indices_len; + size_t psig_indices[2]; + /* if valid case */ + unsigned char expected[64]; + /* if error case */ + int invalid_sig_idx; +}; + +struct musig_sig_agg_vector { + unsigned char pubkeys[4][33]; + unsigned char tweaks[3][32]; + unsigned char psigs[9][32]; + unsigned char msg[32]; + struct musig_sig_agg_case valid_case[4]; + struct musig_sig_agg_case error_case[1]; +}; + +static const struct musig_sig_agg_vector musig_sig_agg_vector = { + { + { 0x03, 0x93, 0x5F, 0x97, 0x2D, 0xA0, 0x13, 0xF8, 0x0A, 0xE0, 0x11, 0x89, 0x0F, 0xA8, 0x9B, 0x67, 0xA2, 0x7B, 0x7B, 0xE6, 0xCC, 0xB2, 0x4D, 0x32, 0x74, 0xD1, 0x8B, 0x2D, 0x40, 0x67, 0xF2, 0x61, 0xA9 }, + { 0x02, 0xD2, 0xDC, 0x6F, 0x5D, 0xF7, 0xC5, 0x6A, 0xCF, 0x38, 0xC7, 0xFA, 0x0A, 0xE7, 0xA7, 0x59, 0xAE, 0x30, 0xE1, 0x9B, 0x37, 0x35, 0x9D, 0xFD, 0xE0, 0x15, 0x87, 0x23, 0x24, 0xC7, 0xEF, 0x6E, 0x05 }, + { 0x03, 0xC7, 0xFB, 0x10, 0x1D, 0x97, 0xFF, 0x93, 0x0A, 0xCD, 0x0C, 0x67, 0x60, 0x85, 0x2E, 0xF6, 0x4E, 0x69, 0x08, 0x3D, 0xE0, 0xB0, 0x6A, 0xC6, 0x33, 0x57, 0x24, 0x75, 0x4B, 0xB4, 0xB0, 0x52, 0x2C }, + { 0x02, 0x35, 0x24, 0x33, 0xB2, 0x1E, 0x7E, 0x05, 0xD3, 0xB4, 0x52, 0xB8, 0x1C, 0xAE, 0x56, 0x6E, 0x06, 0xD2, 0xE0, 0x03, 0xEC, 0xE1, 0x6D, 0x10, 0x74, 0xAA, 0xBA, 0x42, 0x89, 0xE0, 0xE3, 0xD5, 0x81 } + }, + { + { 0xB5, 0x11, 0xDA, 0x49, 0x21, 0x82, 0xA9, 0x1B, 0x0F, 0xFB, 0x9A, 0x98, 0x02, 0x0D, 0x55, 0xF2, 0x60, 0xAE, 0x86, 0xD7, 0xEC, 0xBD, 0x03, 0x99, 0xC7, 0x38, 0x3D, 0x59, 0xA5, 0xF2, 0xAF, 0x7C }, + { 0xA8, 0x15, 0xFE, 0x04, 0x9E, 0xE3, 0xC5, 0xAA, 0xB6, 0x63, 0x10, 0x47, 0x7F, 0xBC, 0x8B, 0xCC, 0xCA, 0xC2, 0xF3, 0x39, 0x5F, 0x59, 0xF9, 0x21, 0xC3, 0x64, 0xAC, 0xD7, 0x8A, 0x2F, 0x48, 0xDC }, + { 0x75, 0x44, 0x8A, 0x87, 0x27, 0x4B, 0x05, 0x64, 0x68, 0xB9, 0x77, 0xBE, 0x06, 0xEB, 0x1E, 0x9F, 0x65, 0x75, 0x77, 0xB7, 0x32, 0x0B, 0x0A, 0x33, 0x76, 0xEA, 0x51, 0xFD, 0x42, 0x0D, 0x18, 0xA8 } + }, + { + { 0xB1, 0x5D, 0x2C, 0xD3, 0xC3, 0xD2, 0x2B, 0x04, 0xDA, 0xE4, 0x38, 0xCE, 0x65, 0x3F, 0x6B, 0x4E, 0xCF, 0x04, 0x2F, 0x42, 0xCF, 0xDE, 0xD7, 0xC4, 0x1B, 0x64, 0xAA, 0xF9, 0xB4, 0xAF, 0x53, 0xFB }, + { 0x61, 0x93, 0xD6, 0xAC, 0x61, 0xB3, 0x54, 0xE9, 0x10, 0x5B, 0xBD, 0xC8, 0x93, 0x7A, 0x34, 0x54, 0xA6, 0xD7, 0x05, 0xB6, 0xD5, 0x73, 0x22, 0xA5, 0xA4, 0x72, 0xA0, 0x2C, 0xE9, 0x9F, 0xCB, 0x64 }, + { 0x9A, 0x87, 0xD3, 0xB7, 0x9E, 0xC6, 0x72, 0x28, 0xCB, 0x97, 0x87, 0x8B, 0x76, 0x04, 0x9B, 0x15, 0xDB, 0xD0, 0x5B, 0x81, 0x58, 0xD1, 0x7B, 0x5B, 0x91, 0x14, 0xD3, 0xC2, 0x26, 0x88, 0x75, 0x05 }, + { 0x66, 0xF8, 0x2E, 0xA9, 0x09, 0x23, 0x68, 0x9B, 0x85, 0x5D, 0x36, 0xC6, 0xB7, 0xE0, 0x32, 0xFB, 0x99, 0x70, 0x30, 0x14, 0x81, 0xB9, 0x9E, 0x01, 0xCD, 0xB4, 0xD6, 0xAC, 0x7C, 0x34, 0x7A, 0x15 }, + { 0x4F, 0x5A, 0xEE, 0x41, 0x51, 0x08, 0x48, 0xA6, 0x44, 0x7D, 0xCD, 0x1B, 0xBC, 0x78, 0x45, 0x7E, 0xF6, 0x90, 0x24, 0x94, 0x4C, 0x87, 0xF4, 0x02, 0x50, 0xD3, 0xEF, 0x2C, 0x25, 0xD3, 0x3E, 0xFE }, + { 0xDD, 0xEF, 0x42, 0x7B, 0xBB, 0x84, 0x7C, 0xC0, 0x27, 0xBE, 0xFF, 0x4E, 0xDB, 0x01, 0x03, 0x81, 0x48, 0x91, 0x78, 0x32, 0x25, 0x3E, 0xBC, 0x35, 0x5F, 0xC3, 0x3F, 0x4A, 0x8E, 0x2F, 0xCC, 0xE4 }, + { 0x97, 0xB8, 0x90, 0xA2, 0x6C, 0x98, 0x1D, 0xA8, 0x10, 0x2D, 0x3B, 0xC2, 0x94, 0x15, 0x9D, 0x17, 0x1D, 0x72, 0x81, 0x0F, 0xDF, 0x7C, 0x6A, 0x69, 0x1D, 0xEF, 0x02, 0xF0, 0xF7, 0xAF, 0x3F, 0xDC }, + { 0x53, 0xFA, 0x9E, 0x08, 0xBA, 0x52, 0x43, 0xCB, 0xCB, 0x0D, 0x79, 0x7C, 0x5E, 0xE8, 0x3B, 0xC6, 0x72, 0x8E, 0x53, 0x9E, 0xB7, 0x6C, 0x2D, 0x0B, 0xF0, 0xF9, 0x71, 0xEE, 0x4E, 0x90, 0x99, 0x71 }, + { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xBA, 0xAE, 0xDC, 0xE6, 0xAF, 0x48, 0xA0, 0x3B, 0xBF, 0xD2, 0x5E, 0x8C, 0xD0, 0x36, 0x41, 0x41 } + }, + { 0x59, 0x9C, 0x67, 0xEA, 0x41, 0x0D, 0x00, 0x5B, 0x9D, 0xA9, 0x08, 0x17, 0xCF, 0x03, 0xED, 0x3B, 0x1C, 0x86, 0x8E, 0x4D, 0xA4, 0xED, 0xF0, 0x0A, 0x58, 0x80, 0xB0, 0x08, 0x2C, 0x23, 0x78, 0x69 }, + { + { 2, { 0, 1 }, 0, { 0 }, { 0 }, { 0x03, 0x41, 0x43, 0x27, 0x22, 0xC5, 0xCD, 0x02, 0x68, 0xD8, 0x29, 0xC7, 0x02, 0xCF, 0x0D, 0x1C, 0xBC, 0xE5, 0x70, 0x33, 0xEE, 0xD2, 0x01, 0xFD, 0x33, 0x51, 0x91, 0x38, 0x52, 0x27, 0xC3, 0x21, 0x0C, 0x03, 0xD3, 0x77, 0xF2, 0xD2, 0x58, 0xB6, 0x4A, 0xAD, 0xC0, 0xE1, 0x6F, 0x26, 0x46, 0x23, 0x23, 0xD7, 0x01, 0xD2, 0x86, 0x04, 0x6A, 0x2E, 0xA9, 0x33, 0x65, 0x65, 0x6A, 0xFD, 0x98, 0x75, 0x98, 0x2B }, 2, { 0, 1 }, { 0x04, 0x1D, 0xA2, 0x22, 0x23, 0xCE, 0x65, 0xC9, 0x2C, 0x9A, 0x0D, 0x6C, 0x2C, 0xAC, 0x82, 0x8A, 0xAF, 0x1E, 0xEE, 0x56, 0x30, 0x4F, 0xEC, 0x37, 0x1D, 0xDF, 0x91, 0xEB, 0xB2, 0xB9, 0xEF, 0x09, 0x12, 0xF1, 0x03, 0x80, 0x25, 0x85, 0x7F, 0xED, 0xEB, 0x3F, 0xF6, 0x96, 0xF8, 0xB9, 0x9F, 0xA4, 0xBB, 0x2C, 0x58, 0x12, 0xF6, 0x09, 0x5A, 0x2E, 0x00, 0x04, 0xEC, 0x99, 0xCE, 0x18, 0xDE, 0x1E }, 0 }, + { 2, { 0, 2 }, 0, { 0 }, { 0 }, { 0x02, 0x24, 0xAF, 0xD3, 0x6C, 0x90, 0x20, 0x84, 0x05, 0x8B, 0x51, 0xB5, 0xD3, 0x66, 0x76, 0xBB, 0xA4, 0xDC, 0x97, 0xC7, 0x75, 0x87, 0x37, 0x68, 0xE5, 0x88, 0x22, 0xF8, 0x7F, 0xE4, 0x37, 0xD7, 0x92, 0x02, 0x8C, 0xB1, 0x59, 0x29, 0x09, 0x9E, 0xEE, 0x2F, 0x5D, 0xAE, 0x40, 0x4C, 0xD3, 0x93, 0x57, 0x59, 0x1B, 0xA3, 0x2E, 0x9A, 0xF4, 0xE1, 0x62, 0xB8, 0xD3, 0xE7, 0xCB, 0x5E, 0xFE, 0x31, 0xCB, 0x20 }, 2, { 2, 3 }, { 0x10, 0x69, 0xB6, 0x7E, 0xC3, 0xD2, 0xF3, 0xC7, 0xC0, 0x82, 0x91, 0xAC, 0xCB, 0x17, 0xA9, 0xC9, 0xB8, 0xF2, 0x81, 0x9A, 0x52, 0xEB, 0x5D, 0xF8, 0x72, 0x6E, 0x17, 0xE7, 0xD6, 0xB5, 0x2E, 0x9F, 0x01, 0x80, 0x02, 0x60, 0xA7, 0xE9, 0xDA, 0xC4, 0x50, 0xF4, 0xBE, 0x52, 0x2D, 0xE4, 0xCE, 0x12, 0xBA, 0x91, 0xAE, 0xAF, 0x2B, 0x42, 0x79, 0x21, 0x9E, 0xF7, 0x4B, 0xE1, 0xD2, 0x86, 0xAD, 0xD9 }, 0 }, + { 2, { 0, 2 }, 1, { 0 }, { 0 }, { 0x02, 0x08, 0xC5, 0xC4, 0x38, 0xC7, 0x10, 0xF4, 0xF9, 0x6A, 0x61, 0xE9, 0xFF, 0x3C, 0x37, 0x75, 0x88, 0x14, 0xB8, 0xC3, 0xAE, 0x12, 0xBF, 0xEA, 0x0E, 0xD2, 0xC8, 0x7F, 0xF6, 0x95, 0x4F, 0xF1, 0x86, 0x02, 0x0B, 0x18, 0x16, 0xEA, 0x10, 0x4B, 0x4F, 0xCA, 0x2D, 0x30, 0x4D, 0x73, 0x3E, 0x0E, 0x19, 0xCE, 0xAD, 0x51, 0x30, 0x3F, 0xF6, 0x42, 0x0B, 0xFD, 0x22, 0x23, 0x35, 0xCA, 0xA4, 0x02, 0x91, 0x6D }, 2, { 4, 5 }, { 0x5C, 0x55, 0x8E, 0x1D, 0xCA, 0xDE, 0x86, 0xDA, 0x0B, 0x2F, 0x02, 0x62, 0x6A, 0x51, 0x2E, 0x30, 0xA2, 0x2C, 0xF5, 0x25, 0x5C, 0xAE, 0xA7, 0xEE, 0x32, 0xC3, 0x8E, 0x9A, 0x71, 0xA0, 0xE9, 0x14, 0x8B, 0xA6, 0xC0, 0xE6, 0xEC, 0x76, 0x83, 0xB6, 0x42, 0x20, 0xF0, 0x29, 0x86, 0x96, 0xF1, 0xB8, 0x78, 0xCD, 0x47, 0xB1, 0x07, 0xB8, 0x1F, 0x71, 0x88, 0x81, 0x2D, 0x59, 0x39, 0x71, 0xE0, 0xCC }, 0 }, + { 2, { 0, 3 }, 3, { 0, 1, 2 }, { 1, 0, 1 }, { 0x02, 0xB5, 0xAD, 0x07, 0xAF, 0xCD, 0x99, 0xB6, 0xD9, 0x2C, 0xB4, 0x33, 0xFB, 0xD2, 0xA2, 0x8F, 0xDE, 0xB9, 0x8E, 0xAE, 0x2E, 0xB0, 0x9B, 0x60, 0x14, 0xEF, 0x0F, 0x81, 0x97, 0xCD, 0x58, 0x40, 0x33, 0x02, 0xE8, 0x61, 0x69, 0x10, 0xF9, 0x29, 0x3C, 0xF6, 0x92, 0xC4, 0x9F, 0x35, 0x1D, 0xB8, 0x6B, 0x25, 0xE3, 0x52, 0x90, 0x1F, 0x0E, 0x23, 0x7B, 0xAF, 0xDA, 0x11, 0xF1, 0xC1, 0xCE, 0xF2, 0x9F, 0xFD }, 2, { 6, 7 }, { 0x83, 0x9B, 0x08, 0x82, 0x0B, 0x68, 0x1D, 0xBA, 0x8D, 0xAF, 0x4C, 0xC7, 0xB1, 0x04, 0xE8, 0xF2, 0x63, 0x8F, 0x93, 0x88, 0xF8, 0xD7, 0xA5, 0x55, 0xDC, 0x17, 0xB6, 0xE6, 0x97, 0x1D, 0x74, 0x26, 0xCE, 0x07, 0xBF, 0x6A, 0xB0, 0x1F, 0x1D, 0xB5, 0x0E, 0x4E, 0x33, 0x71, 0x92, 0x95, 0xF4, 0x09, 0x45, 0x72, 0xB7, 0x98, 0x68, 0xE4, 0x40, 0xFB, 0x3D, 0xEF, 0xD3, 0xFA, 0xC1, 0xDB, 0x58, 0x9E }, 0 }, + }, + { + { 2, { 0, 3 }, 3, { 0, 1, 2 }, { 1, 0, 1 }, { 0x02, 0xB5, 0xAD, 0x07, 0xAF, 0xCD, 0x99, 0xB6, 0xD9, 0x2C, 0xB4, 0x33, 0xFB, 0xD2, 0xA2, 0x8F, 0xDE, 0xB9, 0x8E, 0xAE, 0x2E, 0xB0, 0x9B, 0x60, 0x14, 0xEF, 0x0F, 0x81, 0x97, 0xCD, 0x58, 0x40, 0x33, 0x02, 0xE8, 0x61, 0x69, 0x10, 0xF9, 0x29, 0x3C, 0xF6, 0x92, 0xC4, 0x9F, 0x35, 0x1D, 0xB8, 0x6B, 0x25, 0xE3, 0x52, 0x90, 0x1F, 0x0E, 0x23, 0x7B, 0xAF, 0xDA, 0x11, 0xF1, 0xC1, 0xCE, 0xF2, 0x9F, 0xFD }, 2, { 7, 8 }, { 0 }, 1 }, + }, +}; +enum { MUSIG_VECTORS_MAX_PUBKEYS = 7 }; diff --git a/src/secp256k1.c b/src/secp256k1.c index 8821718a7d..a8c249ad25 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -818,6 +818,10 @@ int secp256k1_tagged_sha256(const secp256k1_context* ctx, unsigned char *hash32, # include "modules/schnorrsig/main_impl.h" #endif +#ifdef ENABLE_MODULE_MUSIG +# include "modules/musig/main_impl.h" +#endif + #ifdef ENABLE_MODULE_ELLSWIFT # include "modules/ellswift/main_impl.h" #endif diff --git a/src/tests.c b/src/tests.c index 544ad7633f..dba4097b1a 100644 --- a/src/tests.c +++ b/src/tests.c @@ -7448,6 +7448,10 @@ static void run_ecdsa_wycheproof(void) { # include "modules/schnorrsig/tests_impl.h" #endif +#ifdef ENABLE_MODULE_MUSIG +# include "modules/musig/tests_impl.h" +#endif + #ifdef ENABLE_MODULE_ELLSWIFT # include "modules/ellswift/tests_impl.h" #endif @@ -7812,6 +7816,10 @@ int main(int argc, char **argv) { run_schnorrsig_tests(); #endif +#ifdef ENABLE_MODULE_MUSIG + run_musig_tests(); +#endif + #ifdef ENABLE_MODULE_ELLSWIFT run_ellswift_tests(); #endif diff --git a/tools/test_vectors_musig2_generate.py b/tools/test_vectors_musig2_generate.py new file mode 100755 index 0000000000..97424419f3 --- /dev/null +++ b/tools/test_vectors_musig2_generate.py @@ -0,0 +1,656 @@ +#!/usr/bin/env python3 + +import sys +import json +import textwrap + +max_pubkeys = 0 + +if len(sys.argv) < 2: + print( + "This script converts BIP MuSig2 test vectors in a given directory to a C file that can be used in the test framework." + ) + print("Usage: %s " % sys.argv[0]) + sys.exit(1) + + +def hexstr_to_intarray(str): + return ", ".join([f"0x{b:02X}" for b in bytes.fromhex(str)]) + + +def create_init(name): + return """ +static const struct musig_%s_vector musig_%s_vector = { +""" % ( + name, + name, + ) + + +def init_array(key): + return textwrap.indent("{ %s },\n" % hexstr_to_intarray(data[key]), 4 * " ") + + +def init_arrays(key): + s = textwrap.indent("{\n", 4 * " ") + s += textwrap.indent( + ",\n".join(["{ %s }" % hexstr_to_intarray(x) for x in data[key]]), 8 * " " + ) + s += textwrap.indent("\n},\n", 4 * " ") + return s + + +def init_indices(array): + return " %d, { %s }" % ( + len(array), + ", ".join(map(str, array) if len(array) > 0 else "0"), + ) + + +def init_is_xonly(case): + if len(case["tweak_indices"]) > 0: + return ", ".join(map(lambda x: "1" if x else "0", case["is_xonly"])) + return "0" + + +def init_optional_expected(case): + return hexstr_to_intarray(case["expected"]) if "expected" in case else 0 + + +def init_cases(cases, f): + s = textwrap.indent("{\n", 4 * " ") + for (i, case) in enumerate(cases): + s += textwrap.indent("%s\n" % f(case), 8 * " ") + s += textwrap.indent("},\n", 4 * " ") + return s + + +def finish_init(): + return "};\n" + + +s = ( + """/** + * Automatically generated by %s. + * + * The test vectors for the KeySort function are included in this file. They can + * be found in src/modules/extrakeys/tests_impl.h. */ +""" + % sys.argv[0] +) + + +s += """ +enum MUSIG_ERROR { + MUSIG_PUBKEY, + MUSIG_TWEAK, + MUSIG_PUBNONCE, + MUSIG_AGGNONCE, + MUSIG_SECNONCE, + MUSIG_SIG, + MUSIG_SIG_VERIFY, + MUSIG_OTHER +}; +""" + +# key agg vectors +with open(sys.argv[1] + "/key_agg_vectors.json", "r") as f: + data = json.load(f) + + max_key_indices = max( + len(test_case["key_indices"]) for test_case in data["valid_test_cases"] + ) + max_tweak_indices = max( + len(test_case["tweak_indices"]) for test_case in data["error_test_cases"] + ) + num_pubkeys = len(data["pubkeys"]) + max_pubkeys = max(num_pubkeys, max_pubkeys) + num_tweaks = len(data["tweaks"]) + num_valid_cases = len(data["valid_test_cases"]) + num_error_cases = len(data["error_test_cases"]) + + # Add structures for valid and error cases + s += ( + """ +struct musig_key_agg_valid_test_case { + size_t key_indices_len; + size_t key_indices[%d]; + unsigned char expected[32]; +}; +""" + % max_key_indices + ) + s += """ +struct musig_key_agg_error_test_case { + size_t key_indices_len; + size_t key_indices[%d]; + size_t tweak_indices_len; + size_t tweak_indices[%d]; + int is_xonly[%d]; + enum MUSIG_ERROR error; +}; +""" % ( + max_key_indices, + max_tweak_indices, + max_tweak_indices, + ) + + # Add structure for entire vector + s += """ +struct musig_key_agg_vector { + unsigned char pubkeys[%d][33]; + unsigned char tweaks[%d][32]; + struct musig_key_agg_valid_test_case valid_case[%d]; + struct musig_key_agg_error_test_case error_case[%d]; +}; +""" % ( + num_pubkeys, + num_tweaks, + num_valid_cases, + num_error_cases, + ) + + s += create_init("key_agg") + # Add pubkeys and tweaks to the vector + s += init_arrays("pubkeys") + s += init_arrays("tweaks") + + # Add valid cases to the vector + s += init_cases( + data["valid_test_cases"], + lambda case: "{ %s, { %s }}," + % (init_indices(case["key_indices"]), hexstr_to_intarray(case["expected"])), + ) + + def comment_to_error(case): + comment = case["comment"] + if "public key" in comment.lower(): + return "MUSIG_PUBKEY" + elif "tweak" in comment.lower(): + return "MUSIG_TWEAK" + else: + sys.exit("Unknown error") + + # Add error cases to the vector + s += init_cases( + data["error_test_cases"], + lambda case: "{ %s, %s, { %s }, %s }," + % ( + init_indices(case["key_indices"]), + init_indices(case["tweak_indices"]), + init_is_xonly(case), + comment_to_error(case), + ), + ) + + s += finish_init() + +# nonce gen vectors +with open(sys.argv[1] + "/nonce_gen_vectors.json", "r") as f: + data = json.load(f) + + # The MuSig2 implementation only allows messages of length 32 + data["test_cases"] = list( + filter(lambda c: c["msg"] is None or len(c["msg"]) == 64, data["test_cases"]) + ) + + num_tests = len(data["test_cases"]) + + s += """ +struct musig_nonce_gen_test_case { + unsigned char rand_[32]; + int has_sk; + unsigned char sk[32]; + unsigned char pk[33]; + int has_aggpk; + unsigned char aggpk[32]; + int has_msg; + unsigned char msg[32]; + int has_extra_in; + unsigned char extra_in[32]; + unsigned char expected_secnonce[97]; + unsigned char expected_pubnonce[66]; +}; +""" + + s += ( + """ +struct musig_nonce_gen_vector { + struct musig_nonce_gen_test_case test_case[%d]; +}; +""" + % num_tests + ) + + s += create_init("nonce_gen") + + def init_array_maybe(array): + return "%d , { %s }" % ( + 0 if array is None else 1, + hexstr_to_intarray(array) if array is not None else 0, + ) + + s += init_cases( + data["test_cases"], + lambda case: "{ { %s }, %s, { %s }, %s, %s, %s, { %s }, { %s } }," + % ( + hexstr_to_intarray(case["rand_"]), + init_array_maybe(case["sk"]), + hexstr_to_intarray(case["pk"]), + init_array_maybe(case["aggpk"]), + init_array_maybe(case["msg"]), + init_array_maybe(case["extra_in"]), + hexstr_to_intarray(case["expected_secnonce"]), + hexstr_to_intarray(case["expected_pubnonce"]), + ), + ) + + s += finish_init() + +# nonce agg vectors +with open(sys.argv[1] + "/nonce_agg_vectors.json", "r") as f: + data = json.load(f) + + num_pnonces = len(data["pnonces"]) + num_valid_cases = len(data["valid_test_cases"]) + num_error_cases = len(data["error_test_cases"]) + + pnonce_indices_len = 2 + for case in data["valid_test_cases"] + data["error_test_cases"]: + assert len(case["pnonce_indices"]) == pnonce_indices_len + + # Add structures for valid and error cases + s += """ +struct musig_nonce_agg_test_case { + size_t pnonce_indices[2]; + /* if valid case */ + unsigned char expected[66]; + /* if error case */ + int invalid_nonce_idx; +}; +""" + # Add structure for entire vector + s += """ +struct musig_nonce_agg_vector { + unsigned char pnonces[%d][66]; + struct musig_nonce_agg_test_case valid_case[%d]; + struct musig_nonce_agg_test_case error_case[%d]; +}; +""" % ( + num_pnonces, + num_valid_cases, + num_error_cases, + ) + + s += create_init("nonce_agg") + s += init_arrays("pnonces") + + for cases in (data["valid_test_cases"], data["error_test_cases"]): + s += init_cases( + cases, + lambda case: "{ { %s }, { %s }, %d }," + % ( + ", ".join(map(str, case["pnonce_indices"])), + init_optional_expected(case), + case["error"]["signer"] if "error" in case else 0, + ), + ) + s += finish_init() + +# sign/verify vectors +with open(sys.argv[1] + "/sign_verify_vectors.json", "r") as f: + data = json.load(f) + + # The MuSig2 implementation only allows messages of length 32 + assert list(filter(lambda x: len(x) == 64, data["msgs"]))[0] == data["msgs"][0] + data["msgs"] = [data["msgs"][0]] + + def filter_msg32(k): + return list(filter(lambda x: x["msg_index"] == 0, data[k])) + + data["valid_test_cases"] = filter_msg32("valid_test_cases") + data["sign_error_test_cases"] = filter_msg32("sign_error_test_cases") + data["verify_error_test_cases"] = filter_msg32("verify_error_test_cases") + data["verify_fail_test_cases"] = filter_msg32("verify_fail_test_cases") + + num_pubkeys = len(data["pubkeys"]) + max_pubkeys = max(num_pubkeys, max_pubkeys) + num_secnonces = len(data["secnonces"]) + num_pubnonces = len(data["pnonces"]) + num_aggnonces = len(data["aggnonces"]) + num_msgs = len(data["msgs"]) + num_valid_cases = len(data["valid_test_cases"]) + num_sign_error_cases = len(data["sign_error_test_cases"]) + num_verify_fail_cases = len(data["verify_fail_test_cases"]) + num_verify_error_cases = len(data["verify_error_test_cases"]) + + all_cases = ( + data["valid_test_cases"] + + data["sign_error_test_cases"] + + data["verify_error_test_cases"] + + data["verify_fail_test_cases"] + ) + max_key_indices = max(len(test_case["key_indices"]) for test_case in all_cases) + max_nonce_indices = max( + len(test_case["nonce_indices"]) if "nonce_indices" in test_case else 0 + for test_case in all_cases + ) + # Add structures for valid and error cases + s += ( + """ +/* Omit pubnonces in the test vectors because our partial signature verification + * implementation is able to accept the aggnonce directly. */ +struct musig_valid_case { + size_t key_indices_len; + size_t key_indices[%d]; + size_t aggnonce_index; + size_t msg_index; + size_t signer_index; + unsigned char expected[32]; +}; +""" + % max_key_indices + ) + + s += ( + """ +struct musig_sign_error_case { + size_t key_indices_len; + size_t key_indices[%d]; + size_t aggnonce_index; + size_t msg_index; + size_t secnonce_index; + enum MUSIG_ERROR error; +}; +""" + % max_key_indices + ) + + s += """ +struct musig_verify_fail_error_case { + unsigned char sig[32]; + size_t key_indices_len; + size_t key_indices[%d]; + size_t nonce_indices_len; + size_t nonce_indices[%d]; + size_t msg_index; + size_t signer_index; + enum MUSIG_ERROR error; +}; +""" % ( + max_key_indices, + max_nonce_indices, + ) + + # Add structure for entire vector + s += """ +struct musig_sign_verify_vector { + unsigned char sk[32]; + unsigned char pubkeys[%d][33]; + unsigned char secnonces[%d][194]; + unsigned char pubnonces[%d][194]; + unsigned char aggnonces[%d][66]; + unsigned char msgs[%d][32]; + struct musig_valid_case valid_case[%d]; + struct musig_sign_error_case sign_error_case[%d]; + struct musig_verify_fail_error_case verify_fail_case[%d]; + struct musig_verify_fail_error_case verify_error_case[%d]; +}; +""" % ( + num_pubkeys, + num_secnonces, + num_pubnonces, + num_aggnonces, + num_msgs, + num_valid_cases, + num_sign_error_cases, + num_verify_fail_cases, + num_verify_error_cases, + ) + + s += create_init("sign_verify") + s += init_array("sk") + s += init_arrays("pubkeys") + s += init_arrays("secnonces") + s += init_arrays("pnonces") + s += init_arrays("aggnonces") + s += init_arrays("msgs") + + s += init_cases( + data["valid_test_cases"], + lambda case: "{ %s, %d, %d, %d, { %s }}," + % ( + init_indices(case["key_indices"]), + case["aggnonce_index"], + case["msg_index"], + case["signer_index"], + init_optional_expected(case), + ), + ) + + def sign_error(case): + comment = case["comment"] + if "pubkey" in comment or "public key" in comment: + return "MUSIG_PUBKEY" + elif "Aggregate nonce" in comment: + return "MUSIG_AGGNONCE" + elif "Secnonce" in comment: + return "MUSIG_SECNONCE" + else: + sys.exit("Unknown sign error") + + s += init_cases( + data["sign_error_test_cases"], + lambda case: "{ %s, %d, %d, %d, %s }," + % ( + init_indices(case["key_indices"]), + case["aggnonce_index"], + case["msg_index"], + case["secnonce_index"], + sign_error(case), + ), + ) + + def verify_error(case): + comment = case["comment"] + if "exceeds" in comment: + return "MUSIG_SIG" + elif "Wrong signer" in comment or "Wrong signature" in comment: + return "MUSIG_SIG_VERIFY" + elif "pubnonce" in comment: + return "MUSIG_PUBNONCE" + elif "pubkey" in comment: + return "MUSIG_PUBKEY" + else: + sys.exit("Unknown verify error") + + for cases in ("verify_fail_test_cases", "verify_error_test_cases"): + s += init_cases( + data[cases], + lambda case: "{ { %s }, %s, %s, %d, %d, %s }," + % ( + hexstr_to_intarray(case["sig"]), + init_indices(case["key_indices"]), + init_indices(case["nonce_indices"]), + case["msg_index"], + case["signer_index"], + verify_error(case), + ), + ) + + s += finish_init() + +# tweak vectors +with open(sys.argv[1] + "/tweak_vectors.json", "r") as f: + data = json.load(f) + + num_pubkeys = len(data["pubkeys"]) + max_pubkeys = max(num_pubkeys, max_pubkeys) + num_pubnonces = len(data["pnonces"]) + num_tweaks = len(data["tweaks"]) + num_valid_cases = len(data["valid_test_cases"]) + num_error_cases = len(data["error_test_cases"]) + + all_cases = data["valid_test_cases"] + data["error_test_cases"] + max_key_indices = max(len(test_case["key_indices"]) for test_case in all_cases) + max_tweak_indices = max(len(test_case["tweak_indices"]) for test_case in all_cases) + max_nonce_indices = max(len(test_case["nonce_indices"]) for test_case in all_cases) + # Add structures for valid and error cases + s += """ +struct musig_tweak_case { + size_t key_indices_len; + size_t key_indices[%d]; + size_t nonce_indices_len; + size_t nonce_indices[%d]; + size_t tweak_indices_len; + size_t tweak_indices[%d]; + int is_xonly[%d]; + size_t signer_index; + unsigned char expected[32]; +}; +""" % ( + max_key_indices, + max_nonce_indices, + max_tweak_indices, + max_tweak_indices, + ) + + # Add structure for entire vector + s += """ +struct musig_tweak_vector { + unsigned char sk[32]; + unsigned char secnonce[97]; + unsigned char aggnonce[66]; + unsigned char msg[32]; + unsigned char pubkeys[%d][33]; + unsigned char pubnonces[%d][194]; + unsigned char tweaks[%d][32]; + struct musig_tweak_case valid_case[%d]; + struct musig_tweak_case error_case[%d]; +}; +""" % ( + num_pubkeys, + num_pubnonces, + num_tweaks, + num_valid_cases, + num_error_cases, + ) + s += create_init("tweak") + s += init_array("sk") + s += init_array("secnonce") + s += init_array("aggnonce") + s += init_array("msg") + s += init_arrays("pubkeys") + s += init_arrays("pnonces") + s += init_arrays("tweaks") + + s += init_cases( + data["valid_test_cases"], + lambda case: "{ %s, %s, %s, { %s }, %d, { %s }}," + % ( + init_indices(case["key_indices"]), + init_indices(case["nonce_indices"]), + init_indices(case["tweak_indices"]), + init_is_xonly(case), + case["signer_index"], + init_optional_expected(case), + ), + ) + + s += init_cases( + data["error_test_cases"], + lambda case: "{ %s, %s, %s, { %s }, %d, { %s }}," + % ( + init_indices(case["key_indices"]), + init_indices(case["nonce_indices"]), + init_indices(case["tweak_indices"]), + init_is_xonly(case), + case["signer_index"], + init_optional_expected(case), + ), + ) + + s += finish_init() + +# sigagg vectors +with open(sys.argv[1] + "/sig_agg_vectors.json", "r") as f: + data = json.load(f) + + num_pubkeys = len(data["pubkeys"]) + max_pubkeys = max(num_pubkeys, max_pubkeys) + num_tweaks = len(data["tweaks"]) + num_psigs = len(data["psigs"]) + num_valid_cases = len(data["valid_test_cases"]) + num_error_cases = len(data["error_test_cases"]) + + all_cases = data["valid_test_cases"] + data["error_test_cases"] + max_key_indices = max(len(test_case["key_indices"]) for test_case in all_cases) + max_tweak_indices = max(len(test_case["tweak_indices"]) for test_case in all_cases) + max_psig_indices = max(len(test_case["psig_indices"]) for test_case in all_cases) + + # Add structures for valid and error cases + s += """ +/* Omit pubnonces in the test vectors because they're only needed for + * implementations that do not directly accept an aggnonce. */ +struct musig_sig_agg_case { + size_t key_indices_len; + size_t key_indices[%d]; + size_t tweak_indices_len; + size_t tweak_indices[%d]; + int is_xonly[%d]; + unsigned char aggnonce[66]; + size_t psig_indices_len; + size_t psig_indices[%d]; + /* if valid case */ + unsigned char expected[64]; + /* if error case */ + int invalid_sig_idx; +}; +""" % ( + max_key_indices, + max_tweak_indices, + max_tweak_indices, + max_psig_indices, + ) + + # Add structure for entire vector + s += """ +struct musig_sig_agg_vector { + unsigned char pubkeys[%d][33]; + unsigned char tweaks[%d][32]; + unsigned char psigs[%d][32]; + unsigned char msg[32]; + struct musig_sig_agg_case valid_case[%d]; + struct musig_sig_agg_case error_case[%d]; +}; +""" % ( + num_pubkeys, + num_tweaks, + num_psigs, + num_valid_cases, + num_error_cases, + ) + + s += create_init("sig_agg") + s += init_arrays("pubkeys") + s += init_arrays("tweaks") + s += init_arrays("psigs") + s += init_array("msg") + + for cases in (data["valid_test_cases"], data["error_test_cases"]): + s += init_cases( + cases, + lambda case: "{ %s, %s, { %s }, { %s }, %s, { %s }, %d }," + % ( + init_indices(case["key_indices"]), + init_indices(case["tweak_indices"]), + init_is_xonly(case), + hexstr_to_intarray(case["aggnonce"]), + init_indices(case["psig_indices"]), + init_optional_expected(case), + case["error"]["signer"] if "error" in case else 0, + ), + ) + s += finish_init() +s += "enum { MUSIG_VECTORS_MAX_PUBKEYS = %d };" % max_pubkeys +print(s) From 168c92011f5ddae8d7fe28d166b68f126459548a Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Sat, 6 Jan 2024 20:17:27 +0000 Subject: [PATCH 417/557] build: allow enabling the musig module in cmake --- CMakeLists.txt | 10 ++++++++++ examples/CMakeLists.txt | 4 ++++ src/CMakeLists.txt | 3 +++ 3 files changed, 17 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 4ca8cbe8e3..d136d43ca5 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -51,6 +51,7 @@ option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) option(SECP256K1_ENABLE_MODULE_RECOVERY "Enable ECDSA pubkey recovery module." OFF) option(SECP256K1_ENABLE_MODULE_EXTRAKEYS "Enable extrakeys module." ON) option(SECP256K1_ENABLE_MODULE_SCHNORRSIG "Enable schnorrsig module." ON) +option(SECP256K1_ENABLE_MODULE_MUSIG "Enable musig module." ON) option(SECP256K1_ENABLE_MODULE_ELLSWIFT "Enable ElligatorSwift module." ON) # Processing must be done in a topological sorting of the dependency graph @@ -59,6 +60,14 @@ if(SECP256K1_ENABLE_MODULE_ELLSWIFT) add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) endif() +if(SECP256K1_ENABLE_MODULE_MUSIG) + if(DEFINED SECP256K1_ENABLE_MODULE_SCHNORRSIG AND NOT SECP256K1_ENABLE_MODULE_SCHNORRSIG) + message(FATAL_ERROR "Module dependency error: You have disabled the schnorrsig module explicitly, but it is required by the musig module.") + endif() + set(SECP256K1_ENABLE_MODULE_SCHNORRSIG ON) + add_compile_definitions(ENABLE_MODULE_MUSIG=1) +endif() + if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) if(DEFINED SECP256K1_ENABLE_MODULE_EXTRAKEYS AND NOT SECP256K1_ENABLE_MODULE_EXTRAKEYS) message(FATAL_ERROR "Module dependency error: You have disabled the extrakeys module explicitly, but it is required by the schnorrsig module.") @@ -297,6 +306,7 @@ message(" ECDH ................................ ${SECP256K1_ENABLE_MODULE_ECDH} message(" ECDSA pubkey recovery ............... ${SECP256K1_ENABLE_MODULE_RECOVERY}") message(" extrakeys ........................... ${SECP256K1_ENABLE_MODULE_EXTRAKEYS}") message(" schnorrsig .......................... ${SECP256K1_ENABLE_MODULE_SCHNORRSIG}") +message(" musig ............................... ${SECP256K1_ENABLE_MODULE_MUSIG}") message(" ElligatorSwift ...................... ${SECP256K1_ENABLE_MODULE_ELLSWIFT}") message("Parameters:") message(" ecmult window size .................. ${SECP256K1_ECMULT_WINDOW_SIZE}") diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index fd1ebce395..f844d4a0bd 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -32,3 +32,7 @@ endif() if(SECP256K1_ENABLE_MODULE_ELLSWIFT) add_example(ellswift) endif() + +if(SECP256K1_ENABLE_MODULE_MUSIG) + add_example(musig) +endif() diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 4cbaeb914d..cc042b6ec3 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -132,6 +132,9 @@ if(SECP256K1_INSTALL) if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h") endif() + if(SECP256K1_ENABLE_MODULE_MUSIG) + list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_musig.h") + endif() if(SECP256K1_ENABLE_MODULE_ELLSWIFT) list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ellswift.h") endif() From cd4f84f3ba8de37726274f61d5a34477c88433cf Mon Sep 17 00:00:00 2001 From: cheapshot003 Date: Thu, 29 Aug 2024 22:24:20 +0200 Subject: [PATCH 418/557] Improve examples/documentation: remove key generation loops Co-Authored by: Sebastian Falbesoner --- examples/ecdh.c | 22 ++++++++++------------ examples/ecdsa.c | 22 ++++++++++------------ examples/ellswift.c | 21 ++++++++++----------- examples/schnorr.c | 26 ++++++++++++-------------- include/secp256k1.h | 6 ++++-- 5 files changed, 46 insertions(+), 51 deletions(-) diff --git a/examples/ecdh.c b/examples/ecdh.c index d71fd2f604..ef9e8b896f 100644 --- a/examples/ecdh.c +++ b/examples/ecdh.c @@ -42,18 +42,16 @@ int main(void) { assert(return_val); /*** Key Generation ***/ - - /* If the secret key is zero or out of range (bigger than secp256k1's - * order), we try to sample a new key. Note that the probability of this - * happening is negligible. */ - while (1) { - if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { - printf("Failed to generate randomness\n"); - return 1; - } - if (secp256k1_ec_seckey_verify(ctx, seckey1) && secp256k1_ec_seckey_verify(ctx, seckey2)) { - break; - } + if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { + printf("Failed to generate randomness\n"); + return 1; + } + /* If the secret key is zero or out of range (greater than secp256k1's + * order), we fail. Note that the probability of this occurring + * is negligible with a properly functioning random number generator. */ + if (!secp256k1_ec_seckey_verify(ctx, seckey1) || !secp256k1_ec_seckey_verify(ctx, seckey2)) { + printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); + return 1; } /* Public key creation using a valid context with a verified secret key should never fail */ diff --git a/examples/ecdsa.c b/examples/ecdsa.c index d5c4613d9c..433c58ffb8 100644 --- a/examples/ecdsa.c +++ b/examples/ecdsa.c @@ -49,18 +49,16 @@ int main(void) { assert(return_val); /*** Key Generation ***/ - - /* If the secret key is zero or out of range (bigger than secp256k1's - * order), we try to sample a new key. Note that the probability of this - * happening is negligible. */ - while (1) { - if (!fill_random(seckey, sizeof(seckey))) { - printf("Failed to generate randomness\n"); - return 1; - } - if (secp256k1_ec_seckey_verify(ctx, seckey)) { - break; - } + /* If the secret key is zero or out of range (greater than secp256k1's + * order), we return 1. Note that the probability of this occurring + * is negligible with a properly functioning random number generator. */ + if (!fill_random(seckey, sizeof(seckey))) { + printf("Failed to generate randomness\n"); + return 1; + } + if (!secp256k1_ec_seckey_verify(ctx, seckey)) { + printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); + return 1; } /* Public key creation using a valid context with a verified secret key should never fail */ diff --git a/examples/ellswift.c b/examples/ellswift.c index 52be7eebfb..e6159f36c9 100644 --- a/examples/ellswift.c +++ b/examples/ellswift.c @@ -48,17 +48,16 @@ int main(void) { /*** Generate secret keys ***/ - /* If the secret key is zero or out of range (bigger than secp256k1's - * order), we try to sample a new key. Note that the probability of this - * happening is negligible. */ - while (1) { - if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { - printf("Failed to generate randomness\n"); - return 1; - } - if (secp256k1_ec_seckey_verify(ctx, seckey1) && secp256k1_ec_seckey_verify(ctx, seckey2)) { - break; - } + /* If the secret key is zero or out of range (greater than secp256k1's + * order), we return 1. Note that the probability of this occurring + * is negligible with a properly functioning random number generator. */ + if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { + printf("Failed to generate randomness\n"); + return 1; + } + if (!secp256k1_ec_seckey_verify(ctx, seckey1) || !secp256k1_ec_seckey_verify(ctx, seckey2)) { + printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); + return 1; } /* Generate ElligatorSwift public keys. This should never fail with valid context and diff --git a/examples/schnorr.c b/examples/schnorr.c index 8d5d14bdaf..adced235b3 100644 --- a/examples/schnorr.c +++ b/examples/schnorr.c @@ -43,20 +43,18 @@ int main(void) { assert(return_val); /*** Key Generation ***/ - - /* If the secret key is zero or out of range (bigger than secp256k1's - * order), we try to sample a new key. Note that the probability of this - * happening is negligible. */ - while (1) { - if (!fill_random(seckey, sizeof(seckey))) { - printf("Failed to generate randomness\n"); - return 1; - } - /* Try to create a keypair with a valid context, it should only fail if - * the secret key is zero or out of range. */ - if (secp256k1_keypair_create(ctx, &keypair, seckey)) { - break; - } + /* If the secret key is zero or out of range (greater than secp256k1's + * order), we return 1. Note that the probability of this occurring + * is negligible with a properly functioning random number generator. */ + if (!fill_random(seckey, sizeof(seckey))) { + printf("Failed to generate randomness\n"); + return 1; + } + /* Try to create a keypair with a valid context, it should only fail if + * the secret key is zero or out of range. */ + if (!secp256k1_keypair_create(ctx, &keypair, seckey)) { + printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); + return 1; } /* Extract the X-only public key from the keypair. We pass NULL for diff --git a/include/secp256k1.h b/include/secp256k1.h index cfbdd528c2..88928111c4 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -679,12 +679,14 @@ SECP256K1_API int secp256k1_ecdsa_sign( const void *ndata ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); -/** Verify an ECDSA secret key. +/** Verify an elliptic curve secret key. * * A secret key is valid if it is not 0 and less than the secp256k1 curve order * when interpreted as an integer (most significant byte first). The * probability of choosing a 32-byte string uniformly at random which is an - * invalid secret key is negligible. + * invalid secret key is negligible. However, if it does happen it should + * be assumed that the randomness source is severely broken and there should + * be no retry. * * Returns: 1: secret key is valid * 0: secret key is invalid From 70b6be1834e2ece8d9cfcf2ad12e4452c87cdc20 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Sun, 13 Oct 2024 19:08:02 +0000 Subject: [PATCH 419/557] extrakeys: improve doc of keypair_create (don't suggest retry) --- include/secp256k1.h | 2 +- include/secp256k1_extrakeys.h | 9 ++++++--- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 6e96778da9..25196fb752 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -684,7 +684,7 @@ SECP256K1_API int secp256k1_ecdsa_sign( * A secret key is valid if it is not 0 and less than the secp256k1 curve order * when interpreted as an integer (most significant byte first). The * probability of choosing a 32-byte string uniformly at random which is an - * invalid secret key is negligible. However, if it does happen it should + * invalid secret key is negligible. However, if it does happen it should * be assumed that the randomness source is severely broken and there should * be no retry. * diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index ad70b92f95..13acb0325f 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -155,10 +155,13 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_tweak_add_ const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5); -/** Compute the keypair for a secret key. +/** Compute the keypair for a valid secret key. * - * Returns: 1: secret was valid, keypair is ready to use - * 0: secret was invalid, try again with a different secret + * See the documentation of `secp256k1_ec_seckey_verify` for more information + * about the validity of secret keys. + * + * Returns: 1: secret key is valid + * 0: secret key is invalid * Args: ctx: pointer to a context object (not secp256k1_context_static). * Out: keypair: pointer to the created keypair. * In: seckey: pointer to a 32-byte secret key. From e8908221a45a368c2c8ae0fed0e2310968d4815a Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Sun, 13 Oct 2024 19:10:45 +0000 Subject: [PATCH 420/557] examples: do not retry generating seckey randomness in musig --- examples/musig.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/examples/musig.c b/examples/musig.c index 396dbb9f17..0352dc40f3 100644 --- a/examples/musig.c +++ b/examples/musig.c @@ -38,14 +38,17 @@ struct signer { /* Create a key pair, store it in signer_secrets->keypair and signer->pubkey */ static int create_keypair(const secp256k1_context* ctx, struct signer_secrets *signer_secrets, struct signer *signer) { unsigned char seckey[32]; - while (1) { - if (!fill_random(seckey, sizeof(seckey))) { - printf("Failed to generate randomness\n"); - return 0; - } - if (secp256k1_keypair_create(ctx, &signer_secrets->keypair, seckey)) { - break; - } + + if (!fill_random(seckey, sizeof(seckey))) { + printf("Failed to generate randomness\n"); + return 0; + } + /* Try to create a keypair with a valid context. This only fails if the + * secret key is zero or out of range (greater than secp256k1's order). Note + * that the probability of this occurring is negligible with a properly + * functioning random number generator. */ + if (!secp256k1_keypair_create(ctx, &signer_secrets->keypair, seckey)) { + return 0; } if (!secp256k1_keypair_pub(ctx, &signer->pubkey, &signer_secrets->keypair)) { return 0; From 5bab8f6d3c4946f32bebd2a99b9975aa160ff794 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Sun, 13 Oct 2024 19:11:02 +0000 Subject: [PATCH 421/557] examples: make key generation doc consistent --- examples/ecdh.c | 4 ++-- examples/ecdsa.c | 6 +++--- examples/ellswift.c | 7 +++---- examples/schnorr.c | 11 +++++------ 4 files changed, 13 insertions(+), 15 deletions(-) diff --git a/examples/ecdh.c b/examples/ecdh.c index ef9e8b896f..13aa760b2d 100644 --- a/examples/ecdh.c +++ b/examples/ecdh.c @@ -47,8 +47,8 @@ int main(void) { return 1; } /* If the secret key is zero or out of range (greater than secp256k1's - * order), we fail. Note that the probability of this occurring - * is negligible with a properly functioning random number generator. */ + * order), we fail. Note that the probability of this occurring is negligible + * with a properly functioning random number generator. */ if (!secp256k1_ec_seckey_verify(ctx, seckey1) || !secp256k1_ec_seckey_verify(ctx, seckey2)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); return 1; diff --git a/examples/ecdsa.c b/examples/ecdsa.c index 433c58ffb8..80ae9d46c5 100644 --- a/examples/ecdsa.c +++ b/examples/ecdsa.c @@ -49,13 +49,13 @@ int main(void) { assert(return_val); /*** Key Generation ***/ - /* If the secret key is zero or out of range (greater than secp256k1's - * order), we return 1. Note that the probability of this occurring - * is negligible with a properly functioning random number generator. */ if (!fill_random(seckey, sizeof(seckey))) { printf("Failed to generate randomness\n"); return 1; } + /* If the secret key is zero or out of range (greater than secp256k1's + * order), we fail. Note that the probability of this occurring is negligible + * with a properly functioning random number generator. */ if (!secp256k1_ec_seckey_verify(ctx, seckey)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); return 1; diff --git a/examples/ellswift.c b/examples/ellswift.c index e6159f36c9..afb2fee40b 100644 --- a/examples/ellswift.c +++ b/examples/ellswift.c @@ -47,14 +47,13 @@ int main(void) { assert(return_val); /*** Generate secret keys ***/ - - /* If the secret key is zero or out of range (greater than secp256k1's - * order), we return 1. Note that the probability of this occurring - * is negligible with a properly functioning random number generator. */ if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { printf("Failed to generate randomness\n"); return 1; } + /* If the secret key is zero or out of range (greater than secp256k1's + * order), we fail. Note that the probability of this occurring is negligible + * with a properly functioning random number generator. */ if (!secp256k1_ec_seckey_verify(ctx, seckey1) || !secp256k1_ec_seckey_verify(ctx, seckey2)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); return 1; diff --git a/examples/schnorr.c b/examples/schnorr.c index adced235b3..909fcaa1f3 100644 --- a/examples/schnorr.c +++ b/examples/schnorr.c @@ -43,18 +43,17 @@ int main(void) { assert(return_val); /*** Key Generation ***/ - /* If the secret key is zero or out of range (greater than secp256k1's - * order), we return 1. Note that the probability of this occurring - * is negligible with a properly functioning random number generator. */ if (!fill_random(seckey, sizeof(seckey))) { printf("Failed to generate randomness\n"); return 1; } - /* Try to create a keypair with a valid context, it should only fail if - * the secret key is zero or out of range. */ + /* Try to create a keypair with a valid context. This only fails if the + * secret key is zero or out of range (greater than secp256k1's order). Note + * that the probability of this occurring is negligible with a properly + * functioning random number generator. */ if (!secp256k1_keypair_create(ctx, &keypair, seckey)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); - return 1; + return 1; } /* Extract the X-only public key from the keypair. We pass NULL for From 87384f5c0f2bdf2b500858a18f5397e8dcffa8ec Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 12 Aug 2024 12:07:45 +0100 Subject: [PATCH 422/557] cmake, test: Add `secp256k1_` prefix to test names This change improves regex matching options when using `ctest` in downstream projects. --- examples/CMakeLists.txt | 2 +- src/CMakeLists.txt | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index 675f4c8c3a..c9da9de6be 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -9,7 +9,7 @@ function(add_example name) $<$:bcrypt> ) set(test_name ${name}_example) - add_test(NAME ${test_name} COMMAND ${target_name}) + add_test(NAME secp256k1_${test_name} COMMAND ${target_name}) endfunction() add_example(ecdsa) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index cc042b6ec3..f31b8c8f55 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -87,12 +87,12 @@ endif() if(SECP256K1_BUILD_TESTS) add_executable(noverify_tests tests.c) target_link_libraries(noverify_tests secp256k1_precomputed secp256k1_asm) - add_test(NAME noverify_tests COMMAND noverify_tests) + add_test(NAME secp256k1_noverify_tests COMMAND noverify_tests) if(NOT CMAKE_BUILD_TYPE STREQUAL "Coverage") add_executable(tests tests.c) target_compile_definitions(tests PRIVATE VERIFY) target_link_libraries(tests secp256k1_precomputed secp256k1_asm) - add_test(NAME tests COMMAND tests) + add_test(NAME secp256k1_tests COMMAND tests) endif() endif() @@ -101,7 +101,7 @@ if(SECP256K1_BUILD_EXHAUSTIVE_TESTS) add_executable(exhaustive_tests tests_exhaustive.c) target_link_libraries(exhaustive_tests secp256k1_asm) target_compile_definitions(exhaustive_tests PRIVATE $<$>:VERIFY>) - add_test(NAME exhaustive_tests COMMAND exhaustive_tests) + add_test(NAME secp256k1_exhaustive_tests COMMAND exhaustive_tests) endif() if(SECP256K1_BUILD_CTIME_TESTS) From 57eda3ba300acb2e54f26a8ad00fbdd5750867ed Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sun, 20 Oct 2024 02:25:06 +0200 Subject: [PATCH 423/557] musig: ctimetests: fix _declassify range for generated nonce points The area marked as non-secret exceeds the nonce_pts array in the second iteration of the for loop. Fix that by passing the correct size to the _declassify call. --- src/modules/musig/session_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index 2715b09d57..fbdfd63508 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -448,7 +448,7 @@ int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_m secp256k1_gej nonce_ptj; secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &nonce_ptj, &k[i]); secp256k1_ge_set_gej(&nonce_pts[i], &nonce_ptj); - secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts)); + secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts[i])); secp256k1_scalar_clear(&k[i]); } /* None of the nonce_pts will be infinity because k != 0 with overwhelming From 8be3839fb2e1e501ef82c5b341e5a7f88587997a Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 11 May 2023 13:24:37 +0000 Subject: [PATCH 424/557] Remove unused scratch space from API --- CHANGELOG.md | 3 +++ include/secp256k1.h | 36 ------------------------------------ src/scratch.h | 2 ++ src/secp256k1.c | 4 ++-- 4 files changed, 7 insertions(+), 38 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 2f2e0f538f..5026aab1f5 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -13,6 +13,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - Document `doc/musig.md` for further notes on API usage. - Usage example `examples/musig.c`. +#### Removed + - Removed the `secp256k1_scratch_space` struct and its associated functions `secp256k1_scratch_space_create` `secp256k1_scratch_space_destroy` because the scratch space was unused in the API. + ## [0.5.1] - 2024-08-01 #### Added diff --git a/include/secp256k1.h b/include/secp256k1.h index 25196fb752..a28615a708 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -49,19 +49,6 @@ extern "C" { */ typedef struct secp256k1_context_struct secp256k1_context; -/** Opaque data structure that holds rewritable "scratch space" - * - * The purpose of this structure is to replace dynamic memory allocations, - * because we target architectures where this may not be available. It is - * essentially a resizable (within specified parameters) block of bytes, - * which is initially created either by memory allocation or TODO as a pointer - * into some fixed rewritable space. - * - * Unlike the context object, this cannot safely be shared between threads - * without additional synchronization logic. - */ -typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space; - /** Opaque data structure that holds a parsed and valid public key. * * The exact representation of data inside is implementation defined and not @@ -392,29 +379,6 @@ SECP256K1_API void secp256k1_context_set_error_callback( const void *data ) SECP256K1_ARG_NONNULL(1); -/** Create a secp256k1 scratch space object. - * - * Returns: a newly created scratch space. - * Args: ctx: pointer to a context object. - * In: size: amount of memory to be available as scratch space. Some extra - * (<100 bytes) will be allocated for extra accounting. - */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space *secp256k1_scratch_space_create( - const secp256k1_context *ctx, - size_t size -) SECP256K1_ARG_NONNULL(1); - -/** Destroy a secp256k1 scratch space. - * - * The pointer may not be used afterwards. - * Args: ctx: pointer to a context object. - * scratch: space to destroy - */ -SECP256K1_API void secp256k1_scratch_space_destroy( - const secp256k1_context *ctx, - secp256k1_scratch_space *scratch -) SECP256K1_ARG_NONNULL(1); - /** Parse a variable-length public key into the pubkey object. * * Returns: 1 if the public key was fully valid. diff --git a/src/scratch.h b/src/scratch.h index 9dcb7581f6..6164330b39 100644 --- a/src/scratch.h +++ b/src/scratch.h @@ -21,6 +21,8 @@ typedef struct secp256k1_scratch_space_struct { size_t max_size; } secp256k1_scratch; +typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space; + static secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t max_size); static void secp256k1_scratch_destroy(const secp256k1_callback* error_callback, secp256k1_scratch* scratch); diff --git a/src/secp256k1.c b/src/secp256k1.c index a8c249ad25..93b7b459a3 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -220,12 +220,12 @@ void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(co ctx->error_callback.data = data; } -secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) { +static secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) { VERIFY_CHECK(ctx != NULL); return secp256k1_scratch_create(&ctx->error_callback, max_size); } -void secp256k1_scratch_space_destroy(const secp256k1_context *ctx, secp256k1_scratch_space* scratch) { +static void secp256k1_scratch_space_destroy(const secp256k1_context *ctx, secp256k1_scratch_space* scratch) { VERIFY_CHECK(ctx != NULL); secp256k1_scratch_destroy(&ctx->error_callback, scratch); } From e7d384488e85650cd2a29493bc55fa5e68bf59c3 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 6 Jun 2019 16:51:33 +0200 Subject: [PATCH 425/557] Don't clear secrets in pippenger implementation This code is not supposed to handle secret data. --- src/ecmult_impl.h | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 07d8477eb0..8f58455209 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -660,7 +660,6 @@ static int secp256k1_ecmult_pippenger_batch(const secp256k1_callback* error_call struct secp256k1_pippenger_state *state_space; size_t idx = 0; size_t point_idx = 0; - int i, j; int bucket_window; secp256k1_gej_set_infinity(r); @@ -708,18 +707,6 @@ static int secp256k1_ecmult_pippenger_batch(const secp256k1_callback* error_call } secp256k1_ecmult_pippenger_wnaf(buckets, bucket_window, state_space, r, scalars, points, idx); - - /* Clear data */ - for(i = 0; (size_t)i < idx; i++) { - secp256k1_scalar_clear(&scalars[i]); - state_space->ps[i].skew_na = 0; - for(j = 0; j < WNAF_SIZE(bucket_window+1); j++) { - state_space->wnaf_na[i * WNAF_SIZE(bucket_window+1) + j] = 0; - } - } - for(i = 0; i < 1< Date: Fri, 25 Oct 2024 08:18:02 +0100 Subject: [PATCH 426/557] ci: Update macOS image The macOS 12 GHA image has been deprecated since 2024-10-07. See: https://github.com/actions/runner-images/issues/10721 --- .github/workflows/ci.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index a0dd19b54a..9550c7a161 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -612,9 +612,9 @@ jobs: if: ${{ always() }} x86_64-macos-native: - name: "x86_64: macOS Monterey, Valgrind" + name: "x86_64: macOS Ventura, Valgrind" # See: https://github.com/actions/runner-images#available-images. - runs-on: macos-12 + runs-on: macos-13 env: CC: 'clang' From 980c08df80aa1698bf7e8f1f4f8ecf20078535a8 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Fri, 25 Oct 2024 16:00:25 +0200 Subject: [PATCH 427/557] util: Remove unused (u)int64_t formatting macros We should anyway prefer to use the predefined macros from . If I haven't missed anything, this removes the last OS-specific #if, leaving us only with compiler-specific #if(def)s. --- src/util.h | 8 -------- 1 file changed, 8 deletions(-) diff --git a/src/util.h b/src/util.h index 49af867a46..ff9271ede7 100644 --- a/src/util.h +++ b/src/util.h @@ -192,14 +192,6 @@ static SECP256K1_INLINE void *checked_malloc(const secp256k1_callback* cb, size_ # endif #endif -#if defined(_WIN32) -# define I64FORMAT "I64d" -# define I64uFORMAT "I64u" -#else -# define I64FORMAT "lld" -# define I64uFORMAT "llu" -#endif - #if defined(__GNUC__) # define SECP256K1_GNUC_EXT __extension__ #else From 1c0812622277b85123c751b76f68f10f0f93b3c0 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 6 Jun 2019 21:22:28 +0200 Subject: [PATCH 428/557] Add secp256k1_memclear() for clearing secret data We rely on memset() and an __asm__ memory barrier where it's available or on SecureZeroMemory() on Windows. The fallback implementation uses a volatile function pointer to memset which the compiler is not clever enough to optimize. --- src/util.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/src/util.h b/src/util.h index 49af867a46..c2add8acf9 100644 --- a/src/util.h +++ b/src/util.h @@ -8,11 +8,17 @@ #define SECP256K1_UTIL_H #include "../include/secp256k1.h" +#include "checkmem.h" +#include #include #include #include #include +#if defined(_MSC_VER) +/* For SecureZeroMemory */ +#include +#endif #define STR_(x) #x #define STR(x) STR_(x) @@ -221,6 +227,34 @@ static SECP256K1_INLINE void secp256k1_memczero(void *s, size_t len, int flag) { } } +/* Cleanses memory to prevent leaking sensitive info. Won't be optimized out. */ +static SECP256K1_INLINE void secp256k1_memclear(void *ptr, size_t len) { +#if defined(_MSC_VER) + /* SecureZeroMemory is guaranteed not to be optimized out by MSVC. */ + SecureZeroMemory(ptr, len); +#elif defined(__GNUC__) + /* We use a memory barrier that scares the compiler away from optimizing out the memset. + * + * Quoting Adam Langley in commit ad1907fe73334d6c696c8539646c21b11178f20f + * in BoringSSL (ISC License): + * As best as we can tell, this is sufficient to break any optimisations that + * might try to eliminate "superfluous" memsets. + * This method is used in memzero_explicit() the Linux kernel, too. Its advantage is that it + * is pretty efficient, because the compiler can still implement the memset() efficently, + * just not remove it entirely. See "Dead Store Elimination (Still) Considered Harmful" by + * Yang et al. (USENIX Security 2017) for more background. + */ + memset(ptr, 0, len); + __asm__ __volatile__("" : : "r"(ptr) : "memory"); +#else + void *(*volatile const volatile_memset)(void *, int, size_t) = memset; + volatile_memset(ptr, 0, len); +#endif +#ifdef VERIFY + SECP256K1_CHECKMEM_UNDEFINE(ptr, len); +#endif +} + /** Semantics like memcmp. Variable-time. * * We use this to avoid possible compiler bugs with memcmp, e.g. From d79a6ccd43ae1681280e5e27d9cd181285bf8540 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 12 Jun 2019 16:05:06 +0200 Subject: [PATCH 429/557] Separate secp256k1_fe_set_int( . , 0 ) from secp256k1_fe_clear() There are two uses of the secp256k1_fe_clear() function that are now separated into these two functions in order to reflect the intent: 1) initializing the memory prior to being used -> converted to fe_set_int( . , 0 ) 2) zeroing the memory after being used such that no sensitive data remains. -> remains as fe_clear() In the latter case, 'magnitude' and 'normalized' need to be overwritten when VERIFY is enabled. Co-Authored-By: isle2983 --- src/field.h | 6 +----- src/field_impl.h | 2 +- src/group_impl.h | 10 +++++----- src/testutil.h | 2 +- 4 files changed, 8 insertions(+), 12 deletions(-) diff --git a/src/field.h b/src/field.h index 8c65a3aff6..9599030991 100644 --- a/src/field.h +++ b/src/field.h @@ -144,11 +144,7 @@ static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r); */ static void secp256k1_fe_set_int(secp256k1_fe *r, int a); -/** Set a field element to 0. - * - * On input, a does not need to be initialized. - * On output, a represents 0, is normalized and has magnitude 0. - */ +/** Clear a field element to prevent leaking sensitive information. */ static void secp256k1_fe_clear(secp256k1_fe *a); /** Determine whether a represents field element 0. diff --git a/src/field_impl.h b/src/field_impl.h index 989e9cdb2f..8cf6f22ce4 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -235,7 +235,7 @@ SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { static void secp256k1_fe_impl_clear(secp256k1_fe *a); SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { a->magnitude = 0; - a->normalized = 1; + a->normalized = 0; secp256k1_fe_impl_clear(a); SECP256K1_FE_VERIFY(a); diff --git a/src/group_impl.h b/src/group_impl.h index 2e096f4147..10aff43373 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -283,17 +283,17 @@ static void secp256k1_ge_table_set_globalz(size_t len, secp256k1_ge *a, const se static void secp256k1_gej_set_infinity(secp256k1_gej *r) { r->infinity = 1; - secp256k1_fe_clear(&r->x); - secp256k1_fe_clear(&r->y); - secp256k1_fe_clear(&r->z); + secp256k1_fe_set_int(&r->x, 0); + secp256k1_fe_set_int(&r->y, 0); + secp256k1_fe_set_int(&r->z, 0); SECP256K1_GEJ_VERIFY(r); } static void secp256k1_ge_set_infinity(secp256k1_ge *r) { r->infinity = 1; - secp256k1_fe_clear(&r->x); - secp256k1_fe_clear(&r->y); + secp256k1_fe_set_int(&r->x, 0); + secp256k1_fe_set_int(&r->y, 0); SECP256K1_GE_VERIFY(r); } diff --git a/src/testutil.h b/src/testutil.h index fc56854dd3..64b3bb41c0 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -34,7 +34,7 @@ static void testutil_random_fe_magnitude(secp256k1_fe *fe, int m) { if (n == 0) { return; } - secp256k1_fe_clear(&zero); + secp256k1_fe_set_int(&zero, 0); secp256k1_fe_negate(&zero, &zero, 0); secp256k1_fe_mul_int_unchecked(&zero, n - 1); secp256k1_fe_add(fe, &zero); From e3497bbf001f8e06dcc21d27fed173be77ef7136 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 8 Jun 2019 11:56:15 +0200 Subject: [PATCH 430/557] Separate between clearing memory and setting to zero in tests Co-Authored-By: isle2983 Co-Authored-By: Pieter Wuille --- src/bench_ecmult.c | 2 +- src/tests.c | 13 ++++++------- 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/src/bench_ecmult.c b/src/bench_ecmult.c index 7dc52ad87b..3974af75f4 100644 --- a/src/bench_ecmult.c +++ b/src/bench_ecmult.c @@ -71,7 +71,7 @@ static void bench_ecmult_teardown_helper(bench_data* data, size_t* seckey_offset secp256k1_scalar sum_scalars; secp256k1_gej_set_infinity(&sum_output); - secp256k1_scalar_clear(&sum_scalars); + secp256k1_scalar_set_int(&sum_scalars, 0); for (i = 0; i < iters; ++i) { secp256k1_gej_add_var(&sum_output, &sum_output, &data->output[i], NULL); if (scalar_gen_offset != NULL) { diff --git a/src/tests.c b/src/tests.c index dba4097b1a..270b1c83ec 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3671,8 +3671,7 @@ static void test_ge(void) { secp256k1_fe zfi2, zfi3; secp256k1_gej_set_infinity(&gej[0]); - secp256k1_ge_clear(&ge[0]); - secp256k1_ge_set_gej_var(&ge[0], &gej[0]); + secp256k1_ge_set_infinity(&ge[0]); for (i = 0; i < runs; i++) { int j, k; secp256k1_ge g; @@ -4797,12 +4796,12 @@ static void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi testutil_random_ge_test(&pt[ncount]); } - secp256k1_scalar_clear(&sc[0]); + secp256k1_scalar_set_int(&sc[0], 0); CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 20)); - secp256k1_scalar_clear(&sc[1]); - secp256k1_scalar_clear(&sc[2]); - secp256k1_scalar_clear(&sc[3]); - secp256k1_scalar_clear(&sc[4]); + secp256k1_scalar_set_int(&sc[1], 0); + secp256k1_scalar_set_int(&sc[2], 0); + secp256k1_scalar_set_int(&sc[3], 0); + secp256k1_scalar_set_int(&sc[4], 0); CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 6)); CHECK(ecmult_multi(&CTX->error_callback, scratch, &r, &secp256k1_scalar_zero, ecmult_multi_callback, &data, 5)); CHECK(secp256k1_gej_is_infinity(&r)); From 9bb368d146683aa9b44645f1b75a0ed230df97e9 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 8 Jun 2019 13:54:14 +0200 Subject: [PATCH 431/557] Use secp256k1_memclear() to clear stack memory instead of memset() All of the invocations of secp256k1_memclear() operate on stack memory and happen after the function is done with the memory object. This commit replaces existing memset() invocations and also adds secp256k1_memclear() to code locations where clearing was missing; there is no guarantee that this commit covers all code locations where clearing is necessary. Co-Authored-By: isle2983 --- src/ecmult_gen_impl.h | 8 ++++---- src/hash_impl.h | 11 ++++++----- src/modules/ecdh/main_impl.h | 5 +++-- src/modules/ellswift/main_impl.h | 2 +- src/modules/musig/session_impl.h | 10 +++++----- src/modules/schnorrsig/main_impl.h | 2 +- src/secp256k1.c | 4 ++-- src/util.h | 2 +- 8 files changed, 23 insertions(+), 21 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 2fbf623ca3..6903cd1bb8 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -277,8 +277,8 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 /* Cleanup. */ secp256k1_fe_clear(&neg); secp256k1_ge_clear(&add); - memset(&adds, 0, sizeof(adds)); - memset(&recoded, 0, sizeof(recoded)); + secp256k1_memclear(&adds, sizeof(adds)); + secp256k1_memclear(&recoded, sizeof(recoded)); } /* Setup blinding values for secp256k1_ecmult_gen. */ @@ -310,7 +310,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const VERIFY_CHECK(seed32 != NULL); memcpy(keydata + 32, seed32, 32); secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, 64); - memset(keydata, 0, sizeof(keydata)); + secp256k1_memclear(keydata, sizeof(keydata)); /* Compute projective blinding factor (cannot be 0). */ secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); @@ -325,13 +325,13 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const * which secp256k1_gej_add_ge cannot handle. */ secp256k1_scalar_cmov(&b, &secp256k1_scalar_one, secp256k1_scalar_is_zero(&b)); secp256k1_rfc6979_hmac_sha256_finalize(&rng); - memset(nonce32, 0, 32); secp256k1_ecmult_gen(ctx, &gb, &b); secp256k1_scalar_negate(&b, &b); secp256k1_scalar_add(&ctx->scalar_offset, &b, &diff); secp256k1_ge_set_gej(&ctx->ge_offset, &gb); /* Clean up. */ + secp256k1_memclear(nonce32, sizeof(nonce32)); secp256k1_scalar_clear(&b); secp256k1_gej_clear(&gb); secp256k1_fe_clear(&f); diff --git a/src/hash_impl.h b/src/hash_impl.h index 89f75ace74..49393c6750 100644 --- a/src/hash_impl.h +++ b/src/hash_impl.h @@ -156,6 +156,9 @@ static void secp256k1_sha256_finalize(secp256k1_sha256 *hash, unsigned char *out secp256k1_write_be32(&out32[4*i], hash->s[i]); hash->s[i] = 0; } + + secp256k1_memclear(sizedesc, sizeof(sizedesc)); + secp256k1_memclear(hash, sizeof(secp256k1_sha256)); } /* Initializes a sha256 struct and writes the 64 byte string @@ -196,7 +199,7 @@ static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const rkey[n] ^= 0x5c ^ 0x36; } secp256k1_sha256_write(&hash->inner, rkey, sizeof(rkey)); - memset(rkey, 0, sizeof(rkey)); + secp256k1_memclear(rkey, sizeof(rkey)); } static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256 *hash, const unsigned char *data, size_t size) { @@ -207,7 +210,7 @@ static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned unsigned char temp[32]; secp256k1_sha256_finalize(&hash->inner, temp); secp256k1_sha256_write(&hash->outer, temp, 32); - memset(temp, 0, 32); + secp256k1_memclear(temp, sizeof(temp)); secp256k1_sha256_finalize(&hash->outer, out32); } @@ -274,9 +277,7 @@ static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 } static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256 *rng) { - memset(rng->k, 0, 32); - memset(rng->v, 0, 32); - rng->retry = 0; + secp256k1_memclear(rng, sizeof(secp256k1_rfc6979_hmac_sha256)); } #undef Round diff --git a/src/modules/ecdh/main_impl.h b/src/modules/ecdh/main_impl.h index 82b082a9f0..9286f70f35 100644 --- a/src/modules/ecdh/main_impl.h +++ b/src/modules/ecdh/main_impl.h @@ -61,9 +61,10 @@ int secp256k1_ecdh(const secp256k1_context* ctx, unsigned char *output, const se ret = hashfp(output, x, y, data); - memset(x, 0, 32); - memset(y, 0, 32); + secp256k1_memclear(x, sizeof(x)); + secp256k1_memclear(y, sizeof(y)); secp256k1_scalar_clear(&s); + secp256k1_ge_clear(&pt); return !!ret & !overflow; } diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index b54ec08a22..78e850048a 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -580,7 +580,7 @@ int secp256k1_ellswift_xdh(const secp256k1_context *ctx, unsigned char *output, /* Invoke hasher */ ret = hashfp(output, sx, ell_a64, ell_b64, data); - memset(sx, 0, 32); + secp256k1_memclear(sx, sizeof(sx)); secp256k1_fe_clear(&px); secp256k1_scalar_clear(&s); diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index 2715b09d57..e22d1a5451 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -385,11 +385,11 @@ static void secp256k1_nonce_function_musig(secp256k1_scalar *k, const unsigned c secp256k1_scalar_set_b32(&k[i], buf, NULL); /* Attempt to erase secret data */ - memset(buf, 0, sizeof(buf)); - memset(&sha_tmp, 0, sizeof(sha_tmp)); + secp256k1_memclear(buf, sizeof(buf)); + secp256k1_memclear(&sha_tmp, sizeof(sha_tmp)); } - memset(rand, 0, sizeof(rand)); - memset(&sha, 0, sizeof(sha)); + secp256k1_memclear(rand, sizeof(rand)); + secp256k1_memclear(&sha, sizeof(sha)); } int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, const unsigned char *input_nonce, const unsigned char *seckey, const secp256k1_pubkey *pubkey, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { @@ -509,7 +509,7 @@ int secp256k1_musig_nonce_gen_counter(const secp256k1_context* ctx, secp256k1_mu if (!secp256k1_musig_nonce_gen_internal(ctx, secnonce, pubnonce, buf, seckey, &pubkey, msg32, keyagg_cache, extra_input32)) { return 0; } - memset(seckey, 0, sizeof(seckey)); + secp256k1_memclear(seckey, sizeof(seckey)); return 1; } diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 57f7eadd3c..783714fec7 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -187,7 +187,7 @@ static int secp256k1_schnorrsig_sign_internal(const secp256k1_context* ctx, unsi secp256k1_memczero(sig64, 64, !ret); secp256k1_scalar_clear(&k); secp256k1_scalar_clear(&sk); - memset(seckey, 0, sizeof(seckey)); + secp256k1_memclear(seckey, sizeof(seckey)); return ret; } diff --git a/src/secp256k1.c b/src/secp256k1.c index 93b7b459a3..f4e83dc2cc 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -494,7 +494,7 @@ static int nonce_function_rfc6979(unsigned char *nonce32, const unsigned char *m buffer_append(keydata, &offset, algo16, 16); } secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, offset); - memset(keydata, 0, sizeof(keydata)); + secp256k1_memclear(keydata, sizeof(keydata)); for (i = 0; i <= counter; i++) { secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); } @@ -548,7 +548,7 @@ static int secp256k1_ecdsa_sign_inner(const secp256k1_context* ctx, secp256k1_sc * seckey. As a result is_sec_valid is included in ret only after ret was * used as a branching variable. */ ret &= is_sec_valid; - memset(nonce32, 0, 32); + secp256k1_memclear(nonce32, sizeof(nonce32)); secp256k1_scalar_clear(&msg); secp256k1_scalar_clear(&non); secp256k1_scalar_clear(&sec); diff --git a/src/util.h b/src/util.h index c2add8acf9..2605141d05 100644 --- a/src/util.h +++ b/src/util.h @@ -285,7 +285,7 @@ static SECP256K1_INLINE int secp256k1_is_zero_array(const unsigned char *s, size } ret = (acc == 0); /* acc may contain secret values. Try to explicitly clear it. */ - acc = 0; + secp256k1_memclear(&acc, sizeof(acc)); return ret; } From 97c57f42ba8aca51479d23874b7608b9500a5bc9 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 8 Jun 2019 11:29:49 +0200 Subject: [PATCH 432/557] Implement various _clear() functions with secp256k1_memclear() --- src/field.h | 1 - src/field_10x26_impl.h | 7 ------- src/field_5x52_impl.h | 7 ------- src/field_impl.h | 13 ++++--------- src/group_impl.h | 13 ++----------- src/scalar_4x64_impl.h | 7 ------- src/scalar_8x32_impl.h | 11 ----------- src/scalar_impl.h | 4 ++++ src/scalar_low_impl.h | 2 -- 9 files changed, 10 insertions(+), 55 deletions(-) diff --git a/src/field.h b/src/field.h index 9599030991..1f6ba7460f 100644 --- a/src/field.h +++ b/src/field.h @@ -81,7 +81,6 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST( # define secp256k1_fe_normalizes_to_zero secp256k1_fe_impl_normalizes_to_zero # define secp256k1_fe_normalizes_to_zero_var secp256k1_fe_impl_normalizes_to_zero_var # define secp256k1_fe_set_int secp256k1_fe_impl_set_int -# define secp256k1_fe_clear secp256k1_fe_impl_clear # define secp256k1_fe_is_zero secp256k1_fe_impl_is_zero # define secp256k1_fe_is_odd secp256k1_fe_impl_is_odd # define secp256k1_fe_cmp_var secp256k1_fe_impl_cmp_var diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h index 666068c712..ea14c27318 100644 --- a/src/field_10x26_impl.h +++ b/src/field_10x26_impl.h @@ -270,13 +270,6 @@ SECP256K1_INLINE static int secp256k1_fe_impl_is_odd(const secp256k1_fe *a) { return a->n[0] & 1; } -SECP256K1_INLINE static void secp256k1_fe_impl_clear(secp256k1_fe *a) { - int i; - for (i=0; i<10; i++) { - a->n[i] = 0; - } -} - static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { int i; for (i = 9; i >= 0; i--) { diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h index 76031f755e..46dca6b981 100644 --- a/src/field_5x52_impl.h +++ b/src/field_5x52_impl.h @@ -212,13 +212,6 @@ SECP256K1_INLINE static int secp256k1_fe_impl_is_odd(const secp256k1_fe *a) { return a->n[0] & 1; } -SECP256K1_INLINE static void secp256k1_fe_impl_clear(secp256k1_fe *a) { - int i; - for (i=0; i<5; i++) { - a->n[i] = 0; - } -} - static int secp256k1_fe_impl_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b) { int i; for (i = 4; i >= 0; i--) { diff --git a/src/field_impl.h b/src/field_impl.h index 8cf6f22ce4..896507a3a4 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -18,6 +18,10 @@ #error "Please select wide multiplication implementation" #endif +SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { + secp256k1_memclear(a, sizeof(secp256k1_fe)); +} + SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { secp256k1_fe na; SECP256K1_FE_VERIFY(a); @@ -232,15 +236,6 @@ SECP256K1_INLINE static void secp256k1_fe_add_int(secp256k1_fe *r, int a) { SECP256K1_FE_VERIFY(r); } -static void secp256k1_fe_impl_clear(secp256k1_fe *a); -SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { - a->magnitude = 0; - a->normalized = 0; - secp256k1_fe_impl_clear(a); - - SECP256K1_FE_VERIFY(a); -} - static int secp256k1_fe_impl_is_zero(const secp256k1_fe *a); SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe *a) { SECP256K1_FE_VERIFY(a); diff --git a/src/group_impl.h b/src/group_impl.h index 10aff43373..c668fb2401 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -299,20 +299,11 @@ static void secp256k1_ge_set_infinity(secp256k1_ge *r) { } static void secp256k1_gej_clear(secp256k1_gej *r) { - r->infinity = 0; - secp256k1_fe_clear(&r->x); - secp256k1_fe_clear(&r->y); - secp256k1_fe_clear(&r->z); - - SECP256K1_GEJ_VERIFY(r); + secp256k1_memclear(r, sizeof(secp256k1_gej)); } static void secp256k1_ge_clear(secp256k1_ge *r) { - r->infinity = 0; - secp256k1_fe_clear(&r->x); - secp256k1_fe_clear(&r->y); - - SECP256K1_GE_VERIFY(r); + secp256k1_memclear(r, sizeof(secp256k1_ge)); } static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd) { diff --git a/src/scalar_4x64_impl.h b/src/scalar_4x64_impl.h index 4aaec85b99..807b9b70ab 100644 --- a/src/scalar_4x64_impl.h +++ b/src/scalar_4x64_impl.h @@ -29,13 +29,6 @@ #define SECP256K1_N_H_2 ((uint64_t)0xFFFFFFFFFFFFFFFFULL) #define SECP256K1_N_H_3 ((uint64_t)0x7FFFFFFFFFFFFFFFULL) -SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { - r->d[0] = 0; - r->d[1] = 0; - r->d[2] = 0; - r->d[3] = 0; -} - SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v) { r->d[0] = v; r->d[1] = 0; diff --git a/src/scalar_8x32_impl.h b/src/scalar_8x32_impl.h index c7d87b17d8..2610496052 100644 --- a/src/scalar_8x32_impl.h +++ b/src/scalar_8x32_impl.h @@ -38,17 +38,6 @@ #define SECP256K1_N_H_6 ((uint32_t)0xFFFFFFFFUL) #define SECP256K1_N_H_7 ((uint32_t)0x7FFFFFFFUL) -SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { - r->d[0] = 0; - r->d[1] = 0; - r->d[2] = 0; - r->d[3] = 0; - r->d[4] = 0; - r->d[5] = 0; - r->d[6] = 0; - r->d[7] = 0; -} - SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v) { r->d[0] = v; r->d[1] = 0; diff --git a/src/scalar_impl.h b/src/scalar_impl.h index 972d8041b0..dbb5b0a01c 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -27,6 +27,10 @@ static const secp256k1_scalar secp256k1_scalar_one = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 1); static const secp256k1_scalar secp256k1_scalar_zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); +SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { + secp256k1_memclear(r, sizeof(secp256k1_scalar)); +} + static int secp256k1_scalar_set_b32_seckey(secp256k1_scalar *r, const unsigned char *bin) { int overflow; secp256k1_scalar_set_b32(r, bin, &overflow); diff --git a/src/scalar_low_impl.h b/src/scalar_low_impl.h index 45d2f3e460..84e1a380a3 100644 --- a/src/scalar_low_impl.h +++ b/src/scalar_low_impl.h @@ -19,8 +19,6 @@ SECP256K1_INLINE static int secp256k1_scalar_is_even(const secp256k1_scalar *a) return !(*a & 1); } -SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { *r = 0; } - SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar *r, unsigned int v) { *r = v % EXHAUSTIVE_TEST_ORDER; From 99cc9fd6d01db1165d08b88d45c0de85a59b70cf Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Sat, 8 Jun 2019 13:21:52 +0200 Subject: [PATCH 433/557] Don't rely on memset to set signed integers to 0 --- src/ecmult_impl.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 8f58455209..0b53b3fcb9 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -171,7 +171,9 @@ static int secp256k1_ecmult_wnaf(int *wnaf, int len, const secp256k1_scalar *a, VERIFY_CHECK(a != NULL); VERIFY_CHECK(2 <= w && w <= 31); - memset(wnaf, 0, len * sizeof(wnaf[0])); + for (bit = 0; bit < len; bit++) { + wnaf[bit] = 0; + } s = *a; if (secp256k1_scalar_get_bits_limb32(&s, 255, 1)) { @@ -179,6 +181,7 @@ static int secp256k1_ecmult_wnaf(int *wnaf, int len, const secp256k1_scalar *a, sign = -1; } + bit = 0; while (bit < len) { int now; int word; From 349e6ab916b3dd106fea9b56dacec065df5fa457 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 27 Apr 2020 18:55:36 +0200 Subject: [PATCH 434/557] Introduce separate _clear functions for hash module This gives the caller more control about whether the state should be cleaned (= should be considered secret). Moreover, it gives the caller the possibility to clean a hash struct without finalizing it. --- src/ecmult_gen_impl.h | 1 + src/hash.h | 3 +++ src/hash_impl.h | 16 ++++++++++++---- src/modules/ecdh/main_impl.h | 1 + src/modules/ellswift/main_impl.h | 2 ++ src/modules/musig/session_impl.h | 4 ++-- src/modules/schnorrsig/main_impl.h | 1 + src/secp256k1.c | 5 ++++- 8 files changed, 26 insertions(+), 7 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 6903cd1bb8..070a121308 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -335,6 +335,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const secp256k1_scalar_clear(&b); secp256k1_gej_clear(&gb); secp256k1_fe_clear(&f); + secp256k1_rfc6979_hmac_sha256_clear(&rng); } #endif /* SECP256K1_ECMULT_GEN_IMPL_H */ diff --git a/src/hash.h b/src/hash.h index 4e0384cfbf..6d903ca7e0 100644 --- a/src/hash.h +++ b/src/hash.h @@ -19,6 +19,7 @@ typedef struct { static void secp256k1_sha256_initialize(secp256k1_sha256 *hash); static void secp256k1_sha256_write(secp256k1_sha256 *hash, const unsigned char *data, size_t size); static void secp256k1_sha256_finalize(secp256k1_sha256 *hash, unsigned char *out32); +static void secp256k1_sha256_clear(secp256k1_sha256 *hash); typedef struct { secp256k1_sha256 inner, outer; @@ -27,6 +28,7 @@ typedef struct { static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const unsigned char *key, size_t size); static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256 *hash, const unsigned char *data, size_t size); static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned char *out32); +static void secp256k1_hmac_sha256_clear(secp256k1_hmac_sha256 *hash); typedef struct { unsigned char v[32]; @@ -37,5 +39,6 @@ typedef struct { static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen); static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 *rng, unsigned char *out, size_t outlen); static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256 *rng); +static void secp256k1_rfc6979_hmac_sha256_clear(secp256k1_rfc6979_hmac_sha256 *rng); #endif /* SECP256K1_HASH_H */ diff --git a/src/hash_impl.h b/src/hash_impl.h index 49393c6750..956e0ea48b 100644 --- a/src/hash_impl.h +++ b/src/hash_impl.h @@ -156,9 +156,6 @@ static void secp256k1_sha256_finalize(secp256k1_sha256 *hash, unsigned char *out secp256k1_write_be32(&out32[4*i], hash->s[i]); hash->s[i] = 0; } - - secp256k1_memclear(sizedesc, sizeof(sizedesc)); - secp256k1_memclear(hash, sizeof(secp256k1_sha256)); } /* Initializes a sha256 struct and writes the 64 byte string @@ -174,6 +171,10 @@ static void secp256k1_sha256_initialize_tagged(secp256k1_sha256 *hash, const uns secp256k1_sha256_write(hash, buf, 32); } +static void secp256k1_sha256_clear(secp256k1_sha256 *hash) { + secp256k1_memclear(hash, sizeof(*hash)); +} + static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const unsigned char *key, size_t keylen) { size_t n; unsigned char rkey[64]; @@ -214,6 +215,9 @@ static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned secp256k1_sha256_finalize(&hash->outer, out32); } +static void secp256k1_hmac_sha256_clear(secp256k1_hmac_sha256 *hash) { + secp256k1_memclear(hash, sizeof(*hash)); +} static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen) { secp256k1_hmac_sha256 hmac; @@ -277,7 +281,11 @@ static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 } static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256 *rng) { - secp256k1_memclear(rng, sizeof(secp256k1_rfc6979_hmac_sha256)); + (void) rng; +} + +static void secp256k1_rfc6979_hmac_sha256_clear(secp256k1_rfc6979_hmac_sha256 *rng) { + secp256k1_memclear(rng, sizeof(*rng)); } #undef Round diff --git a/src/modules/ecdh/main_impl.h b/src/modules/ecdh/main_impl.h index 9286f70f35..a3dc18332b 100644 --- a/src/modules/ecdh/main_impl.h +++ b/src/modules/ecdh/main_impl.h @@ -19,6 +19,7 @@ static int ecdh_hash_function_sha256(unsigned char *output, const unsigned char secp256k1_sha256_write(&sha, &version, 1); secp256k1_sha256_write(&sha, x32, 32); secp256k1_sha256_finalize(&sha, output); + secp256k1_sha256_clear(&sha); return 1; } diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index 78e850048a..745a969139 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -510,6 +510,7 @@ static int ellswift_xdh_hash_function_prefix(unsigned char *output, const unsign secp256k1_sha256_write(&sha, ell_b64, 64); secp256k1_sha256_write(&sha, x32, 32); secp256k1_sha256_finalize(&sha, output); + secp256k1_sha256_clear(&sha); return 1; } @@ -539,6 +540,7 @@ static int ellswift_xdh_hash_function_bip324(unsigned char* output, const unsign secp256k1_sha256_write(&sha, ell_b64, 64); secp256k1_sha256_write(&sha, x32, 32); secp256k1_sha256_finalize(&sha, output); + secp256k1_sha256_clear(&sha); return 1; } diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index e22d1a5451..d646ec11e0 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -386,10 +386,10 @@ static void secp256k1_nonce_function_musig(secp256k1_scalar *k, const unsigned c /* Attempt to erase secret data */ secp256k1_memclear(buf, sizeof(buf)); - secp256k1_memclear(&sha_tmp, sizeof(sha_tmp)); + secp256k1_sha256_clear(&sha_tmp); } secp256k1_memclear(rand, sizeof(rand)); - secp256k1_memclear(&sha, sizeof(sha)); + secp256k1_sha256_clear(&sha); } int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, const unsigned char *input_nonce, const unsigned char *seckey, const secp256k1_pubkey *pubkey, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 783714fec7..261f4e4e27 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -93,6 +93,7 @@ static int nonce_function_bip340(unsigned char *nonce32, const unsigned char *ms secp256k1_sha256_write(&sha, xonly_pk32, 32); secp256k1_sha256_write(&sha, msg, msglen); secp256k1_sha256_finalize(&sha, nonce32); + secp256k1_sha256_clear(&sha); return 1; } diff --git a/src/secp256k1.c b/src/secp256k1.c index f4e83dc2cc..00c7285a0e 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -494,11 +494,13 @@ static int nonce_function_rfc6979(unsigned char *nonce32, const unsigned char *m buffer_append(keydata, &offset, algo16, 16); } secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, offset); - secp256k1_memclear(keydata, sizeof(keydata)); for (i = 0; i <= counter; i++) { secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); } secp256k1_rfc6979_hmac_sha256_finalize(&rng); + + secp256k1_memclear(keydata, sizeof(keydata)); + secp256k1_rfc6979_hmac_sha256_clear(&rng); return 1; } @@ -799,6 +801,7 @@ int secp256k1_tagged_sha256(const secp256k1_context* ctx, unsigned char *hash32, secp256k1_sha256_initialize_tagged(&sha, tag, taglen); secp256k1_sha256_write(&sha, msg, msglen); secp256k1_sha256_finalize(&sha, hash32); + secp256k1_sha256_clear(&sha); return 1; } From 765ef53335a3e0fafdafe1e757f6fe0789f2797f Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 11 Oct 2024 18:00:59 +0200 Subject: [PATCH 435/557] Clear _gej instances after point multiplication to avoid potential leaks Quoting sipa (see https://github.com/bitcoin-core/secp256k1/pull/1479#discussion_r1790079414): "When performing an EC multiplication A = aG for secret a, the resulting _affine_ coordinates of A are presumed to not leak information about a (ECDLP), but the same is not necessarily true for the Jacobian coordinates that come out of our multiplication algorithm." For the ECDH point multiplication result, the result in Jacobi coordinates should be cleared not only to avoid leaking the scalar, but even more so as it's a representation of the resulting shared secret. --- src/modules/ecdh/main_impl.h | 1 + src/modules/musig/session_impl.h | 1 + src/modules/schnorrsig/main_impl.h | 1 + src/secp256k1.c | 1 + 4 files changed, 4 insertions(+) diff --git a/src/modules/ecdh/main_impl.h b/src/modules/ecdh/main_impl.h index a3dc18332b..842b5359e3 100644 --- a/src/modules/ecdh/main_impl.h +++ b/src/modules/ecdh/main_impl.h @@ -66,6 +66,7 @@ int secp256k1_ecdh(const secp256k1_context* ctx, unsigned char *output, const se secp256k1_memclear(y, sizeof(y)); secp256k1_scalar_clear(&s); secp256k1_ge_clear(&pt); + secp256k1_gej_clear(&res); return !!ret & !overflow; } diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index d646ec11e0..2733e47d6c 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -450,6 +450,7 @@ int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_m secp256k1_ge_set_gej(&nonce_pts[i], &nonce_ptj); secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts)); secp256k1_scalar_clear(&k[i]); + secp256k1_gej_clear(&nonce_ptj); } /* None of the nonce_pts will be infinity because k != 0 with overwhelming * probability */ diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 261f4e4e27..82bba2f597 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -189,6 +189,7 @@ static int secp256k1_schnorrsig_sign_internal(const secp256k1_context* ctx, unsi secp256k1_scalar_clear(&k); secp256k1_scalar_clear(&sk); secp256k1_memclear(seckey, sizeof(seckey)); + secp256k1_gej_clear(&rj); return ret; } diff --git a/src/secp256k1.c b/src/secp256k1.c index 00c7285a0e..a248519dfd 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -597,6 +597,7 @@ static int secp256k1_ec_pubkey_create_helper(const secp256k1_ecmult_gen_context secp256k1_ecmult_gen(ecmult_gen_ctx, &pj, seckey_scalar); secp256k1_ge_set_gej(p, &pj); + secp256k1_gej_clear(&pj); return ret; } From 0f73caf7c62564dd4a28cdf682ea9644d1be0ef4 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 30 Oct 2024 14:30:55 +0000 Subject: [PATCH 436/557] test, ci: Lower default iteration count to 16 The number of test iterations in the CI remains unchanged. Additionally, the minimum iteration counts to enable the `test_ecmult_constants_2bit` test is adjusted from 35 to 16, so it is run by default. --- .cirrus.yml | 2 +- .github/workflows/ci.yml | 2 +- src/tests.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 0c1e01dc95..9a9ca8e714 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -24,7 +24,7 @@ env: SCHNORRSIG: no ELLSWIFT: no ### test options - SECP256K1_TEST_ITERS: + SECP256K1_TEST_ITERS: 64 BENCH: yes SECP256K1_BENCH_ITERS: 2 CTIMETESTS: yes diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 0fc104d29b..77815ceb5e 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -35,7 +35,7 @@ env: SCHNORRSIG: 'no' ELLSWIFT: 'no' ### test options - SECP256K1_TEST_ITERS: + SECP256K1_TEST_ITERS: 64 BENCH: 'yes' SECP256K1_BENCH_ITERS: 2 CTIMETESTS: 'yes' diff --git a/src/tests.c b/src/tests.c index 70c15f870b..bde10161af 100644 --- a/src/tests.c +++ b/src/tests.c @@ -37,7 +37,7 @@ #define CONDITIONAL_TEST(cnt, nam) if (COUNT < (cnt)) { printf("Skipping %s (iteration count too low)\n", nam); } else -static int COUNT = 64; +static int COUNT = 16; static secp256k1_context *CTX = NULL; static secp256k1_context *STATIC_CTX = NULL; @@ -5515,7 +5515,7 @@ static void run_ecmult_constants(void) { test_ecmult_constants_sha(1607366309u, 2048, expected32_8bit8); } - CONDITIONAL_TEST(35, "test_ecmult_constants_2bit") { + CONDITIONAL_TEST(16, "test_ecmult_constants_2bit") { test_ecmult_constants_2bit(); } } From 694342fdb71722b31dd4b6bc7241b992fdf6f492 Mon Sep 17 00:00:00 2001 From: Ava Chow Date: Thu, 31 Oct 2024 13:55:52 -0400 Subject: [PATCH 437/557] Name public API structs --- include/secp256k1.h | 4 ++-- include/secp256k1_extrakeys.h | 4 ++-- include/secp256k1_musig.h | 12 ++++++------ include/secp256k1_recovery.h | 2 +- include/secp256k1_schnorrsig.h | 2 +- 5 files changed, 12 insertions(+), 12 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index b0c5e63404..c6e9417f05 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -58,7 +58,7 @@ typedef struct secp256k1_context_struct secp256k1_context; * use secp256k1_ec_pubkey_serialize and secp256k1_ec_pubkey_parse. To * compare keys, use secp256k1_ec_pubkey_cmp. */ -typedef struct { +typedef struct secp256k1_pubkey { unsigned char data[64]; } secp256k1_pubkey; @@ -71,7 +71,7 @@ typedef struct { * comparison, use the secp256k1_ecdsa_signature_serialize_* and * secp256k1_ecdsa_signature_parse_* functions. */ -typedef struct { +typedef struct secp256k1_ecdsa_signature { unsigned char data[64]; } secp256k1_ecdsa_signature; diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index 13acb0325f..48c98693cf 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -19,7 +19,7 @@ extern "C" { * use secp256k1_xonly_pubkey_serialize and secp256k1_xonly_pubkey_parse. To * compare keys, use secp256k1_xonly_pubkey_cmp. */ -typedef struct { +typedef struct secp256k1_xonly_pubkey { unsigned char data[64]; } secp256k1_xonly_pubkey; @@ -30,7 +30,7 @@ typedef struct { * guaranteed to be portable between different platforms or versions. It is * however guaranteed to be 96 bytes in size, and can be safely copied/moved. */ -typedef struct { +typedef struct secp256k1_keypair { unsigned char data[96]; } secp256k1_keypair; diff --git a/include/secp256k1_musig.h b/include/secp256k1_musig.h index 53501814e1..11b8f08c88 100644 --- a/include/secp256k1_musig.h +++ b/include/secp256k1_musig.h @@ -40,7 +40,7 @@ extern "C" { * Guaranteed to be 197 bytes in size. No serialization and parsing functions * (yet). */ -typedef struct { +typedef struct secp256k1_musig_keyagg_cache { unsigned char data[197]; } secp256k1_musig_keyagg_cache; @@ -56,7 +56,7 @@ typedef struct { * Copying this data structure can result in nonce reuse which will leak the * secret signing key. */ -typedef struct { +typedef struct secp256k1_musig_secnonce { unsigned char data[132]; } secp256k1_musig_secnonce; @@ -65,7 +65,7 @@ typedef struct { * Guaranteed to be 132 bytes in size. Serialized and parsed with * `musig_pubnonce_serialize` and `musig_pubnonce_parse`. */ -typedef struct { +typedef struct secp256k1_musig_pubnonce { unsigned char data[132]; } secp256k1_musig_pubnonce; @@ -74,7 +74,7 @@ typedef struct { * Guaranteed to be 132 bytes in size. Serialized and parsed with * `musig_aggnonce_serialize` and `musig_aggnonce_parse`. */ -typedef struct { +typedef struct secp256k1_musig_aggnonce { unsigned char data[132]; } secp256k1_musig_aggnonce; @@ -84,7 +84,7 @@ typedef struct { * be secure. Guaranteed to be 133 bytes in size. No serialization and parsing * functions (yet). */ -typedef struct { +typedef struct secp256k1_musig_session { unsigned char data[133]; } secp256k1_musig_session; @@ -93,7 +93,7 @@ typedef struct { * Guaranteed to be 36 bytes in size. Serialized and parsed with * `musig_partial_sig_serialize` and `musig_partial_sig_parse`. */ -typedef struct { +typedef struct secp256k1_musig_partial_sig { unsigned char data[36]; } secp256k1_musig_partial_sig; diff --git a/include/secp256k1_recovery.h b/include/secp256k1_recovery.h index 78a3eee05c..93a2e4ccbd 100644 --- a/include/secp256k1_recovery.h +++ b/include/secp256k1_recovery.h @@ -21,7 +21,7 @@ extern "C" { * recoverability) will have identical representation, so they can be * memcmp'ed. */ -typedef struct { +typedef struct secp256k1_ecdsa_recoverable_signature { unsigned char data[65]; } secp256k1_ecdsa_recoverable_signature; diff --git a/include/secp256k1_schnorrsig.h b/include/secp256k1_schnorrsig.h index 23163de2fb..013d4ee73d 100644 --- a/include/secp256k1_schnorrsig.h +++ b/include/secp256k1_schnorrsig.h @@ -79,7 +79,7 @@ SECP256K1_API const secp256k1_nonce_function_hardened secp256k1_nonce_function_b * secp256k1_nonce_function_bip340 is used, then ndata must be a * pointer to 32-byte auxiliary randomness as per BIP-340. */ -typedef struct { +typedef struct secp256k1_schnorrsig_extraparams { unsigned char magic[4]; secp256k1_nonce_function_hardened noncefp; void *ndata; From d3082ddeadef755d24523b2d4ae6b792138e847b Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 8 Oct 2024 13:42:32 +0200 Subject: [PATCH 438/557] group: Add constant-time secp256k1_ge_set_all_gej This is a dump mechanical translation of secp256k1_ge_set_all_gej_var that assumes that inputs are not infinity. --- src/group.h | 6 +++++- src/group_impl.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++ src/tests.c | 15 ++++++++++++++- 3 files changed, 65 insertions(+), 2 deletions(-) diff --git a/src/group.h b/src/group.h index 992ff5c98c..05ae0d203c 100644 --- a/src/group.h +++ b/src/group.h @@ -80,7 +80,11 @@ static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a); /** Set a group element equal to another which is given in jacobian coordinates. */ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a); -/** Set a batch of group elements equal to the inputs given in jacobian coordinates */ +/** Set group elements r[0:len] (affine) equal to group elements a[0:len] (jacobian). + * None of the group elements in a[0:len] may be infinity. Constant time. */ +static void secp256k1_ge_set_all_gej(secp256k1_ge *r, const secp256k1_gej *a, size_t len); + +/** Set group elements r[0:len] (affine) equal to group elements a[0:len] (jacobian). */ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len); /** Bring a batch of inputs to the same global z "denominator", based on ratios between diff --git a/src/group_impl.h b/src/group_impl.h index 2e096f4147..2e612dfb0c 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -195,6 +195,52 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { SECP256K1_GE_VERIFY(r); } +static void secp256k1_ge_set_all_gej(secp256k1_ge *r, const secp256k1_gej *a, size_t len) { + secp256k1_fe u; + size_t i; + size_t last_i = SIZE_MAX; +#ifdef VERIFY + for (i = 0; i < len; i++) { + SECP256K1_GEJ_VERIFY(&a[i]); + VERIFY_CHECK(!secp256k1_gej_is_infinity(&a[i])); + } +#endif + + for (i = 0; i < len; i++) { + /* Use destination's x coordinates as scratch space */ + if (last_i == SIZE_MAX) { + r[i].x = a[i].z; + } else { + secp256k1_fe_mul(&r[i].x, &r[last_i].x, &a[i].z); + } + last_i = i; + } + if (last_i == SIZE_MAX) { + return; + } + secp256k1_fe_inv(&u, &r[last_i].x); + + i = last_i; + while (i > 0) { + i--; + secp256k1_fe_mul(&r[last_i].x, &r[i].x, &u); + secp256k1_fe_mul(&u, &u, &a[last_i].z); + last_i = i; + } + VERIFY_CHECK(!a[last_i].infinity); + r[last_i].x = u; + + for (i = 0; i < len; i++) { + secp256k1_ge_set_gej_zinv(&r[i], &a[i], &r[i].x); + } + +#ifdef VERIFY + for (i = 0; i < len; i++) { + SECP256K1_GE_VERIFY(&r[i]); + } +#endif +} + static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len) { secp256k1_fe u; size_t i; diff --git a/src/tests.c b/src/tests.c index dba4097b1a..61e7581506 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3822,14 +3822,27 @@ static void test_ge(void) { /* Test batch gej -> ge conversion without known z ratios. */ { + secp256k1_ge *ge_set_all_var = (secp256k1_ge *)checked_malloc(&CTX->error_callback, (4 * runs + 1) * sizeof(secp256k1_ge)); secp256k1_ge *ge_set_all = (secp256k1_ge *)checked_malloc(&CTX->error_callback, (4 * runs + 1) * sizeof(secp256k1_ge)); - secp256k1_ge_set_all_gej_var(ge_set_all, gej, 4 * runs + 1); + secp256k1_ge_set_all_gej_var(&ge_set_all_var[0], &gej[0], 4 * runs + 1); for (i = 0; i < 4 * runs + 1; i++) { + secp256k1_fe s; + testutil_random_fe_non_zero(&s); + secp256k1_gej_rescale(&gej[i], &s); + CHECK(secp256k1_gej_eq_ge_var(&gej[i], &ge_set_all_var[i])); + } + + /* Skip infinity at &gej[0]. */ + secp256k1_ge_set_all_gej(&ge_set_all[1], &gej[1], 4 * runs); + for (i = 1; i < 4 * runs + 1; i++) { secp256k1_fe s; testutil_random_fe_non_zero(&s); secp256k1_gej_rescale(&gej[i], &s); CHECK(secp256k1_gej_eq_ge_var(&gej[i], &ge_set_all[i])); + CHECK(secp256k1_ge_eq_var(&ge_set_all_var[i], &ge_set_all[i])); } + + free(ge_set_all_var); free(ge_set_all); } From 365f274ce3a18a876765e2a360685f6c35c347c2 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 8 Oct 2024 13:54:41 +0200 Subject: [PATCH 439/557] group: Simplify secp256k1_ge_set_all_gej No semantic changes. --- src/group_impl.h | 32 ++++++++++++-------------------- 1 file changed, 12 insertions(+), 20 deletions(-) diff --git a/src/group_impl.h b/src/group_impl.h index 2e612dfb0c..7035cafb58 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -198,7 +198,6 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) { static void secp256k1_ge_set_all_gej(secp256k1_ge *r, const secp256k1_gej *a, size_t len) { secp256k1_fe u; size_t i; - size_t last_i = SIZE_MAX; #ifdef VERIFY for (i = 0; i < len; i++) { SECP256K1_GEJ_VERIFY(&a[i]); @@ -206,29 +205,22 @@ static void secp256k1_ge_set_all_gej(secp256k1_ge *r, const secp256k1_gej *a, si } #endif - for (i = 0; i < len; i++) { - /* Use destination's x coordinates as scratch space */ - if (last_i == SIZE_MAX) { - r[i].x = a[i].z; - } else { - secp256k1_fe_mul(&r[i].x, &r[last_i].x, &a[i].z); - } - last_i = i; - } - if (last_i == SIZE_MAX) { + if (len == 0) { return; } - secp256k1_fe_inv(&u, &r[last_i].x); - i = last_i; - while (i > 0) { - i--; - secp256k1_fe_mul(&r[last_i].x, &r[i].x, &u); - secp256k1_fe_mul(&u, &u, &a[last_i].z); - last_i = i; + /* Use destination's x coordinates as scratch space */ + r[0].x = a[0].z; + for (i = 1; i < len; i++) { + secp256k1_fe_mul(&r[i].x, &r[i - 1].x, &a[i].z); } - VERIFY_CHECK(!a[last_i].infinity); - r[last_i].x = u; + secp256k1_fe_inv(&u, &r[len - 1].x); + + for (i = len - 1; i > 0; i--) { + secp256k1_fe_mul(&r[i].x, &r[i - 1].x, &u); + secp256k1_fe_mul(&u, &u, &a[i].z); + } + r[0].x = u; for (i = 0; i < len; i++) { secp256k1_ge_set_gej_zinv(&r[i], &a[i], &r[i].x); From 300aab1c056a05b2b4e289c0b9ac7a07c38cde5d Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 8 Oct 2024 13:57:27 +0200 Subject: [PATCH 440/557] tests: Improve _ge_set_all_gej(_var) tests --- src/tests.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/tests.c b/src/tests.c index 61e7581506..2d2c8e6eb5 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3842,6 +3842,17 @@ static void test_ge(void) { CHECK(secp256k1_ge_eq_var(&ge_set_all_var[i], &ge_set_all[i])); } + /* Test with an array of length 1. */ + secp256k1_ge_set_all_gej_var(ge_set_all_var, &gej[1], 1); + secp256k1_ge_set_all_gej(ge_set_all, &gej[1], 1); + CHECK(secp256k1_gej_eq_ge_var(&gej[1], &ge_set_all_var[1])); + CHECK(secp256k1_gej_eq_ge_var(&gej[1], &ge_set_all[1])); + CHECK(secp256k1_ge_eq_var(&ge_set_all_var[1], &ge_set_all[1])); + + /* Test with an array of length 0. */ + secp256k1_ge_set_all_gej_var(NULL, NULL, 0); + secp256k1_ge_set_all_gej(NULL, NULL, 0); + free(ge_set_all_var); free(ge_set_all); } From 64228a648fa137723e73c6e019378f58add18a1a Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 8 Oct 2024 13:59:05 +0200 Subject: [PATCH 441/557] musig: Use _ge_set_all_gej for own public nonces --- src/modules/musig/session_impl.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index fbdfd63508..b5d7c2217d 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -395,6 +395,7 @@ static void secp256k1_nonce_function_musig(secp256k1_scalar *k, const unsigned c int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, const unsigned char *input_nonce, const unsigned char *seckey, const secp256k1_pubkey *pubkey, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { secp256k1_scalar k[2]; secp256k1_ge nonce_pts[2]; + secp256k1_gej nonce_ptj[2]; int i; unsigned char pk_ser[33]; size_t pk_ser_len = sizeof(pk_ser); @@ -445,12 +446,13 @@ int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_m secp256k1_musig_secnonce_invalidate(ctx, secnonce, !ret); for (i = 0; i < 2; i++) { - secp256k1_gej nonce_ptj; - secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &nonce_ptj, &k[i]); - secp256k1_ge_set_gej(&nonce_pts[i], &nonce_ptj); - secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts[i])); + secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &nonce_ptj[i], &k[i]); secp256k1_scalar_clear(&k[i]); } + secp256k1_ge_set_all_gej(nonce_pts, nonce_ptj, 2); + for (i = 0; i < 2; i++) { + secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts[i])); + } /* None of the nonce_pts will be infinity because k != 0 with overwhelming * probability */ secp256k1_musig_pubnonce_save(pubnonce, nonce_pts); From 145868a84d28512fe0b3af83c1474b288261e720 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 1 Nov 2024 20:24:49 +0000 Subject: [PATCH 442/557] Do not export `secp256k1_musig_nonce_gen_internal` --- src/modules/musig/session_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index 1251b3788b..dde3808582 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -392,7 +392,7 @@ static void secp256k1_nonce_function_musig(secp256k1_scalar *k, const unsigned c secp256k1_sha256_clear(&sha); } -int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, const unsigned char *input_nonce, const unsigned char *seckey, const secp256k1_pubkey *pubkey, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { +static int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp256k1_musig_secnonce *secnonce, secp256k1_musig_pubnonce *pubnonce, const unsigned char *input_nonce, const unsigned char *seckey, const secp256k1_pubkey *pubkey, const unsigned char *msg32, const secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *extra_input32) { secp256k1_scalar k[2]; secp256k1_ge nonce_pts[2]; int i; From a306bb7e903fef32bc7a5ea0f8144955168c7fca Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 4 Nov 2024 14:08:27 +0000 Subject: [PATCH 443/557] tools: fix check-abi.sh after cmake out locations were changed --- tools/check-abi.sh | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/tools/check-abi.sh b/tools/check-abi.sh index 94a98831e1..601a64ba96 100755 --- a/tools/check-abi.sh +++ b/tools/check-abi.sh @@ -49,7 +49,14 @@ checkout_and_build() { -DSECP256K1_BUILD_CTIME_TESTS=OFF \ -DSECP256K1_BUILD_EXAMPLES=OFF cmake --build . -j "$(nproc)" - abi-dumper src/libsecp256k1.so -o ABI.dump -lver "$2" -public-headers ../include/ + # FIXME: Just set LIBPATH to lib/libsecp256k1.so once version 0.6.0 is + # released. + if [ -f "src/libsecp256k1.so" ]; then + LIBPATH="src/libsecp256k1.so" + else + LIBPATH="lib/libsecp256k1.so" + fi + abi-dumper $LIBPATH -o ABI.dump -lver "$2" -public-headers ../include/ cd "$_orig_dir" } From df2eceb2790fb63812955c1bd0ab9fe11c930584 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 4 Nov 2024 15:58:36 +0000 Subject: [PATCH 444/557] build: add ellswift.md and musig.md to release tarball --- Makefile.am | 1 + 1 file changed, 1 insertion(+) diff --git a/Makefile.am b/Makefile.am index a4c8d33dad..a95b4809d4 100644 --- a/Makefile.am +++ b/Makefile.am @@ -265,6 +265,7 @@ maintainer-clean-local: clean-testvectors ### Additional files to distribute EXTRA_DIST = autogen.sh CHANGELOG.md SECURITY.md EXTRA_DIST += doc/release-process.md doc/safegcd_implementation.md +EXTRA_DIST += doc/ellswift.md doc/musig.md EXTRA_DIST += examples/EXAMPLES_COPYING EXTRA_DIST += sage/gen_exhaustive_groups.sage EXTRA_DIST += sage/gen_split_lambda_constants.sage From 39d5dfd542a12bb1ad236c78e9fcc1f044998385 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 4 Nov 2024 13:45:03 +0000 Subject: [PATCH 445/557] release: prepare for 0.6.0 --- CHANGELOG.md | 16 +++++++++++++--- CMakeLists.txt | 8 ++++---- configure.ac | 12 ++++++------ 3 files changed, 23 insertions(+), 13 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 5026aab1f5..ee447c0c1c 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,16 +5,26 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.6.0] - 2024-11-04 #### Added - New module `musig` implements the MuSig2 multisignature scheme according to the [BIP 327 specification](https://github.com/bitcoin/bips/blob/master/bip-0327.mediawiki). See: - Header file `include/secp256k1_musig.h` which defines the new API. - Document `doc/musig.md` for further notes on API usage. - Usage example `examples/musig.c`. + - New CMake variable `SECP256K1_APPEND_LDFLAGS` for appending linker flags to the build command. + +#### Changed + - API functions now use a significantly more robust method to clear secrets from the stack before returning. However, secret clearing remains a best-effort security measure and cannot guarantee complete removal. + - Any type `secp256k1_foo` can now be forward-declared using `typedef struct secp256k1_foo secp256k1_foo;` (or also `struct secp256k1_foo;` in C++). + - Organized CMake build artifacts into dedicated directories (`bin/` for executables, `lib/` for libraries) to improve build output structure and Windows shared library compatibility. #### Removed - - Removed the `secp256k1_scratch_space` struct and its associated functions `secp256k1_scratch_space_create` `secp256k1_scratch_space_destroy` because the scratch space was unused in the API. + - Removed the `secp256k1_scratch_space` struct and its associated functions `secp256k1_scratch_space_create` and `secp256k1_scratch_space_destroy` because the scratch space was unused in the API. + +#### ABI Compatibility +The symbols `secp256k1_scratch_space_create` and `secp256k1_scratch_space_destroy` were removed. +Otherwise, the library maintains backward compatibility with versions 0.3.x through 0.5.x. ## [0.5.1] - 2024-08-01 @@ -152,7 +162,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.1...HEAD +[0.6.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.1...v0.6.0 [0.5.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...v0.5.1 [0.5.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...v0.5.0 [0.4.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.0...v0.4.1 diff --git a/CMakeLists.txt b/CMakeLists.txt index 840781011d..041bfa3dca 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -7,7 +7,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.5.2 + VERSION 0.6.0 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -31,9 +31,9 @@ endif() # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -set(${PROJECT_NAME}_LIB_VERSION_CURRENT 4) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 2) -set(${PROJECT_NAME}_LIB_VERSION_AGE 2) +set(${PROJECT_NAME}_LIB_VERSION_CURRENT 5) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) +set(${PROJECT_NAME}_LIB_VERSION_AGE 0) #============================= # Language setup diff --git a/configure.ac b/configure.ac index dca1e662f8..f880a3578d 100644 --- a/configure.ac +++ b/configure.ac @@ -4,18 +4,18 @@ AC_PREREQ([2.60]) # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) -define(_PKG_VERSION_MINOR, 5) -define(_PKG_VERSION_PATCH, 2) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_MINOR, 6) +define(_PKG_VERSION_PATCH, 0) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -define(_LIB_VERSION_CURRENT, 4) -define(_LIB_VERSION_REVISION, 2) -define(_LIB_VERSION_AGE, 2) +define(_LIB_VERSION_CURRENT, 5) +define(_LIB_VERSION_REVISION, 0) +define(_LIB_VERSION_AGE, 0) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From c97059f5948a2d4070e0f19922e451079c749d78 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 4 Nov 2024 17:17:39 +0000 Subject: [PATCH 446/557] release cleanup: bump version after 0.6.0 --- CHANGELOG.md | 3 +++ CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index ee447c0c1c..05222e5ed0 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.6.0] - 2024-11-04 #### Added @@ -162,6 +164,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.6.0...HEAD [0.6.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.1...v0.6.0 [0.5.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...v0.5.1 [0.5.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...v0.5.0 diff --git a/CMakeLists.txt b/CMakeLists.txt index 041bfa3dca..5d3c9061cd 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -7,7 +7,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.6.0 + VERSION 0.6.1 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -32,7 +32,7 @@ endif() # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 5) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) set(${PROJECT_NAME}_LIB_VERSION_AGE 0) #============================= diff --git a/configure.ac b/configure.ac index f880a3578d..22a7ac0d14 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 6) -define(_PKG_VERSION_PATCH, 0) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 1) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 5) -define(_LIB_VERSION_REVISION, 0) +define(_LIB_VERSION_REVISION, 1) define(_LIB_VERSION_AGE, 0) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 39705450ebcfc7a2a8be540c868da9d2c44900cb Mon Sep 17 00:00:00 2001 From: Nicolas Iooss Date: Tue, 5 Nov 2024 16:44:29 +0100 Subject: [PATCH 447/557] Fix some misspellings Some files contained English misspellings or math issues (`lamba` instead of `lambda`). --- CMakeLists.txt | 2 +- configure.ac | 4 ++-- src/scalar_impl.h | 4 ++-- src/util.h | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 5d3c9061cd..aba6e51259 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -55,7 +55,7 @@ option(SECP256K1_INSTALL "Enable installation." ${PROJECT_IS_TOP_LEVEL}) ## Modules # We declare all options before processing them, to make sure we can express -# dependendencies while processing. +# dependencies while processing. option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON) option(SECP256K1_ENABLE_MODULE_RECOVERY "Enable ECDSA pubkey recovery module." OFF) option(SECP256K1_ENABLE_MODULE_EXTRAKEYS "Enable extrakeys module." ON) diff --git a/configure.ac b/configure.ac index 22a7ac0d14..c62a391d78 100644 --- a/configure.ac +++ b/configure.ac @@ -254,8 +254,8 @@ fi print_msan_notice=no if test x"$enable_ctime_tests" = x"yes"; then SECP_MSAN_CHECK - # MSan on Clang >=16 reports unitialized memory in function parameters and return values, even if - # the uninitalized variable is never actually "used". This is called "eager" checking, and it's + # MSan on Clang >=16 reports uninitialized memory in function parameters and return values, even if + # the uninitialized variable is never actually "used". This is called "eager" checking, and it's # sounds like good idea for normal use of MSan. However, it yields many false positives in the # ctime_tests because many return values depend on secret (i.e., "uninitialized") values, and # we're only interested in detecting branches (which count as "uses") on secret data. diff --git a/src/scalar_impl.h b/src/scalar_impl.h index dbb5b0a01c..0232a8c223 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -90,11 +90,11 @@ static void secp256k1_scalar_split_lambda_verify(const secp256k1_scalar *r1, con #endif /* - * Both lambda and beta are primitive cube roots of unity. That is lamba^3 == 1 mod n and + * Both lambda and beta are primitive cube roots of unity. That is lambda^3 == 1 mod n and * beta^3 == 1 mod p, where n is the curve order and p is the field order. * * Furthermore, because (X^3 - 1) = (X - 1)(X^2 + X + 1), the primitive cube roots of unity are - * roots of X^2 + X + 1. Therefore lambda^2 + lamba == -1 mod n and beta^2 + beta == -1 mod p. + * roots of X^2 + X + 1. Therefore lambda^2 + lambda == -1 mod n and beta^2 + beta == -1 mod p. * (The other primitive cube roots of unity are lambda^2 and beta^2 respectively.) * * Let l = -1/2 + i*sqrt(3)/2, the complex root of X^2 + X + 1. We can define a ring diff --git a/src/util.h b/src/util.h index 88a4149421..5f29f4076c 100644 --- a/src/util.h +++ b/src/util.h @@ -232,7 +232,7 @@ static SECP256K1_INLINE void secp256k1_memclear(void *ptr, size_t len) { * As best as we can tell, this is sufficient to break any optimisations that * might try to eliminate "superfluous" memsets. * This method is used in memzero_explicit() the Linux kernel, too. Its advantage is that it - * is pretty efficient, because the compiler can still implement the memset() efficently, + * is pretty efficient, because the compiler can still implement the memset() efficiently, * just not remove it entirely. See "Dead Store Elimination (Still) Considered Harmful" by * Yang et al. (USENIX Security 2017) for more background. */ From 1823594761046ae38e002781d65e9538dd211d27 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 2 Dec 2024 18:20:18 +0100 Subject: [PATCH 448/557] Verify `compressed` argument in `secp256k1_eckey_pubkey_serialize` Due to similarity to the public API function `secp256k1_ec_pubkey_serialize`, public API flags like `SECP256K1_EC_COMPRESSED` are sometimes mistakingly passed to newly proposed code (this is currently the case for several modules in secp256k1-zkp, see https://github.com/BlockstreamResearch/secp256k1-zkp/pull/300). which is currently not detected. To avoid this in the future, a VERIFY_CHECK is added to check that the `compressed` argument is either 0 or 1. --- src/eckey_impl.h | 3 +++ src/secp256k1.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/src/eckey_impl.h b/src/eckey_impl.h index 121966f8b5..a88a5964d8 100644 --- a/src/eckey_impl.h +++ b/src/eckey_impl.h @@ -9,6 +9,7 @@ #include "eckey.h" +#include "util.h" #include "scalar.h" #include "field.h" #include "group.h" @@ -35,6 +36,8 @@ static int secp256k1_eckey_pubkey_parse(secp256k1_ge *elem, const unsigned char } static int secp256k1_eckey_pubkey_serialize(secp256k1_ge *elem, unsigned char *pub, size_t *size, int compressed) { + VERIFY_CHECK(compressed == 0 || compressed == 1); + if (secp256k1_ge_is_infinity(elem)) { return 0; } diff --git a/src/secp256k1.c b/src/secp256k1.c index a248519dfd..8b6f993759 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -280,7 +280,7 @@ int secp256k1_ec_pubkey_serialize(const secp256k1_context* ctx, unsigned char *o ARG_CHECK(pubkey != NULL); ARG_CHECK((flags & SECP256K1_FLAGS_TYPE_MASK) == SECP256K1_FLAGS_TYPE_COMPRESSION); if (secp256k1_pubkey_load(ctx, &Q, pubkey)) { - ret = secp256k1_eckey_pubkey_serialize(&Q, output, &len, flags & SECP256K1_FLAGS_BIT_COMPRESSION); + ret = secp256k1_eckey_pubkey_serialize(&Q, output, &len, !!(flags & SECP256K1_FLAGS_BIT_COMPRESSION)); if (ret) { *outputlen = len; } From 2ac9f558c43b5ef11f0d6e1088a8295a6d162659 Mon Sep 17 00:00:00 2001 From: Fabian Jahr Date: Tue, 26 Nov 2024 22:35:25 +0100 Subject: [PATCH 449/557] doc: Improve cmake instructions in README --- README.md | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/README.md b/README.md index 222e5fb768..6a311aa66a 100644 --- a/README.md +++ b/README.md @@ -64,11 +64,11 @@ Implementation details Building with Autotools ----------------------- - $ ./autogen.sh - $ ./configure - $ make - $ make check # run the test suite - $ sudo make install # optional + $ ./autogen.sh # Generate a ./configure script + $ ./configure # Generate a build system + $ make # Run the actual build process + $ make check # Run the test suite + $ sudo make install # Install the library into the system (optional) To compile optional modules (such as Schnorr signatures), you need to run `./configure` with additional flags (such as `--enable-module-schnorrsig`). Run `./configure --help` to see the full list of available flags. @@ -79,24 +79,23 @@ To maintain a pristine source tree, CMake encourages to perform an out-of-source ### Building on POSIX systems - $ mkdir build && cd build - $ cmake .. - $ cmake --build . - $ ctest # run the test suite - $ sudo cmake --install . # optional + $ cmake -B build # Generate a build system in subdirectory "build" + $ cmake --build build # Run the actual build process + $ ctest --test-dir build # Run the test suite + $ sudo cmake --install build # Install the library into the system (optional) -To compile optional modules (such as Schnorr signatures), you need to run `cmake` with additional flags (such as `-DSECP256K1_ENABLE_MODULE_SCHNORRSIG=ON`). Run `cmake .. -LH` to see the full list of available flags. +To compile optional modules (such as Schnorr signatures), you need to run `cmake` with additional flags (such as `-DSECP256K1_ENABLE_MODULE_SCHNORRSIG=ON`). Run `cmake -B build -LH` or `ccmake -B build` to see the full list of available flags. ### Cross compiling To alleviate issues with cross compiling, preconfigured toolchain files are available in the `cmake` directory. For example, to cross compile for Windows: - $ cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/x86_64-w64-mingw32.toolchain.cmake + $ cmake -B build -DCMAKE_TOOLCHAIN_FILE=cmake/x86_64-w64-mingw32.toolchain.cmake To cross compile for Android with [NDK](https://developer.android.com/ndk/guides/cmake) (using NDK's toolchain file, and assuming the `ANDROID_NDK_ROOT` environment variable has been set): - $ cmake .. -DCMAKE_TOOLCHAIN_FILE="${ANDROID_NDK_ROOT}/build/cmake/android.toolchain.cmake" -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=28 + $ cmake -B build -DCMAKE_TOOLCHAIN_FILE="${ANDROID_NDK_ROOT}/build/cmake/android.toolchain.cmake" -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=28 ### Building on Windows @@ -106,7 +105,7 @@ The following example assumes using of Visual Studio 2022 and CMake v3.21+. In "Developer Command Prompt for VS 2022": - >cmake -G "Visual Studio 17 2022" -A x64 -S . -B build + >cmake -G "Visual Studio 17 2022" -A x64 -B build >cmake --build build --config RelWithDebInfo Usage examples From 84c0bd1f7276c163cf0e34a5dfe6e307cd2bbd4a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 13 Dec 2024 09:19:40 +0000 Subject: [PATCH 450/557] cmake: Adjust diagnostic flags for clang-cl --- CMakeLists.txt | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index aba6e51259..520a96efdc 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -242,17 +242,21 @@ endif() include(TryAppendCFlags) if(MSVC) - # Keep the following commands ordered lexicographically. + # For both cl and clang-cl compilers. try_append_c_flags(/W3) # Production quality warning level. + # Eliminate deprecation warnings for the older, less secure functions. + add_compile_definitions(_CRT_SECURE_NO_WARNINGS) +else() + try_append_c_flags(-Wall) # GCC >= 2.95 and probably many other compilers. +endif() +if(CMAKE_C_COMPILER_ID STREQUAL "MSVC") + # Keep the following commands ordered lexicographically. try_append_c_flags(/wd4146) # Disable warning C4146 "unary minus operator applied to unsigned type, result still unsigned". try_append_c_flags(/wd4244) # Disable warning C4244 "'conversion' conversion from 'type1' to 'type2', possible loss of data". try_append_c_flags(/wd4267) # Disable warning C4267 "'var' : conversion from 'size_t' to 'type', possible loss of data". - # Eliminate deprecation warnings for the older, less secure functions. - add_compile_definitions(_CRT_SECURE_NO_WARNINGS) else() # Keep the following commands ordered lexicographically. try_append_c_flags(-pedantic) - try_append_c_flags(-Wall) # GCC >= 2.95 and probably many other compilers. try_append_c_flags(-Wcast-align) # GCC >= 2.95. try_append_c_flags(-Wcast-align=strict) # GCC >= 8.0. try_append_c_flags(-Wconditional-uninitialized) # Clang >= 3.0 only. From 4c50d73dd98edc0b968525a291cf14b708bbdbf1 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 13 Dec 2024 09:35:55 +0000 Subject: [PATCH 451/557] ci: Add new "Windows (clang-cl)" job --- .github/workflows/ci.yml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 54b2fab1c4..c87de301cd 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -746,6 +746,8 @@ jobs: cpp_flags: '/DSECP256K1_MSVC_MULH_TEST_OVERRIDE' - job_name: 'x86 (MSVC): Windows (VS 2022)' cmake_options: '-A Win32' + - job_name: 'x64 (MSVC): Windows (clang-cl)' + cmake_options: '-T ClangCL' steps: - name: Checkout From a82287fb85746e0f7ea142a68a859e56ee86ee10 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Wed, 29 Jan 2025 03:59:32 +0100 Subject: [PATCH 452/557] schnorrsig: clear out masked secret key in BIP-340 nonce function --- src/modules/schnorrsig/main_impl.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 82bba2f597..2ed7be677f 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -94,6 +94,8 @@ static int nonce_function_bip340(unsigned char *nonce32, const unsigned char *ms secp256k1_sha256_write(&sha, msg, msglen); secp256k1_sha256_finalize(&sha, nonce32); secp256k1_sha256_clear(&sha); + secp256k1_memclear(masked_key, sizeof(masked_key)); + return 1; } From b682dbcf845d80f69c4e2d8243c90dd48006a4c1 Mon Sep 17 00:00:00 2001 From: James O'Beirne Date: Wed, 11 Dec 2024 09:15:26 -0500 Subject: [PATCH 453/557] README: add instructions for verifying GPG signatures --- README.md | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/README.md b/README.md index 6a311aa66a..f7a59b2b96 100644 --- a/README.md +++ b/README.md @@ -61,6 +61,42 @@ Implementation details * Optional runtime blinding which attempts to frustrate differential power analysis. * The precomputed tables add and eventually subtract points for which no known scalar (secret key) is known, preventing even an attacker with control over the secret key used to control the data internally. +Obtaining and verifying +----------------------- + +The git tag for each release (e.g. `v0.6.0`) is GPG-signed by one of the maintainers. +For a fully verified build of this project, it is recommended to obtain this repository +via git, obtain the GPG keys of the signing maintainer(s), and then verify the release +tag's signature using git. + +This can be done with the following steps: + +1. Obtain the GPG keys listed in [SECURITY.md](./SECURITY.md). +2. If possible, cross-reference these key IDs with another source controlled by its owner (e.g. + social media, personal website). This is to mitigate the unlikely case that incorrect + content is being presented by this repository. +3. Clone the repository: + ``` + git clone https://github.com/bitcoin-core/secp256k1 + ``` +4. Check out the latest release tag, e.g. + ``` + git checkout v0.6.0 + ``` +5. Use git to verify the GPG signature: + ``` + % git tag -v v0.6.0 | grep -C 3 'Good signature' + + gpg: Signature made Mon 04 Nov 2024 12:14:44 PM EST + gpg: using RSA key 4BBB845A6F5A65A69DFAEC234861DBF262123605 + gpg: Good signature from "Jonas Nick " [unknown] + gpg: aka "Jonas Nick " [unknown] + gpg: WARNING: This key is not certified with a trusted signature! + gpg: There is no indication that the signature belongs to the owner. + Primary key fingerprint: 36C7 1A37 C9D9 88BD E825 08D9 B1A7 0E4F 8DCD 0366 + Subkey fingerprint: 4BBB 845A 6F5A 65A6 9DFA EC23 4861 DBF2 6212 3605 + ``` + Building with Autotools ----------------------- From 965393fceadf8024c6b60dff59b2c30b61af28d2 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 14 Feb 2025 13:43:10 +0100 Subject: [PATCH 454/557] examples: use `EXIT_...` constants for `main` return values Fixes issue #1609. --- examples/ecdh.c | 9 +++++---- examples/ecdsa.c | 13 +++++++------ examples/ellswift.c | 11 ++++++----- examples/musig.c | 15 ++++++++------- examples/schnorr.c | 13 +++++++------ 5 files changed, 33 insertions(+), 28 deletions(-) diff --git a/examples/ecdh.c b/examples/ecdh.c index 13aa760b2d..67b8c2047a 100644 --- a/examples/ecdh.c +++ b/examples/ecdh.c @@ -8,6 +8,7 @@ *************************************************************************/ #include +#include #include #include @@ -33,7 +34,7 @@ int main(void) { secp256k1_context* ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); if (!fill_random(randomize, sizeof(randomize))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* Randomizing the context is recommended to protect against side-channel * leakage See `secp256k1_context_randomize` in secp256k1.h for more @@ -44,14 +45,14 @@ int main(void) { /*** Key Generation ***/ if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* If the secret key is zero or out of range (greater than secp256k1's * order), we fail. Note that the probability of this occurring is negligible * with a properly functioning random number generator. */ if (!secp256k1_ec_seckey_verify(ctx, seckey1) || !secp256k1_ec_seckey_verify(ctx, seckey2)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); - return 1; + return EXIT_FAILURE; } /* Public key creation using a valid context with a verified secret key should never fail */ @@ -116,5 +117,5 @@ int main(void) { secure_erase(shared_secret1, sizeof(shared_secret1)); secure_erase(shared_secret2, sizeof(shared_secret2)); - return 0; + return EXIT_SUCCESS; } diff --git a/examples/ecdsa.c b/examples/ecdsa.c index 80ae9d46c5..ae16c180dc 100644 --- a/examples/ecdsa.c +++ b/examples/ecdsa.c @@ -8,6 +8,7 @@ *************************************************************************/ #include +#include #include #include @@ -40,7 +41,7 @@ int main(void) { secp256k1_context* ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); if (!fill_random(randomize, sizeof(randomize))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* Randomizing the context is recommended to protect against side-channel * leakage See `secp256k1_context_randomize` in secp256k1.h for more @@ -51,14 +52,14 @@ int main(void) { /*** Key Generation ***/ if (!fill_random(seckey, sizeof(seckey))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* If the secret key is zero or out of range (greater than secp256k1's * order), we fail. Note that the probability of this occurring is negligible * with a properly functioning random number generator. */ if (!secp256k1_ec_seckey_verify(ctx, seckey)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); - return 1; + return EXIT_FAILURE; } /* Public key creation using a valid context with a verified secret key should never fail */ @@ -92,13 +93,13 @@ int main(void) { /* Deserialize the signature. This will return 0 if the signature can't be parsed correctly. */ if (!secp256k1_ecdsa_signature_parse_compact(ctx, &sig, serialized_signature)) { printf("Failed parsing the signature\n"); - return 1; + return EXIT_FAILURE; } /* Deserialize the public key. This will return 0 if the public key can't be parsed correctly. */ if (!secp256k1_ec_pubkey_parse(ctx, &pubkey, compressed_pubkey, sizeof(compressed_pubkey))) { printf("Failed parsing the public key\n"); - return 1; + return EXIT_FAILURE; } /* Verify a signature. This will return 1 if it's valid and 0 if it's not. */ @@ -133,5 +134,5 @@ int main(void) { * will remove any writes that aren't used. */ secure_erase(seckey, sizeof(seckey)); - return 0; + return EXIT_SUCCESS; } diff --git a/examples/ellswift.c b/examples/ellswift.c index afb2fee40b..d58e96b053 100644 --- a/examples/ellswift.c +++ b/examples/ellswift.c @@ -13,6 +13,7 @@ */ #include +#include #include #include @@ -38,7 +39,7 @@ int main(void) { ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); if (!fill_random(randomize, sizeof(randomize))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* Randomizing the context is recommended to protect against side-channel * leakage. See `secp256k1_context_randomize` in secp256k1.h for more @@ -49,14 +50,14 @@ int main(void) { /*** Generate secret keys ***/ if (!fill_random(seckey1, sizeof(seckey1)) || !fill_random(seckey2, sizeof(seckey2))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* If the secret key is zero or out of range (greater than secp256k1's * order), we fail. Note that the probability of this occurring is negligible * with a properly functioning random number generator. */ if (!secp256k1_ec_seckey_verify(ctx, seckey1) || !secp256k1_ec_seckey_verify(ctx, seckey2)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); - return 1; + return EXIT_FAILURE; } /* Generate ElligatorSwift public keys. This should never fail with valid context and @@ -64,7 +65,7 @@ int main(void) { optional, but recommended. */ if (!fill_random(auxrand1, sizeof(auxrand1)) || !fill_random(auxrand2, sizeof(auxrand2))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } return_val = secp256k1_ellswift_create(ctx, ellswift_pubkey1, seckey1, auxrand1); assert(return_val); @@ -117,5 +118,5 @@ int main(void) { secure_erase(shared_secret1, sizeof(shared_secret1)); secure_erase(shared_secret2, sizeof(shared_secret2)); - return 0; + return EXIT_SUCCESS; } diff --git a/examples/musig.c b/examples/musig.c index 0352dc40f3..bdb8fced0c 100644 --- a/examples/musig.c +++ b/examples/musig.c @@ -12,6 +12,7 @@ */ #include +#include #include #include @@ -193,7 +194,7 @@ int main(void) { for (i = 0; i < N_SIGNERS; i++) { if (!create_keypair(ctx, &signer_secrets[i], &signers[i])) { printf("FAILED\n"); - return 1; + return EXIT_FAILURE; } pubkeys_ptr[i] = &signers[i].pubkey; } @@ -208,7 +209,7 @@ int main(void) { fflush(stdout); if (!secp256k1_ec_pubkey_sort(ctx, pubkeys_ptr, N_SIGNERS)) { printf("FAILED\n"); - return 1; + return EXIT_FAILURE; } printf("ok\n"); @@ -219,7 +220,7 @@ int main(void) { * while providing a non-NULL agg_pk argument. */ if (!secp256k1_musig_pubkey_agg(ctx, NULL, &cache, pubkeys_ptr, N_SIGNERS)) { printf("FAILED\n"); - return 1; + return EXIT_FAILURE; } printf("ok\n"); printf("Tweaking................"); @@ -227,21 +228,21 @@ int main(void) { /* Optionally tweak the aggregate key */ if (!tweak(ctx, &agg_pk, &cache)) { printf("FAILED\n"); - return 1; + return EXIT_FAILURE; } printf("ok\n"); printf("Signing message........."); fflush(stdout); if (!sign(ctx, signer_secrets, signers, &cache, msg, sig)) { printf("FAILED\n"); - return 1; + return EXIT_FAILURE; } printf("ok\n"); printf("Verifying signature....."); fflush(stdout); if (!secp256k1_schnorrsig_verify(ctx, sig, msg, 32, &agg_pk)) { printf("FAILED\n"); - return 1; + return EXIT_FAILURE; } printf("ok\n"); @@ -256,5 +257,5 @@ int main(void) { secure_erase(&signer_secrets[i], sizeof(signer_secrets[i])); } secp256k1_context_destroy(ctx); - return 0; + return EXIT_SUCCESS; } diff --git a/examples/schnorr.c b/examples/schnorr.c index 909fcaa1f3..49baed24be 100644 --- a/examples/schnorr.c +++ b/examples/schnorr.c @@ -8,6 +8,7 @@ *************************************************************************/ #include +#include #include #include @@ -34,7 +35,7 @@ int main(void) { secp256k1_context* ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); if (!fill_random(randomize, sizeof(randomize))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* Randomizing the context is recommended to protect against side-channel * leakage See `secp256k1_context_randomize` in secp256k1.h for more @@ -45,7 +46,7 @@ int main(void) { /*** Key Generation ***/ if (!fill_random(seckey, sizeof(seckey))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* Try to create a keypair with a valid context. This only fails if the * secret key is zero or out of range (greater than secp256k1's order). Note @@ -53,7 +54,7 @@ int main(void) { * functioning random number generator. */ if (!secp256k1_keypair_create(ctx, &keypair, seckey)) { printf("Generated secret key is invalid. This indicates an issue with the random number generator.\n"); - return 1; + return EXIT_FAILURE; } /* Extract the X-only public key from the keypair. We pass NULL for @@ -90,7 +91,7 @@ int main(void) { /* Generate 32 bytes of randomness to use with BIP-340 schnorr signing. */ if (!fill_random(auxiliary_rand, sizeof(auxiliary_rand))) { printf("Failed to generate randomness\n"); - return 1; + return EXIT_FAILURE; } /* Generate a Schnorr signature. @@ -110,7 +111,7 @@ int main(void) { * be parsed correctly */ if (!secp256k1_xonly_pubkey_parse(ctx, &pubkey, serialized_pubkey)) { printf("Failed parsing the public key\n"); - return 1; + return EXIT_FAILURE; } /* Compute the tagged hash on the received messages using the same tag as the signer. */ @@ -149,5 +150,5 @@ int main(void) { * Here we are preventing these writes from being optimized out, as any good compiler * will remove any writes that aren't used. */ secure_erase(seckey, sizeof(seckey)); - return 0; + return EXIT_SUCCESS; } From c8555817280d106a9f860462a4499f0eb1acd001 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 14 Feb 2025 13:43:29 +0100 Subject: [PATCH 455/557] test, bench, precompute_ecmult: use `EXIT_...` constants for `main` return values --- src/bench.c | 15 ++++++++------- src/bench.h | 2 +- src/bench_ecmult.c | 7 ++++--- src/bench_internal.c | 5 +++-- src/ctime_tests.c | 5 +++-- src/precompute_ecmult.c | 5 +++-- src/precompute_ecmult_gen.c | 5 +++-- src/tests.c | 2 +- src/tests_exhaustive.c | 4 ++-- 9 files changed, 28 insertions(+), 22 deletions(-) diff --git a/src/bench.c b/src/bench.c index 1127df67ae..149f25fce4 100644 --- a/src/bench.c +++ b/src/bench.c @@ -5,6 +5,7 @@ ***********************************************************************/ #include +#include #include #include "../include/secp256k1.h" @@ -188,11 +189,11 @@ int main(int argc, char** argv) { || have_flag(argc, argv, "--help") || have_flag(argc, argv, "help")) { help(default_iters); - return 0; + return EXIT_SUCCESS; } else if (invalid_args) { fprintf(stderr, "./bench: unrecognized argument.\n\n"); help(default_iters); - return 1; + return EXIT_FAILURE; } } @@ -201,7 +202,7 @@ int main(int argc, char** argv) { if (have_flag(argc, argv, "ecdh")) { fprintf(stderr, "./bench: ECDH module not enabled.\n"); fprintf(stderr, "Use ./configure --enable-module-ecdh.\n\n"); - return 1; + return EXIT_FAILURE; } #endif @@ -209,7 +210,7 @@ int main(int argc, char** argv) { if (have_flag(argc, argv, "recover") || have_flag(argc, argv, "ecdsa_recover")) { fprintf(stderr, "./bench: Public key recovery module not enabled.\n"); fprintf(stderr, "Use ./configure --enable-module-recovery.\n\n"); - return 1; + return EXIT_FAILURE; } #endif @@ -217,7 +218,7 @@ int main(int argc, char** argv) { if (have_flag(argc, argv, "schnorrsig") || have_flag(argc, argv, "schnorrsig_sign") || have_flag(argc, argv, "schnorrsig_verify")) { fprintf(stderr, "./bench: Schnorr signatures module not enabled.\n"); fprintf(stderr, "Use ./configure --enable-module-schnorrsig.\n\n"); - return 1; + return EXIT_FAILURE; } #endif @@ -227,7 +228,7 @@ int main(int argc, char** argv) { have_flag(argc, argv, "ellswift_ecdh")) { fprintf(stderr, "./bench: ElligatorSwift module not enabled.\n"); fprintf(stderr, "Use ./configure --enable-module-ellswift.\n\n"); - return 1; + return EXIT_FAILURE; } #endif @@ -275,5 +276,5 @@ int main(int argc, char** argv) { run_ellswift_bench(iters, argc, argv); #endif - return 0; + return EXIT_SUCCESS; } diff --git a/src/bench.h b/src/bench.h index 1564b1a176..232fb35fc0 100644 --- a/src/bench.h +++ b/src/bench.h @@ -24,7 +24,7 @@ static int64_t gettime_i64(void) { struct timespec tv; if (!timespec_get(&tv, TIME_UTC)) { fputs("timespec_get failed!", stderr); - exit(1); + exit(EXIT_FAILURE); } return (int64_t)tv.tv_nsec / 1000 + (int64_t)tv.tv_sec * 1000000LL; #else diff --git a/src/bench_ecmult.c b/src/bench_ecmult.c index 3974af75f4..172292d570 100644 --- a/src/bench_ecmult.c +++ b/src/bench_ecmult.c @@ -4,6 +4,7 @@ * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ #include +#include #include "secp256k1.c" #include "../include/secp256k1.h" @@ -287,7 +288,7 @@ int main(int argc, char **argv) { || have_flag(argc, argv, "--help") || have_flag(argc, argv, "help")) { help(argv); - return 0; + return EXIT_SUCCESS; } else if(have_flag(argc, argv, "pippenger_wnaf")) { printf("Using pippenger_wnaf:\n"); data.ecmult_multi = secp256k1_ecmult_pippenger_batch_single; @@ -299,7 +300,7 @@ int main(int argc, char **argv) { } else { fprintf(stderr, "%s: unrecognized argument '%s'.\n\n", argv[0], argv[1]); help(argv); - return 1; + return EXIT_FAILURE; } } @@ -363,5 +364,5 @@ int main(int argc, char **argv) { free(data.output); free(data.expected_output); - return(0); + return EXIT_SUCCESS; } diff --git a/src/bench_internal.c b/src/bench_internal.c index a700684922..8688a4dc77 100644 --- a/src/bench_internal.c +++ b/src/bench_internal.c @@ -4,6 +4,7 @@ * file COPYING or https://www.opensource.org/licenses/mit-license.php.* ***********************************************************************/ #include +#include #include "secp256k1.c" #include "../include/secp256k1.h" @@ -393,7 +394,7 @@ int main(int argc, char **argv) { || have_flag(argc, argv, "--help") || have_flag(argc, argv, "help")) { help(default_iters); - return 0; + return EXIT_SUCCESS; } } @@ -432,5 +433,5 @@ int main(int argc, char **argv) { if (d || have_flag(argc, argv, "context")) run_benchmark("context_create", bench_context, bench_setup, NULL, &data, 10, iters); - return 0; + return EXIT_SUCCESS; } diff --git a/src/ctime_tests.c b/src/ctime_tests.c index bbde863d96..f81bdb9228 100644 --- a/src/ctime_tests.c +++ b/src/ctime_tests.c @@ -5,6 +5,7 @@ ***********************************************************************/ #include +#include #include #include "../include/secp256k1.h" @@ -49,7 +50,7 @@ int main(void) { if (!SECP256K1_CHECKMEM_RUNNING()) { fprintf(stderr, "This test can only usefully be run inside valgrind because it was not compiled under msan.\n"); fprintf(stderr, "Usage: libtool --mode=execute valgrind ./ctime_tests\n"); - return 1; + return EXIT_FAILURE; } ctx = secp256k1_context_create(SECP256K1_CONTEXT_DECLASSIFY); /** In theory, testing with a single secret input should be sufficient: @@ -69,7 +70,7 @@ int main(void) { CHECK(ret); secp256k1_context_destroy(ctx); - return 0; + return EXIT_SUCCESS; } static void run_tests(secp256k1_context *ctx, unsigned char *key) { diff --git a/src/precompute_ecmult.c b/src/precompute_ecmult.c index 5ef198a770..021fe3940c 100644 --- a/src/precompute_ecmult.c +++ b/src/precompute_ecmult.c @@ -6,6 +6,7 @@ #include #include +#include #include "../include/secp256k1.h" @@ -62,7 +63,7 @@ int main(void) { fp = fopen(outfile, "w"); if (fp == NULL) { fprintf(stderr, "Could not open %s for writing!\n", outfile); - return -1; + return EXIT_FAILURE; } fprintf(fp, "/* This file was automatically generated by precompute_ecmult. */\n"); @@ -86,5 +87,5 @@ int main(void) { fprintf(fp, "#undef S\n"); fclose(fp); - return 0; + return EXIT_SUCCESS; } diff --git a/src/precompute_ecmult_gen.c b/src/precompute_ecmult_gen.c index 4d153a6574..cd0fe70fc2 100644 --- a/src/precompute_ecmult_gen.c +++ b/src/precompute_ecmult_gen.c @@ -6,6 +6,7 @@ #include #include +#include #include "../include/secp256k1.h" @@ -64,7 +65,7 @@ int main(int argc, char **argv) { fp = fopen(outfile, "w"); if (fp == NULL) { fprintf(stderr, "Could not open %s for writing!\n", outfile); - return -1; + return EXIT_FAILURE; } fprintf(fp, "/* This file was automatically generated by precompute_ecmult_gen. */\n"); @@ -96,5 +97,5 @@ int main(int argc, char **argv) { fprintf(fp, "#undef S\n"); fclose(fp); - return 0; + return EXIT_SUCCESS; } diff --git a/src/tests.c b/src/tests.c index 78533b11c2..88628a14ea 100644 --- a/src/tests.c +++ b/src/tests.c @@ -7837,5 +7837,5 @@ int main(int argc, char **argv) { testrand_finish(); printf("no problems found\n"); - return 0; + return EXIT_SUCCESS; } diff --git a/src/tests_exhaustive.c b/src/tests_exhaustive.c index 6efa88982e..f8bbcaaf5c 100644 --- a/src/tests_exhaustive.c +++ b/src/tests_exhaustive.c @@ -383,7 +383,7 @@ int main(int argc, char** argv) { this_core = strtol(argv[4], NULL, 0); if (num_cores < 1 || this_core >= num_cores) { fprintf(stderr, "Usage: %s [count] [seed] [numcores] [thiscore]\n", argv[0]); - return 1; + return EXIT_FAILURE; } printf("running tests for core %lu (out of [0..%lu])\n", (unsigned long)this_core, (unsigned long)num_cores - 1); } @@ -462,5 +462,5 @@ int main(int argc, char** argv) { testrand_finish(); printf("no problems found\n"); - return 0; + return EXIT_SUCCESS; } From 13d389629aba2c686798a856332c00c6934cacd5 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 14 Feb 2025 13:42:28 +0100 Subject: [PATCH 456/557] CONTRIBUTING: mention that `EXIT_` codes should be used --- CONTRIBUTING.md | 1 + 1 file changed, 1 insertion(+) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index a366d38b0e..80890fb706 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -74,6 +74,7 @@ In addition, libsecp256k1 tries to maintain the following coding conventions: * User-facing comment lines in headers should be limited to 80 chars if possible. * All identifiers in file scope should start with `secp256k1_`. * Avoid trailing whitespace. +* Use the constants `EXIT_SUCCESS`/`EXIT_FAILURE` (defined in `stdlib.h`) to indicate program execution status for examples and other binaries. ### Tests From 432ac57705b8e2f6a5874095214c443f1f8ea9bf Mon Sep 17 00:00:00 2001 From: Daniel Pfeifer Date: Fri, 22 Nov 2024 22:28:30 +0100 Subject: [PATCH 457/557] Make static context const --- include/secp256k1.h | 4 ++-- src/secp256k1.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index c6e9417f05..ccb7457e3d 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -230,10 +230,10 @@ typedef int (*secp256k1_nonce_function)( * * It is highly recommended to call secp256k1_selftest before using this context. */ -SECP256K1_API const secp256k1_context *secp256k1_context_static; +SECP256K1_API const secp256k1_context * const secp256k1_context_static; /** Deprecated alias for secp256k1_context_static. */ -SECP256K1_API const secp256k1_context *secp256k1_context_no_precomp +SECP256K1_API const secp256k1_context * const secp256k1_context_no_precomp SECP256K1_DEPRECATED("Use secp256k1_context_static instead"); /** Perform basic self tests (to be used in conjunction with secp256k1_context_static) diff --git a/src/secp256k1.c b/src/secp256k1.c index 8b6f993759..f047ca9e3f 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -71,8 +71,8 @@ static const secp256k1_context secp256k1_context_static_ = { { secp256k1_default_error_callback_fn, 0 }, 0 }; -const secp256k1_context *secp256k1_context_static = &secp256k1_context_static_; -const secp256k1_context *secp256k1_context_no_precomp = &secp256k1_context_static_; +const secp256k1_context * const secp256k1_context_static = &secp256k1_context_static_; +const secp256k1_context * const secp256k1_context_no_precomp = &secp256k1_context_static_; /* Helper function that determines if a context is proper, i.e., is not the static context or a copy thereof. * From 37d2c60beca394e8f4733c65f5d558eb302cac06 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Wed, 21 Aug 2024 00:57:38 +0200 Subject: [PATCH 458/557] Remove deprecated _ec_privkey_{negate,tweak_add,tweak_mul} aliases These function aliases have been described as DEPRECATED in the public API docs already many years ago (see #701, commit 41fc7856), and in addition explicit deprecation warnings are shown by the compiler at least since the first official release 0.2.0 (see PR #1089, commit fc94a2da), so it should be fine to just remove them by now. Co-authored-by: Tim Ruffing --- CHANGELOG.md | 5 +++++ include/secp256k1.h | 26 -------------------------- src/secp256k1.c | 12 ------------ src/tests.c | 19 ------------------- 4 files changed, 5 insertions(+), 57 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 05222e5ed0..7042171135 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Removed +- Removed previously deprecated function aliases `secp256k1_ec_privkey_negate`, `secp256k1_ec_privkey_tweak_add` and + `secp256k1_ec_privkey_tweak_mul`. Use `secp256k1_ec_seckey_negate`, `secp256k1_ec_seckey_tweak_add` and + `secp256k1_ec_seckey_tweak_mul` instead. + ## [0.6.0] - 2024-11-04 #### Added diff --git a/include/secp256k1.h b/include/secp256k1.h index c6e9417f05..b7a099c703 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -701,14 +701,6 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_negate( unsigned char *seckey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); -/** Same as secp256k1_ec_seckey_negate, but DEPRECATED. Will be removed in - * future versions. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_negate( - const secp256k1_context *ctx, - unsigned char *seckey -) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) - SECP256K1_DEPRECATED("Use secp256k1_ec_seckey_negate instead"); - /** Negates a public key in place. * * Returns: 1 always @@ -741,15 +733,6 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_add( const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); -/** Same as secp256k1_ec_seckey_tweak_add, but DEPRECATED. Will be removed in - * future versions. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_add( - const secp256k1_context *ctx, - unsigned char *seckey, - const unsigned char *tweak32 -) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) - SECP256K1_DEPRECATED("Use secp256k1_ec_seckey_tweak_add instead"); - /** Tweak a public key by adding tweak times the generator to it. * * Returns: 0 if the arguments are invalid or the resulting public key would be @@ -788,15 +771,6 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_mul( const unsigned char *tweak32 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); -/** Same as secp256k1_ec_seckey_tweak_mul, but DEPRECATED. Will be removed in - * future versions. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_mul( - const secp256k1_context *ctx, - unsigned char *seckey, - const unsigned char *tweak32 -) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) - SECP256K1_DEPRECATED("Use secp256k1_ec_seckey_tweak_mul instead"); - /** Tweak a public key by multiplying it by a tweak value. * * Returns: 0 if the arguments are invalid. 1 otherwise. diff --git a/src/secp256k1.c b/src/secp256k1.c index 8b6f993759..b89ef36db3 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -634,10 +634,6 @@ int secp256k1_ec_seckey_negate(const secp256k1_context* ctx, unsigned char *seck return ret; } -int secp256k1_ec_privkey_negate(const secp256k1_context* ctx, unsigned char *seckey) { - return secp256k1_ec_seckey_negate(ctx, seckey); -} - int secp256k1_ec_pubkey_negate(const secp256k1_context* ctx, secp256k1_pubkey *pubkey) { int ret = 0; secp256k1_ge p; @@ -681,10 +677,6 @@ int secp256k1_ec_seckey_tweak_add(const secp256k1_context* ctx, unsigned char *s return ret; } -int secp256k1_ec_privkey_tweak_add(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak32) { - return secp256k1_ec_seckey_tweak_add(ctx, seckey, tweak32); -} - static int secp256k1_ec_pubkey_tweak_add_helper(secp256k1_ge *p, const unsigned char *tweak32) { secp256k1_scalar term; int overflow = 0; @@ -729,10 +721,6 @@ int secp256k1_ec_seckey_tweak_mul(const secp256k1_context* ctx, unsigned char *s return ret; } -int secp256k1_ec_privkey_tweak_mul(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak32) { - return secp256k1_ec_seckey_tweak_mul(ctx, seckey, tweak32); -} - int secp256k1_ec_pubkey_tweak_mul(const secp256k1_context* ctx, secp256k1_pubkey *pubkey, const unsigned char *tweak32) { secp256k1_ge p; secp256k1_scalar factor; diff --git a/src/tests.c b/src/tests.c index 88628a14ea..7658356382 100644 --- a/src/tests.c +++ b/src/tests.c @@ -6248,11 +6248,6 @@ static void run_eckey_negate_test(void) { CHECK(secp256k1_ec_seckey_negate(CTX, seckey) == 1); CHECK(secp256k1_memcmp_var(seckey, seckey_tmp, 32) == 0); - /* Check that privkey alias gives same result */ - CHECK(secp256k1_ec_seckey_negate(CTX, seckey) == 1); - CHECK(secp256k1_ec_privkey_negate(CTX, seckey_tmp) == 1); - CHECK(secp256k1_memcmp_var(seckey, seckey_tmp, 32) == 0); - /* Negating all 0s fails */ memset(seckey, 0, 32); memset(seckey_tmp, 0, 32); @@ -6413,22 +6408,15 @@ static void test_ecdsa_end_to_end(void) { if (testrand_int(3) == 0) { int ret1; int ret2; - int ret3; unsigned char rnd[32]; - unsigned char privkey_tmp[32]; secp256k1_pubkey pubkey2; testrand256_test(rnd); - memcpy(privkey_tmp, privkey, 32); ret1 = secp256k1_ec_seckey_tweak_add(CTX, privkey, rnd); ret2 = secp256k1_ec_pubkey_tweak_add(CTX, &pubkey, rnd); - /* Check that privkey alias gives same result */ - ret3 = secp256k1_ec_privkey_tweak_add(CTX, privkey_tmp, rnd); CHECK(ret1 == ret2); - CHECK(ret2 == ret3); if (ret1 == 0) { return; } - CHECK(secp256k1_memcmp_var(privkey, privkey_tmp, 32) == 0); CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey2, privkey) == 1); CHECK(secp256k1_memcmp_var(&pubkey, &pubkey2, sizeof(pubkey)) == 0); } @@ -6437,22 +6425,15 @@ static void test_ecdsa_end_to_end(void) { if (testrand_int(3) == 0) { int ret1; int ret2; - int ret3; unsigned char rnd[32]; - unsigned char privkey_tmp[32]; secp256k1_pubkey pubkey2; testrand256_test(rnd); - memcpy(privkey_tmp, privkey, 32); ret1 = secp256k1_ec_seckey_tweak_mul(CTX, privkey, rnd); ret2 = secp256k1_ec_pubkey_tweak_mul(CTX, &pubkey, rnd); - /* Check that privkey alias gives same result */ - ret3 = secp256k1_ec_privkey_tweak_mul(CTX, privkey_tmp, rnd); CHECK(ret1 == ret2); - CHECK(ret2 == ret3); if (ret1 == 0) { return; } - CHECK(secp256k1_memcmp_var(privkey, privkey_tmp, 32) == 0); CHECK(secp256k1_ec_pubkey_create(CTX, &pubkey2, privkey) == 1); CHECK(secp256k1_memcmp_var(&pubkey, &pubkey2, sizeof(pubkey)) == 0); } From 961ec25a8392415f3e1d3e88a43e81c12d716e72 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 10 Mar 2025 15:10:29 +0100 Subject: [PATCH 459/557] musig: Fix clearing of pubnonces Fixes a silent merge conflict between #1614 and #1579. --- src/modules/musig/session_impl.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index fd09df6c82..d8dcd00c95 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -445,12 +445,18 @@ static int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp secp256k1_musig_secnonce_save(secnonce, k, &pk); secp256k1_musig_secnonce_invalidate(ctx, secnonce, !ret); + /* Compute pubnonce as two gejs */ for (i = 0; i < 2; i++) { secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &nonce_ptj[i], &k[i]); secp256k1_scalar_clear(&k[i]); - secp256k1_gej_clear(&nonce_ptj); } + + /* Batch convert to two public ges */ secp256k1_ge_set_all_gej(nonce_pts, nonce_ptj, 2); + for (i = 0; i < 2; i++) { + secp256k1_gej_clear(&nonce_ptj[i]); + } + for (i = 0; i < 2; i++) { secp256k1_declassify(ctx, &nonce_pts[i], sizeof(nonce_pts[i])); } From 59860bcc24814a4779be5688fce03bc6385faf87 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 10 Mar 2025 10:20:29 +0100 Subject: [PATCH 460/557] gha: Print all *.log files, in a separate action Before this commit, we didn't print *_example.log files and test_suite.log. Printing is now handled in a separate action, which avoids code duplication and makes the ci.yml file more readable. This changes the folding/grouping of the log output in the GitHub Actions CI, but I think the new variant is as good as the old one. Furthermore, the condition for printing the logs is changed from "always()" to "!cancelled()". This ensures that logs will still be printed if previous steps such as the CI script failed, but that they won't be printed if the entire run is cancelled (e.g., by clicking a button in the UI or through a force-push to the PR). This is in line with a recommendation in the GHA docs: https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/evaluate-expressions-in-workflows-and-actions#always --- .github/actions/print-logs/action.yml | 34 ++++ .github/workflows/ci.yml | 264 +++++--------------------- 2 files changed, 77 insertions(+), 221 deletions(-) create mode 100644 .github/actions/print-logs/action.yml diff --git a/.github/actions/print-logs/action.yml b/.github/actions/print-logs/action.yml new file mode 100644 index 0000000000..33de35cb34 --- /dev/null +++ b/.github/actions/print-logs/action.yml @@ -0,0 +1,34 @@ +name: "Print logs" +description: "Print the log files produced by ci/ci.sh" +runs: + using: "composite" + steps: + - shell: bash + run: | + # Print the log files produced by ci/ci.sh + + # Helper functions + group() { + title=$1 + echo "::group::$title" + } + endgroup() { + echo "::endgroup::" + } + cat_file() { + file=$1 + group "$file" + cat "$file" + endgroup + } + + # Print all *.log files + shopt -s nullglob + for file in *.log; do + cat_file "$file" + done + + # Print environment + group "CI env" + env + endgroup diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 54b2fab1c4..3683ebb083 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -107,23 +107,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} i686_debian: name: "i686: Linux (Debian stable)" @@ -157,23 +143,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} s390x_debian: name: "s390x (big-endian): Linux (Debian stable, QEMU)" @@ -203,23 +175,10 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} + arm32_debian: name: "ARM32: Linux (Debian stable, QEMU)" @@ -257,23 +216,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} arm64_debian: name: "ARM64: Linux (Debian stable, QEMU)" @@ -314,23 +259,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} ppc64le_debian: name: "ppc64le: Linux (Debian stable, QEMU)" @@ -360,23 +291,10 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} + valgrind_debian: name: "Valgrind (memcheck)" @@ -416,23 +334,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} sanitizers_debian: name: "UBSan, ASan, LSan" @@ -473,23 +377,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} msan_debian: name: "MSan" @@ -537,23 +427,10 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} + mingw_debian: name: ${{ matrix.configuration.job_name }} @@ -593,23 +470,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} x86_64-macos-native: name: "x86_64: macOS Ventura, Valgrind" @@ -652,23 +515,9 @@ jobs: env: ${{ matrix.env_vars }} run: ./ci/ci.sh - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} arm64-macos-native: name: "ARM64: macOS Sonoma" @@ -708,23 +557,10 @@ jobs: env: ${{ matrix.env_vars }} run: ./ci/ci.sh - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} + win64-native: name: ${{ matrix.configuration.job_name }} @@ -813,23 +649,9 @@ jobs: dockerfile: ./ci/linux-debian.Dockerfile tag: linux-debian-image - - run: cat tests.log || true - if: ${{ always() }} - - run: cat noverify_tests.log || true - if: ${{ always() }} - - run: cat exhaustive_tests.log || true - if: ${{ always() }} - - run: cat ctime_tests.log || true - if: ${{ always() }} - - run: cat bench.log || true - if: ${{ always() }} - - run: cat config.log || true - if: ${{ always() }} - - run: cat test_env.log || true - if: ${{ always() }} - - name: CI env - run: env - if: ${{ always() }} + - name: Print logs + uses: ./.github/actions/print-logs + if: ${{ !cancelled() }} cxx_headers_debian: name: "C++ (public headers)" From 88548058b3e88f7f1ce7c1abbe12da8105a858cc Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 10 Mar 2025 11:22:13 +0000 Subject: [PATCH 461/557] Introduce `SECP256K1_LOCAL_VAR` macro This change makes the `-fvisibility=hidden` compiler option unnecessary. --- Makefile.am | 1 + src/precomputed_ecmult.h | 6 ++++-- src/precomputed_ecmult_gen.h | 4 +++- src/util_local_visibility.h | 12 ++++++++++++ 4 files changed, 20 insertions(+), 3 deletions(-) create mode 100644 src/util_local_visibility.h diff --git a/Makefile.am b/Makefile.am index a95b4809d4..fb4a48aa82 100644 --- a/Makefile.am +++ b/Makefile.am @@ -47,6 +47,7 @@ noinst_HEADERS += src/assumptions.h noinst_HEADERS += src/checkmem.h noinst_HEADERS += src/testutil.h noinst_HEADERS += src/util.h +noinst_HEADERS += src/util_local_visibility.h noinst_HEADERS += src/int128.h noinst_HEADERS += src/int128_impl.h noinst_HEADERS += src/int128_native.h diff --git a/src/precomputed_ecmult.h b/src/precomputed_ecmult.h index 17df102967..e5a85f684f 100644 --- a/src/precomputed_ecmult.h +++ b/src/precomputed_ecmult.h @@ -13,6 +13,8 @@ extern "C" { #include "ecmult.h" #include "group.h" +#include "util_local_visibility.h" + #if defined(EXHAUSTIVE_TEST_ORDER) # if EXHAUSTIVE_TEST_ORDER == 7 # define WINDOW_G 3 @@ -27,8 +29,8 @@ static secp256k1_ge_storage secp256k1_pre_g[ECMULT_TABLE_SIZE(WINDOW_G)]; static secp256k1_ge_storage secp256k1_pre_g_128[ECMULT_TABLE_SIZE(WINDOW_G)]; #else /* !defined(EXHAUSTIVE_TEST_ORDER) */ # define WINDOW_G ECMULT_WINDOW_SIZE -extern const secp256k1_ge_storage secp256k1_pre_g[ECMULT_TABLE_SIZE(WINDOW_G)]; -extern const secp256k1_ge_storage secp256k1_pre_g_128[ECMULT_TABLE_SIZE(WINDOW_G)]; +SECP256K1_LOCAL_VAR const secp256k1_ge_storage secp256k1_pre_g[ECMULT_TABLE_SIZE(WINDOW_G)]; +SECP256K1_LOCAL_VAR const secp256k1_ge_storage secp256k1_pre_g_128[ECMULT_TABLE_SIZE(WINDOW_G)]; #endif /* defined(EXHAUSTIVE_TEST_ORDER) */ #ifdef __cplusplus diff --git a/src/precomputed_ecmult_gen.h b/src/precomputed_ecmult_gen.h index 283738a5ce..00ddce108b 100644 --- a/src/precomputed_ecmult_gen.h +++ b/src/precomputed_ecmult_gen.h @@ -13,10 +13,12 @@ extern "C" { #include "group.h" #include "ecmult_gen.h" +#include "util_local_visibility.h" + #ifdef EXHAUSTIVE_TEST_ORDER static secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS]; #else -extern const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS]; +SECP256K1_LOCAL_VAR const secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[COMB_BLOCKS][COMB_POINTS]; #endif /* defined(EXHAUSTIVE_TEST_ORDER) */ #ifdef __cplusplus diff --git a/src/util_local_visibility.h b/src/util_local_visibility.h new file mode 100644 index 0000000000..8912a64d1d --- /dev/null +++ b/src/util_local_visibility.h @@ -0,0 +1,12 @@ +#ifndef SECP256K1_LOCAL_VISIBILITY_H +#define SECP256K1_LOCAL_VISIBILITY_H + +/* Global variable visibility */ +/* See: https://github.com/bitcoin-core/secp256k1/issues/1181 */ +#if !defined(_WIN32) && defined(__GNUC__) && (__GNUC__ >= 4) +# define SECP256K1_LOCAL_VAR extern __attribute__ ((visibility ("hidden"))) +#else +# define SECP256K1_LOCAL_VAR extern +#endif + +#endif /* SECP256K1_LOCAL_VISIBILITY_H */ From 41d32ab2de050e48f2854bf381cc86871aa59135 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 10 Mar 2025 11:22:25 +0000 Subject: [PATCH 462/557] test: Add `tools/symbol-check.py` Co-authored-by: Tim Ruffing --- tools/symbol-check.py | 72 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100755 tools/symbol-check.py diff --git a/tools/symbol-check.py b/tools/symbol-check.py new file mode 100755 index 0000000000..e7f478082f --- /dev/null +++ b/tools/symbol-check.py @@ -0,0 +1,72 @@ +#!/usr/bin/env python3 +"""Check that a libsecp256k1 shared library exports only expected symbols. + +Usage examples: + - When building with Autotools: + ./tools/symbol-check.py .libs/libsecp256k1.so + ./tools/symbol-check.py .libs/libsecp256k1-.dll + ./tools/symbol-check.py .libs/libsecp256k1.dylib + + - When building with CMake: + ./tools/symbol-check.py build/lib/libsecp256k1.so + ./tools/symbol-check.py build/bin/libsecp256k1-.dll + ./tools/symbol-check.py build/lib/libsecp256k1.dylib""" + +import re +import sys +import subprocess + +import lief + + +class UnexpectedExport(RuntimeError): + pass + + +def get_exported_exports(library) -> list[str]: + """Adapter function to get exported symbols based on the library format.""" + if library.format == lief.Binary.FORMATS.ELF: + return [symbol.name for symbol in library.exported_symbols] + elif library.format == lief.Binary.FORMATS.PE: + return [entry.name for entry in library.get_export().entries] + elif library.format == lief.Binary.FORMATS.MACHO: + return [symbol.name[1:] for symbol in library.exported_symbols] + raise NotImplementedError(f"Unsupported format: {library.format}") + + +def grep_expected_symbols() -> list[str]: + """Guess the list of expected exported symbols from the source code.""" + grep_output = subprocess.check_output( + ["git", "grep", r"^\s*SECP256K1_API", "--", "include"], + universal_newlines=True, + encoding="utf-8" + ) + lines = grep_output.split("\n") + pattern = re.compile(r'\bsecp256k1_\w+') + exported: list[str] = [pattern.findall(line)[-1] for line in lines if line.strip()] + return exported + + +def check_symbols(library, expected_exports) -> None: + """Check that the library exports only the expected symbols.""" + actual_exports = get_exported_exports(library) + unexpected_exports = set(actual_exports) - set(expected_exports) + if unexpected_exports != set(): + raise UnexpectedExport(f"Unexpected exported symbols: {unexpected_exports}") + +def main(): + if len(sys.argv) != 2: + print(__doc__) + return 1 + library = lief.parse(sys.argv[1]) + expected_exports = grep_expected_symbols() + try: + check_symbols(library, expected_exports) + except UnexpectedExport as e: + print(f"{sys.argv[0]}: In {sys.argv[1]}: {e}") + return 1 + return 0 + + +if __name__ == "__main__": + sys.exit(main()) From 8ed1d83d92d19bd1c9ce5575e3858f881cc1674a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 10 Mar 2025 11:22:38 +0000 Subject: [PATCH 463/557] ci: Run `tools/symbol-check.py` --- .cirrus.yml | 3 +++ .github/workflows/ci.yml | 29 +++++++++++++++++++++++++++++ ci/ci.sh | 16 +++++++++++++++- ci/linux-debian.Dockerfile | 6 +++++- 4 files changed, 52 insertions(+), 2 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 81a4f04328..023cd1916c 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -29,6 +29,8 @@ env: BENCH: yes SECP256K1_BENCH_ITERS: 2 CTIMETESTS: yes + SYMBOL_CHECK: yes + VIRTUAL_ENV: /root/venv # Compile and run the tests EXAMPLES: yes @@ -53,6 +55,7 @@ cat_logs_snippet: &CAT_LOGS linux_arm64_container_snippet: &LINUX_ARM64_CONTAINER env_script: + - export PATH="$VIRTUAL_ENV/bin:$PATH" - env | tee /tmp/env build_script: - DOCKER_BUILDKIT=1 docker build --file "ci/linux-debian.Dockerfile" --tag="ci_secp256k1_arm" diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 2a3f6dc2f4..a3108d6bb1 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -40,6 +40,7 @@ env: BENCH: 'yes' SECP256K1_BENCH_ITERS: 2 CTIMETESTS: 'yes' + SYMBOL_CHECK: 'yes' # Compile and run the examples. EXAMPLES: 'yes' @@ -365,6 +366,7 @@ jobs: ASAN_OPTIONS: 'strict_string_checks=1:detect_stack_use_after_return=1:detect_leaks=1' LSAN_OPTIONS: 'use_unaligned=1' SECP256K1_TEST_ITERS: 32 + SYMBOL_CHECK: 'no' steps: - name: Checkout @@ -415,6 +417,7 @@ jobs: SECP256K1_TEST_ITERS: 32 ASM: 'no' WITH_VALGRIND: 'no' + SYMBOL_CHECK: 'no' steps: - name: Checkout @@ -483,6 +486,7 @@ jobs: CC: 'clang' HOMEBREW_NO_AUTO_UPDATE: 1 HOMEBREW_NO_INSTALL_CLEANUP: 1 + SYMBOL_CHECK: 'no' strategy: fail-fast: false @@ -515,6 +519,12 @@ jobs: env: ${{ matrix.env_vars }} run: ./ci/ci.sh + - name: Symbol check + run: | + python3 --version + python3 -m pip install lief + python3 ./tools/symbol-check.py .libs/libsecp256k1.dylib + - name: Print logs uses: ./.github/actions/print-logs if: ${{ !cancelled() }} @@ -530,6 +540,7 @@ jobs: HOMEBREW_NO_INSTALL_CLEANUP: 1 WITH_VALGRIND: 'no' CTIMETESTS: 'no' + SYMBOL_CHECK: 'no' strategy: fail-fast: false @@ -557,6 +568,16 @@ jobs: env: ${{ matrix.env_vars }} run: ./ci/ci.sh + - name: Symbol check + env: + VIRTUAL_ENV: '${{ github.workspace }}/venv' + run: | + python3 --version + python3 -m venv $VIRTUAL_ENV + export PATH="$VIRTUAL_ENV/bin:$PATH" + python3 -m pip install lief + python3 ./tools/symbol-check.py .libs/libsecp256k1.dylib + - name: Print logs uses: ./.github/actions/print-logs if: ${{ !cancelled() }} @@ -573,6 +594,7 @@ jobs: configuration: - job_name: 'x64 (MSVC): Windows (VS 2022, shared)' cmake_options: '-A x64 -DBUILD_SHARED_LIBS=ON' + symbol_check: 'true' - job_name: 'x64 (MSVC): Windows (VS 2022, static)' cmake_options: '-A x64 -DBUILD_SHARED_LIBS=OFF' - job_name: 'x64 (MSVC): Windows (VS 2022, int128_struct)' @@ -601,6 +623,13 @@ jobs: run: | cd build/bin/RelWithDebInfo && file *tests.exe bench*.exe libsecp256k1-*.dll || true + - name: Symbol check + if: ${{ matrix.configuration.symbol_check }} + run: | + py -3 --version + py -3 -m pip install lief + py -3 .\tools\symbol-check.py build\bin\RelWithDebInfo\libsecp256k1-5.dll + - name: Check run: | ctest -C RelWithDebInfo --test-dir build -j ([int]$env:NUMBER_OF_PROCESSORS + 1) diff --git a/ci/ci.sh b/ci/ci.sh index 3636deafa1..f50a5f075f 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -14,7 +14,7 @@ print_environment() { for var in WERROR_CFLAGS MAKEFLAGS BUILD \ ECMULTWINDOW ECMULTGENKB ASM WIDEMUL WITH_VALGRIND EXTRAFLAGS \ EXPERIMENTAL ECDH RECOVERY EXTRAKEYS MUSIG SCHNORRSIG ELLSWIFT \ - SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS\ + SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS SYMBOL_CHECK \ EXAMPLES \ HOST WRAPPER_CMD \ CC CFLAGS CPPFLAGS AR NM \ @@ -107,6 +107,20 @@ file *tests* || true file bench* || true file .libs/* || true +if [ "$SYMBOL_CHECK" = "yes" ] +then + python3 --version + case "$HOST" in + *mingw*) + ls -l .libs + python3 ./tools/symbol-check.py .libs/libsecp256k1-5.dll + ;; + *) + python3 ./tools/symbol-check.py .libs/libsecp256k1.so + ;; + esac +fi + # This tells `make check` to wrap test invocations. export LOG_COMPILER="$WRAPPER_CMD" diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 241bfa9719..547b402232 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -32,7 +32,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ gcc-powerpc64le-linux-gnu libc6-dev-ppc64el-cross libc6-dbg:ppc64el \ gcc-mingw-w64-x86-64-win32 wine64 wine \ gcc-mingw-w64-i686-win32 wine32 \ - python3 && \ + python3-full && \ if ! ( dpkg --print-architecture | grep --quiet "arm64" ) ; then \ apt-get install --no-install-recommends -y \ gcc-aarch64-linux-gnu libc6-dev-arm64-cross libc6-dbg:arm64 ;\ @@ -77,3 +77,7 @@ RUN \ apt-get autoremove -y wget && \ apt-get clean && rm -rf /var/lib/apt/lists/* +ENV VIRTUAL_ENV=/root/venv +RUN python3 -m venv $VIRTUAL_ENV +ENV PATH="$VIRTUAL_ENV/bin:$PATH" +RUN pip install lief From d1478763a5f400fafb42af5911db4a9460dd4a5d Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 10 Mar 2025 11:22:45 +0000 Subject: [PATCH 464/557] build: Drop no longer needed `-fvisibility=hidden` compiler option --- CMakeLists.txt | 2 -- configure.ac | 1 - 2 files changed, 3 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 520a96efdc..2b7737146d 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -271,8 +271,6 @@ else() try_append_c_flags(-Wundef) endif() -set(CMAKE_C_VISIBILITY_PRESET hidden) - set(print_msan_notice) if(SECP256K1_BUILD_CTIME_TESTS) include(CheckMemorySanitizer) diff --git a/configure.ac b/configure.ac index c62a391d78..8cb8006c5f 100644 --- a/configure.ac +++ b/configure.ac @@ -111,7 +111,6 @@ AC_DEFUN([SECP_TRY_APPEND_DEFAULT_CFLAGS], [ SECP_TRY_APPEND_CFLAGS([-Wcast-align=strict], $1) # GCC >= 8.0 SECP_TRY_APPEND_CFLAGS([-Wconditional-uninitialized], $1) # Clang >= 3.0 only SECP_TRY_APPEND_CFLAGS([-Wreserved-identifier], $1) # Clang >= 13.0 only - SECP_TRY_APPEND_CFLAGS([-fvisibility=hidden], $1) # GCC >= 4.0 CFLAGS="$SECP_TRY_APPEND_DEFAULT_CFLAGS_saved_CFLAGS" fi From 51907fa91875b8fd34cb23ec6c23793f7ea92949 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 13 Mar 2025 08:01:08 +0000 Subject: [PATCH 465/557] tests: remove unused uncounting_illegal_callback_fn This callback function has been unused since a1d52e3e125bb46dac2cf6daa699e9f15167e8d4 --- src/tests.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/src/tests.c b/src/tests.c index 06bcc5956a..52614401c0 100644 --- a/src/tests.c +++ b/src/tests.c @@ -87,15 +87,6 @@ static void counting_callback_fn(const char* str, void* data) { (*p)++; } -static void uncounting_illegal_callback_fn(const char* str, void* data) { - /* Dummy callback function that just counts (backwards). */ - int32_t *p; - (void)str; - p = data; - CHECK(*p != INT32_MIN); - (*p)--; -} - static void run_xoshiro256pp_tests(void) { { size_t i; From 1b6e081538cc9a171157ec858c4aac19deb7d6cc Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 13 Mar 2025 09:31:02 +0000 Subject: [PATCH 466/557] include: remove WARN_UNUSED_RESULT for functions always returning 1 This makes the usage of the atribute consistent. In the musig and ellswift module, functions that return 1 always already don't have the WARN_UNUSED_RESULT attribute. In secp256k1.h and the extrakeys module, this has only been the case partially. In all cases where this was removed, the function only returns 0 if the illegal callback has been called. --- include/secp256k1.h | 4 ++-- include/secp256k1_extrakeys.h | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 2477de49e7..1d25a02ab2 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -707,7 +707,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_negate( * Args: ctx: pointer to a context object * In/Out: pubkey: pointer to the public key to be negated. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_negate( +SECP256K1_API int secp256k1_ec_pubkey_negate( const secp256k1_context *ctx, secp256k1_pubkey *pubkey ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2); @@ -857,7 +857,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_combine( * msg: pointer to an array containing the message * msglen: length of the message array */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_tagged_sha256( +SECP256K1_API int secp256k1_tagged_sha256( const secp256k1_context *ctx, unsigned char *hash32, const unsigned char *tag, diff --git a/include/secp256k1_extrakeys.h b/include/secp256k1_extrakeys.h index 48c98693cf..1a517ded96 100644 --- a/include/secp256k1_extrakeys.h +++ b/include/secp256k1_extrakeys.h @@ -90,7 +90,7 @@ SECP256K1_API int secp256k1_xonly_pubkey_cmp( * the negation of the pubkey and set to 0 otherwise. * In: pubkey: pointer to a public key that is converted. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_xonly_pubkey_from_pubkey( +SECP256K1_API int secp256k1_xonly_pubkey_from_pubkey( const secp256k1_context *ctx, secp256k1_xonly_pubkey *xonly_pubkey, int *pk_parity, @@ -179,7 +179,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_create( * Out: seckey: pointer to a 32-byte buffer for the secret key. * In: keypair: pointer to a keypair. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_sec( +SECP256K1_API int secp256k1_keypair_sec( const secp256k1_context *ctx, unsigned char *seckey, const secp256k1_keypair *keypair @@ -192,7 +192,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_sec( * Out: pubkey: pointer to a pubkey object, set to the keypair public key. * In: keypair: pointer to a keypair. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_pub( +SECP256K1_API int secp256k1_keypair_pub( const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const secp256k1_keypair *keypair @@ -211,7 +211,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_pub( * pk_parity argument of secp256k1_xonly_pubkey_from_pubkey. * In: keypair: pointer to a keypair. */ -SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_keypair_xonly_pub( +SECP256K1_API int secp256k1_keypair_xonly_pub( const secp256k1_context *ctx, secp256k1_xonly_pubkey *pubkey, int *pk_parity, From d87c3bc58f369a91fb07d0812eec8b0d77e8968b Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 13 Mar 2025 11:56:07 +0100 Subject: [PATCH 467/557] ci: Fix exiting from ci.sh on error Fixes the following bash error when make fails: ./ci/ci.sh: line 100: return: can only `return' from a function or sourced script --- ci/ci.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/ci/ci.sh b/ci/ci.sh index f50a5f075f..3285ecc951 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -94,10 +94,10 @@ if [ $build_exit_code -ne 0 ]; then *snapshot*) # Ignore internal compiler errors in gcc-snapshot and clang-snapshot grep -e "internal compiler error:" -e "PLEASE submit a bug report" make.log - return $?; + exit $? ;; *) - return 1; + exit 1 ;; esac fi From 20b05c9d3f3376fa3719b3d455de93423167244c Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Thu, 13 Mar 2025 12:56:21 +0100 Subject: [PATCH 468/557] configure: Show exhaustive tests in summary Fixes #1658. --- configure.ac | 1 + 1 file changed, 1 insertion(+) diff --git a/configure.ac b/configure.ac index 8cb8006c5f..406227fcd1 100644 --- a/configure.ac +++ b/configure.ac @@ -476,6 +476,7 @@ echo "Build Options:" echo " with external callbacks = $enable_external_default_callbacks" echo " with benchmarks = $enable_benchmark" echo " with tests = $enable_tests" +echo " with exhaustive tests = $enable_exhaustive_tests" echo " with ctime tests = $enable_ctime_tests" echo " with coverage = $enable_coverage" echo " with examples = $enable_examples" From 6b3fe51fb6c4f0bf38e49acc562a74c8a8b743d3 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Thu, 13 Mar 2025 14:51:17 +0000 Subject: [PATCH 469/557] bench: add ellswift to bench help output --- src/bench.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/src/bench.c b/src/bench.c index 149f25fce4..8ba7623a0e 100644 --- a/src/bench.c +++ b/src/bench.c @@ -16,18 +16,22 @@ static void help(int default_iters) { printf("Benchmarks the following algorithms:\n"); printf(" - ECDSA signing/verification\n"); -#ifdef ENABLE_MODULE_ECDH - printf(" - ECDH key exchange (optional module)\n"); -#endif - #ifdef ENABLE_MODULE_RECOVERY printf(" - Public key recovery (optional module)\n"); #endif +#ifdef ENABLE_MODULE_ECDH + printf(" - ECDH key exchange (optional module)\n"); +#endif + #ifdef ENABLE_MODULE_SCHNORRSIG printf(" - Schnorr signatures (optional module)\n"); #endif +#ifdef ENABLE_MODULE_ELLSWIFT + printf(" - ElligatorSwift (optional module)\n"); +#endif + printf("\n"); printf("The default number of iterations for each benchmark is %d. This can be\n", default_iters); printf("customized using the SECP256K1_BENCH_ITERS environment variable.\n"); From c1bcb03276a0848102f26050334fc04a3081a77b Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Tue, 22 Apr 2025 12:13:44 +0200 Subject: [PATCH 470/557] gitignore: Add Python cache files --- .gitignore | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/.gitignore b/.gitignore index bffba8cb2c..ce33a84adf 100644 --- a/.gitignore +++ b/.gitignore @@ -65,3 +65,7 @@ libsecp256k1.pc /CMakeUserPresets.json # Default CMake build directory. /build + +### Python +__pycache__/ +*.py[oc] From e266ba11ae9fd20f011ac303d82caf8017d8b627 Mon Sep 17 00:00:00 2001 From: RandomLattice <128569685+RandomLattice@users.noreply.github.com> Date: Sat, 3 Feb 2024 18:52:22 -0500 Subject: [PATCH 471/557] tests: Add Wycheproof ECDH vectors Adds a test for the ECDH module using the Wycheproof vectors. We use a python script to convert the JSON-formatted vectors into C code, in the same spirit as https://github.com/bitcoin-core/secp256k1/pull/1245 Co-authored-by: Sean Andersen <6730974+andozw@users.noreply.github.com> --- Makefile.am | 14 +- src/modules/ecdh/Makefile.am.include | 1 + src/modules/ecdh/tests_impl.h | 41 + src/wycheproof/WYCHEPROOF_COPYING | 11 +- src/wycheproof/ecdh_secp256k1_test.h | 2008 ++++ src/wycheproof/ecdh_secp256k1_test.json | 8441 +++++++++++++++++ .../ecdsa_secp256k1_sha256_bitcoin_test.h | 2 +- tools/tests_wycheproof_generate_ecdh.py | 166 + ....py => tests_wycheproof_generate_ecdsa.py} | 10 +- tools/wycheproof_utils.py | 12 + 10 files changed, 10695 insertions(+), 11 deletions(-) create mode 100644 src/wycheproof/ecdh_secp256k1_test.h create mode 100644 src/wycheproof/ecdh_secp256k1_test.json create mode 100755 tools/tests_wycheproof_generate_ecdh.py rename tools/{tests_wycheproof_generate.py => tests_wycheproof_generate_ecdsa.py} (95%) create mode 100644 tools/wycheproof_utils.py diff --git a/Makefile.am b/Makefile.am index 5498617915..8123e4baa5 100644 --- a/Makefile.am +++ b/Makefile.am @@ -225,9 +225,17 @@ maintainer-clean-local: clean-precomp ### (see the comments in the previous section for detailed rationale) TESTVECTORS = src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h +if ENABLE_MODULE_ECDH +TESTVECTORS += src/wycheproof/ecdh_secp256k1_test.h +endif + src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h: mkdir -p $(@D) - python3 $(top_srcdir)/tools/tests_wycheproof_generate.py $(top_srcdir)/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ + python3 $(top_srcdir)/tools/tests_wycheproof_generate_ecdsa.py $(top_srcdir)/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json > $@ + +src/wycheproof/ecdh_secp256k1_test.h: + mkdir -p $(@D) + python3 $(top_srcdir)/tools/tests_wycheproof_generate_ecdh.py $(top_srcdir)/src/wycheproof/ecdh_secp256k1_test.json > $@ testvectors: $(TESTVECTORS) @@ -250,7 +258,9 @@ EXTRA_DIST += sage/secp256k1_params.sage EXTRA_DIST += sage/weierstrass_prover.sage EXTRA_DIST += src/wycheproof/WYCHEPROOF_COPYING EXTRA_DIST += src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json -EXTRA_DIST += tools/tests_wycheproof_generate.py +EXTRA_DIST += src/wycheproof/ecdh_secp256k1_test.json +EXTRA_DIST += tools/tests_wycheproof_generate_ecdsa.py +EXTRA_DIST += tools/tests_wycheproof_generate_ecdh.py if ENABLE_MODULE_ECDH include src/modules/ecdh/Makefile.am.include diff --git a/src/modules/ecdh/Makefile.am.include b/src/modules/ecdh/Makefile.am.include index 7f7f95f1fd..1866053529 100644 --- a/src/modules/ecdh/Makefile.am.include +++ b/src/modules/ecdh/Makefile.am.include @@ -2,3 +2,4 @@ include_HEADERS += include/secp256k1_ecdh.h noinst_HEADERS += src/modules/ecdh/main_impl.h noinst_HEADERS += src/modules/ecdh/tests_impl.h noinst_HEADERS += src/modules/ecdh/bench_impl.h +noinst_HEADERS += src/wycheproof/ecdh_secp256k1_test.h diff --git a/src/modules/ecdh/tests_impl.h b/src/modules/ecdh/tests_impl.h index 6be96eacbe..5392eedba7 100644 --- a/src/modules/ecdh/tests_impl.h +++ b/src/modules/ecdh/tests_impl.h @@ -7,6 +7,13 @@ #ifndef SECP256K1_MODULE_ECDH_TESTS_H #define SECP256K1_MODULE_ECDH_TESTS_H +static int ecdh_hash_function_test_xpassthru(unsigned char *output, const unsigned char *x, const unsigned char *y, void *data) { + (void)y; + (void)data; + memcpy(output, x, 32); + return 1; +} + static int ecdh_hash_function_test_fail(unsigned char *output, const unsigned char *x, const unsigned char *y, void *data) { (void)output; (void)x; @@ -142,11 +149,45 @@ static void test_result_basepoint(void) { } } +static void test_ecdh_wycheproof(void) { +#include "../../wycheproof/ecdh_secp256k1_test.h" + int t; + for (t = 0; t < SECP256K1_ECDH_WYCHEPROOF_NUMBER_TESTVECTORS; t++) { + int parsed_ok; + secp256k1_pubkey point; + const unsigned char *pk; + const unsigned char *sk; + const unsigned char *expected_shared_secret; + unsigned char output_ecdh[65] = { 0 }; + + int expected_result; + + memset(&point, 0, sizeof(point)); + pk = &wycheproof_ecdh_public_keys[testvectors[t].pk_offset]; + parsed_ok = secp256k1_ec_pubkey_parse(CTX, &point, pk, testvectors[t].pk_len); + + expected_result = testvectors[t].expected_result; + CHECK(parsed_ok == expected_result); + if (!parsed_ok) { + continue; + } + + sk = &wycheproof_ecdh_private_keys[testvectors[t].sk_offset]; + CHECK(testvectors[t].sk_len == 32); + + CHECK(secp256k1_ecdh(CTX, output_ecdh, &point, sk, ecdh_hash_function_test_xpassthru, NULL) == 1); + expected_shared_secret = &wycheproof_ecdh_shared_secrets[testvectors[t].shared_offset]; + + CHECK(secp256k1_memcmp_var(output_ecdh, expected_shared_secret, testvectors[t].shared_len) == 0); + } +} + static void run_ecdh_tests(void) { test_ecdh_api(); test_ecdh_generator_basepoint(); test_bad_scalar(); test_result_basepoint(); + test_ecdh_wycheproof(); } #endif /* SECP256K1_MODULE_ECDH_TESTS_H */ diff --git a/src/wycheproof/WYCHEPROOF_COPYING b/src/wycheproof/WYCHEPROOF_COPYING index cddf9d9182..efe3e8bf4e 100644 --- a/src/wycheproof/WYCHEPROOF_COPYING +++ b/src/wycheproof/WYCHEPROOF_COPYING @@ -3,9 +3,18 @@ `b063b4aedae951c69df014cd25fa6d69ae9e8cb9`, see https://github.com/google/wycheproof/blob/b063b4aedae951c69df014cd25fa6d69ae9e8cb9/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json +* The file `ecdh_secp256k1_test.json` in this directory + comes from Google's project Wycheproof with git commit + `d9f6ec7d8bd8c96da05368999094e4a75ba5cb3d`, see + https://github.com/google/wycheproof/blob/d9f6ec7d8bd8c96da05368999094e4a75ba5cb3d/testvectors_v1/ecdh_secp256k1_test.json + * The file `ecdsa_secp256k1_sha256_bitcoin_test.h` is generated from `ecdsa_secp256k1_sha256_bitcoin_test.json` using the script - `tests_wycheproof_generate.py`. + `tests_wycheproof_generate_ecdsa.py`. + +* The file `ecdh_secp256k1_test.h` is generated from + `ecdh_secp256k1_test.json` using the script + `tests_wycheproof_generate_ecdh.py`. ------------------------------------------------------------------------------- diff --git a/src/wycheproof/ecdh_secp256k1_test.h b/src/wycheproof/ecdh_secp256k1_test.h new file mode 100644 index 0000000000..02a087e53c --- /dev/null +++ b/src/wycheproof/ecdh_secp256k1_test.h @@ -0,0 +1,2008 @@ +/* Note: this file was autogenerated using tests_wycheproof_ecdh.py. Do not edit. */ +#define SECP256K1_ECDH_WYCHEPROOF_NUMBER_TESTVECTORS (503) + +typedef struct { + size_t pk_offset; + size_t pk_len; + size_t sk_offset; + size_t sk_len; + size_t shared_offset; + size_t shared_len; + int expected_result; + int wycheproof_tcid; +} wycheproof_ecdh_testvector; + +static const unsigned char wycheproof_ecdh_private_keys[] = { 0xf4,0xb7,0xff,0x7c,0xcc,0xc9,0x88,0x13,0xa6,0x9f,0xae,0x3d,0xf2,0x22,0xbf,0xe3,0xf4,0xe2,0x8f,0x76,0x4b,0xf9,0x1b,0x4a,0x10,0xd8,0x09,0x6c,0xe4,0x46,0xb2,0x54, + 0xa2,0xb6,0x44,0x2a,0x37,0xf8,0xa3,0x76,0x4a,0xef,0xf4,0x01,0x1a,0x4c,0x42,0x2b,0x38,0x9a,0x1e,0x50,0x96,0x69,0xc4,0x3f,0x27,0x9c,0x8b,0x7e,0x32,0xd8,0x0c,0x3a, + 0x2b,0xc1,0x5c,0xf3,0x98,0x1e,0xab,0x61,0xe5,0x94,0xeb,0xf5,0x91,0x29,0x0a,0x04,0x5c,0xa9,0x32,0x6a,0x8d,0x3d,0xd4,0x9f,0x3d,0xe1,0x19,0x0d,0x39,0x27,0x0b,0xb8, + 0x93,0x8f,0x3d,0xbe,0x37,0x13,0x5c,0xd8,0xc8,0xc4,0x8a,0x67,0x6b,0x28,0xb2,0x33,0x4b,0x72,0xa3,0xf0,0x98,0x14,0xc8,0xef,0xb6,0xa4,0x51,0xbe,0x00,0xc9,0x3d,0x23, + 0xc1,0x78,0x1d,0x86,0xca,0xc2,0xc0,0x52,0xb8,0x65,0xf2,0x28,0xe6,0x4b,0xd1,0xce,0x43,0x3c,0x78,0xca,0x7d,0xfc,0xa9,0xe8,0xb8,0x10,0x47,0x3e,0x2c,0xe1,0x7d,0xa5, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03, + 0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, + 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, + 0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3a,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x41,0x41, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xc2,0x5e,0x8c,0xd0,0x36,0x41,0x41, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xca,0x5e,0x8c,0xd0,0x36,0x41,0x41, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8b,0xd0,0x36,0x41,0x41, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x40,0xc3, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x41,0x03, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x41,0x23, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x41,0x33, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x41,0x3b, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x41,0x3e, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xba,0xae,0xdc,0xe6,0xaf,0x48,0xa0,0x3b,0xbf,0xd2,0x5e,0x8c,0xd0,0x36,0x41,0x3f, + 0xc6,0xca,0xfb,0x74,0xe2,0xa5,0x0c,0x83,0xb3,0xd2,0x32,0xc4,0x58,0x52,0x37,0xf4,0x4d,0x4c,0x54,0x33,0xc4,0xb3,0xf5,0x0c,0xe9,0x78,0xe6,0xae,0xda,0x3a,0x4f,0x5d, + 0xcf,0xe7,0x5e,0xe7,0x64,0x19,0x7a,0xa7,0x73,0x2a,0x54,0x78,0x55,0x6b,0x47,0x88,0x98,0x42,0x3d,0x2b,0xc0,0xe4,0x84,0xa6,0xeb,0xb3,0x67,0x4a,0x60,0x36,0xa6,0x5d, + 0xd0,0x91,0x82,0xa4,0xd0,0xc9,0x4b,0xa8,0x5f,0x82,0xef,0xf9,0xfc,0x1b,0xdd,0xb0,0xb0,0x7d,0x3f,0x2a,0xf8,0x63,0x2f,0xc1,0xc7,0x3a,0x36,0x04,0xe8,0xf0,0xb3,0x35}; + +static const unsigned char wycheproof_ecdh_public_keys[] = { 0x04,0xd8,0x09,0x6a,0xf8,0xa1,0x1e,0x0b,0x80,0x03,0x7e,0x1e,0xe6,0x82,0x46,0xb5,0xdc,0xbb,0x0a,0xeb,0x1c,0xf1,0x24,0x4f,0xd7,0x67,0xdb,0x80,0xf3,0xfa,0x27,0xda,0x2b,0x39,0x68,0x12,0xea,0x16,0x86,0xe7,0x47,0x2e,0x96,0x92,0xea,0xf3,0xe9,0x58,0xe5,0x0e,0x95,0x00,0xd3,0xb4,0xc7,0x72,0x43,0xdb,0x1f,0x2a,0xcd,0x67,0xba,0x9c,0xc4, + 0x02,0xd8,0x09,0x6a,0xf8,0xa1,0x1e,0x0b,0x80,0x03,0x7e,0x1e,0xe6,0x82,0x46,0xb5,0xdc,0xbb,0x0a,0xeb,0x1c,0xf1,0x24,0x4f,0xd7,0x67,0xdb,0x80,0xf3,0xfa,0x27,0xda,0x2b, + 0x04,0x96,0x5f,0xf4,0x2d,0x65,0x4e,0x05,0x8e,0xe7,0x31,0x7c,0xce,0xd7,0xca,0xf0,0x93,0xfb,0xb1,0x80,0xd8,0xd3,0xa7,0x4b,0x0d,0xcd,0x9d,0x8c,0xd4,0x7a,0x39,0xd5,0xcb,0x9c,0x2a,0xa4,0xda,0xac,0x01,0xa4,0xbe,0x37,0xc2,0x04,0x67,0xed,0xe9,0x64,0x66,0x2f,0x12,0x98,0x3e,0x0b,0x52,0x72,0xa4,0x7a,0x5f,0x27,0x85,0x68,0x5d,0x80,0x87, + 0x04,0x06,0xc4,0xb8,0x7b,0xa7,0x6c,0x6d,0xcb,0x10,0x1f,0x54,0xa0,0x50,0xa0,0x86,0xaa,0x2c,0xb0,0x72,0x2f,0x03,0x13,0x7d,0xf5,0xa9,0x22,0x47,0x2f,0x1b,0xdc,0x11,0xb9,0x82,0xe3,0xc7,0x35,0xc4,0xb6,0xc4,0x81,0xd0,0x92,0x69,0x55,0x9f,0x08,0x0a,0xd0,0x86,0x32,0xf3,0x70,0xa0,0x54,0xaf,0x12,0xc1,0xfd,0x1e,0xce,0xd2,0xea,0x92,0x11, + 0x04,0xbb,0xa3,0x0e,0xef,0x79,0x67,0xa2,0xf2,0xf0,0x8a,0x2f,0xfa,0xda,0xc0,0xe4,0x1f,0xd4,0xdb,0x12,0xa9,0x3c,0xef,0x0b,0x04,0x5b,0x57,0x06,0xf2,0x85,0x38,0x21,0xe6,0xd5,0x0b,0x2b,0xf8,0xcb,0xf5,0x30,0xe6,0x19,0x86,0x9e,0x07,0xc0,0x21,0xef,0x16,0xf6,0x93,0xcf,0xc0,0xa4,0xb0,0xd4,0xed,0x5a,0x8f,0x46,0x46,0x92,0xbf,0x3d,0x6e, + 0x04,0x6d,0xa9,0xeb,0x2c,0xda,0xc0,0x21,0x22,0xd5,0xf0,0x5c,0xf6,0xa8,0xcd,0x76,0x8e,0x37,0x8f,0x66,0x4e,0xa4,0xa7,0x87,0x1d,0x10,0xe2,0x5f,0x57,0xeb,0x1e,0xe1,0xcc,0x5b,0x2b,0x5a,0xbf,0x9c,0x6c,0x65,0x96,0xf8,0xf3,0x83,0xdd,0xbc,0xb3,0xbc,0xc2,0xd5,0xa7,0xcc,0x60,0x59,0x84,0x93,0x12,0x39,0xca,0x96,0x69,0x94,0x60,0x32,0xee, + 0x04,0xf2,0x97,0x61,0x54,0xc4,0xf5,0x3c,0xe3,0x92,0xd1,0xfe,0x39,0xa8,0x91,0xa4,0x61,0x1b,0xa8,0xcf,0x04,0x60,0x23,0xcd,0x8f,0x1b,0xcd,0x9f,0xdd,0x2e,0x92,0x11,0x91,0xb2,0x5c,0xf3,0x1c,0xae,0xdf,0xbb,0x41,0x53,0x81,0x63,0x7b,0xc3,0xf5,0x99,0xa3,0x4f,0xba,0x3e,0x14,0x13,0xf6,0x44,0xcb,0x16,0x68,0x46,0x9f,0x45,0x58,0xa7,0x72, + 0x04,0x5e,0x42,0x2f,0xea,0x67,0xcc,0xa5,0xeb,0xae,0xac,0x87,0x74,0x5c,0x81,0xb1,0x0e,0xf8,0x07,0x03,0x03,0x67,0xe6,0xfc,0xe0,0x12,0x25,0x41,0x76,0xec,0x8c,0xf1,0x99,0x88,0x15,0x92,0xf4,0x2c,0x26,0x43,0x71,0xe1,0x9e,0x30,0x37,0x38,0x8a,0xb6,0x4f,0x32,0xfa,0x88,0x70,0xe6,0x29,0x05,0xe7,0xaf,0x20,0x5e,0x43,0xb0,0x2a,0xad,0x12, + 0x04,0xbb,0x57,0xb9,0xa1,0x23,0x1b,0xe0,0x42,0xd1,0x85,0xc0,0x3e,0xda,0x69,0x26,0xa6,0xde,0xf1,0x77,0xfe,0x67,0x45,0xed,0xa0,0x00,0xc5,0x20,0xd6,0x65,0x81,0xf0,0xcd,0xf1,0xd7,0x3c,0x80,0x45,0x3f,0x2f,0xe3,0x07,0x25,0xad,0xf9,0x51,0x39,0x0c,0x73,0x9e,0x36,0xfc,0x86,0x77,0x69,0x1d,0xb1,0x07,0x88,0x13,0x42,0x61,0x3d,0x00,0xab, + 0x04,0x55,0x63,0xc7,0x6c,0x19,0x37,0x76,0x38,0xf7,0xd5,0x17,0xbd,0xbe,0x0a,0xce,0x46,0x7e,0xb5,0xd4,0xdd,0x9f,0xb4,0xbf,0x18,0x33,0x2b,0xab,0x8f,0x07,0xb1,0xd8,0x0c,0x26,0x13,0x32,0xd4,0x6e,0x31,0x67,0x11,0x27,0x8b,0xac,0xcc,0xd8,0x80,0x05,0xee,0x4c,0x11,0x5f,0xa8,0x40,0x89,0xfd,0x19,0x06,0x74,0x62,0x6e,0x5e,0xd1,0xeb,0xfe, + 0x04,0x89,0x83,0xaa,0xe8,0xc0,0x02,0xf2,0xb5,0x55,0xac,0xb2,0x37,0x0a,0xdb,0x9b,0x50,0xba,0x4c,0xac,0x1b,0xfc,0xc9,0x03,0x9a,0x12,0x5c,0x70,0xca,0x7c,0x5f,0xc0,0xd1,0xf6,0xef,0xeb,0x8a,0xe4,0xba,0x8c,0x69,0x42,0x9d,0x93,0x24,0x43,0x82,0x44,0x7a,0xc5,0x34,0x89,0x1c,0x66,0x09,0x00,0x25,0x28,0x26,0x55,0x71,0x9b,0xd7,0x25,0x12, + 0x04,0x23,0x55,0x65,0x64,0x85,0x0c,0x50,0xfb,0xa5,0x1f,0x1e,0x64,0xef,0x98,0x37,0x8e,0xf5,0xc2,0x2f,0xea,0xfa,0x29,0x49,0x9c,0xa2,0x76,0x00,0xc4,0x73,0xca,0xce,0x88,0x9d,0x56,0x79,0xe9,0x17,0xda,0xa7,0xf4,0xc7,0x89,0x95,0x17,0xd3,0x78,0x26,0x28,0x4f,0x03,0x1d,0xe0,0x1a,0x60,0xbc,0x81,0x36,0x96,0x41,0x4d,0x04,0x53,0x1a,0x21, + 0x04,0xdd,0xbf,0x80,0x7e,0x22,0xc5,0x6a,0x19,0xcf,0x6c,0x47,0x28,0x29,0x15,0x03,0x50,0x78,0x10,0x34,0xa5,0xed,0xde,0xc3,0x65,0x69,0x4d,0x4b,0xd5,0xc8,0x65,0xea,0xd1,0x4e,0x67,0x41,0x27,0x02,0x8c,0x91,0xd3,0x39,0x4c,0xac,0x37,0x29,0x3a,0x86,0x60,0x55,0xd1,0x0f,0x0f,0x40,0xa3,0x70,0x6a,0xd1,0x6b,0x64,0xfc,0x9d,0x59,0x98,0xbd, + 0x04,0x64,0x68,0x8e,0xae,0x7a,0xab,0xd2,0x48,0xf6,0xf4,0x4a,0x0d,0x6e,0x2c,0x43,0x8e,0x41,0x00,0x00,0x18,0x13,0xeb,0x71,0xf9,0xf0,0x82,0xfa,0xd3,0xdf,0xe4,0x3e,0x28,0x7d,0xab,0x3d,0xab,0xe7,0xd4,0x36,0x00,0x1a,0x0f,0xb7,0x63,0x01,0x5d,0xed,0xbb,0x90,0xf8,0x11,0x00,0x0e,0xc8,0xf5,0xf2,0x99,0x53,0xe3,0xaf,0x42,0xf9,0x20,0x65, + 0x04,0xc4,0x04,0xe1,0x71,0x41,0xd1,0x02,0xbb,0xa2,0xf1,0xcb,0x16,0xbb,0x95,0x4a,0x20,0x87,0x98,0xb0,0x4d,0xca,0x8d,0xd1,0x39,0xa8,0xab,0x7f,0x01,0xf0,0xdb,0xef,0x39,0xc7,0xb8,0xe5,0x5f,0x22,0x57,0xa4,0x80,0x07,0x7e,0x41,0x90,0x57,0x0a,0x00,0x4c,0xbe,0x66,0x82,0x00,0xc9,0xc7,0x8e,0xaa,0x53,0xb6,0x1b,0x20,0xfc,0xe4,0xc6,0x85, + 0x04,0xe1,0x60,0xe8,0x7c,0x0a,0x56,0x2a,0x1d,0xbb,0x59,0xb4,0xc2,0xf6,0x14,0x72,0x0e,0x77,0x53,0x60,0x86,0x72,0xeb,0x8d,0x88,0x3b,0x91,0xe2,0x5f,0x8c,0xfc,0x58,0x47,0x46,0x23,0xcb,0xa5,0x84,0xe1,0x32,0x4b,0xc4,0x9b,0xcd,0xf0,0x89,0x11,0x66,0xb5,0x45,0xb7,0x70,0x4e,0x2b,0xbd,0xa7,0x05,0xd0,0xd7,0x3b,0x75,0x30,0xe4,0x79,0x52, + 0x04,0x5d,0x4d,0x18,0x2b,0x18,0x78,0x2a,0x02,0x68,0x5d,0xcc,0x7b,0x67,0x1e,0xc7,0x42,0xce,0x30,0x8c,0x7a,0xcc,0x8e,0x62,0x60,0xf6,0x7e,0x81,0x51,0x6e,0xb5,0x46,0xe8,0xa3,0x8f,0x07,0x56,0x07,0x4e,0xea,0x48,0x57,0x95,0x33,0x98,0xb6,0xd0,0x55,0x97,0xc7,0xce,0xb5,0xe6,0x5e,0x4e,0x8c,0xee,0x31,0xe8,0x1c,0x56,0x58,0x82,0x4c,0xe4, + 0x04,0x8e,0xcd,0x6a,0x25,0x76,0xf4,0x26,0x26,0x79,0x20,0x76,0x93,0x5e,0x2f,0xe9,0x61,0x59,0x9e,0x48,0x4c,0xd2,0x12,0xbc,0xe2,0x62,0x3b,0x83,0xaa,0x22,0xf5,0x46,0xd2,0xa7,0xf8,0x55,0xb0,0x9b,0xef,0x28,0x6b,0xcb,0xe9,0xe8,0xba,0xb1,0x7f,0xd5,0x6d,0x70,0x55,0xdf,0x64,0xf3,0x44,0x31,0x0c,0x35,0x22,0xe8,0xf2,0x27,0xe4,0x72,0xc8, + 0x04,0x68,0x26,0xf7,0x9e,0xf8,0x4d,0xa8,0x03,0x46,0x0a,0xed,0x09,0x19,0x8d,0x2b,0xbb,0x42,0xd7,0x89,0x2e,0xd6,0x08,0xaa,0xcb,0xb2,0x81,0xa9,0x5a,0xca,0xe1,0x14,0x65,0xa2,0x58,0x09,0x19,0x1a,0xa5,0xbd,0xfa,0x61,0xb8,0x96,0x3b,0xea,0xcb,0x4e,0xb1,0x33,0x26,0x6a,0x90,0xf3,0x3d,0x1b,0x2c,0xa4,0xf6,0x15,0x2d,0x37,0xa9,0x4f,0xd8, + 0x04,0xa5,0x4b,0xb2,0xae,0x80,0x08,0x60,0x53,0xa5,0xfa,0x4f,0xdb,0x18,0x36,0xa8,0xc6,0xac,0x41,0x78,0x36,0x50,0xb0,0xf7,0x9a,0x54,0x28,0xc9,0x8f,0xf6,0x4d,0x07,0x8a,0x12,0xbb,0xb4,0xcb,0x8a,0xf2,0x0c,0xa7,0x5e,0xc1,0x5b,0x2e,0x0d,0x47,0xa8,0x3c,0xa9,0x3f,0xc7,0x8c,0xd9,0x26,0x40,0xa0,0x2e,0x80,0x02,0x96,0x6f,0x1f,0xe8,0x0b, + 0x04,0xba,0xce,0x46,0xee,0xd4,0x92,0x74,0x3c,0x69,0x3e,0x1a,0x33,0xad,0xb0,0x46,0xb7,0x72,0x2c,0x55,0xce,0x36,0x9d,0x14,0x38,0xe6,0x7f,0x9c,0x5b,0x34,0x12,0x78,0x31,0x45,0x26,0x2d,0xd4,0xa8,0x6c,0x8a,0x52,0x7b,0x23,0xf4,0x11,0x4b,0x8a,0x9b,0x9f,0x36,0xf9,0x70,0x18,0x35,0xf5,0x0b,0x67,0x8b,0x24,0xd2,0xa9,0x15,0x5e,0xbc,0x2c, + 0x04,0x01,0x05,0x51,0x47,0x86,0x3a,0xa0,0x60,0xc0,0xe1,0x04,0xe2,0x43,0xec,0x01,0xed,0xa2,0xb0,0xe0,0xc6,0x81,0x4e,0x23,0x2d,0x67,0x1a,0xbc,0xba,0x97,0x15,0xd5,0xce,0x0c,0x13,0x00,0x6a,0xa7,0x96,0x0c,0x54,0xfe,0x3f,0x20,0x22,0x0b,0xef,0x76,0x67,0x56,0xc9,0x10,0xfd,0x05,0x76,0x4a,0xfc,0x31,0x83,0x75,0x54,0x0c,0xef,0x2d,0x5c, + 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0x04,0x49,0xc2,0x48,0xed,0xc6,0x59,0xe1,0x84,0x82,0xb7,0x10,0x57,0x48,0xa4,0xb9,0x5d,0x3a,0x46,0x95,0x2a,0x5b,0xa7,0x2d,0xa0,0xd7,0x02,0xdc,0x97,0xa6,0x4e,0x99,0x79,0x9d,0x8c,0xff,0x7a,0x5c,0x4b,0x92,0x5e,0x43,0x60,0xec,0xe2,0x5c,0xcf,0x30,0x7d,0x7a,0x9a,0x70,0x63,0x28,0x6b,0xbd,0x16,0xef,0x64,0xc6,0x5f,0x54,0x67,0x57,0xe4, + 0x04,0x49,0xc2,0x48,0xed,0xc6,0x59,0xe1,0x84,0x82,0xb7,0x10,0x57,0x48,0xa4,0xb9,0x5d,0x3a,0x46,0x95,0x2a,0x5b,0xa7,0x2d,0xa0,0xd7,0x02,0xdc,0x97,0xa6,0x4e,0x99,0x79,0x9d,0x8c,0xff,0x7a,0x5c,0x4b,0x92,0x5e,0x43,0x60,0xec,0xe2,0x5c,0xcf,0x30,0x7d,0x7a,0x9a,0x70,0x63,0x28,0x6b,0xbd,0x16,0xef,0x64,0xc6,0x5f,0x54,0x67,0x57,0xe2, + 0x04,0x07,0x4f,0x56,0xdc,0x2e,0xa6,0x48,0xef,0x89,0xc3,0xb7,0x2e,0x23,0xbb,0xd2,0xda,0x36,0xf6,0x02,0x43,0xe4,0xd2,0x06,0x7b,0x70,0x60,0x4a,0xf1,0xc2,0x16,0x5c,0xec,0x2f,0x86,0x60,0x3d,0x60,0xc8,0xa6,0x11,0xd5,0xb8,0x4b,0xa3,0xd9,0x1d,0xfe,0x1a,0x48,0x08,0x25,0xbc,0xc4,0xaf,0x3b,0xcf, + 0x04,0xcb,0xf6,0x60,0x65,0x95,0xa3,0xee,0x50,0xf9,0xfc,0xea,0xa2,0x79,0x8c,0x27,0x40,0xc8,0x25,0x40,0x51,0x6b,0x4e,0x5a,0x7d,0x36,0x1f,0xf2,0x4e,0x9d,0xd1,0x53,0x64,0xe5,0x40,0x8b,0x2e,0x67,0x9f,0x9d,0x53,0x10,0xd1,0xf6,0x89,0x3b,0x36,0xce,0x16,0xb4,0xa5,0x07,0x50,0x91,0x75,0xfc,0xb5,0x2a,0xea,0x53,0xb7,0x81,0x55,0x6b,0x39, + 0x04,0xfb,0x60,0x75,0xd2,0x6c,0x35,0x01,0xc0,0x14,0xe4,0x8c,0x79,0xb3,0x46,0x3c,0xd7,0x68,0x37,0x8c,0x39,0x0d,0x7e,0x6e,0xeb,0x37,0x97,0x17,0xd4,0x90,0xc4,0xe6,0x34,0x78,0x04,0x35,0x77,0x19,0x79,0x87,0x88,0x16,0x70,0xbc,0x13,0xfd,0x0b,0x5f,0x0b,0xa1,0x0f,0x06,0xbc,0xef,0x27,0x11,0xc2,0x8f,0x5e,0xfd,0x7e,0x31,0xd5,0x15,0x7c, + 0x02,0x97,0x7c,0xb7,0xfb,0x9a,0x0e,0xc5,0xb2,0x08,0xe8,0x11,0xd6,0xa0,0x79,0x5e,0xb7,0x8d,0x76,0x42,0xe3,0xca,0xc4,0x2a,0x80,0x1b,0xcc,0x8f,0xc0,0xf0,0x64,0x72,0xd4}; + +static const unsigned char wycheproof_ecdh_shared_secrets[] = { 0x54,0x4d,0xfa,0xe2,0x2a,0xf6,0xaf,0x93,0x90,0x42,0xb1,0xd8,0x5b,0x71,0xa1,0xe4,0x9e,0x9a,0x56,0x14,0x12,0x3c,0x4d,0x6a,0xd0,0xc8,0xaf,0x65,0xba,0xf8,0x7d,0x65, + 0x54,0x4d,0xfa,0xe2,0x2a,0xf6,0xaf,0x93,0x90,0x42,0xb1,0xd8,0x5b,0x71,0xa1,0xe4,0x9e,0x9a,0x56,0x14,0x12,0x3c,0x4d,0x6a,0xd0,0xc8,0xaf,0x65,0xba,0xf8,0x7d,0x65, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xff,0xff,0xfc,0x2c, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x07, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01, + 0x0b,0x7b,0xeb,0xa3,0x4f,0xeb,0x64,0x7d,0xa2,0x00,0xbe,0xd0,0x5f,0xad,0x57,0xc0,0x34,0x8d,0x24,0x9e,0x2a,0x90,0xc8,0x8f,0x31,0xf9,0x94,0x8b,0xb6,0x5d,0x52,0x07, + 0x21,0x0c,0x79,0x05,0x73,0x63,0x23,0x59,0xb1,0xed,0xb4,0x30,0x2c,0x11,0x7d,0x8a,0x13,0x26,0x54,0x69,0x2c,0x3f,0xee,0xb7,0xde,0x3a,0x86,0xac,0x3f,0x3b,0x53,0xf7, + 0x42,0x18,0xf2,0x0a,0xe6,0xc6,0x46,0xb3,0x63,0xdb,0x68,0x60,0x58,0x22,0xfb,0x14,0x26,0x4c,0xa8,0xd2,0x58,0x7f,0xdd,0x6f,0xbc,0x75,0x0d,0x58,0x7e,0x76,0xa7,0xee, + 0x39,0xf8,0x83,0xf1,0x05,0xac,0x7f,0x09,0xf4,0xe7,0xe4,0xdc,0xc8,0x4b,0xc7,0xff,0x4b,0x3b,0x74,0xf3,0x01,0xef,0xaa,0xaf,0x8b,0x63,0x8f,0x47,0x72,0x0f,0xda,0xec, + 0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x55,0x50, + 0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa, + 0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0x33, + 0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcb, + 0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0f,0x0c, + 0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,0xf0, + 0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff, + 0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00, + 0x7f,0xff,0x00,0x01,0xff,0xfc,0x00,0x07,0xff,0xf0,0x00,0x1f,0xff,0xc0,0x00,0x7f,0xff,0x00,0x01,0xff,0xfc,0x00,0x07,0xff,0xf0,0x00,0x1f,0xff,0xc0,0x00,0x7f,0xff, + 0x80,0x00,0xff,0xfe,0x00,0x03,0xff,0xf8,0x00,0x0f,0xff,0xe0,0x00,0x3f,0xff,0x80,0x00,0xff,0xfe,0x00,0x03,0xff,0xf8,0x00,0x0f,0xff,0xe0,0x00,0x3f,0xff,0x7f,0xff, + 0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xfd, + 0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xfe,0xff,0xfe, + 0x80,0x00,0x00,0x3f,0xff,0xff,0xf0,0x00,0x00,0x07,0xff,0xff,0xfe,0x00,0x00,0x00,0xff,0xff,0xff,0xc0,0x00,0x00,0x1f,0xff,0xff,0xf8,0x00,0x00,0x03,0xff,0xff,0xfd, + 0x7f,0xff,0xff,0xe0,0x00,0x00,0x0f,0xff,0xff,0xfc,0x00,0x00,0x01,0xff,0xff,0xff,0x80,0x00,0x00,0x3f,0xff,0xff,0xf0,0x00,0x00,0x07,0xff,0xff,0xfd,0xff,0xff,0xfe, + 0x00,0x00,0x03,0xff,0xff,0xff,0x00,0x00,0x00,0x3f,0xff,0xff,0xf0,0x00,0x00,0x03,0xff,0xff,0xff,0x00,0x00,0x00,0x3f,0xff,0xff,0xf0,0x00,0x00,0x03,0xff,0xff,0xfc, + 0xff,0xff,0xfc,0x00,0x00,0x00,0xff,0xff,0xff,0xc0,0x00,0x00,0x0f,0xff,0xff,0xfc,0x00,0x00,0x00,0xff,0xff,0xff,0xc0,0x00,0x00,0x0f,0xff,0xff,0xfb,0xff,0xff,0xfe, + 0xff,0xff,0x00,0x00,0x00,0x03,0xff,0xff,0xff,0xf0,0x00,0x00,0x00,0x3f,0xff,0xff,0xff,0x00,0x00,0x00,0x03,0xff,0xff,0xff,0xf0,0x00,0x00,0x00,0x3f,0xff,0xff,0xff, + 0x00,0x00,0xff,0xff,0xff,0xfc,0x00,0x00,0x00,0x0f,0xff,0xff,0xff,0xc0,0x00,0x00,0x00,0xff,0xff,0xff,0xfc,0x00,0x00,0x00,0x0f,0xff,0xff,0xff,0xbf,0xff,0xff,0xfd, + 0xff,0x00,0x00,0x00,0x01,0xff,0xff,0xff,0xfc,0x00,0x00,0x00,0x07,0xff,0xff,0xff,0xf0,0x00,0x00,0x00,0x1f,0xff,0xff,0xff,0xc0,0x00,0x00,0x00,0x7f,0xff,0xff,0xfd, + 0x00,0xff,0xff,0xff,0xfe,0x00,0x00,0x00,0x03,0xff,0xff,0xff,0xf8,0x00,0x00,0x00,0x0f,0xff,0xff,0xff,0xe0,0x00,0x00,0x00,0x3f,0xff,0xff,0xff,0x80,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff, + 0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xff, + 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0x44,0x62,0x55,0x8c,0x89,0x90,0x21,0x17,0x05,0x1c,0xb2,0xc5,0x99,0xad,0x66,0xf0,0x08,0x87,0xb5,0x4c,0xae,0x3d,0xa9,0xc0,0x4d,0x31,0x7a,0x5b,0x2a,0xfb,0x46,0x3b, + 0x30,0xb4,0x74,0x1a,0x64,0xf8,0x7d,0x28,0xec,0x00,0x29,0xbd,0x19,0x6b,0x5a,0x74,0x55,0x5f,0x2c,0x9a,0x97,0x6a,0x46,0xd6,0x28,0x57,0x24,0x74,0x46,0x6a,0x63,0x1d, + 0x3a,0xfc,0x04,0xac,0x92,0x11,0x7e,0x50,0xb0,0x91,0x3b,0x09,0xdb,0xbb,0x4e,0x6c,0x78,0x0c,0x05,0x15,0x00,0x20,0x1f,0xad,0x51,0x2b,0x79,0x08,0x0b,0xff,0x39,0xe2, + 0x60,0x96,0x37,0x04,0x85,0x86,0xed,0xc6,0x4c,0xf5,0xf2,0x8f,0x1a,0x50,0x57,0x68,0xc6,0x86,0x47,0x11,0x10,0x07,0x0d,0x78,0x3d,0xe4,0x99,0xff,0xe6,0xfe,0x84,0xda, + 0xb1,0xd4,0xf2,0x7a,0x69,0x83,0xc8,0xee,0x41,0x7e,0xf0,0xf5,0x27,0xd8,0x89,0xd4,0xa1,0xae,0x41,0xd3,0x63,0x92,0x44,0x57,0x8c,0x43,0xd6,0x50,0xc2,0x99,0xfc,0xd1, + 0x00,0x07,0xc9,0xa2,0x7a,0xc5,0x06,0x7c,0x9f,0x0a,0xd1,0xa4,0xd1,0xe6,0x21,0x10,0xda,0x13,0x18,0x89,0x3a,0x65,0x87,0x29,0x71,0x3d,0x82,0xe3,0x33,0x85,0x5b,0x82, + 0x8a,0x3b,0x23,0xa9,0x1f,0x0d,0x5d,0xb8,0x07,0x4a,0x6a,0x88,0x68,0x89,0xee,0x3e,0x19,0xaa,0xf0,0x9b,0x66,0xac,0x9a,0xad,0x2e,0x15,0xc8,0xbd,0xba,0x68,0x08,0x5c, + 0xc2,0xaf,0x76,0x3f,0x41,0x4c,0xb2,0xd7,0xfd,0x46,0x25,0x7f,0x03,0x13,0xb5,0x82,0xc0,0x99,0xb5,0xe2,0x3b,0x73,0xe0,0x73,0xb5,0xab,0x7c,0x23,0x0c,0x45,0xc8,0x83, + 0x34,0x00,0x56,0x94,0xe3,0xca,0xc0,0x93,0x32,0xaa,0x42,0x80,0x7e,0x3a,0xfd,0xc3,0xb3,0xb3,0xbc,0x7c,0x7b,0xe8,0x87,0xd1,0xf9,0x8d,0x76,0x77,0x8c,0x55,0xcf,0xd7, + 0x58,0x41,0xac,0xd3,0xcf,0xf2,0xd6,0x28,0x61,0xbb,0xe1,0x10,0x84,0x73,0x80,0x06,0xd6,0x8c,0xcf,0x35,0xac,0xae,0x61,0x5e,0xe9,0x52,0x47,0x26,0xe9,0x3d,0x0d,0xa5, + 0x43,0x48,0xe4,0xcb,0xa3,0x71,0xea,0xd0,0x39,0x82,0x01,0x8a,0xbc,0x9a,0xac,0xec,0xae,0xbf,0xd6,0x36,0xdd,0xa8,0x2e,0x60,0x9f,0xd2,0x98,0x94,0x7f,0x90,0x7d,0xe8, + 0xe5,0x62,0x21,0xc2,0xb0,0xdc,0x33,0xb9,0x8b,0x90,0xdf,0xd3,0x23,0x9a,0x2c,0x0c,0xb1,0xe4,0xad,0x03,0x99,0xa3,0xaa,0xef,0x3f,0x9d,0x47,0xfb,0x10,0x3d,0xae,0xf0, + 0x5b,0x34,0xa2,0x9b,0x1c,0x4d,0xdc,0xb2,0x10,0x11,0x62,0xd3,0x4b,0xed,0x9f,0x07,0x02,0x36,0x1f,0xe5,0xaf,0x50,0x5d,0xf3,0x15,0xef,0xf7,0xbe,0xfd,0x0e,0x47,0x19, + 0xce,0xce,0x52,0x1b,0x8b,0x5a,0x32,0xbb,0xee,0x38,0x93,0x6b,0xa7,0xd6,0x45,0x82,0x4f,0x23,0x8e,0x56,0x17,0x01,0xa3,0x86,0xfb,0x88,0x8e,0x01,0x0d,0xb5,0x4b,0x2f, + 0x82,0x95,0x21,0xb7,0x9d,0x71,0xf5,0x01,0x1e,0x07,0x97,0x56,0xb8,0x51,0xa0,0xd5,0xc8,0x35,0x57,0x86,0x61,0x89,0xa6,0x25,0x8c,0x1e,0x78,0xa1,0x70,0x0c,0x69,0x04, + 0x8c,0x59,0x34,0x79,0x35,0x05,0xa6,0xa1,0xf8,0x4d,0x41,0x28,0x33,0x41,0x68,0x0c,0x49,0x23,0xf1,0xf4,0xd5,0x62,0x98,0x9a,0x11,0xcc,0x62,0x6f,0xea,0x5e,0xda,0x5a, + 0x35,0x6c,0xae,0xe7,0xe7,0xee,0xe0,0x31,0xa1,0x5e,0x54,0xc3,0xa5,0xc4,0xe7,0x2f,0x9c,0x74,0xbb,0x28,0x7c,0xe6,0x01,0x61,0x9e,0xf8,0x5e,0xb9,0x6c,0x28,0x94,0x52, + 0x09,0xc7,0x33,0x7d,0xf6,0xc2,0xb3,0x5e,0xdf,0x3a,0x21,0x38,0x25,0x11,0xcc,0x5a,0xdd,0x1a,0x71,0xa8,0x4c,0xbf,0x8d,0x33,0x96,0xa5,0xbe,0x54,0x8d,0x92,0xfa,0x67, + 0xd1,0x6c,0xae,0xdd,0x25,0x79,0x36,0x66,0xf9,0xe2,0x6f,0x53,0x31,0x38,0x21,0x06,0xf5,0x40,0x95,0xb3,0xd2,0x0d,0x40,0xc7,0x45,0xb6,0x8c,0xa7,0x6c,0x0e,0x69,0x83, + 0xb8,0xae,0x1e,0x21,0xd8,0xb3,0x4c,0xe4,0xca,0xff,0xed,0x71,0x67,0xa2,0x68,0x68,0xec,0x80,0xa7,0xd4,0xa6,0xa9,0x8b,0x63,0x9d,0x4d,0x05,0xcd,0x22,0x65,0x04,0xde, + 0x02,0x77,0x63,0x15,0xfe,0x14,0x7a,0x36,0xa4,0xb0,0x98,0x74,0x92,0xb6,0x50,0x3a,0xcd,0xea,0x60,0xf9,0x26,0x45,0x0e,0x5e,0xdd,0xb9,0xf8,0x8f,0xc8,0x21,0x78,0xd3, + 0x39,0x88,0xc9,0xc7,0x05,0x0a,0x28,0x79,0x49,0x34,0xe5,0xbd,0x67,0x62,0x9b,0x55,0x6d,0x97,0xa4,0x85,0x8d,0x22,0x81,0x28,0x35,0xf4,0xa3,0x7d,0xca,0x35,0x19,0x43, + 0x34,0x00,0x56,0x94,0xe3,0xca,0xc0,0x93,0x32,0xaa,0x42,0x80,0x7e,0x3a,0xfd,0xc3,0xb3,0xb3,0xbc,0x7c,0x7b,0xe8,0x87,0xd1,0xf9,0x8d,0x76,0x77,0x8c,0x55,0xcf,0xd7, + 0x4b,0x52,0x25,0x7d,0x8b,0x3b,0xa3,0x87,0x79,0x7f,0xdf,0x7a,0x75,0x2f,0x19,0x5d,0xdc,0x4f,0x7d,0x76,0x26,0x3d,0xe6,0x1d,0x0d,0x52,0xa5,0xec,0x14,0xa3,0x6c,0xbf, + 0x38,0x0c,0x53,0xe0,0xa5,0x09,0xeb,0xb3,0xb6,0x33,0x46,0x59,0x81,0x05,0x21,0x9b,0x43,0xd5,0x1a,0xe1,0x96,0xb4,0x55,0x7d,0x59,0xbb,0xd6,0x78,0x24,0x03,0x2d,0xff, + 0x38,0x0c,0x53,0xe0,0xa5,0x09,0xeb,0xb3,0xb6,0x33,0x46,0x59,0x81,0x05,0x21,0x9b,0x43,0xd5,0x1a,0xe1,0x96,0xb4,0x55,0x7d,0x59,0xbb,0xd6,0x78,0x24,0x03,0x2d,0xff, + 0x38,0x0c,0x53,0xe0,0xa5,0x09,0xeb,0xb3,0xb6,0x33,0x46,0x59,0x81,0x05,0x21,0x9b,0x43,0xd5,0x1a,0xe1,0x96,0xb4,0x55,0x7d,0x59,0xbb,0xd6,0x78,0x24,0x03,0x2d,0xff, + 0x38,0x0c,0x53,0xe0,0xa5,0x09,0xeb,0xb3,0xb6,0x33,0x46,0x59,0x81,0x05,0x21,0x9b,0x43,0xd5,0x1a,0xe1,0x96,0xb4,0x55,0x7d,0x59,0xbb,0xd6,0x78,0x24,0x03,0x2d,0xff, + 0x38,0x0c,0x53,0xe0,0xa5,0x09,0xeb,0xb3,0xb6,0x33,0x46,0x59,0x81,0x05,0x21,0x9b,0x43,0xd5,0x1a,0xe1,0x96,0xb4,0x55,0x7d,0x59,0xbb,0xd6,0x78,0x24,0x03,0x2d,0xff, + 0x38,0x0c,0x53,0xe0,0xa5,0x09,0xeb,0xb3,0xb6,0x33,0x46,0x59,0x81,0x05,0x21,0x9b,0x43,0xd5,0x1a,0xe1,0x96,0xb4,0x55,0x7d,0x59,0xbb,0xd6,0x78,0x24,0x03,0x2d,0xff}; + +static const wycheproof_ecdh_testvector testvectors[SECP256K1_ECDH_WYCHEPROOF_NUMBER_TESTVECTORS] = { + /* tcId: 1. normal case */ + {0, 65, 0, 32, 0, 32, 1, 1 }, + /* tcId: 2. compressed public key */ + {65, 33, 0, 32, 32, 32, 1, 2 }, + /* tcId: 3. shared secret has x-coordinate that satisfies x**2 + a = 1 */ + {98, 65, 32, 32, 64, 32, 1, 3 }, + /* tcId: 4. shared secret has x-coordinate that satisfies x**2 + a = 4 */ + {163, 65, 32, 32, 96, 32, 1, 4 }, + /* tcId: 5. shared secret has x-coordinate that satisfies x**2 + a = 9 */ + {228, 65, 32, 32, 128, 32, 1, 5 }, + /* tcId: 6. shared secret has x-coordinate p-3 */ + {293, 65, 32, 32, 160, 32, 1, 6 }, + /* tcId: 7. shared secret has x-coordinate 2**16 + 0 */ + {358, 65, 32, 32, 192, 32, 1, 7 }, + /* tcId: 8. shared secret has x-coordinate 2**32 + 7 */ + {423, 65, 32, 32, 224, 32, 1, 8 }, + /* tcId: 9. shared secret has x-coordinate 2**64 + 1 */ + {488, 65, 32, 32, 256, 32, 1, 9 }, + /* tcId: 10. shared secret has x-coordinate 2**96 + 1 */ + {553, 65, 32, 32, 288, 32, 1, 10 }, + /* tcId: 11. shared secret has x-coordinate that satisfies x**2 + a = -6 */ + {618, 65, 32, 32, 320, 32, 1, 11 }, + /* tcId: 12. shared secret has x-coordinate that satisfies x**2 + a = 2 */ + {683, 65, 32, 32, 352, 32, 1, 12 }, + /* tcId: 13. shared secret has x-coordinate that satisfies x**2 + a = 8 */ + {748, 65, 32, 32, 384, 32, 1, 13 }, + /* tcId: 14. shared secret has x-coordinate that satisfies x**2 = 2**96 + 2 */ + {813, 65, 32, 32, 416, 32, 1, 14 }, + /* tcId: 15. shared secret has x-coordinate with repeating bit-pattern of size 2 */ + {878, 65, 32, 32, 448, 32, 1, 15 }, + /* tcId: 16. shared secret has x-coordinate with repeating bit-pattern of size 2 */ + {943, 65, 32, 32, 480, 32, 1, 16 }, + /* tcId: 17. shared secret has x-coordinate with repeating bit-pattern of size 4 */ + {1008, 65, 32, 32, 512, 32, 1, 17 }, + /* tcId: 18. shared secret has x-coordinate with repeating bit-pattern of size 4 */ + {1073, 65, 32, 32, 544, 32, 1, 18 }, + /* tcId: 19. shared secret has x-coordinate with repeating bit-pattern of size 8 */ + {1138, 65, 32, 32, 576, 32, 1, 19 }, + /* tcId: 20. shared secret has x-coordinate with repeating bit-pattern of size 8 */ + {1203, 65, 32, 32, 608, 32, 1, 20 }, + /* tcId: 21. shared secret has x-coordinate with repeating bit-pattern of size 16 */ + {1268, 65, 32, 32, 640, 32, 1, 21 }, + /* tcId: 22. shared secret has x-coordinate with repeating bit-pattern of size 16 */ + {1333, 65, 32, 32, 672, 32, 1, 22 }, + /* tcId: 23. shared secret has x-coordinate with repeating bit-pattern of size 30 */ + {1398, 65, 32, 32, 704, 32, 1, 23 }, + /* tcId: 24. shared secret has x-coordinate with repeating bit-pattern of size 30 */ + {1463, 65, 32, 32, 736, 32, 1, 24 }, + /* tcId: 25. shared secret has x-coordinate with repeating bit-pattern of size 32 */ + {1528, 65, 32, 32, 768, 32, 1, 25 }, + /* tcId: 26. shared secret has x-coordinate with repeating bit-pattern of size 32 */ + {1593, 65, 32, 32, 800, 32, 1, 26 }, + /* tcId: 27. shared secret has x-coordinate with repeating bit-pattern of size 51 */ + {1658, 65, 32, 32, 832, 32, 1, 27 }, + /* tcId: 28. shared secret has x-coordinate with repeating bit-pattern of size 51 */ + {1723, 65, 32, 32, 864, 32, 1, 28 }, + /* tcId: 29. shared secret has x-coordinate with repeating bit-pattern of size 52 */ + {1788, 65, 32, 32, 896, 32, 1, 29 }, + /* tcId: 30. shared secret has x-coordinate with repeating bit-pattern of size 52 */ + {1853, 65, 32, 32, 928, 32, 1, 30 }, + /* tcId: 31. shared secret has x-coordinate with repeating bit-pattern of size 60 */ + {1918, 65, 32, 32, 960, 32, 1, 31 }, + /* tcId: 32. shared secret has x-coordinate with repeating bit-pattern of size 60 */ + {1983, 65, 32, 32, 992, 32, 1, 32 }, + /* tcId: 33. shared secret has x-coordinate with repeating bit-pattern of size 62 */ + {2048, 65, 32, 32, 1024, 32, 1, 33 }, + /* tcId: 34. shared secret has x-coordinate with repeating bit-pattern of size 62 */ + {2113, 65, 32, 32, 1056, 32, 1, 34 }, + /* tcId: 35. shared secret has x-coordinate with repeating bit-pattern of size 64 */ + {2178, 65, 32, 32, 1088, 32, 1, 35 }, + /* tcId: 36. shared secret has x-coordinate with repeating bit-pattern of size 64 */ + {2243, 65, 32, 32, 1120, 32, 1, 36 }, + /* tcId: 37. shared secret has x-coordinate with repeating bit-pattern of size 112 */ + {2308, 65, 32, 32, 1152, 32, 1, 37 }, + /* tcId: 38. shared secret has x-coordinate with repeating bit-pattern of size 112 */ + {2373, 65, 32, 32, 1184, 32, 1, 38 }, + /* tcId: 39. shared secret has x-coordinate with repeating bit-pattern of size 128 */ + {2438, 65, 32, 32, 1216, 32, 1, 39 }, + /* tcId: 40. shared secret has x-coordinate with repeating bit-pattern of size 128 */ + {2503, 65, 32, 32, 1248, 32, 1, 40 }, + /* tcId: 41. shared secret has an x-coordinate of approx p//3 */ + {2568, 65, 32, 32, 1280, 32, 1, 41 }, + /* tcId: 42. shared secret has an x-coordinate of approx p//5 */ + {2633, 65, 32, 32, 1312, 32, 1, 42 }, + /* tcId: 43. shared secret has an x-coordinate of approx p//7 */ + {2698, 65, 32, 32, 1344, 32, 1, 43 }, + /* tcId: 44. shared secret has an x-coordinate of approx p//9 */ + {2763, 65, 32, 32, 1376, 32, 1, 44 }, + /* tcId: 45. y-coordinate of the public key has many trailing 1's */ + {2828, 65, 32, 32, 1408, 32, 1, 45 }, + /* tcId: 46. y-coordinate of the public key has many trailing 1's */ + {2893, 65, 64, 32, 1440, 32, 1, 46 }, + /* tcId: 47. y-coordinate of the public key is small */ + {2958, 65, 32, 32, 1472, 32, 1, 47 }, + /* tcId: 48. y-coordinate of the public key is small */ + {3023, 65, 32, 32, 1504, 32, 1, 48 }, + /* tcId: 49. y-coordinate of the public key is small */ + {3088, 65, 64, 32, 1536, 32, 1, 49 }, + /* tcId: 50. y-coordinate of the public key is small */ + {3153, 65, 64, 32, 1568, 32, 1, 50 }, + /* tcId: 51. y-coordinate of the public key is large */ + {3218, 65, 32, 32, 1600, 32, 1, 51 }, + /* tcId: 52. y-coordinate of the public key is large */ + {3283, 65, 32, 32, 1632, 32, 1, 52 }, + /* tcId: 53. y-coordinate of the public key is large */ + {3348, 65, 64, 32, 1664, 32, 1, 53 }, + /* tcId: 54. y-coordinate of the public key is large */ + {3413, 65, 64, 32, 1696, 32, 1, 54 }, + /* tcId: 55. y-coordinate of the public key has many trailing 0's */ + {3478, 65, 32, 32, 1728, 32, 1, 55 }, + /* tcId: 56. y-coordinate of the public key has many trailing 0's */ + {3543, 65, 64, 32, 1760, 32, 1, 56 }, + /* tcId: 57. ephemeral key has x-coordinate that satisfies x**2 + a = 1 */ + {3608, 65, 64, 32, 1792, 32, 1, 57 }, + /* tcId: 58. ephemeral key has x-coordinate that satisfies x**2 + a = 4 */ + {3673, 65, 64, 32, 1824, 32, 1, 58 }, + /* tcId: 59. ephemeral key has x-coordinate that satisfies x**2 + a = 9 */ + {3738, 65, 64, 32, 1856, 32, 1, 59 }, + /* tcId: 60. ephemeral key has x-coordinate p-3 */ + {3803, 65, 64, 32, 1888, 32, 1, 60 }, + /* tcId: 61. ephemeral key has x-coordinate 2**16 + 0 */ + {3868, 65, 64, 32, 1920, 32, 1, 61 }, + /* tcId: 62. ephemeral key has x-coordinate 2**32 + 7 */ + {3933, 65, 64, 32, 1952, 32, 1, 62 }, + /* tcId: 63. ephemeral key has x-coordinate 2**64 + 1 */ + {3998, 65, 64, 32, 1984, 32, 1, 63 }, + /* tcId: 64. ephemeral key has x-coordinate 2**96 + 1 */ + {4063, 65, 64, 32, 2016, 32, 1, 64 }, + /* tcId: 65. ephemeral key has x-coordinate that satisfies x**2 + a = -6 */ + {4128, 65, 64, 32, 2048, 32, 1, 65 }, + /* tcId: 66. ephemeral key has x-coordinate that satisfies x**2 + a = 2 */ + {4193, 65, 64, 32, 2080, 32, 1, 66 }, + /* tcId: 67. ephemeral key has x-coordinate that satisfies x**2 + a = 8 */ + {4258, 65, 64, 32, 2112, 32, 1, 67 }, + /* tcId: 68. ephemeral key has x-coordinate that satisfies x**2 = 2**96 + 2 */ + {4323, 65, 64, 32, 2144, 32, 1, 68 }, + /* tcId: 69. ephemeral key has x-coordinate with repeating bit-pattern of size 2 */ + {4388, 65, 64, 32, 2176, 32, 1, 69 }, + /* tcId: 70. ephemeral key has x-coordinate with repeating bit-pattern of size 2 */ + {4453, 65, 64, 32, 2208, 32, 1, 70 }, + /* tcId: 71. ephemeral key has x-coordinate with repeating bit-pattern of size 4 */ + {4518, 65, 64, 32, 2240, 32, 1, 71 }, + /* tcId: 72. ephemeral key has x-coordinate with repeating bit-pattern of size 4 */ + {4583, 65, 64, 32, 2272, 32, 1, 72 }, + /* tcId: 73. ephemeral key has x-coordinate with repeating bit-pattern of size 8 */ + {4648, 65, 64, 32, 2304, 32, 1, 73 }, + /* tcId: 74. ephemeral key has x-coordinate with repeating bit-pattern of size 8 */ + {4713, 65, 64, 32, 2336, 32, 1, 74 }, + /* tcId: 75. ephemeral key has x-coordinate with repeating bit-pattern of size 16 */ + {4778, 65, 64, 32, 2368, 32, 1, 75 }, + /* tcId: 76. ephemeral key has x-coordinate with repeating bit-pattern of size 16 */ + {4843, 65, 64, 32, 2400, 32, 1, 76 }, + /* tcId: 77. ephemeral key has x-coordinate with repeating bit-pattern of size 30 */ + {4908, 65, 64, 32, 2432, 32, 1, 77 }, + /* tcId: 78. ephemeral key has x-coordinate with repeating bit-pattern of size 30 */ + {4973, 65, 64, 32, 2464, 32, 1, 78 }, + /* tcId: 79. ephemeral key has x-coordinate with repeating bit-pattern of size 32 */ + {5038, 65, 64, 32, 2496, 32, 1, 79 }, + /* tcId: 80. ephemeral key has x-coordinate with repeating bit-pattern of size 32 */ + {5103, 65, 64, 32, 2528, 32, 1, 80 }, + /* tcId: 81. ephemeral key has x-coordinate with repeating bit-pattern of size 51 */ + {5168, 65, 64, 32, 2560, 32, 1, 81 }, + /* tcId: 82. ephemeral key has x-coordinate with repeating bit-pattern of size 51 */ + {5233, 65, 64, 32, 2592, 32, 1, 82 }, + /* tcId: 83. ephemeral key has x-coordinate with repeating bit-pattern of size 52 */ + {5298, 65, 64, 32, 2624, 32, 1, 83 }, + /* tcId: 84. ephemeral key has x-coordinate with repeating bit-pattern of size 52 */ + {5363, 65, 64, 32, 2656, 32, 1, 84 }, + /* tcId: 85. ephemeral key has x-coordinate with repeating bit-pattern of size 60 */ + {5428, 65, 64, 32, 2688, 32, 1, 85 }, + /* tcId: 86. ephemeral key has x-coordinate with repeating bit-pattern of size 60 */ + {5493, 65, 64, 32, 2720, 32, 1, 86 }, + /* tcId: 87. ephemeral key has x-coordinate with repeating bit-pattern of size 62 */ + {5558, 65, 64, 32, 2752, 32, 1, 87 }, + /* tcId: 88. ephemeral key has x-coordinate with repeating bit-pattern of size 62 */ + {5623, 65, 64, 32, 2784, 32, 1, 88 }, + /* tcId: 89. ephemeral key has x-coordinate with repeating bit-pattern of size 64 */ + {5688, 65, 64, 32, 2816, 32, 1, 89 }, + /* tcId: 90. ephemeral key has x-coordinate with repeating bit-pattern of size 64 */ + {5753, 65, 64, 32, 2848, 32, 1, 90 }, + /* tcId: 91. ephemeral key has x-coordinate with repeating bit-pattern of size 112 */ + {5818, 65, 64, 32, 2880, 32, 1, 91 }, + /* tcId: 92. ephemeral key has x-coordinate with repeating bit-pattern of size 112 */ + {5883, 65, 64, 32, 2912, 32, 1, 92 }, + /* tcId: 93. ephemeral key has x-coordinate with repeating bit-pattern of size 128 */ + {5948, 65, 64, 32, 2944, 32, 1, 93 }, + /* tcId: 94. ephemeral key has x-coordinate with repeating bit-pattern of size 128 */ + {6013, 65, 64, 32, 2976, 32, 1, 94 }, + /* tcId: 95. ephemeral key has an x-coordinate of approx p//3 */ + {6078, 65, 64, 32, 3008, 32, 1, 95 }, + /* tcId: 96. ephemeral key has an x-coordinate of approx p//5 */ + {6143, 65, 64, 32, 3040, 32, 1, 96 }, + /* tcId: 97. ephemeral key has an x-coordinate of approx p//7 */ + {6208, 65, 64, 32, 3072, 32, 1, 97 }, + /* tcId: 98. ephemeral key has an x-coordinate of approx p//9 */ + {6273, 65, 64, 32, 3104, 32, 1, 98 }, + /* tcId: 99. edge case for Jacobian and projective coordinates */ + {6338, 65, 96, 32, 3136, 32, 1, 99 }, + /* tcId: 100. edge case for Jacobian and projective coordinates */ + {6403, 65, 96, 32, 3168, 32, 1, 100 }, + /* tcId: 101. edge case for Jacobian and projective coordinates */ + {6468, 65, 96, 32, 3200, 32, 1, 101 }, + /* tcId: 102. edge case for Jacobian and projective coordinates */ + {6533, 65, 128, 32, 3232, 32, 1, 102 }, + /* tcId: 103. edge case for Jacobian and projective coordinates */ + {6598, 65, 128, 32, 3264, 32, 1, 103 }, + /* tcId: 104. edge case for Jacobian and projective coordinates */ + {6663, 65, 128, 32, 3296, 32, 1, 104 }, + /* tcId: 105. edge case for Jacobian and projective coordinates in left to right addition chain */ + {6728, 65, 96, 32, 3328, 32, 1, 105 }, + /* tcId: 106. edge case for Jacobian and projective coordinates in left to right addition chain */ + {6793, 65, 96, 32, 3360, 32, 1, 106 }, + /* tcId: 107. edge case for Jacobian and projective coordinates in left to right addition chain */ + {6858, 65, 96, 32, 3392, 32, 1, 107 }, + /* tcId: 108. edge case for Jacobian and projective coordinates in left to right addition chain */ + {6923, 65, 96, 32, 3424, 32, 1, 108 }, + /* tcId: 109. edge case for Jacobian and projective coordinates in left to right addition chain */ + {6988, 65, 96, 32, 3456, 32, 1, 109 }, + /* tcId: 110. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7053, 65, 96, 32, 3488, 32, 1, 110 }, + /* tcId: 111. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7118, 65, 96, 32, 3520, 32, 1, 111 }, + /* tcId: 112. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7183, 65, 96, 32, 3552, 32, 1, 112 }, + /* tcId: 113. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7248, 65, 96, 32, 3584, 32, 1, 113 }, + /* tcId: 114. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7313, 65, 96, 32, 3616, 32, 1, 114 }, + /* tcId: 115. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7378, 65, 96, 32, 3648, 32, 1, 115 }, + /* tcId: 116. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7443, 65, 96, 32, 3680, 32, 1, 116 }, + /* tcId: 117. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7508, 65, 96, 32, 3712, 32, 1, 117 }, + /* tcId: 118. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7573, 65, 96, 32, 3744, 32, 1, 118 }, + /* tcId: 119. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7638, 65, 96, 32, 3776, 32, 1, 119 }, + /* tcId: 120. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7703, 65, 96, 32, 3808, 32, 1, 120 }, + /* tcId: 121. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7768, 65, 128, 32, 3840, 32, 1, 121 }, + /* tcId: 122. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7833, 65, 128, 32, 3872, 32, 1, 122 }, + /* tcId: 123. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7898, 65, 128, 32, 3904, 32, 1, 123 }, + /* tcId: 124. edge case for Jacobian and projective coordinates in left to right addition chain */ + {7963, 65, 128, 32, 3936, 32, 1, 124 }, + /* tcId: 125. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8028, 65, 128, 32, 3968, 32, 1, 125 }, + /* tcId: 126. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8093, 65, 128, 32, 4000, 32, 1, 126 }, + /* tcId: 127. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8158, 65, 128, 32, 4032, 32, 1, 127 }, + /* tcId: 128. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8223, 65, 128, 32, 4064, 32, 1, 128 }, + /* tcId: 129. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8288, 65, 128, 32, 4096, 32, 1, 129 }, + /* tcId: 130. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8353, 65, 128, 32, 4128, 32, 1, 130 }, + /* tcId: 131. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8418, 65, 128, 32, 4160, 32, 1, 131 }, + /* tcId: 132. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8483, 65, 128, 32, 4192, 32, 1, 132 }, + /* tcId: 133. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8548, 65, 128, 32, 4224, 32, 1, 133 }, + /* tcId: 134. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8613, 65, 128, 32, 4256, 32, 1, 134 }, + /* tcId: 135. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8678, 65, 128, 32, 4288, 32, 1, 135 }, + /* tcId: 136. edge case for Jacobian and projective coordinates in left to right addition chain */ + {8743, 65, 128, 32, 4320, 32, 1, 136 }, + /* tcId: 137. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {8808, 65, 128, 32, 4352, 32, 1, 137 }, + /* tcId: 138. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {8873, 65, 128, 32, 4384, 32, 1, 138 }, + /* tcId: 139. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {8938, 65, 128, 32, 4416, 32, 1, 139 }, + /* tcId: 140. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9003, 65, 128, 32, 4448, 32, 1, 140 }, + /* tcId: 141. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9068, 65, 128, 32, 4480, 32, 1, 141 }, + /* tcId: 142. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9133, 65, 128, 32, 4512, 32, 1, 142 }, + /* tcId: 143. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9198, 65, 128, 32, 4544, 32, 1, 143 }, + /* tcId: 144. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9263, 65, 128, 32, 4576, 32, 1, 144 }, + /* tcId: 145. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9328, 65, 128, 32, 4608, 32, 1, 145 }, + /* tcId: 146. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9393, 65, 128, 32, 4640, 32, 1, 146 }, + /* tcId: 147. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9458, 65, 128, 32, 4672, 32, 1, 147 }, + /* tcId: 148. edge case for Jacobian and projective coordinates in precomputation or right to left addition chain */ + {9523, 65, 128, 32, 4704, 32, 1, 148 }, + /* tcId: 149. edge case for Jacobian and projective coordinates in right to left addition chain */ + {9588, 65, 128, 32, 4736, 32, 1, 149 }, + /* tcId: 150. edge case for Jacobian and projective coordinates in right to left addition chain */ + {9653, 65, 128, 32, 4768, 32, 1, 150 }, + /* tcId: 151. edge case for Jacobian and projective coordinates in right to left addition chain */ + {9718, 65, 128, 32, 4800, 32, 1, 151 }, + /* tcId: 152. edge case for Jacobian and projective coordinates in right to left addition chain */ + {9783, 65, 128, 32, 4832, 32, 1, 152 }, + /* tcId: 153. edge case for Jacobian and projective coordinates in right to left addition chain */ + {9848, 65, 128, 32, 4864, 32, 1, 153 }, + /* tcId: 154. edge case for Jacobian and projective coordinates in right to left addition chain */ + {9913, 65, 128, 32, 4896, 32, 1, 154 }, + /* tcId: 155. edge case for Jacobian and projective coordinates in right to left addition chain */ + {9978, 65, 128, 32, 4928, 32, 1, 155 }, + /* tcId: 156. edge case for Jacobian and projective coordinates in right to left addition chain */ + {10043, 65, 128, 32, 4960, 32, 1, 156 }, + /* tcId: 157. edge case for Jacobian and projective coordinates in right to left addition chain */ + {10108, 65, 128, 32, 4992, 32, 1, 157 }, + /* tcId: 158. edge case for Jacobian and projective coordinates in right to left addition chain */ + {10173, 65, 128, 32, 5024, 32, 1, 158 }, + /* tcId: 159. edge case for computation of x with projective coordinates */ + {10238, 65, 128, 32, 5056, 32, 1, 159 }, + /* tcId: 160. edge case for computation of x with projective coordinates */ + {10303, 65, 128, 32, 5088, 32, 1, 160 }, + /* tcId: 161. edge case for computation of x with projective coordinates */ + {10368, 65, 128, 32, 5120, 32, 1, 161 }, + /* tcId: 162. edge case for computation of x with projective coordinates */ + {10433, 65, 128, 32, 5152, 32, 1, 162 }, + /* tcId: 163. edge case for computation of x with projective coordinates */ + {10498, 65, 128, 32, 5184, 32, 1, 163 }, + /* tcId: 164. edge case for computation of x with projective coordinates */ + {10563, 65, 128, 32, 5216, 32, 1, 164 }, + /* tcId: 165. edge case for computation of x with projective coordinates */ + {10628, 65, 128, 32, 5248, 32, 1, 165 }, + /* tcId: 166. edge case for computation of x with projective coordinates */ + {10693, 65, 128, 32, 5280, 32, 1, 166 }, + /* tcId: 167. edge case for computation of x with projective coordinates */ + {10758, 65, 128, 32, 5312, 32, 1, 167 }, + /* tcId: 168. edge case for computation of x with projective coordinates in left to right addition chain */ + {10823, 65, 128, 32, 5344, 32, 1, 168 }, + /* tcId: 169. edge case for computation of x with projective coordinates in left to right addition chain */ + {10888, 65, 128, 32, 5376, 32, 1, 169 }, + /* tcId: 170. edge case for computation of x with projective coordinates in left to right addition chain */ + {10953, 65, 128, 32, 5408, 32, 1, 170 }, + /* tcId: 171. edge case for computation of x with projective coordinates in left to right addition chain */ + {11018, 65, 128, 32, 5440, 32, 1, 171 }, + /* tcId: 172. edge case for computation of x with projective coordinates in left to right addition chain */ + {11083, 65, 128, 32, 5472, 32, 1, 172 }, + /* tcId: 173. edge case for computation of x with projective coordinates in left to right addition chain */ + {11148, 65, 128, 32, 5504, 32, 1, 173 }, + /* tcId: 174. edge case for computation of x with projective coordinates in left to right addition chain */ + {11213, 65, 128, 32, 5536, 32, 1, 174 }, + /* tcId: 175. edge case for computation of x with projective coordinates in left to right addition chain */ + {11278, 65, 128, 32, 5568, 32, 1, 175 }, + /* tcId: 176. edge case for computation of x with projective coordinates in left to right addition chain */ + {11343, 65, 128, 32, 5600, 32, 1, 176 }, + /* tcId: 177. edge case for computation of x with projective coordinates in left to right addition chain */ + {11408, 65, 128, 32, 5632, 32, 1, 177 }, + /* tcId: 178. edge case for computation of x with projective coordinates in left to right addition chain */ + {11473, 65, 128, 32, 5664, 32, 1, 178 }, + /* tcId: 179. edge case for computation of x with projective coordinates in left to right addition chain */ + {11538, 65, 128, 32, 5696, 32, 1, 179 }, + /* tcId: 180. edge case for computation of x with projective coordinates in left to right addition chain */ + {11603, 65, 128, 32, 5728, 32, 1, 180 }, + /* tcId: 181. edge case for computation of x with projective coordinates in left to right addition chain */ + {11668, 65, 128, 32, 5760, 32, 1, 181 }, + /* tcId: 182. edge case for computation of x with projective coordinates in left to right addition chain */ + {11733, 65, 128, 32, 5792, 32, 1, 182 }, + /* tcId: 183. edge case for computation of x with projective coordinates in left to right addition chain */ + {11798, 65, 128, 32, 5824, 32, 1, 183 }, + /* tcId: 184. edge case for computation of x with projective coordinates in left to right addition chain */ + {11863, 65, 128, 32, 5856, 32, 1, 184 }, + /* tcId: 185. edge case for computation of x with projective coordinates in left to right addition chain */ + {11928, 65, 128, 32, 5888, 32, 1, 185 }, + /* tcId: 186. edge case for computation of x with projective coordinates in left to right addition chain */ + {11993, 65, 128, 32, 5920, 32, 1, 186 }, + /* tcId: 187. edge case for computation of x with projective coordinates in left to right addition chain */ + {12058, 65, 128, 32, 5952, 32, 1, 187 }, + /* tcId: 188. edge case for computation of x with projective coordinates in left to right addition chain */ + {12123, 65, 128, 32, 5984, 32, 1, 188 }, + /* tcId: 189. edge case for computation of x with projective coordinates in left to right addition chain */ + {12188, 65, 128, 32, 6016, 32, 1, 189 }, + /* tcId: 190. edge case for computation of x with projective coordinates in left to right addition chain */ + {12253, 65, 128, 32, 6048, 32, 1, 190 }, + /* tcId: 191. edge case for computation of x with projective coordinates in left to right addition chain */ + {12318, 65, 128, 32, 6080, 32, 1, 191 }, + /* tcId: 192. edge case for computation of x with projective coordinates in left to right addition chain */ + {12383, 65, 128, 32, 6112, 32, 1, 192 }, + /* tcId: 193. edge case for computation of x with projective coordinates in left to right addition chain */ + {12448, 65, 128, 32, 6144, 32, 1, 193 }, + /* tcId: 194. edge case for computation of x with projective coordinates in left to right addition chain */ + {12513, 65, 128, 32, 6176, 32, 1, 194 }, + /* tcId: 195. edge case for computation of x with projective coordinates in left to right addition chain */ + {12578, 65, 128, 32, 6208, 32, 1, 195 }, + /* tcId: 196. edge case for computation of x with projective coordinates in left to right addition chain */ + {12643, 65, 128, 32, 6240, 32, 1, 196 }, + /* tcId: 197. edge case for computation of x with projective coordinates in left to right addition chain */ + {12708, 65, 128, 32, 6272, 32, 1, 197 }, + /* tcId: 198. edge case for computation of x with projective coordinates in left to right addition chain */ + {12773, 65, 128, 32, 6304, 32, 1, 198 }, + /* tcId: 199. edge case for computation of x with projective coordinates in left to right addition chain */ + {12838, 65, 128, 32, 6336, 32, 1, 199 }, + /* tcId: 200. edge case for computation of x with projective coordinates in left to right addition chain */ + {12903, 65, 128, 32, 6368, 32, 1, 200 }, + /* tcId: 201. edge case for computation of x with projective coordinates in left to right addition chain */ + {12968, 65, 128, 32, 6400, 32, 1, 201 }, + /* tcId: 202. edge case for computation of x with projective coordinates in left to right addition chain */ + {13033, 65, 128, 32, 6432, 32, 1, 202 }, + /* tcId: 203. edge case for computation of x with projective coordinates in left to right addition chain */ + {13098, 65, 128, 32, 6464, 32, 1, 203 }, + /* tcId: 204. edge case for computation of x with projective coordinates in left to right addition chain */ + {13163, 65, 128, 32, 6496, 32, 1, 204 }, + /* tcId: 205. edge case for computation of x with projective coordinates in left to right addition chain */ + {13228, 65, 128, 32, 6528, 32, 1, 205 }, + /* tcId: 206. edge case for computation of x with projective coordinates in left to right addition chain */ + {13293, 65, 128, 32, 6560, 32, 1, 206 }, + /* tcId: 207. edge case for computation of x with projective coordinates in left to right addition chain */ + {13358, 65, 128, 32, 6592, 32, 1, 207 }, + /* tcId: 208. edge case for computation of x with projective coordinates in left to right addition chain */ + {13423, 65, 128, 32, 6624, 32, 1, 208 }, + /* tcId: 209. edge case for computation of x with projective coordinates in left to right addition chain */ + {13488, 65, 128, 32, 6656, 32, 1, 209 }, + /* tcId: 210. edge case for computation of x with projective coordinates in left to right addition chain */ + {13553, 65, 128, 32, 6688, 32, 1, 210 }, + /* tcId: 211. edge case for computation of x with projective coordinates in left to right addition chain */ + {13618, 65, 128, 32, 6720, 32, 1, 211 }, + /* tcId: 212. edge case for computation of x with projective coordinates in left to right addition chain */ + {13683, 65, 128, 32, 6752, 32, 1, 212 }, + /* tcId: 213. edge case for computation of x with projective coordinates in left to right addition chain */ + {13748, 65, 128, 32, 6784, 32, 1, 213 }, + /* tcId: 214. edge case for computation of x with projective coordinates in left to right addition chain */ + {13813, 65, 128, 32, 6816, 32, 1, 214 }, + /* tcId: 215. edge case for computation of x with projective coordinates in left to right addition chain */ + {13878, 65, 128, 32, 6848, 32, 1, 215 }, + /* tcId: 216. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {13943, 65, 128, 32, 6880, 32, 1, 216 }, + /* tcId: 217. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14008, 65, 128, 32, 6912, 32, 1, 217 }, + /* tcId: 218. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14073, 65, 128, 32, 6944, 32, 1, 218 }, + /* tcId: 219. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14138, 65, 128, 32, 6976, 32, 1, 219 }, + /* tcId: 220. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14203, 65, 128, 32, 7008, 32, 1, 220 }, + /* tcId: 221. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14268, 65, 128, 32, 7040, 32, 1, 221 }, + /* tcId: 222. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14333, 65, 128, 32, 7072, 32, 1, 222 }, + /* tcId: 223. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14398, 65, 128, 32, 7104, 32, 1, 223 }, + /* tcId: 224. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14463, 65, 128, 32, 7136, 32, 1, 224 }, + /* tcId: 225. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14528, 65, 128, 32, 7168, 32, 1, 225 }, + /* tcId: 226. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14593, 65, 128, 32, 7200, 32, 1, 226 }, + /* tcId: 227. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14658, 65, 128, 32, 7232, 32, 1, 227 }, + /* tcId: 228. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14723, 65, 128, 32, 7264, 32, 1, 228 }, + /* tcId: 229. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14788, 65, 128, 32, 7296, 32, 1, 229 }, + /* tcId: 230. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14853, 65, 128, 32, 7328, 32, 1, 230 }, + /* tcId: 231. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14918, 65, 128, 32, 7360, 32, 1, 231 }, + /* tcId: 232. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {14983, 65, 128, 32, 7392, 32, 1, 232 }, + /* tcId: 233. edge case for computation of x with projective coordinates in precomputation or right to left addition chain */ + {15048, 65, 128, 32, 7424, 32, 1, 233 }, + /* tcId: 234. edge case for computation of x with projective coordinates in right to left addition chain */ + {15113, 65, 128, 32, 7456, 32, 1, 234 }, + /* tcId: 235. edge case for computation of x with projective coordinates in right to left addition chain */ + {15178, 65, 128, 32, 7488, 32, 1, 235 }, + /* tcId: 236. edge case for computation of x with projective coordinates in right to left addition chain */ + {15243, 65, 128, 32, 7520, 32, 1, 236 }, + /* tcId: 237. edge case for computation of x with projective coordinates in right to left addition chain */ + {15308, 65, 128, 32, 7552, 32, 1, 237 }, + /* tcId: 238. edge case for computation of x with projective coordinates in right to left addition chain */ + {15373, 65, 128, 32, 7584, 32, 1, 238 }, + /* tcId: 239. edge case for computation of x with projective coordinates in right to left addition chain */ + {15438, 65, 128, 32, 7616, 32, 1, 239 }, + /* tcId: 240. edge case for computation of x with projective coordinates in right to left addition chain */ + {15503, 65, 128, 32, 7648, 32, 1, 240 }, + /* tcId: 241. edge case for computation of x with projective coordinates in right to left addition chain */ + {15568, 65, 128, 32, 7680, 32, 1, 241 }, + /* tcId: 242. edge case for computation of x with projective coordinates in right to left addition chain */ + {15633, 65, 128, 32, 7712, 32, 1, 242 }, + /* tcId: 243. edge case for computation of x with projective coordinates in right to left addition chain */ + {15698, 65, 128, 32, 7744, 32, 1, 243 }, + /* tcId: 244. edge case for computation of x with projective coordinates in right to left addition chain */ + {15763, 65, 128, 32, 7776, 32, 1, 244 }, + /* tcId: 245. edge case for computation of x with projective coordinates in right to left addition chain */ + {15828, 65, 128, 32, 7808, 32, 1, 245 }, + /* tcId: 246. edge case for computation of x with projective coordinates in right to left addition chain */ + {15893, 65, 128, 32, 7840, 32, 1, 246 }, + /* tcId: 247. edge case for computation of x with projective coordinates in right to left addition chain */ + {15958, 65, 128, 32, 7872, 32, 1, 247 }, + /* tcId: 248. edge case for computation of x with projective coordinates in right to left addition chain */ + {16023, 65, 128, 32, 7904, 32, 1, 248 }, + /* tcId: 249. edge case for computation of y with projective coordinates */ + {16088, 65, 128, 32, 7936, 32, 1, 249 }, + /* tcId: 250. edge case for computation of y with projective coordinates */ + {16153, 65, 128, 32, 7968, 32, 1, 250 }, + /* tcId: 251. edge case for computation of y with projective coordinates */ + {16218, 65, 128, 32, 8000, 32, 1, 251 }, + /* tcId: 252. edge case for computation of y with projective coordinates in left to right addition chain */ + {16283, 65, 128, 32, 8032, 32, 1, 252 }, + /* tcId: 253. edge case for computation of y with projective coordinates in left to right addition chain */ + {16348, 65, 128, 32, 8064, 32, 1, 253 }, + /* tcId: 254. edge case for computation of y with projective coordinates in left to right addition chain */ + {16413, 65, 128, 32, 8096, 32, 1, 254 }, + /* tcId: 255. edge case for computation of y with projective coordinates in left to right addition chain */ + {16478, 65, 128, 32, 8128, 32, 1, 255 }, + /* tcId: 256. edge case for computation of y with projective coordinates in left to right addition chain */ + {16543, 65, 128, 32, 8160, 32, 1, 256 }, + /* tcId: 257. edge case for computation of y with projective coordinates in left to right addition chain */ + {16608, 65, 128, 32, 8192, 32, 1, 257 }, + /* tcId: 258. edge case for computation of y with projective coordinates in left to right addition chain */ + {16673, 65, 128, 32, 8224, 32, 1, 258 }, + /* tcId: 259. edge case for computation of y with projective coordinates in left to right addition chain */ + {16738, 65, 128, 32, 8256, 32, 1, 259 }, + /* tcId: 260. edge case for computation of y with projective coordinates in left to right addition chain */ + {16803, 65, 128, 32, 8288, 32, 1, 260 }, + /* tcId: 261. edge case for computation of y with projective coordinates in left to right addition chain */ + {16868, 65, 128, 32, 8320, 32, 1, 261 }, + /* tcId: 262. edge case for computation of y with projective coordinates in left to right addition chain */ + {16933, 65, 128, 32, 8352, 32, 1, 262 }, + /* tcId: 263. edge case for computation of y with projective coordinates in left to right addition chain */ + {16998, 65, 128, 32, 8384, 32, 1, 263 }, + /* tcId: 264. edge case for computation of y with projective coordinates in left to right addition chain */ + {17063, 65, 128, 32, 8416, 32, 1, 264 }, + /* tcId: 265. edge case for computation of y with projective coordinates in left to right addition chain */ + {17128, 65, 128, 32, 8448, 32, 1, 265 }, + /* tcId: 266. edge case for computation of y with projective coordinates in left to right addition chain */ + {17193, 65, 128, 32, 8480, 32, 1, 266 }, + /* tcId: 267. edge case for computation of y with projective coordinates in left to right addition chain */ + {17258, 65, 128, 32, 8512, 32, 1, 267 }, + /* tcId: 268. edge case for computation of y with projective coordinates in precomputation or right to left addition chain */ + {17323, 65, 128, 32, 8544, 32, 1, 268 }, + /* tcId: 269. edge case for computation of y with projective coordinates in precomputation or right to left addition chain */ + {17388, 65, 128, 32, 8576, 32, 1, 269 }, + /* tcId: 270. edge case for computation of y with projective coordinates in precomputation or right to left addition chain */ + {17453, 65, 128, 32, 8608, 32, 1, 270 }, + /* tcId: 271. edge case for computation of y with projective coordinates in precomputation or right to left addition chain */ + {17518, 65, 128, 32, 8640, 32, 1, 271 }, + /* tcId: 272. edge case for computation of y with projective coordinates in precomputation or right to left addition chain */ + {17583, 65, 128, 32, 8672, 32, 1, 272 }, + /* tcId: 273. edge case for computation of y with projective coordinates in precomputation or right to left addition chain */ + {17648, 65, 128, 32, 8704, 32, 1, 273 }, + /* tcId: 274. edge case for computation of y with projective coordinates in right to left addition chain */ + {17713, 65, 128, 32, 8736, 32, 1, 274 }, + /* tcId: 275. edge case for computation of y with projective coordinates in right to left addition chain */ + {17778, 65, 128, 32, 8768, 32, 1, 275 }, + /* tcId: 276. edge case for computation of y with projective coordinates in right to left addition chain */ + {17843, 65, 128, 32, 8800, 32, 1, 276 }, + /* tcId: 277. edge case for computation of y with projective coordinates in right to left addition chain */ + {17908, 65, 128, 32, 8832, 32, 1, 277 }, + /* tcId: 278. edge case for computation of y with projective coordinates in right to left addition chain */ + {17973, 65, 128, 32, 8864, 32, 1, 278 }, + /* tcId: 279. point with coordinate x = 1 */ + {3608, 65, 128, 32, 8896, 32, 1, 279 }, + /* tcId: 280. point with coordinate x = 1 */ + {18038, 65, 128, 32, 8928, 32, 1, 280 }, + /* tcId: 281. point with coordinate x = 1 */ + {18103, 65, 128, 32, 8960, 32, 1, 281 }, + /* tcId: 282. point with coordinate x = 1 in left to right addition chain */ + {18168, 65, 128, 32, 8992, 32, 1, 282 }, + /* tcId: 283. point with coordinate x = 1 in left to right addition chain */ + {18233, 65, 128, 32, 9024, 32, 1, 283 }, + /* tcId: 284. point with coordinate x = 1 in left to right addition chain */ + {18298, 65, 128, 32, 9056, 32, 1, 284 }, + /* tcId: 285. point with coordinate x = 1 in left to right addition chain */ + {18363, 65, 128, 32, 9088, 32, 1, 285 }, + /* tcId: 286. point with coordinate x = 1 in left to right addition chain */ + {18428, 65, 128, 32, 9120, 32, 1, 286 }, + /* tcId: 287. point with coordinate x = 1 in left to right addition chain */ + {18493, 65, 128, 32, 9152, 32, 1, 287 }, + /* tcId: 288. point with coordinate x = 1 in left to right addition chain */ + {18558, 65, 128, 32, 9184, 32, 1, 288 }, + /* tcId: 289. point with coordinate x = 1 in left to right addition chain */ + {18623, 65, 128, 32, 9216, 32, 1, 289 }, + /* tcId: 290. point with coordinate x = 1 in left to right addition chain */ + {18688, 65, 128, 32, 9248, 32, 1, 290 }, + /* tcId: 291. point with coordinate x = 1 in left to right addition chain */ + {18753, 65, 128, 32, 9280, 32, 1, 291 }, + /* tcId: 292. point with coordinate x = 1 in left to right addition chain */ + {18818, 65, 128, 32, 9312, 32, 1, 292 }, + /* tcId: 293. point with coordinate x = 1 in left to right addition chain */ + {18883, 65, 128, 32, 9344, 32, 1, 293 }, + /* tcId: 294. point with coordinate x = 1 in left to right addition chain */ + {18948, 65, 128, 32, 9376, 32, 1, 294 }, + /* tcId: 295. point with coordinate x = 1 in left to right addition chain */ + {19013, 65, 128, 32, 9408, 32, 1, 295 }, + /* tcId: 296. point with coordinate x = 1 in left to right addition chain */ + {19078, 65, 128, 32, 9440, 32, 1, 296 }, + /* tcId: 297. point with coordinate x = 1 in left to right addition chain */ + {19143, 65, 128, 32, 9472, 32, 1, 297 }, + /* tcId: 298. point with coordinate x = 1 in precomputation or right to left addition chain */ + {19208, 65, 128, 32, 9504, 32, 1, 298 }, + /* tcId: 299. point with coordinate x = 1 in precomputation or right to left addition chain */ + {19273, 65, 128, 32, 9536, 32, 1, 299 }, + /* tcId: 300. point with coordinate x = 1 in precomputation or right to left addition chain */ + {19338, 65, 128, 32, 9568, 32, 1, 300 }, + /* tcId: 301. point with coordinate x = 1 in precomputation or right to left addition chain */ + {19403, 65, 128, 32, 9600, 32, 1, 301 }, + /* tcId: 302. point with coordinate x = 1 in precomputation or right to left addition chain */ + {19468, 65, 128, 32, 9632, 32, 1, 302 }, + /* tcId: 303. point with coordinate x = 1 in precomputation or right to left addition chain */ + {19533, 65, 128, 32, 9664, 32, 1, 303 }, + /* tcId: 304. point with coordinate x = 1 in right to left addition chain */ + {19598, 65, 128, 32, 9696, 32, 1, 304 }, + /* tcId: 305. point with coordinate x = 1 in right to left addition chain */ + {19663, 65, 128, 32, 9728, 32, 1, 305 }, + /* tcId: 306. point with coordinate x = 1 in right to left addition chain */ + {19728, 65, 128, 32, 9760, 32, 1, 306 }, + /* tcId: 307. point with coordinate x = 1 in right to left addition chain */ + {19793, 65, 128, 32, 9792, 32, 1, 307 }, + /* tcId: 308. point with coordinate x = 1 in right to left addition chain */ + {19858, 65, 128, 32, 9824, 32, 1, 308 }, + /* tcId: 309. point with coordinate x = 2 */ + {3673, 65, 128, 32, 9856, 32, 1, 309 }, + /* tcId: 310. point with coordinate x = 2 */ + {19923, 65, 128, 32, 9888, 32, 1, 310 }, + /* tcId: 311. point with coordinate x = 2 */ + {19988, 65, 128, 32, 9920, 32, 1, 311 }, + /* tcId: 312. point with coordinate x = 2 in left to right addition chain */ + {20053, 65, 128, 32, 9952, 32, 1, 312 }, + /* tcId: 313. point with coordinate x = 2 in left to right addition chain */ + {20118, 65, 128, 32, 9984, 32, 1, 313 }, + /* tcId: 314. point with coordinate x = 2 in left to right addition chain */ + {20183, 65, 128, 32, 10016, 32, 1, 314 }, + /* tcId: 315. point with coordinate x = 2 in left to right addition chain */ + {20248, 65, 128, 32, 10048, 32, 1, 315 }, + /* tcId: 316. point with coordinate x = 2 in left to right addition chain */ + {20313, 65, 128, 32, 10080, 32, 1, 316 }, + /* tcId: 317. point with coordinate x = 2 in left to right addition chain */ + {20378, 65, 128, 32, 10112, 32, 1, 317 }, + /* tcId: 318. point with coordinate x = 2 in left to right addition chain */ + {20443, 65, 128, 32, 10144, 32, 1, 318 }, + /* tcId: 319. point with coordinate x = 2 in left to right addition chain */ + {20508, 65, 128, 32, 10176, 32, 1, 319 }, + /* tcId: 320. point with coordinate x = 2 in left to right addition chain */ + {20573, 65, 128, 32, 10208, 32, 1, 320 }, + /* tcId: 321. point with coordinate x = 2 in left to right addition chain */ + {20638, 65, 128, 32, 10240, 32, 1, 321 }, + /* tcId: 322. point with coordinate x = 2 in left to right addition chain */ + {20703, 65, 128, 32, 10272, 32, 1, 322 }, + /* tcId: 323. point with coordinate x = 2 in left to right addition chain */ + {20768, 65, 128, 32, 10304, 32, 1, 323 }, + /* tcId: 324. point with coordinate x = 2 in left to right addition chain */ + {20833, 65, 128, 32, 10336, 32, 1, 324 }, + /* tcId: 325. point with coordinate x = 2 in left to right addition chain */ + {20898, 65, 128, 32, 10368, 32, 1, 325 }, + /* tcId: 326. point with coordinate x = 2 in left to right addition chain */ + {20963, 65, 128, 32, 10400, 32, 1, 326 }, + /* tcId: 327. point with coordinate x = 2 in left to right addition chain */ + {21028, 65, 128, 32, 10432, 32, 1, 327 }, + /* tcId: 328. point with coordinate x = 2 in precomputation or right to left addition chain */ + {21093, 65, 128, 32, 10464, 32, 1, 328 }, + /* tcId: 329. point with coordinate x = 2 in precomputation or right to left addition chain */ + {21158, 65, 128, 32, 10496, 32, 1, 329 }, + /* tcId: 330. point with coordinate x = 2 in precomputation or right to left addition chain */ + {21223, 65, 128, 32, 10528, 32, 1, 330 }, + /* tcId: 331. point with coordinate x = 2 in precomputation or right to left addition chain */ + {21288, 65, 128, 32, 10560, 32, 1, 331 }, + /* tcId: 332. point with coordinate x = 2 in precomputation or right to left addition chain */ + {21353, 65, 128, 32, 10592, 32, 1, 332 }, + /* tcId: 333. point with coordinate x = 2 in precomputation or right to left addition chain */ + {21418, 65, 128, 32, 10624, 32, 1, 333 }, + /* tcId: 334. point with coordinate x = 2 in right to left addition chain */ + {21483, 65, 128, 32, 10656, 32, 1, 334 }, + /* tcId: 335. point with coordinate x = 2 in right to left addition chain */ + {21548, 65, 128, 32, 10688, 32, 1, 335 }, + /* tcId: 336. point with coordinate x = 2 in right to left addition chain */ + {21613, 65, 128, 32, 10720, 32, 1, 336 }, + /* tcId: 337. point with coordinate x = 2 in right to left addition chain */ + {21678, 65, 128, 32, 10752, 32, 1, 337 }, + /* tcId: 338. point with coordinate x = 2 in right to left addition chain */ + {21743, 65, 128, 32, 10784, 32, 1, 338 }, + /* tcId: 339. point with coordinate x = 3 */ + {3738, 65, 128, 32, 10816, 32, 1, 339 }, + /* tcId: 340. point with coordinate x = 3 */ + {21808, 65, 128, 32, 10848, 32, 1, 340 }, + /* tcId: 341. point with coordinate x = 3 */ + {21873, 65, 128, 32, 10880, 32, 1, 341 }, + /* tcId: 342. point with coordinate x = 3 in left to right addition chain */ + {21938, 65, 128, 32, 10912, 32, 1, 342 }, + /* tcId: 343. point with coordinate x = 3 in left to right addition chain */ + {22003, 65, 128, 32, 10944, 32, 1, 343 }, + /* tcId: 344. point with coordinate x = 3 in left to right addition chain */ + {22068, 65, 128, 32, 10976, 32, 1, 344 }, + /* tcId: 345. point with coordinate x = 3 in left to right addition chain */ + {22133, 65, 128, 32, 11008, 32, 1, 345 }, + /* tcId: 346. point with coordinate x = 3 in left to right addition chain */ + {22198, 65, 128, 32, 11040, 32, 1, 346 }, + /* tcId: 347. point with coordinate x = 3 in left to right addition chain */ + {22263, 65, 128, 32, 11072, 32, 1, 347 }, + /* tcId: 348. point with coordinate x = 3 in left to right addition chain */ + {22328, 65, 128, 32, 11104, 32, 1, 348 }, + /* tcId: 349. point with coordinate x = 3 in left to right addition chain */ + {22393, 65, 128, 32, 11136, 32, 1, 349 }, + /* tcId: 350. point with coordinate x = 3 in left to right addition chain */ + {22458, 65, 128, 32, 11168, 32, 1, 350 }, + /* tcId: 351. point with coordinate x = 3 in left to right addition chain */ + {22523, 65, 128, 32, 11200, 32, 1, 351 }, + /* tcId: 352. point with coordinate x = 3 in left to right addition chain */ + {22588, 65, 128, 32, 11232, 32, 1, 352 }, + /* tcId: 353. point with coordinate x = 3 in left to right addition chain */ + {22653, 65, 128, 32, 11264, 32, 1, 353 }, + /* tcId: 354. point with coordinate x = 3 in left to right addition chain */ + {22718, 65, 128, 32, 11296, 32, 1, 354 }, + /* tcId: 355. point with coordinate x = 3 in left to right addition chain */ + {22783, 65, 128, 32, 11328, 32, 1, 355 }, + /* tcId: 356. point with coordinate x = 3 in left to right addition chain */ + {22848, 65, 128, 32, 11360, 32, 1, 356 }, + /* tcId: 357. point with coordinate x = 3 in left to right addition chain */ + {22913, 65, 128, 32, 11392, 32, 1, 357 }, + /* tcId: 358. point with coordinate x = 3 in precomputation or right to left addition chain */ + {22978, 65, 128, 32, 11424, 32, 1, 358 }, + /* tcId: 359. point with coordinate x = 3 in precomputation or right to left addition chain */ + {23043, 65, 128, 32, 11456, 32, 1, 359 }, + /* tcId: 360. point with coordinate x = 3 in precomputation or right to left addition chain */ + {23108, 65, 128, 32, 11488, 32, 1, 360 }, + /* tcId: 361. point with coordinate x = 3 in precomputation or right to left addition chain */ + {23173, 65, 128, 32, 11520, 32, 1, 361 }, + /* tcId: 362. point with coordinate x = 3 in precomputation or right to left addition chain */ + {23238, 65, 128, 32, 11552, 32, 1, 362 }, + /* tcId: 363. point with coordinate x = 3 in precomputation or right to left addition chain */ + {23303, 65, 128, 32, 11584, 32, 1, 363 }, + /* tcId: 364. point with coordinate x = 3 in right to left addition chain */ + {23368, 65, 128, 32, 11616, 32, 1, 364 }, + /* tcId: 365. point with coordinate x = 3 in right to left addition chain */ + {23433, 65, 128, 32, 11648, 32, 1, 365 }, + /* tcId: 366. point with coordinate x = 3 in right to left addition chain */ + {23498, 65, 128, 32, 11680, 32, 1, 366 }, + /* tcId: 367. point with coordinate x = 3 in right to left addition chain */ + {23563, 65, 128, 32, 11712, 32, 1, 367 }, + /* tcId: 368. point with coordinate x = 3 in right to left addition chain */ + {23628, 65, 128, 32, 11744, 32, 1, 368 }, + /* tcId: 369. point with coordinate y = 1 */ + {23693, 65, 128, 32, 11776, 32, 1, 369 }, + /* tcId: 370. point with coordinate y = 1 */ + {23758, 65, 128, 32, 11808, 32, 1, 370 }, + /* tcId: 371. point with coordinate y = 1 */ + {23823, 65, 128, 32, 11840, 32, 1, 371 }, + /* tcId: 372. point with coordinate y = 1 */ + {23888, 65, 128, 32, 11872, 32, 1, 372 }, + /* tcId: 373. point with coordinate y = 1 */ + {23953, 65, 128, 32, 11904, 32, 1, 373 }, + /* tcId: 374. point with coordinate y = 1 */ + {24018, 65, 128, 32, 11936, 32, 1, 374 }, + /* tcId: 375. point with coordinate y = 1 */ + {24083, 65, 128, 32, 11968, 32, 1, 375 }, + /* tcId: 376. point with coordinate y = 1 */ + {24148, 65, 128, 32, 12000, 32, 1, 376 }, + /* tcId: 377. point with coordinate y = 1 */ + {24213, 65, 128, 32, 12032, 32, 1, 377 }, + /* tcId: 378. point with coordinate y = 1 in left to right addition chain */ + {24278, 65, 128, 32, 12064, 32, 1, 378 }, + /* tcId: 379. point with coordinate y = 1 in left to right addition chain */ + {24343, 65, 128, 32, 12096, 32, 1, 379 }, + /* tcId: 380. point with coordinate y = 1 in left to right addition chain */ + {24408, 65, 128, 32, 12128, 32, 1, 380 }, + /* tcId: 381. point with coordinate y = 1 in left to right addition chain */ + {24473, 65, 128, 32, 12160, 32, 1, 381 }, + /* tcId: 382. point with coordinate y = 1 in left to right addition chain */ + {24538, 65, 128, 32, 12192, 32, 1, 382 }, + /* tcId: 383. point with coordinate y = 1 in left to right addition chain */ + {24603, 65, 128, 32, 12224, 32, 1, 383 }, + /* tcId: 384. point with coordinate y = 1 in left to right addition chain */ + {24668, 65, 128, 32, 12256, 32, 1, 384 }, + /* tcId: 385. point with coordinate y = 1 in left to right addition chain */ + {24733, 65, 128, 32, 12288, 32, 1, 385 }, + /* tcId: 386. point with coordinate y = 1 in left to right addition chain */ + {24798, 65, 128, 32, 12320, 32, 1, 386 }, + /* tcId: 387. point with coordinate y = 1 in left to right addition chain */ + {24863, 65, 128, 32, 12352, 32, 1, 387 }, + /* tcId: 388. point with coordinate y = 1 in left to right addition chain */ + {24928, 65, 128, 32, 12384, 32, 1, 388 }, + /* tcId: 389. point with coordinate y = 1 in left to right addition chain */ + {24993, 65, 128, 32, 12416, 32, 1, 389 }, + /* tcId: 390. point with coordinate y = 1 in left to right addition chain */ + {25058, 65, 128, 32, 12448, 32, 1, 390 }, + /* tcId: 391. point with coordinate y = 1 in left to right addition chain */ + {25123, 65, 128, 32, 12480, 32, 1, 391 }, + /* tcId: 392. point with coordinate y = 1 in left to right addition chain */ + {25188, 65, 128, 32, 12512, 32, 1, 392 }, + /* tcId: 393. point with coordinate y = 1 in left to right addition chain */ + {25253, 65, 128, 32, 12544, 32, 1, 393 }, + /* tcId: 394. point with coordinate y = 1 in left to right addition chain */ + {25318, 65, 128, 32, 12576, 32, 1, 394 }, + /* tcId: 395. point with coordinate y = 1 in left to right addition chain */ + {25383, 65, 128, 32, 12608, 32, 1, 395 }, + /* tcId: 396. point with coordinate y = 1 in left to right addition chain */ + {25448, 65, 128, 32, 12640, 32, 1, 396 }, + /* tcId: 397. point with coordinate y = 1 in left to right addition chain */ + {25513, 65, 128, 32, 12672, 32, 1, 397 }, + /* tcId: 398. point with coordinate y = 1 in left to right addition chain */ + {25578, 65, 128, 32, 12704, 32, 1, 398 }, + /* tcId: 399. point with coordinate y = 1 in left to right addition chain */ + {25643, 65, 128, 32, 12736, 32, 1, 399 }, + /* tcId: 400. point with coordinate y = 1 in left to right addition chain */ + {25708, 65, 128, 32, 12768, 32, 1, 400 }, + /* tcId: 401. point with coordinate y = 1 in left to right addition chain */ + {25773, 65, 128, 32, 12800, 32, 1, 401 }, + /* tcId: 402. point with coordinate y = 1 in left to right addition chain */ + {25838, 65, 128, 32, 12832, 32, 1, 402 }, + /* tcId: 403. point with coordinate y = 1 in left to right addition chain */ + {25903, 65, 128, 32, 12864, 32, 1, 403 }, + /* tcId: 404. point with coordinate y = 1 in left to right addition chain */ + {25968, 65, 128, 32, 12896, 32, 1, 404 }, + /* tcId: 405. point with coordinate y = 1 in left to right addition chain */ + {26033, 65, 128, 32, 12928, 32, 1, 405 }, + /* tcId: 406. point with coordinate y = 1 in left to right addition chain */ + {26098, 65, 128, 32, 12960, 32, 1, 406 }, + /* tcId: 407. point with coordinate y = 1 in left to right addition chain */ + {26163, 65, 128, 32, 12992, 32, 1, 407 }, + /* tcId: 408. point with coordinate y = 1 in left to right addition chain */ + {26228, 65, 128, 32, 13024, 32, 1, 408 }, + /* tcId: 409. point with coordinate y = 1 in left to right addition chain */ + {26293, 65, 128, 32, 13056, 32, 1, 409 }, + /* tcId: 410. point with coordinate y = 1 in left to right addition chain */ + {26358, 65, 128, 32, 13088, 32, 1, 410 }, + /* tcId: 411. point with coordinate y = 1 in left to right addition chain */ + {26423, 65, 128, 32, 13120, 32, 1, 411 }, + /* tcId: 412. point with coordinate y = 1 in left to right addition chain */ + {26488, 65, 128, 32, 13152, 32, 1, 412 }, + /* tcId: 413. point with coordinate y = 1 in left to right addition chain */ + {26553, 65, 128, 32, 13184, 32, 1, 413 }, + /* tcId: 414. point with coordinate y = 1 in left to right addition chain */ + {26618, 65, 128, 32, 13216, 32, 1, 414 }, + /* tcId: 415. point with coordinate y = 1 in left to right addition chain */ + {26683, 65, 128, 32, 13248, 32, 1, 415 }, + /* tcId: 416. point with coordinate y = 1 in left to right addition chain */ + {26748, 65, 128, 32, 13280, 32, 1, 416 }, + /* tcId: 417. point with coordinate y = 1 in left to right addition chain */ + {26813, 65, 128, 32, 13312, 32, 1, 417 }, + /* tcId: 418. point with coordinate y = 1 in left to right addition chain */ + {26878, 65, 128, 32, 13344, 32, 1, 418 }, + /* tcId: 419. point with coordinate y = 1 in left to right addition chain */ + {26943, 65, 128, 32, 13376, 32, 1, 419 }, + /* tcId: 420. point with coordinate y = 1 in left to right addition chain */ + {27008, 65, 128, 32, 13408, 32, 1, 420 }, + /* tcId: 421. point with coordinate y = 1 in left to right addition chain */ + {27073, 65, 128, 32, 13440, 32, 1, 421 }, + /* tcId: 422. point with coordinate y = 1 in left to right addition chain */ + {27138, 65, 128, 32, 13472, 32, 1, 422 }, + /* tcId: 423. point with coordinate y = 1 in left to right addition chain */ + {27203, 65, 128, 32, 13504, 32, 1, 423 }, + /* tcId: 424. point with coordinate y = 1 in left to right addition chain */ + {27268, 65, 128, 32, 13536, 32, 1, 424 }, + /* tcId: 425. point with coordinate y = 1 in left to right addition chain */ + {27333, 65, 128, 32, 13568, 32, 1, 425 }, + /* tcId: 426. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27398, 65, 128, 32, 13600, 32, 1, 426 }, + /* tcId: 427. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27463, 65, 128, 32, 13632, 32, 1, 427 }, + /* tcId: 428. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27528, 65, 128, 32, 13664, 32, 1, 428 }, + /* tcId: 429. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27593, 65, 128, 32, 13696, 32, 1, 429 }, + /* tcId: 430. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27658, 65, 128, 32, 13728, 32, 1, 430 }, + /* tcId: 431. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27723, 65, 128, 32, 13760, 32, 1, 431 }, + /* tcId: 432. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27788, 65, 128, 32, 13792, 32, 1, 432 }, + /* tcId: 433. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27853, 65, 128, 32, 13824, 32, 1, 433 }, + /* tcId: 434. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27918, 65, 128, 32, 13856, 32, 1, 434 }, + /* tcId: 435. point with coordinate y = 1 in precomputation or right to left addition chain */ + {27983, 65, 128, 32, 13888, 32, 1, 435 }, + /* tcId: 436. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28048, 65, 128, 32, 13920, 32, 1, 436 }, + /* tcId: 437. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28113, 65, 128, 32, 13952, 32, 1, 437 }, + /* tcId: 438. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28178, 65, 128, 32, 13984, 32, 1, 438 }, + /* tcId: 439. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28243, 65, 128, 32, 14016, 32, 1, 439 }, + /* tcId: 440. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28308, 65, 128, 32, 14048, 32, 1, 440 }, + /* tcId: 441. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28373, 65, 128, 32, 14080, 32, 1, 441 }, + /* tcId: 442. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28438, 65, 128, 32, 14112, 32, 1, 442 }, + /* tcId: 443. point with coordinate y = 1 in precomputation or right to left addition chain */ + {28503, 65, 128, 32, 14144, 32, 1, 443 }, + /* tcId: 444. point with coordinate y = 1 in right to left addition chain */ + {28568, 65, 128, 32, 14176, 32, 1, 444 }, + /* tcId: 445. point with coordinate y = 1 in right to left addition chain */ + {28633, 65, 128, 32, 14208, 32, 1, 445 }, + /* tcId: 446. point with coordinate y = 1 in right to left addition chain */ + {28698, 65, 128, 32, 14240, 32, 1, 446 }, + /* tcId: 447. point with coordinate y = 1 in right to left addition chain */ + {28763, 65, 128, 32, 14272, 32, 1, 447 }, + /* tcId: 448. point with coordinate y = 1 in right to left addition chain */ + {28828, 65, 128, 32, 14304, 32, 1, 448 }, + /* tcId: 449. point with coordinate y = 1 in right to left addition chain */ + {28893, 65, 128, 32, 14336, 32, 1, 449 }, + /* tcId: 450. point with coordinate y = 1 in right to left addition chain */ + {28958, 65, 128, 32, 14368, 32, 1, 450 }, + /* tcId: 451. point with coordinate y = 1 in right to left addition chain */ + {29023, 65, 128, 32, 14400, 32, 1, 451 }, + /* tcId: 452. point with coordinate y = 1 in right to left addition chain */ + {29088, 65, 128, 32, 14432, 32, 1, 452 }, + /* tcId: 453. point with coordinate y = 1 in right to left addition chain */ + {29153, 65, 128, 32, 14464, 32, 1, 453 }, + /* tcId: 454. point with coordinate y = 1 in right to left addition chain */ + {29218, 65, 128, 32, 14496, 32, 1, 454 }, + /* tcId: 455. point with coordinate y = 1 in right to left addition chain */ + {29283, 65, 128, 32, 14528, 32, 1, 455 }, + /* tcId: 456. point with coordinate y = 1 in right to left addition chain */ + {29348, 65, 128, 32, 14560, 32, 1, 456 }, + /* tcId: 457. point with coordinate y = 1 in right to left addition chain */ + {29413, 65, 128, 32, 14592, 32, 1, 457 }, + /* tcId: 458. point with coordinate y = 1 in right to left addition chain */ + {29478, 65, 128, 32, 14624, 32, 1, 458 }, + /* tcId: 459. edge case private key */ + {29543, 65, 160, 32, 14656, 32, 1, 459 }, + /* tcId: 460. edge case private key */ + {29543, 65, 192, 32, 14688, 32, 1, 460 }, + /* tcId: 461. edge case private key */ + {29543, 65, 224, 32, 14720, 32, 1, 461 }, + /* tcId: 462. edge case private key */ + {29543, 65, 256, 32, 14752, 32, 1, 462 }, + /* tcId: 463. edge case private key */ + {29543, 65, 288, 32, 14784, 32, 1, 463 }, + /* tcId: 464. edge case private key */ + {29543, 65, 320, 32, 14816, 32, 1, 464 }, + /* tcId: 465. edge case private key */ + {29543, 65, 352, 32, 14848, 32, 1, 465 }, + /* tcId: 466. edge case private key */ + {29543, 65, 384, 32, 14880, 32, 1, 466 }, + /* tcId: 467. edge case private key */ + {29543, 65, 416, 32, 14912, 32, 1, 467 }, + /* tcId: 468. edge case private key */ + {29543, 65, 448, 32, 14944, 32, 1, 468 }, + /* tcId: 469. edge case private key */ + {29543, 65, 480, 32, 14976, 32, 1, 469 }, + /* tcId: 470. edge case private key */ + {29543, 65, 512, 32, 15008, 32, 1, 470 }, + /* tcId: 471. edge case private key */ + {29543, 65, 544, 32, 15040, 32, 1, 471 }, + /* tcId: 472. edge case private key */ + {29543, 65, 576, 32, 15072, 32, 1, 472 }, + /* tcId: 473. edge case private key */ + {29543, 65, 608, 32, 15104, 32, 1, 473 }, + /* tcId: 474. edge case private key */ + {29543, 65, 640, 32, 15136, 32, 1, 474 }, + /* tcId: 475. point is not on curve */ + {29608, 65, 672, 32, 15168, 0, 0, 475 }, + /* tcId: 476. point is not on curve */ + {29673, 65, 672, 32, 15168, 0, 0, 476 }, + /* tcId: 477. point is not on curve */ + {29738, 65, 672, 32, 15168, 0, 0, 477 }, + /* tcId: 478. point is not on curve */ + {29803, 65, 672, 32, 15168, 0, 0, 478 }, + /* tcId: 479. point is not on curve */ + {29868, 65, 672, 32, 15168, 0, 0, 479 }, + /* tcId: 480. point is not on curve */ + {29933, 65, 672, 32, 15168, 0, 0, 480 }, + /* tcId: 481. point is not on curve */ + {29998, 65, 672, 32, 15168, 0, 0, 481 }, + /* tcId: 482. point is not on curve */ + {30063, 65, 672, 32, 15168, 0, 0, 482 }, + /* tcId: 483. point is not on curve */ + {30128, 65, 672, 32, 15168, 0, 0, 483 }, + /* tcId: 484. point is not on curve */ + {30193, 65, 672, 32, 15168, 0, 0, 484 }, + /* tcId: 485. point is not on curve */ + {30258, 65, 672, 32, 15168, 0, 0, 485 }, + /* tcId: 486. point is not on curve */ + {30323, 65, 672, 32, 15168, 0, 0, 486 }, + /* tcId: 487. point is not on curve */ + {30388, 65, 672, 32, 15168, 0, 0, 487 }, + /* tcId: 488. point is not on curve */ + {30453, 65, 672, 32, 15168, 0, 0, 488 }, + /* tcId: 489. point is not on curve */ + {30518, 65, 672, 32, 15168, 0, 0, 489 }, + /* tcId: 490. point is not on curve */ + {30583, 65, 672, 32, 15168, 0, 0, 490 }, + /* tcId: 491. */ + {30648, 0, 672, 32, 15168, 0, 0, 491 }, + /* tcId: 494. public point not on curve */ + {30648, 65, 704, 32, 15168, 0, 0, 494 }, + /* tcId: 495. public point = (0,0) */ + {29608, 65, 704, 32, 15168, 0, 0, 495 }, + /* tcId: 498. order = 1 */ + {30713, 65, 704, 32, 15168, 32, 1, 498 }, + /* tcId: 499. order = 26959946667150639794667015087019630673536463705607434823784316690060 */ + {30713, 65, 704, 32, 15200, 32, 1, 499 }, + /* tcId: 500. generator = (0,0) */ + {30713, 65, 704, 32, 15232, 32, 1, 500 }, + /* tcId: 501. generator not on curve */ + {30713, 65, 704, 32, 15264, 32, 1, 501 }, + /* tcId: 506. cofactor = None */ + {30713, 65, 704, 32, 15296, 32, 1, 506 }, + /* tcId: 508. using secp224r1 */ + {30778, 57, 704, 32, 15328, 0, 0, 508 }, + /* tcId: 509. using secp256r1 */ + {30835, 65, 704, 32, 15328, 0, 0, 509 }, + /* tcId: 510. a = 0 */ + {30713, 65, 704, 32, 15328, 32, 1, 510 }, + /* tcId: 511. public key of order 3 */ + {30900, 65, 704, 32, 15360, 0, 0, 511 }, + /* tcId: 528. invalid public key */ + {30965, 33, 736, 32, 15360, 0, 0, 528 }, + +}; diff --git a/src/wycheproof/ecdh_secp256k1_test.json b/src/wycheproof/ecdh_secp256k1_test.json new file mode 100644 index 0000000000..16db618912 --- /dev/null +++ b/src/wycheproof/ecdh_secp256k1_test.json @@ -0,0 +1,8441 @@ +{ + "algorithm" : "ECDH", + "schema" : "ecdh_test_schema.json", + "generatorVersion" : "0.9rc5", + "numberOfTests" : 752, + "header" : [ + "Test vectors of type EcdhTest are intended for", + "testing an ECDH implementations using X509 encoded", + "public keys and integers for private keys.", + "Test vectors of this format are useful for testing", + "Java providers." + ], + "notes" : { + "AdditionChain" : { + "bugType" : "KNOWN_BUG", + "description" : "The private key has an unusual bit pattern, such as high or low Hamming weight. The goal is to test edge cases for addition chain implementations." + }, + "CompressedPoint" : { + "bugType" : "UNKNOWN", + "description" : "The point in the public key is compressed. Not every library supports points in compressed format." + }, + "CompressedPublic" : { + "bugType" : "FUNCTIONALITY", + "description" : "The public key in the test vector is compressed. Some implementations do not support compressed points." + }, + "EdgeCaseDoubling" : { + "bugType" : "EDGE_CASE", + "description" : "The test vector contains an EC point that hits an edge case (e.g. a coordinate 0) when doubled. The goal of the test vector is to check for arithmetic errors in these test cases.", + "effect" : "The effect of such arithmetic errors is unclear and requires further analysis." + }, + "EdgeCaseEphemeralKey" : { + "bugType" : "EDGE_CASE", + "description" : "The test vector contains an ephemeral public key that is an edge case." + }, + "EdgeCaseSharedSecret" : { + "bugType" : "EDGE_CASE", + "description" : "The test vector contains a public key and private key such that the shared ECDH secret is a special case. The goal of this test vector is to detect arithmetic errors.", + "effect" : "The seriousness of an arithmetic error is unclear. It requires further analysis to determine if the bug is exploitable." + }, + "InvalidAsn" : { + "bugType" : "UNKNOWN", + "description" : "The public key in this test uses an invalid ASN encoding. Some cases where the ASN parser is not strictly checking the ASN format are benign as long as the ECDH computation still returns the correct shared value." + }, + "InvalidCompressedPublic" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The test vector contains a compressed public key that does not exist. I.e., it contains an x-coordinate that does not correspond to any points on the curve. Such keys should be rejected " + }, + "InvalidCurveAttack" : { + "bugType" : "CONFIDENTIALITY", + "description" : "The point of the public key is not on the curve. ", + "effect" : "If an implementation does not check whether a point is on the curve then it is likely that the implementation is susceptible to an invalid curve attack. Many implementations compute the shared ECDH secret over a curve defined by the point on the public key. This curve can be weak and hence leak information about the private key." + }, + "InvalidEncoding" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The test vector contains a public key with an invalid encoding." + }, + "InvalidPublic" : { + "bugType" : "CAN_OF_WORMS", + "description" : "The public key has been modified and is invalid. An implementation should always check whether the public key is valid and on the same curve as the private key. The test vector includes the shared secret computed with the original public key if the public point is on the curve of the private key.", + "effect" : "Generating a shared secret other than the one with the original key likely indicates that the bug is exploitable." + }, + "LargeCofactor" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The cofactor is larger than the limits specified in FIPS-PUB 186-4 table 1, p.36." + }, + "Modified curve parameter" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The parameters a and b of the curve have been modified. The parameters haven been chosen so that public key or generator still are also valid points on the new curve." + }, + "ModifiedCofactor" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The cofactor has been modified. ", + "effect" : "The seriousness of accepting a key with modified cofactor depends on whether the primitive using the key actually uses the cofactor." + }, + "ModifiedGenerator" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The generator of the EC group has been modified.", + "effect" : "The seriousness of the modification depends on whether the cryptographic primitive uses the generator. In the worst case such a modification allows an invalid curve attack." + }, + "ModifiedGroup" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The EC curve of the public key has been modified. EC curve primitives should always check that the keys are on the expected curve." + }, + "ModifiedPrime" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The modulus of the public key has been modified. The public point of the public key has been chosen so that it is both a point on both the curve of the modified public key and the private key." + }, + "ModifiedPublicPoint" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The public point of the key has been modified and is not on the curve.", + "effect" : "Not checking that a public point is on the curve may allow an invalid curve attack." + }, + "NegativeCofactor" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The cofactor of the curve is negative." + }, + "Normal" : { + "bugType" : "BASIC", + "description" : "The test vector contains a pseudorandomly generated, valid test case. Implementations are expected to pass this test." + }, + "UnnamedCurve" : { + "bugType" : "UNKNOWN", + "description" : "The public key does not use a named curve. RFC 3279 allows to encode such curves by explicitly encoding, the parameters of the curve equation, modulus, generator, order and cofactor. However, many crypto libraries only support named curves. Modifying some of the EC parameters and encoding the corresponding public key as an unnamed curve is a potential attack vector." + }, + "UnusedParam" : { + "bugType" : "MALLEABILITY", + "description" : "A parameter that is typically not used for ECDH has been modified. Sometimes libraries ignore small differences between public and private key. For example, a library might ignore an incorrect cofactor in the public key. We consider ignoring such changes as acceptable as long as these differences do not change the outcome of the ECDH computation, i.e. as long as the computation is done on the curve from the private key." + }, + "WeakPublicKey" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The vector contains a weak public key. The curve is not a named curve, the public key point has order 3 and has been chosen to be on the same curve as the private key. This test vector is used to check ECC implementations for missing steps in the verification of the public key." + }, + "WrongCurve" : { + "bugType" : "CONFIDENTIALITY", + "description" : "The public key and private key use distinct curves. Implementations are expected to reject such parameters.", + "effect" : "Computing an ECDH key exchange with public and private keys can in the worst case lead to an invalid curve attack. Hence, it is important that ECDH implementations check the input parameters. The severity of such bugs is typically smaller if an implementation ensures that the point is on the curve and that the ECDH computation is performed on the curve of the private key. Some of the test vectors with modified public key contain shared ECDH secrets, that were computed over the curve of the private key." + }, + "WrongOrder" : { + "bugType" : "MODIFIED_PARAMETER", + "description" : "The order of the public key has been modified.", + "effect" : "If this order is used in a cryptographic primitive instead of the correct order then an invalid curve attack is possible and the private keys may leak. E.g. ECDHC in BC 1.52 suffered from this." + } + }, + "testGroups" : [ + { + "type" : "EcdhTest", + "curve" : "secp256k1", + "encoding" : "asn", + "tests" : [ + { + "tcId" : 1, + "comment" : "normal case", + "flags" : [ + "Normal" + ], + "public" : "3056301006072a8648ce3d020106052b8104000a03420004d8096af8a11e0b80037e1ee68246b5dcbb0aeb1cf1244fd767db80f3fa27da2b396812ea1686e7472e9692eaf3e958e50e9500d3b4c77243db1f2acd67ba9cc4", + "private" : "00f4b7ff7cccc98813a69fae3df222bfe3f4e28f764bf91b4a10d8096ce446b254", + "shared" : "544dfae22af6af939042b1d85b71a1e49e9a5614123c4d6ad0c8af65baf87d65", + "result" : "valid" + }, + { + "tcId" : 2, + "comment" : "compressed public key", + "flags" : [ + "CompressedPublic", + "CompressedPoint" + ], + "public" : "3036301006072a8648ce3d020106052b8104000a03220002d8096af8a11e0b80037e1ee68246b5dcbb0aeb1cf1244fd767db80f3fa27da2b", + "private" : "00f4b7ff7cccc98813a69fae3df222bfe3f4e28f764bf91b4a10d8096ce446b254", + "shared" : "544dfae22af6af939042b1d85b71a1e49e9a5614123c4d6ad0c8af65baf87d65", + "result" : "acceptable" + }, + { + "tcId" : 3, + "comment" : "shared secret has x-coordinate that satisfies x**2 + a = 1", + "flags" : [ + "EdgeCaseSharedSecret" + ], + "public" : "3056301006072a8648ce3d020106052b8104000a03420004965ff42d654e058ee7317cced7caf093fbb180d8d3a74b0dcd9d8cd47a39d5cb9c2aa4daac01a4be37c20467ede964662f12983e0b5272a47a5f2785685d8087", + "private" : "00a2b6442a37f8a3764aeff4011a4c422b389a1e509669c43f279c8b7e32d80c3a", + "shared" : "0000000000000000000000000000000000000000000000000000000000000001", + "result" : "valid" + }, + { + "tcId" : 4, + "comment" : "shared secret has x-coordinate that satisfies x**2 + a = 4", + "flags" : [ + "EdgeCaseSharedSecret" + ], + "public" : "3056301006072a8648ce3d020106052b8104000a0342000406c4b87ba76c6dcb101f54a050a086aa2cb0722f03137df5a922472f1bdc11b982e3c735c4b6c481d09269559f080ad08632f370a054af12c1fd1eced2ea9211", + "private" : 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"3055301006072a8648ce3d020106052b8104000a03410004e03faca42a8b811759211d49b69dd0e0a686b28ff7b5817789a2f80050791335bf34cf495029075de25603fd56dd3cef36ee8503b9f3b0c1340c8e4012da32", + "private" : "0495800a83e6c1d61886d332e2613aa3f70df22865b0387ca6ca195cfcd2b2b1", + "shared" : "ebdca74dbf2c8ef63af8d86e0e0ee4511399bc08a395c4ea050bab43a29d2646", + "result" : "acceptable" + }, + { + "tcId" : 747, + "comment" : "truncated bit string", + "flags" : [ + "InvalidAsn" + ], + "public" : "3055301006072a8648ce3d020106052b8104000a034104e03faca42a8b811759211d49b69dd0e0a686b28ff7b5817789a2f80050791335bf34cf495029075de25603fd56dd3cef36ee8503b9f3b0c1340c8e4012da3267", + "private" : "0495800a83e6c1d61886d332e2613aa3f70df22865b0387ca6ca195cfcd2b2b1", + "shared" : "ebdca74dbf2c8ef63af8d86e0e0ee4511399bc08a395c4ea050bab43a29d2646", + "result" : "acceptable" + }, + { + "tcId" : 748, + "comment" : "bit string of size 4163 to check for overflows", + "flags" : [ + "InvalidAsn" + ], + "public" : "30821059301006072a8648ce3d020106052b8104000a038210430004e03faca42a8b811759211d49b69dd0e0a686b28ff7b5817789a2f80050791335bf34cf495029075de25603fd56dd3cef36ee8503b9f3b0c1340c8e4012da3267000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000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+ "private" : "0495800a83e6c1d61886d332e2613aa3f70df22865b0387ca6ca195cfcd2b2b1", + "shared" : "ebdca74dbf2c8ef63af8d86e0e0ee4511399bc08a395c4ea050bab43a29d2646", + "result" : "acceptable" + }, + { + "tcId" : 749, + "comment" : "declaring bits as unused in bit string", + "flags" : [ + "InvalidAsn" + ], + "public" : "3056301006072a8648ce3d020106052b8104000a03420104e03faca42a8b811759211d49b69dd0e0a686b28ff7b5817789a2f80050791335bf34cf495029075de25603fd56dd3cef36ee8503b9f3b0c1340c8e4012da3267", + "private" : "0495800a83e6c1d61886d332e2613aa3f70df22865b0387ca6ca195cfcd2b2b1", + "shared" : "ebdca74dbf2c8ef63af8d86e0e0ee4511399bc08a395c4ea050bab43a29d2646", + "result" : "acceptable" + }, + { + "tcId" : 750, + "comment" : "unused bits in bit string", + "flags" : [ + "InvalidAsn" + ], + "public" : "305a301006072a8648ce3d020106052b8104000a03462004e03faca42a8b811759211d49b69dd0e0a686b28ff7b5817789a2f80050791335bf34cf495029075de25603fd56dd3cef36ee8503b9f3b0c1340c8e4012da326701020304", + "private" : "0495800a83e6c1d61886d332e2613aa3f70df22865b0387ca6ca195cfcd2b2b1", + "shared" : "ebdca74dbf2c8ef63af8d86e0e0ee4511399bc08a395c4ea050bab43a29d2646", + "result" : "acceptable" + }, + { + "tcId" : 751, + "comment" : "unused bits in empty bit-string", + "flags" : [ + "InvalidAsn" + ], + "public" : "3015301006072a8648ce3d020106052b8104000a030103", + "private" : "0495800a83e6c1d61886d332e2613aa3f70df22865b0387ca6ca195cfcd2b2b1", + "shared" : "ebdca74dbf2c8ef63af8d86e0e0ee4511399bc08a395c4ea050bab43a29d2646", + "result" : "acceptable" + }, + { + "tcId" : 752, + "comment" : "128 unused bits", + "flags" : [ + "InvalidAsn" + ], + "public" : "3056301006072a8648ce3d020106052b8104000a03428004e03faca42a8b811759211d49b69dd0e0a686b28ff7b5817789a2f80050791335bf34cf495029075de25603fd56dd3cef36ee8503b9f3b0c1340c8e4012da3267", + "private" : "0495800a83e6c1d61886d332e2613aa3f70df22865b0387ca6ca195cfcd2b2b1", + "shared" : "ebdca74dbf2c8ef63af8d86e0e0ee4511399bc08a395c4ea050bab43a29d2646", + "result" : "acceptable" + } + ] + } + ] +} diff --git a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h index 736737fd61..556c235689 100644 --- a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h +++ b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.h @@ -1,4 +1,4 @@ -/* Note: this file was autogenerated using tests_wycheproof_generate.py. Do not edit. */ +/* Note: this file was autogenerated using tests_wycheproof_generate_ecdsa.py. Do not edit. */ #define SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS (463) typedef struct { diff --git a/tools/tests_wycheproof_generate_ecdh.py b/tools/tests_wycheproof_generate_ecdh.py new file mode 100755 index 0000000000..97551d01a1 --- /dev/null +++ b/tools/tests_wycheproof_generate_ecdh.py @@ -0,0 +1,166 @@ +#!/usr/bin/env python3 +# Copyright (c) 2024 Random "Randy" Lattice and Sean Andersen +# Distributed under the MIT software license, see the accompanying +# file COPYING or https://www.opensource.org/licenses/mit-license.php. +''' +Generate a C file with ECDH testvectors from the Wycheproof project. +''' + +import json +import sys + +from binascii import hexlify, unhexlify +from wycheproof_utils import to_c_array + +def should_skip_flags(test_vector_flags): + # skip these vectors because they are for ASN.1 encoding issues and other curves. + # for more details, see https://github.com/bitcoin-core/secp256k1/pull/1492#discussion_r1572491546 + flags_to_skip = {"InvalidAsn", "WrongCurve"} + return any(flag in test_vector_flags for flag in flags_to_skip) + +def should_skip_tcid(test_vector_tcid): + # We skip some test case IDs that have a public key whose custom ASN.1 representation explicitly + # encodes some curve parameters that are invalid. libsecp256k1 never parses this part so we do + # not care testing those. See https://github.com/bitcoin-core/secp256k1/pull/1492#discussion_r1572491546 + tcids_to_skip = [496, 497, 502, 503, 504, 505, 507] + return test_vector_tcid in tcids_to_skip + +# Rudimentary ASN.1 DER public key parser. +# This should not be used for anything other than parsing Wycheproof test vectors. +def parse_der_pk(s): + tag = s[0] + L = int(s[1]) + offset = 0 + if L & 0x80: + if L == 0x81: + L = int(s[2]) + offset = 1 + elif L == 0x82: + L = 256 * int(s[2]) + int(s[3]) + offset = 2 + else: + raise ValueError("invalid L") + value = s[(offset + 2):(L + 2 + offset)] + rest = s[(L + 2 + offset):] + + if len(rest) > 0 or tag == 0x06: # OBJECT IDENTIFIER + return parse_der_pk(rest) + if tag == 0x03: # BIT STRING + return value + if tag == 0x30: # SEQUENCE + return parse_der_pk(value) + raise ValueError("unknown tag") + +def parse_public_key(pk): + der_pub_key = parse_der_pk(unhexlify(pk)) # Convert back to str and strip off the `0x` + return hexlify(der_pub_key).decode()[2:] + +def normalize_private_key(sk): + # Ensure the private key is at most 64 characters long, retaining the last 64 if longer. + # In the wycheproof test vectors, some private keys have leading zeroes + normalized = sk[-64:].zfill(64) + if len(normalized) != 64: + raise ValueError("private key must be exactly 64 characters long.") + return normalized + +def normalize_expected_result(er): + result_mapping = {"invalid": 0, "valid": 1, "acceptable": 1} + return result_mapping[er] + +filename_input = sys.argv[1] + +with open(filename_input) as f: + doc = json.load(f) + +num_vectors = 0 +offset_sk_running, offset_pk_running, offset_shared = 0, 0, 0 +test_vectors_out = "" +private_keys = "" +shared_secrets = "" +public_keys = "" +cache_sks = {} +cache_public_keys = {} + +for group in doc['testGroups']: + assert group["type"] == "EcdhTest" + assert group["curve"] == "secp256k1" + for test_vector in group['tests']: + if should_skip_flags(test_vector['flags']) or should_skip_tcid(test_vector['tcId']): + continue + + public_key = parse_public_key(test_vector['public']) + private_key = normalize_private_key(test_vector['private']) + expected_result = normalize_expected_result(test_vector['result']) + + # // 2 to convert hex to byte length + shared_size = len(test_vector['shared']) // 2 + sk_size = len(private_key) // 2 + pk_size = len(public_key) // 2 + + new_sk = False + sk = to_c_array(private_key) + sk_offset = offset_sk_running + + # check for repeated sk + if sk not in cache_sks: + if num_vectors != 0 and sk_size != 0: + private_keys += ",\n " + cache_sks[sk] = offset_sk_running + private_keys += sk + new_sk = True + else: + sk_offset = cache_sks[sk] + + new_pk = False + pk = to_c_array(public_key) if public_key != '0x' else '' + + pk_offset = offset_pk_running + # check for repeated pk + if pk not in cache_public_keys: + if num_vectors != 0 and len(pk) != 0: + public_keys += ",\n " + cache_public_keys[pk] = offset_pk_running + public_keys += pk + new_pk = True + else: + pk_offset = cache_public_keys[pk] + + + shared_secrets += ",\n " if num_vectors and shared_size else "" + shared_secrets += to_c_array(test_vector['shared']) + wycheproof_tcid = test_vector['tcId'] + + test_vectors_out += " /" + "* tcId: " + str(test_vector['tcId']) + ". " + test_vector['comment'] + " *" + "/\n" + test_vectors_out += f" {{{pk_offset}, {pk_size}, {sk_offset}, {sk_size}, {offset_shared}, {shared_size}, {expected_result}, {wycheproof_tcid} }},\n" + if new_sk: + offset_sk_running += sk_size + if new_pk: + offset_pk_running += pk_size + offset_shared += shared_size + num_vectors += 1 + +struct_definition = """ +typedef struct { + size_t pk_offset; + size_t pk_len; + size_t sk_offset; + size_t sk_len; + size_t shared_offset; + size_t shared_len; + int expected_result; + int wycheproof_tcid; +} wycheproof_ecdh_testvector; +""" + +print("/* Note: this file was autogenerated using tests_wycheproof_ecdh.py. Do not edit. */") +print(f"#define SECP256K1_ECDH_WYCHEPROOF_NUMBER_TESTVECTORS ({num_vectors})") + +print(struct_definition) + +print("static const unsigned char wycheproof_ecdh_private_keys[] = { " + private_keys + "};\n") +print("static const unsigned char wycheproof_ecdh_public_keys[] = { " + public_keys + "};\n") +print("static const unsigned char wycheproof_ecdh_shared_secrets[] = { " + shared_secrets + "};\n") + +print("static const wycheproof_ecdh_testvector testvectors[SECP256K1_ECDH_WYCHEPROOF_NUMBER_TESTVECTORS] = {") +print(test_vectors_out) +print("};") diff --git a/tools/tests_wycheproof_generate.py b/tools/tests_wycheproof_generate_ecdsa.py similarity index 95% rename from tools/tests_wycheproof_generate.py rename to tools/tests_wycheproof_generate_ecdsa.py index b26dfa89d6..91ff9e318a 100755 --- a/tools/tests_wycheproof_generate.py +++ b/tools/tests_wycheproof_generate_ecdsa.py @@ -9,6 +9,8 @@ import json import sys +from wycheproof_utils import to_c_array + filename_input = sys.argv[1] with open(filename_input) as f: @@ -16,12 +18,6 @@ num_groups = len(doc['testGroups']) -def to_c_array(x): - if x == "": - return "" - s = ',0x'.join(a+b for a,b in zip(x[::2], x[1::2])) - return "0x" + s - num_vectors = 0 offset_msg_running, offset_pk_running, offset_sig = 0, 0, 0 @@ -101,7 +97,7 @@ def to_c_array(x): """ -print("/* Note: this file was autogenerated using tests_wycheproof_generate.py. Do not edit. */") +print("/* Note: this file was autogenerated using tests_wycheproof_generate_ecdsa.py. Do not edit. */") print(f"#define SECP256K1_ECDSA_WYCHEPROOF_NUMBER_TESTVECTORS ({num_vectors})") print(struct_definition) diff --git a/tools/wycheproof_utils.py b/tools/wycheproof_utils.py new file mode 100644 index 0000000000..e8d2edd08f --- /dev/null +++ b/tools/wycheproof_utils.py @@ -0,0 +1,12 @@ +# Copyright (c) 2024 Random "Randy" Lattice and Sean Andersen +# Distributed under the MIT software license, see the accompanying +# file COPYING or https://www.opensource.org/licenses/mit-license.php. +''' +Utility functions for generating C files for testvectors from the Wycheproof project. +''' + +def to_c_array(x): + if x == "": + return "" + s = ',0x'.join(a + b for a, b in zip(x[::2], x[1::2])) + return "0x" + s From d73ed994799ef632ca4a26b4e73f51ec5cfaad79 Mon Sep 17 00:00:00 2001 From: RandomLattice <128569685+RandomLattice@users.noreply.github.com> Date: Tue, 13 May 2025 19:43:09 +0900 Subject: [PATCH 472/557] tests: update wycheproof files Wycheproof ownership was recently moved to C2SP (https://github.com/C2SP/wycheproof). This PR updates all references to the new URL and bumps to the latest version of the vector files. This commit does not change the content of processed .h testvector files. To test: ``` make clean-testvectors testvectors ``` See: https://github.com/bitcoin-core/secp256k1/pull/1492#discussion_r1572443456 Co-authored-by: Sean Andersen <6730974+andozw@users.noreply.github.com> --- CHANGELOG.md | 2 +- src/wycheproof/WYCHEPROOF_COPYING | 12 ++++++------ src/wycheproof/ecdh_secp256k1_test.json | 5 ++++- .../ecdsa_secp256k1_sha256_bitcoin_test.json | 4 ++-- 4 files changed, 13 insertions(+), 10 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 7042171135..12abd35720 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -115,7 +115,7 @@ We strongly recommend updating to 0.3.1 if you use or plan to use Clang >=14 to - Fix "constant-timeness" issue with Clang >=14 that could leave applications using libsecp256k1 vulnerable to a timing side-channel attack. The fix avoids secret-dependent control flow and secret-dependent memory accesses in conditional moves of memory objects when libsecp256k1 is compiled with Clang >=14. #### Added - - Added tests against [Project Wycheproof's](https://github.com/google/wycheproof/) set of ECDSA test vectors (Bitcoin "low-S" variant), a fixed set of test cases designed to trigger various edge cases. + - Added tests against [Project Wycheproof's](https://github.com/C2SP/wycheproof/) set of ECDSA test vectors (Bitcoin "low-S" variant), a fixed set of test cases designed to trigger various edge cases. #### Changed - Increased minimum required CMake version to 3.13. CMake builds remain experimental. diff --git a/src/wycheproof/WYCHEPROOF_COPYING b/src/wycheproof/WYCHEPROOF_COPYING index efe3e8bf4e..269570434c 100644 --- a/src/wycheproof/WYCHEPROOF_COPYING +++ b/src/wycheproof/WYCHEPROOF_COPYING @@ -1,12 +1,12 @@ * The file `ecdsa_secp256k1_sha256_bitcoin_test.json` in this directory - comes from Google's project Wycheproof with git commit - `b063b4aedae951c69df014cd25fa6d69ae9e8cb9`, see - https://github.com/google/wycheproof/blob/b063b4aedae951c69df014cd25fa6d69ae9e8cb9/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json + comes from project Wycheproof with git commit + `df4e933efef449fc88af0c06e028d425d84a9495`, see + https://github.com/C2SP/wycheproof/blob/df4e933efef449fc88af0c06e028d425d84a9495/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json * The file `ecdh_secp256k1_test.json` in this directory - comes from Google's project Wycheproof with git commit - `d9f6ec7d8bd8c96da05368999094e4a75ba5cb3d`, see - https://github.com/google/wycheproof/blob/d9f6ec7d8bd8c96da05368999094e4a75ba5cb3d/testvectors_v1/ecdh_secp256k1_test.json + comes from project Wycheproof with git commit + `df4e933efef449fc88af0c06e028d425d84a9495`, see + https://github.com/C2SP/wycheproof/blob/df4e933efef449fc88af0c06e028d425d84a9495/testvectors_v1/ecdh_secp256k1_test.json * The file `ecdsa_secp256k1_sha256_bitcoin_test.h` is generated from `ecdsa_secp256k1_sha256_bitcoin_test.json` using the script diff --git a/src/wycheproof/ecdh_secp256k1_test.json b/src/wycheproof/ecdh_secp256k1_test.json index 16db618912..71da94723c 100644 --- a/src/wycheproof/ecdh_secp256k1_test.json +++ b/src/wycheproof/ecdh_secp256k1_test.json @@ -1,7 +1,6 @@ { "algorithm" : "ECDH", "schema" : "ecdh_test_schema.json", - "generatorVersion" : "0.9rc5", "numberOfTests" : 752, "header" : [ "Test vectors of type EcdhTest are intended for", @@ -124,6 +123,10 @@ "testGroups" : [ { "type" : "EcdhTest", + "source" : { + "name" : "google-wycheproof", + "version" : "0.9rc5" + }, "curve" : "secp256k1", "encoding" : "asn", "tests" : [ diff --git a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json index 9c90747993..aa0cc8a425 100644 --- a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json +++ b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json @@ -10,7 +10,7 @@ "notes" : { "ArithmeticError" : { "bugType" : "EDGE_CASE", - "description" : "Some implementations of ECDSA have arithmetic errors that occur when intermediate results have extreme values. This test vector has been constructed to test such occurences.", + "description" : "Some implementations of ECDSA have arithmetic errors that occur when intermediate results have extreme values. This test vector has been constructed to test such occurrences.", "cves" : [ "CVE-2017-18146" ] @@ -95,7 +95,7 @@ }, "SignatureMalleabilityBitcoin" : { "bugType" : "SIGNATURE_MALLEABILITY", - "description" : "\"BitCoins\"-curves are curves where signature malleability can be a serious issue. An implementation should only accept a signature s where s < n/2. If an implementation is not meant for uses cases that require signature malleability then this implemenation should be tested with another set of test vectors.", + "description" : "\"BitCoins\"-curves are curves where signature malleability can be a serious issue. An implementation should only accept a signature s where s < n/2. If an implementation is not meant for uses cases that require signature malleability then this implementation should be tested with another set of test vectors.", "effect" : "In bitcoin exchanges, it may be used to make a double deposits or double withdrawals", "links" : [ "https://en.bitcoin.it/wiki/Transaction_malleability", From 05445377f4a1d5837b9e1616c8f1abfdf72ad9c2 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 27 Mar 2025 00:46:30 +0100 Subject: [PATCH 473/557] bench_ecmult: add benchmark for ecmult_const_xonly --- src/bench_ecmult.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/src/bench_ecmult.c b/src/bench_ecmult.c index 172292d570..b2bab65d26 100644 --- a/src/bench_ecmult.c +++ b/src/bench_ecmult.c @@ -56,6 +56,7 @@ typedef struct { /* Benchmark output. */ secp256k1_gej* output; + secp256k1_fe* output_xonly; } bench_data; /* Hashes x into [0, POINTS) twice and store the result in offset1 and offset2. */ @@ -123,6 +124,32 @@ static void bench_ecmult_const_teardown(void* arg, int iters) { bench_ecmult_teardown_helper(data, &data->offset1, &data->offset2, NULL, iters); } +static void bench_ecmult_const_xonly(void* arg, int iters) { + bench_data* data = (bench_data*)arg; + int i; + + for (i = 0; i < iters; ++i) { + const secp256k1_ge* pubkey = &data->pubkeys[(data->offset1+i) % POINTS]; + const secp256k1_scalar* scalar = &data->scalars[(data->offset2+i) % POINTS]; + int known_on_curve = 1; + secp256k1_ecmult_const_xonly(&data->output_xonly[i], &pubkey->x, NULL, scalar, known_on_curve); + } +} + +static void bench_ecmult_const_xonly_teardown(void* arg, int iters) { + bench_data* data = (bench_data*)arg; + int i; + + /* verify by comparing with x coordinate of regular ecmult result */ + for (i = 0; i < iters; ++i) { + const secp256k1_gej* pubkey_gej = &data->pubkeys_gej[(data->offset1+i) % POINTS]; + const secp256k1_scalar* scalar = &data->scalars[(data->offset2+i) % POINTS]; + secp256k1_gej expected_gej; + secp256k1_ecmult(&expected_gej, pubkey_gej, scalar, NULL); + CHECK(secp256k1_gej_eq_x_var(&data->output_xonly[i], &expected_gej)); + } +} + static void bench_ecmult_1p(void* arg, int iters) { bench_data* data = (bench_data*)arg; int i; @@ -171,6 +198,8 @@ static void run_ecmult_bench(bench_data* data, int iters) { run_benchmark(str, bench_ecmult_gen, bench_ecmult_setup, bench_ecmult_gen_teardown, data, 10, iters); sprintf(str, "ecmult_const"); run_benchmark(str, bench_ecmult_const, bench_ecmult_setup, bench_ecmult_const_teardown, data, 10, iters); + sprintf(str, "ecmult_const_xonly"); + run_benchmark(str, bench_ecmult_const_xonly, bench_ecmult_setup, bench_ecmult_const_xonly_teardown, data, 10, iters); /* ecmult with non generator point */ sprintf(str, "ecmult_1p"); run_benchmark(str, bench_ecmult_1p, bench_ecmult_setup, bench_ecmult_1p_teardown, data, 10, iters); @@ -319,6 +348,7 @@ int main(int argc, char **argv) { data.pubkeys_gej = malloc(sizeof(secp256k1_gej) * POINTS); data.expected_output = malloc(sizeof(secp256k1_gej) * (iters + 1)); data.output = malloc(sizeof(secp256k1_gej) * (iters + 1)); + data.output_xonly = malloc(sizeof(secp256k1_fe) * (iters + 1)); /* Generate a set of scalars, and private/public keypairs. */ secp256k1_gej_set_ge(&data.pubkeys_gej[0], &secp256k1_ge_const_g); @@ -361,6 +391,7 @@ int main(int argc, char **argv) { free(data.pubkeys); free(data.pubkeys_gej); free(data.seckeys); + free(data.output_xonly); free(data.output); free(data.expected_output); From 3a4f448cb46eae2aec991b95e4c686de2a4ba906 Mon Sep 17 00:00:00 2001 From: "Peter.Dettman" Date: Tue, 20 May 2025 17:48:22 +0700 Subject: [PATCH 474/557] Assert field magnitude at control-flow join --- src/ecmult_const_impl.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/ecmult_const_impl.h b/src/ecmult_const_impl.h index 0d78f7c3ce..4f66209105 100644 --- a/src/ecmult_const_impl.h +++ b/src/ecmult_const_impl.h @@ -373,6 +373,8 @@ static int secp256k1_ecmult_const_xonly(secp256k1_fe* r, const secp256k1_fe *n, } } + SECP256K1_FE_VERIFY_MAGNITUDE(&g, 2); + /* Compute base point P = (n*g, g^2), the effective affine version of (n*g, g^2, v), which has * corresponding affine X coordinate n/d. */ secp256k1_fe_mul(&p.x, &g, n); From 3af71987a8f18b96dd21d8a4642df6f9e6e4c9c7 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 30 May 2025 11:59:31 +0100 Subject: [PATCH 475/557] cmake: Bump minimum required CMake version to 3.22 Ubuntu 20.04 LTS has reached the end of standard support. There no longer appear to be compelling reasons to maintain compatibility with CMake 3.16. The new suggested minimum, CMake 3.22, is shipped with Ubuntu 22.04 LTS, which is supported until April 2027. This change also introduces new CMake policies, from CMP0098 to CMP0128. --- CMakeLists.txt | 13 +------------ CMakePresets.json | 1 - src/CMakeLists.txt | 20 ++++++-------------- 3 files changed, 7 insertions(+), 27 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 2b7737146d..b51576c8a2 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,4 +1,4 @@ -cmake_minimum_required(VERSION 3.16) +cmake_minimum_required(VERSION 3.22) #============================= # Project / Package metadata @@ -15,17 +15,6 @@ project(libsecp256k1 enable_testing() list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) -if(CMAKE_VERSION VERSION_LESS 3.21) - # Emulates CMake 3.21+ behavior. - if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) - set(PROJECT_IS_TOP_LEVEL ON) - set(${PROJECT_NAME}_IS_TOP_LEVEL ON) - else() - set(PROJECT_IS_TOP_LEVEL OFF) - set(${PROJECT_NAME}_IS_TOP_LEVEL OFF) - endif() -endif() - # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html diff --git a/CMakePresets.json b/CMakePresets.json index b35cd80579..6ed52b8fa6 100644 --- a/CMakePresets.json +++ b/CMakePresets.json @@ -1,5 +1,4 @@ { - "cmakeMinimumRequired": {"major": 3, "minor": 21, "patch": 0}, "version": 3, "configurePresets": [ { diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index f31b8c8f55..0e2a27b568 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -48,20 +48,12 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Linux") VERSION ${${PROJECT_NAME}_soversion}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION} ) elseif(APPLE) - if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.17) - math(EXPR ${PROJECT_NAME}_compatibility_version "${${PROJECT_NAME}_LIB_VERSION_CURRENT} + 1") - set_target_properties(secp256k1 PROPERTIES - MACHO_COMPATIBILITY_VERSION ${${PROJECT_NAME}_compatibility_version} - MACHO_CURRENT_VERSION ${${PROJECT_NAME}_compatibility_version}.${${PROJECT_NAME}_LIB_VERSION_REVISION} - ) - unset(${PROJECT_NAME}_compatibility_version) - elseif(BUILD_SHARED_LIBS) - message(WARNING - "The 'compatibility version' and 'current version' values of the DYLIB " - "will diverge from the values set by the GNU Libtool. To ensure " - "compatibility, it is recommended to upgrade CMake to at least version 3.17." - ) - endif() + math(EXPR ${PROJECT_NAME}_compatibility_version "${${PROJECT_NAME}_LIB_VERSION_CURRENT} + 1") + set_target_properties(secp256k1 PROPERTIES + MACHO_COMPATIBILITY_VERSION ${${PROJECT_NAME}_compatibility_version} + MACHO_CURRENT_VERSION ${${PROJECT_NAME}_compatibility_version}.${${PROJECT_NAME}_LIB_VERSION_REVISION} + ) + unset(${PROJECT_NAME}_compatibility_version) elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows") set(${PROJECT_NAME}_windows "secp256k1") if(MSVC) From c32715b2a0f574dba7bb2a953b97bdb0e3e9b2b0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 4 Jun 2025 13:13:33 +0100 Subject: [PATCH 476/557] cmake, move-only: Move module option processing to `src/CMakeLists.txt` This change simplifies the following commit. --- CMakeLists.txt | 34 ---------------------------------- src/CMakeLists.txt | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 34 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index b51576c8a2..02abaa970f 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -52,40 +52,6 @@ option(SECP256K1_ENABLE_MODULE_SCHNORRSIG "Enable schnorrsig module." ON) option(SECP256K1_ENABLE_MODULE_MUSIG "Enable musig module." ON) option(SECP256K1_ENABLE_MODULE_ELLSWIFT "Enable ElligatorSwift module." ON) -# Processing must be done in a topological sorting of the dependency graph -# (dependent module first). -if(SECP256K1_ENABLE_MODULE_ELLSWIFT) - add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) -endif() - -if(SECP256K1_ENABLE_MODULE_MUSIG) - if(DEFINED SECP256K1_ENABLE_MODULE_SCHNORRSIG AND NOT SECP256K1_ENABLE_MODULE_SCHNORRSIG) - message(FATAL_ERROR "Module dependency error: You have disabled the schnorrsig module explicitly, but it is required by the musig module.") - endif() - set(SECP256K1_ENABLE_MODULE_SCHNORRSIG ON) - add_compile_definitions(ENABLE_MODULE_MUSIG=1) -endif() - -if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) - if(DEFINED SECP256K1_ENABLE_MODULE_EXTRAKEYS AND NOT SECP256K1_ENABLE_MODULE_EXTRAKEYS) - message(FATAL_ERROR "Module dependency error: You have disabled the extrakeys module explicitly, but it is required by the schnorrsig module.") - endif() - set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON) - add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1) -endif() - -if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) - add_compile_definitions(ENABLE_MODULE_EXTRAKEYS=1) -endif() - -if(SECP256K1_ENABLE_MODULE_RECOVERY) - add_compile_definitions(ENABLE_MODULE_RECOVERY=1) -endif() - -if(SECP256K1_ENABLE_MODULE_ECDH) - add_compile_definitions(ENABLE_MODULE_ECDH=1) -endif() - option(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS "Enable external default callback functions." OFF) if(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS) add_compile_definitions(USE_EXTERNAL_DEFAULT_CALLBACKS=1) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 0e2a27b568..c3cdd959c4 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -1,6 +1,40 @@ # Must be included before CMAKE_INSTALL_INCLUDEDIR is used. include(GNUInstallDirs) +# Processing must be done in a topological sorting of the dependency graph +# (dependent module first). +if(SECP256K1_ENABLE_MODULE_ELLSWIFT) + add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) +endif() + +if(SECP256K1_ENABLE_MODULE_MUSIG) + if(DEFINED SECP256K1_ENABLE_MODULE_SCHNORRSIG AND NOT SECP256K1_ENABLE_MODULE_SCHNORRSIG) + message(FATAL_ERROR "Module dependency error: You have disabled the schnorrsig module explicitly, but it is required by the musig module.") + endif() + set(SECP256K1_ENABLE_MODULE_SCHNORRSIG ON) + add_compile_definitions(ENABLE_MODULE_MUSIG=1) +endif() + +if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) + if(DEFINED SECP256K1_ENABLE_MODULE_EXTRAKEYS AND NOT SECP256K1_ENABLE_MODULE_EXTRAKEYS) + message(FATAL_ERROR "Module dependency error: You have disabled the extrakeys module explicitly, but it is required by the schnorrsig module.") + endif() + set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON) + add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1) +endif() + +if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) + add_compile_definitions(ENABLE_MODULE_EXTRAKEYS=1) +endif() + +if(SECP256K1_ENABLE_MODULE_RECOVERY) + add_compile_definitions(ENABLE_MODULE_RECOVERY=1) +endif() + +if(SECP256K1_ENABLE_MODULE_ECDH) + add_compile_definitions(ENABLE_MODULE_ECDH=1) +endif() + add_library(secp256k1_precomputed OBJECT EXCLUDE_FROM_ALL precomputed_ecmult.c precomputed_ecmult_gen.c From 6f67151ee2e94a0ce14522632edcc153f1cde7e6 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 4 Jun 2025 14:46:10 +0100 Subject: [PATCH 477/557] cmake: Use `PUBLIC_HEADER` target property This change simplifies the installation logic. --- src/CMakeLists.txt | 47 ++++++++++++++++++---------------------------- 1 file changed, 18 insertions(+), 29 deletions(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index c3cdd959c4..bed1b53303 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -1,10 +1,15 @@ -# Must be included before CMAKE_INSTALL_INCLUDEDIR is used. -include(GNUInstallDirs) +add_library(secp256k1) + +set_property(TARGET secp256k1 PROPERTY PUBLIC_HEADER + ${PROJECT_SOURCE_DIR}/include/secp256k1.h + ${PROJECT_SOURCE_DIR}/include/secp256k1_preallocated.h +) # Processing must be done in a topological sorting of the dependency graph # (dependent module first). if(SECP256K1_ENABLE_MODULE_ELLSWIFT) add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) + set_property(TARGET secp256k1 APPEND PROPERTY PUBLIC_HEADER ${PROJECT_SOURCE_DIR}/include/secp256k1_ellswift.h) endif() if(SECP256K1_ENABLE_MODULE_MUSIG) @@ -13,6 +18,7 @@ if(SECP256K1_ENABLE_MODULE_MUSIG) endif() set(SECP256K1_ENABLE_MODULE_SCHNORRSIG ON) add_compile_definitions(ENABLE_MODULE_MUSIG=1) + set_property(TARGET secp256k1 APPEND PROPERTY PUBLIC_HEADER ${PROJECT_SOURCE_DIR}/include/secp256k1_musig.h) endif() if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) @@ -21,18 +27,22 @@ if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) endif() set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON) add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1) + set_property(TARGET secp256k1 APPEND PROPERTY PUBLIC_HEADER ${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h) endif() if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) add_compile_definitions(ENABLE_MODULE_EXTRAKEYS=1) + set_property(TARGET secp256k1 APPEND PROPERTY PUBLIC_HEADER ${PROJECT_SOURCE_DIR}/include/secp256k1_extrakeys.h) endif() if(SECP256K1_ENABLE_MODULE_RECOVERY) add_compile_definitions(ENABLE_MODULE_RECOVERY=1) + set_property(TARGET secp256k1 APPEND PROPERTY PUBLIC_HEADER ${PROJECT_SOURCE_DIR}/include/secp256k1_recovery.h) endif() if(SECP256K1_ENABLE_MODULE_ECDH) add_compile_definitions(ENABLE_MODULE_ECDH=1) + set_property(TARGET secp256k1 APPEND PROPERTY PUBLIC_HEADER ${PROJECT_SOURCE_DIR}/include/secp256k1_ecdh.h) endif() add_library(secp256k1_precomputed OBJECT EXCLUDE_FROM_ALL @@ -42,7 +52,7 @@ add_library(secp256k1_precomputed OBJECT EXCLUDE_FROM_ALL # Add objects explicitly rather than linking to the object libs to keep them # from being exported. -add_library(secp256k1 secp256k1.c $) +target_sources(secp256k1 PRIVATE secp256k1.c $) add_library(secp256k1_asm INTERFACE) if(SECP256K1_ASM STREQUAL "arm32") @@ -68,7 +78,6 @@ set_target_properties(secp256k1_precomputed PROPERTIES POSITION_INDEPENDENT_CODE target_include_directories(secp256k1 INTERFACE # Add the include path for parent projects so that they don't have to manually add it. $>:${PROJECT_SOURCE_DIR}/include>> - $ ) # This emulates Libtool to make sure Libtool and CMake agree on the ABI version, @@ -136,36 +145,16 @@ if(SECP256K1_BUILD_CTIME_TESTS) endif() if(SECP256K1_INSTALL) + include(GNUInstallDirs) + target_include_directories(secp256k1 INTERFACE + $ + ) install(TARGETS secp256k1 EXPORT ${PROJECT_NAME}-targets RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} - ) - set(${PROJECT_NAME}_headers - "${PROJECT_SOURCE_DIR}/include/secp256k1.h" - "${PROJECT_SOURCE_DIR}/include/secp256k1_preallocated.h" - ) - if(SECP256K1_ENABLE_MODULE_ECDH) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ecdh.h") - endif() - if(SECP256K1_ENABLE_MODULE_RECOVERY) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_recovery.h") - endif() - if(SECP256K1_ENABLE_MODULE_EXTRAKEYS) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_extrakeys.h") - endif() - if(SECP256K1_ENABLE_MODULE_SCHNORRSIG) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h") - endif() - if(SECP256K1_ENABLE_MODULE_MUSIG) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_musig.h") - endif() - if(SECP256K1_ENABLE_MODULE_ELLSWIFT) - list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ellswift.h") - endif() - install(FILES ${${PROJECT_NAME}_headers} - DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} + PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ) install(EXPORT ${PROJECT_NAME}-targets From 3f31ac43e09df14e19ea1d90684f757bed17d299 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 4 Jun 2025 19:13:49 +0100 Subject: [PATCH 478/557] doc: Promote "Building with CMake" to standard procedure The CMake-based build system has demonstrated its maturity through its use in Bitcoin Core 29.0. --- README.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index f7a59b2b96..5f35b37b2d 100644 --- a/README.md +++ b/README.md @@ -108,8 +108,8 @@ Building with Autotools To compile optional modules (such as Schnorr signatures), you need to run `./configure` with additional flags (such as `--enable-module-schnorrsig`). Run `./configure --help` to see the full list of available flags. -Building with CMake (experimental) ----------------------------------- +Building with CMake +------------------- To maintain a pristine source tree, CMake encourages to perform an out-of-source build by using a separate dedicated build tree. From 37dd422b5cecad54db40a7304f03bff552d8d9fb Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 11 Jun 2025 01:01:34 +0100 Subject: [PATCH 479/557] cmake: Emulate Libtool's behavior on FreeBSD --- src/CMakeLists.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 0e2a27b568..97b5b5923e 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -43,7 +43,7 @@ math(EXPR ${PROJECT_NAME}_soversion "${${PROJECT_NAME}_LIB_VERSION_CURRENT} - ${ set_target_properties(secp256k1 PROPERTIES SOVERSION ${${PROJECT_NAME}_soversion} ) -if(CMAKE_SYSTEM_NAME STREQUAL "Linux") +if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|FreeBSD)$") set_target_properties(secp256k1 PROPERTIES VERSION ${${PROJECT_NAME}_soversion}.${${PROJECT_NAME}_LIB_VERSION_AGE}.${${PROJECT_NAME}_LIB_VERSION_REVISION} ) From 819210974bd91bbbe6cc2e691b12c3e6130aa9d5 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sat, 7 Jun 2025 16:15:29 +0200 Subject: [PATCH 480/557] README: add link to musig example, generalize module enabling hint Co-authored-by: Jonas Nick --- README.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 5f35b37b2d..3d3118adf9 100644 --- a/README.md +++ b/README.md @@ -151,8 +151,9 @@ Usage examples can be found in the [examples](examples) directory. To compile th * [Schnorr signatures example](examples/schnorr.c) * [Deriving a shared secret (ECDH) example](examples/ecdh.c) * [ElligatorSwift key exchange example](examples/ellswift.c) + * [MuSig2 Schnorr multi-signatures example](examples/musig.c) -To compile the Schnorr signature and ECDH examples, you also need to configure with `--enable-module-schnorrsig` and `--enable-module-ecdh`. +To compile the examples, make sure the corresponding modules are enabled. Benchmark ------------ From 145ae3e28d587dd04866ec5893be9270bc99289a Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Tue, 3 Jun 2025 18:17:33 +0000 Subject: [PATCH 481/557] cmake: add a helper for linking into static libs Parent projects (Bitcoin Core in this case) may wish to include secp256k1 in another static library (libbitcoinkernel) so that users are not forced to bring their own static libsecp256k1. Unfortunately, CMake lacks the machinery to link (combine) one static lib into another. To work around this, secp256k1_objs is exposed as an interface library which parent projects can "link" into static libs.. --- src/CMakeLists.txt | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index bed1b53303..291e0cbb8b 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -54,6 +54,11 @@ add_library(secp256k1_precomputed OBJECT EXCLUDE_FROM_ALL # from being exported. target_sources(secp256k1 PRIVATE secp256k1.c $) +# Create a helper lib that parent projects can use to link secp256k1 into a +# static lib. +add_library(secp256k1_objs INTERFACE) +target_sources(secp256k1_objs INTERFACE $ $) + add_library(secp256k1_asm INTERFACE) if(SECP256K1_ASM STREQUAL "arm32") add_library(secp256k1_asm_arm OBJECT EXCLUDE_FROM_ALL) @@ -61,6 +66,7 @@ if(SECP256K1_ASM STREQUAL "arm32") asm/field_10x26_arm.s ) target_sources(secp256k1 PRIVATE $) + target_sources(secp256k1_objs INTERFACE $) target_link_libraries(secp256k1_asm INTERFACE secp256k1_asm_arm) endif() @@ -75,10 +81,13 @@ endif() get_target_property(use_pic secp256k1 POSITION_INDEPENDENT_CODE) set_target_properties(secp256k1_precomputed PROPERTIES POSITION_INDEPENDENT_CODE ${use_pic}) +# Add the include path for parent projects so that they don't have to manually add it. target_include_directories(secp256k1 INTERFACE - # Add the include path for parent projects so that they don't have to manually add it. $>:${PROJECT_SOURCE_DIR}/include>> ) +set_target_properties(secp256k1_objs PROPERTIES + INTERFACE_INCLUDE_DIRECTORIES "$" +) # This emulates Libtool to make sure Libtool and CMake agree on the ABI version, # see below "Calculate the version variables" in build-aux/ltmain.sh. From b77aae9226b95d65da53dad3d418229adc25311a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 19 Jun 2025 18:57:48 +0100 Subject: [PATCH 482/557] ci: Rename Docker image tag to reflect architecture --- .github/workflows/ci.yml | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index a3108d6bb1..007e8ff942 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -60,7 +60,7 @@ jobs: uses: docker/build-push-action@v5 with: file: ./ci/linux-debian.Dockerfile - tags: linux-debian-image + tags: x64-debian-image cache-from: type=gha cache-to: type=gha,mode=min @@ -106,7 +106,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -142,7 +142,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -174,7 +174,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -215,7 +215,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -258,7 +258,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -290,7 +290,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -333,7 +333,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -377,7 +377,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -428,7 +428,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -471,7 +471,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -678,7 +678,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -697,7 +697,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: linux-debian-image + tag: x64-debian-image command: | g++ -Werror include/*.h clang -Werror -x c++-header include/*.h From bcf77346b9d5b5084ff158c4d84f719da690d33c Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 19 Jun 2025 19:09:18 +0100 Subject: [PATCH 483/557] ci: Add `arm64` architecture to `docker_cache` job --- .github/workflows/ci.yml | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 007e8ff942..459875d254 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -46,8 +46,18 @@ env: jobs: docker_cache: - name: "Build Docker image" - runs-on: ubuntu-latest + name: "Build ${{ matrix.arch }} Docker image" + runs-on: ${{ matrix.runner }} + + strategy: + fail-fast: false + matrix: + include: + - arch: x64 + runner: ubuntu-latest + - arch: arm64 + runner: ubuntu-24.04-arm + steps: - name: Set up Docker Buildx uses: docker/setup-buildx-action@v3 @@ -60,7 +70,7 @@ jobs: uses: docker/build-push-action@v5 with: file: ./ci/linux-debian.Dockerfile - tags: x64-debian-image + tags: ${{ matrix.arch }}-debian-image cache-from: type=gha cache-to: type=gha,mode=min From e814b79a8b7587b39432048a170e005c9efaa1cc Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 19 Jun 2025 20:08:32 +0100 Subject: [PATCH 484/557] ci: Switch `arm64_debian` from QEMU to native `arm64` Docker image --- .github/workflows/ci.yml | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 459875d254..448475e7e2 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -74,7 +74,7 @@ jobs: cache-from: type=gha cache-to: type=gha,mode=min - linux_debian: + x86_64-debian: name: "x86_64: Linux (Debian stable)" runs-on: ubuntu-latest needs: docker_cache @@ -231,15 +231,13 @@ jobs: uses: ./.github/actions/print-logs if: ${{ !cancelled() }} - arm64_debian: - name: "ARM64: Linux (Debian stable, QEMU)" - runs-on: ubuntu-latest + arm64-debian: + name: "arm64: Linux (Debian stable)" + runs-on: ubuntu-24.04-arm needs: docker_cache env: - WRAPPER_CMD: 'qemu-aarch64' SECP256K1_TEST_ITERS: 16 - HOST: 'aarch64-linux-gnu' WITH_VALGRIND: 'no' ECDH: 'yes' RECOVERY: 'yes' @@ -248,27 +246,25 @@ jobs: MUSIG: 'yes' ELLSWIFT: 'yes' CTIMETESTS: 'no' + CC: ${{ matrix.cc }} strategy: fail-fast: false matrix: - configuration: - - env_vars: { } # gcc - - env_vars: # clang - CC: 'clang --target=aarch64-linux-gnu' - - env_vars: # clang-snapshot - CC: 'clang-snapshot --target=aarch64-linux-gnu' + cc: + - 'gcc' + - 'clang' + - 'clang-snapshot' steps: - name: Checkout uses: actions/checkout@v4 - name: CI script - env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image + tag: arm64-debian-image - name: Print logs uses: ./.github/actions/print-logs From 5fafdfc30f3ed113d8037aa2e9ee12134e77df33 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 19 Jun 2025 20:09:01 +0100 Subject: [PATCH 485/557] ci: Move `gcc-snapshot` build for `arm64` from Cirrus to GHA --- .cirrus.yml | 18 ------------------ .github/workflows/ci.yml | 1 + 2 files changed, 1 insertion(+), 18 deletions(-) diff --git a/.cirrus.yml b/.cirrus.yml index 023cd1916c..b3a5cecbc4 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -63,24 +63,6 @@ linux_arm64_container_snippet: &LINUX_ARM64_CONTAINER test_script: - docker run --rm --mount "type=bind,src=./,dst=/ci_secp256k1" --env-file /tmp/env --replace --name "ci_secp256k1_arm" "ci_secp256k1_arm" bash -c "cd /ci_secp256k1/ && ./ci/ci.sh" -task: - name: "ARM64: Linux (Debian stable)" - persistent_worker: - labels: - type: arm64 - env: - ECDH: yes - RECOVERY: yes - EXTRAKEYS: yes - SCHNORRSIG: yes - MUSIG: yes - ELLSWIFT: yes - matrix: - # Currently only gcc-snapshot, the other compilers are tested on GHA with QEMU - - env: { CC: 'gcc-snapshot' } - << : *LINUX_ARM64_CONTAINER - << : *CAT_LOGS - task: name: "ARM64: Linux (Debian stable), Valgrind" persistent_worker: diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 448475e7e2..d1e3096ee2 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -254,6 +254,7 @@ jobs: cc: - 'gcc' - 'clang' + - 'gcc-snapshot' - 'clang-snapshot' steps: From 004f57fcd86de3ea8cb0e6a16f5bb665db9d1ed4 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 19 Jun 2025 20:09:36 +0100 Subject: [PATCH 486/557] ci: Move Valgrind build for `arm64` from Cirrus to GHA --- .cirrus.yml | 86 ---------------------------------------- .github/workflows/ci.yml | 38 +++++++++++++----- 2 files changed, 29 insertions(+), 95 deletions(-) delete mode 100644 .cirrus.yml diff --git a/.cirrus.yml b/.cirrus.yml deleted file mode 100644 index b3a5cecbc4..0000000000 --- a/.cirrus.yml +++ /dev/null @@ -1,86 +0,0 @@ -env: - ### cirrus config - CIRRUS_CLONE_DEPTH: 1 - ### compiler options - HOST: - WRAPPER_CMD: - # Specific warnings can be disabled with -Wno-error=foo. - # -pedantic-errors is not equivalent to -Werror=pedantic and thus not implied by -Werror according to the GCC manual. - WERROR_CFLAGS: -Werror -pedantic-errors - MAKEFLAGS: -j4 - BUILD: check - ### secp256k1 config - ECMULTWINDOW: 15 - ECMULTGENKB: 22 - ASM: no - WIDEMUL: auto - WITH_VALGRIND: yes - EXTRAFLAGS: - ### secp256k1 modules - EXPERIMENTAL: no - ECDH: no - RECOVERY: no - EXTRAKEYS: no - SCHNORRSIG: no - MUSIG: no - ELLSWIFT: no - ### test options - SECP256K1_TEST_ITERS: 64 - BENCH: yes - SECP256K1_BENCH_ITERS: 2 - CTIMETESTS: yes - SYMBOL_CHECK: yes - VIRTUAL_ENV: /root/venv - # Compile and run the tests - EXAMPLES: yes - -cat_logs_snippet: &CAT_LOGS - always: - cat_tests_log_script: - - cat tests.log || true - cat_noverify_tests_log_script: - - cat noverify_tests.log || true - cat_exhaustive_tests_log_script: - - cat exhaustive_tests.log || true - cat_ctime_tests_log_script: - - cat ctime_tests.log || true - cat_bench_log_script: - - cat bench.log || true - cat_config_log_script: - - cat config.log || true - cat_test_env_script: - - cat test_env.log || true - cat_ci_env_script: - - env - -linux_arm64_container_snippet: &LINUX_ARM64_CONTAINER - env_script: - - export PATH="$VIRTUAL_ENV/bin:$PATH" - - env | tee /tmp/env - build_script: - - DOCKER_BUILDKIT=1 docker build --file "ci/linux-debian.Dockerfile" --tag="ci_secp256k1_arm" - - docker image prune --force # Cleanup stale layers - test_script: - - docker run --rm --mount "type=bind,src=./,dst=/ci_secp256k1" --env-file /tmp/env --replace --name "ci_secp256k1_arm" "ci_secp256k1_arm" bash -c "cd /ci_secp256k1/ && ./ci/ci.sh" - -task: - name: "ARM64: Linux (Debian stable), Valgrind" - persistent_worker: - labels: - type: arm64 - env: - ECDH: yes - RECOVERY: yes - EXTRAKEYS: yes - SCHNORRSIG: yes - MUSIG: yes - ELLSWIFT: yes - WRAPPER_CMD: 'valgrind --error-exitcode=42' - SECP256K1_TEST_ITERS: 2 - matrix: - - env: { CC: 'gcc' } - - env: { CC: 'clang' } - - env: { CC: 'gcc-snapshot' } - - env: { CC: 'clang-snapshot' } - << : *LINUX_ARM64_CONTAINER - << : *CAT_LOGS diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index d1e3096ee2..69c7fdf6fa 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -305,18 +305,38 @@ jobs: valgrind_debian: - name: "Valgrind (memcheck)" - runs-on: ubuntu-latest + name: "Valgrind ${{ matrix.binary_arch }} (memcheck)" + runs-on: ${{ matrix.runner }} needs: docker_cache strategy: fail-fast: false matrix: - configuration: - - env_vars: { CC: 'clang', ASM: 'auto' } - - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'auto' } - - env_vars: { CC: 'clang', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } - - env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } + include: + - docker_arch: x64 + runner: ubuntu-latest + binary_arch: x64 + env_vars: { CC: 'clang', ASM: 'auto' } + - docker_arch: x64 + runner: ubuntu-latest + binary_arch: i686 + env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'auto' } + - docker_arch: arm64 + runner: ubuntu-24.04-arm + binary_arch: arm64 + env_vars: { CC: 'clang', ASM: 'auto' } + - docker_arch: x64 + runner: ubuntu-latest + binary_arch: x64 + env_vars: { CC: 'clang', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } + - docker_arch: x64 + runner: ubuntu-latest + binary_arch: i686 + env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } + - docker_arch: arm64 + runner: ubuntu-24.04-arm + binary_arch: arm64 + env_vars: { CC: 'clang', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } env: # The `--error-exitcode` is required to make the test fail if valgrind found errors, @@ -336,11 +356,11 @@ jobs: uses: actions/checkout@v4 - name: CI script - env: ${{ matrix.configuration.env_vars }} + env: ${{ matrix.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image + tag: ${{ matrix.docker_arch }}-debian-image - name: Print logs uses: ./.github/actions/print-logs From add146e1014a6d5c585bbf3e10a765c87194b795 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Thu, 19 Jun 2025 21:12:05 +0100 Subject: [PATCH 487/557] ci: Bump GCC snapshot major version to 16 --- ci/linux-debian.Dockerfile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 547b402232..92ec80d2b1 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -40,7 +40,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ apt-get clean && rm -rf /var/lib/apt/lists/* # Build and install gcc snapshot -ARG GCC_SNAPSHOT_MAJOR=15 +ARG GCC_SNAPSHOT_MAJOR=16 RUN apt-get update && apt-get install --no-install-recommends -y wget libgmp-dev libmpfr-dev libmpc-dev flex && \ mkdir gcc && cd gcc && \ wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --level 1 --no-directories "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}" && \ From 7106dce6fd410043fc297139c6307cb6016d2a7b Mon Sep 17 00:00:00 2001 From: Daniel Pfeifer Date: Fri, 27 Jun 2025 18:59:02 +0200 Subject: [PATCH 488/557] cmake: configure libsecp256k1.pc during install When installing to a given prefix, make sure that the .pc file contains that prefix rather than the value of CMAKE_INSTALL_PREFIX that the project was configured with. --- cmake/GeneratePkgConfigFile.cmake | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/cmake/GeneratePkgConfigFile.cmake b/cmake/GeneratePkgConfigFile.cmake index 9c1d7f1ddd..ff33595770 100644 --- a/cmake/GeneratePkgConfigFile.cmake +++ b/cmake/GeneratePkgConfigFile.cmake @@ -1,8 +1,12 @@ function(generate_pkg_config_file in_file) - set(prefix ${CMAKE_INSTALL_PREFIX}) + set(prefix "@CMAKE_INSTALL_PREFIX@") set(exec_prefix \${prefix}) set(libdir \${exec_prefix}/${CMAKE_INSTALL_LIBDIR}) set(includedir \${prefix}/${CMAKE_INSTALL_INCLUDEDIR}) set(PACKAGE_VERSION ${PROJECT_VERSION}) - configure_file(${in_file} ${PROJECT_NAME}.pc @ONLY) + configure_file(${in_file} ${PROJECT_NAME}.pc.in @ONLY) + install(CODE "configure_file( + \"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc.in\" + \"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc\" + @ONLY)" ALL_COMPONENTS) endfunction() From 0dfe387dbe345d92d12b3de5c41a685fb6654211 Mon Sep 17 00:00:00 2001 From: Daniel Pfeifer Date: Thu, 19 Jun 2025 10:02:23 +0200 Subject: [PATCH 489/557] cmake: support the use of launchers in ctest -S scripts --- CMakeLists.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 02abaa970f..26cc49b157 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -13,6 +13,7 @@ project(libsecp256k1 LANGUAGES C ) enable_testing() +include(CTestUseLaunchers) # Allow users to set CTEST_USE_LAUNCHERS in custom `ctest -S` scripts. list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) # The library version is based on libtool versioning of the ABI. The set of From 44b205e9eeac216a1cd15a910709606aca633947 Mon Sep 17 00:00:00 2001 From: Daniel Pfeifer Date: Mon, 30 Jun 2025 16:49:14 +0200 Subject: [PATCH 490/557] Revert "cmake: configure libsecp256k1.pc during install" This reverts commit 7106dce6fd410043fc297139c6307cb6016d2a7b. This causes a regression for packaging, as the generated `.pc` file will contain the location that was used to build the package archive. --- cmake/GeneratePkgConfigFile.cmake | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/cmake/GeneratePkgConfigFile.cmake b/cmake/GeneratePkgConfigFile.cmake index ff33595770..9c1d7f1ddd 100644 --- a/cmake/GeneratePkgConfigFile.cmake +++ b/cmake/GeneratePkgConfigFile.cmake @@ -1,12 +1,8 @@ function(generate_pkg_config_file in_file) - set(prefix "@CMAKE_INSTALL_PREFIX@") + set(prefix ${CMAKE_INSTALL_PREFIX}) set(exec_prefix \${prefix}) set(libdir \${exec_prefix}/${CMAKE_INSTALL_LIBDIR}) set(includedir \${prefix}/${CMAKE_INSTALL_INCLUDEDIR}) set(PACKAGE_VERSION ${PROJECT_VERSION}) - configure_file(${in_file} ${PROJECT_NAME}.pc.in @ONLY) - install(CODE "configure_file( - \"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc.in\" - \"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc\" - @ONLY)" ALL_COMPONENTS) + configure_file(${in_file} ${PROJECT_NAME}.pc @ONLY) endfunction() From 3352f9d667afd92e553d79604c7e884121e18aa5 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Thu, 10 Jul 2025 17:46:51 +0200 Subject: [PATCH 491/557] ci: enable musig module for native macOS arm64 job --- .github/workflows/ci.yml | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 69c7fdf6fa..805281c330 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -573,13 +573,13 @@ jobs: fail-fast: false matrix: env_vars: - - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128_struct', ECMULTGENPRECISION: 2, ECMULTWINDOW: 4 } - - { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', EXTRAKEYS: 'yes', SCHNORRSIG: 'yes', MUSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY' } - BUILD: 'distcheck' steps: From e5297f6d79b4fb91c8dae27e26958155811c33a9 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 2 Jul 2025 11:43:32 +0200 Subject: [PATCH 492/557] build: Refactor visibility logic --- include/secp256k1.h | 71 ++++++++++++++++++++------------------------- 1 file changed, 32 insertions(+), 39 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index 1d25a02ab2..d67d964253 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -121,45 +121,38 @@ typedef int (*secp256k1_nonce_function)( #endif /* Symbol visibility. */ -#if defined(_WIN32) - /* GCC for Windows (e.g., MinGW) accepts the __declspec syntax - * for MSVC compatibility. A __declspec declaration implies (but is not - * exactly equivalent to) __attribute__ ((visibility("default"))), and so we - * actually want __declspec even on GCC, see "Microsoft Windows Function - * Attributes" in the GCC manual and the recommendations in - * https://gcc.gnu.org/wiki/Visibility. */ -# if defined(SECP256K1_BUILD) -# if defined(DLL_EXPORT) || defined(SECP256K1_DLL_EXPORT) - /* Building libsecp256k1 as a DLL. - * 1. If using Libtool, it defines DLL_EXPORT automatically. - * 2. In other cases, SECP256K1_DLL_EXPORT must be defined. */ -# define SECP256K1_API extern __declspec (dllexport) -# else - /* Building libsecp256k1 as a static library on Windows. - * No declspec is needed, and so we would want the non-Windows-specific - * logic below take care of this case. However, this may result in setting - * __attribute__ ((visibility("default"))), which is supposed to be a noop - * on Windows but may trigger warnings when compiling with -flto due to a - * bug in GCC, see - * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116478 . */ -# define SECP256K1_API extern -# endif - /* The user must define SECP256K1_STATIC when consuming libsecp256k1 as a static - * library on Windows. */ -# elif !defined(SECP256K1_STATIC) - /* Consuming libsecp256k1 as a DLL. */ -# define SECP256K1_API extern __declspec (dllimport) -# endif -#endif -#ifndef SECP256K1_API -/* All cases not captured by the Windows-specific logic. */ -# if defined(__GNUC__) && (__GNUC__ >= 4) && defined(SECP256K1_BUILD) - /* Building libsecp256k1 using GCC or compatible. */ -# define SECP256K1_API extern __attribute__ ((visibility ("default"))) -# else - /* Fall back to standard C's extern. */ -# define SECP256K1_API extern -# endif +#if !defined(SECP256K1_API) +# if defined(SECP256K1_BUILD) + /* On Windows, assume a shared library only if explicitly requested. + * 1. If using Libtool, it defines DLL_EXPORT automatically. + * 2. In other cases, SECP256K1_DLL_EXPORT must be defined. */ +# if defined(_WIN32) && (defined(SECP256K1_DLL_EXPORT) || defined(DLL_EXPORT)) + /* GCC for Windows (e.g., MinGW) accepts the __declspec syntax for + * MSVC compatibility. A __declspec declaration implies (but is not + * exactly equivalent to) __attribute__ ((visibility("default"))), + * and so we actually want __declspec even on GCC, see "Microsoft + * Windows Function Attributes" in the GCC manual and the + * recommendations in https://gcc.gnu.org/wiki/Visibility . */ +# define SECP256K1_API extern __declspec(dllexport) + /* Avoid __attribute__ ((visibility("default"))) on Windows to get rid + * of warnings when compiling with -flto due to a bug in GCC, see + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116478 . */ +# elif !defined(_WIN32) && defined (__GNUC__) && (__GNUC__ >= 4) +# define SECP256K1_API extern __attribute__ ((visibility("default"))) +# else +# define SECP256K1_API extern +# endif +# else + /* On Windows, SECP256K1_STATIC must be defined when consuming + * libsecp256k1 as a static library. Note that SECP256K1_STATIC is a + * "consumer-only" macro, and it has no meaning when building + * libsecp256k1. */ +# if defined(_WIN32) && !defined(SECP256K1_STATIC) +# define SECP256K1_API extern __declspec(dllimport) +# else +# define SECP256K1_API extern +# endif +# endif #endif /* Warning attributes From ce7923874f3f51dd87f396e0be655e2b25ad4629 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 2 Jul 2025 11:56:40 +0200 Subject: [PATCH 493/557] build: Add SECP256K1_NO_API_VISIBILITY_ATTRIBUTES --- include/secp256k1.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/secp256k1.h b/include/secp256k1.h index d67d964253..f55a6ab976 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -121,6 +121,25 @@ typedef int (*secp256k1_nonce_function)( #endif /* Symbol visibility. */ +#if !defined(SECP256K1_API) && defined(SECP256K1_NO_API_VISIBILITY_ATTRIBUTES) + /* The user has requested that we don't specify visibility attributes in + * the public API. + * + * Since all our non-API declarations use the static qualifier, this means + * that the user can use -fvisibility= to set the visibility of the + * API symbols. For instance, -fvisibility=hidden can be useful *even for + * the API symbols*, e.g., when building a static library which is linked + * into a shared library, and the latter should not re-export the + * libsecp256k1 API. + * + * While visibility is a concept that applies only to shared libraries, + * setting visibility will still make a difference when building a static + * library: the visibility settings will be stored in the static library, + * solely for the potential case that the static library will be linked into + * a shared library. In that case, the stored visibility settings will + * resurface and be honored for the shared library. */ +# define SECP256K1_API extern +#endif #if !defined(SECP256K1_API) # if defined(SECP256K1_BUILD) /* On Windows, assume a shared library only if explicitly requested. From c82d84bb86f9769a4f9d958f40e86cd99e071bc7 Mon Sep 17 00:00:00 2001 From: Cory Fields Date: Wed, 2 Jul 2025 15:18:06 +0000 Subject: [PATCH 494/557] build: add CMake option for disabling symbol visibility attributes Co-authored-by: Tim Ruffing --- CMakeLists.txt | 3 +++ src/CMakeLists.txt | 4 ++++ 2 files changed, 7 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index 26cc49b157..98c51ac1cc 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -42,6 +42,8 @@ endif() option(SECP256K1_INSTALL "Enable installation." ${PROJECT_IS_TOP_LEVEL}) +option(SECP256K1_ENABLE_API_VISIBILITY_ATTRIBUTES "Enable visibility attributes in the API." ON) + ## Modules # We declare all options before processing them, to make sure we can express @@ -312,6 +314,7 @@ else() set(cross_status "FALSE") endif() message("Cross compiling ....................... ${cross_status}") +message("API visibility attributes ............. ${SECP256K1_ENABLE_API_VISIBILITY_ATTRIBUTES}") message("Valgrind .............................. ${SECP256K1_VALGRIND}") get_directory_property(definitions COMPILE_DEFINITIONS) string(REPLACE ";" " " definitions "${definitions}") diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 8f1d2ee3ba..f9ede8b6cf 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -54,6 +54,10 @@ add_library(secp256k1_precomputed OBJECT EXCLUDE_FROM_ALL # from being exported. target_sources(secp256k1 PRIVATE secp256k1.c $) +if(NOT SECP256K1_ENABLE_API_VISIBILITY_ATTRIBUTES) + target_compile_definitions(secp256k1 PRIVATE SECP256K1_NO_API_VISIBILITY_ATTRIBUTES) +endif() + # Create a helper lib that parent projects can use to link secp256k1 into a # static lib. add_library(secp256k1_objs INTERFACE) From bf082221ff55be706e162f1a15e9df3247ef7e7b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 18 Jul 2025 17:37:09 +0100 Subject: [PATCH 495/557] cmake: Make `secp256k1_objs` inherit interface defines from `secp256k1` This change effectively adds `-DSECP256K1_STATIC` to usage requirements of `secp256k1_objs` on Windows, preventing LNK4217 linker warnings. --- src/CMakeLists.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 8f1d2ee3ba..7ec6045c41 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -86,7 +86,8 @@ target_include_directories(secp256k1 INTERFACE $>:${PROJECT_SOURCE_DIR}/include>> ) set_target_properties(secp256k1_objs PROPERTIES - INTERFACE_INCLUDE_DIRECTORIES "$" + INTERFACE_COMPILE_DEFINITIONS "$" + INTERFACE_INCLUDE_DIRECTORIES "$" ) # This emulates Libtool to make sure Libtool and CMake agree on the ABI version, From 983711cd6dcb21144d416321d679b25d2d641f7d Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 21 Jul 2025 14:44:57 +0200 Subject: [PATCH 496/557] musig/tests: Refactor vectors_signverify for improved readability --- src/modules/musig/tests_impl.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/modules/musig/tests_impl.h b/src/modules/musig/tests_impl.h index ce6ae1784d..e4c13cee4b 100644 --- a/src/modules/musig/tests_impl.h +++ b/src/modules/musig/tests_impl.h @@ -910,12 +910,14 @@ static void musig_test_vectors_signverify(void) { * the signing key does not belong to any pubkey. */ continue; } + expected = c->error != MUSIG_PUBKEY; CHECK(expected == musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL)); CHECK(expected || c->error == error); if (!expected) { continue; } + CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0]))); expected = c->error != MUSIG_AGGNONCE; CHECK(expected == secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonces[c->aggnonce_index])); @@ -924,9 +926,8 @@ static void musig_test_vectors_signverify(void) { } CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache)); - CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0]))); - musig_test_set_secnonce(&secnonce, vector->secnonces[c->secnonce_index], &pubkey); expected = c->error != MUSIG_SECNONCE; + musig_test_set_secnonce(&secnonce, vector->secnonces[c->secnonce_index], &pubkey); if (expected) { CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); } else { From 8d967a602b14c86d0f9e43a31fdfe76f39f32091 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 21 Jul 2025 14:47:57 +0200 Subject: [PATCH 497/557] musig/test: Remove dead code This avoids a compiler warning on clang-snapshot about &keypair being uninitialized. --- src/modules/musig/tests_impl.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/src/modules/musig/tests_impl.h b/src/modules/musig/tests_impl.h index e4c13cee4b..361a989f74 100644 --- a/src/modules/musig/tests_impl.h +++ b/src/modules/musig/tests_impl.h @@ -927,12 +927,9 @@ static void musig_test_vectors_signverify(void) { CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache)); expected = c->error != MUSIG_SECNONCE; + CHECK(!expected); musig_test_set_secnonce(&secnonce, vector->secnonces[c->secnonce_index], &pubkey); - if (expected) { - CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); - } else { - CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); - } + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session)); } for (i = 0; i < sizeof(vector->verify_fail_case)/sizeof(vector->verify_fail_case[0]); i++) { const struct musig_verify_fail_error_case *c = &vector->verify_fail_case[i]; From 40b4a0652078c797df3ceb66387b8cfe60e6dab8 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Wed, 16 Jul 2025 08:58:10 +0000 Subject: [PATCH 498/557] changelog: update Co-authored-by: Tim Ruffing --- CHANGELOG.md | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 12abd35720..9992545782 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,11 +7,27 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +#### Added + - CMake: Added `secp256k1_objs` interface library to allow parent projects to embed libsecp256k1 object files into their own static libraries. + - build: Added `SECP256K1_NO_API_VISIBILITY_ATTRIBUTES` preprocessor flag (CMake option: `SECP256K1_ENABLE_API_VISIBILITY_ATTRIBUTES`) that disables explicit "visibility" attributes for API symbols. Defining this macro enables the user to control the visibility of the API symbols via `-fvisibility=` when building libsecp256k1. (All non-API declarations will always have hidden visibility, even with `SECP256K1_ENABLE_API_VISIBILITY_ATTRIBUTES` defined.) For instance, `-fvisibility=hidden` can be useful even for the API symbols, e.g., when building a static libsecp256k1 which is linked into a shared library, and the latter should not re-export the libsecp256k1 API. + +#### Changed + - The pointers `secp256k1_context_static` and `secp256k1_context_no_precomp` to the constant context object are now const. + - Removed `SECP256K1_WARN_UNUSED_RESULT` attribute (defined as `__attribute__ ((__warn_unused_result__))`) from several API functions that always return 1. Compilers will no longer warn if the return value is unused. + - CMake: Building with CMake is no longer considered experimental. + - CMake: The minimum required CMake version was increased to 3.22. + - CMake: Shared libraries built with CMake on FreeBSD now create the full versioned filename and symlink chain, matching the behavior of autotools builds. + #### Removed - Removed previously deprecated function aliases `secp256k1_ec_privkey_negate`, `secp256k1_ec_privkey_tweak_add` and `secp256k1_ec_privkey_tweak_mul`. Use `secp256k1_ec_seckey_negate`, `secp256k1_ec_seckey_tweak_add` and `secp256k1_ec_seckey_tweak_mul` instead. +#### ABI Compatibility +The symbols `secp256k1_ec_privkey_negate`, `secp256k1_ec_privkey_tweak_add`, and `secp256k1_ec_privkey_tweak_mul` were removed. +The pointers `secp256k1_context_static` and `secp256k1_context_no_precomp` have been made const. +Otherwise, the library maintains backward compatibility with version 0.6.0. + ## [0.6.0] - 2024-11-04 #### Added From cde4130898e9b661695b74e8a8344a7201e224ed Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 21 Jul 2025 14:08:23 +0000 Subject: [PATCH 499/557] musig/tests: initialize keypair The keypair is unused in musig_partial_sign, but clang-snapshot gives a compiler warning anyway. --- src/modules/musig/tests_impl.h | 1 + 1 file changed, 1 insertion(+) diff --git a/src/modules/musig/tests_impl.h b/src/modules/musig/tests_impl.h index 361a989f74..4694c31a32 100644 --- a/src/modules/musig/tests_impl.h +++ b/src/modules/musig/tests_impl.h @@ -918,6 +918,7 @@ static void musig_test_vectors_signverify(void) { continue; } CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0]))); + CHECK(secp256k1_keypair_create(CTX, &keypair, vector->sk)); expected = c->error != MUSIG_AGGNONCE; CHECK(expected == secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonces[c->aggnonce_index])); From f67b0ac1a0ac1b8fa5d574cd0662231f071435fc Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 21 Jul 2025 16:35:16 +0200 Subject: [PATCH 500/557] ci: Don't hardcode ABI version --- .github/workflows/ci.yml | 3 ++- ci/ci.sh | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 805281c330..d5196c53bf 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -652,10 +652,11 @@ jobs: - name: Symbol check if: ${{ matrix.configuration.symbol_check }} + shell: bash run: | py -3 --version py -3 -m pip install lief - py -3 .\tools\symbol-check.py build\bin\RelWithDebInfo\libsecp256k1-5.dll + py -3 ./tools/symbol-check.py build/bin/RelWithDebInfo/libsecp256k1-*.dll - name: Check run: | diff --git a/ci/ci.sh b/ci/ci.sh index 3285ecc951..08e84efd4f 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -113,7 +113,7 @@ then case "$HOST" in *mingw*) ls -l .libs - python3 ./tools/symbol-check.py .libs/libsecp256k1-5.dll + python3 ./tools/symbol-check.py .libs/libsecp256k1-*.dll ;; *) python3 ./tools/symbol-check.py .libs/libsecp256k1.so From a3e742d9478c202cbe93e721567e0f1dea1c8bde Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Mon, 21 Jul 2025 16:21:31 +0200 Subject: [PATCH 501/557] release: Prepare for 0.7.0 --- CHANGELOG.md | 8 ++++---- CMakeLists.txt | 6 +++--- configure.ac | 10 +++++----- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 9992545782..3e9e720cf7 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,14 +5,14 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). -## [Unreleased] +## [0.7.0] - 2025-07-21 #### Added - CMake: Added `secp256k1_objs` interface library to allow parent projects to embed libsecp256k1 object files into their own static libraries. - build: Added `SECP256K1_NO_API_VISIBILITY_ATTRIBUTES` preprocessor flag (CMake option: `SECP256K1_ENABLE_API_VISIBILITY_ATTRIBUTES`) that disables explicit "visibility" attributes for API symbols. Defining this macro enables the user to control the visibility of the API symbols via `-fvisibility=` when building libsecp256k1. (All non-API declarations will always have hidden visibility, even with `SECP256K1_ENABLE_API_VISIBILITY_ATTRIBUTES` defined.) For instance, `-fvisibility=hidden` can be useful even for the API symbols, e.g., when building a static libsecp256k1 which is linked into a shared library, and the latter should not re-export the libsecp256k1 API. #### Changed - - The pointers `secp256k1_context_static` and `secp256k1_context_no_precomp` to the constant context object are now const. + - The pointers `secp256k1_context_static` and `secp256k1_context_no_precomp` to the constant context objects are now `const`. - Removed `SECP256K1_WARN_UNUSED_RESULT` attribute (defined as `__attribute__ ((__warn_unused_result__))`) from several API functions that always return 1. Compilers will no longer warn if the return value is unused. - CMake: Building with CMake is no longer considered experimental. - CMake: The minimum required CMake version was increased to 3.22. @@ -25,7 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 #### ABI Compatibility The symbols `secp256k1_ec_privkey_negate`, `secp256k1_ec_privkey_tweak_add`, and `secp256k1_ec_privkey_tweak_mul` were removed. -The pointers `secp256k1_context_static` and `secp256k1_context_no_precomp` have been made const. +The pointers `secp256k1_context_static` and `secp256k1_context_no_precomp` have been made `const`. Otherwise, the library maintains backward compatibility with version 0.6.0. ## [0.6.0] - 2024-11-04 @@ -185,7 +185,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. -[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.6.0...HEAD +[0.7.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.6.0...v0.7.0 [0.6.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.1...v0.6.0 [0.5.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...v0.5.1 [0.5.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.4.1...v0.5.0 diff --git a/CMakeLists.txt b/CMakeLists.txt index 98c51ac1cc..a34f42d2c9 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -7,7 +7,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.6.1 + VERSION 0.7.0 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -21,8 +21,8 @@ list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -set(${PROJECT_NAME}_LIB_VERSION_CURRENT 5) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) +set(${PROJECT_NAME}_LIB_VERSION_CURRENT 6) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) set(${PROJECT_NAME}_LIB_VERSION_AGE 0) #============================= diff --git a/configure.ac b/configure.ac index 406227fcd1..808aa79ebf 100644 --- a/configure.ac +++ b/configure.ac @@ -4,17 +4,17 @@ AC_PREREQ([2.60]) # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) -define(_PKG_VERSION_MINOR, 6) -define(_PKG_VERSION_PATCH, 1) -define(_PKG_VERSION_IS_RELEASE, false) +define(_PKG_VERSION_MINOR, 7) +define(_PKG_VERSION_PATCH, 0) +define(_PKG_VERSION_IS_RELEASE, true) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. -define(_LIB_VERSION_CURRENT, 5) -define(_LIB_VERSION_REVISION, 1) +define(_LIB_VERSION_CURRENT, 6) +define(_LIB_VERSION_REVISION, 0) define(_LIB_VERSION_AGE, 0) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 7ab8b0cc01dd30711a221969b194d3b7d870bc46 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 21 Jul 2025 17:55:16 +0000 Subject: [PATCH 502/557] release cleanup: bump version after 0.7.0 --- CHANGELOG.md | 3 +++ CMakeLists.txt | 4 ++-- configure.ac | 6 +++--- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 3e9e720cf7..53c787b38f 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [Unreleased] + ## [0.7.0] - 2025-07-21 #### Added @@ -185,6 +187,7 @@ This version was in fact never released. The number was given by the build system since the introduction of autotools in Jan 2014 (ea0fe5a5bf0c04f9cc955b2966b614f5f378c6f6). Therefore, this version number does not uniquely identify a set of source files. +[unreleased]: https://github.com/bitcoin-core/secp256k1/compare/v0.7.0...HEAD [0.7.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.6.0...v0.7.0 [0.6.0]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.1...v0.6.0 [0.5.1]: https://github.com/bitcoin-core/secp256k1/compare/v0.5.0...v0.5.1 diff --git a/CMakeLists.txt b/CMakeLists.txt index a34f42d2c9..25919fd5e6 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -7,7 +7,7 @@ project(libsecp256k1 # The package (a.k.a. release) version is based on semantic versioning 2.0.0 of # the API. All changes in experimental modules are treated as # backwards-compatible and therefore at most increase the minor version. - VERSION 0.7.0 + VERSION 0.7.1 DESCRIPTION "Optimized C library for ECDSA signatures and secret/public key operations on curve secp256k1." HOMEPAGE_URL "https://github.com/bitcoin-core/secp256k1" LANGUAGES C @@ -22,7 +22,7 @@ list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. set(${PROJECT_NAME}_LIB_VERSION_CURRENT 6) -set(${PROJECT_NAME}_LIB_VERSION_REVISION 0) +set(${PROJECT_NAME}_LIB_VERSION_REVISION 1) set(${PROJECT_NAME}_LIB_VERSION_AGE 0) #============================= diff --git a/configure.ac b/configure.ac index 808aa79ebf..ce24248fa3 100644 --- a/configure.ac +++ b/configure.ac @@ -5,8 +5,8 @@ AC_PREREQ([2.60]) # backwards-compatible and therefore at most increase the minor version. define(_PKG_VERSION_MAJOR, 0) define(_PKG_VERSION_MINOR, 7) -define(_PKG_VERSION_PATCH, 0) -define(_PKG_VERSION_IS_RELEASE, true) +define(_PKG_VERSION_PATCH, 1) +define(_PKG_VERSION_IS_RELEASE, false) # The library version is based on libtool versioning of the ABI. The set of # rules for updating the version can be found here: @@ -14,7 +14,7 @@ define(_PKG_VERSION_IS_RELEASE, true) # All changes in experimental modules are treated as if they don't affect the # interface and therefore only increase the revision. define(_LIB_VERSION_CURRENT, 6) -define(_LIB_VERSION_REVISION, 0) +define(_LIB_VERSION_REVISION, 1) define(_LIB_VERSION_AGE, 0) AC_INIT([libsecp256k1],m4_join([.], _PKG_VERSION_MAJOR, _PKG_VERSION_MINOR, _PKG_VERSION_PATCH)m4_if(_PKG_VERSION_IS_RELEASE, [true], [], [-dev]),[https://github.com/bitcoin-core/secp256k1/issues],[libsecp256k1],[https://github.com/bitcoin-core/secp256k1]) From 9ea54c69b7d99d6fedccc8a4b8f18c0a68742ff6 Mon Sep 17 00:00:00 2001 From: fanquake Date: Wed, 23 Jul 2025 14:11:58 +0100 Subject: [PATCH 503/557] tests: update Wycheproof files Pulls in relevant changes from https://github.com/C2SP/wycheproof/pull/150. --- src/wycheproof/WYCHEPROOF_COPYING | 4 ++-- .../ecdsa_secp256k1_sha256_bitcoin_test.json | 10 +++++----- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/src/wycheproof/WYCHEPROOF_COPYING b/src/wycheproof/WYCHEPROOF_COPYING index 269570434c..c6d0e6eeb2 100644 --- a/src/wycheproof/WYCHEPROOF_COPYING +++ b/src/wycheproof/WYCHEPROOF_COPYING @@ -1,7 +1,7 @@ * The file `ecdsa_secp256k1_sha256_bitcoin_test.json` in this directory comes from project Wycheproof with git commit - `df4e933efef449fc88af0c06e028d425d84a9495`, see - https://github.com/C2SP/wycheproof/blob/df4e933efef449fc88af0c06e028d425d84a9495/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json + `1f32ea7bb6cc5bd111cbd5507456b255dc8337c3`, see + https://github.com/C2SP/wycheproof/blob/1f32ea7bb6cc5bd111cbd5507456b255dc8337c3/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json * The file `ecdh_secp256k1_test.json` in this directory comes from project Wycheproof with git commit diff --git a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json index aa0cc8a425..350b0da09c 100644 --- a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json +++ b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json @@ -5,7 +5,7 @@ "numberOfTests" : 463, "header" : [ "Test vectors of type EcdsaBitcoinVerify are meant for the verification", - "of a ECDSA variant used for bitcoin, that add signature non-malleability." + "of a ECDSA variant used for Bitcoin, that add signature non-malleability." ], "notes" : { "ArithmeticError" : { @@ -47,7 +47,7 @@ "InvalidSignature" : { "bugType" : "AUTH_BYPASS", "description" : "The signature contains special case values such as r=0 and s=0. Buggy implementations may accept such values, if the implementation does not check boundaries and computes s^(-1) == 0.", - "effect" : "Accepting such signatures can have the effect that an adversary can forge signatures without even knowning the message to sign.", + "effect" : "Accepting such signatures can have the effect that an adversary can forge signatures without even knowing the message to sign.", "cves" : [ "CVE-2022-21449", "CVE-2021-43572", @@ -57,7 +57,7 @@ "InvalidTypesInSignature" : { "bugType" : "AUTH_BYPASS", "description" : "The signature contains invalid types. Dynamic typed languages sometime coerce such values of different types into integers. If an implementation is careless and has additional bugs, such as not checking integer boundaries then it may be possible that such signatures are accepted.", - "effect" : "Accepting such signatures can have the effect that an adversary can forge signatures without even knowning the message to sign.", + "effect" : "Accepting such signatures can have the effect that an adversary can forge signatures without even knowing the message to sign.", "cves" : [ "CVE-2022-21449" ] @@ -95,8 +95,8 @@ }, "SignatureMalleabilityBitcoin" : { "bugType" : "SIGNATURE_MALLEABILITY", - "description" : "\"BitCoins\"-curves are curves where signature malleability can be a serious issue. An implementation should only accept a signature s where s < n/2. If an implementation is not meant for uses cases that require signature malleability then this implementation should be tested with another set of test vectors.", - "effect" : "In bitcoin exchanges, it may be used to make a double deposits or double withdrawals", + "description" : "Signature malleability can be a serious issue in Bitcoin. An implementation should only accept a signature s where s < n/2. If an implementation is not meant for use cases that require signature malleability then this implementation should be tested with another set of test vectors.", + "effect" : "In Bitcoin exchanges, it may be used to make a double deposits or double withdrawals", "links" : [ "https://en.bitcoin.it/wiki/Transaction_malleability", "https://en.bitcoinwiki.org/wiki/Transaction_Malleability" From 5433648ca0d2e8fb6679acbdee74d2f40c7ef25a Mon Sep 17 00:00:00 2001 From: Adrien Ufferte Date: Sun, 15 Jun 2025 16:41:26 +0200 Subject: [PATCH 504/557] Fix typos and spellings --- src/ecmult_gen_impl.h | 2 +- src/tests.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 070a121308..16de638c79 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -213,7 +213,7 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 * but this would simply discard the bits that fall off at the bottom, * and thus, for example, bitdata could still have only two values if we * happen to shift by exactly 31 positions. We use a rotation instead, - * which ensures that bitdata doesn't loose entropy. This relies on the + * which ensures that bitdata doesn't lose entropy. This relies on the * rotation being atomic, i.e., the compiler emitting an actual rot * instruction. */ uint32_t bitdata = secp256k1_rotr32(recoded[bit_pos >> 5], bit_pos & 0x1f); diff --git a/src/tests.c b/src/tests.c index 52614401c0..0f7b0d4c4c 100644 --- a/src/tests.c +++ b/src/tests.c @@ -3904,7 +3904,7 @@ static void test_ge(void) { free(gej); } -static void test_intialized_inf(void) { +static void test_initialized_inf(void) { secp256k1_ge p; secp256k1_gej pj, npj, infj1, infj2, infj3; secp256k1_fe zinv; @@ -4030,7 +4030,7 @@ static void run_ge(void) { test_ge(); } test_add_neg_y_diff_x(); - test_intialized_inf(); + test_initialized_inf(); test_ge_bytes(); } From 7b07b229571d80c228f7719c4ffdaf48e397f1a0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 27 Jul 2025 15:35:58 +0100 Subject: [PATCH 505/557] cmake: Avoid contaminating parent project's cache with BUILD_SHARED_LIBS The CMake cache is global in scope. Therefore, setting the standard cache variable `BUILD_SHARED_LIBS` can inadvertently affect the behavior of a parent project. This change: 1. Sets the `BUILD_SHARED_LIBS` cache variable only when libsecp256k1 is the top-level project. 2. Removes the `SECP256K1_DISABLE_SHARED` cache variable. This enables parent projects that include libsecp256k1 as a subproject to rely solely on standard CMake variables for configuring the library type. --- CMakeLists.txt | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 25919fd5e6..11dc3f6e53 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -34,10 +34,8 @@ set(CMAKE_C_EXTENSIONS OFF) #============================= # Configurable options #============================= -option(BUILD_SHARED_LIBS "Build shared libraries." ON) -option(SECP256K1_DISABLE_SHARED "Disable shared library. Overrides BUILD_SHARED_LIBS." OFF) -if(SECP256K1_DISABLE_SHARED) - set(BUILD_SHARED_LIBS OFF) +if(libsecp256k1_IS_TOP_LEVEL) + option(BUILD_SHARED_LIBS "Build shared libraries." ON) endif() option(SECP256K1_INSTALL "Enable installation." ${PROJECT_IS_TOP_LEVEL}) From c25c3c8a885f2adac754c163e115bdd883c8772d Mon Sep 17 00:00:00 2001 From: josibake Date: Thu, 31 Jul 2025 14:25:31 +0100 Subject: [PATCH 506/557] test: update wycheproof test vectors Pull in updated test vectors. This update is done as a follow-up to #1711. --- src/wycheproof/WYCHEPROOF_COPYING | 4 ++-- src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/wycheproof/WYCHEPROOF_COPYING b/src/wycheproof/WYCHEPROOF_COPYING index c6d0e6eeb2..c9a4ef81f5 100644 --- a/src/wycheproof/WYCHEPROOF_COPYING +++ b/src/wycheproof/WYCHEPROOF_COPYING @@ -1,7 +1,7 @@ * The file `ecdsa_secp256k1_sha256_bitcoin_test.json` in this directory comes from project Wycheproof with git commit - `1f32ea7bb6cc5bd111cbd5507456b255dc8337c3`, see - https://github.com/C2SP/wycheproof/blob/1f32ea7bb6cc5bd111cbd5507456b255dc8337c3/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json + `7ae4532f417575ced2b1cbbabed81a7fecfaef5d`, see + https://github.com/C2SP/wycheproof/blob/7ae4532f417575ced2b1cbbabed81a7fecfaef5d/testvectors_v1/ecdsa_secp256k1_sha256_bitcoin_test.json * The file `ecdh_secp256k1_test.json` in this directory comes from project Wycheproof with git commit diff --git a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json index 350b0da09c..add468f59a 100644 --- a/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json +++ b/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json @@ -95,7 +95,7 @@ }, "SignatureMalleabilityBitcoin" : { "bugType" : "SIGNATURE_MALLEABILITY", - "description" : "Signature malleability can be a serious issue in Bitcoin. An implementation should only accept a signature s where s < n/2. If an implementation is not meant for use cases that require signature malleability then this implementation should be tested with another set of test vectors.", + "description" : "Signature malleability can be a serious issue in Bitcoin. An implementation should only accept a signature s where s < n/2. If an implementation is meant for use cases that tolerate signature malleability then this implementation should not be tested with this set of test vectors.", "effect" : "In Bitcoin exchanges, it may be used to make a double deposits or double withdrawals", "links" : [ "https://en.bitcoin.it/wiki/Transaction_malleability", From 24ba8ff168c30c7ad003e7e6bb4a4d2f947c9063 Mon Sep 17 00:00:00 2001 From: Maximilian Hubert <64627729+gap-editor@users.noreply.github.com> Date: Sat, 9 Aug 2025 23:51:04 +0200 Subject: [PATCH 507/557] chore(ci): Fix typo in Dockerfile comment --- ci/linux-debian.Dockerfile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 92ec80d2b1..8ced83f209 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -19,7 +19,7 @@ RUN dpkg --add-architecture i386 && \ dpkg --add-architecture arm64 && \ dpkg --add-architecture ppc64el -# dkpg-dev: to make pkg-config work in cross-builds +# dpkg-dev: to make pkg-config work in cross-builds # llvm: for llvm-symbolizer, which is used by clang's UBSan for symbolized stack traces RUN apt-get update && apt-get install --no-install-recommends -y \ git ca-certificates \ From a9e955d3ea25a83c413e54dc0f5c24c47fc8bc88 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sat, 29 Apr 2023 23:09:36 +0100 Subject: [PATCH 508/557] autotools, docs: Adjust help string for `--enable-coverage` option --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index ce24248fa3..2f156ddc25 100644 --- a/configure.ac +++ b/configure.ac @@ -144,7 +144,7 @@ AC_ARG_ENABLE(benchmark, [SECP_SET_DEFAULT([enable_benchmark], [yes], [yes])]) AC_ARG_ENABLE(coverage, - AS_HELP_STRING([--enable-coverage],[enable compiler flags to support kcov coverage analysis [default=no]]), [], + AS_HELP_STRING([--enable-coverage],[enable coverage analysis support [default=no]]), [], [SECP_SET_DEFAULT([enable_coverage], [no], [no])]) AC_ARG_ENABLE(tests, From 106a7cbf41bef1d4a529a9c214d7380ac88bee9b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 11 Aug 2025 11:29:23 +0100 Subject: [PATCH 509/557] doc: Exclude modules' `bench_impl.h` headers from coverage report --- CONTRIBUTING.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index 80890fb706..ccc1af6363 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -92,12 +92,12 @@ Run the tests: To create a report, `gcovr` is recommended, as it includes branch coverage reporting: - $ gcovr --exclude 'src/bench*' --print-summary + $ gcovr --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --print-summary To create a HTML report with coloured and annotated source code: $ mkdir -p coverage - $ gcovr --exclude 'src/bench*' --html --html-details -o coverage/coverage.html + $ gcovr --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --html --html-details -o coverage/coverage.html #### Exhaustive tests From 1aecce5936db9424cf526c565ef2501f21109b95 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 11 Aug 2025 11:35:53 +0100 Subject: [PATCH 510/557] doc: Add `--merge-mode-functions=separate` option to `gcovr` invocations Otherwise, commands fail with the error: ``` Stderr of gcov was >><< End of stderr Exception was >>Got function secp256k1_scalar_split_lambda on multiple lines: 67, 142. You can run gcovr with --merge-mode-functions=MERGE_MODE. The available values for MERGE_MODE are described in the documentation.<< End of stderr ``` --- CONTRIBUTING.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index ccc1af6363..9462b30d68 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -92,12 +92,12 @@ Run the tests: To create a report, `gcovr` is recommended, as it includes branch coverage reporting: - $ gcovr --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --print-summary + $ gcovr --merge-mode-functions=separate --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --print-summary To create a HTML report with coloured and annotated source code: $ mkdir -p coverage - $ gcovr --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --html --html-details -o coverage/coverage.html + $ gcovr --merge-mode-functions=separate --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --html --html-details -o coverage/coverage.html #### Exhaustive tests From 0458def51e18b7500dac8aec019b637dfade0667 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 11 Aug 2025 16:32:07 +0100 Subject: [PATCH 511/557] doc: Add `--gcov-ignore-parse-errors=all` option to `gcovr` invocations Otherwise, commands might fail due to bugs in the `gcov` tool. --- CONTRIBUTING.md | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index 9462b30d68..f00110862d 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -92,12 +92,14 @@ Run the tests: To create a report, `gcovr` is recommended, as it includes branch coverage reporting: - $ gcovr --merge-mode-functions=separate --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --print-summary + $ gcovr --gcov-ignore-parse-errors=all --merge-mode-functions=separate --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --print-summary To create a HTML report with coloured and annotated source code: $ mkdir -p coverage - $ gcovr --merge-mode-functions=separate --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --html --html-details -o coverage/coverage.html + $ gcovr --gcov-ignore-parse-errors=all --merge-mode-functions=separate --exclude 'src/bench*' --exclude 'src/modules/.*/bench_impl.h' --html --html-details -o coverage/coverage.html + +On `gcovr` >=8.3, `--gcov-ignore-parse-errors=all` can be replaced with `--gcov-suspicious-hits-threshold=140737488355330`. #### Exhaustive tests From 489a43d1bf7d886274dc24c0a544f08b7b064aec Mon Sep 17 00:00:00 2001 From: VolodymyrBg Date: Mon, 18 Aug 2025 12:19:08 +0000 Subject: [PATCH 512/557] docs: fix broken link to eprint cache.pdf paper --- src/ecmult_gen_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index 16de638c79..b943fe2ab8 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -242,7 +242,7 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 * (https://cryptojedi.org/peter/data/chesrump-20130822.pdf) and * "Cache Attacks and Countermeasures: the Case of AES", RSA 2006, * by Dag Arne Osvik, Adi Shamir, and Eran Tromer - * (https://www.tau.ac.il/~tromer/papers/cache.pdf) + * (https://eprint.iacr.org/2005/271.pdf) */ for (index = 0; index < COMB_POINTS; ++index) { secp256k1_ge_storage_cmov(&adds, &secp256k1_ecmult_gen_prec_table[block][index], index == abs); From 5153cf1c91b6967b3cb0adcd0b990a0cffb2a0b2 Mon Sep 17 00:00:00 2001 From: josibake Date: Fri, 15 Aug 2025 09:37:29 +0100 Subject: [PATCH 513/557] tests: refactor tagged hash tests Move the sha256_tag_test_internal function out of the musig module into tests.c. This makes it available to other modules wishing to verify tagged hashes without needing to duplicate the function. Change the function signature to expect a const unsigned char and update the tagged hash tests to use static const unsigned char character arrays (where necessary). Add a comment for each tag. This is done as a convenience for checking the strings against the protocol specifications, where the tags are normally specified as strings. Update tests in the ellswift and schnorrsig modules to use the sha256_tag_test_internal helper function. --- src/modules/ellswift/tests_impl.h | 14 ++++++------- src/modules/musig/tests_impl.h | 31 ++++++++++++++--------------- src/modules/schnorrsig/tests_impl.h | 14 ++++++------- src/tests.c | 7 +++++++ 4 files changed, 36 insertions(+), 30 deletions(-) diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index 3c314c9b50..b90fd0ab88 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -405,31 +405,31 @@ void run_ellswift_tests(void) { /* Test hash initializers. */ { - secp256k1_sha256 sha, sha_optimized; + secp256k1_sha256 sha_optimized; + /* "secp256k1_ellswift_encode" */ static const unsigned char encode_tag[] = {'s', 'e', 'c', 'p', '2', '5', '6', 'k', '1', '_', 'e', 'l', 'l', 's', 'w', 'i', 'f', 't', '_', 'e', 'n', 'c', 'o', 'd', 'e'}; + /* "secp256k1_ellswift_create" */ static const unsigned char create_tag[] = {'s', 'e', 'c', 'p', '2', '5', '6', 'k', '1', '_', 'e', 'l', 'l', 's', 'w', 'i', 'f', 't', '_', 'c', 'r', 'e', 'a', 't', 'e'}; + /* "bip324_ellswift_xonly_ecdh" */ static const unsigned char bip324_tag[] = {'b', 'i', 'p', '3', '2', '4', '_', 'e', 'l', 'l', 's', 'w', 'i', 'f', 't', '_', 'x', 'o', 'n', 'l', 'y', '_', 'e', 'c', 'd', 'h'}; /* Check that hash initialized by * secp256k1_ellswift_sha256_init_encode has the expected * state. */ - secp256k1_sha256_initialize_tagged(&sha, encode_tag, sizeof(encode_tag)); secp256k1_ellswift_sha256_init_encode(&sha_optimized); - test_sha256_eq(&sha, &sha_optimized); + test_sha256_tag_midstate(&sha_optimized, encode_tag, sizeof(encode_tag)); /* Check that hash initialized by * secp256k1_ellswift_sha256_init_create has the expected * state. */ - secp256k1_sha256_initialize_tagged(&sha, create_tag, sizeof(create_tag)); secp256k1_ellswift_sha256_init_create(&sha_optimized); - test_sha256_eq(&sha, &sha_optimized); + test_sha256_tag_midstate(&sha_optimized, create_tag, sizeof(create_tag)); /* Check that hash initialized by * secp256k1_ellswift_sha256_init_bip324 has the expected * state. */ - secp256k1_sha256_initialize_tagged(&sha, bip324_tag, sizeof(bip324_tag)); secp256k1_ellswift_sha256_init_bip324(&sha_optimized); - test_sha256_eq(&sha, &sha_optimized); + test_sha256_tag_midstate(&sha_optimized, bip324_tag, sizeof(bip324_tag)); } } diff --git a/src/modules/musig/tests_impl.h b/src/modules/musig/tests_impl.h index 4694c31a32..b57b26264a 100644 --- a/src/modules/musig/tests_impl.h +++ b/src/modules/musig/tests_impl.h @@ -548,40 +548,39 @@ static void musig_nonce_test(void) { } } -static void sha256_tag_test_internal(secp256k1_sha256 *sha_tagged, unsigned char *tag, size_t taglen) { - secp256k1_sha256 sha; - secp256k1_sha256_initialize_tagged(&sha, tag, taglen); - test_sha256_eq(&sha, sha_tagged); -} - /* Checks that the initialized tagged hashes have the expected * state. */ static void sha256_tag_test(void) { secp256k1_sha256 sha; { - char tag[] = "KeyAgg list"; + /* "KeyAgg list" */ + static const unsigned char tag[] = {'K', 'e', 'y', 'A', 'g', 'g', ' ', 'l', 'i', 's', 't'}; secp256k1_musig_keyagglist_sha256(&sha); - sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + test_sha256_tag_midstate(&sha, tag, sizeof(tag)); } { - char tag[] = "KeyAgg coefficient"; + /* "KeyAgg coefficient" */ + static const unsigned char tag[] = {'K', 'e', 'y', 'A', 'g', 'g', ' ', 'c', 'o', 'e', 'f', 'f', 'i', 'c', 'i', 'e', 'n', 't'}; secp256k1_musig_keyaggcoef_sha256(&sha); - sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + test_sha256_tag_midstate(&sha, tag, sizeof(tag)); } { - unsigned char tag[] = "MuSig/aux"; + /* "MuSig/aux" */ + static const unsigned char tag[] = { 'M', 'u', 'S', 'i', 'g', '/', 'a', 'u', 'x' }; secp256k1_nonce_function_musig_sha256_tagged_aux(&sha); - sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + test_sha256_tag_midstate(&sha, tag, sizeof(tag)); } { - unsigned char tag[] = "MuSig/nonce"; + /* "MuSig/nonce" */ + static const unsigned char tag[] = { 'M', 'u', 'S', 'i', 'g', '/', 'n', 'o', 'n', 'c', 'e' }; secp256k1_nonce_function_musig_sha256_tagged(&sha); - sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + test_sha256_tag_midstate(&sha, tag, sizeof(tag)); } { - unsigned char tag[] = "MuSig/noncecoef"; + /* "MuSig/noncecoef" */ + static const unsigned char tag[] = { 'M', 'u', 'S', 'i', 'g', '/', 'n', 'o', 'n', 'c', 'e', 'c', 'o', 'e', 'f' }; secp256k1_musig_compute_noncehash_sha256_tagged(&sha); - sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1); + test_sha256_tag_midstate(&sha, tag, sizeof(tag)); } } diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index 2d716a01f8..5abbeefe0b 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -21,11 +21,12 @@ static void nonce_function_bip340_bitflip(unsigned char **args, size_t n_flip, s } static void run_nonce_function_bip340_tests(void) { - unsigned char tag[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'n', 'o', 'n', 'c', 'e'}; - unsigned char aux_tag[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'a', 'u', 'x'}; + /* "BIP0340/nonce" */ + static const unsigned char tag[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'n', 'o', 'n', 'c', 'e'}; + /* "BIP0340/aux" */ + static const unsigned char aux_tag[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'a', 'u', 'x'}; unsigned char algo[] = {'B', 'I', 'P', '0', '3', '4', '0', '/', 'n', 'o', 'n', 'c', 'e'}; size_t algolen = sizeof(algo); - secp256k1_sha256 sha; secp256k1_sha256 sha_optimized; unsigned char nonce[32], nonce_z[32]; unsigned char msg[32]; @@ -39,16 +40,15 @@ static void run_nonce_function_bip340_tests(void) { /* Check that hash initialized by * secp256k1_nonce_function_bip340_sha256_tagged has the expected * state. */ - secp256k1_sha256_initialize_tagged(&sha, tag, sizeof(tag)); secp256k1_nonce_function_bip340_sha256_tagged(&sha_optimized); - test_sha256_eq(&sha, &sha_optimized); + test_sha256_tag_midstate(&sha_optimized, tag, sizeof(tag)); + /* Check that hash initialized by * secp256k1_nonce_function_bip340_sha256_tagged_aux has the expected * state. */ - secp256k1_sha256_initialize_tagged(&sha, aux_tag, sizeof(aux_tag)); secp256k1_nonce_function_bip340_sha256_tagged_aux(&sha_optimized); - test_sha256_eq(&sha, &sha_optimized); + test_sha256_tag_midstate(&sha_optimized, aux_tag, sizeof(aux_tag)); testrand256(msg); testrand256(key); diff --git a/src/tests.c b/src/tests.c index 0f7b0d4c4c..28bec5904c 100644 --- a/src/tests.c +++ b/src/tests.c @@ -609,6 +609,13 @@ static void test_sha256_eq(const secp256k1_sha256 *sha1, const secp256k1_sha256 CHECK(sha1->bytes == sha2->bytes); CHECK(secp256k1_memcmp_var(sha1->s, sha2->s, sizeof(sha1->s)) == 0); } +/* Convenience function for using test_sha256_eq to verify the correctness of a + * tagged hash midstate. This function is used by some module tests. */ +static void test_sha256_tag_midstate(secp256k1_sha256 *sha_tagged, const unsigned char *tag, size_t taglen) { + secp256k1_sha256 sha; + secp256k1_sha256_initialize_tagged(&sha, tag, taglen); + test_sha256_eq(&sha, sha_tagged); +} static void run_hmac_sha256_tests(void) { static const char *keys[6] = { From 7379a5bed317d7a17a5f0a5b16bc01a903c573d2 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 24 Aug 2025 11:11:07 +0100 Subject: [PATCH 514/557] doc: Recommend clang-cl when building on Windows --- README.md | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index f7a59b2b96..ee184dbe3e 100644 --- a/README.md +++ b/README.md @@ -135,13 +135,11 @@ To cross compile for Android with [NDK](https://developer.android.com/ndk/guides ### Building on Windows -To build on Windows with Visual Studio, a proper [generator](https://cmake.org/cmake/help/latest/manual/cmake-generators.7.html#visual-studio-generators) must be specified for a new build tree. - -The following example assumes using of Visual Studio 2022 and CMake v3.21+. +The following example assumes Visual Studio 2022. Using clang-cl is recommended. In "Developer Command Prompt for VS 2022": - >cmake -G "Visual Studio 17 2022" -A x64 -B build + >cmake -B build -T ClangCL >cmake --build build --config RelWithDebInfo Usage examples From 737912430df3a1743810ebdf3c28ce31479f4d84 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Sun, 24 Aug 2025 11:08:02 +0100 Subject: [PATCH 515/557] ci: Add more tests for clang-cl --- .github/workflows/ci.yml | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index a3108d6bb1..f6d3176ba6 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -604,8 +604,16 @@ jobs: cpp_flags: '/DSECP256K1_MSVC_MULH_TEST_OVERRIDE' - job_name: 'x86 (MSVC): Windows (VS 2022)' cmake_options: '-A Win32' - - job_name: 'x64 (MSVC): Windows (clang-cl)' - cmake_options: '-T ClangCL' + - job_name: 'x64 (clang-cl): Windows (VS 2022, shared)' + cmake_options: '-T ClangCL -DBUILD_SHARED_LIBS=ON' + symbol_check: 'true' + - job_name: 'x64 (clang-cl): Windows (VS 2022, static)' + cmake_options: '-T ClangCL -DBUILD_SHARED_LIBS=OFF' + - job_name: 'x64 (clang-cl): Windows (VS 2022, int128_struct)' + cmake_options: '-T ClangCL -DSECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY=int128_struct' + - job_name: 'x64 (clang-cl): Windows (VS 2022, int128_struct with __(u)mulh)' + cmake_options: '-T ClangCL -DSECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY=int128_struct' + cpp_flags: '/DSECP256K1_MSVC_MULH_TEST_OVERRIDE' steps: - name: Checkout From 960ba5f9c60c3fd454ad4160ce9131eb77d61d7e Mon Sep 17 00:00:00 2001 From: John Moffett Date: Mon, 1 Sep 2025 09:18:48 -0400 Subject: [PATCH 516/557] Use size_t instead of int for RFC6979 outlen copy If outlen is > INT_MAX, could trigger segfault or hang after copy int now = outlen. --- src/hash_impl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/hash_impl.h b/src/hash_impl.h index 956e0ea48b..1065acd643 100644 --- a/src/hash_impl.h +++ b/src/hash_impl.h @@ -265,7 +265,7 @@ static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 while (outlen > 0) { secp256k1_hmac_sha256 hmac; - int now = outlen; + size_t now = outlen; secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32); secp256k1_hmac_sha256_write(&hmac, rng->v, 32); secp256k1_hmac_sha256_finalize(&hmac, rng->v); From 325d65a8cfae6d4c34098709d0a9e942e4963d03 Mon Sep 17 00:00:00 2001 From: John Moffett Date: Tue, 2 Sep 2025 09:26:09 -0400 Subject: [PATCH 517/557] Rename and clear var containing k or -k buf currently holds k or -k and isn't cleared, so clear it and rename to nonce32 to clarify its sensitivity and match how it is named in the corresponding ECDSA sign_inner. --- src/modules/schnorrsig/main_impl.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 2ed7be677f..13d9244911 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -139,7 +139,7 @@ static int secp256k1_schnorrsig_sign_internal(const secp256k1_context* ctx, unsi secp256k1_gej rj; secp256k1_ge pk; secp256k1_ge r; - unsigned char buf[32] = { 0 }; + unsigned char nonce32[32] = { 0 }; unsigned char pk_buf[32]; unsigned char seckey[32]; int ret = 1; @@ -164,8 +164,8 @@ static int secp256k1_schnorrsig_sign_internal(const secp256k1_context* ctx, unsi secp256k1_scalar_get_b32(seckey, &sk); secp256k1_fe_get_b32(pk_buf, &pk.x); - ret &= !!noncefp(buf, msg, msglen, seckey, pk_buf, bip340_algo, sizeof(bip340_algo), ndata); - secp256k1_scalar_set_b32(&k, buf, NULL); + ret &= !!noncefp(nonce32, msg, msglen, seckey, pk_buf, bip340_algo, sizeof(bip340_algo), ndata); + secp256k1_scalar_set_b32(&k, nonce32, NULL); ret &= !secp256k1_scalar_is_zero(&k); secp256k1_scalar_cmov(&k, &secp256k1_scalar_one, !ret); @@ -191,6 +191,7 @@ static int secp256k1_schnorrsig_sign_internal(const secp256k1_context* ctx, unsi secp256k1_scalar_clear(&k); secp256k1_scalar_clear(&sk); secp256k1_memclear(seckey, sizeof(seckey)); + secp256k1_memclear(nonce32, sizeof(nonce32)); secp256k1_gej_clear(&rj); return ret; From 806de38bfc24b481c5858f1df011eb909208a674 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 5 Sep 2025 19:11:29 +0200 Subject: [PATCH 518/557] doc: mention ctx requirement for `_ellswift_create` (not secp256k1_context_static) --- include/secp256k1_ellswift.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/secp256k1_ellswift.h b/include/secp256k1_ellswift.h index 0d1293e94f..4cda5d5ca0 100644 --- a/include/secp256k1_ellswift.h +++ b/include/secp256k1_ellswift.h @@ -130,7 +130,7 @@ SECP256K1_API int secp256k1_ellswift_decode( * * Returns: 1: secret was valid, public key was stored. * 0: secret was invalid, try again. - * Args: ctx: pointer to a context object + * Args: ctx: pointer to a context object (not secp256k1_context_static) * Out: ell64: pointer to a 64-byte array to receive the ElligatorSwift * public key * In: seckey32: pointer to a 32-byte secret key From 7ebaa134a758946f703eaba02fe19cf5a0598490 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sun, 7 Sep 2025 23:39:13 +0200 Subject: [PATCH 519/557] check-abi: remove support for obsolete CMake library output location (src/libsecp256k1.so) The CMake library output location was changed from "src/" to "lib/" in PR #1553, supporting the old location shouldn't be necessary anymore. --- tools/check-abi.sh | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/tools/check-abi.sh b/tools/check-abi.sh index 601a64ba96..a3ca67a6c9 100755 --- a/tools/check-abi.sh +++ b/tools/check-abi.sh @@ -49,14 +49,7 @@ checkout_and_build() { -DSECP256K1_BUILD_CTIME_TESTS=OFF \ -DSECP256K1_BUILD_EXAMPLES=OFF cmake --build . -j "$(nproc)" - # FIXME: Just set LIBPATH to lib/libsecp256k1.so once version 0.6.0 is - # released. - if [ -f "src/libsecp256k1.so" ]; then - LIBPATH="src/libsecp256k1.so" - else - LIBPATH="lib/libsecp256k1.so" - fi - abi-dumper $LIBPATH -o ABI.dump -lver "$2" -public-headers ../include/ + abi-dumper lib/libsecp256k1.so -o ABI.dump -lver "$2" -public-headers ../include/ cd "$_orig_dir" } From 399b582a5f7422bac3b1707d34ffad80e072f796 Mon Sep 17 00:00:00 2001 From: John Moffett Date: Mon, 8 Sep 2025 12:21:48 -0400 Subject: [PATCH 520/557] Split memclear into two versions secp256k1_memclear has the side effect of undefining bytes for valgrind checks. In some cases, we may want to zero bytes but allow subsequent reads. So we split memclear into memclear_explicit, which makes no guarantees about the content of the buffer on return, and memzero_explicit, which guarantees zero value on return. Change the memset in partial_sign to use memzero_explicit. --- src/ecmult_gen_impl.h | 8 ++++---- src/field_impl.h | 2 +- src/group_impl.h | 4 ++-- src/hash_impl.h | 10 +++++----- src/modules/ecdh/main_impl.h | 4 ++-- src/modules/ellswift/main_impl.h | 2 +- src/modules/musig/session_impl.h | 8 ++++---- src/modules/schnorrsig/main_impl.h | 6 +++--- src/scalar_impl.h | 2 +- src/secp256k1.c | 4 ++-- src/util.h | 19 ++++++++++++++++--- 11 files changed, 41 insertions(+), 28 deletions(-) diff --git a/src/ecmult_gen_impl.h b/src/ecmult_gen_impl.h index b943fe2ab8..2159eed5e1 100644 --- a/src/ecmult_gen_impl.h +++ b/src/ecmult_gen_impl.h @@ -277,8 +277,8 @@ static void secp256k1_ecmult_gen(const secp256k1_ecmult_gen_context *ctx, secp25 /* Cleanup. */ secp256k1_fe_clear(&neg); secp256k1_ge_clear(&add); - secp256k1_memclear(&adds, sizeof(adds)); - secp256k1_memclear(&recoded, sizeof(recoded)); + secp256k1_memclear_explicit(&adds, sizeof(adds)); + secp256k1_memclear_explicit(&recoded, sizeof(recoded)); } /* Setup blinding values for secp256k1_ecmult_gen. */ @@ -310,7 +310,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const VERIFY_CHECK(seed32 != NULL); memcpy(keydata + 32, seed32, 32); secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, 64); - secp256k1_memclear(keydata, sizeof(keydata)); + secp256k1_memclear_explicit(keydata, sizeof(keydata)); /* Compute projective blinding factor (cannot be 0). */ secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32); @@ -331,7 +331,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const secp256k1_ge_set_gej(&ctx->ge_offset, &gb); /* Clean up. */ - secp256k1_memclear(nonce32, sizeof(nonce32)); + secp256k1_memclear_explicit(nonce32, sizeof(nonce32)); secp256k1_scalar_clear(&b); secp256k1_gej_clear(&gb); secp256k1_fe_clear(&f); diff --git a/src/field_impl.h b/src/field_impl.h index 896507a3a4..7aa7de431a 100644 --- a/src/field_impl.h +++ b/src/field_impl.h @@ -19,7 +19,7 @@ #endif SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe *a) { - secp256k1_memclear(a, sizeof(secp256k1_fe)); + secp256k1_memclear_explicit(a, sizeof(secp256k1_fe)); } SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b) { diff --git a/src/group_impl.h b/src/group_impl.h index b8f2395d93..81a24b9d5b 100644 --- a/src/group_impl.h +++ b/src/group_impl.h @@ -337,11 +337,11 @@ static void secp256k1_ge_set_infinity(secp256k1_ge *r) { } static void secp256k1_gej_clear(secp256k1_gej *r) { - secp256k1_memclear(r, sizeof(secp256k1_gej)); + secp256k1_memclear_explicit(r, sizeof(secp256k1_gej)); } static void secp256k1_ge_clear(secp256k1_ge *r) { - secp256k1_memclear(r, sizeof(secp256k1_ge)); + secp256k1_memclear_explicit(r, sizeof(secp256k1_ge)); } static int secp256k1_ge_set_xo_var(secp256k1_ge *r, const secp256k1_fe *x, int odd) { diff --git a/src/hash_impl.h b/src/hash_impl.h index 1065acd643..4341917773 100644 --- a/src/hash_impl.h +++ b/src/hash_impl.h @@ -172,7 +172,7 @@ static void secp256k1_sha256_initialize_tagged(secp256k1_sha256 *hash, const uns } static void secp256k1_sha256_clear(secp256k1_sha256 *hash) { - secp256k1_memclear(hash, sizeof(*hash)); + secp256k1_memclear_explicit(hash, sizeof(*hash)); } static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const unsigned char *key, size_t keylen) { @@ -200,7 +200,7 @@ static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const rkey[n] ^= 0x5c ^ 0x36; } secp256k1_sha256_write(&hash->inner, rkey, sizeof(rkey)); - secp256k1_memclear(rkey, sizeof(rkey)); + secp256k1_memclear_explicit(rkey, sizeof(rkey)); } static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256 *hash, const unsigned char *data, size_t size) { @@ -211,12 +211,12 @@ static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned unsigned char temp[32]; secp256k1_sha256_finalize(&hash->inner, temp); secp256k1_sha256_write(&hash->outer, temp, 32); - secp256k1_memclear(temp, sizeof(temp)); + secp256k1_memclear_explicit(temp, sizeof(temp)); secp256k1_sha256_finalize(&hash->outer, out32); } static void secp256k1_hmac_sha256_clear(secp256k1_hmac_sha256 *hash) { - secp256k1_memclear(hash, sizeof(*hash)); + secp256k1_memclear_explicit(hash, sizeof(*hash)); } static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen) { @@ -285,7 +285,7 @@ static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256 } static void secp256k1_rfc6979_hmac_sha256_clear(secp256k1_rfc6979_hmac_sha256 *rng) { - secp256k1_memclear(rng, sizeof(*rng)); + secp256k1_memclear_explicit(rng, sizeof(*rng)); } #undef Round diff --git a/src/modules/ecdh/main_impl.h b/src/modules/ecdh/main_impl.h index 842b5359e3..9f2dfdd56a 100644 --- a/src/modules/ecdh/main_impl.h +++ b/src/modules/ecdh/main_impl.h @@ -62,8 +62,8 @@ int secp256k1_ecdh(const secp256k1_context* ctx, unsigned char *output, const se ret = hashfp(output, x, y, data); - secp256k1_memclear(x, sizeof(x)); - secp256k1_memclear(y, sizeof(y)); + secp256k1_memclear_explicit(x, sizeof(x)); + secp256k1_memclear_explicit(y, sizeof(y)); secp256k1_scalar_clear(&s); secp256k1_ge_clear(&pt); secp256k1_gej_clear(&res); diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index 745a969139..0d13f73422 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -582,7 +582,7 @@ int secp256k1_ellswift_xdh(const secp256k1_context *ctx, unsigned char *output, /* Invoke hasher */ ret = hashfp(output, sx, ell_a64, ell_b64, data); - secp256k1_memclear(sx, sizeof(sx)); + secp256k1_memclear_explicit(sx, sizeof(sx)); secp256k1_fe_clear(&px); secp256k1_scalar_clear(&s); diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index d8dcd00c95..2c8778b3c0 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -385,10 +385,10 @@ static void secp256k1_nonce_function_musig(secp256k1_scalar *k, const unsigned c secp256k1_scalar_set_b32(&k[i], buf, NULL); /* Attempt to erase secret data */ - secp256k1_memclear(buf, sizeof(buf)); + secp256k1_memclear_explicit(buf, sizeof(buf)); secp256k1_sha256_clear(&sha_tmp); } - secp256k1_memclear(rand, sizeof(rand)); + secp256k1_memclear_explicit(rand, sizeof(rand)); secp256k1_sha256_clear(&sha); } @@ -518,7 +518,7 @@ int secp256k1_musig_nonce_gen_counter(const secp256k1_context* ctx, secp256k1_mu if (!secp256k1_musig_nonce_gen_internal(ctx, secnonce, pubnonce, buf, seckey, &pubkey, msg32, keyagg_cache, extra_input32)) { return 0; } - secp256k1_memclear(seckey, sizeof(seckey)); + secp256k1_memclear_explicit(seckey, sizeof(seckey)); return 1; } @@ -679,7 +679,7 @@ int secp256k1_musig_partial_sign(const secp256k1_context* ctx, secp256k1_musig_p ret = secp256k1_musig_secnonce_load(ctx, k, &pk, secnonce); /* Set nonce to zero to avoid nonce reuse. This will cause subsequent calls * of this function to fail */ - memset(secnonce, 0, sizeof(*secnonce)); + secp256k1_memzero_explicit(secnonce, sizeof(*secnonce)); if (!ret) { secp256k1_musig_partial_sign_clear(&sk, k); return 0; diff --git a/src/modules/schnorrsig/main_impl.h b/src/modules/schnorrsig/main_impl.h index 13d9244911..b410b19eca 100644 --- a/src/modules/schnorrsig/main_impl.h +++ b/src/modules/schnorrsig/main_impl.h @@ -94,7 +94,7 @@ static int nonce_function_bip340(unsigned char *nonce32, const unsigned char *ms secp256k1_sha256_write(&sha, msg, msglen); secp256k1_sha256_finalize(&sha, nonce32); secp256k1_sha256_clear(&sha); - secp256k1_memclear(masked_key, sizeof(masked_key)); + secp256k1_memclear_explicit(masked_key, sizeof(masked_key)); return 1; } @@ -190,8 +190,8 @@ static int secp256k1_schnorrsig_sign_internal(const secp256k1_context* ctx, unsi secp256k1_memczero(sig64, 64, !ret); secp256k1_scalar_clear(&k); secp256k1_scalar_clear(&sk); - secp256k1_memclear(seckey, sizeof(seckey)); - secp256k1_memclear(nonce32, sizeof(nonce32)); + secp256k1_memclear_explicit(seckey, sizeof(seckey)); + secp256k1_memclear_explicit(nonce32, sizeof(nonce32)); secp256k1_gej_clear(&rj); return ret; diff --git a/src/scalar_impl.h b/src/scalar_impl.h index 0232a8c223..9965c2bab9 100644 --- a/src/scalar_impl.h +++ b/src/scalar_impl.h @@ -28,7 +28,7 @@ static const secp256k1_scalar secp256k1_scalar_one = SECP256K1_SCALAR_CONST(0, 0 static const secp256k1_scalar secp256k1_scalar_zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0); SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar *r) { - secp256k1_memclear(r, sizeof(secp256k1_scalar)); + secp256k1_memclear_explicit(r, sizeof(secp256k1_scalar)); } static int secp256k1_scalar_set_b32_seckey(secp256k1_scalar *r, const unsigned char *bin) { diff --git a/src/secp256k1.c b/src/secp256k1.c index 0915af7797..26336a45cc 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -499,7 +499,7 @@ static int nonce_function_rfc6979(unsigned char *nonce32, const unsigned char *m } secp256k1_rfc6979_hmac_sha256_finalize(&rng); - secp256k1_memclear(keydata, sizeof(keydata)); + secp256k1_memclear_explicit(keydata, sizeof(keydata)); secp256k1_rfc6979_hmac_sha256_clear(&rng); return 1; } @@ -550,7 +550,7 @@ static int secp256k1_ecdsa_sign_inner(const secp256k1_context* ctx, secp256k1_sc * seckey. As a result is_sec_valid is included in ret only after ret was * used as a branching variable. */ ret &= is_sec_valid; - secp256k1_memclear(nonce32, sizeof(nonce32)); + secp256k1_memclear_explicit(nonce32, sizeof(nonce32)); secp256k1_scalar_clear(&msg); secp256k1_scalar_clear(&non); secp256k1_scalar_clear(&sec); diff --git a/src/util.h b/src/util.h index 5f29f4076c..94e0837dab 100644 --- a/src/util.h +++ b/src/util.h @@ -219,8 +219,8 @@ static SECP256K1_INLINE void secp256k1_memczero(void *s, size_t len, int flag) { } } -/* Cleanses memory to prevent leaking sensitive info. Won't be optimized out. */ -static SECP256K1_INLINE void secp256k1_memclear(void *ptr, size_t len) { +/* Zeroes memory to prevent leaking sensitive info. Won't be optimized out. */ +static SECP256K1_INLINE void secp256k1_memzero_explicit(void *ptr, size_t len) { #if defined(_MSC_VER) /* SecureZeroMemory is guaranteed not to be optimized out by MSVC. */ SecureZeroMemory(ptr, len); @@ -242,6 +242,19 @@ static SECP256K1_INLINE void secp256k1_memclear(void *ptr, size_t len) { void *(*volatile const volatile_memset)(void *, int, size_t) = memset; volatile_memset(ptr, 0, len); #endif +} + +/* Cleanses memory to prevent leaking sensitive info. Won't be optimized out. + * The state of the memory after this call is unspecified so callers must not + * make any assumptions about its contents. + * + * In VERIFY builds, it has the side effect of marking the memory as undefined. + * This helps to detect use-after-clear bugs where code incorrectly reads from + * cleansed memory during testing. + */ +static SECP256K1_INLINE void secp256k1_memclear_explicit(void *ptr, size_t len) { + /* The current implementation zeroes, but callers must not rely on this */ + secp256k1_memzero_explicit(ptr, len); #ifdef VERIFY SECP256K1_CHECKMEM_UNDEFINE(ptr, len); #endif @@ -277,7 +290,7 @@ static SECP256K1_INLINE int secp256k1_is_zero_array(const unsigned char *s, size } ret = (acc == 0); /* acc may contain secret values. Try to explicitly clear it. */ - secp256k1_memclear(&acc, sizeof(acc)); + secp256k1_memclear_explicit(&acc, sizeof(acc)); return ret; } From 0c91c5604130a56bb1628fd12c56edf60de966b0 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Fri, 12 Sep 2025 03:53:06 +0200 Subject: [PATCH 521/557] test: introduce group order byte-array constant for deduplication --- src/modules/ecdh/tests_impl.h | 8 ++------ src/tests.c | 22 +++------------------- src/testutil.h | 8 ++++++++ 3 files changed, 13 insertions(+), 25 deletions(-) diff --git a/src/modules/ecdh/tests_impl.h b/src/modules/ecdh/tests_impl.h index 6888f18c64..8265131105 100644 --- a/src/modules/ecdh/tests_impl.h +++ b/src/modules/ecdh/tests_impl.h @@ -90,12 +90,7 @@ static void test_ecdh_generator_basepoint(void) { static void test_bad_scalar(void) { unsigned char s_zero[32] = { 0 }; - unsigned char s_overflow[32] = { - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, - 0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b, - 0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41 - }; + unsigned char s_overflow[32] = { 0 }; unsigned char s_rand[32] = { 0 }; unsigned char output[32]; secp256k1_scalar rand; @@ -107,6 +102,7 @@ static void test_bad_scalar(void) { CHECK(secp256k1_ec_pubkey_create(CTX, &point, s_rand) == 1); /* Try to multiply it by bad values */ + memcpy(s_overflow, secp256k1_group_order_bytes, 32); CHECK(secp256k1_ecdh(CTX, output, &point, s_zero, NULL, NULL) == 0); CHECK(secp256k1_ecdh(CTX, output, &point, s_overflow, NULL, NULL) == 0); /* ...and a good one */ diff --git a/src/tests.c b/src/tests.c index 28bec5904c..cb3b3c4248 100644 --- a/src/tests.c +++ b/src/tests.c @@ -6036,12 +6036,7 @@ static void run_ec_pubkey_parse_test(void) { } static void run_eckey_edge_case_test(void) { - const unsigned char orderc[32] = { - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, - 0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b, - 0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41 - }; + const unsigned char *orderc = secp256k1_group_order_bytes; const unsigned char zeros[sizeof(secp256k1_pubkey)] = {0x00}; unsigned char ctmp[33]; unsigned char ctmp2[33]; @@ -6355,13 +6350,7 @@ static int nonce_function_test_retry(unsigned char *nonce32, const unsigned char return 1; } if (counter < 5) { - static const unsigned char order[] = { - 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, - 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE, - 0xBA,0xAE,0xDC,0xE6,0xAF,0x48,0xA0,0x3B, - 0xBF,0xD2,0x5E,0x8C,0xD0,0x36,0x41,0x41 - }; - memcpy(nonce32, order, 32); + memcpy(nonce32, secp256k1_group_order_bytes, 32); if (counter == 4) { nonce32[31]++; } @@ -7379,12 +7368,7 @@ static void test_ecdsa_edge_cases(void) { /* Privkey export where pubkey is the point at infinity. */ { unsigned char privkey[300]; - unsigned char seckey[32] = { - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, - 0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b, - 0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41, - }; + const unsigned char *seckey = secp256k1_group_order_bytes; size_t outlen = 300; CHECK(!ec_privkey_export_der(CTX, privkey, &outlen, seckey, 0)); outlen = 300; diff --git a/src/testutil.h b/src/testutil.h index 64b3bb41c0..480f6a1a0c 100644 --- a/src/testutil.h +++ b/src/testutil.h @@ -11,6 +11,14 @@ #include "testrand.h" #include "util.h" +/* group order of the secp256k1 curve in 32-byte big endian representation */ +static const unsigned char secp256k1_group_order_bytes[32] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, + 0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b, + 0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41 +}; + static void testutil_random_fe(secp256k1_fe *x) { unsigned char bin[32]; do { From 9cce7038635afa7e94c434f1571a8e435350cb51 Mon Sep 17 00:00:00 2001 From: furszy Date: Tue, 9 Sep 2025 15:35:47 -0400 Subject: [PATCH 522/557] refactor: move 'gettime_i64()' to tests_common.h Relocate the clock time getter to tests_common.h to make it easily reusable across test programs. This will be useful for the upcoming unit test framework. Context - why not placing it inside testutil.h?: The bench program links against the production-compiled library, not its own compiled version. Therefore, `gettime_i64()` cannot be moved to testutil.h, because testutil.h calls `secp256k1_pubkey_save()`, which exists only in the internal secp256k1.c and not in the public API. --- Makefile.am | 1 + src/bench.h | 22 +--------------------- src/tests_common.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 44 insertions(+), 21 deletions(-) create mode 100644 src/tests_common.h diff --git a/Makefile.am b/Makefile.am index d511853b05..4cc97babc9 100644 --- a/Makefile.am +++ b/Makefile.am @@ -45,6 +45,7 @@ noinst_HEADERS += src/precomputed_ecmult.h noinst_HEADERS += src/precomputed_ecmult_gen.h noinst_HEADERS += src/assumptions.h noinst_HEADERS += src/checkmem.h +noinst_HEADERS += src/tests_common.h noinst_HEADERS += src/testutil.h noinst_HEADERS += src/util.h noinst_HEADERS += src/util_local_visibility.h diff --git a/src/bench.h b/src/bench.h index 232fb35fc0..4e8e961b67 100644 --- a/src/bench.h +++ b/src/bench.h @@ -12,27 +12,7 @@ #include #include -#if (defined(_MSC_VER) && _MSC_VER >= 1900) -# include -#else -# include -#endif - -static int64_t gettime_i64(void) { -#if (defined(_MSC_VER) && _MSC_VER >= 1900) - /* C11 way to get wallclock time */ - struct timespec tv; - if (!timespec_get(&tv, TIME_UTC)) { - fputs("timespec_get failed!", stderr); - exit(EXIT_FAILURE); - } - return (int64_t)tv.tv_nsec / 1000 + (int64_t)tv.tv_sec * 1000000LL; -#else - struct timeval tv; - gettimeofday(&tv, NULL); - return (int64_t)tv.tv_usec + (int64_t)tv.tv_sec * 1000000LL; -#endif -} +#include "tests_common.h" #define FP_EXP (6) #define FP_MULT (1000000LL) diff --git a/src/tests_common.h b/src/tests_common.h new file mode 100644 index 0000000000..a341633bbc --- /dev/null +++ b/src/tests_common.h @@ -0,0 +1,42 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_TESTS_COMMON_H +#define SECP256K1_TESTS_COMMON_H + +/*********************************************************************** + * Test Support Utilities + * + * This file provides general-purpose functions for tests and benchmark + * programs. Unlike testutil.h, this file is not linked to the library, + * allowing each program to choose whether to run against the production + * API or access library internals directly. + ***********************************************************************/ + +#include + +#if (defined(_MSC_VER) && _MSC_VER >= 1900) +# include +#else +# include +#endif + +static int64_t gettime_i64(void) { +#if (defined(_MSC_VER) && _MSC_VER >= 1900) + /* C11 way to get wallclock time */ + struct timespec tv; + if (!timespec_get(&tv, TIME_UTC)) { + fputs("timespec_get failed!", stderr); + exit(EXIT_FAILURE); + } + return (int64_t)tv.tv_nsec / 1000 + (int64_t)tv.tv_sec * 1000000LL; +#else + struct timeval tv; + gettimeofday(&tv, NULL); + return (int64_t)tv.tv_usec + (int64_t)tv.tv_sec * 1000000LL; +#endif +} + +#endif /* SECP256K1_TESTS_COMMON_H */ From 7321bdf27bdc6a68875c61510c1a0d9ec4b0b7e3 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Mon, 15 Sep 2025 01:51:33 +0200 Subject: [PATCH 523/557] doc: clarify API doc of `secp256k1_ecdsa_recover` return value Co-authored-by: Tim Ruffing --- include/secp256k1_recovery.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/include/secp256k1_recovery.h b/include/secp256k1_recovery.h index 93a2e4ccbd..2430f99397 100644 --- a/include/secp256k1_recovery.h +++ b/include/secp256k1_recovery.h @@ -92,7 +92,17 @@ SECP256K1_API int secp256k1_ecdsa_sign_recoverable( /** Recover an ECDSA public key from a signature. * - * Returns: 1: public key successfully recovered (which guarantees a correct signature). + * Successful public key recovery guarantees that the signature, after normalization, + * passes `secp256k1_ecdsa_verify`. Thus, explicit verification is not necessary. + * + * However, a recoverable signature that successfully passes `secp256k1_ecdsa_recover`, + * when converted to a non-recoverable signature (using + * `secp256k1_ecdsa_recoverable_signature_convert`), is not guaranteed to be + * normalized and thus not guaranteed to pass `secp256k1_ecdsa_verify`. If a + * normalized signature is required, call `secp256k1_ecdsa_signature_normalize` + * after `secp256k1_ecdsa_recoverable_signature_convert`. + * + * Returns: 1: public key successfully recovered * 0: otherwise. * Args: ctx: pointer to a context object. * Out: pubkey: pointer to the recovered public key. From dfe284ed2d24ab44705ca5ecd8f3f7e1b8e4c278 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Tue, 16 Sep 2025 23:01:06 +0200 Subject: [PATCH 524/557] bench: improve context creation in ECDH benchmark Calling `secp256k1_context_create` with `SECP256K1_FLAGS_TYPE_CONTEXT` seems to be not strictly API-compliant, as the only allowed (non-deprecated) value is `SECP256K1_CONTEXT_NONE`, even if the former happens to map to the latter currently. Fix this by not dynamically creating a context in the first place and switch to using the static context, as it is sufficient for this benchmark and presumably matches what the "no capabilities" comment intended back then. --- src/modules/ecdh/bench_impl.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/src/modules/ecdh/bench_impl.h b/src/modules/ecdh/bench_impl.h index c23aaa94d1..8924e1fabe 100644 --- a/src/modules/ecdh/bench_impl.h +++ b/src/modules/ecdh/bench_impl.h @@ -10,7 +10,7 @@ #include "../../../include/secp256k1_ecdh.h" typedef struct { - secp256k1_context *ctx; + const secp256k1_context *ctx; secp256k1_pubkey point; unsigned char scalar[32]; } bench_ecdh_data; @@ -46,12 +46,9 @@ static void run_ecdh_bench(int iters, int argc, char** argv) { bench_ecdh_data data; int d = argc == 1; - /* create a context with no capabilities */ - data.ctx = secp256k1_context_create(SECP256K1_FLAGS_TYPE_CONTEXT); + data.ctx = secp256k1_context_static; if (d || have_flag(argc, argv, "ecdh")) run_benchmark("ecdh", bench_ecdh, bench_ecdh_setup, NULL, &data, 10, iters); - - secp256k1_context_destroy(data.ctx); } #endif /* SECP256K1_MODULE_ECDH_BENCH_H */ From ab560078aa9c7e977fade4ceae4a20ef8e5be025 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 17 Sep 2025 23:19:12 +0100 Subject: [PATCH 525/557] build: Fix warnings in x86_64 assembly check This change fixes: - `-Wuninitialized` in both Autotools and CMake; - `-Wreturn-type` in CMake only. --- build-aux/m4/bitcoin_secp.m4 | 2 +- cmake/CheckX86_64Assembly.cmake | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/build-aux/m4/bitcoin_secp.m4 b/build-aux/m4/bitcoin_secp.m4 index 048267fa6e..1428d4d9b2 100644 --- a/build-aux/m4/bitcoin_secp.m4 +++ b/build-aux/m4/bitcoin_secp.m4 @@ -3,7 +3,7 @@ AC_DEFUN([SECP_X86_64_ASM_CHECK],[ AC_MSG_CHECKING(for x86_64 assembly availability) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include ]],[[ - uint64_t a = 11, tmp; + uint64_t a = 11, tmp = 0; __asm__ __volatile__("movq \@S|@0x100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx"); ]])], [has_x86_64_asm=yes], [has_x86_64_asm=no]) AC_MSG_RESULT([$has_x86_64_asm]) diff --git a/cmake/CheckX86_64Assembly.cmake b/cmake/CheckX86_64Assembly.cmake index ae82cd476e..ca18919e06 100644 --- a/cmake/CheckX86_64Assembly.cmake +++ b/cmake/CheckX86_64Assembly.cmake @@ -4,10 +4,11 @@ function(check_x86_64_assembly) check_c_source_compiles(" #include - int main() + int main(void) { - uint64_t a = 11, tmp; + uint64_t a = 11, tmp = 0; __asm__ __volatile__(\"movq $0x100000000,%1; mulq %%rsi\" : \"+a\"(a) : \"S\"(tmp) : \"cc\", \"%rdx\"); + return 0; } " HAVE_X86_64_ASM) set(HAVE_X86_64_ASM ${HAVE_X86_64_ASM} PARENT_SCOPE) From 895f53d1cf9719f34b5248afe6aab33deeb8e26c Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 20 Aug 2025 09:57:10 +0200 Subject: [PATCH 526/557] docs: Clarify that callback can be called more than once --- include/secp256k1.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index f55a6ab976..ae31ff7084 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -340,9 +340,9 @@ SECP256K1_API void secp256k1_context_destroy( * * On the other hand, during debug stage, one would want to be informed about * such mistakes, and the default (crashing) may be inadvisable. - * When this callback is triggered, the API function called is guaranteed not - * to cause a crash, though its return value and output arguments are - * undefined. + * Should this callback return instead of crashing, the return value and output + * arguments of the API function call are undefined. Moreover, the same API + * call may trigger the callback again in this case. * * When this function has not been called (or called with fn==NULL), then the * default handler will be used. The library provides a default handler which From 4d90585feaa52711133deb0c5a3cb32fca73d042 Mon Sep 17 00:00:00 2001 From: Tim Ruffing Date: Wed, 20 Aug 2025 09:59:54 +0200 Subject: [PATCH 527/557] docs: Improve API docs of _context_set_illegal_callback --- include/secp256k1.h | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) diff --git a/include/secp256k1.h b/include/secp256k1.h index ae31ff7084..b0a13b144d 100644 --- a/include/secp256k1.h +++ b/include/secp256k1.h @@ -261,7 +261,7 @@ SECP256K1_DEPRECATED("Use secp256k1_context_static instead"); * secp256k1_context_create (or secp256k1_context_preallocated_create), which will * take care of performing the self tests. * - * If the tests fail, this function will call the default error handler to abort the + * If the tests fail, this function will call the default error callback to abort the * program (see secp256k1_context_set_error_callback). */ SECP256K1_API void secp256k1_selftest(void); @@ -334,36 +334,37 @@ SECP256K1_API void secp256k1_context_destroy( * an API call. It will only trigger for violations that are mentioned * explicitly in the header. * - * The philosophy is that these shouldn't be dealt with through a - * specific return value, as calling code should not have branches to deal with - * the case that this code itself is broken. + * The philosophy is that these shouldn't be dealt with through a specific + * return value, as calling code should not have branches to deal with the case + * that this code itself is broken. * * On the other hand, during debug stage, one would want to be informed about - * such mistakes, and the default (crashing) may be inadvisable. - * Should this callback return instead of crashing, the return value and output - * arguments of the API function call are undefined. Moreover, the same API - * call may trigger the callback again in this case. - * - * When this function has not been called (or called with fn==NULL), then the - * default handler will be used. The library provides a default handler which - * writes the message to stderr and calls abort. This default handler can be + * such mistakes, and the default (crashing) may be inadvisable. Should this + * callback return instead of crashing, the return value and output arguments + * of the API function call are undefined. Moreover, the same API call may + * trigger the callback again in this case. + * + * When this function has not been called (or called with fun==NULL), then the + * default callback will be used. The library provides a default callback which + * writes the message to stderr and calls abort. This default callback can be * replaced at link time if the preprocessor macro * USE_EXTERNAL_DEFAULT_CALLBACKS is defined, which is the case if the build * has been configured with --enable-external-default-callbacks. Then the * following two symbols must be provided to link against: * - void secp256k1_default_illegal_callback_fn(const char *message, void *data); * - void secp256k1_default_error_callback_fn(const char *message, void *data); - * The library can call these default handlers even before a proper callback data + * The library may call a default callback even before a proper callback data * pointer could have been set using secp256k1_context_set_illegal_callback or * secp256k1_context_set_error_callback, e.g., when the creation of a context - * fails. In this case, the corresponding default handler will be called with + * fails. In this case, the corresponding default callback will be called with * the data pointer argument set to NULL. * * Args: ctx: pointer to a context object. * In: fun: pointer to a function to call when an illegal argument is * passed to the API, taking a message and an opaque pointer. - * (NULL restores the default handler.) - * data: the opaque pointer to pass to fun above, must be NULL for the default handler. + * (NULL restores the default callback.) + * data: the opaque pointer to pass to fun above, must be NULL for the + * default callback. * * See also secp256k1_context_set_error_callback. */ @@ -380,8 +381,8 @@ SECP256K1_API void secp256k1_context_set_illegal_callback( * to abort the program. * * This can only trigger in case of a hardware failure, miscompilation, - * memory corruption, serious bug in the library, or other error would can - * otherwise result in undefined behaviour. It will not trigger due to mere + * memory corruption, serious bug in the library, or other error that would + * result in undefined behaviour. It will not trigger due to mere * incorrect usage of the API (see secp256k1_context_set_illegal_callback * for that). After this callback returns, anything may happen, including * crashing. @@ -389,9 +390,10 @@ SECP256K1_API void secp256k1_context_set_illegal_callback( * Args: ctx: pointer to a context object. * In: fun: pointer to a function to call when an internal error occurs, * taking a message and an opaque pointer (NULL restores the - * default handler, see secp256k1_context_set_illegal_callback + * default callback, see secp256k1_context_set_illegal_callback * for details). - * data: the opaque pointer to pass to fun above, must be NULL for the default handler. + * data: the opaque pointer to pass to fun above, must be NULL for the + * default callback. * * See also secp256k1_context_set_illegal_callback. */ From 48789dafc2a866bbc639184f0387637c0decb8c5 Mon Sep 17 00:00:00 2001 From: furszy Date: Wed, 3 Sep 2025 10:59:37 -0400 Subject: [PATCH 528/557] test: introduce (mini) unit test framework Lightweight unit testing framework, providing a structured way to define, execute, and report tests. It includes a central test registry, a flexible command-line argument parser of the form "--key=value" / "-k=value" / "-key=value" (facilitating future framework extensions), ability to run tests in parallel and accumulated test time logging reports. So far the supported command-line args are: - "--jobs=" or "-j=" to specify the number of parallel workers. - "--seed=" to specify the RNG seed (random if not set). - "--iterations=" or "-i=" to specify the number of iterations. Compatibility Note: To stay compatible with previous versions, the framework also supports the two original positional arguments: the iterations count and the RNG seed (in that order). --- Makefile.am | 4 +- configure.ac | 8 ++ src/CMakeLists.txt | 14 +- src/tests.c | 329 ++++++++++++++++++++++++------------------- src/unit_test.c | 342 +++++++++++++++++++++++++++++++++++++++++++++ src/unit_test.h | 120 ++++++++++++++++ 6 files changed, 674 insertions(+), 143 deletions(-) create mode 100644 src/unit_test.c create mode 100644 src/unit_test.h diff --git a/Makefile.am b/Makefile.am index 4cc97babc9..dc798575e3 100644 --- a/Makefile.am +++ b/Makefile.am @@ -47,6 +47,8 @@ noinst_HEADERS += src/assumptions.h noinst_HEADERS += src/checkmem.h noinst_HEADERS += src/tests_common.h noinst_HEADERS += src/testutil.h +noinst_HEADERS += src/unit_test.h +noinst_HEADERS += src/unit_test.c noinst_HEADERS += src/util.h noinst_HEADERS += src/util_local_visibility.h noinst_HEADERS += src/int128.h @@ -121,7 +123,7 @@ if USE_TESTS TESTS += noverify_tests noinst_PROGRAMS += noverify_tests noverify_tests_SOURCES = src/tests.c -noverify_tests_CPPFLAGS = $(SECP_CONFIG_DEFINES) +noverify_tests_CPPFLAGS = $(SECP_CONFIG_DEFINES) $(TEST_DEFINES) noverify_tests_LDADD = $(COMMON_LIB) $(PRECOMPUTED_LIB) noverify_tests_LDFLAGS = -static if !ENABLE_COVERAGE diff --git a/configure.ac b/configure.ac index 2f156ddc25..6028ee288d 100644 --- a/configure.ac +++ b/configure.ac @@ -443,6 +443,14 @@ if test x"$enable_experimental" = x"no"; then fi fi +# Check for concurrency support (tests only) +if test "x$enable_tests" != x"no"; then + AC_CHECK_HEADERS([sys/types.h sys/wait.h unistd.h]) + AS_IF([test "x$ac_cv_header_sys_types_h" = xyes && test "x$ac_cv_header_sys_wait_h" = xyes && + test "x$ac_cv_header_unistd_h" = xyes], [TEST_DEFINES="-DSUPPORTS_CONCURRENCY=1"], TEST_DEFINES="") + AC_SUBST(TEST_DEFINES) +fi + ### ### Generate output ### diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index fa3b2903eb..ecbbbbe8e9 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -134,15 +134,27 @@ if(SECP256K1_BUILD_BENCHMARK) endif() if(SECP256K1_BUILD_TESTS) + include(CheckIncludeFile) + check_include_file(sys/types.h HAVE_SYS_TYPES_H) + check_include_file(sys/wait.h HAVE_SYS_WAIT_H) + check_include_file(unistd.h HAVE_UNISTD_H) + + set(TEST_DEFINITIONS "") + if(HAVE_SYS_TYPES_H AND HAVE_SYS_WAIT_H AND HAVE_UNISTD_H) + list(APPEND TEST_DEFINITIONS SUPPORTS_CONCURRENCY=1) + endif() + add_executable(noverify_tests tests.c) target_link_libraries(noverify_tests secp256k1_precomputed secp256k1_asm) + target_compile_definitions(noverify_tests PRIVATE ${TEST_DEFINITIONS}) add_test(NAME secp256k1_noverify_tests COMMAND noverify_tests) if(NOT CMAKE_BUILD_TYPE STREQUAL "Coverage") add_executable(tests tests.c) - target_compile_definitions(tests PRIVATE VERIFY) + target_compile_definitions(tests PRIVATE VERIFY ${TEST_DEFINITIONS}) target_link_libraries(tests secp256k1_precomputed secp256k1_asm) add_test(NAME secp256k1_tests COMMAND tests) endif() + unset(TEST_DEFINITIONS) endif() if(SECP256K1_BUILD_EXHAUSTIVE_TESTS) diff --git a/src/tests.c b/src/tests.c index 28bec5904c..efcdbdc8b8 100644 --- a/src/tests.c +++ b/src/tests.c @@ -25,6 +25,8 @@ #include "checkmem.h" #include "testutil.h" #include "util.h" +#include "unit_test.h" +#include "unit_test.c" #include "../contrib/lax_der_parsing.c" #include "../contrib/lax_der_privatekey_parsing.c" @@ -37,7 +39,6 @@ #define CONDITIONAL_TEST(cnt, nam) if (COUNT < (cnt)) { printf("Skipping %s (iteration count too low)\n", nam); } else -static int COUNT = 16; static secp256k1_context *CTX = NULL; static secp256k1_context *STATIC_CTX = NULL; @@ -227,6 +228,12 @@ static void run_static_context_tests(int use_prealloc) { } } +static void run_all_static_context_tests(void) +{ + run_static_context_tests(0); + run_static_context_tests(1); +} + static void run_proper_context_tests(int use_prealloc) { int32_t dummy = 0; secp256k1_context *my_ctx, *my_ctx_fresh; @@ -349,6 +356,12 @@ static void run_proper_context_tests(int use_prealloc) { secp256k1_context_preallocated_destroy(NULL); } +static void run_all_proper_context_tests(void) +{ + run_proper_context_tests(0); + run_proper_context_tests(1); +} + static void run_scratch_tests(void) { const size_t adj_alloc = ((500 + ALIGNMENT - 1) / ALIGNMENT) * ALIGNMENT; @@ -7666,179 +7679,213 @@ static void run_cmov_tests(void) { ge_storage_cmov_test(); } -int main(int argc, char **argv) { - /* Disable buffering for stdout to improve reliability of getting - * diagnostic information. Happens right at the start of main because - * setbuf must be used before any other operation on the stream. */ - setbuf(stdout, NULL); - /* Also disable buffering for stderr because it's not guaranteed that it's - * unbuffered on all systems. */ - setbuf(stderr, NULL); - - /* find iteration count */ - if (argc > 1) { - COUNT = strtol(argv[1], NULL, 0); - } else { - const char* env = getenv("SECP256K1_TEST_ITERS"); - if (env && strlen(env) > 0) { - COUNT = strtol(env, NULL, 0); - } - } - if (COUNT <= 0) { - fputs("An iteration count of 0 or less is not allowed.\n", stderr); - return EXIT_FAILURE; - } - printf("test count = %i\n", COUNT); - - /* run test RNG tests (must run before we really initialize the test RNG) */ - run_xoshiro256pp_tests(); +/* --------------------------------------------------------- */ +/* Test Registry */ +/* --------------------------------------------------------- */ - /* find random seed */ - testrand_init(argc > 2 ? argv[2] : NULL); +/* --- Special test cases that must run before RNG initialization --- */ +static const struct tf_test_entry tests_no_rng[] = { + CASE(xoshiro256pp_tests), +}; +static const struct tf_test_module registry_modules_no_rng = MAKE_TEST_MODULE(no_rng); + +/* --- Standard test cases start here --- */ +static const struct tf_test_entry tests_general[] = { + CASE(selftest_tests), + CASE(all_proper_context_tests), + CASE(all_static_context_tests), + CASE(deprecated_context_flags_test), + CASE(scratch_tests), +}; - /*** Setup test environment ***/ +static const struct tf_test_entry tests_integer[] = { +#ifdef SECP256K1_WIDEMUL_INT128 + CASE(int128_tests), +#endif + CASE(ctz_tests), + CASE(modinv_tests), + CASE(inverse_tests), +}; - /* Create a global context available to all tests */ - CTX = secp256k1_context_create(SECP256K1_CONTEXT_NONE); - /* Randomize the context only with probability 15/16 - to make sure we test without context randomization from time to time. - TODO Reconsider this when recalibrating the tests. */ - if (testrand_bits(4)) { - unsigned char rand32[32]; - testrand256(rand32); - CHECK(secp256k1_context_randomize(CTX, rand32)); - } - /* Make a writable copy of secp256k1_context_static in order to test the effect of API functions - that write to the context. The API does not support cloning the static context, so we use - memcpy instead. The user is not supposed to copy a context but we should still ensure that - the API functions handle copies of the static context gracefully. */ - STATIC_CTX = malloc(sizeof(*secp256k1_context_static)); - CHECK(STATIC_CTX != NULL); - memcpy(STATIC_CTX, secp256k1_context_static, sizeof(secp256k1_context)); - CHECK(!secp256k1_context_is_proper(STATIC_CTX)); +static const struct tf_test_entry tests_hash[] = { + CASE(sha256_known_output_tests), + CASE(sha256_counter_tests), + CASE(hmac_sha256_tests), + CASE(rfc6979_hmac_sha256_tests), + CASE(tagged_sha256_tests), +}; - /*** Run actual tests ***/ +static const struct tf_test_entry tests_scalar[] = { + CASE(scalar_tests), +}; - /* selftest tests */ - run_selftest_tests(); +static const struct tf_test_entry tests_field[] = { + CASE(field_half), + CASE(field_misc), + CASE(field_convert), + CASE(field_be32_overflow), + CASE(fe_mul), + CASE(sqr), + CASE(sqrt), +}; - /* context tests */ - run_proper_context_tests(0); run_proper_context_tests(1); - run_static_context_tests(0); run_static_context_tests(1); - run_deprecated_context_flags_test(); +static const struct tf_test_entry tests_group[] = { + CASE(ge), + CASE(gej), + CASE(group_decompress), +}; - /* scratch tests */ - run_scratch_tests(); +static const struct tf_test_entry tests_ecmult[] = { + CASE(ecmult_pre_g), + CASE(wnaf), + CASE(point_times_order), + CASE(ecmult_near_split_bound), + CASE(ecmult_chain), + CASE(ecmult_constants), + CASE(ecmult_gen_blind), + CASE(ecmult_const_tests), + CASE(ecmult_multi_tests), + CASE(ec_combine), +}; - /* integer arithmetic tests */ -#ifdef SECP256K1_WIDEMUL_INT128 - run_int128_tests(); -#endif - run_ctz_tests(); - run_modinv_tests(); - run_inverse_tests(); - - /* sorting tests */ - run_hsort_tests(); - - /* hash tests */ - run_sha256_known_output_tests(); - run_sha256_counter_tests(); - run_hmac_sha256_tests(); - run_rfc6979_hmac_sha256_tests(); - run_tagged_sha256_tests(); - - /* scalar tests */ - run_scalar_tests(); - - /* field tests */ - run_field_half(); - run_field_misc(); - run_field_convert(); - run_field_be32_overflow(); - run_fe_mul(); - run_sqr(); - run_sqrt(); - - /* group tests */ - run_ge(); - run_gej(); - run_group_decompress(); - - /* ecmult tests */ - run_ecmult_pre_g(); - run_wnaf(); - run_point_times_order(); - run_ecmult_near_split_bound(); - run_ecmult_chain(); - run_ecmult_constants(); - run_ecmult_gen_blind(); - run_ecmult_const_tests(); - run_ecmult_multi_tests(); - run_ec_combine(); - - /* endomorphism tests */ - run_endomorphism_tests(); - - /* EC point parser test */ - run_ec_pubkey_parse_test(); - - /* EC key edge cases */ - run_eckey_edge_case_test(); - - /* EC key arithmetic test */ - run_eckey_negate_test(); +static const struct tf_test_entry tests_ec[] = { + CASE(endomorphism_tests), + CASE(ec_pubkey_parse_test), + CASE(eckey_edge_case_test), + CASE(eckey_negate_test), +}; #ifdef ENABLE_MODULE_ECDH - /* ecdh tests */ - run_ecdh_tests(); +static const struct tf_test_entry tests_ecdh[] = { + CASE(ecdh_tests), +}; #endif - /* ecdsa tests */ - run_ec_illegal_argument_tests(); - run_pubkey_comparison(); - run_pubkey_sort(); - run_random_pubkeys(); - run_ecdsa_der_parse(); - run_ecdsa_sign_verify(); - run_ecdsa_end_to_end(); - run_ecdsa_edge_cases(); - run_ecdsa_wycheproof(); +static const struct tf_test_entry tests_ecdsa[] = { + CASE(ec_illegal_argument_tests), + CASE(pubkey_comparison), + CASE(pubkey_sort), + CASE(random_pubkeys), + CASE(ecdsa_der_parse), + CASE(ecdsa_sign_verify), + CASE(ecdsa_end_to_end), + CASE(ecdsa_edge_cases), + CASE(ecdsa_wycheproof), +}; #ifdef ENABLE_MODULE_RECOVERY +static const struct tf_test_entry tests_recovery[] = { /* ECDSA pubkey recovery tests */ - run_recovery_tests(); + CASE(recovery_tests), +}; #endif #ifdef ENABLE_MODULE_EXTRAKEYS - run_extrakeys_tests(); +static const struct tf_test_entry tests_extrakeys[] = { + CASE(extrakeys_tests), +}; #endif #ifdef ENABLE_MODULE_SCHNORRSIG - run_schnorrsig_tests(); +static const struct tf_test_entry tests_schnorrsig[] = { + CASE(schnorrsig_tests), +}; #endif #ifdef ENABLE_MODULE_MUSIG - run_musig_tests(); +static const struct tf_test_entry tests_musig[] = { + CASE(musig_tests), +}; #endif #ifdef ENABLE_MODULE_ELLSWIFT - run_ellswift_tests(); +static const struct tf_test_entry tests_ellswift[] = { + CASE(ellswift_tests), +}; #endif - /* util tests */ - run_secp256k1_memczero_test(); - run_secp256k1_is_zero_array_test(); - run_secp256k1_byteorder_tests(); +static const struct tf_test_entry tests_utils[] = { + CASE(hsort_tests), + CASE(secp256k1_memczero_test), + CASE(secp256k1_is_zero_array_test), + CASE(secp256k1_byteorder_tests), + CASE(cmov_tests), +}; - run_cmov_tests(); +/* Register test modules */ +static const struct tf_test_module registry_modules[] = { + MAKE_TEST_MODULE(general), + MAKE_TEST_MODULE(integer), + MAKE_TEST_MODULE(hash), + MAKE_TEST_MODULE(scalar), + MAKE_TEST_MODULE(field), + MAKE_TEST_MODULE(group), + MAKE_TEST_MODULE(ecmult), + MAKE_TEST_MODULE(ec), +#ifdef ENABLE_MODULE_ECDH + MAKE_TEST_MODULE(ecdh), +#endif + MAKE_TEST_MODULE(ecdsa), +#ifdef ENABLE_MODULE_RECOVERY + MAKE_TEST_MODULE(recovery), +#endif +#ifdef ENABLE_MODULE_EXTRAKEYS + MAKE_TEST_MODULE(extrakeys), +#endif +#ifdef ENABLE_MODULE_SCHNORRSIG + MAKE_TEST_MODULE(schnorrsig), +#endif +#ifdef ENABLE_MODULE_MUSIG + MAKE_TEST_MODULE(musig), +#endif +#ifdef ENABLE_MODULE_ELLSWIFT + MAKE_TEST_MODULE(ellswift), +#endif + MAKE_TEST_MODULE(utils), +}; - /*** Tear down test environment ***/ +/* Setup test environment */ +static int setup(void) { + /* Create a global context available to all tests */ + CTX = secp256k1_context_create(SECP256K1_CONTEXT_NONE); + /* Randomize the context only with probability 15/16 + to make sure we test without context randomization from time to time. + TODO Reconsider this when recalibrating the tests. */ + if (testrand_bits(4)) { + unsigned char rand32[32]; + testrand256(rand32); + CHECK(secp256k1_context_randomize(CTX, rand32)); + } + /* Make a writable copy of secp256k1_context_static in order to test the effect of API functions + that write to the context. The API does not support cloning the static context, so we use + memcpy instead. The user is not supposed to copy a context but we should still ensure that + the API functions handle copies of the static context gracefully. */ + STATIC_CTX = malloc(sizeof(*secp256k1_context_static)); + CHECK(STATIC_CTX != NULL); + memcpy(STATIC_CTX, secp256k1_context_static, sizeof(secp256k1_context)); + CHECK(!secp256k1_context_is_proper(STATIC_CTX)); + return 0; +} + +/* Shutdown test environment */ +static int teardown(void) { free(STATIC_CTX); secp256k1_context_destroy(CTX); + return 0; +} - testrand_finish(); +int main(int argc, char **argv) { + struct tf_framework tf = {0}; + tf.registry_modules = registry_modules; + tf.num_modules = sizeof(registry_modules) / sizeof(registry_modules[0]); + tf.registry_no_rng = ®istry_modules_no_rng; - printf("no problems found\n"); - return EXIT_SUCCESS; + /* Add context creation/destruction functions */ + tf.fn_setup = setup; + tf.fn_teardown = teardown; + + /* Init and run framework */ + if (tf_init(&tf, argc, argv) != 0) return EXIT_FAILURE; + return tf_run(&tf); } + diff --git a/src/unit_test.c b/src/unit_test.c new file mode 100644 index 0000000000..914594bc13 --- /dev/null +++ b/src/unit_test.c @@ -0,0 +1,342 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#include +#include +#include + +#if defined(SUPPORTS_CONCURRENCY) +#include +#include +#include +#endif + +#include "unit_test.h" +#include "testrand.h" +#include "tests_common.h" + +#define UNUSED(x) (void)(x) + +/* Number of times certain tests will run */ +int COUNT = 16; + +static int parse_jobs_count(const char* key, const char* value, struct tf_framework* tf); +static int parse_iterations(const char* key, const char* value, struct tf_framework* tf); +static int parse_seed(const char* key, const char* value, struct tf_framework* tf); + +/* Mapping table: key -> handler */ +typedef int (*ArgHandler)(const char* key, const char* value, struct tf_framework* tf); +struct ArgMap { + const char* key; + ArgHandler handler; +}; + +/* + * Main entry point for handling command-line arguments. + * + * Developers should extend this map whenever new command-line + * options are introduced. Each new argument should be validated, + * converted to the appropriate type, and stored in 'tf->args' struct. + */ +static struct ArgMap arg_map[] = { + { "j", parse_jobs_count }, { "jobs", parse_jobs_count }, + { "i", parse_iterations }, { "iterations", parse_iterations }, + { "seed", parse_seed }, + { NULL, NULL } /* sentinel */ +}; + +/* Display options that are not printed elsewhere */ +static void print_args(const struct tf_args* args) { + printf("iterations = %d\n", COUNT); + printf("jobs = %d. %s execution.\n", args->num_processes, args->num_processes > 1 ? "Parallel" : "Sequential"); +} + +/* Main entry point for reading environment variables */ +static int read_env(struct tf_framework* tf) { + const char* env_iter = getenv("SECP256K1_TEST_ITERS"); + if (env_iter && strlen(env_iter) > 0) { + return parse_iterations("i", env_iter, tf); + } + return 0; +} + +static int parse_arg(const char* key, const char* value, struct tf_framework* tf) { + int i; + for (i = 0; arg_map[i].key != NULL; i++) { + if (strcmp(key, arg_map[i].key) == 0) { + return arg_map[i].handler(key, value, tf); + } + } + /* Unknown key: report just so typos don't silently pass. */ + fprintf(stderr, "Unknown argument '-%s=%s'\n", key, value); + return -1; +} + +static int parse_jobs_count(const char* key, const char* value, struct tf_framework* tf) { + char* ptr_val; + long val = strtol(value, &ptr_val, 10); /* base 10 */ + if (*ptr_val != '\0') { + fprintf(stderr, "Invalid number for -%s=%s\n", key, value); + return -1; + } + if (val < 0 || val > MAX_SUBPROCESSES) { + fprintf(stderr, "Arg '-%s' out of range: '%ld'. Range: 0..%d\n", key, val, MAX_SUBPROCESSES); + return -1; + } + tf->args.num_processes = (int) val; + return 0; +} + +static int parse_iterations(const char* key, const char* value, struct tf_framework* tf) { + UNUSED(key); UNUSED(tf); + if (!value) return 0; + COUNT = (int) strtol(value, NULL, 0); + if (COUNT <= 0) { + fputs("An iteration count of 0 or less is not allowed.\n", stderr); + return -1; + } + return 0; +} + +static int parse_seed(const char* key, const char* value, struct tf_framework* tf) { + UNUSED(key); + tf->args.custom_seed = (!value || strcmp(value, "NULL") == 0) ? NULL : value; + return 0; +} + +/* Strip up to two leading dashes */ +static const char* normalize_key(const char* arg, const char** err_msg) { + const char* key; + if (!arg || arg[0] != '-') { + *err_msg = "missing initial dash"; + return NULL; + } + /* single-dash short option */ + if (arg[1] != '-') return arg + 1; + + /* double-dash checks now */ + if (arg[2] == '\0') { + *err_msg = "missing option name after double dash"; + return NULL; + } + + if (arg[2] == '-') { + *err_msg = "too many leading dashes"; + return NULL; + } + + key = arg + 2; + if (key[1] == '\0') { + *err_msg = "short option cannot use double dash"; + return NULL; + } + return key; +} + +/* Read args: all must be in the form -key=value, --key=value or -key=value */ +static int read_args(int argc, char** argv, int start, struct tf_framework* tf) { + int i; + const char* key; + const char* value; + char* eq; + const char* err_msg = "unknown error"; + for (i = start; i < argc; i++) { + char* raw_arg = argv[i]; + if (!raw_arg || raw_arg[0] != '-') { + fprintf(stderr, "Invalid arg '%s': must start with '-'\n", raw_arg ? raw_arg : "(null)"); + return -1; + } + + key = normalize_key(raw_arg, &err_msg); + if (!key || *key == '\0') { + fprintf(stderr, "Invalid arg '%s': %s. Must be -k=value or --key=value\n", raw_arg, err_msg); + return -1; + } + + eq = strchr(raw_arg, '='); + if (!eq || eq == raw_arg + 1) { + fprintf(stderr, "Invalid arg '%s': must be -k=value or --key=value\n", raw_arg); + return -1; + } + + *eq = '\0'; /* split key and value */ + value = eq + 1; + if (!value || *value == '\0') { /* value is empty */ + fprintf(stderr, "Invalid arg '%s': value cannot be empty\n", raw_arg); + return -1; + } + + if (parse_arg(key, value, tf) != 0) return -1; + } + return 0; +} + +static void run_test(const struct tf_test_entry* t) { + printf("Running %s..\n", t->name); + t->func(); + printf("%s PASSED\n", t->name); +} + +/* Process tests in sequential order */ +static int run_sequential(struct tf_framework* tf) { + tf_test_ref ref; + const struct tf_test_module* mdl; + for (ref.group = 0; ref.group < tf->num_modules; ref.group++) { + mdl = &tf->registry_modules[ref.group]; + for (ref.idx = 0; ref.idx < mdl->size; ref.idx++) { + run_test(&mdl->data[ref.idx]); + } + } + return EXIT_SUCCESS; +} + +#if defined(SUPPORTS_CONCURRENCY) +/* Process tests in parallel */ +static int run_concurrent(struct tf_framework* tf) { + /* Sub-processes info */ + pid_t workers[MAX_SUBPROCESSES]; + int pipefd[2]; + int status = EXIT_SUCCESS; + int it; /* loop iterator */ + tf_test_ref ref; /* test index */ + + if (pipe(pipefd) != 0) { + perror("Error during pipe setup"); + return EXIT_FAILURE; + } + + /* Launch worker processes */ + for (it = 0; it < tf->args.num_processes; it++) { + pid_t pid = fork(); + if (pid < 0) { + perror("Error during process fork"); + return EXIT_FAILURE; + } + if (pid == 0) { + /* Child worker: read jobs from the shared pipe */ + close(pipefd[1]); /* children never write */ + while (read(pipefd[0], &ref, sizeof(ref)) == sizeof(ref)) { + run_test(&tf->registry_modules[ref.group].data[ref.idx]); + } + _exit(EXIT_SUCCESS); /* finish child process */ + } else { + /* Parent: save worker pid */ + workers[it] = pid; + } + } + + /* Parent: write all tasks into the pipe */ + close(pipefd[0]); /* close read end */ + for (ref.group = 0; ref.group < tf->num_modules; ref.group++) { + const struct tf_test_module* mdl = &tf->registry_modules[ref.group]; + for (ref.idx = 0; ref.idx < mdl->size; ref.idx++) { + if (write(pipefd[1], &ref, sizeof(ref)) == -1) { + perror("Error during workload distribution"); + close(pipefd[1]); + return EXIT_FAILURE; + } + } + } + /* Close write end to signal EOF */ + close(pipefd[1]); + /* Wait for all workers */ + for (it = 0; it < tf->args.num_processes; it++) { + int ret = 0; + if (waitpid(workers[it], &ret, 0) == -1 || ret != 0) { + status = EXIT_FAILURE; + } + } + + return status; +} +#endif + +static int tf_init(struct tf_framework* tf, int argc, char** argv) +{ + /* Caller must set the registry and its size before calling tf_init */ + if (tf->registry_modules == NULL || tf->num_modules <= 0) { + fprintf(stderr, "Error: tests registry not provided or empty\n"); + return EXIT_FAILURE; + } + + /* Initialize command-line options */ + tf->args.num_processes = 0; + tf->args.custom_seed = NULL; + + /* Disable buffering for stdout to improve reliability of getting + * diagnostic information. Happens right at the start of main because + * setbuf must be used before any other operation on the stream. */ + setbuf(stdout, NULL); + /* Also disable buffering for stderr because it's not guaranteed that it's + * unbuffered on all systems. */ + setbuf(stderr, NULL); + + /* Parse env args */ + if (read_env(tf) != 0) return EXIT_FAILURE; + + /* Parse command-line args */ + if (argc > 1) { + int named_arg_start = 1; /* index to begin processing named arguments */ + if (argc - 1 > MAX_ARGS) { /* first arg is always the binary path */ + fprintf(stderr, "Too many command-line arguments (max: %d)\n", MAX_ARGS); + return EXIT_FAILURE; + } + + /* Compatibility Note: The first two args were the number of iterations and the seed. */ + /* If provided, parse them and adjust the starting index for named arguments accordingly. */ + if (argv[1][0] != '-') { + int has_seed = argc > 2 && argv[2][0] != '-'; + if (parse_iterations("i", argv[1], tf) != 0) return EXIT_FAILURE; + if (has_seed) parse_seed("seed", argv[2], tf); + named_arg_start = has_seed ? 3 : 2; + } + if (read_args(argc, argv, named_arg_start, tf) != 0) { + return EXIT_FAILURE; + } + } + + return EXIT_SUCCESS; +} + +static int tf_run(struct tf_framework* tf) { + /* Process exit status */ + int status; + /* Loop iterator */ + int it; + /* Initial test time */ + int64_t start_time = gettime_i64(); + + /* Log configuration */ + print_args(&tf->args); + + /* Run test RNG tests (must run before we really initialize the test RNG) */ + /* Note: currently, these tests are executed sequentially because there */ + /* is really only one test. */ + for (it = 0; tf->registry_no_rng && it < tf->registry_no_rng->size; it++) { + run_test(&tf->registry_no_rng->data[it]); + } + + /* Initialize test RNG and library contexts */ + testrand_init(tf->args.custom_seed); + if (tf->fn_setup && tf->fn_setup() != 0) return EXIT_FAILURE; + + /* Check whether to process tests sequentially or concurrently */ + if (tf->args.num_processes <= 1) { + status = run_sequential(tf); + } else { +#if defined(SUPPORTS_CONCURRENCY) + status = run_concurrent(tf); +#else + fputs("Parallel execution not supported on your system. Running sequentially...\n", stderr); + status = run_sequential(tf); +#endif + } + + /* Print accumulated time */ + printf("Total execution time: %.3f seconds\n", (double)(gettime_i64() - start_time) / 1000000); + if (tf->fn_teardown && tf->fn_teardown() != 0) return EXIT_FAILURE; + + return status; +} diff --git a/src/unit_test.h b/src/unit_test.h new file mode 100644 index 0000000000..f1374a0d7c --- /dev/null +++ b/src/unit_test.h @@ -0,0 +1,120 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_UNIT_TEST_H +#define SECP256K1_UNIT_TEST_H + +/* --------------------------------------------------------- */ +/* Configurable constants */ +/* --------------------------------------------------------- */ + +/* Maximum number of command-line arguments. + * Must be at least as large as the total number of tests + * to allow specifying all tests individually. */ +#define MAX_ARGS 150 +/* Maximum number of parallel jobs */ +#define MAX_SUBPROCESSES 16 + +/* --------------------------------------------------------- */ +/* Test Framework Registry Macros */ +/* --------------------------------------------------------- */ + +#define CASE(name) { #name, run_##name } + +#define MAKE_TEST_MODULE(name) { \ + #name, \ + tests_##name, \ + sizeof(tests_##name) / sizeof(tests_##name[0]) \ +} + +/* --------------------------------------------------------- */ +/* Test Framework API */ +/* --------------------------------------------------------- */ + +typedef void (*test_fn)(void); + +struct tf_test_entry { + const char* name; + test_fn func; +}; + +struct tf_test_module { + const char* name; + const struct tf_test_entry* data; + int size; +}; + +typedef int (*setup_ctx_fn)(void); +typedef int (*teardown_fn)(void); + +/* Reference to a test in the registry. Group index and test index */ +typedef struct { + int group; + int idx; +} tf_test_ref; + +/* --- Command-line args --- */ +struct tf_args { + /* 0 => sequential; 1..MAX_SUBPROCESSES => parallel workers */ + int num_processes; + /* Specific RNG seed */ + const char* custom_seed; +}; + +/* --------------------------------------------------------- */ +/* Public API */ +/* --------------------------------------------------------- */ + +struct tf_framework { + /* Command-line args */ + struct tf_args args; + /* Test modules registry */ + const struct tf_test_module* registry_modules; + /* Num of modules */ + int num_modules; + /* Registry for tests that require no RNG init */ + const struct tf_test_module* registry_no_rng; + /* Specific context setup and teardown functions */ + setup_ctx_fn fn_setup; + teardown_fn fn_teardown; +}; + +/* + * Initialize the test framework. + * + * Must be called before tf_run() and before any output is performed to + * stdout or stderr, because this function disables buffering on both + * streams to ensure reliable diagnostic output. + * + * Parses command-line arguments and configures the framework context. + * The caller must initialize the following members of 'tf' before calling: + * - tf->registry_modules + * - tf->num_modules + * + * Side effects: + * - stdout and stderr are set to unbuffered mode via setbuf(). + * This allows immediate flushing of diagnostic messages but may + * affect performance for other output operations. + * + * Returns: + * EXIT_SUCCESS (0) on success, + * EXIT_FAILURE (non-zero) on error. + */ +static int tf_init(struct tf_framework* tf, int argc, char** argv); + +/* + * Run tests based on the provided test framework context. + * + * This function uses the configuration stored in the tf_framework + * (targets, number of processes, iteration count, etc.) to determine + * which tests to execute and how to execute them. + * + * Returns: + * EXIT_SUCCESS (0) if all tests passed, + * EXIT_FAILURE (non-zero) otherwise. + */ +static int tf_run(struct tf_framework* tf); + +#endif /* SECP256K1_UNIT_TEST_H */ From 9ec3bfe22dc662875e6fca2419713eae105dabee Mon Sep 17 00:00:00 2001 From: furszy Date: Tue, 9 Sep 2025 11:45:17 -0400 Subject: [PATCH 529/557] test: adapt modules to the new test infrastructure This not only provides a structural improvement but also allows us to (1) specify individual tests to run and (2) execute each of them concurrently. --- src/modules/ecdh/tests_impl.h | 17 ++++++----- src/modules/ellswift/tests_impl.h | 7 +++++ src/modules/extrakeys/tests_impl.h | 21 +++++++------ src/modules/musig/tests_impl.h | 47 ++++++++++++++--------------- src/modules/recovery/tests_impl.h | 25 +++++++-------- src/modules/schnorrsig/tests_impl.h | 31 ++++++++++--------- src/tests.c | 38 +---------------------- src/unit_test.h | 13 ++++++++ 8 files changed, 93 insertions(+), 106 deletions(-) diff --git a/src/modules/ecdh/tests_impl.h b/src/modules/ecdh/tests_impl.h index 6888f18c64..c1a5e73c8a 100644 --- a/src/modules/ecdh/tests_impl.h +++ b/src/modules/ecdh/tests_impl.h @@ -7,6 +7,8 @@ #ifndef SECP256K1_MODULE_ECDH_TESTS_H #define SECP256K1_MODULE_ECDH_TESTS_H +#include "../../unit_test.h" + static int ecdh_hash_function_test_xpassthru(unsigned char *output, const unsigned char *x, const unsigned char *y, void *data) { (void)y; (void)data; @@ -182,12 +184,13 @@ static void test_ecdh_wycheproof(void) { } } -static void run_ecdh_tests(void) { - test_ecdh_api(); - test_ecdh_generator_basepoint(); - test_bad_scalar(); - test_result_basepoint(); - test_ecdh_wycheproof(); -} +/* --- Test registry --- */ +static const struct tf_test_entry tests_ecdh[] = { + CASE1(test_ecdh_api), + CASE1(test_ecdh_generator_basepoint), + CASE1(test_bad_scalar), + CASE1(test_result_basepoint), + CASE1(test_ecdh_wycheproof), +}; #endif /* SECP256K1_MODULE_ECDH_TESTS_H */ diff --git a/src/modules/ellswift/tests_impl.h b/src/modules/ellswift/tests_impl.h index b90fd0ab88..63c36e7ff1 100644 --- a/src/modules/ellswift/tests_impl.h +++ b/src/modules/ellswift/tests_impl.h @@ -7,6 +7,7 @@ #define SECP256K1_MODULE_ELLSWIFT_TESTS_H #include "../../../include/secp256k1_ellswift.h" +#include "../../unit_test.h" struct ellswift_xswiftec_inv_test { int enc_bitmap; @@ -433,4 +434,10 @@ void run_ellswift_tests(void) { } } +/* --- Test registry --- */ +/* TODO: subdivide test in cases */ +static const struct tf_test_entry tests_ellswift[] = { + CASE(ellswift_tests), +}; + #endif diff --git a/src/modules/extrakeys/tests_impl.h b/src/modules/extrakeys/tests_impl.h index ab4ef4a74b..abebd1106b 100644 --- a/src/modules/extrakeys/tests_impl.h +++ b/src/modules/extrakeys/tests_impl.h @@ -8,6 +8,7 @@ #define SECP256K1_MODULE_EXTRAKEYS_TESTS_H #include "../../../include/secp256k1_extrakeys.h" +#include "../../unit_test.h" static void test_xonly_pubkey(void) { secp256k1_pubkey pk; @@ -467,17 +468,17 @@ static void test_keypair_add(void) { } } -static void run_extrakeys_tests(void) { +/* --- Test registry --- */ +static const struct tf_test_entry tests_extrakeys[] = { /* xonly key test cases */ - test_xonly_pubkey(); - test_xonly_pubkey_tweak(); - test_xonly_pubkey_tweak_check(); - test_xonly_pubkey_tweak_recursive(); - test_xonly_pubkey_comparison(); - + CASE1(test_xonly_pubkey), + CASE1(test_xonly_pubkey_tweak), + CASE1(test_xonly_pubkey_tweak_check), + CASE1(test_xonly_pubkey_tweak_recursive), + CASE1(test_xonly_pubkey_comparison), /* keypair tests */ - test_keypair(); - test_keypair_add(); -} + CASE1(test_keypair), + CASE1(test_keypair_add), +}; #endif diff --git a/src/modules/musig/tests_impl.h b/src/modules/musig/tests_impl.h index b57b26264a..b4ba185494 100644 --- a/src/modules/musig/tests_impl.h +++ b/src/modules/musig/tests_impl.h @@ -20,6 +20,7 @@ #include "../../group.h" #include "../../hash.h" #include "../../util.h" +#include "../../unit_test.h" #include "vectors.h" @@ -36,7 +37,7 @@ static int create_keypair_and_pk(secp256k1_keypair *keypair, secp256k1_pubkey *p /* Just a simple (non-tweaked) 2-of-2 MuSig aggregate, sign, verify * test. */ -static void musig_simple_test(void) { +static void musig_simple_test_internal(void) { unsigned char sk[2][32]; secp256k1_keypair keypair[2]; secp256k1_musig_pubnonce pubnonce[2]; @@ -629,7 +630,7 @@ static void musig_tweak_test_helper(const secp256k1_xonly_pubkey* agg_pk, const /* Create aggregate public key P[0], tweak multiple times (using xonly and * plain tweaking) and test signing. */ -static void musig_tweak_test(void) { +static void musig_tweak_test_internal(void) { unsigned char sk[2][32]; secp256k1_pubkey pk[2]; const secp256k1_pubkey *pk_ptr[2]; @@ -1114,28 +1115,24 @@ static void musig_test_static_nonce_gen_counter(void) { CHECK(secp256k1_memcmp_var(pubnonce66, expected_pubnonce, sizeof(pubnonce66)) == 0); } -static void run_musig_tests(void) { - int i; - - for (i = 0; i < COUNT; i++) { - musig_simple_test(); - } - musig_api_tests(); - musig_nonce_test(); - for (i = 0; i < COUNT; i++) { - /* Run multiple times to ensure that pk and nonce have different y - * parities */ - musig_tweak_test(); - } - sha256_tag_test(); - musig_test_vectors_keyagg(); - musig_test_vectors_noncegen(); - musig_test_vectors_nonceagg(); - musig_test_vectors_signverify(); - musig_test_vectors_tweak(); - musig_test_vectors_sigagg(); - - musig_test_static_nonce_gen_counter(); -} +/* --- Test registry --- */ +REPEAT_TEST(musig_simple_test) +/* Run multiple times to ensure that pk and nonce have different y parities */ +REPEAT_TEST(musig_tweak_test) + +static const struct tf_test_entry tests_musig[] = { + CASE1(musig_simple_test), + CASE1(musig_api_tests), + CASE1(musig_nonce_test), + CASE1(musig_tweak_test), + CASE1(sha256_tag_test), + CASE1(musig_test_vectors_keyagg), + CASE1(musig_test_vectors_noncegen), + CASE1(musig_test_vectors_nonceagg), + CASE1(musig_test_vectors_signverify), + CASE1(musig_test_vectors_tweak), + CASE1(musig_test_vectors_sigagg), + CASE1(musig_test_static_nonce_gen_counter), +}; #endif diff --git a/src/modules/recovery/tests_impl.h b/src/modules/recovery/tests_impl.h index 7a28a3ce65..09554a242e 100644 --- a/src/modules/recovery/tests_impl.h +++ b/src/modules/recovery/tests_impl.h @@ -7,6 +7,8 @@ #ifndef SECP256K1_MODULE_RECOVERY_TESTS_H #define SECP256K1_MODULE_RECOVERY_TESTS_H +#include "../../unit_test.h" + static int recovery_test_nonce_function(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, const unsigned char *algo16, void *data, unsigned int counter) { (void) msg32; (void) key32; @@ -28,7 +30,7 @@ static int recovery_test_nonce_function(unsigned char *nonce32, const unsigned c return testrand_bits(1); } -static void test_ecdsa_recovery_api(void) { +static void test_ecdsa_recovery_api_internal(void) { /* Setup contexts that just count errors */ secp256k1_pubkey pubkey; secp256k1_pubkey recpubkey; @@ -92,7 +94,7 @@ static void test_ecdsa_recovery_api(void) { CHECK(secp256k1_ecdsa_recoverable_signature_parse_compact(CTX, &recsig, sig, recid) == 0); } -static void test_ecdsa_recovery_end_to_end(void) { +static void test_ecdsa_recovery_end_to_end_internal(void) { unsigned char extra[32] = {0x00}; unsigned char privkey[32]; unsigned char message[32]; @@ -324,15 +326,14 @@ static void test_ecdsa_recovery_edge_cases(void) { } } -static void run_recovery_tests(void) { - int i; - for (i = 0; i < COUNT; i++) { - test_ecdsa_recovery_api(); - } - for (i = 0; i < 64*COUNT; i++) { - test_ecdsa_recovery_end_to_end(); - } - test_ecdsa_recovery_edge_cases(); -} +/* --- Test registry --- */ +REPEAT_TEST(test_ecdsa_recovery_api) +REPEAT_TEST_MULT(test_ecdsa_recovery_end_to_end, 64) + +static const struct tf_test_entry tests_recovery[] = { + CASE1(test_ecdsa_recovery_api), + CASE1(test_ecdsa_recovery_end_to_end), + CASE1(test_ecdsa_recovery_edge_cases) +}; #endif /* SECP256K1_MODULE_RECOVERY_TESTS_H */ diff --git a/src/modules/schnorrsig/tests_impl.h b/src/modules/schnorrsig/tests_impl.h index 5abbeefe0b..9a1b15f0b2 100644 --- a/src/modules/schnorrsig/tests_impl.h +++ b/src/modules/schnorrsig/tests_impl.h @@ -8,6 +8,7 @@ #define SECP256K1_MODULE_SCHNORRSIG_TESTS_H #include "../../../include/secp256k1_schnorrsig.h" +#include "../../unit_test.h" /* Checks that a bit flip in the n_flip-th argument (that has n_bytes many * bytes) changes the hash function @@ -802,7 +803,7 @@ static int nonce_function_overflowing(unsigned char *nonce32, const unsigned cha return 1; } -static void test_schnorrsig_sign(void) { +static void test_schnorrsig_sign_internal(void) { unsigned char sk[32]; secp256k1_xonly_pubkey pk; secp256k1_keypair keypair; @@ -852,7 +853,7 @@ static void test_schnorrsig_sign(void) { /* Creates N_SIGS valid signatures and verifies them with verify and * verify_batch (TODO). Then flips some bits and checks that verification now * fails. */ -static void test_schnorrsig_sign_verify(void) { +static void test_schnorrsig_sign_verify_internal(void) { unsigned char sk[32]; unsigned char msg[N_SIGS][32]; unsigned char sig[N_SIGS][64]; @@ -965,18 +966,18 @@ static void test_schnorrsig_taproot(void) { CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, output_pk_bytes, pk_parity, &internal_pk, tweak) == 1); } -static void run_schnorrsig_tests(void) { - int i; - run_nonce_function_bip340_tests(); - - test_schnorrsig_api(); - test_schnorrsig_sha256_tagged(); - test_schnorrsig_bip_vectors(); - for (i = 0; i < COUNT; i++) { - test_schnorrsig_sign(); - test_schnorrsig_sign_verify(); - } - test_schnorrsig_taproot(); -} +/* --- Test registry --- */ +REPEAT_TEST(test_schnorrsig_sign) +REPEAT_TEST(test_schnorrsig_sign_verify) + +static const struct tf_test_entry tests_schnorrsig[] = { + CASE(nonce_function_bip340_tests), + CASE1(test_schnorrsig_api), + CASE1(test_schnorrsig_sha256_tagged), + CASE1(test_schnorrsig_bip_vectors), + CASE1(test_schnorrsig_sign), + CASE1(test_schnorrsig_sign_verify), + CASE1(test_schnorrsig_taproot), +}; #endif diff --git a/src/tests.c b/src/tests.c index efcdbdc8b8..5f4f6b0f22 100644 --- a/src/tests.c +++ b/src/tests.c @@ -7755,12 +7755,6 @@ static const struct tf_test_entry tests_ec[] = { CASE(eckey_negate_test), }; -#ifdef ENABLE_MODULE_ECDH -static const struct tf_test_entry tests_ecdh[] = { - CASE(ecdh_tests), -}; -#endif - static const struct tf_test_entry tests_ecdsa[] = { CASE(ec_illegal_argument_tests), CASE(pubkey_comparison), @@ -7773,37 +7767,6 @@ static const struct tf_test_entry tests_ecdsa[] = { CASE(ecdsa_wycheproof), }; -#ifdef ENABLE_MODULE_RECOVERY -static const struct tf_test_entry tests_recovery[] = { - /* ECDSA pubkey recovery tests */ - CASE(recovery_tests), -}; -#endif - -#ifdef ENABLE_MODULE_EXTRAKEYS -static const struct tf_test_entry tests_extrakeys[] = { - CASE(extrakeys_tests), -}; -#endif - -#ifdef ENABLE_MODULE_SCHNORRSIG -static const struct tf_test_entry tests_schnorrsig[] = { - CASE(schnorrsig_tests), -}; -#endif - -#ifdef ENABLE_MODULE_MUSIG -static const struct tf_test_entry tests_musig[] = { - CASE(musig_tests), -}; -#endif - -#ifdef ENABLE_MODULE_ELLSWIFT -static const struct tf_test_entry tests_ellswift[] = { - CASE(ellswift_tests), -}; -#endif - static const struct tf_test_entry tests_utils[] = { CASE(hsort_tests), CASE(secp256k1_memczero_test), @@ -7827,6 +7790,7 @@ static const struct tf_test_module registry_modules[] = { #endif MAKE_TEST_MODULE(ecdsa), #ifdef ENABLE_MODULE_RECOVERY + /* ECDSA pubkey recovery tests */ MAKE_TEST_MODULE(recovery), #endif #ifdef ENABLE_MODULE_EXTRAKEYS diff --git a/src/unit_test.h b/src/unit_test.h index f1374a0d7c..7052fdc79e 100644 --- a/src/unit_test.h +++ b/src/unit_test.h @@ -22,6 +22,7 @@ /* --------------------------------------------------------- */ #define CASE(name) { #name, run_##name } +#define CASE1(name) { #name, name } #define MAKE_TEST_MODULE(name) { \ #name, \ @@ -29,6 +30,18 @@ sizeof(tests_##name) / sizeof(tests_##name[0]) \ } +/* Macro to wrap a test internal function with a COUNT loop (iterations number) */ +#define REPEAT_TEST(fn) REPEAT_TEST_MULT(fn, 1) +#define REPEAT_TEST_MULT(fn, multiplier) \ + static void fn(void) { \ + int i; \ + int repeat = COUNT * (multiplier); \ + for (i = 0; i < repeat; i++) \ + fn##_internal(); \ + } + + + /* --------------------------------------------------------- */ /* Test Framework API */ /* --------------------------------------------------------- */ From 0302c1a3d73137fcf75a7ca0f0f3cbcec0368ec8 Mon Sep 17 00:00:00 2001 From: furszy Date: Wed, 3 Sep 2025 15:27:23 -0400 Subject: [PATCH 530/557] test: add --help for command-line options Add a help message for the test suite, documenting available options, defaults, and backward-compatible positional arguments. --- src/unit_test.c | 28 ++++++++++++++++++++++++++++ src/unit_test.h | 2 ++ 2 files changed, 30 insertions(+) diff --git a/src/unit_test.c b/src/unit_test.c index 914594bc13..04878eecd0 100644 --- a/src/unit_test.c +++ b/src/unit_test.c @@ -74,6 +74,23 @@ static int parse_arg(const char* key, const char* value, struct tf_framework* tf return -1; } +static void help(void) { + printf("Usage: ./tests [options]\n\n"); + printf("Run the test suite for the project with optional configuration.\n\n"); + printf("Options:\n"); + printf(" --help, -h Show this help message\n"); + printf(" --jobs=, -j= Number of parallel worker processes (default: 0 = sequential)\n"); + printf(" --iterations=, -i= Number of iterations for each test (default: 16)\n"); + printf(" --seed= Set a specific RNG seed (default: random)\n"); + printf("\n"); + printf("Notes:\n"); + printf(" - All arguments must be provided in the form '--key=value', '-key=value' or '-k=value'.\n"); + printf(" - Single or double dashes are allowed for multi character options.\n"); + printf(" - Unknown arguments are reported but ignored.\n"); + printf(" - Sequential execution occurs if -jobs=0 or unspecified.\n"); + printf(" - Iterations and seed can also be passed as positional arguments before any other argument for backward compatibility.\n"); +} + static int parse_jobs_count(const char* key, const char* value, struct tf_framework* tf) { char* ptr_val; long val = strtol(value, &ptr_val, 10); /* base 10 */ @@ -157,6 +174,11 @@ static int read_args(int argc, char** argv, int start, struct tf_framework* tf) eq = strchr(raw_arg, '='); if (!eq || eq == raw_arg + 1) { + /* Allowed options without value */ + if (strcmp(key, "h") == 0 || strcmp(key, "help") == 0) { + tf->args.help = 1; + return 0; + } fprintf(stderr, "Invalid arg '%s': must be -k=value or --key=value\n", raw_arg); return -1; } @@ -264,6 +286,7 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) /* Initialize command-line options */ tf->args.num_processes = 0; tf->args.custom_seed = NULL; + tf->args.help = 0; /* Disable buffering for stdout to improve reliability of getting * diagnostic information. Happens right at the start of main because @@ -295,6 +318,11 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) if (read_args(argc, argv, named_arg_start, tf) != 0) { return EXIT_FAILURE; } + + if (tf->args.help) { + help(); + exit(EXIT_SUCCESS); + } } return EXIT_SUCCESS; diff --git a/src/unit_test.h b/src/unit_test.h index 7052fdc79e..1eefb016e1 100644 --- a/src/unit_test.h +++ b/src/unit_test.h @@ -74,6 +74,8 @@ struct tf_args { int num_processes; /* Specific RNG seed */ const char* custom_seed; + /* Whether to print the help msg */ + int help; }; /* --------------------------------------------------------- */ From 953f7b008865ed503f36b040c4af4db96c4d54d9 Mon Sep 17 00:00:00 2001 From: furszy Date: Wed, 3 Sep 2025 17:18:23 -0400 Subject: [PATCH 531/557] test: support running specific tests/modules targets Add support for specifying single tests or modules to run via the "--target" or "-t" command-line option. Multiple targets can be provided; only the specified tests or all tests in the specified module/s will run instead of the full suite. Examples: -t= runs an specific test. -t= runs all tests within the specified module. Both options can be provided multiple times. --- src/unit_test.c | 96 +++++++++++++++++++++++++++++++++++++++---------- src/unit_test.h | 13 ++++--- 2 files changed, 85 insertions(+), 24 deletions(-) diff --git a/src/unit_test.c b/src/unit_test.c index 04878eecd0..513bc2cc6b 100644 --- a/src/unit_test.c +++ b/src/unit_test.c @@ -25,6 +25,7 @@ int COUNT = 16; static int parse_jobs_count(const char* key, const char* value, struct tf_framework* tf); static int parse_iterations(const char* key, const char* value, struct tf_framework* tf); static int parse_seed(const char* key, const char* value, struct tf_framework* tf); +static int parse_target(const char* key, const char* value, struct tf_framework* tf); /* Mapping table: key -> handler */ typedef int (*ArgHandler)(const char* key, const char* value, struct tf_framework* tf); @@ -41,6 +42,7 @@ struct ArgMap { * converted to the appropriate type, and stored in 'tf->args' struct. */ static struct ArgMap arg_map[] = { + { "t", parse_target }, { "target", parse_target }, { "j", parse_jobs_count }, { "jobs", parse_jobs_count }, { "i", parse_iterations }, { "iterations", parse_iterations }, { "seed", parse_seed }, @@ -82,6 +84,8 @@ static void help(void) { printf(" --jobs=, -j= Number of parallel worker processes (default: 0 = sequential)\n"); printf(" --iterations=, -i= Number of iterations for each test (default: 16)\n"); printf(" --seed= Set a specific RNG seed (default: random)\n"); + printf(" --target=, -t= Run a specific test (can be provided multiple times)\n"); + printf(" --target=, -t= Run all tests within a specific module (can be provided multiple times)\n"); printf("\n"); printf("Notes:\n"); printf(" - All arguments must be provided in the form '--key=value', '-key=value' or '-k=value'.\n"); @@ -152,6 +156,34 @@ static const char* normalize_key(const char* arg, const char** err_msg) { return key; } +static int parse_target(const char* key, const char* value, struct tf_framework* tf) { + int group, idx; + const struct tf_test_entry* entry; + UNUSED(key); + /* Find test index in the registry */ + for (group = 0; group < tf->num_modules; group++) { + const struct tf_test_module* module = &tf->registry_modules[group]; + int add_all = strcmp(value, module->name) == 0; /* select all from module */ + for (idx = 0; idx < module->size; idx++) { + entry = &module->data[idx]; + if (add_all || strcmp(value, entry->name) == 0) { + if (tf->args.targets.size >= MAX_ARGS) { + fprintf(stderr, "Too many -target args (max: %d)\n", MAX_ARGS); + return -1; + } + tf->args.targets.slots[tf->args.targets.size++] = entry; + /* Matched a single test, we're done */ + if (!add_all) return 0; + } + } + /* If add_all was true, we added all tests in the module, so return */ + if (add_all) return 0; + } + fprintf(stderr, "Error: target '%s' not found (missing or module disabled).\n" + "Run program with -print_tests option to display available tests and modules.\n", value); + return -1; +} + /* Read args: all must be in the form -key=value, --key=value or -key=value */ static int read_args(int argc, char** argv, int start, struct tf_framework* tf) { int i; @@ -203,18 +235,16 @@ static void run_test(const struct tf_test_entry* t) { /* Process tests in sequential order */ static int run_sequential(struct tf_framework* tf) { - tf_test_ref ref; - const struct tf_test_module* mdl; - for (ref.group = 0; ref.group < tf->num_modules; ref.group++) { - mdl = &tf->registry_modules[ref.group]; - for (ref.idx = 0; ref.idx < mdl->size; ref.idx++) { - run_test(&mdl->data[ref.idx]); - } + int it; + for (it = 0; it < tf->args.targets.size; it++) { + run_test(tf->args.targets.slots[it]); } return EXIT_SUCCESS; } #if defined(SUPPORTS_CONCURRENCY) +static const int MAX_TARGETS = 255; + /* Process tests in parallel */ static int run_concurrent(struct tf_framework* tf) { /* Sub-processes info */ @@ -222,7 +252,15 @@ static int run_concurrent(struct tf_framework* tf) { int pipefd[2]; int status = EXIT_SUCCESS; int it; /* loop iterator */ - tf_test_ref ref; /* test index */ + unsigned char idx; /* test index */ + + if (tf->args.targets.size > MAX_TARGETS) { + fprintf(stderr, "Internal Error: the number of targets (%d) exceeds the maximum supported (%d). " + "If you need more, extend 'run_concurrent()' to handle additional targets.\n", + tf->args.targets.size, MAX_TARGETS); + exit(EXIT_FAILURE); + } + if (pipe(pipefd) != 0) { perror("Error during pipe setup"); @@ -239,8 +277,8 @@ static int run_concurrent(struct tf_framework* tf) { if (pid == 0) { /* Child worker: read jobs from the shared pipe */ close(pipefd[1]); /* children never write */ - while (read(pipefd[0], &ref, sizeof(ref)) == sizeof(ref)) { - run_test(&tf->registry_modules[ref.group].data[ref.idx]); + while (read(pipefd[0], &idx, sizeof(idx)) == sizeof(idx)) { + run_test(tf->args.targets.slots[(int)idx]); } _exit(EXIT_SUCCESS); /* finish child process */ } else { @@ -251,14 +289,12 @@ static int run_concurrent(struct tf_framework* tf) { /* Parent: write all tasks into the pipe */ close(pipefd[0]); /* close read end */ - for (ref.group = 0; ref.group < tf->num_modules; ref.group++) { - const struct tf_test_module* mdl = &tf->registry_modules[ref.group]; - for (ref.idx = 0; ref.idx < mdl->size; ref.idx++) { - if (write(pipefd[1], &ref, sizeof(ref)) == -1) { - perror("Error during workload distribution"); - close(pipefd[1]); - return EXIT_FAILURE; - } + for (it = 0; it < tf->args.targets.size; it++) { + idx = (unsigned char)it; + if (write(pipefd[1], &idx, sizeof(idx)) == -1) { + perror("Error during workload distribution"); + close(pipefd[1]); + return EXIT_FAILURE; } } /* Close write end to signal EOF */ @@ -287,6 +323,7 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) tf->args.num_processes = 0; tf->args.custom_seed = NULL; tf->args.help = 0; + tf->args.targets.size = 0; /* Disable buffering for stdout to improve reliability of getting * diagnostic information. Happens right at the start of main because @@ -331,11 +368,30 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) static int tf_run(struct tf_framework* tf) { /* Process exit status */ int status; + /* Whether to run all tests */ + int run_all; /* Loop iterator */ int it; /* Initial test time */ int64_t start_time = gettime_i64(); + /* Populate targets with all tests if none were explicitly specified */ + run_all = tf->args.targets.size == 0; + if (run_all) { + int group, idx; + for (group = 0; group < tf->num_modules; group++) { + const struct tf_test_module* module = &tf->registry_modules[group]; + for (idx = 0; idx < module->size; idx++) { + if (tf->args.targets.size >= MAX_ARGS) { + fprintf(stderr, "Internal Error: Number of tests (%d) exceeds MAX_ARGS (%d). " + "Increase MAX_ARGS to accommodate all tests.\n", tf->args.targets.size, MAX_ARGS); + return EXIT_FAILURE; + } + tf->args.targets.slots[tf->args.targets.size++] = &module->data[idx]; + } + } + } + /* Log configuration */ print_args(&tf->args); @@ -343,7 +399,9 @@ static int tf_run(struct tf_framework* tf) { /* Note: currently, these tests are executed sequentially because there */ /* is really only one test. */ for (it = 0; tf->registry_no_rng && it < tf->registry_no_rng->size; it++) { - run_test(&tf->registry_no_rng->data[it]); + if (run_all) { /* future: support filtering */ + run_test(&tf->registry_no_rng->data[it]); + } } /* Initialize test RNG and library contexts */ diff --git a/src/unit_test.h b/src/unit_test.h index 1eefb016e1..e76b8c0118 100644 --- a/src/unit_test.h +++ b/src/unit_test.h @@ -62,11 +62,12 @@ struct tf_test_module { typedef int (*setup_ctx_fn)(void); typedef int (*teardown_fn)(void); -/* Reference to a test in the registry. Group index and test index */ -typedef struct { - int group; - int idx; -} tf_test_ref; +struct tf_targets { + /* Target tests indexes */ + const struct tf_test_entry* slots[MAX_ARGS]; + /* Next available slot */ + int size; +}; /* --- Command-line args --- */ struct tf_args { @@ -76,6 +77,8 @@ struct tf_args { const char* custom_seed; /* Whether to print the help msg */ int help; + /* Target tests indexes */ + struct tf_targets targets; }; /* --------------------------------------------------------- */ From 95b9953ea44ad6273dd8ddd2040844a54936ed71 Mon Sep 17 00:00:00 2001 From: furszy Date: Mon, 8 Sep 2025 14:17:12 -0400 Subject: [PATCH 532/557] test: Add option to display all available tests Useful option to avoid opening the large tests.c file just to find the test case you want to run. --- src/unit_test.c | 31 ++++++++++++++++++++++++++++++- src/unit_test.h | 2 ++ 2 files changed, 32 insertions(+), 1 deletion(-) diff --git a/src/unit_test.c b/src/unit_test.c index 513bc2cc6b..4eace5266a 100644 --- a/src/unit_test.c +++ b/src/unit_test.c @@ -81,6 +81,7 @@ static void help(void) { printf("Run the test suite for the project with optional configuration.\n\n"); printf("Options:\n"); printf(" --help, -h Show this help message\n"); + printf(" --list_tests, -l Display list of all available tests and modules\n"); printf(" --jobs=, -j= Number of parallel worker processes (default: 0 = sequential)\n"); printf(" --iterations=, -i= Number of iterations for each test (default: 16)\n"); printf(" --seed= Set a specific RNG seed (default: random)\n"); @@ -95,6 +96,24 @@ static void help(void) { printf(" - Iterations and seed can also be passed as positional arguments before any other argument for backward compatibility.\n"); } +/* Print all tests in registry */ +static void print_test_list(struct tf_framework* tf) { + int m, t, total = 0; + printf("\nAvailable tests (%d modules):\n", tf->num_modules); + printf("========================================\n"); + for (m = 0; m < tf->num_modules; m++) { + const struct tf_test_module* mod = &tf->registry_modules[m]; + printf("Module: %s (%d tests)\n", mod->name, mod->size); + for (t = 0; t < mod->size; t++) { + printf("\t[%3d] %s\n", total + 1, mod->data[t].name); + total++; + } + printf("----------------------------------------\n"); + } + printf("\nRun specific module: ./tests -t=\n"); + printf("Run specific test: ./tests -t=\n\n"); +} + static int parse_jobs_count(const char* key, const char* value, struct tf_framework* tf) { char* ptr_val; long val = strtol(value, &ptr_val, 10); /* base 10 */ @@ -180,7 +199,7 @@ static int parse_target(const char* key, const char* value, struct tf_framework* if (add_all) return 0; } fprintf(stderr, "Error: target '%s' not found (missing or module disabled).\n" - "Run program with -print_tests option to display available tests and modules.\n", value); + "Run program with -list_tests option to display available tests and modules.\n", value); return -1; } @@ -211,6 +230,10 @@ static int read_args(int argc, char** argv, int start, struct tf_framework* tf) tf->args.help = 1; return 0; } + if (strcmp(key, "l") == 0 || strcmp(key, "list_tests") == 0) { + tf->args.list_tests = 1; + return 0; + } fprintf(stderr, "Invalid arg '%s': must be -k=value or --key=value\n", raw_arg); return -1; } @@ -324,6 +347,7 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) tf->args.custom_seed = NULL; tf->args.help = 0; tf->args.targets.size = 0; + tf->args.list_tests = 0; /* Disable buffering for stdout to improve reliability of getting * diagnostic information. Happens right at the start of main because @@ -360,6 +384,11 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) help(); exit(EXIT_SUCCESS); } + + if (tf->args.list_tests) { + print_test_list(tf); + exit(EXIT_SUCCESS); + } } return EXIT_SUCCESS; diff --git a/src/unit_test.h b/src/unit_test.h index e76b8c0118..b41e9f7514 100644 --- a/src/unit_test.h +++ b/src/unit_test.h @@ -77,6 +77,8 @@ struct tf_args { const char* custom_seed; /* Whether to print the help msg */ int help; + /* Whether to print the tests list msg */ + int list_tests; /* Target tests indexes */ struct tf_targets targets; }; From 2f4546ce5610f4f7841fc2dc2eef68dbfcdcc761 Mon Sep 17 00:00:00 2001 From: furszy Date: Tue, 9 Sep 2025 11:02:05 -0400 Subject: [PATCH 533/557] test: add --log option to display tests execution When enabled (--log=1), shows test start, completion, and execution time. --- src/unit_test.c | 32 +++++++++++++++++++++++++++----- src/unit_test.h | 5 +++++ 2 files changed, 32 insertions(+), 5 deletions(-) diff --git a/src/unit_test.c b/src/unit_test.c index 4eace5266a..a1858a117a 100644 --- a/src/unit_test.c +++ b/src/unit_test.c @@ -26,6 +26,7 @@ static int parse_jobs_count(const char* key, const char* value, struct tf_framew static int parse_iterations(const char* key, const char* value, struct tf_framework* tf); static int parse_seed(const char* key, const char* value, struct tf_framework* tf); static int parse_target(const char* key, const char* value, struct tf_framework* tf); +static int parse_logging(const char* key, const char* value, struct tf_framework* tf); /* Mapping table: key -> handler */ typedef int (*ArgHandler)(const char* key, const char* value, struct tf_framework* tf); @@ -46,6 +47,7 @@ static struct ArgMap arg_map[] = { { "j", parse_jobs_count }, { "jobs", parse_jobs_count }, { "i", parse_iterations }, { "iterations", parse_iterations }, { "seed", parse_seed }, + { "log", parse_logging }, { NULL, NULL } /* sentinel */ }; @@ -87,6 +89,7 @@ static void help(void) { printf(" --seed= Set a specific RNG seed (default: random)\n"); printf(" --target=, -t= Run a specific test (can be provided multiple times)\n"); printf(" --target=, -t= Run all tests within a specific module (can be provided multiple times)\n"); + printf(" --log=<0|1> Enable or disable test execution logging (default: 0 = disabled)\n"); printf("\n"); printf("Notes:\n"); printf(" - All arguments must be provided in the form '--key=value', '-key=value' or '-k=value'.\n"); @@ -146,6 +149,12 @@ static int parse_seed(const char* key, const char* value, struct tf_framework* t return 0; } +static int parse_logging(const char* key, const char* value, struct tf_framework* tf) { + UNUSED(key); + tf->args.logging = value && strcmp(value, "1") == 0; + return 0; +} + /* Strip up to two leading dashes */ static const char* normalize_key(const char* arg, const char** err_msg) { const char* key; @@ -250,17 +259,20 @@ static int read_args(int argc, char** argv, int start, struct tf_framework* tf) return 0; } -static void run_test(const struct tf_test_entry* t) { +static void run_test_log(const struct tf_test_entry* t) { + int64_t start_time = gettime_i64(); printf("Running %s..\n", t->name); t->func(); - printf("%s PASSED\n", t->name); + printf("Test %s PASSED (%.3f sec)\n", t->name, (double)(gettime_i64() - start_time) / 1000000); } +static void run_test(const struct tf_test_entry* t) { t->func(); } + /* Process tests in sequential order */ static int run_sequential(struct tf_framework* tf) { int it; for (it = 0; it < tf->args.targets.size; it++) { - run_test(tf->args.targets.slots[it]); + tf->fn_run_test(tf->args.targets.slots[it]); } return EXIT_SUCCESS; } @@ -301,7 +313,7 @@ static int run_concurrent(struct tf_framework* tf) { /* Child worker: read jobs from the shared pipe */ close(pipefd[1]); /* children never write */ while (read(pipefd[0], &idx, sizeof(idx)) == sizeof(idx)) { - run_test(tf->args.targets.slots[(int)idx]); + tf->fn_run_test(tf->args.targets.slots[(int)idx]); } _exit(EXIT_SUCCESS); /* finish child process */ } else { @@ -348,6 +360,7 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) tf->args.help = 0; tf->args.targets.size = 0; tf->args.list_tests = 0; + tf->args.logging = 0; /* Disable buffering for stdout to improve reliability of getting * diagnostic information. Happens right at the start of main because @@ -391,6 +404,7 @@ static int tf_init(struct tf_framework* tf, int argc, char** argv) } } + tf->fn_run_test = tf->args.logging ? run_test_log : run_test; return EXIT_SUCCESS; } @@ -403,6 +417,12 @@ static int tf_run(struct tf_framework* tf) { int it; /* Initial test time */ int64_t start_time = gettime_i64(); + /* Verify 'tf_init' has been called */ + if (!tf->fn_run_test) { + fprintf(stderr, "Error: No test runner set. You must call 'tf_init' first to initialize the framework " + "or manually assign 'fn_run_test' before calling 'tf_run'.\n"); + return EXIT_FAILURE; + } /* Populate targets with all tests if none were explicitly specified */ run_all = tf->args.targets.size == 0; @@ -421,6 +441,8 @@ static int tf_run(struct tf_framework* tf) { } } + if (!tf->args.logging) printf("Tests running silently. Use '-log=1' to enable detailed logging\n"); + /* Log configuration */ print_args(&tf->args); @@ -429,7 +451,7 @@ static int tf_run(struct tf_framework* tf) { /* is really only one test. */ for (it = 0; tf->registry_no_rng && it < tf->registry_no_rng->size; it++) { if (run_all) { /* future: support filtering */ - run_test(&tf->registry_no_rng->data[it]); + tf->fn_run_test(&tf->registry_no_rng->data[it]); } } diff --git a/src/unit_test.h b/src/unit_test.h index b41e9f7514..bf301e5392 100644 --- a/src/unit_test.h +++ b/src/unit_test.h @@ -61,6 +61,7 @@ struct tf_test_module { typedef int (*setup_ctx_fn)(void); typedef int (*teardown_fn)(void); +typedef void (*run_test_fn)(const struct tf_test_entry*); struct tf_targets { /* Target tests indexes */ @@ -81,6 +82,8 @@ struct tf_args { int list_tests; /* Target tests indexes */ struct tf_targets targets; + /* Enable test execution logging */ + int logging; }; /* --------------------------------------------------------- */ @@ -99,6 +102,8 @@ struct tf_framework { /* Specific context setup and teardown functions */ setup_ctx_fn fn_setup; teardown_fn fn_teardown; + /* Test runner function (can be customized) */ + run_test_fn fn_run_test; }; /* From 122014edb38762acbf8c98edae0ce54d630b072b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 13 Oct 2025 15:08:09 +0100 Subject: [PATCH 534/557] ci: Add `scope` parameter to `cache-{to,from}` options This change fixes an issue where only the latest image cache was available. --- .github/actions/run-in-docker-action/action.yml | 8 ++++++-- .github/workflows/ci.yml | 4 ++-- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index 74933686a0..f9bd4746e1 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -7,6 +7,10 @@ inputs: tag: description: 'A tag of an image' required: true + scope: + description: 'A cached image scope' + required: false + default: ${{ runner.arch }} command: description: 'A command to run in a container' required: false @@ -24,7 +28,7 @@ runs: file: ${{ inputs.dockerfile }} tags: ${{ inputs.tag }} load: true - cache-from: type=gha + cache-from: type=gha,scope=${{ inputs.scope }} - uses: docker/build-push-action@v5 id: retry_builder @@ -34,7 +38,7 @@ runs: file: ${{ inputs.dockerfile }} tags: ${{ inputs.tag }} load: true - cache-from: type=gha + cache-from: type=gha,scope=${{ inputs.scope }} - # Workaround for https://github.com/google/sanitizers/issues/1614 . # The underlying issue has been fixed in clang 18.1.3. diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 9783251d65..83b382407a 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -71,8 +71,8 @@ jobs: with: file: ./ci/linux-debian.Dockerfile tags: ${{ matrix.arch }}-debian-image - cache-from: type=gha - cache-to: type=gha,mode=min + cache-from: type=gha,scope=${{ runner.arch }} + cache-to: type=gha,scope=${{ runner.arch }},mode=min x86_64-debian: name: "x86_64: Linux (Debian stable)" From b2a95a420ff67ae0e162aaea022e1142e3701df8 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 13 Oct 2025 15:54:24 +0100 Subject: [PATCH 535/557] ci: Drop `tags` input for `docker/build-push-action` The `tags` input is unused for caching. --- .../actions/run-in-docker-action/action.yml | 8 ++--- .github/workflows/ci.yml | 31 ++++--------------- 2 files changed, 8 insertions(+), 31 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index f9bd4746e1..2af23643fd 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -4,9 +4,6 @@ inputs: dockerfile: description: 'A Dockerfile that defines an image' required: true - tag: - description: 'A tag of an image' - required: true scope: description: 'A cached image scope' required: false @@ -26,7 +23,6 @@ runs: with: context: . file: ${{ inputs.dockerfile }} - tags: ${{ inputs.tag }} load: true cache-from: type=gha,scope=${{ inputs.scope }} @@ -36,7 +32,6 @@ runs: with: context: . file: ${{ inputs.dockerfile }} - tags: ${{ inputs.tag }} load: true cache-from: type=gha,scope=${{ inputs.scope }} @@ -51,7 +46,8 @@ runs: $(echo '${{ toJSON(env) }}' | jq -r 'keys[] | "--env \(.) "') \ --volume ${{ github.workspace }}:${{ github.workspace }} \ --workdir ${{ github.workspace }} \ - ${{ inputs.tag }} bash -c " + $(docker images -q | head -n1) \ + bash -c " git config --global --add safe.directory ${{ github.workspace }} ${{ inputs.command }} " diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 83b382407a..49f16b875f 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -70,7 +70,6 @@ jobs: uses: docker/build-push-action@v5 with: file: ./ci/linux-debian.Dockerfile - tags: ${{ matrix.arch }}-debian-image cache-from: type=gha,scope=${{ runner.arch }} cache-to: type=gha,scope=${{ runner.arch }},mode=min @@ -116,7 +115,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -152,7 +150,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -184,7 +181,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -225,7 +221,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -265,7 +260,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: arm64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -297,7 +291,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -313,28 +306,22 @@ jobs: fail-fast: false matrix: include: - - docker_arch: x64 - runner: ubuntu-latest + - runner: ubuntu-latest binary_arch: x64 env_vars: { CC: 'clang', ASM: 'auto' } - - docker_arch: x64 - runner: ubuntu-latest + - runner: ubuntu-latest binary_arch: i686 env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'auto' } - - docker_arch: arm64 - runner: ubuntu-24.04-arm + - runner: ubuntu-24.04-arm binary_arch: arm64 env_vars: { CC: 'clang', ASM: 'auto' } - - docker_arch: x64 - runner: ubuntu-latest + - runner: ubuntu-latest binary_arch: x64 env_vars: { CC: 'clang', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } - - docker_arch: x64 - runner: ubuntu-latest + - runner: ubuntu-latest binary_arch: i686 env_vars: { CC: 'i686-linux-gnu-gcc', HOST: 'i686-linux-gnu', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } - - docker_arch: arm64 - runner: ubuntu-24.04-arm + - runner: ubuntu-24.04-arm binary_arch: arm64 env_vars: { CC: 'clang', ASM: 'no', ECMULTGENKB: 2, ECMULTWINDOW: 2 } @@ -360,7 +347,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: ${{ matrix.docker_arch }}-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -404,7 +390,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -455,7 +440,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -498,7 +482,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -714,7 +697,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image - name: Print logs uses: ./.github/actions/print-logs @@ -733,7 +715,6 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile - tag: x64-debian-image command: | g++ -Werror include/*.h clang -Werror -x c++-header include/*.h From 70ae177ca06b4d24c73c411d8524507d68aff45a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 13 Oct 2025 15:54:37 +0100 Subject: [PATCH 536/557] ci: Bump `docker/build-push-action` version See https://github.com/docker/build-push-action/releases. --- .github/actions/run-in-docker-action/action.yml | 4 ++-- .github/workflows/ci.yml | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index 2af23643fd..d3ab44b188 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -17,7 +17,7 @@ runs: steps: - uses: docker/setup-buildx-action@v3 - - uses: docker/build-push-action@v5 + - uses: docker/build-push-action@v6 id: main_builder continue-on-error: true with: @@ -26,7 +26,7 @@ runs: load: true cache-from: type=gha,scope=${{ inputs.scope }} - - uses: docker/build-push-action@v5 + - uses: docker/build-push-action@v6 id: retry_builder if: steps.main_builder.outcome == 'failure' with: diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 49f16b875f..f22ef2a3c0 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -67,7 +67,7 @@ jobs: network=host - name: Build container - uses: docker/build-push-action@v5 + uses: docker/build-push-action@v6 with: file: ./ci/linux-debian.Dockerfile cache-from: type=gha,scope=${{ runner.arch }} From f163c35897db9a4adc2a5b37926942817a4fdeb7 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 13 Oct 2025 15:54:47 +0100 Subject: [PATCH 537/557] ci: Set `DEBIAN_FRONTEND=noninteractive` This suppresses `debconf: unable to initialize frontend: ...` warnings. --- ci/linux-debian.Dockerfile | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 8ced83f209..22b6d35c92 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -21,7 +21,7 @@ RUN dpkg --add-architecture i386 && \ # dpkg-dev: to make pkg-config work in cross-builds # llvm: for llvm-symbolizer, which is used by clang's UBSan for symbolized stack traces -RUN apt-get update && apt-get install --no-install-recommends -y \ +RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \ git ca-certificates \ make automake libtool pkg-config dpkg-dev valgrind qemu-user \ gcc clang llvm libclang-rt-dev libc6-dbg \ @@ -34,14 +34,15 @@ RUN apt-get update && apt-get install --no-install-recommends -y \ gcc-mingw-w64-i686-win32 wine32 \ python3-full && \ if ! ( dpkg --print-architecture | grep --quiet "arm64" ) ; then \ - apt-get install --no-install-recommends -y \ + DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \ gcc-aarch64-linux-gnu libc6-dev-arm64-cross libc6-dbg:arm64 ;\ fi && \ apt-get clean && rm -rf /var/lib/apt/lists/* # Build and install gcc snapshot ARG GCC_SNAPSHOT_MAJOR=16 -RUN apt-get update && apt-get install --no-install-recommends -y wget libgmp-dev libmpfr-dev libmpc-dev flex && \ +RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \ + wget libgmp-dev libmpfr-dev libmpc-dev flex && \ mkdir gcc && cd gcc && \ wget --progress=dot:giga --https-only --recursive --accept '*.tar.xz' --level 1 --no-directories "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}" && \ wget "https://gcc.gnu.org/pub/gcc/snapshots/LATEST-${GCC_SNAPSHOT_MAJOR}/sha512.sum" && \ @@ -62,7 +63,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y wget libgmp-dev # Install clang snapshot, see https://apt.llvm.org/ RUN \ # Setup GPG keys of LLVM repository - apt-get update && apt-get install --no-install-recommends -y wget && \ + apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y wget && \ wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc && \ # Add repository for this Debian release . /etc/os-release && echo "deb http://apt.llvm.org/${VERSION_CODENAME} llvm-toolchain-${VERSION_CODENAME} main" >> /etc/apt/sources.list && \ @@ -70,7 +71,7 @@ RUN \ # Determine the version number of the LLVM development branch LLVM_VERSION=$(apt-cache search --names-only '^clang-[0-9]+$' | sort -V | tail -1 | cut -f1 -d" " | cut -f2 -d"-" ) && \ # Install - apt-get install --no-install-recommends -y "clang-${LLVM_VERSION}" && \ + DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y "clang-${LLVM_VERSION}" && \ # Create symlink ln -s "/usr/bin/clang-${LLVM_VERSION}" /usr/bin/clang-snapshot && \ # Clean up From 6894c964f3504ab2bc09b46e17ba30c725d232f3 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 11:19:16 +0100 Subject: [PATCH 538/557] Fix Clang 21+ `-Wuninitialized-const-pointer` warning when using MSan Co-authored-by: Tim Ruffing --- src/checkmem.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/src/checkmem.h b/src/checkmem.h index 7e333ce5f3..08eae47d78 100644 --- a/src/checkmem.h +++ b/src/checkmem.h @@ -48,7 +48,17 @@ # if __has_feature(memory_sanitizer) # include # define SECP256K1_CHECKMEM_ENABLED 1 -# define SECP256K1_CHECKMEM_UNDEFINE(p, len) __msan_allocated_memory((p), (len)) +# if defined(__clang__) && ((__clang_major__ == 21 && __clang_minor__ >= 1) || __clang_major__ >= 22) +# define SECP256K1_CHECKMEM_UNDEFINE(p, len) do { \ + /* Work around https://github.com/llvm/llvm-project/issues/160094 */ \ + _Pragma("clang diagnostic push") \ + _Pragma("clang diagnostic ignored \"-Wuninitialized-const-pointer\"") \ + __msan_allocated_memory((p), (len)); \ + _Pragma("clang diagnostic pop") \ + } while(0) +# else +# define SECP256K1_CHECKMEM_UNDEFINE(p, len) __msan_allocated_memory((p), (len)) +# endif # define SECP256K1_CHECKMEM_DEFINE(p, len) __msan_unpoison((p), (len)) # define SECP256K1_CHECKMEM_MSAN_DEFINE(p, len) __msan_unpoison((p), (len)) # define SECP256K1_CHECKMEM_CHECK(p, len) __msan_check_mem_is_initialized((p), (len)) From 53585f93b7e6fe3933c77216f45e7d4f785436b5 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 11:19:45 +0100 Subject: [PATCH 539/557] ci: Use clang-snapshot in "MSan" job --- .github/workflows/ci.yml | 5 ++++- ci/linux-debian.Dockerfile | 2 +- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index f22ef2a3c0..ad3568d1ea 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -417,6 +417,9 @@ jobs: # when ctime_tests when enabled. CFLAGS: '-fsanitize=memory -fsanitize-recover=memory -fsanitize-memory-param-retval -g' CTIMETESTS: 'no' + cc: + - 'clang' + - 'clang-snapshot' env: ECDH: 'yes' @@ -425,7 +428,7 @@ jobs: SCHNORRSIG: 'yes' MUSIG: 'yes' ELLSWIFT: 'yes' - CC: 'clang' + CC: ${{ matrix.cc }} SECP256K1_TEST_ITERS: 32 ASM: 'no' WITH_VALGRIND: 'no' diff --git a/ci/linux-debian.Dockerfile b/ci/linux-debian.Dockerfile index 22b6d35c92..a575d9b1c4 100644 --- a/ci/linux-debian.Dockerfile +++ b/ci/linux-debian.Dockerfile @@ -71,7 +71,7 @@ RUN \ # Determine the version number of the LLVM development branch LLVM_VERSION=$(apt-cache search --names-only '^clang-[0-9]+$' | sort -V | tail -1 | cut -f1 -d" " | cut -f2 -d"-" ) && \ # Install - DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y "clang-${LLVM_VERSION}" && \ + DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y "clang-${LLVM_VERSION}" "libclang-rt-${LLVM_VERSION}-dev" && \ # Create symlink ln -s "/usr/bin/clang-${LLVM_VERSION}" /usr/bin/clang-snapshot && \ # Clean up From 574c2f3080eeb65995a1c1a430ed7f84803afd26 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 11:47:23 +0100 Subject: [PATCH 540/557] ci: Use YAML anchor and aliases for repeated "Checkout" steps --- .github/workflows/ci.yml | 54 ++++++++++++++-------------------------- 1 file changed, 19 insertions(+), 35 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index f22ef2a3c0..4e0a028c5f 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -107,7 +107,8 @@ jobs: CC: ${{ matrix.cc }} steps: - - name: Checkout + - &CHECKOUT + name: Checkout uses: actions/checkout@v4 - name: CI script @@ -143,8 +144,7 @@ jobs: CC: ${{ matrix.cc }} steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script uses: ./.github/actions/run-in-docker-action @@ -174,8 +174,7 @@ jobs: CTIMETESTS: 'no' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script uses: ./.github/actions/run-in-docker-action @@ -213,8 +212,7 @@ jobs: CTIMETESTS: 'no' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -253,8 +251,7 @@ jobs: - 'clang-snapshot' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script uses: ./.github/actions/run-in-docker-action @@ -284,8 +281,7 @@ jobs: CTIMETESTS: 'no' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script uses: ./.github/actions/run-in-docker-action @@ -339,8 +335,7 @@ jobs: SECP256K1_TEST_ITERS: 2 steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script env: ${{ matrix.env_vars }} @@ -382,8 +377,7 @@ jobs: SYMBOL_CHECK: 'no' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -432,8 +426,7 @@ jobs: SYMBOL_CHECK: 'no' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -474,8 +467,7 @@ jobs: HOST: 'i686-w64-mingw32' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script env: ${{ matrix.configuration.env_vars }} @@ -514,8 +506,7 @@ jobs: - BUILD: 'distcheck' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: Install Homebrew packages run: | @@ -566,8 +557,7 @@ jobs: - BUILD: 'distcheck' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: Install Homebrew packages run: | @@ -626,8 +616,7 @@ jobs: cpp_flags: '/DSECP256K1_MSVC_MULH_TEST_OVERRIDE' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: Generate buildsystem run: cmake -E env CFLAGS="/WX ${{ matrix.configuration.cpp_flags }}" cmake -B build -DSECP256K1_ENABLE_MODULE_RECOVERY=ON -DSECP256K1_BUILD_EXAMPLES=ON ${{ matrix.configuration.cmake_options }} @@ -662,8 +651,7 @@ jobs: runs-on: windows-2022 steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: Add cl.exe to PATH uses: ilammy/msvc-dev-cmd@v1 @@ -690,8 +678,7 @@ jobs: ELLSWIFT: 'yes' steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script uses: ./.github/actions/run-in-docker-action @@ -708,8 +695,7 @@ jobs: needs: docker_cache steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script uses: ./.github/actions/run-in-docker-action @@ -727,8 +713,7 @@ jobs: options: --user root steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - name: CI script run: | @@ -739,8 +724,7 @@ jobs: runs-on: ubuntu-latest steps: - - name: Checkout - uses: actions/checkout@v4 + - *CHECKOUT - run: ./autogen.sh && ./configure --enable-dev-mode && make distcheck From a889cd93dfe5558aaa0320e241555bb96483c92b Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 11:49:05 +0100 Subject: [PATCH 541/557] ci: Bump `actions/checkout` version See https://github.com/actions/checkout/releases. --- .github/workflows/ci.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 4e0a028c5f..6f7b51dd6c 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -109,7 +109,7 @@ jobs: steps: - &CHECKOUT name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 - name: CI script env: ${{ matrix.configuration.env_vars }} From 4b644da199587cdf9554fb48c0da7643c3ce7f30 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 11:51:22 +0100 Subject: [PATCH 542/557] ci: Use YAML anchor and aliases for repeated "Print logs" steps --- .github/workflows/ci.yml | 55 ++++++++++------------------------------ 1 file changed, 14 insertions(+), 41 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 6f7b51dd6c..7195b7dafd 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -117,7 +117,8 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs + - &PRINT_LOGS + name: Print logs uses: ./.github/actions/print-logs if: ${{ !cancelled() }} @@ -151,9 +152,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS s390x_debian: name: "s390x (big-endian): Linux (Debian stable, QEMU)" @@ -181,10 +180,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} - + - *PRINT_LOGS arm32_debian: name: "ARM32: Linux (Debian stable, QEMU)" @@ -220,9 +216,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS arm64-debian: name: "arm64: Linux (Debian stable)" @@ -258,9 +252,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS ppc64le_debian: name: "ppc64le: Linux (Debian stable, QEMU)" @@ -288,10 +280,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} - + - *PRINT_LOGS valgrind_debian: name: "Valgrind ${{ matrix.binary_arch }} (memcheck)" @@ -343,9 +332,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS sanitizers_debian: name: "UBSan, ASan, LSan" @@ -385,9 +372,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS msan_debian: name: "MSan" @@ -434,10 +419,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} - + - *PRINT_LOGS mingw_debian: name: ${{ matrix.configuration.job_name }} @@ -475,9 +457,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS x86_64-macos-native: name: "x86_64: macOS Ventura, Valgrind" @@ -526,9 +506,7 @@ jobs: python3 -m pip install lief python3 ./tools/symbol-check.py .libs/libsecp256k1.dylib - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS arm64-macos-native: name: "ARM64: macOS Sonoma" @@ -578,10 +556,7 @@ jobs: python3 -m pip install lief python3 ./tools/symbol-check.py .libs/libsecp256k1.dylib - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} - + - *PRINT_LOGS win64-native: name: ${{ matrix.configuration.job_name }} @@ -685,9 +660,7 @@ jobs: with: dockerfile: ./ci/linux-debian.Dockerfile - - name: Print logs - uses: ./.github/actions/print-logs - if: ${{ !cancelled() }} + - *PRINT_LOGS cxx_headers_debian: name: "C++ (public headers)" From dff1bc107d593b12e824cbc04b0d220f2ffeb967 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 12:23:54 +0100 Subject: [PATCH 543/557] ci, refactor: Generalize use of `matrix.configuration.env_vars` --- .github/workflows/ci.yml | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 7195b7dafd..07a574d058 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -130,6 +130,8 @@ jobs: strategy: fail-fast: false matrix: + configuration: + - env_vars: {} cc: - 'i686-linux-gnu-gcc' - 'clang --target=i686-pc-linux-gnu -isystem /usr/i686-linux-gnu/include' @@ -148,6 +150,7 @@ jobs: - *CHECKOUT - name: CI script + env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile @@ -159,6 +162,11 @@ jobs: runs-on: ubuntu-latest needs: docker_cache + strategy: + matrix: + configuration: + - env_vars: {} + env: WRAPPER_CMD: 'qemu-s390x' SECP256K1_TEST_ITERS: 16 @@ -176,6 +184,7 @@ jobs: - *CHECKOUT - name: CI script + env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile @@ -238,6 +247,8 @@ jobs: strategy: fail-fast: false matrix: + configuration: + - env_vars: {} cc: - 'gcc' - 'clang' @@ -248,6 +259,7 @@ jobs: - *CHECKOUT - name: CI script + env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile @@ -259,6 +271,11 @@ jobs: runs-on: ubuntu-latest needs: docker_cache + strategy: + matrix: + configuration: + - env_vars: {} + env: WRAPPER_CMD: 'qemu-ppc64le' SECP256K1_TEST_ITERS: 16 @@ -276,6 +293,7 @@ jobs: - *CHECKOUT - name: CI script + env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile @@ -283,14 +301,14 @@ jobs: - *PRINT_LOGS valgrind_debian: - name: "Valgrind ${{ matrix.binary_arch }} (memcheck)" - runs-on: ${{ matrix.runner }} + name: "Valgrind ${{ matrix.configuration.binary_arch }} (memcheck)" + runs-on: ${{ matrix.configuration.runner }} needs: docker_cache strategy: fail-fast: false matrix: - include: + configuration: - runner: ubuntu-latest binary_arch: x64 env_vars: { CC: 'clang', ASM: 'auto' } @@ -327,7 +345,7 @@ jobs: - *CHECKOUT - name: CI script - env: ${{ matrix.env_vars }} + env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile @@ -640,6 +658,11 @@ jobs: runs-on: ubuntu-latest needs: docker_cache + strategy: + matrix: + configuration: + - env_vars: {} + env: CC: 'g++' CFLAGS: '-fpermissive -g' @@ -656,6 +679,7 @@ jobs: - *CHECKOUT - name: CI script + env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile From 1decc49a1f08564064420468fc48b9aebd3989d3 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 12:24:25 +0100 Subject: [PATCH 544/557] ci: Use YAML anchor and aliases for repeated "CI script" steps --- .github/workflows/ci.yml | 90 +++++++--------------------------------- 1 file changed, 15 insertions(+), 75 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 07a574d058..832729415a 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -111,7 +111,8 @@ jobs: name: Checkout uses: actions/checkout@v5 - - name: CI script + - &CI_SCRIPT_IN_DOCKER + name: CI script env: ${{ matrix.configuration.env_vars }} uses: ./.github/actions/run-in-docker-action with: @@ -148,13 +149,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS s390x_debian: @@ -182,13 +177,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS arm32_debian: @@ -218,13 +207,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS arm64-debian: @@ -257,13 +240,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS ppc64le_debian: @@ -291,13 +268,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS valgrind_debian: @@ -343,13 +314,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS sanitizers_debian: @@ -383,13 +348,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS msan_debian: @@ -430,13 +389,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS mingw_debian: @@ -468,13 +421,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS x86_64-macos-native: @@ -514,7 +461,8 @@ jobs: - name: Install and cache Valgrind uses: ./.github/actions/install-homebrew-valgrind - - name: CI script + - &CI_SCRIPT_ON_HOST + name: CI script env: ${{ matrix.env_vars }} run: ./ci/ci.sh @@ -560,9 +508,7 @@ jobs: brew install --quiet automake libtool gcc ln -s $(brew --prefix gcc)/bin/gcc-?? /usr/local/bin/gcc - - name: CI script - env: ${{ matrix.env_vars }} - run: ./ci/ci.sh + - *CI_SCRIPT_ON_HOST - name: Symbol check env: @@ -677,13 +623,7 @@ jobs: steps: - *CHECKOUT - - - name: CI script - env: ${{ matrix.configuration.env_vars }} - uses: ./.github/actions/run-in-docker-action - with: - dockerfile: ./ci/linux-debian.Dockerfile - + - *CI_SCRIPT_IN_DOCKER - *PRINT_LOGS cxx_headers_debian: From 15d014804e5927b0f9dd8ed4fdc0be2a45f74e24 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Tue, 14 Oct 2025 12:24:36 +0100 Subject: [PATCH 545/557] ci: Drop default for `inputs.command` in `run-in-docker-action` This change decreases coupling. --- .github/actions/run-in-docker-action/action.yml | 3 +-- .github/workflows/ci.yml | 1 + 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/actions/run-in-docker-action/action.yml b/.github/actions/run-in-docker-action/action.yml index d3ab44b188..5d46ca1b01 100644 --- a/.github/actions/run-in-docker-action/action.yml +++ b/.github/actions/run-in-docker-action/action.yml @@ -10,8 +10,7 @@ inputs: default: ${{ runner.arch }} command: description: 'A command to run in a container' - required: false - default: ./ci/ci.sh + required: true runs: using: "composite" steps: diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 832729415a..8508224e05 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -117,6 +117,7 @@ jobs: uses: ./.github/actions/run-in-docker-action with: dockerfile: ./ci/linux-debian.Dockerfile + command: ./ci/ci.sh - &PRINT_LOGS name: Print logs From c09519f0e383da3c36e33522ca8708c17103d96a Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 15 Oct 2025 15:20:38 +0100 Subject: [PATCH 546/557] ci: Drop workaround for Valgrind older than 3.20.0 --- ci/ci.sh | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/ci/ci.sh b/ci/ci.sh index 08e84efd4f..515c14cd04 100755 --- a/ci/ci.sh +++ b/ci/ci.sh @@ -52,22 +52,6 @@ if [ -n "$WRAPPER_CMD" ]; then $WRAPPER_CMD --version fi -# Workaround for https://bugs.kde.org/show_bug.cgi?id=452758 (fixed in valgrind 3.20.0). -case "${CC:-undefined}" in - clang*) - if [ "$CTIMETESTS" = "yes" ] && [ "$WITH_VALGRIND" = "yes" ] - then - export CFLAGS="${CFLAGS:+$CFLAGS }-gdwarf-4" - else - case "$WRAPPER_CMD" in - valgrind*) - export CFLAGS="${CFLAGS:+$CFLAGS }-gdwarf-4" - ;; - esac - fi - ;; -esac - ./autogen.sh ./configure \ From 8bc50b72ff600f1b3cc05003c2de35a355512aab Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Wed, 15 Oct 2025 15:31:21 +0100 Subject: [PATCH 547/557] ci: Switch to macOS 15 Sequoia Intel-based image The `macos-13` image has been deprecated and will be unavailable soon. See: https://github.com/actions/runner-images/issues/13045. --- .github/workflows/ci.yml | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index dceab4f8ab..6176751594 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -429,9 +429,8 @@ jobs: - *PRINT_LOGS x86_64-macos-native: - name: "x86_64: macOS Ventura, Valgrind" - # See: https://github.com/actions/runner-images#available-images. - runs-on: macos-13 + name: "x86_64: macOS Sequoia, Valgrind" + runs-on: macos-15-intel env: CC: 'clang' From 26166c4f5fd5688c31e488449ee2325eb8f2fb36 Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Fri, 17 Oct 2025 14:18:42 +0000 Subject: [PATCH 548/557] ecmult_multi: reduce strauss memory usage by 30% --- src/ecmult_impl.h | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h index 0b53b3fcb9..29f02f547f 100644 --- a/src/ecmult_impl.h +++ b/src/ecmult_impl.h @@ -220,9 +220,24 @@ static int secp256k1_ecmult_wnaf(int *wnaf, int len, const secp256k1_scalar *a, return last_set_bit + 1; } +/* Same as secp256k1_ecmult_wnaf, but stores to int8_t array. Requires w <= 8. */ +static int secp256k1_ecmult_wnaf_small(int8_t *wnaf, int len, const secp256k1_scalar *a, int w) { + int wnaf_tmp[256]; + int ret, i; + + VERIFY_CHECK(2 <= w && w <= 8); + ret = secp256k1_ecmult_wnaf(wnaf_tmp, len, a, w); + + for (i = 0; i < len; i++) { + wnaf[i] = (int8_t)wnaf_tmp[i]; + } + + return ret; +} + struct secp256k1_strauss_point_state { - int wnaf_na_1[129]; - int wnaf_na_lam[129]; + int8_t wnaf_na_1[129]; + int8_t wnaf_na_lam[129]; int bits_na_1; int bits_na_lam; }; @@ -259,8 +274,8 @@ static void secp256k1_ecmult_strauss_wnaf(const struct secp256k1_strauss_state * secp256k1_scalar_split_lambda(&na_1, &na_lam, &na[np]); /* build wnaf representation for na_1 and na_lam. */ - state->ps[no].bits_na_1 = secp256k1_ecmult_wnaf(state->ps[no].wnaf_na_1, 129, &na_1, WINDOW_A); - state->ps[no].bits_na_lam = secp256k1_ecmult_wnaf(state->ps[no].wnaf_na_lam, 129, &na_lam, WINDOW_A); + state->ps[no].bits_na_1 = secp256k1_ecmult_wnaf_small(state->ps[no].wnaf_na_1, 129, &na_1, WINDOW_A); + state->ps[no].bits_na_lam = secp256k1_ecmult_wnaf_small(state->ps[no].wnaf_na_lam, 129, &na_lam, WINDOW_A); VERIFY_CHECK(state->ps[no].bits_na_1 <= 129); VERIFY_CHECK(state->ps[no].bits_na_lam <= 129); if (state->ps[no].bits_na_1 > bits) { From 153eea20c2527252c4a1785869def7bc052435d0 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Mon, 27 Oct 2025 14:04:51 +0000 Subject: [PATCH 549/557] bench: Use `ALIGNMENT` macro instead of hardcoded value --- src/bench_ecmult.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/bench_ecmult.c b/src/bench_ecmult.c index b2bab65d26..c9a1d90026 100644 --- a/src/bench_ecmult.c +++ b/src/bench_ecmult.c @@ -334,7 +334,7 @@ int main(int argc, char **argv) { } data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); - scratch_size = secp256k1_strauss_scratch_size(POINTS) + STRAUSS_SCRATCH_OBJECTS*16; + scratch_size = secp256k1_strauss_scratch_size(POINTS) + STRAUSS_SCRATCH_OBJECTS*ALIGNMENT; if (!have_flag(argc, argv, "simple")) { data.scratch = secp256k1_scratch_space_create(data.ctx, scratch_size); } else { From f252da7e6e1bbd0082fd43c4ffabfa90abafb248 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 7 Nov 2025 14:12:39 +0000 Subject: [PATCH 550/557] ci: Use Python virtual environment in "x86_64-macos-native" job --- .github/workflows/ci.yml | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 6176751594..59d2251497 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -469,9 +469,14 @@ jobs: env: ${{ matrix.env_vars }} run: ./ci/ci.sh - - name: Symbol check + - &SYMBOL_CHECK_MACOS + name: Symbol check + env: + VIRTUAL_ENV: '${{ github.workspace }}/venv' run: | python3 --version + python3 -m venv $VIRTUAL_ENV + export PATH="$VIRTUAL_ENV/bin:$PATH" python3 -m pip install lief python3 ./tools/symbol-check.py .libs/libsecp256k1.dylib @@ -512,17 +517,7 @@ jobs: ln -s $(brew --prefix gcc)/bin/gcc-?? /usr/local/bin/gcc - *CI_SCRIPT_ON_HOST - - - name: Symbol check - env: - VIRTUAL_ENV: '${{ github.workspace }}/venv' - run: | - python3 --version - python3 -m venv $VIRTUAL_ENV - export PATH="$VIRTUAL_ENV/bin:$PATH" - python3 -m pip install lief - python3 ./tools/symbol-check.py .libs/libsecp256k1.dylib - + - *SYMBOL_CHECK_MACOS - *PRINT_LOGS win64-native: From fc7458ca3e28d9eb34427a766122accaa0f36f26 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 17 Nov 2025 16:43:49 +0100 Subject: [PATCH 551/557] introduce `secp256k1_eckey_pubkey_serialize{33,65}` functions --- src/eckey.h | 4 ++++ src/eckey_impl.h | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/src/eckey.h b/src/eckey.h index d54d44c997..3ebe896920 100644 --- a/src/eckey.h +++ b/src/eckey.h @@ -16,6 +16,10 @@ static int secp256k1_eckey_pubkey_parse(secp256k1_ge *elem, const unsigned char *pub, size_t size); static int secp256k1_eckey_pubkey_serialize(secp256k1_ge *elem, unsigned char *pub, size_t *size, int compressed); +/** Serialize a group element (that is not allowed to be infinity) to a compressed public key (33 bytes). */ +static void secp256k1_eckey_pubkey_serialize33(secp256k1_ge *elem, unsigned char *pub33); +/** Serialize a group element (that is not allowed to be infinity) to an uncompressed public key (65 bytes). */ +static void secp256k1_eckey_pubkey_serialize65(secp256k1_ge *elem, unsigned char *pub65); static int secp256k1_eckey_privkey_tweak_add(secp256k1_scalar *key, const secp256k1_scalar *tweak); static int secp256k1_eckey_pubkey_tweak_add(secp256k1_ge *key, const secp256k1_scalar *tweak); diff --git a/src/eckey_impl.h b/src/eckey_impl.h index a88a5964d8..4f647607bd 100644 --- a/src/eckey_impl.h +++ b/src/eckey_impl.h @@ -55,6 +55,25 @@ static int secp256k1_eckey_pubkey_serialize(secp256k1_ge *elem, unsigned char *p return 1; } +static void secp256k1_eckey_pubkey_serialize33(secp256k1_ge *elem, unsigned char *pub33) { + VERIFY_CHECK(!secp256k1_ge_is_infinity(elem)); + + secp256k1_fe_normalize_var(&elem->x); + secp256k1_fe_normalize_var(&elem->y); + pub33[0] = secp256k1_fe_is_odd(&elem->y) ? SECP256K1_TAG_PUBKEY_ODD : SECP256K1_TAG_PUBKEY_EVEN; + secp256k1_fe_get_b32(&pub33[1], &elem->x); +} + +static void secp256k1_eckey_pubkey_serialize65(secp256k1_ge *elem, unsigned char *pub65) { + VERIFY_CHECK(!secp256k1_ge_is_infinity(elem)); + + secp256k1_fe_normalize_var(&elem->x); + secp256k1_fe_normalize_var(&elem->y); + pub65[0] = SECP256K1_TAG_PUBKEY_UNCOMPRESSED; + secp256k1_fe_get_b32(&pub65[1], &elem->x); + secp256k1_fe_get_b32(&pub65[33], &elem->y); +} + static int secp256k1_eckey_privkey_tweak_add(secp256k1_scalar *key, const secp256k1_scalar *tweak) { secp256k1_scalar_add(key, key, tweak); return !secp256k1_scalar_is_zero(key); From adb76f82eadadf4f9df4cd958f7c266b551b50c6 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 17 Nov 2025 16:58:01 +0100 Subject: [PATCH 552/557] use new `_eckey_pubkey_serialize{33,65}` functions in public API --- src/secp256k1.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/secp256k1.c b/src/secp256k1.c index 26336a45cc..c2d3fcbddb 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -280,10 +280,14 @@ int secp256k1_ec_pubkey_serialize(const secp256k1_context* ctx, unsigned char *o ARG_CHECK(pubkey != NULL); ARG_CHECK((flags & SECP256K1_FLAGS_TYPE_MASK) == SECP256K1_FLAGS_TYPE_COMPRESSION); if (secp256k1_pubkey_load(ctx, &Q, pubkey)) { - ret = secp256k1_eckey_pubkey_serialize(&Q, output, &len, !!(flags & SECP256K1_FLAGS_BIT_COMPRESSION)); - if (ret) { - *outputlen = len; + if (flags & SECP256K1_FLAGS_BIT_COMPRESSION) { + secp256k1_eckey_pubkey_serialize33(&Q, output); + *outputlen = 33; + } else { + secp256k1_eckey_pubkey_serialize65(&Q, output); + *outputlen = 65; } + ret = 1; } return ret; } From 0d3659c547bdd5a477346e1ef14be3f98cc08f2e Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 17 Nov 2025 18:13:56 +0100 Subject: [PATCH 553/557] use new `_eckey_pubkey_serialize{33,65}` functions in modules (ellswift,musig) --- src/modules/ellswift/main_impl.h | 9 +-------- src/modules/musig/keyagg_impl.h | 9 +-------- src/modules/musig/session_impl.h | 29 +++-------------------------- 3 files changed, 5 insertions(+), 42 deletions(-) diff --git a/src/modules/ellswift/main_impl.h b/src/modules/ellswift/main_impl.h index 0d13f73422..096f4a3c71 100644 --- a/src/modules/ellswift/main_impl.h +++ b/src/modules/ellswift/main_impl.h @@ -406,19 +406,12 @@ int secp256k1_ellswift_encode(const secp256k1_context *ctx, unsigned char *ell64 if (secp256k1_pubkey_load(ctx, &p, pubkey)) { secp256k1_fe t; unsigned char p64[64] = {0}; - size_t ser_size; - int ser_ret; secp256k1_sha256 hash; /* Set up hasher state; the used RNG is H(pubkey || "\x00"*31 || rnd32 || cnt++), using * BIP340 tagged hash with tag "secp256k1_ellswift_encode". */ secp256k1_ellswift_sha256_init_encode(&hash); - ser_ret = secp256k1_eckey_pubkey_serialize(&p, p64, &ser_size, 1); -#ifdef VERIFY - VERIFY_CHECK(ser_ret && ser_size == 33); -#else - (void)ser_ret; -#endif + secp256k1_eckey_pubkey_serialize33(&p, p64); secp256k1_sha256_write(&hash, p64, sizeof(p64)); secp256k1_sha256_write(&hash, rnd32, 32); diff --git a/src/modules/musig/keyagg_impl.h b/src/modules/musig/keyagg_impl.h index 0db4fce859..87869a4105 100644 --- a/src/modules/musig/keyagg_impl.h +++ b/src/modules/musig/keyagg_impl.h @@ -124,18 +124,11 @@ static void secp256k1_musig_keyaggcoef_internal(secp256k1_scalar *r, const unsig } else { secp256k1_sha256 sha; unsigned char buf[33]; - size_t buflen = sizeof(buf); - int ret; secp256k1_musig_keyaggcoef_sha256(&sha); secp256k1_sha256_write(&sha, pks_hash, 32); - ret = secp256k1_eckey_pubkey_serialize(pk, buf, &buflen, 1); -#ifdef VERIFY /* Serialization does not fail since the pk is not the point at infinity * (according to this function's precondition). */ - VERIFY_CHECK(ret && buflen == sizeof(buf)); -#else - (void) ret; -#endif + secp256k1_eckey_pubkey_serialize33(pk, buf); secp256k1_sha256_write(&sha, buf, sizeof(buf)); secp256k1_sha256_finalize(&sha, buf); secp256k1_scalar_set_b32(r, buf, NULL); diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index 2c8778b3c0..6a80a27b38 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -25,15 +25,8 @@ static void secp256k1_musig_ge_serialize_ext(unsigned char *out33, secp256k1_ge* if (secp256k1_ge_is_infinity(ge)) { memset(out33, 0, 33); } else { - int ret; - size_t size = 33; - ret = secp256k1_eckey_pubkey_serialize(ge, out33, &size, 1); -#ifdef VERIFY /* Serialize must succeed because the point is not at infinity */ - VERIFY_CHECK(ret && size == 33); -#else - (void) ret; -#endif + secp256k1_eckey_pubkey_serialize33(ge, out33); } } @@ -224,15 +217,8 @@ int secp256k1_musig_pubnonce_serialize(const secp256k1_context* ctx, unsigned ch return 0; } for (i = 0; i < 2; i++) { - int ret; - size_t size = 33; - ret = secp256k1_eckey_pubkey_serialize(&ges[i], &out66[33*i], &size, 1); -#ifdef VERIFY /* serialize must succeed because the point was just loaded */ - VERIFY_CHECK(ret && size == 33); -#else - (void) ret; -#endif + secp256k1_eckey_pubkey_serialize33(&ges[i], &out66[33*i]); } return 1; } @@ -398,11 +384,9 @@ static int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp secp256k1_gej nonce_ptj[2]; int i; unsigned char pk_ser[33]; - size_t pk_ser_len = sizeof(pk_ser); unsigned char aggpk_ser[32]; unsigned char *aggpk_ser_ptr = NULL; secp256k1_ge pk; - int pk_serialize_success; int ret = 1; ARG_CHECK(pubnonce != NULL); @@ -429,15 +413,8 @@ static int secp256k1_musig_nonce_gen_internal(const secp256k1_context* ctx, secp if (!secp256k1_pubkey_load(ctx, &pk, pubkey)) { return 0; } - pk_serialize_success = secp256k1_eckey_pubkey_serialize(&pk, pk_ser, &pk_ser_len, 1); - -#ifdef VERIFY /* A pubkey cannot be the point at infinity */ - VERIFY_CHECK(pk_serialize_success); - VERIFY_CHECK(pk_ser_len == sizeof(pk_ser)); -#else - (void) pk_serialize_success; -#endif + secp256k1_eckey_pubkey_serialize33(&pk, pk_ser); secp256k1_nonce_function_musig(k, input_nonce, msg32, seckey, pk_ser, aggpk_ser_ptr, extra_input32); VERIFY_CHECK(!secp256k1_scalar_is_zero(&k[0])); From f5e815f4306ea1763d27d83646b4f06e3d2f0b94 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Mon, 17 Nov 2025 18:35:32 +0100 Subject: [PATCH 554/557] remove secp256k1_eckey_pubkey_serialize function --- src/eckey.h | 1 - src/eckey_impl.h | 20 -------------------- src/tests.c | 23 +++++++++-------------- 3 files changed, 9 insertions(+), 35 deletions(-) diff --git a/src/eckey.h b/src/eckey.h index 3ebe896920..c2bbc4703e 100644 --- a/src/eckey.h +++ b/src/eckey.h @@ -15,7 +15,6 @@ #include "ecmult_gen.h" static int secp256k1_eckey_pubkey_parse(secp256k1_ge *elem, const unsigned char *pub, size_t size); -static int secp256k1_eckey_pubkey_serialize(secp256k1_ge *elem, unsigned char *pub, size_t *size, int compressed); /** Serialize a group element (that is not allowed to be infinity) to a compressed public key (33 bytes). */ static void secp256k1_eckey_pubkey_serialize33(secp256k1_ge *elem, unsigned char *pub33); /** Serialize a group element (that is not allowed to be infinity) to an uncompressed public key (65 bytes). */ diff --git a/src/eckey_impl.h b/src/eckey_impl.h index 4f647607bd..48745e8fe7 100644 --- a/src/eckey_impl.h +++ b/src/eckey_impl.h @@ -35,26 +35,6 @@ static int secp256k1_eckey_pubkey_parse(secp256k1_ge *elem, const unsigned char } } -static int secp256k1_eckey_pubkey_serialize(secp256k1_ge *elem, unsigned char *pub, size_t *size, int compressed) { - VERIFY_CHECK(compressed == 0 || compressed == 1); - - if (secp256k1_ge_is_infinity(elem)) { - return 0; - } - secp256k1_fe_normalize_var(&elem->x); - secp256k1_fe_normalize_var(&elem->y); - secp256k1_fe_get_b32(&pub[1], &elem->x); - if (compressed) { - *size = 33; - pub[0] = secp256k1_fe_is_odd(&elem->y) ? SECP256K1_TAG_PUBKEY_ODD : SECP256K1_TAG_PUBKEY_EVEN; - } else { - *size = 65; - pub[0] = SECP256K1_TAG_PUBKEY_UNCOMPRESSED; - secp256k1_fe_get_b32(&pub[33], &elem->y); - } - return 1; -} - static void secp256k1_eckey_pubkey_serialize33(secp256k1_ge *elem, unsigned char *pub33) { VERIFY_CHECK(!secp256k1_ge_is_infinity(elem)); diff --git a/src/tests.c b/src/tests.c index 0ccdbeecf7..4029de5651 100644 --- a/src/tests.c +++ b/src/tests.c @@ -4315,8 +4315,6 @@ static void test_point_times_order(const secp256k1_gej *point) { secp256k1_scalar nx; secp256k1_gej res1, res2; secp256k1_ge res3; - unsigned char pub[65]; - size_t psize = 65; testutil_random_scalar_order_test(&x); secp256k1_scalar_negate(&nx, &x); secp256k1_ecmult(&res1, point, &x, &x); /* calc res1 = x * point + x * G; */ @@ -4326,9 +4324,6 @@ static void test_point_times_order(const secp256k1_gej *point) { secp256k1_ge_set_gej(&res3, &res1); CHECK(secp256k1_ge_is_infinity(&res3)); CHECK(secp256k1_ge_is_valid_var(&res3) == 0); - CHECK(secp256k1_eckey_pubkey_serialize(&res3, pub, &psize, 0) == 0); - psize = 65; - CHECK(secp256k1_eckey_pubkey_serialize(&res3, pub, &psize, 1) == 0); /* check zero/one edge cases */ secp256k1_ecmult(&res1, point, &secp256k1_scalar_zero, &secp256k1_scalar_zero); secp256k1_ge_set_gej(&res3, &res1); @@ -5435,7 +5430,6 @@ static void test_ecmult_accumulate(secp256k1_sha256* acc, const secp256k1_scalar secp256k1_gej rj1, rj2, rj3, rj4, rj5, rj6, gj, infj; secp256k1_ge r; unsigned char bytes[65]; - size_t size = 65; secp256k1_gej_set_ge(&gj, &secp256k1_ge_const_g); secp256k1_gej_set_infinity(&infj); secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &rj1, x); @@ -5456,9 +5450,8 @@ static void test_ecmult_accumulate(secp256k1_sha256* acc, const secp256k1_scalar secp256k1_sha256_write(acc, zerobyte, 1); } else { /* Store other points using their uncompressed serialization. */ - secp256k1_eckey_pubkey_serialize(&r, bytes, &size, 0); - CHECK(size == 65); - secp256k1_sha256_write(acc, bytes, size); + secp256k1_eckey_pubkey_serialize65(&r, bytes); + secp256k1_sha256_write(acc, bytes, sizeof(bytes)); } } @@ -6543,16 +6536,18 @@ static void test_random_pubkeys(void) { size_t size = len; firstb = in[0]; /* If the pubkey can be parsed, it should round-trip... */ - CHECK(secp256k1_eckey_pubkey_serialize(&elem, out, &size, len == 33)); - CHECK(size == len); + if (len == 33) { + secp256k1_eckey_pubkey_serialize33(&elem, out); + } else { + secp256k1_eckey_pubkey_serialize65(&elem, out); + } CHECK(secp256k1_memcmp_var(&in[1], &out[1], len-1) == 0); /* ... except for the type of hybrid inputs. */ if ((in[0] != 6) && (in[0] != 7)) { CHECK(in[0] == out[0]); } size = 65; - CHECK(secp256k1_eckey_pubkey_serialize(&elem, in, &size, 0)); - CHECK(size == 65); + secp256k1_eckey_pubkey_serialize65(&elem, in); CHECK(secp256k1_eckey_pubkey_parse(&elem2, in, size)); CHECK(secp256k1_ge_eq_var(&elem2, &elem)); /* Check that the X9.62 hybrid type is checked. */ @@ -6567,7 +6562,7 @@ static void test_random_pubkeys(void) { } if (res) { CHECK(secp256k1_ge_eq_var(&elem, &elem2)); - CHECK(secp256k1_eckey_pubkey_serialize(&elem, out, &size, 0)); + secp256k1_eckey_pubkey_serialize65(&elem, out); CHECK(secp256k1_memcmp_var(&in[1], &out[1], 64) == 0); } } From 5a08c1bcdc958f264450e771d7923922526f74f1 Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Sat, 6 Dec 2025 01:04:18 +0100 Subject: [PATCH 555/557] Add ARG_CHECKs to ensure "array of pointers" elements are non-NULL --- src/modules/musig/keyagg_impl.h | 3 +++ src/modules/musig/session_impl.h | 8 ++++++++ src/secp256k1.c | 5 +++++ 3 files changed, 16 insertions(+) diff --git a/src/modules/musig/keyagg_impl.h b/src/modules/musig/keyagg_impl.h index 87869a4105..e412a27eca 100644 --- a/src/modules/musig/keyagg_impl.h +++ b/src/modules/musig/keyagg_impl.h @@ -177,6 +177,9 @@ int secp256k1_musig_pubkey_agg(const secp256k1_context* ctx, secp256k1_xonly_pub } ARG_CHECK(pubkeys != NULL); ARG_CHECK(n_pubkeys > 0); + for (i = 0; i < n_pubkeys; i++) { + ARG_CHECK(pubkeys[i] != NULL); + } ecmult_data.ctx = ctx; ecmult_data.pks = pubkeys; diff --git a/src/modules/musig/session_impl.h b/src/modules/musig/session_impl.h index 6a80a27b38..4a245ada5f 100644 --- a/src/modules/musig/session_impl.h +++ b/src/modules/musig/session_impl.h @@ -521,10 +521,15 @@ static int secp256k1_musig_sum_pubnonces(const secp256k1_context* ctx, secp256k1 int secp256k1_musig_nonce_agg(const secp256k1_context* ctx, secp256k1_musig_aggnonce *aggnonce, const secp256k1_musig_pubnonce * const* pubnonces, size_t n_pubnonces) { secp256k1_gej aggnonce_ptsj[2]; secp256k1_ge aggnonce_pts[2]; + size_t i; + VERIFY_CHECK(ctx != NULL); ARG_CHECK(aggnonce != NULL); ARG_CHECK(pubnonces != NULL); ARG_CHECK(n_pubnonces > 0); + for (i = 0; i < n_pubnonces; i++) { + ARG_CHECK(pubnonces[i] != NULL); + } if (!secp256k1_musig_sum_pubnonces(ctx, aggnonce_ptsj, pubnonces, n_pubnonces)) { return 0; @@ -782,6 +787,9 @@ int secp256k1_musig_partial_sig_agg(const secp256k1_context* ctx, unsigned char ARG_CHECK(session != NULL); ARG_CHECK(partial_sigs != NULL); ARG_CHECK(n_sigs > 0); + for (i = 0; i < n_sigs; i++) { + ARG_CHECK(partial_sigs[i] != NULL); + } if (!secp256k1_musig_session_load(ctx, &session_i, session)) { return 0; diff --git a/src/secp256k1.c b/src/secp256k1.c index c2d3fcbddb..bce06d37fb 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -325,8 +325,13 @@ static int secp256k1_ec_pubkey_sort_cmp(const void* pk1, const void* pk2, void * } int secp256k1_ec_pubkey_sort(const secp256k1_context* ctx, const secp256k1_pubkey **pubkeys, size_t n_pubkeys) { + size_t i; + VERIFY_CHECK(ctx != NULL); ARG_CHECK(pubkeys != NULL); + for (i = 0; i < n_pubkeys; i++) { + ARG_CHECK(pubkeys[i] != NULL); + } /* Suppress wrong warning (fixed in MSVC 19.33) */ #if defined(_MSC_VER) && (_MSC_VER < 1933) From 8bcda186d20e11ba9a04e6917928f062513b534f Mon Sep 17 00:00:00 2001 From: Sebastian Falbesoner Date: Tue, 9 Dec 2025 01:30:56 +0100 Subject: [PATCH 556/557] test: Add non-NULL checks for "pointer of array" API functions --- src/modules/musig/tests_impl.h | 21 +++++++++++++++++++++ src/tests.c | 17 +++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/src/modules/musig/tests_impl.h b/src/modules/musig/tests_impl.h index b4ba185494..de09c5e280 100644 --- a/src/modules/musig/tests_impl.h +++ b/src/modules/musig/tests_impl.h @@ -201,6 +201,13 @@ static void musig_api_tests(void) { CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 2) == 1); CHECK(secp256k1_musig_pubkey_agg(CTX, NULL, &keyagg_cache, pk_ptr, 2) == 1); CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, NULL, pk_ptr, 2) == 1); + /* check that NULL in array of public key pointers is not allowed */ + for (i = 0; i < 2; i++) { + const secp256k1_pubkey *original_ptr = pk_ptr[i]; + pk_ptr[i] = NULL; + CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, NULL, pk_ptr, 2)); + pk_ptr[i] = original_ptr; + } CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, NULL, 2)); CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0); CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, invalid_pk_ptr2, 2)); @@ -350,6 +357,13 @@ static void musig_api_tests(void) { /** Receive nonces and aggregate **/ CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1); + /* check that NULL in array of public nonce pointers is not allowed */ + for (i = 0; i < 2; i++) { + const secp256k1_musig_pubnonce *original_ptr = pubnonce_ptr[i]; + pubnonce_ptr[i] = NULL; + CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2)); + pubnonce_ptr[i] = original_ptr; + } CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, NULL, pubnonce_ptr, 2)); CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, NULL, 2)); CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 0)); @@ -474,6 +488,13 @@ static void musig_api_tests(void) { /** Signature aggregation and verification */ CHECK(secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 2) == 1); + /* check that NULL in array of partial signature pointers is not allowed */ + for (i = 0; i < 2; i++) { + const secp256k1_musig_partial_sig *original_ptr = partial_sig_ptr[i]; + partial_sig_ptr[i] = NULL; + CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 2)); + partial_sig_ptr[i] = original_ptr; + } CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, NULL, &session, partial_sig_ptr, 2)); CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, NULL, partial_sig_ptr, 2)); CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &invalid_session, partial_sig_ptr, 2)); diff --git a/src/tests.c b/src/tests.c index 4029de5651..14aa785895 100644 --- a/src/tests.c +++ b/src/tests.c @@ -6052,6 +6052,7 @@ static void run_eckey_edge_case_test(void) { secp256k1_pubkey pubkey_negone; const secp256k1_pubkey *pubkeys[3]; size_t len; + int i; /* Group order is too large, reject. */ CHECK(secp256k1_ec_seckey_verify(CTX, orderc) == 0); SECP256K1_CHECKMEM_UNDEFINE(&pubkey, sizeof(pubkey)); @@ -6245,6 +6246,14 @@ static void run_eckey_edge_case_test(void) { CHECK(secp256k1_ec_pubkey_combine(CTX, &pubkey, pubkeys, 3) == 1); SECP256K1_CHECKMEM_CHECK(&pubkey, sizeof(secp256k1_pubkey)); CHECK(secp256k1_memcmp_var(&pubkey, zeros, sizeof(secp256k1_pubkey)) > 0); + /* check that NULL in array of pubkey pointers is not allowed */ + for (i = 0; i < 3; i++) { + const secp256k1_pubkey *original_ptr = pubkeys[i]; + secp256k1_pubkey result; + pubkeys[i] = NULL; + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_combine(CTX, &result, pubkeys, 3)); + pubkeys[i] = original_ptr; + } len = 33; CHECK(secp256k1_ec_pubkey_serialize(CTX, ctmp, &len, &pubkey, SECP256K1_EC_COMPRESSED) == 1); CHECK(secp256k1_ec_pubkey_serialize(CTX, ctmp2, &len, &pubkey_one, SECP256K1_EC_COMPRESSED) == 1); @@ -6640,6 +6649,7 @@ static void permute(size_t *arr, size_t n) { static void test_sort_api(void) { secp256k1_pubkey pks[2]; const secp256k1_pubkey *pks_ptr[2]; + int i; pks_ptr[0] = &pks[0]; pks_ptr[1] = &pks[1]; @@ -6648,6 +6658,13 @@ static void test_sort_api(void) { testutil_random_pubkey_test(&pks[1]); CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, 2) == 1); + /* check that NULL in array of public key pointers is not allowed */ + for (i = 0; i < 2; i++) { + const secp256k1_pubkey *original_ptr = pks_ptr[i]; + pks_ptr[i] = NULL; + CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_sort(CTX, pks_ptr, 2)); + pks_ptr[i] = original_ptr; + } CHECK_ILLEGAL(CTX, secp256k1_ec_pubkey_sort(CTX, NULL, 2)); CHECK(secp256k1_ec_pubkey_sort(CTX, pks_ptr, 0) == 1); /* Test illegal public keys */ From 3daab83a6050805763da5ac9ebe8217d1965eb0c Mon Sep 17 00:00:00 2001 From: kevkevinpal Date: Tue, 9 Dec 2025 16:08:35 -0500 Subject: [PATCH 557/557] refactor: remove ret from secp256k1_ec_pubkey_serialize --- src/secp256k1.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/secp256k1.c b/src/secp256k1.c index c2d3fcbddb..7d6b9bd3ea 100644 --- a/src/secp256k1.c +++ b/src/secp256k1.c @@ -268,7 +268,6 @@ int secp256k1_ec_pubkey_parse(const secp256k1_context* ctx, secp256k1_pubkey* pu int secp256k1_ec_pubkey_serialize(const secp256k1_context* ctx, unsigned char *output, size_t *outputlen, const secp256k1_pubkey* pubkey, unsigned int flags) { secp256k1_ge Q; size_t len; - int ret = 0; VERIFY_CHECK(ctx != NULL); ARG_CHECK(outputlen != NULL); @@ -287,9 +286,9 @@ int secp256k1_ec_pubkey_serialize(const secp256k1_context* ctx, unsigned char *o secp256k1_eckey_pubkey_serialize65(&Q, output); *outputlen = 65; } - ret = 1; + return 1; } - return ret; + return 0; } int secp256k1_ec_pubkey_cmp(const secp256k1_context* ctx, const secp256k1_pubkey* pubkey0, const secp256k1_pubkey* pubkey1) {