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Adds a (very simple, const-and-no_std-friendly) ObjectIdentifier type and an Identifier trait for attaching an OID to a curve.

No validation of the nodes is presently performed (and since it's impl'd as a const fn, it'd require a MSRV bump to do so). Also requires the OID be specified as an array literal: no parsing is supported for either string or binary-encoded OIDs.

Only string serialization is supported for now (via Display). A no_std-friendly binary serializer will be somewhat tricky.

@tarcieri
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I took a look at the oid crate for this, unfortunately it has a hard dependency on liballoc and no support for const initialization.

Adds a (very simple, const-and-no_std-friendly) `ObjectIdentifier` type
and an `Identifier` trait for attaching an OID to a curve.

No validation of the nodes is presently performed (and since it's impl'd
as a `const fn`, it'd require a MSRV bump to do so). Also requires the
OID be specified as an array literal: no parsing is supported for either
string or binary-encoded OIDs.

Only string serialization is supported for now. A `no_std`-friendly
binary serializer will be somewhat tricky.
@tarcieri tarcieri force-pushed the elliptic-curve/oid branch from d5aa20f to f52c062 Compare July 31, 2020 02:26
@tarcieri tarcieri merged commit a65edce into master Jul 31, 2020
@tarcieri tarcieri deleted the elliptic-curve/oid branch July 31, 2020 02:30
@newpavlov
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Ideally we should specify OID for other algorithms as well, so if oid is not a good fit, maybe create a separate crate for it?

@tarcieri
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Yeah, good point, we could potentially split this out into a separate crate somewhere, although I can't think of a good name.

@newpavlov
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newpavlov commented Jul 31, 2020

crypto-oid or small-oid?

@tarcieri
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const-oid or oid-consts might describe the use case a little more specifically

tarcieri added a commit to RustCrypto/utils that referenced this pull request Aug 4, 2020
This is an extraction of the const OID support added to the
`elliptic-curve` crate in RustCrypto/traits#240.
tarcieri added a commit to RustCrypto/utils that referenced this pull request Aug 4, 2020
This is an extraction of the const OID support added to the
`elliptic-curve` crate in RustCrypto/traits#240.
@tarcieri tarcieri mentioned this pull request Aug 10, 2020
dns2utf8 pushed a commit to dns2utf8/traits that referenced this pull request Jan 24, 2023
Changes the B64 decoder to return a `Result`, returning an error if the
input is invalid instead of panicking.

Fixes RustCrypto#240
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3 participants