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elliptic-curve: add Arithmetic trait #219

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Merged
tarcieri merged 1 commit into from
Jul 25, 2020
Merged

elliptic-curve: add Arithmetic trait #219

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9 changes: 9 additions & 0 deletions elliptic-curve/src/weierstrass/curve.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,5 +16,14 @@ pub trait Curve: Clone + Debug + Default + Eq + Ord + Send + Sync {
type ScalarSize: ArrayLength<u8> + Add + Add<U1> + Eq + Ord + Unsigned;
}

/// Curve arithmetic support
pub trait Arithmetic: Curve {
/// Scalar type for a given curve
type Scalar;

/// Affine point type for a given curve
type AffinePoint;
}

/// Alias for [`SecretKey`] type for a given Weierstrass curve
pub type SecretKey<C> = crate::secret_key::SecretKey<<C as Curve>::ScalarSize>;