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Constraint Scalar with Copy

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This commit is contained in:
daxpedda
2021-07-08 18:55:53 -07:00
committed by Kevin Lewi
parent dd97a81641
commit 52d68d6f77
6 changed files with 15 additions and 15 deletions
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src/group.rs
+4 -4
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@@ -28,7 +28,7 @@ use zeroize::Zeroize;
/// subgroup is noted additively — as in the draft RFC — in this trait.
pub trait Group: Copy + Sized + for<'a> Mul<&'a <Self as Group>::Scalar, Output = Self> {
/// The type of base field scalars
type Scalar: Zeroize + Clone;
type Scalar: Zeroize + Copy;
/// The byte length necessary to represent scalars
type ScalarLen: ArrayLength<u8> + 'static;
/// Return a scalar from its fixed-length bytes representation
@@ -38,7 +38,7 @@ pub trait Group: Copy + Sized + for<'a> Mul<&'a <Self as Group>::Scalar, Output
/// picks a scalar at random
fn random_nonzero_scalar<R: RngCore + CryptoRng>(rng: &mut R) -> Self::Scalar;
/// Serializes a scalar to bytes
fn scalar_as_bytes(scalar: &Self::Scalar) -> &GenericArray<u8, Self::ScalarLen>;
fn scalar_as_bytes(scalar: Self::Scalar) -> GenericArray<u8, Self::ScalarLen>;
/// The multiplicative inverse of this scalar
fn scalar_invert(scalar: &Self::Scalar) -> Self::Scalar;
@@ -105,8 +105,8 @@ impl Group for RistrettoPoint {
}
}
}
fn scalar_as_bytes(scalar: &Self::Scalar) -> &GenericArray<u8, Self::ScalarLen> {
GenericArray::from_slice(scalar.as_bytes())
fn scalar_as_bytes(scalar: Self::Scalar) -> GenericArray<u8, Self::ScalarLen> {
scalar.to_bytes().into()
}
fn scalar_invert(scalar: &Self::Scalar) -> Self::Scalar {
scalar.invert()