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Use HashMarker for Transcript and when generating scalars from digests

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This commit is contained in:
Luke Parker
2022-09-29 05:33:46 -04:00
parent ca091a5f04
commit 8d9315b797
3 changed files with 10 additions and 10 deletions
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4
crypto/dalek-ff-group/src/lib.rs
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@@ -10,7 +10,7 @@ use zeroize::Zeroize;
use subtle::{ConstantTimeEq, ConditionallySelectable};
use rand_core::RngCore;
use digest::{consts::U64, Digest};
use digest::{consts::U64, Digest, HashMarker};
use subtle::{Choice, CtOption};
@@ -182,7 +182,7 @@ impl Scalar {
}
/// Derive a Scalar without bias from a digest via wide reduction.
pub fn from_hash<D: Digest<OutputSize = U64>>(hash: D) -> Scalar {
pub fn from_hash<D: Digest<OutputSize = U64> + HashMarker>(hash: D) -> Scalar {
let mut output = [0u8; 64];
output.copy_from_slice(&hash.finalize());
let res = Scalar(DScalar::from_bytes_mod_order_wide(&output));