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Make Schnorr modular to its transcript

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This commit is contained in:
Luke Parker
2023-03-07 05:30:21 -05:00
parent 6bff3866ea
commit 837c776297
6 changed files with 43 additions and 27 deletions
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2
crypto/schnorr/src/aggregate.rs
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@@ -16,7 +16,7 @@ use multiexp::multiexp_vartime;
use crate::SchnorrSignature;
// Returns a unbiased scalar weight to use on a signature in order to prevent malleability
fn weight<D: Clone + SecureDigest, F: PrimeField>(digest: &mut DigestTranscript<D>) -> F {
fn weight<D: Send + Clone + SecureDigest, F: PrimeField>(digest: &mut DigestTranscript<D>) -> F {
let mut bytes = digest.challenge(b"aggregation_weight");
debug_assert_eq!(bytes.len() % 8, 0);
// This should be guaranteed thanks to SecureDigest