absolutebi/serai
1
0
Fork 0
mirror of https://github.com/serai-dex/serai.git synced 2025-12-08 12:19:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

Offer a multi-DLEq proof which simply merges challenges for n underlying proofs

Browse Source 
This converts proofs from 2n elements to 1+n.

Moves FROST over to it. Additionally, for FROST's binomial nonces, provides
a single DLEq proof (2, not 1+2 elements) by proving the discrete log equality
of their aggregate (with an appropriate binding factor). This may be split back
up depending on later commentary...
This commit is contained in:
Luke Parker
2023-01-01 09:16:09 -05:00
parent 49c4acffbb
commit eeca440fa7
6 changed files with 291 additions and 86 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/dkg/src/frost.rs
View File

@@ -36,7 +36,7 @@ type FrostError<C> = DkgError<EncryptionKeyProof<C>>;
#[allow(non_snake_case)]
fn challenge<C: Ciphersuite>(context: &str, l: u16, R: &[u8], Am: &[u8]) -> C::F {
let mut transcript = RecommendedTranscript::new(b"DKG FROST v0.2");
transcript.domain_separate(b"Schnorr Proof of Knowledge");
transcript.domain_separate(b"schnorr_proof_of_knowledge");
transcript.append_message(b"context", context.as_bytes());
transcript.append_message(b"participant", l.to_le_bytes());
transcript.append_message(b"nonce", R);