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Don't offset nonces yet negate to achieve an even Y coordinate

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Replaces an iterative loop with an immediate result, if action is necessary.
This commit is contained in:
Luke Parker
2025-08-18 06:39:39 -04:00
parent 153f6f2f2f
commit 5e60ea9718
7 changed files with 33 additions and 34 deletions
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7
networks/bitcoin/src/tests/crypto.rs
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@@ -2,7 +2,6 @@ use rand_core::OsRng;
use secp256k1::{Secp256k1 as BContext, Message, schnorr::Signature};
use k256::Scalar;
use frost::{
curve::Secp256k1,
Participant,
@@ -11,7 +10,8 @@ use frost::{
use crate::{
bitcoin::hashes::{Hash as HashTrait, sha256::Hash},
crypto::{x_only, make_even, Schnorr},
crypto::{x_only, Schnorr},
wallet::tweak_keys,
};
#[test]
@@ -20,8 +20,7 @@ fn test_algorithm() {
const MESSAGE: &[u8] = b"Hello, World!";
for keys in keys.values_mut() {
let (_, offset) = make_even(keys.group_key());
*keys = keys.offset(Scalar::from(offset));
*keys = tweak_keys(keys.clone());
}
let algo = Schnorr::new();