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47 lines
1.1 KiB
Rust
47 lines
1.1 KiB
Rust
use rand_core::OsRng;
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use sha2::{Digest, Sha256};
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use secp256k1::{SECP256K1, Message};
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use k256::Scalar;
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use transcript::{Transcript, RecommendedTranscript};
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use frost::{
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curve::Secp256k1,
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Participant,
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tests::{algorithm_machines, key_gen, sign},
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};
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use bitcoin_serai::{
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bitcoin::hashes::{Hash as HashTrait, sha256::Hash},
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crypto::{x_only, make_even, Schnorr},
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};
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#[test]
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fn test_algorithm() {
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let mut keys = key_gen::<_, Secp256k1>(&mut OsRng);
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const MESSAGE: &[u8] = b"Hello, World!";
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for (_, keys) in keys.iter_mut() {
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let (_, offset) = make_even(keys.group_key());
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*keys = keys.offset(Scalar::from(offset));
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}
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let algo =
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Schnorr::<RecommendedTranscript>::new(RecommendedTranscript::new(b"bitcoin-serai sign test"));
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let sig = sign(
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&mut OsRng,
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algo.clone(),
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keys.clone(),
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algorithm_machines(&mut OsRng, algo, &keys),
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&Sha256::digest(MESSAGE),
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);
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SECP256K1
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.verify_schnorr(
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&sig,
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&Message::from(Hash::hash(MESSAGE)),
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&x_only(&keys[&Participant::new(1).unwrap()].group_key()),
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)
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.unwrap()
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}
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