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Fix TODO by instructing Vec

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Thomas Eizinger 2021-05-10 17:45:31 +10:00
parent 38123a324f
commit b944f0f989
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1 changed files with 9 additions and 11 deletions
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20
monero-adaptor/src/lib.rs
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@ -122,26 +122,24 @@ fn challenge(
Ok(Scalar::from_bytes_mod_order(output)) Ok(Scalar::from_bytes_mod_order(output))
} }
// h_0 = keccak256("CLSAG_round" || ring || /// Compute the prefix for the hash common to every iteration of the ring signature algorithm.
// ring of commitments || pseudooutput commitment || msg || alpha * G || ///
// alpha * hash_to_point(signing pk)) /// "CLSAG_round" || ring || ring of commitments || pseudooutput commitment || msg || alpha * G
//
// where alpha is random
// TODO: Create ring newtype
fn clsag_round_hash_prefix( fn clsag_round_hash_prefix(
ring: &[u8], ring: &[u8],
commitment_ring: &[u8], commitment_ring: &[u8],
pseudo_output_commitment: &EdwardsPoint, pseudo_output_commitment: &EdwardsPoint,
msg: &[u8], msg: &[u8],
) -> Vec<u8> { ) -> Vec<u8> {
// TODO: Set capacity let domain_prefix = HASH_KEY_CLSAG_ROUND.as_bytes();
let mut prefix = Vec::new(); let pseudo_output_commitment = pseudo_output_commitment.compress().as_bytes();
prefix.extend(HASH_KEY_CLSAG_ROUND.as_bytes()); let mut prefix = Vec::with_capacity(domain_prefix.len() + ring.len() + commitment_ring.len() + pseudo_output_commitment.len() + msg.len());
prefix.extend(domain_prefix);
prefix.extend(ring); prefix.extend(ring);
prefix.extend(commitment_ring); prefix.extend(commitment_ring);
prefix.extend(pseudo_output_commitment.compress().as_bytes()); prefix.extend(pseudo_output_commitment);
prefix.extend(msg); prefix.extend(msg);
prefix prefix