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Implement a CLSAG algorithm extension which also does key images

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Practically, this should be mergeable. There's little reason to do a 
CLSAG and not also a key image. Keeps them isolated for now.
This commit is contained in:
Luke Parker
2022-04-29 22:03:34 -04:00
parent 45559e14ee
commit 27396a6291
10 changed files with 213 additions and 103 deletions
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5
coins/monero/src/key_image/multisig.rs
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@@ -32,16 +32,15 @@ pub fn verify_share(
share: &[u8]
) -> Result<(EdwardsPoint, Vec<u8>), MultisigError> {
if share.len() < 96 {
Err(MultisigError::InvalidDLEqProof(l))?;
Err(MultisigError::InvalidDLEqProof)?;
}
let image = CompressedEdwardsY(
share[0 .. 32].try_into().unwrap()
).decompress().ok_or(MultisigError::InvalidKeyImage(l))?;
let proof = DLEqProof::deserialize(
&share[(share.len() - 64) .. share.len()]
).ok_or(MultisigError::InvalidDLEqProof(l))?;
).ok_or(MultisigError::InvalidDLEqProof)?;
proof.verify(
l,
&hash_to_point(&view.group_key().0),
&view.verification_share(l),
&image