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Simplify Monero key image handling

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This commit is contained in:
Luke Parker
2022-05-17 19:15:53 -04:00
parent dcd909a839
commit fd0fd77cf5
12 changed files with 108 additions and 205 deletions
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4
coins/monero/tests/clsag.rs
View File

@@ -7,7 +7,7 @@ use curve25519_dalek::{constants::ED25519_BASEPOINT_TABLE, scalar::Scalar};
use monero::VarInt;
use monero_serai::{random_scalar, Commitment, transaction::decoys::Decoys, key_image, clsag};
use monero_serai::{Commitment, random_scalar, generate_key_image, transaction::decoys::Decoys, clsag};
#[cfg(feature = "multisig")]
use monero_serai::frost::{MultisigError, Transcript};
@@ -42,7 +42,7 @@ fn clsag() {
ring.push([&dest * &ED25519_BASEPOINT_TABLE, Commitment::new(mask, amount).calculate()]);
}
let image = key_image::generate(&secrets[0]);
let image = generate_key_image(&secrets[0]);
let (clsag, pseudo_out) = clsag::sign(
&mut OsRng,
&vec![(

51
coins/monero/tests/key_image.rs
View File

@@ -1,51 +0,0 @@
#![cfg(feature = "multisig")]
use rand::{RngCore, rngs::OsRng};
use curve25519_dalek::{traits::Identity, edwards::EdwardsPoint};
use monero_serai::key_image;
mod frost;
use crate::frost::{THRESHOLD, PARTICIPANTS, generate_keys};
#[test]
fn key_image() {
let (keys, group_private) = generate_keys();
let image = key_image::generate(&group_private);
let mut included = (1 ..= PARTICIPANTS).into_iter().collect::<Vec<usize>>();
while included.len() > THRESHOLD {
included.swap_remove((OsRng.next_u64() as usize) % included.len());
}
included.sort();
let mut views = vec![];
let mut shares = vec![];
for i in 1 ..= PARTICIPANTS {
if included.contains(&i) {
// If they were included, include their view
views.push(keys[i - 1].view(&included).unwrap());
let share = key_image::generate_share(&mut OsRng, &views[i - 1]);
let mut serialized = share.0.compress().to_bytes().to_vec();
serialized.extend(b"abc");
serialized.extend(&share.1);
shares.push(serialized);
} else {
// If they weren't included, include dummy data to fill the Vec
// Uses the view of someone actually included as Params::new verifies inclusion
views.push(keys[included[0] - 1].view(&included).unwrap());
shares.push(vec![]);
}
}
for i in &included {
let mut multi_image = EdwardsPoint::identity();
for l in &included {
let share = key_image::verify_share(&views[i - 1], *l, &shares[l - 1]).unwrap();
assert_eq!(share.1, b"abc");
multi_image += share.0;
}
assert_eq!(image, multi_image);
}
}