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Slightly simplify CLSAG signing

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Expands its test to test all possible ring indexes, though just 0 and a 
single n would be sufficient.
This commit is contained in:
Luke Parker
2022-05-14 00:45:13 -04:00
parent 0aeab04c70
commit 94bd30083b
4 changed files with 54 additions and 60 deletions
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76
coins/monero/tests/clsag.rs
View File

@@ -16,50 +16,54 @@ mod frost;
#[cfg(feature = "multisig")]
use crate::frost::{THRESHOLD, generate_keys, sign};
const RING_INDEX: u8 = 3;
const RING_LEN: u64 = 11;
const AMOUNT: u64 = 1337;
#[cfg(feature = "multisig")]
const RING_INDEX: u8 = 3;
#[test]
fn clsag() {
let msg = [1; 32];
for real in 0 .. RING_LEN {
let msg = [1; 32];
let mut secrets = [Scalar::zero(), Scalar::zero()];
let mut ring = vec![];
for i in 0 .. RING_LEN {
let dest = random_scalar(&mut OsRng);
let mask = random_scalar(&mut OsRng);
let amount;
if i == u64::from(RING_INDEX) {
secrets = [dest, mask];
amount = AMOUNT;
} else {
amount = OsRng.next_u64();
let mut secrets = [Scalar::zero(), Scalar::zero()];
let mut ring = vec![];
for i in 0 .. RING_LEN {
let dest = random_scalar(&mut OsRng);
let mask = random_scalar(&mut OsRng);
let amount;
if i == u64::from(real) {
secrets = [dest, mask];
amount = AMOUNT;
} else {
amount = OsRng.next_u64();
}
ring.push([&dest * &ED25519_BASEPOINT_TABLE, Commitment::new(mask, amount).calculate()]);
}
ring.push([&dest * &ED25519_BASEPOINT_TABLE, Commitment::new(mask, amount).calculate()]);
}
let image = key_image::generate(&secrets[0]);
let (clsag, pseudo_out) = clsag::sign(
&mut OsRng,
&vec![(
secrets[0],
image,
clsag::Input::new(
Commitment::new(secrets[1], AMOUNT),
Decoys {
i: RING_INDEX,
offsets: (1 ..= RING_LEN).into_iter().map(|o| VarInt(o)).collect(),
ring: ring.clone()
}
).unwrap()
)],
random_scalar(&mut OsRng),
msg
).unwrap().swap_remove(0);
clsag::verify(&clsag, &ring, &image, &pseudo_out, &msg).unwrap();
#[cfg(feature = "experimental")]
clsag::rust_verify(&clsag, &ring, &image, &pseudo_out, &msg).unwrap();
let image = key_image::generate(&secrets[0]);
let (clsag, pseudo_out) = clsag::sign(
&mut OsRng,
&vec![(
secrets[0],
image,
clsag::Input::new(
Commitment::new(secrets[1], AMOUNT),
Decoys {
i: u8::try_from(real).unwrap(),
offsets: (1 ..= RING_LEN).into_iter().map(|o| VarInt(o)).collect(),
ring: ring.clone()
}
).unwrap()
)],
random_scalar(&mut OsRng),
msg
).unwrap().swap_remove(0);
clsag::verify(&clsag, &ring, &image, &pseudo_out, &msg).unwrap();
#[cfg(feature = "experimental")]
clsag::rust_verify(&clsag, &ring, &image, &pseudo_out, &msg).unwrap();
}
}
#[cfg(feature = "multisig")]

2
coins/monero/tests/key_image.rs
View File

@@ -10,7 +10,7 @@ mod frost;
use crate::frost::{THRESHOLD, PARTICIPANTS, generate_keys};
#[test]
fn test() {
fn key_image() {
let (keys, group_private) = generate_keys();
let image = key_image::generate(&group_private);