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Add dedicated test to clsag module

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Thomas Eizinger 2021-05-11 12:34:28 +10:00
parent 1bd8eb83d1
commit 9255cc8f68
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GPG Key ID: 651AC83A6C6C8B96
1 changed files with 47 additions and 1 deletions
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48
monero-adaptor/src/clsag.rs
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@ -89,7 +89,7 @@ pub fn sign(
}
#[must_use]
pub fn verify(sig: &Signature, ring: [EdwardsPoint; RING_SIZE], msg: &[u8; 32]) -> bool {
pub fn verify(sig: &Signature, ring: [EdwardsPoint; RING_SIZE], msg: &[u8]) -> bool {
let ring_concat = ring
.iter()
.flat_map(|pk| pk.compress().as_bytes().to_vec())
@ -261,6 +261,7 @@ fn hash_to_scalar(elements: &[&[u8]]) -> Scalar {
#[cfg(test)]
mod tests {
use super::*;
use rand::rngs::OsRng;
#[test]
fn const_is_inv_eight() {
@ -268,4 +269,49 @@ mod tests {
assert_eq!(inv_eight, INV_EIGHT);
}
#[test]
fn sign_and_verify() {
let msg_to_sign = b"hello world, monero is amazing!!";
let s_prime_a = Scalar::random(&mut OsRng);
let s_b = Scalar::random(&mut OsRng);
let pk = (s_prime_a + s_b) * ED25519_BASEPOINT_POINT;
let (r_a, R_a, R_prime_a) = {
let r_a = Scalar::random(&mut OsRng);
let R_a = r_a * ED25519_BASEPOINT_POINT;
let pk_hashed_to_point = hash_point_to_point(pk);
let R_prime_a = r_a * pk_hashed_to_point;
(r_a, R_a, R_prime_a)
};
let mut ring = [EdwardsPoint::default(); RING_SIZE];
ring[0] = pk;
ring[1..].fill_with(|| {
let x = Scalar::random(&mut OsRng);
x * ED25519_BASEPOINT_POINT
});
let mut commitment_ring = [EdwardsPoint::default(); RING_SIZE];
let real_commitment_blinding = Scalar::random(&mut OsRng);
commitment_ring[0] = real_commitment_blinding * ED25519_BASEPOINT_POINT; // + 0 * H
commitment_ring[1..].fill_with(|| {
let x = Scalar::random(&mut OsRng);
x * ED25519_BASEPOINT_POINT
});
// TODO: document
let pseudo_output_commitment = commitment_ring[0];
let signature = sign(msg_to_sign, todo!(), todo!(), todo!(), todo!(), todo!(), todo!(), todo!(), todo!(), todo!(), todo!(), todo!());
assert!(verify(&signature, todo!(), todo!()))
}
}