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Deconstruct signature in parameter

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This removes the intermediary variable I.
This commit is contained in:
Thomas Eizinger 2021-05-11 14:51:15 +10:00
parent 87ca636ddb
commit c6b36449dc
No known key found for this signature in database
GPG key ID: 651AC83A6C6C8B96
1 changed files with 11 additions and 6 deletions
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17
monero-adaptor/src/clsag.rs
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@ -86,7 +86,13 @@ pub fn sign(
#[must_use] #[must_use]
pub fn verify( pub fn verify(
sig: &Signature, &Signature {
I,
h_0,
D,
responses,
..
}: &Signature,
msg: &[u8], msg: &[u8],
ring: &[EdwardsPoint; RING_SIZE], ring: &[EdwardsPoint; RING_SIZE],
commitment_ring: &[EdwardsPoint; RING_SIZE], commitment_ring: &[EdwardsPoint; RING_SIZE],
@ -95,7 +101,6 @@ pub fn verify(
) -> bool { ) -> bool {
let ring = Ring::new(ring); let ring = Ring::new(ring);
let commitment_ring = Ring::new(commitment_ring); let commitment_ring = Ring::new(commitment_ring);
let I = sig.I;
let mu_P = hash_to_scalar!( let mu_P = hash_to_scalar!(
b"CLSAG_agg_0" || ring || commitment_ring || I || H_p_pk || pseudo_output_commitment b"CLSAG_agg_0" || ring || commitment_ring || I || H_p_pk || pseudo_output_commitment
@ -104,14 +109,14 @@ pub fn verify(
b"CLSAG_agg_1" || ring || commitment_ring || I || H_p_pk || pseudo_output_commitment b"CLSAG_agg_1" || ring || commitment_ring || I || H_p_pk || pseudo_output_commitment
); );
let mut h = sig.h_0; let mut h = h_0;
for (i, s_i) in sig.responses.iter().enumerate() { for (i, s_i) in responses.iter().enumerate() {
let pk_i = ring[(i + 1) % RING_SIZE]; let pk_i = ring[(i + 1) % RING_SIZE];
let adjusted_commitment_i = commitment_ring[i] - pseudo_output_commitment; let adjusted_commitment_i = commitment_ring[i] - pseudo_output_commitment;
let L_i = compute_L(h, mu_P, mu_C, *s_i, pk_i, adjusted_commitment_i); let L_i = compute_L(h, mu_P, mu_C, *s_i, pk_i, adjusted_commitment_i);
let R_i = compute_R(h, mu_P, mu_C, pk_i, *s_i, sig.I, sig.D); let R_i = compute_R(h, mu_P, mu_C, pk_i, *s_i, I, D);
h = hash_to_scalar!( h = hash_to_scalar!(
b"CLSAG_round" b"CLSAG_round"
@ -124,7 +129,7 @@ pub fn verify(
); );
} }
h == sig.h_0 h == h_0
} }
pub struct Signature { pub struct Signature {