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Use a closure to not duplicate the common parts of ring element

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Thomas Eizinger 2021-05-11 15:08:20 +10:00
parent c0f4b566c4
commit fbf9d456ae
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GPG Key ID: 651AC83A6C6C8B96
1 changed files with 8 additions and 12 deletions
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20
monero-adaptor/src/clsag.rs
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@ -38,9 +38,13 @@ pub fn sign(
b"CLSAG_agg_1" || ring || commitment_ring || I || H_p_pk || pseudo_output_commitment
);
let h_0 = hash_to_scalar!(
b"CLSAG_round" || ring || commitment_ring || pseudo_output_commitment || msg || L_0 || R_0
);
let compute_ring_element = |L: EdwardsPoint, R: EdwardsPoint| {
hash_to_scalar!(
b"CLSAG_round" || ring || commitment_ring || pseudo_output_commitment || msg || L || R
)
};
let h_0 = compute_ring_element(L_0, R_0);
let adjusted_commitment_ring = &commitment_ring - pseudo_output_commitment;
let h_last = fake_responses
@ -52,15 +56,7 @@ pub fn sign(
let L_i = compute_L(h_prev, mu_P, mu_C, *s_i, pk_i, adjusted_commitment_ring[i]);
let R_i = compute_R(h_prev, mu_P, mu_C, pk_i, *s_i, I, D_inv_8);
hash_to_scalar!(
b"CLSAG_round"
|| ring
|| commitment_ring
|| pseudo_output_commitment
|| msg
|| L_i
|| R_i
)
compute_ring_element(L_i, R_i)
});
let s_last = alpha - h_last * ((mu_P * signing_key) + (mu_C * z));