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Luke Parker 2022-04-27 00:09:25 -04:00
parent df4be9ca0c
commit c9537a08a1
No known key found for this signature in database
GPG key ID: F9F1386DB1E119B6
4 changed files with 13 additions and 12 deletions
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4
coins/monero/Cargo.toml
View file

@ -19,8 +19,8 @@ curve25519-dalek = { version = "3.2", features = ["std", "simd_backend"] }
ff = { version = "0.11", optional = true }
group = { version = "0.11", optional = true }
dalek-ff-group = { path = "../dalek-ff-group", optional = true }
frost = { path = "../frost", optional = true }
dalek-ff-group = { path = "../../sign/dalek-ff-group", optional = true }
frost = { path = "../../sign/frost", optional = true }
monero = "0.16.0" # Locked to this specific patch version due to a bug we compensate for

3
coins/monero/build.rs
View file

@ -38,7 +38,8 @@ fn main() {
println!("cargo:rerun-if-env-changed=OUT_DIR");
if !Path::new(
&format!(
"c/monero/src/crypto/{}cncrypto.{}",
"{}/{}cncrypto.{}",
out_dir,
&env::consts::DLL_PREFIX,
&env::consts::DLL_EXTENSION
)

6
coins/monero/src/clsag/multisig.rs
View file

@ -1,6 +1,6 @@
use rand_core::{RngCore, CryptoRng};
use blake2::{Digest, Blake2b512};
use blake2::{digest::Update, Digest, Blake2b512};
use curve25519_dalek::{
constants::ED25519_BASEPOINT_TABLE,
@ -154,7 +154,7 @@ impl Algorithm<Ed25519> for Multisig {
) -> dfg::Scalar {
// Use everyone's commitments to derive a random source all signers can agree upon
// Cannot be manipulated to effect and all signers must, and will, know this
let rand_source = Keccak::v512()
let rand_source = Blake2b512::new()
.chain("clsag_randomness")
.chain(&self.b)
.finalize()
@ -191,7 +191,7 @@ impl Algorithm<Ed25519> for Multisig {
let mut clsag = interim.clsag.clone();
clsag.s[self.ssr.i] = Key { key: s.to_bytes() };
if verify(&clsag, self.image, &self.ssr.ring, &self.msg, interim.C_out).is_ok() {
if verify(&clsag, self.image, &self.msg, &self.ssr.ring, interim.C_out).is_ok() {
return Some((clsag, interim.C_out));
}
return None;

12
coins/monero/src/frost.rs
View file

@ -2,7 +2,7 @@ use core::convert::TryInto;
use rand_core::{RngCore, CryptoRng};
use blake2::{Digest, Blake2b512};
use blake2::{digest::Update, Digest, Blake2b512};
use curve25519_dalek::{
constants::ED25519_BASEPOINT_TABLE as DTable,
@ -49,7 +49,7 @@ impl Curve for Ed25519 {
}
fn hash_msg(msg: &[u8]) -> Vec<u8> {
Blake2b512::digest(msg)
Blake2b512::digest(msg).to_vec()
}
fn hash_to_F(data: &[u8]) -> Self::F {
@ -120,13 +120,13 @@ impl DLEqProof {
let R1 = &DTable * &r;
let R2 = r * H;
let c = DScalar::from_hash(
let c = dfg::Scalar::from_hash(
Blake2b512::new()
.chain(R1.compress().to_bytes())
.chain(R2.compress().to_bytes())
.chain((secret * &DTable).compress().to_bytes())
.chain(alt.compress().to_bytes())
);
).0;
let s = r + (c * secret);
DLEqProof { s, c }
@ -144,13 +144,13 @@ impl DLEqProof {
let R1 = (&s * &DTable) - (c * primary);
let R2 = (s * H) - (c * alt);
let expected_c = DScalar::from_hash(
let expected_c = dfg::Scalar::from_hash(
Blake2b512::new()
.chain(R1.compress().to_bytes())
.chain(R2.compress().to_bytes())
.chain(primary.compress().to_bytes())
.chain(alt.compress().to_bytes())
);
).0;
// Take the opportunity to ensure a lack of torsion in key images/randomness commitments
if (!primary.is_torsion_free()) || (!alt.is_torsion_free()) || (c != expected_c) {