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Move embedwards25519 over to short-weierstrass

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This commit is contained in:
Luke Parker
2025-08-28 21:56:28 -04:00
parent f2d399ba1e
commit da190759a9
17 changed files with 252 additions and 536 deletions
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4
crypto/evrf/secq256k1/Cargo.toml
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@@ -23,8 +23,8 @@ prime-field = { path = "../../prime-field", default-features = false }
blake2 = { version = "0.10", default-features = false }
ciphersuite = { path = "../../ciphersuite", version = "0.4", default-features = false }
ec-divisors = { git = "https://github.com/monero-oxide/monero-oxide", rev = "59e3ae73b51c214afbc304efca8d748b3da62977", default-features = false }
generalized-bulletproofs-ec-gadgets = { git = "https://github.com/monero-oxide/monero-oxide", rev = "59e3ae73b51c214afbc304efca8d748b3da62977", default-features = false }
ec-divisors = { git = "https://github.com/monero-oxide/monero-oxide", rev = "a6f8797007e768488568b821435cf5006517a962", default-features = false }
generalized-bulletproofs-ec-gadgets = { git = "https://github.com/monero-oxide/monero-oxide", rev = "a6f8797007e768488568b821435cf5006517a962", default-features = false }
[dev-dependencies]
hex = "0.4"

7
crypto/evrf/secq256k1/src/lib.rs
View File

@@ -9,7 +9,7 @@ use std_shims::io::{self, Read};
use k256::elliptic_curve::{
zeroize::Zeroize,
generic_array::typenum::{Sum, Diff, Quot, U, U1, U2},
generic_array::typenum::U,
group::{
ff::{PrimeField, FromUniformBytes},
Group,
@@ -87,9 +87,6 @@ impl ciphersuite::Ciphersuite for Secq256k1 {
}
}
impl generalized_bulletproofs_ec_gadgets::DiscreteLogParameters for Secq256k1 {
impl generalized_bulletproofs_ec_gadgets::DiscreteLogParameter for Secq256k1 {
type ScalarBits = U<{ Scalar::NUM_BITS as usize }>;
type XCoefficients = Quot<Sum<Self::ScalarBits, U1>, U2>;
type XCoefficientsMinusOne = Diff<Self::XCoefficients, U1>;
type YxCoefficients = Diff<Quot<Sum<Sum<Self::ScalarBits, U1>, U1>, U2>, U2>;
}

5
crypto/evrf/secq256k1/src/point.rs
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@@ -1,4 +1,5 @@
use core::{
borrow::Borrow,
ops::{DerefMut, Add, AddAssign, Neg, Sub, SubAssign, Mul, MulAssign},
iter::Sum,
};
@@ -389,12 +390,12 @@ impl ec_divisors::DivisorCurve for Point {
type FieldElement = FieldElement;
type XyPoint = ec_divisors::Projective<Self>;
fn interpolator_for_scalar_mul() -> &'static ec_divisors::Interpolator<Self::FieldElement> {
fn interpolator_for_scalar_mul() -> impl Borrow<ec_divisors::Interpolator<Self::FieldElement>> {
static PRECOMPUTE: std_shims::sync::LazyLock<ec_divisors::Interpolator<FieldElement>> =
std_shims::sync::LazyLock::new(|| {
ec_divisors::Interpolator::new(usize::try_from(130).unwrap())
});
&PRECOMPUTE
&*PRECOMPUTE
}
fn a() -> Self::FieldElement {