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use pasta_msm crate for MSM (#75)

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* use pasta_msm crate for MSM

* add repr-c to pasta_curves

* add +stable

* update pasta-msm version
This commit is contained in:
Srinath Setty
2022-05-26 17:27:19 +05:30
committed by GitHub
parent 0154358469
commit 8308c29f94
3 changed files with 6 additions and 16 deletions
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17
src/pasta.rs
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@@ -3,7 +3,6 @@ use crate::{
poseidon::PoseidonRO,
traits::{ChallengeTrait, CompressedGroup, Group},
};
use core::ops::Mul;
use digest::{ExtendableOutput, Input};
use ff::Field;
use merlin::Transcript;
@@ -11,7 +10,7 @@ use num_bigint::BigInt;
use num_traits::Num;
use pasta_curves::{
self,
arithmetic::{CurveAffine, CurveExt, Group as Grp},
arithmetic::{CurveAffine, CurveExt},
group::{Curve, GroupEncoding},
pallas, vesta, Ep, Eq,
};
@@ -46,12 +45,7 @@ impl Group for pallas::Point {
scalars: &[Self::Scalar],
bases: &[Self::PreprocessedGroupElement],
) -> Self {
// Unoptimized.
scalars
.iter()
.zip(bases)
.map(|(scalar, base)| base.mul(scalar))
.fold(Ep::group_zero(), |acc, x| acc + x)
pasta_msm::pallas(bases, scalars)
}
fn compress(&self) -> Self::CompressedGroupElement {
@@ -136,12 +130,7 @@ impl Group for vesta::Point {
scalars: &[Self::Scalar],
bases: &[Self::PreprocessedGroupElement],
) -> Self {
// Unoptimized.
scalars
.iter()
.zip(bases)
.map(|(scalar, base)| base.mul(scalar))
.fold(Eq::group_zero(), |acc, x| acc + x)
pasta_msm::vesta(bases, scalars)
}
fn compress(&self) -> Self::CompressedGroupElement {