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Catch up with algebra (#106)

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Co-authored-by: Pratyush Mishra <pratyushmishra@berkeley.edu>
This commit is contained in:
Marcin
2022-07-29 21:16:16 +02:00
committed by GitHub
parent 76579d0fbb
commit 93e64df895
120 changed files with 934 additions and 1653 deletions
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2
pallas/src/constraints/mod.rs
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@@ -1,7 +1,7 @@
//! This module implements the R1CS equivalent of `ark_pallas`.
//!
//! It implements field variables for `crate::Fq`,
//! and group variables for `crate::GroupProjective`.
//! and group variables for `crate::Projective`.
//!
//! The field underlying these constraints is `crate::Fq`.
//!

27
pallas/src/curves/mod.rs
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@@ -1,8 +1,8 @@
use ark_ec::{
models::{ModelParameters, SWModelParameters},
short_weierstrass_jacobian::{GroupAffine, GroupProjective},
models::CurveConfig,
short_weierstrass::{Affine, Projective, SWCurveConfig},
};
use ark_ff::{MontFp, Zero};
use ark_ff::{Field, MontFp, Zero};
use crate::{fq::Fq, fr::Fr};
@@ -12,7 +12,7 @@ mod tests;
#[derive(Copy, Clone, Default, PartialEq, Eq)]
pub struct PallasParameters;
impl ModelParameters for PallasParameters {
impl CurveConfig for PallasParameters {
type BaseField = Fq;
type ScalarField = Fr;
@@ -20,22 +20,21 @@ impl ModelParameters for PallasParameters {
const COFACTOR: &'static [u64] = &[0x1];
/// COFACTOR_INV = 1
const COFACTOR_INV: Fr = MontFp!(Fr, "1");
const COFACTOR_INV: Fr = Fr::ONE;
}
pub type Affine = GroupAffine<PallasParameters>;
pub type Projective = GroupProjective<PallasParameters>;
pub type G1Affine = Affine<PallasParameters>;
pub type G1Projective = Projective<PallasParameters>;
impl SWModelParameters for PallasParameters {
impl SWCurveConfig for PallasParameters {
/// COEFF_A = 0
const COEFF_A: Fq = MontFp!(Fq, "0");
const COEFF_A: Fq = Fq::ZERO;
/// COEFF_B = 5
const COEFF_B: Fq = MontFp!(Fq, "5");
const COEFF_B: Fq = MontFp!("5");
/// AFFINE_GENERATOR_COEFFS = (G1_GENERATOR_X, G1_GENERATOR_Y)
const AFFINE_GENERATOR_COEFFS: (Self::BaseField, Self::BaseField) =
(G_GENERATOR_X, G_GENERATOR_Y);
const GENERATOR: G1Affine = Affine::new_unchecked(G_GENERATOR_X, G_GENERATOR_Y);
#[inline(always)]
fn mul_by_a(_: &Self::BaseField) -> Self::BaseField {
@@ -44,7 +43,7 @@ impl SWModelParameters for PallasParameters {
}
/// G_GENERATOR_X = -1
pub const G_GENERATOR_X: Fq = MontFp!(Fq, "-1");
pub const G_GENERATOR_X: Fq = MontFp!("-1");
/// G_GENERATOR_Y = 2
pub const G_GENERATOR_Y: Fq = MontFp!(Fq, "2");
pub const G_GENERATOR_Y: Fq = MontFp!("2");

20
pallas/src/curves/tests.rs
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@@ -1,29 +1,17 @@
use ark_algebra_test_templates::{
curves::{curve_tests, sw_tests},
groups::group_test,
};
use ark_algebra_test_templates::curves::{curve_tests, sw_tests};
use ark_ec::AffineCurve;
use ark_std::{rand::Rng, test_rng};
use crate::{Affine, PallasParameters, Projective};
use crate::{G1Affine, G1Projective, PallasParameters};
#[test]
fn test_projective_curve() {
curve_tests::<Projective>();
curve_tests::<G1Projective>();
sw_tests::<PallasParameters>();
}
#[test]
fn test_projective_group() {
let mut rng = test_rng();
let a: Projective = rng.gen();
let b: Projective = rng.gen();
group_test(a, b);
}
#[test]
fn test_generator() {
let generator = Affine::prime_subgroup_generator();
let generator = G1Affine::prime_subgroup_generator();
assert!(generator.is_on_curve());
assert!(generator.is_in_correct_subgroup_assuming_on_curve());
}

2
pallas/src/fields/tests.rs
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@@ -1,7 +1,7 @@
use ark_algebra_test_templates::{
fields::*, generate_field_serialization_test, generate_field_test,
};
use ark_ff::{Field, One, PrimeField, SquareRootField, UniformRand, Zero};
use ark_ff::{Field, One, PrimeField, UniformRand, Zero};
use ark_serialize::{buffer_bit_byte_size, CanonicalSerialize};
use ark_std::{rand::Rng, test_rng};
use core::ops::{AddAssign, MulAssign, SubAssign};