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use crate::{fq::Fq, fr::Fr};
use ark_ec::{
models::{ModelParameters, SWModelParameters},
short_weierstrass_jacobian::{GroupAffine, GroupProjective},
};
use ark_ff::{field_new, Zero};
#[cfg(test)]
mod tests;
#[derive(Copy, Clone, Default, PartialEq, Eq)]
pub struct PallasParameters;
impl ModelParameters for PallasParameters {
type BaseField = Fq;
type ScalarField = Fr;
}
pub type Affine = GroupAffine<PallasParameters>;
pub type Projective = GroupProjective<PallasParameters>;
impl SWModelParameters for PallasParameters {
const COEFF_A: Fq = field_new!(Fq, "0");
const COEFF_B: Fq = field_new!(Fq, "5");
const COFACTOR: &'static [u64] = &[0x1];
const COFACTOR_INV: Fr = field_new!(Fr, "1");
const AFFINE_GENERATOR_COEFFS: (Self::BaseField, Self::BaseField) =
(G_GENERATOR_X, G_GENERATOR_Y);
#[inline(always)]
fn mul_by_a(_: &Self::BaseField) -> Self::BaseField {
Self::BaseField::zero()
}
}
pub const G_GENERATOR_X: Fq = field_new!(Fq, "-1");
pub const G_GENERATOR_Y: Fq = field_new!(Fq, "2");