1use ark_ec::{
 2    models::{short_weierstrass::SWCurveConfig, CurveConfig},
 3    short_weierstrass::Affine,
 4};
 5use ark_ff::{Field, MontFp, Zero};
 6
 7use crate::{Fq, Fr};
 8
 9#[derive(Clone, Default, PartialEq, Eq)]
10pub struct Parameters;
11
12pub type G1Affine = Affine<Parameters>;
13
14impl CurveConfig for Parameters {
15    type BaseField = Fq;
16    type ScalarField = Fr;
17
18    /// COFACTOR = 1
19    const COFACTOR: &'static [u64] = &[0x1];
20
21    /// COFACTOR_INV = COFACTOR^{-1} mod r = 1
22    const COFACTOR_INV: Fr = Fr::ONE;
23}
24
25impl SWCurveConfig for Parameters {
26    /// COEFF_A = 0
27    const COEFF_A: Fq = Fq::ZERO;
28
29    /// COEFF_B = 3
30    const COEFF_B: Fq = MontFp!("3");
31
32    /// AFFINE_GENERATOR_COEFFS = (G1_GENERATOR_X, G1_GENERATOR_Y)
33    const GENERATOR: G1Affine = G1Affine::new_unchecked(G1_GENERATOR_X, G1_GENERATOR_Y);
34
35    #[inline(always)]
36    fn mul_by_a(_: &Self::BaseField) -> Self::BaseField {
37        Self::BaseField::zero()
38    }
39}
40
41/// G1_GENERATOR_X = 1
42pub const G1_GENERATOR_X: Fq = Fq::ONE;
43
44/// G1_GENERATOR_Y = 2
45pub const G1_GENERATOR_Y: Fq = MontFp!("2");