1use ark_ec::models::mnt4::{MNT4Config, MNT4};
 2use ark_ff::{biginteger::BigInteger320, AdditiveGroup, BigInt, Field, MontFp};
 3
 4use crate::{Fq, Fq2, Fq2Config, Fq4Config, Fr};
 5
 6pub mod g1;
 7pub mod g2;
 8
 9#[cfg(test)]
10mod tests;
11
12pub use self::{
13    g1::{G1Affine, G1Prepared, G1Projective},
14    g2::{G2Affine, G2Prepared, G2Projective},
15};
16
17pub type MNT4_298 = MNT4<Config>;
18
19pub struct Config;
20
21impl MNT4Config for Config {
22    const TWIST: Fq2 = Fq2::new(Fq::ZERO, Fq::ONE);
23    // A coefficient of MNT4-298 G2 =
24    // ```
25    // mnt4298_twist_coeff_a = mnt4298_Fq2(mnt4298_G1::coeff_a * non_residue, mnt6298_Fq::zero());
26    //  = (A_COEFF * NONRESIDUE, ZERO)
27    //  = (34, ZERO)
28    // ```
29    const TWIST_COEFF_A: Fq2 = Fq2::new(G1_COEFF_A_NON_RESIDUE, Fq::ZERO);
30
31    // https://github.com/o1-labs/snarky/blob/9c21ab2bb23874604640740d646a932e813432c3/snarkette/mnt4_80.ml#L88
32    const ATE_LOOP_COUNT: &'static [i8] = &[
33        1, 0, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, -1,
34        0, 1, 0, -1, 0, 0, 0, 0, 0, 1, 0, 1, 0, -1, 0, 0, 0, -1, 0, -1, 0, -1, 0, 0, -1, 0, -1, 0,
35        0, 0, 0, 0, -1, 0, -1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, -1, 0, 1, 0, 0, 0, 0, 0, -1,
36        0, 0, 0, 1, 0, 0, -1, 0, 0, -1, 0, 0, 1, 0, 1, 0, -1, 0, 1, 0, 0, 0, 1, 0, 0, -1, 0, 0, -1,
37        0, -1, 0, 1, 0, 0, -1, 0, 0, 1, 0, -1, 0, -1, 0, 1, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
38        0, 0, 0, 0, 0, 0,
39    ];
40    const ATE_IS_LOOP_COUNT_NEG: bool = false;
41    const FINAL_EXPONENT_LAST_CHUNK_1: BigInteger320 = BigInt::new([0x1, 0x0, 0x0, 0x0, 0x0]);
42    const FINAL_EXPONENT_LAST_CHUNK_W0_IS_NEG: bool = false;
43    const FINAL_EXPONENT_LAST_CHUNK_ABS_OF_W0: BigInteger320 =
44        BigInt::new([993502997770534913, 5071219579242586943, 2027349, 0, 0]);
45    type Fp = Fq;
46    type Fr = Fr;
47    type Fp2Config = Fq2Config;
48    type Fp4Config = Fq4Config;
49    type G1Config = self::g1::Config;
50    type G2Config = self::g2::Config;
51}
52
53// 34
54pub const G1_COEFF_A_NON_RESIDUE: Fq = MontFp!("34");