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ark-curves-cherry-picked/mnt4_298/src/curves/mod.rs
mnt4_298/src/curves/mod.rsRaw
 1use ark_ec::models::mnt4::{MNT4Parameters, MNT4};
 2use ark_ff::{biginteger::BigInteger320, BigInt, Fp2, MontFp, QuadExt};
 3
 4use crate::{Fq, 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<Parameters>;
18
19pub struct Parameters;
20
21impl MNT4Parameters for Parameters {
22    const TWIST: Fp2<Self::Fp2Config> = QuadExt!(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: Fp2<Self::Fp2Config> = QuadExt!(G1_COEFF_A_NON_RESIDUE, FQ_ZERO);
30
31    const ATE_LOOP_COUNT: &'static [u64] = &[993502997770534912, 5071219579242586943, 2027349];
32    const ATE_IS_LOOP_COUNT_NEG: bool = false;
33    const FINAL_EXPONENT_LAST_CHUNK_1: BigInteger320 = BigInt::new([0x1, 0x0, 0x0, 0x0, 0x0]);
34    const FINAL_EXPONENT_LAST_CHUNK_W0_IS_NEG: bool = false;
35    const FINAL_EXPONENT_LAST_CHUNK_ABS_OF_W0: BigInteger320 =
36        BigInt::new([993502997770534913, 5071219579242586943, 2027349, 0, 0]);
37    type Fp = Fq;
38    type Fr = Fr;
39    type Fp2Config = Fq2Config;
40    type Fp4Config = Fq4Config;
41    type G1Parameters = self::g1::Parameters;
42    type G2Parameters = self::g2::Parameters;
43}
44
45// 34
46pub const G1_COEFF_A_NON_RESIDUE: Fq = MontFp!(Fq, "34");
47pub const FQ_ZERO: Fq = MontFp!(Fq, "0");
48pub const FQ_ONE: Fq = MontFp!(Fq, "1");
49pub const FR_ZERO: Fr = MontFp!(Fr, "0");
50pub const FR_ONE: Fr = MontFp!(Fr, "1");