1use ark_ff::{
 2    fields::fp2::{Fp2, Fp2Config},
 3    MontFp, QuadExt,
 4};
 5
 6use crate::{Fq, FQ_ONE};
 7
 8pub type Fq2 = Fp2<Fq2Config>;
 9
10pub struct Fq2Config;
11
12impl Fp2Config for Fq2Config {
13    type Fp = Fq;
14
15    // non_residue = 13
16    const NONRESIDUE: Fq = MontFp!(Fq, "13");
17
18    // qnr = (8, 1)
19    const QUADRATIC_NONRESIDUE: Fq2 = QuadExt!(MontFp!(Fq, "8"), FQ_ONE);
20
21    // Coefficients:
22    // [1, 41898490967918953402344214791240637128170709919953949071783502921025352812571106773058893763790338921418070971888253786114353726529584385201591605722013126468931404347949840543007986327743462853720628051692141265303114721689600]
23    // see https://github.com/o1-labs/snarky/blob/2cf5ef3a14989e57c17518832b3c52590068fc48/src/camlsnark_c/libsnark-caml/depends/libff/libff/algebra/curves/mnt753/mnt4753/mnt4753_init.cpp
24    const FROBENIUS_COEFF_FP2_C1: &'static [Self::Fp] = &[
25        FQ_ONE,
26        MontFp!(Fq, "41898490967918953402344214791240637128170709919953949071783502921025352812571106773058893763790338921418070971888253786114353726529584385201591605722013126468931404347949840543007986327743462853720628051692141265303114721689600"),
27    ];
28}