ark_bn254/fields/
fq2.rs

1use ark_ff::{fields::*, MontFp};
2
3use crate::*;
4
5pub type Fq2 = Fp2<Fq2Config>;
6
7pub struct Fq2Config;
8
9impl Fp2Config for Fq2Config {
10    type Fp = Fq;
11
12    /// NONRESIDUE = -1
13    const NONRESIDUE: Fq = MontFp!("-1");
14
15    /// Coefficients for the Frobenius automorphism.
16    const FROBENIUS_COEFF_FP2_C1: &'static [Fq] = &[
17        // NONRESIDUE**(((q^0) - 1) / 2)
18        Fq::ONE,
19        // NONRESIDUE**(((q^1) - 1) / 2)
20        MontFp!("-1"),
21    ];
22
23    #[inline(always)]
24    fn mul_fp_by_nonresidue_in_place(fe: &mut Self::Fp) -> &mut Self::Fp {
25        fe.neg_in_place()
26    }
27}