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33 lines
781 B
33 lines
781 B
use ark_ff::{fields::*, MontFp, QuadExt};
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use crate::*;
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pub type Fq2 = Fp2<Fq2Config>;
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pub struct Fq2Config;
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impl Fp2Config for Fq2Config {
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type Fp = Fq;
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/// NONRESIDUE = -5
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const NONRESIDUE: Fq = MontFp!(Fq, "-5");
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/// Coefficients for the Frobenius automorphism.
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const FROBENIUS_COEFF_FP2_C1: &'static [Fq] = &[
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// NONRESIDUE**(((q^0) - 1) / 2)
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FQ_ONE,
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// NONRESIDUE**(((q^1) - 1) / 2)
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MontFp!(Fq, "-1"),
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];
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#[inline(always)]
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fn mul_fp_by_nonresidue(fe: &Self::Fp) -> Self::Fp {
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let original = fe;
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let mut fe = -fe.double();
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fe.double_in_place();
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fe - original
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}
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}
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pub const FQ2_ZERO: Fq2 = QuadExt!(FQ_ZERO, FQ_ZERO);
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pub const FQ2_ONE: Fq2 = QuadExt!(FQ_ONE, FQ_ZERO);
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