You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
969 B
38 lines
969 B
use super::*;
|
|
use ark_ff::{field_new, fields::*};
|
|
|
|
pub type Fq2 = Fp2<Fq2Parameters>;
|
|
|
|
pub struct Fq2Parameters;
|
|
|
|
impl Fp2Parameters for Fq2Parameters {
|
|
type Fp = Fq;
|
|
|
|
/// NONRESIDUE = -5
|
|
#[rustfmt::skip]
|
|
const NONRESIDUE: Fq = field_new!(Fq, "-5");
|
|
|
|
/// QUADRATIC_NONRESIDUE = U
|
|
#[rustfmt::skip]
|
|
const QUADRATIC_NONRESIDUE: (Fq, Fq) = (FQ_ZERO, FQ_ONE);
|
|
|
|
/// Coefficients for the Frobenius automorphism.
|
|
#[rustfmt::skip]
|
|
const FROBENIUS_COEFF_FP2_C1: &'static [Fq] = &[
|
|
// NONRESIDUE**(((q^0) - 1) / 2)
|
|
FQ_ONE,
|
|
// NONRESIDUE**(((q^1) - 1) / 2)
|
|
field_new!(Fq, "-1"),
|
|
];
|
|
|
|
#[inline(always)]
|
|
fn mul_fp_by_nonresidue(fe: &Self::Fp) -> Self::Fp {
|
|
let original = fe;
|
|
let mut fe = -fe.double();
|
|
fe.double_in_place();
|
|
fe - original
|
|
}
|
|
}
|
|
|
|
pub const FQ2_ZERO: Fq2 = field_new!(Fq2, FQ_ZERO, FQ_ZERO);
|
|
pub const FQ2_ONE: Fq2 = field_new!(Fq2, FQ_ONE, FQ_ZERO);
|