ark-r1cs-std/r1cs-std/src/fields/fp2.rs
r1cs-std/src/fields/fp2.rsRaw
1use crate::fields::{fp::FpVar, quadratic_extension::*};
2use algebra::fields::{Fp2Parameters, Fp2ParamsWrapper, QuadExtParameters};
3
4/// A quadratic extension field constructed over a prime field.
5/// This is the R1CS equivalent of `algebra_core::Fp2<P>`.
6pub type Fp2Var<P> = QuadExtVar<FpVar<<P as Fp2Parameters>::Fp>, Fp2ParamsWrapper<P>>;
7
8impl<P: Fp2Parameters> QuadExtVarParams<FpVar<P::Fp>> for Fp2ParamsWrapper<P> {
9 fn mul_base_field_var_by_frob_coeff(fe: &mut FpVar<P::Fp>, power: usize) {
10 *fe *= Self::FROBENIUS_COEFF_C1[power % Self::DEGREE_OVER_BASE_PRIME_FIELD];
11 }
12}