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17 lines
723 B
17 lines
723 B
use crate::fields::{cubic_extension::*, fp::FpVar};
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use ark_ff::fields::{CubicExtParameters, Fp3Parameters, Fp3ParamsWrapper};
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/// A cubic extension field constructed over a prime field.
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/// This is the R1CS equivalent of `ark_ff::Fp3<P>`.
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pub type Fp3Var<P> = CubicExtVar<FpVar<<P as Fp3Parameters>::Fp>, Fp3ParamsWrapper<P>>;
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impl<P: Fp3Parameters> CubicExtVarParams<FpVar<P::Fp>> for Fp3ParamsWrapper<P> {
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fn mul_base_field_vars_by_frob_coeff(
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c1: &mut FpVar<P::Fp>,
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c2: &mut FpVar<P::Fp>,
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power: usize,
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) {
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*c1 *= Self::FROBENIUS_COEFF_C1[power % Self::DEGREE_OVER_BASE_PRIME_FIELD];
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*c2 *= Self::FROBENIUS_COEFF_C2[power % Self::DEGREE_OVER_BASE_PRIME_FIELD];
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}
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}
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