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74 lines
2.9 KiB
74 lines
2.9 KiB
use ark_ec::models::{ModelParameters, SWModelParameters};
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use ark_ff::{field_new, Zero};
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use crate::{Fq, Fq2, Fr};
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#[derive(Clone, Default, PartialEq, Eq)]
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pub struct Parameters;
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impl ModelParameters for Parameters {
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type BaseField = Fq2;
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type ScalarField = Fr;
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}
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impl SWModelParameters for Parameters {
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/// COEFF_A = [0, 0]
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#[rustfmt::skip]
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const COEFF_A: Fq2 = field_new!(Fq2, field_new!(Fq, "0"), field_new!(Fq, "0"));
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/// COEFF_B = 3/(u+9)
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/// = (19485874751759354771024239261021720505790618469301721065564631296452457478373, 266929791119991161246907387137283842545076965332900288569378510910307636690)
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#[rustfmt::skip]
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const COEFF_B: Fq2 = field_new!(Fq2,
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field_new!(Fq, "19485874751759354771024239261021720505790618469301721065564631296452457478373"),
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field_new!(Fq, "266929791119991161246907387137283842545076965332900288569378510910307636690"),
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);
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/// COFACTOR = (36 * X^4) + (36 * X^3) + (30 * X^2) + 6*X + 1
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/// = 21888242871839275222246405745257275088844257914179612981679871602714643921549
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#[rustfmt::skip]
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const COFACTOR: &'static [u64] = &[
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0x345f2299c0f9fa8d,
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0x06ceecda572a2489,
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0xb85045b68181585e,
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0x30644e72e131a029,
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];
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/// COFACTOR_INV = COFACTOR^{-1} mod r
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#[rustfmt::skip]
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const COFACTOR_INV: Fr = field_new!(Fr, "10944121435919637613327163357776759465618812564592884533313067514031822496649");
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/// AFFINE_GENERATOR_COEFFS = (G2_GENERATOR_X, G2_GENERATOR_Y)
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const AFFINE_GENERATOR_COEFFS: (Self::BaseField, Self::BaseField) =
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(G2_GENERATOR_X, G2_GENERATOR_Y);
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#[inline(always)]
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fn mul_by_a(_: &Self::BaseField) -> Self::BaseField {
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Self::BaseField::zero()
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}
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}
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#[rustfmt::skip]
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pub const G2_GENERATOR_X: Fq2 = field_new!(Fq2, G2_GENERATOR_X_C0, G2_GENERATOR_X_C1);
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#[rustfmt::skip]
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pub const G2_GENERATOR_Y: Fq2 = field_new!(Fq2, G2_GENERATOR_Y_C0, G2_GENERATOR_Y_C1);
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/// G2_GENERATOR_X_C0 =
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/// 10857046999023057135944570762232829481370756359578518086990519993285655852781
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#[rustfmt::skip]
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pub const G2_GENERATOR_X_C0: Fq = field_new!(Fq, "10857046999023057135944570762232829481370756359578518086990519993285655852781");
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/// G2_GENERATOR_X_C1 =
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/// 11559732032986387107991004021392285783925812861821192530917403151452391805634
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#[rustfmt::skip]
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pub const G2_GENERATOR_X_C1: Fq = field_new!(Fq, "11559732032986387107991004021392285783925812861821192530917403151452391805634");
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/// G2_GENERATOR_Y_C0 =
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/// 8495653923123431417604973247489272438418190587263600148770280649306958101930
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#[rustfmt::skip]
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pub const G2_GENERATOR_Y_C0: Fq = field_new!(Fq, "8495653923123431417604973247489272438418190587263600148770280649306958101930");
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/// G2_GENERATOR_Y_C1 =
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/// 4082367875863433681332203403145435568316851327593401208105741076214120093531
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#[rustfmt::skip]
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pub const G2_GENERATOR_Y_C1: Fq = field_new!(Fq, "4082367875863433681332203403145435568316851327593401208105741076214120093531");
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