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Catch up with algebra (#106)

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Co-authored-by: Pratyush Mishra <pratyushmishra@berkeley.edu>
This commit is contained in:
Marcin
2022-07-29 21:16:16 +02:00
committed by GitHub
parent 76579d0fbb
commit 93e64df895
120 changed files with 934 additions and 1653 deletions
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62
bls12_377/src/curves/g1.rs
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@@ -1,21 +1,19 @@
use ark_ec::models::{
twisted_edwards_extended::{
GroupAffine as TEGroupAffine, GroupProjective as TEGroupProjective,
short_weierstrass::{Affine as SWAffine, SWCurveConfig},
twisted_edwards::{
Affine as TEAffine, MontCurveConfig, Projective as TEProjective, TECurveConfig,
},
ModelParameters, MontgomeryModelParameters, SWModelParameters, TEModelParameters,
CurveConfig,
};
use ark_ff::{MontFp, Zero};
use ark_ff::{Field, MontFp, Zero};
use core::ops::Neg;
use crate::{
fields::{FQ_ONE, FQ_ZERO},
Fq, Fr,
};
use crate::{Fq, Fr};
#[derive(Clone, Default, PartialEq, Eq)]
pub struct Parameters;
impl ModelParameters for Parameters {
impl CurveConfig for Parameters {
type BaseField = Fq;
type ScalarField = Fr;
@@ -24,22 +22,18 @@ impl ModelParameters for Parameters {
/// COFACTOR_INV = COFACTOR^{-1} mod r
/// = 5285428838741532253824584287042945485047145357130994810877
const COFACTOR_INV: Fr = MontFp!(
Fr,
"5285428838741532253824584287042945485047145357130994810877"
);
const COFACTOR_INV: Fr = MontFp!("5285428838741532253824584287042945485047145357130994810877");
}
impl SWModelParameters for Parameters {
impl SWCurveConfig for Parameters {
/// COEFF_A = 0
const COEFF_A: Fq = FQ_ZERO;
const COEFF_A: Fq = Fq::ZERO;
/// COEFF_B = 1
const COEFF_B: Fq = FQ_ONE;
const COEFF_B: Fq = Fq::ONE;
/// AFFINE_GENERATOR_COEFFS = (G1_GENERATOR_X, G1_GENERATOR_Y)
const AFFINE_GENERATOR_COEFFS: (Self::BaseField, Self::BaseField) =
(G1_GENERATOR_X, G1_GENERATOR_Y);
const GENERATOR: G1SWAffine = G1SWAffine::new_unchecked(G1_GENERATOR_X, G1_GENERATOR_Y);
#[inline(always)]
fn mul_by_a(_: &Self::BaseField) -> Self::BaseField {
@@ -47,8 +41,9 @@ impl SWModelParameters for Parameters {
}
}
pub type G1TEAffine = TEGroupAffine<Parameters>;
pub type G1TEProjective = TEGroupProjective<Parameters>;
pub type G1SWAffine = SWAffine<Parameters>;
pub type G1TEAffine = TEAffine<Parameters>;
pub type G1TEProjective = TEProjective<Parameters>;
/// Bls12_377::G1 also has a twisted Edwards form.
/// It can be obtained via the following script, implementing
@@ -97,18 +92,17 @@ pub type G1TEProjective = TEGroupProjective<Parameters>;
/// # b = -TE1d/TE1a
/// TE2d = Fp(122268283598675559488486339158635529096981886914877139579534153582033676785385790730042363341236035746924960903179)
/// ```
impl TEModelParameters for Parameters {
impl TECurveConfig for Parameters {
/// COEFF_A = -1
const COEFF_A: Fq = MontFp!(Fq, "-1");
const COEFF_A: Fq = MontFp!("-1");
/// COEFF_D = 122268283598675559488486339158635529096981886914877139579534153582033676785385790730042363341236035746924960903179 mod q
const COEFF_D: Fq = MontFp!(Fq, "122268283598675559488486339158635529096981886914877139579534153582033676785385790730042363341236035746924960903179");
const COEFF_D: Fq = MontFp!("122268283598675559488486339158635529096981886914877139579534153582033676785385790730042363341236035746924960903179");
/// AFFINE_GENERATOR_COEFFS = (GENERATOR_X, GENERATOR_Y)
const AFFINE_GENERATOR_COEFFS: (Self::BaseField, Self::BaseField) =
(TE_GENERATOR_X, TE_GENERATOR_Y);
const GENERATOR: G1TEAffine = G1TEAffine::new_unchecked(TE_GENERATOR_X, TE_GENERATOR_Y);
type MontgomeryModelParameters = Parameters;
type MontCurveConfig = Parameters;
/// Multiplication by `a` is multiply by `-1`.
#[inline(always)]
@@ -146,23 +140,23 @@ impl TEModelParameters for Parameters {
// # MB = s
// MB=Fp(10189023633222963290707194929886294091415157242906428298294512798502806398782149227503530278436336312243746741931)
// ```
impl MontgomeryModelParameters for Parameters {
impl MontCurveConfig for Parameters {
/// COEFF_A = 228097355113300204138531148905234651262148041026195375645000724271212049151994375092458297304264351187709081232384
const COEFF_A: Fq = MontFp!(Fq, "228097355113300204138531148905234651262148041026195375645000724271212049151994375092458297304264351187709081232384");
const COEFF_A: Fq = MontFp!("228097355113300204138531148905234651262148041026195375645000724271212049151994375092458297304264351187709081232384");
/// COEFF_B = 10189023633222963290707194929886294091415157242906428298294512798502806398782149227503530278436336312243746741931
const COEFF_B: Fq = MontFp!(Fq, "10189023633222963290707194929886294091415157242906428298294512798502806398782149227503530278436336312243746741931");
const COEFF_B: Fq = MontFp!("10189023633222963290707194929886294091415157242906428298294512798502806398782149227503530278436336312243746741931");
type TEModelParameters = Parameters;
type TECurveConfig = Parameters;
}
/// G1_GENERATOR_X =
/// 81937999373150964239938255573465948239988671502647976594219695644855304257327692006745978603320413799295628339695
pub const G1_GENERATOR_X: Fq = MontFp!(Fq, "81937999373150964239938255573465948239988671502647976594219695644855304257327692006745978603320413799295628339695");
pub const G1_GENERATOR_X: Fq = MontFp!("81937999373150964239938255573465948239988671502647976594219695644855304257327692006745978603320413799295628339695");
/// G1_GENERATOR_Y =
/// 241266749859715473739788878240585681733927191168601896383759122102112907357779751001206799952863815012735208165030
pub const G1_GENERATOR_Y: Fq = MontFp!(Fq, "241266749859715473739788878240585681733927191168601896383759122102112907357779751001206799952863815012735208165030");
pub const G1_GENERATOR_Y: Fq = MontFp!("241266749859715473739788878240585681733927191168601896383759122102112907357779751001206799952863815012735208165030");
// The generator for twisted Edward form is the same SW generator converted into
// the normalized TE form (TE2).
@@ -210,8 +204,8 @@ pub const G1_GENERATOR_Y: Fq = MontFp!(Fq, "241266749859715473739788878240585681
// ```
/// TE_GENERATOR_X =
/// 71222569531709137229370268896323705690285216175189308202338047559628438110820800641278662592954630774340654489393
pub const TE_GENERATOR_X: Fq = MontFp!(Fq, "71222569531709137229370268896323705690285216175189308202338047559628438110820800641278662592954630774340654489393");
pub const TE_GENERATOR_X: Fq = MontFp!("71222569531709137229370268896323705690285216175189308202338047559628438110820800641278662592954630774340654489393");
/// TE_GENERATOR_Y =
/// 6177051365529633638563236407038680211609544222665285371549726196884440490905471891908272386851767077598415378235
pub const TE_GENERATOR_Y: Fq = MontFp!(Fq, "6177051365529633638563236407038680211609544222665285371549726196884440490905471891908272386851767077598415378235");
pub const TE_GENERATOR_Y: Fq = MontFp!("6177051365529633638563236407038680211609544222665285371549726196884440490905471891908272386851767077598415378235");