Upgrade to work with latest ark-ff (#95)

Co-authored-by: Sun <huachuang20@gmail.com>

bls12_377/src/fields/fq.rs

@@ -1,121 +1,10 @@
-use ark_ff::{
-    biginteger::{BigInt, BigInteger384 as BigInteger},
-    fields::*,
-};
+use ark_ff::fields::{Fp384, MontBackend, MontConfig, MontFp};
 
-pub type Fq = Fp384<FqParameters>;
+#[derive(MontConfig)]
+#[modulus = "258664426012969094010652733694893533536393512754914660539884262666720468348340822774968888139573360124440321458177"]
+#[generator = "15"]
+pub struct FqConfig;
+pub type Fq = Fp384<MontBackend<FqConfig, 6>>;
 
-pub struct FqParameters;
-
-impl Fp384Parameters for FqParameters {}
-impl FftParameters for FqParameters {
-    type BigInt = BigInteger;
-
-    const TWO_ADICITY: u32 = 46u32;
-
-    #[rustfmt::skip]
-    const TWO_ADIC_ROOT_OF_UNITY: BigInteger = BigInt::new([
-        2022196864061697551u64,
-        17419102863309525423u64,
-        8564289679875062096u64,
-        17152078065055548215u64,
-        17966377291017729567u64,
-        68610905582439508u64,
-    ]);
-}
-impl FpParameters for FqParameters {
-    /// MODULUS = 258664426012969094010652733694893533536393512754914660539884262666720468348340822774968888139573360124440321458177
-    #[rustfmt::skip]
-    const MODULUS: BigInteger = BigInt::new([
-        0x8508c00000000001,
-        0x170b5d4430000000,
-        0x1ef3622fba094800,
-        0x1a22d9f300f5138f,
-        0xc63b05c06ca1493b,
-        0x1ae3a4617c510ea,
-    ]);
-
-    const MODULUS_BITS: u32 = 377;
-
-    const CAPACITY: u32 = Self::MODULUS_BITS - 1;
-
-    const REPR_SHAVE_BITS: u32 = 7;
-
-    /// R = 85013442423176922659824578519796707547925331718418265885885478904210582549405549618995257669764901891699128663912
-    #[rustfmt::skip]
-    const R: BigInteger = BigInt::new([
-        202099033278250856u64,
-        5854854902718660529u64,
-        11492539364873682930u64,
-        8885205928937022213u64,
-        5545221690922665192u64,
-        39800542322357402u64,
-    ]);
-
-    #[rustfmt::skip]
-    const R2: BigInteger = BigInt::new([
-        0xb786686c9400cd22,
-        0x329fcaab00431b1,
-        0x22a5f11162d6b46d,
-        0xbfdf7d03827dc3ac,
-        0x837e92f041790bf9,
-        0x6dfccb1e914b88,
-    ]);
-
-    const INV: u64 = 9586122913090633727u64;
-
-    /// GENERATOR = -5
-    /// Encoded in Montgomery form, so the value here is
-    /// (-5 * R) % q = 92261639910053574722182574790803529333160366917737991650341130812388023949653897454961487930322210790384999596794
-    #[rustfmt::skip]
-    const GENERATOR: BigInteger = BigInt::new([
-        0xfc0b8000000002fa,
-        0x97d39cf6e000018b,
-        0x2072420fbfa05044,
-        0xcbbcbd50d97c3802,
-        0xbaf1ec35813f9eb,
-        0x9974a2c0945ad2,
-    ]);
-
-    #[rustfmt::skip]
-    const MODULUS_MINUS_ONE_DIV_TWO: BigInteger = BigInt::new([
-        0x4284600000000000,
-        0xb85aea218000000,
-        0x8f79b117dd04a400,
-        0x8d116cf9807a89c7,
-        0x631d82e03650a49d,
-        0xd71d230be28875,
-    ]);
-
-    // T and T_MINUS_ONE_DIV_TWO, where MODULUS - 1 = 2^S * T
-    // For T coprime to 2
-
-    // T = (MODULUS - 1) // 2^S =
-    // 3675842578061421676390135839012792950148785745837396071634149488243117337281387659330802195819009059
-    #[rustfmt::skip]
-    const T: BigInteger = BigInt::new([
-        0x7510c00000021423,
-        0x88bee82520005c2d,
-        0x67cc03d44e3c7bcd,
-        0x1701b28524ec688b,
-        0xe9185f1443ab18ec,
-        0x6b8,
-    ]);
-
-    // (T - 1) // 2 =
-    // 1837921289030710838195067919506396475074392872918698035817074744121558668640693829665401097909504529
-    #[rustfmt::skip]
-    const T_MINUS_ONE_DIV_TWO: BigInteger = BigInt::new([
-        0xba88600000010a11,
-        0xc45f741290002e16,
-        0xb3e601ea271e3de6,
-        0xb80d94292763445,
-        0x748c2f8a21d58c76,
-        0x35c,
-    ]);
-}
-
-#[allow(dead_code)]
-pub const FQ_ONE: Fq = Fq::new(FqParameters::R);
-#[allow(dead_code)]
-pub const FQ_ZERO: Fq = Fq::new(BigInt::new([0, 0, 0, 0, 0, 0]));
+pub const FQ_ONE: Fq = Fq::new(FqConfig::R);
+pub const FQ_ZERO: Fq = MontFp!(Fq, "0");