ceremonyclient/ec/bls48581/CONFIG_FIELD.go

/*
 * Copyright (c) 2012-2020 MIRACL UK Ltd.
 *
 * This file is part of MIRACL Core
 * (see https://github.com/miracl/core).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package bls48581

// Modulus types
const NOT_SPECIAL int = 0
const PSEUDO_MERSENNE int = 1
const MONTGOMERY_FRIENDLY int = 2
const GENERALISED_MERSENNE int = 3

const NEGATOWER int = 0
const POSITOWER int = 1

// Modulus details
const MODBITS uint = 581        /* Number of bits in Modulus */
const PM1D2 uint = 1            /* Modulus mod 8 */
const RIADZ int = 2             /* hash-to-point Z */
const RIADZG2A int = 2          /* G2 hash-to-point Z */
const RIADZG2B int = 0          /* G2 hash-to-point Z */
const MODTYPE int = NOT_SPECIAL //NOT_SPECIAL
const QNRI int = 0              // Fp2 QNR
const TOWER int = POSITOWER     // Tower type
const FEXCESS int32 = ((int32(1) << 14) - 1)

// Modulus Masks
const OMASK Chunk = ((Chunk(-1)) << (MODBITS % BASEBITS))
const TBITS uint = MODBITS % BASEBITS // Number of active bits in top word
const TMASK Chunk = (Chunk(1) << TBITS) - 1

const BIG_ENDIAN_SIGN bool = false