/* * 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. */ #include "arch.h" #include "fp_F25519.h" namespace F25519 { /* Curve 25519 */ #if CHUNK==16 using namespace B256_13; // Base Bits= 13 const BIG Modulus= {0x1FED,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0x1FFF,0xFF}; const BIG ROI= {0xB0,0x1075,0x9D2,0x1C36,0xC4E,0x123C,0x14BF,0xD5,0x318,0x197A,0x15E9,0x1BF7,0x993,0x680,0xCAD,0x1BE1,0xFC1,0x402,0xC9,0x57}; const BIG R2modp= {0x400,0x2D,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0}; const chunk MConst= 0x13; #endif #if CHUNK==32 using namespace B256_29; // Base Bits= 29 const BIG Modulus= {0x1FFFFFED,0x1FFFFFFF,0x1FFFFFFF,0x1FFFFFFF,0x1FFFFFFF,0x1FFFFFFF,0x1FFFFFFF,0x1FFFFFFF,0x7FFFFF}; const BIG ROI= {0xA0EA0B0,0x770D93A,0xBF91E31,0x6300D5A,0x1D7A72F4,0x4C9EFD,0x1C2CAD34,0x1009F83B,0x2B8324}; const BIG R2modp= {0x169000,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0}; const chunk MConst= 0x13; #endif #if CHUNK==64 using namespace B256_56; // Base Bits= 56 const BIG Modulus= {0xFFFFFFFFFFFFEDL,0xFFFFFFFFFFFFFFL,0xFFFFFFFFFFFFFFL,0xFFFFFFFFFFFFFFL,0x7FFFFFFFL}; const BIG ROI= {0xEE1B274A0EA0B0L,0x1806AD2FE478C4L,0x993DFBD7A72F43L,0x4FC1DF0B2B4D00L,0x2B832480L}; const BIG R2modp= {0xA4000000000000L,0x5L,0x0L,0x0L,0x0L}; const chunk MConst= 0x13L; #endif }