Momentum-Apps/flipbip/lib/crypto/nist256p1.c

/**
 * Copyright (c) 2013-2014 Tomas Dzetkulic
 * Copyright (c) 2013-2014 Pavol Rusnak
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include "nist256p1.h"

const ecdsa_curve nist256p1 = {
    /* .prime */ {/*.val =*/{
        0x1fffffff,
        0x1fffffff,
        0x1fffffff,
        0x000001ff,
        0x00000000,
        0x00000000,
        0x00040000,
        0x1fe00000,
        0xffffff}},

    /* G */
    {/*.x =*/{/*.val =*/{
         0x1898c296,
         0x0509ca2e,
         0x1acce83d,
         0x06fb025b,
         0x040f2770,
         0x1372b1d2,
         0x091fe2f3,
         0x1e5c2588,
         0x6b17d1}},
     /*.y =*/{/*.val =*/{
         0x17bf51f5,
         0x1db20341,
         0x0c57b3b2,
         0x1c66aed6,
         0x19e162bc,
         0x15a53e07,
         0x1e6e3b9f,
         0x1c5fc34f,
         0x4fe342}}},

    /* order */
    {/*.val =*/{
        0x1c632551,
        0x1dce5617,
        0x05e7a13c,
        0x0df55b4e,
        0x1ffffbce,
        0x1fffffff,
        0x0003ffff,
        0x1fe00000,
        0xffffff}},

    /* order_half */
    {/*.val =*/{
        0x1e3192a8,
        0x0ee72b0b,
        0x02f3d09e,
        0x06faada7,
        0x1ffffde7,
        0x1fffffff,
        0x0001ffff,
        0x1ff00000,
        0x7fffff}},

    /* a */ -3,

    /* b */
    {/*.val =*/{
        0x07d2604b,
        0x1e71e1f1,
        0x14ec3d8e,
        0x1a0d6198,
        0x086bc651,
        0x1eaabb4c,
        0x0f9ecfae,
        0x1b154752,
        0x005ac635}}

#if USE_PRECOMPUTED_CP
    ,
    /* cp */
    {
#include "nist256p1.table"
    }
#endif
};

const curve_info nist256p1_info = {
    .bip32_name = "Nist256p1 seed",
    .params = &nist256p1,
    .hasher_base58 = HASHER_SHA2D,
    .hasher_sign = HASHER_SHA2D,
    .hasher_pubkey = HASHER_SHA2_RIPEMD,
    .hasher_script = HASHER_SHA2,
};