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/******************************************************************************
*
* Copyright 2006-2015 Broadcom Corporation
*
* 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.
*
******************************************************************************/
/*******************************************************************************
*
* This file contains simple pairing algorithms
*
******************************************************************************/
#include <string.h>
#include "p_256_ecc_pp.h"
void p_256_init_curve() {
elliptic_curve_t* ec = &curve_p256;
ec->p[7] = 0xFFFFFFFF;
ec->p[6] = 0x00000001;
ec->p[5] = 0x0;
ec->p[4] = 0x0;
ec->p[3] = 0x0;
ec->p[2] = 0xFFFFFFFF;
ec->p[1] = 0xFFFFFFFF;
ec->p[0] = 0xFFFFFFFF;
memset(ec->omega, 0, KEY_LENGTH_DWORDS_P256);
memset(ec->a, 0, KEY_LENGTH_DWORDS_P256);
ec->a_minus3 = true;
// b
ec->b[7] = 0x5ac635d8;
ec->b[6] = 0xaa3a93e7;
ec->b[5] = 0xb3ebbd55;
ec->b[4] = 0x769886bc;
ec->b[3] = 0x651d06b0;
ec->b[2] = 0xcc53b0f6;
ec->b[1] = 0x3bce3c3e;
ec->b[0] = 0x27d2604b;
// base point
ec->G.x[7] = 0x6b17d1f2;
ec->G.x[6] = 0xe12c4247;
ec->G.x[5] = 0xf8bce6e5;
ec->G.x[4] = 0x63a440f2;
ec->G.x[3] = 0x77037d81;
ec->G.x[2] = 0x2deb33a0;
ec->G.x[1] = 0xf4a13945;
ec->G.x[0] = 0xd898c296;
ec->G.y[7] = 0x4fe342e2;
ec->G.y[6] = 0xfe1a7f9b;
ec->G.y[5] = 0x8ee7eb4a;
ec->G.y[4] = 0x7c0f9e16;
ec->G.y[3] = 0x2bce3357;
ec->G.y[2] = 0x6b315ece;
ec->G.y[1] = 0xcbb64068;
ec->G.y[0] = 0x37bf51f5;
}
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