1 /******************************************************************************
3 * Copyright (C) 2006-2015 Broadcom Corporation
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 ******************************************************************************/
19 /******************************************************************************
21 * This file contains simple pairing algorithms using Elliptic Curve
22 *Cryptography for private public key
24 ******************************************************************************/
29 #include "p_256_multprecision.h"
32 uint32_t x[KEY_LENGTH_DWORDS_P256];
33 uint32_t y[KEY_LENGTH_DWORDS_P256];
34 uint32_t z[KEY_LENGTH_DWORDS_P256];
38 // curve's coefficients
39 uint32_t a[KEY_LENGTH_DWORDS_P256];
40 uint32_t b[KEY_LENGTH_DWORDS_P256];
46 uint32_t p[KEY_LENGTH_DWORDS_P256];
48 // Omega, p = 2^m -omega
49 uint32_t omega[KEY_LENGTH_DWORDS_P256];
51 // base point, a point on E of order r
56 extern elliptic_curve_t curve;
57 extern elliptic_curve_t curve_p256;
59 bool ECC_ValidatePoint(const Point& p);
61 void ECC_PointMult_Bin_NAF(Point* q, Point* p, uint32_t* n, uint32_t keyLength);
63 #define ECC_PointMult(q, p, n, keyLength) \
64 ECC_PointMult_Bin_NAF(q, p, n, keyLength)
66 void p_256_init_curve(uint32_t keyLength);