You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
1.9 KiB
66 lines
1.9 KiB
/****************************************************************************** |
|
* |
|
* Copyright (C) 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 using Elliptic Curve |
|
*Cryptography for private public key |
|
* |
|
******************************************************************************/ |
|
|
|
#pragma once |
|
|
|
#include <cstdbool> |
|
#include "p_256_multprecision.h" |
|
|
|
typedef struct { |
|
uint32_t x[KEY_LENGTH_DWORDS_P256]; |
|
uint32_t y[KEY_LENGTH_DWORDS_P256]; |
|
uint32_t z[KEY_LENGTH_DWORDS_P256]; |
|
} Point; |
|
|
|
typedef struct { |
|
// curve's coefficients |
|
uint32_t a[KEY_LENGTH_DWORDS_P256]; |
|
uint32_t b[KEY_LENGTH_DWORDS_P256]; |
|
|
|
// whether a is -3 |
|
int a_minus3; |
|
|
|
// prime modulus |
|
uint32_t p[KEY_LENGTH_DWORDS_P256]; |
|
|
|
// Omega, p = 2^m -omega |
|
uint32_t omega[KEY_LENGTH_DWORDS_P256]; |
|
|
|
// base point, a point on E of order r |
|
Point G; |
|
|
|
} elliptic_curve_t; |
|
|
|
extern elliptic_curve_t curve; |
|
extern elliptic_curve_t curve_p256; |
|
|
|
bool ECC_ValidatePoint(const Point& p); |
|
|
|
void ECC_PointMult_Bin_NAF(Point* q, Point* p, uint32_t* n, uint32_t keyLength); |
|
|
|
#define ECC_PointMult(q, p, n, keyLength) \ |
|
ECC_PointMult_Bin_NAF(q, p, n, keyLength) |
|
|
|
void p_256_init_curve(uint32_t keyLength);
|
|
|