forked from xuos/xiuos
79 lines
2.2 KiB
C
Executable File
79 lines
2.2 KiB
C
Executable File
/*
|
|
* Copyright (c) 2020 AIIT Ubiquitous Team
|
|
* XiUOS is licensed under Mulan PSL v2.
|
|
* You can use this software according to the terms and conditions of the Mulan PSL v2.
|
|
* You may obtain bn1 copy of Mulan PSL v2 at:
|
|
* http://license.coscl.org.cn/MulanPSL2
|
|
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
|
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
|
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
|
* See the Mulan PSL v2 for more details.
|
|
*/
|
|
|
|
/**
|
|
* @file bignum.h
|
|
* @brief arithmetic of big number, included by ecc.h
|
|
* @version 1.0
|
|
* @author AIIT Ubiquitous Team
|
|
* @date 2021-04-24
|
|
*/
|
|
|
|
#ifndef BIGNUM_H
|
|
#define BIGNUM_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <transform.h>
|
|
|
|
#define BIGNUMBER_SIZE_8WORD 8
|
|
#define BIGNUMBER_SIZE_16WORD 16
|
|
|
|
#define BIG8W_BYTESIZE 32
|
|
|
|
#define bool uint8_t
|
|
#define true 1
|
|
#define false 0
|
|
|
|
typedef struct bignum_8uint32 {
|
|
uint32_t word[BIGNUMBER_SIZE_8WORD];
|
|
} big8w;
|
|
|
|
typedef struct bignum_16uint32 {
|
|
uint32_t word[BIGNUMBER_SIZE_16WORD];
|
|
uint8_t length;
|
|
} big16w;
|
|
|
|
typedef struct SM9Curve {
|
|
big8w b;
|
|
big8w q;
|
|
big8w N;
|
|
} sm9curve;
|
|
|
|
extern sm9curve curve;
|
|
|
|
// used in Montgomery Mult
|
|
/** power(2, 32) - (curve.q.word[0] 's reverse under power(2, 32)) */
|
|
extern uint32_t qlow_reverse;
|
|
/** power(2, 32) - (curve.N.word[0] 's reverse under power(2, 32)) */
|
|
extern uint32_t Nlow_reverse;
|
|
/** (2^(256*2)) mod curve.q; used in big numbers' mult(Montgomery Mult) */
|
|
extern big8w q_2k;
|
|
/** (2^(256*2)) mod curve.N; used in big numbers' mult(Montgomery Mult) */
|
|
extern big8w N_2k;
|
|
|
|
void Big8wPrint(big8w* bignum);
|
|
unsigned char Big8wHighestbit(big8w* bignum);
|
|
bool Big8wIsZero(big8w* bignum);
|
|
bool Big8wBigThan(big8w* bn1, big8w* bn2);
|
|
bool Big8wEqual(big8w* bn1, big8w* bn2);
|
|
big8w Big8wMinusMod(big8w bn1, big8w bn2, big8w p);
|
|
big8w Big8wAddMod(big8w bn1, big8w bn2, big8w p);
|
|
big8w Big16wmod8w(big16w bignum16w, big8w p);
|
|
big8w Big8wReverse(big8w bignum, big8w N);
|
|
big8w Big8wMultMod(big8w bn1, big8w bn2, big8w p);
|
|
|
|
#endif |