126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/* wolfmath.h
|
|
*
|
|
* Copyright (C) 2006-2023 wolfSSL Inc.
|
|
*
|
|
* This file is part of wolfSSL.
|
|
*
|
|
* wolfSSL is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* wolfSSL is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
|
|
*/
|
|
|
|
/*
|
|
DESCRIPTION
|
|
This library provides big integer math functions.
|
|
|
|
*/
|
|
#ifndef __WOLFMATH_H__
|
|
#define __WOLFMATH_H__
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <wolfssl/wolfcrypt/types.h>
|
|
|
|
#ifdef WOLFSSL_PUBLIC_MP
|
|
#define MP_API WOLFSSL_API
|
|
#else
|
|
#define MP_API WOLFSSL_LOCAL
|
|
#endif
|
|
|
|
|
|
#if defined(USE_FAST_MATH)
|
|
#include <wolfssl/wolfcrypt/tfm.h>
|
|
#elif defined(USE_INTEGER_HEAP_MATH)
|
|
#include <wolfssl/wolfcrypt/integer.h>
|
|
#else
|
|
#include <wolfssl/wolfcrypt/sp_int.h>
|
|
#endif
|
|
|
|
#if !defined(NO_BIG_INT) || defined(WOLFSSL_SP_MATH)
|
|
#include <wolfssl/wolfcrypt/random.h>
|
|
#endif
|
|
|
|
#ifndef MIN
|
|
#define MIN(x,y) ((x)<(y)?(x):(y))
|
|
#endif
|
|
|
|
#ifndef MAX
|
|
#define MAX(x,y) ((x)>(y)?(x):(y))
|
|
#endif
|
|
|
|
/* timing resistance array */
|
|
#if !defined(WC_NO_CACHE_RESISTANT) && \
|
|
((defined(HAVE_ECC) && defined(ECC_TIMING_RESISTANT)) || \
|
|
(defined(USE_FAST_MATH) && defined(TFM_TIMING_RESISTANT)))
|
|
|
|
extern const wc_ptr_t wc_off_on_addr[2];
|
|
#endif
|
|
|
|
#if !defined(NO_BIG_INT) || defined(WOLFSSL_SP_MATH)
|
|
/* common math functions */
|
|
MP_API int get_digit_count(const mp_int* a);
|
|
MP_API mp_digit get_digit(const mp_int* a, int n);
|
|
MP_API int get_rand_digit(WC_RNG* rng, mp_digit* d);
|
|
WOLFSSL_LOCAL void mp_reverse(unsigned char *s, int len);
|
|
|
|
WOLFSSL_API int mp_cond_copy(mp_int* a, int copy, mp_int* b);
|
|
WOLFSSL_API int mp_rand(mp_int* a, int digits, WC_RNG* rng);
|
|
#endif
|
|
|
|
#define WC_TYPE_HEX_STR 1
|
|
#define WC_TYPE_UNSIGNED_BIN 2
|
|
#if defined(WOLFSSL_QNX_CAAM) || defined(WOLFSSL_IMXRT1170_CAAM)
|
|
#define WC_TYPE_BLACK_KEY 3
|
|
#endif
|
|
|
|
#if defined(HAVE_ECC) || defined(WOLFSSL_EXPORT_INT)
|
|
WOLFSSL_API int wc_export_int(mp_int* mp, byte* buf, word32* len,
|
|
word32 keySz, int encType);
|
|
#endif
|
|
|
|
#ifdef HAVE_WOLF_BIGINT
|
|
#if !defined(WOLF_BIGINT_DEFINED)
|
|
/* raw big integer */
|
|
typedef struct WC_BIGINT {
|
|
byte* buf;
|
|
word32 len;
|
|
void* heap;
|
|
} WC_BIGINT;
|
|
#define WOLF_BIGINT_DEFINED
|
|
#endif
|
|
|
|
WOLFSSL_LOCAL void wc_bigint_init(WC_BIGINT* a);
|
|
WOLFSSL_LOCAL int wc_bigint_alloc(WC_BIGINT* a, word32 sz);
|
|
WOLFSSL_LOCAL int wc_bigint_from_unsigned_bin(WC_BIGINT* a, const byte* in, word32 inlen);
|
|
WOLFSSL_LOCAL int wc_bigint_to_unsigned_bin(WC_BIGINT* a, byte* out, word32* outlen);
|
|
WOLFSSL_LOCAL void wc_bigint_zero(WC_BIGINT* a);
|
|
WOLFSSL_LOCAL void wc_bigint_free(WC_BIGINT* a);
|
|
|
|
WOLFSSL_LOCAL int wc_mp_to_bigint(mp_int* src, WC_BIGINT* dst);
|
|
WOLFSSL_LOCAL int wc_mp_to_bigint_sz(mp_int* src, WC_BIGINT* dst, word32 sz);
|
|
WOLFSSL_LOCAL int wc_bigint_to_mp(WC_BIGINT* src, mp_int* dst);
|
|
#endif /* HAVE_WOLF_BIGINT */
|
|
|
|
|
|
#ifdef HAVE_WC_INTROSPECTION
|
|
WOLFSSL_API const char *wc_GetMathInfo(void);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* __WOLFMATH_H__ */
|