mirror of
https://github.com/espressif/ESP8266_RTOS_SDK.git
synced 2025-10-20 22:31:30 +08:00
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/* wolfmath.h
|
|
*
|
|
* Copyright (C) 2006-2018 wolfSSL Inc. All rights reserved.
|
|
*
|
|
* This file is part of wolfSSL.
|
|
*
|
|
* Contact licensing@wolfssl.com with any questions or comments.
|
|
*
|
|
* http://www.wolfssl.com
|
|
*/
|
|
|
|
|
|
#if defined(HAVE_WOLF_BIGINT) && !defined(WOLF_BIGINT_DEFINED)
|
|
/* raw big integer */
|
|
typedef struct WC_BIGINT {
|
|
byte* buf;
|
|
word32 len;
|
|
void* heap;
|
|
} WC_BIGINT;
|
|
|
|
#define WOLF_BIGINT_DEFINED
|
|
#endif
|
|
|
|
|
|
/* only define functions if mp_int has been declared */
|
|
#ifdef MP_INT_DEFINED
|
|
|
|
#ifndef __WOLFMATH_H__
|
|
#define __WOLFMATH_H__
|
|
|
|
/* 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 wolfssl_word wc_off_on_addr[2];
|
|
#endif
|
|
|
|
/* common math functions */
|
|
int get_digit_count(mp_int* a);
|
|
mp_digit get_digit(mp_int* a, int n);
|
|
int get_rand_digit(WC_RNG* rng, mp_digit* d);
|
|
int mp_rand(mp_int* a, int digits, WC_RNG* rng);
|
|
|
|
|
|
#ifdef HAVE_WOLF_BIGINT
|
|
void wc_bigint_init(WC_BIGINT* a);
|
|
int wc_bigint_alloc(WC_BIGINT* a, word32 sz);
|
|
int wc_bigint_from_unsigned_bin(WC_BIGINT* a, const byte* in, word32 inlen);
|
|
int wc_bigint_to_unsigned_bin(WC_BIGINT* a, byte* out, word32* outlen);
|
|
void wc_bigint_zero(WC_BIGINT* a);
|
|
void wc_bigint_free(WC_BIGINT* a);
|
|
|
|
int wc_mp_to_bigint(mp_int* src, WC_BIGINT* dst);
|
|
int wc_mp_to_bigint_sz(mp_int* src, WC_BIGINT* dst, word32 sz);
|
|
int wc_bigint_to_mp(WC_BIGINT* src, mp_int* dst);
|
|
#endif /* HAVE_WOLF_BIGINT */
|
|
|
|
#endif /* __WOLFMATH_H__ */
|
|
|
|
#endif /* MP_INT_DEFINED */
|