39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
|
/*
|
||
|
|
* Big number math
|
||
|
|
* Copyright (c) 2006, Jouni Malinen <j@w1.fi>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
||
|
|
* license.
|
||
|
|
*
|
||
|
|
* See README and COPYING for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef BIGNUM_H
|
||
|
|
#define BIGNUM_H
|
||
|
|
|
||
|
|
struct bignum;
|
||
|
|
|
||
|
|
struct bignum * bignum_init(void);
|
||
|
|
void bignum_deinit(struct bignum *n);
|
||
|
|
size_t bignum_get_unsigned_bin_len(struct bignum *n);
|
||
|
|
int bignum_get_unsigned_bin(const struct bignum *n, u8 *buf, size_t *len);
|
||
|
|
int bignum_set_unsigned_bin(struct bignum *n, const u8 *buf, size_t len);
|
||
|
|
int bignum_cmp(const struct bignum *a, const struct bignum *b);
|
||
|
|
int bignum_cmp_d(const struct bignum *a, unsigned long b);
|
||
|
|
int bignum_add(const struct bignum *a, const struct bignum *b,
|
||
|
|
struct bignum *c);
|
||
|
|
int bignum_sub(const struct bignum *a, const struct bignum *b,
|
||
|
|
struct bignum *c);
|
||
|
|
int bignum_mul(const struct bignum *a, const struct bignum *b,
|
||
|
|
struct bignum *c);
|
||
|
|
int bignum_mulmod(const struct bignum *a, const struct bignum *b,
|
||
|
|
const struct bignum *c, struct bignum *d);
|
||
|
|
int bignum_exptmod(const struct bignum *a, const struct bignum *b,
|
||
|
|
const struct bignum *c, struct bignum *d);
|
||
|
|
|
||
|
|
#endif /* BIGNUM_H */
|