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/*
* Big number math
* Copyright (c) 2006, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README 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 */
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