1189251Ssam/* 2189251Ssam * Big number math 3189251Ssam * Copyright (c) 2006, Jouni Malinen <j@w1.fi> 4189251Ssam * 5252726Srpaulo * This software may be distributed under the terms of the BSD license. 6252726Srpaulo * See README for more details. 7189251Ssam */ 8189251Ssam 9189251Ssam#ifndef BIGNUM_H 10189251Ssam#define BIGNUM_H 11189251Ssam 12189251Ssamstruct bignum; 13189251Ssam 14189251Ssamstruct bignum * bignum_init(void); 15189251Ssamvoid bignum_deinit(struct bignum *n); 16189251Ssamsize_t bignum_get_unsigned_bin_len(struct bignum *n); 17189251Ssamint bignum_get_unsigned_bin(const struct bignum *n, u8 *buf, size_t *len); 18189251Ssamint bignum_set_unsigned_bin(struct bignum *n, const u8 *buf, size_t len); 19189251Ssamint bignum_cmp(const struct bignum *a, const struct bignum *b); 20189251Ssamint bignum_cmp_d(const struct bignum *a, unsigned long b); 21189251Ssamint bignum_add(const struct bignum *a, const struct bignum *b, 22189251Ssam struct bignum *c); 23189251Ssamint bignum_sub(const struct bignum *a, const struct bignum *b, 24189251Ssam struct bignum *c); 25189251Ssamint bignum_mul(const struct bignum *a, const struct bignum *b, 26189251Ssam struct bignum *c); 27189251Ssamint bignum_mulmod(const struct bignum *a, const struct bignum *b, 28189251Ssam const struct bignum *c, struct bignum *d); 29189251Ssamint bignum_exptmod(const struct bignum *a, const struct bignum *b, 30189251Ssam const struct bignum *c, struct bignum *d); 31189251Ssam 32189251Ssam#endif /* BIGNUM_H */ 33