18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Big number math 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2006, Jouni Malinen <j@w1.fi> 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef BIGNUM_H 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define BIGNUM_H 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct bignum; 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct bignum * bignum_init(void); 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid bignum_deinit(struct bignum *n); 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtsize_t bignum_get_unsigned_bin_len(struct bignum *n); 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_get_unsigned_bin(const struct bignum *n, u8 *buf, size_t *len); 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_set_unsigned_bin(struct bignum *n, const u8 *buf, size_t len); 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_cmp(const struct bignum *a, const struct bignum *b); 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_cmp_d(const struct bignum *a, unsigned long b); 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_add(const struct bignum *a, const struct bignum *b, 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct bignum *c); 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_sub(const struct bignum *a, const struct bignum *b, 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct bignum *c); 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_mul(const struct bignum *a, const struct bignum *b, 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct bignum *c); 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_mulmod(const struct bignum *a, const struct bignum *b, 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct bignum *c, struct bignum *d); 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint bignum_exptmod(const struct bignum *a, const struct bignum *b, 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct bignum *c, struct bignum *d); 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* BIGNUM_H */ 33