The Android Open Source Project | 845e012 | 2009-03-03 19:31:34 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Big number math |
| 3 | * Copyright (c) 2006, Jouni Malinen <j@w1.fi> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * Alternatively, this software may be distributed under the terms of BSD |
| 10 | * license. |
| 11 | * |
| 12 | * See README and COPYING for more details. |
| 13 | */ |
| 14 | |
| 15 | #ifndef BIGNUM_H |
| 16 | #define BIGNUM_H |
| 17 | |
| 18 | struct bignum; |
| 19 | |
| 20 | struct bignum * bignum_init(void); |
| 21 | void bignum_deinit(struct bignum *n); |
| 22 | size_t bignum_get_unsigned_bin_len(struct bignum *n); |
| 23 | int bignum_get_unsigned_bin(const struct bignum *n, u8 *buf, size_t *len); |
| 24 | int bignum_set_unsigned_bin(struct bignum *n, const u8 *buf, size_t len); |
| 25 | int bignum_cmp(const struct bignum *a, const struct bignum *b); |
| 26 | int bignum_cmp_d(const struct bignum *a, unsigned long b); |
| 27 | int bignum_add(const struct bignum *a, const struct bignum *b, |
| 28 | struct bignum *c); |
| 29 | int bignum_sub(const struct bignum *a, const struct bignum *b, |
| 30 | struct bignum *c); |
| 31 | int bignum_mul(const struct bignum *a, const struct bignum *b, |
| 32 | struct bignum *c); |
| 33 | int bignum_mulmod(const struct bignum *a, const struct bignum *b, |
| 34 | const struct bignum *c, struct bignum *d); |
| 35 | int bignum_exptmod(const struct bignum *a, const struct bignum *b, |
| 36 | const struct bignum *c, struct bignum *d); |
| 37 | |
| 38 | #endif /* BIGNUM_H */ |