3 * Blowfish block cipher.
6 /* nettle, low-level cryptographics library
8 * Copyright (C) 1998, 2001 FSF, Ray Dassen, Niels Möller
10 * The nettle library is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 of the License, or (at your
13 * option) any later version.
15 * The nettle library is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
18 * License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with the nettle library; see the file COPYING.LIB. If not, write to
22 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
26 #ifndef NETTLE_BLOWFISH_H_INCLUDED
27 #define NETTLE_BLOWFISH_H_INCLUDED
29 #include "nettle-types.h"
36 #define blowfish_set_key nettle_blowfish_set_key
37 #define blowfish_encrypt nettle_blowfish_encrypt
38 #define blowfish_decrypt nettle_blowfish_decrypt
40 #define BLOWFISH_BLOCK_SIZE 8
42 /* Variable key size between 64 and 448 bits. */
43 #define BLOWFISH_MIN_KEY_SIZE 8
44 #define BLOWFISH_MAX_KEY_SIZE 56
46 /* Default to 128 bits */
47 #define BLOWFISH_KEY_SIZE 16
49 #define _BLOWFISH_ROUNDS 16
54 uint32_t p[_BLOWFISH_ROUNDS+2];
57 /* On success, returns 1 and sets ctx->status to BLOWFISH_OK (zero).
58 * On error, returns 0 and sets ctx->status to BLOWFISH_WEAK_KEY. */
60 blowfish_set_key(struct blowfish_ctx *ctx,
61 unsigned length, const uint8_t *key);
64 blowfish_encrypt(const struct blowfish_ctx *ctx,
65 unsigned length, uint8_t *dst,
68 blowfish_decrypt(const struct blowfish_ctx *ctx,
69 unsigned length, uint8_t *dst,
76 #endif /* NETTLE_BLOWFISH_H_INCLUDED */