1/* $NetBSD: blowfish.h,v 1.8 2009/03/14 14:46:08 dsl Exp $ */
2/* $KAME: blowfish.h,v 1.10 2000/09/18 21:21:20 itojun Exp $ */
3
4/* crypto/bf/blowfish.h */
5/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
6 * All rights reserved.
7 *
8 * This package is an SSL implementation written
9 * by Eric Young (eay@mincom.oz.au).
10 * The implementation was written so as to conform with Netscapes SSL.
11 *
12 * This library is free for commercial and non-commercial use as long as
13 * the following conditions are aheared to. The following conditions
14 * apply to all code found in this distribution, be it the RC4, RSA,
15 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
16 * included with this distribution is covered by the same copyright terms
17 * except that the holder is Tim Hudson (tjh@mincom.oz.au).
18 *
19 * Copyright remains Eric Young's, and as such any Copyright notices in
20 * the code are not to be removed.
21 * If this package is used in a product, Eric Young should be given attribution
22 * as the author of the parts of the library used.
23 * This can be in the form of a textual message at program startup or
24 * in documentation (online or textual) provided with the package.
25 *
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
28 * are met:
29 * 1. Redistributions of source code must retain the copyright
30 * notice, this list of conditions and the following disclaimer.
31 * 2. Redistributions in binary form must reproduce the above copyright
32 * notice, this list of conditions and the following disclaimer in the
33 * documentation and/or other materials provided with the distribution.
34 * 3. All advertising materials mentioning features or use of this software
35 * must display the following acknowledgement:
36 * "This product includes cryptographic software written by
37 * Eric Young (eay@mincom.oz.au)"
38 * The word 'cryptographic' can be left out if the rouines from the library
39 * being used are not cryptographic related :-).
40 * 4. If you include any Windows specific code (or a derivative thereof) from
41 * the apps directory (application code) you must include an acknowledgement:
42 * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
43 *
44 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * SUCH DAMAGE.
55 *
56 * The licence and distribution terms for any publically available version or
57 * derivative of this code cannot be changed. i.e. this code cannot simply be
58 * copied and put under another distribution licence
59 * [including the GNU Public Licence.]
60 */
61
62#ifndef HEADER_BLOWFISH_H
63#define HEADER_BLOWFISH_H
64
65#ifdef __cplusplus
66extern "C" {
67#endif
68
69#define BF_ENCRYPT 1
70#define BF_DECRYPT 0
71
72/* must be 32bit quantity */
73#define BF_LONG u_int32_t
74
75#define BF_ROUNDS 16
76#define BF_BLOCK 8
77
78typedef struct bf_key_st {
79 BF_LONG P[BF_ROUNDS+2];
80 BF_LONG S[4*256];
81} BF_KEY;
82
83void BF_set_key(BF_KEY *, int, const unsigned char *);
84void BF_encrypt(BF_LONG *, const BF_KEY *);
85void BF_decrypt(BF_LONG *, const BF_KEY *);
86void BF_cbc_encrypt(const unsigned char *, unsigned char *, long,
87 const BF_KEY *, unsigned char *, int);
88void BF_ecb_encrypt(const unsigned char *, unsigned char *,
89 const BF_KEY *, int);
90
91#ifdef __cplusplus
92}
93#endif
94
95#endif
96