blowfish.h revision 55009 
1/* crypto/bf/blowfish.h */
2/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@mincom.oz.au).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@mincom.oz.au).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@mincom.oz.au)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 *
58 * $FreeBSD: head/sys/crypto/blowfish/blowfish.h 55009 1999-12-22 19:13:38Z shin $
59 */
60
61#ifndef HEADER_BLOWFISH_H
62#define	HEADER_BLOWFISH_H
63
64#ifdef  __cplusplus
65extern "C" {
66#endif
67
68#define	BF_ENCRYPT	1
69#define	BF_DECRYPT	0
70
71/* If you make this 'unsigned int' the pointer variants will work on
72 * the Alpha, otherwise they will not.  Strangly using the '8 byte'
73 * BF_LONG and the default 'non-pointer' inner loop is the best configuration
74 * for the Alpha */
75#define	BF_LONG unsigned long
76
77#define	BF_ROUNDS	16
78#define	BF_BLOCK	8
79
80typedef struct bf_key_st
81	{
82	BF_LONG P[BF_ROUNDS+2];
83	BF_LONG S[4*256];
84	} BF_KEY;
85
86#ifndef NOPROTO
87
88void BF_set_key(BF_KEY *key, int len, unsigned char *data);
89void BF_ecb_encrypt(unsigned char *in,unsigned char *out,BF_KEY *key,
90	int encrypt);
91void BF_encrypt(BF_LONG *data,BF_KEY *key,int encrypt);
92void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
93	BF_KEY *ks, unsigned char *iv, int encrypt);
94void BF_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
95	BF_KEY *schedule, unsigned char *ivec, int *num, int encrypt);
96void BF_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
97	BF_KEY *schedule, unsigned char *ivec, int *num);
98char *BF_options(void);
99
100/* added by itojun */
101struct mbuf;
102void BF_cbc_encrypt_m(struct mbuf *, int, int, BF_KEY *,
103		unsigned char *, int);
104
105#else
106
107void BF_set_key();
108void BF_ecb_encrypt();
109void BF_encrypt();
110void BF_cbc_encrypt();
111void BF_cfb64_encrypt();
112void BF_ofb64_encrypt();
113char *BF_options();
114
115/* added by itojun */
116void BF_cbc_encrypt_m();
117
118#endif
119
120#ifdef  __cplusplus
121}
122#endif
123
124#endif
125