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1.1 root 1: /* crypto/bf/blowfish.h */
2: /* Copyright (C) 1995-1997 Eric Young ([email protected])
3: * All rights reserved.
4: *
5: * This package is an SSL implementation written
6: * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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:
59: #ifndef HEADER_BLOWFISH_H
60: #define HEADER_BLOWFISH_H
61:
62: #ifdef __cplusplus
63: extern "C" {
64: #endif
65:
66: #define BF_ENCRYPT 1
67: #define BF_DECRYPT 0
68:
69: /* If you make this 'unsigned int' the pointer variants will work on
70: * the Alpha, otherwise they will not. Strangly using the '8 byte'
71: * BF_LONG and the default 'non-pointer' inner loop is the best configuration
72: * for the Alpha */
73: #define BF_LONG unsigned long
74:
75: #define BF_ROUNDS 16
76: #define BF_BLOCK 8
77:
78: typedef struct bf_key_st
79: {
80: BF_LONG P[BF_ROUNDS+2];
81: BF_LONG S[4*256];
82: } BF_KEY;
83:
84: #ifndef NOPROTO
85:
86: void _cdecl BF_set_key(BF_KEY *key, int len, unsigned char *data);
87: void BF_ecb_encrypt(unsigned char *in,unsigned char *out,BF_KEY *key,
88: int enc);
89: void _cdecl BF_encrypt(BF_LONG *data,BF_KEY *key);
90: void _cdecl BF_decrypt(BF_LONG *data,BF_KEY *key);
91: void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
92: BF_KEY *ks, unsigned char *iv, int enc);
93: void BF_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
94: BF_KEY *schedule, unsigned char *ivec, int *num, int enc);
95: void BF_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
96: BF_KEY *schedule, unsigned char *ivec, int *num);
97: char *BF_options(void);
98:
99: #else
100:
101: void BF_set_key();
102: void BF_ecb_encrypt();
103: void _cdecl BF_encrypt();
104: void _cdecl BF_decrypt();
105: void BF_cbc_encrypt();
106: void BF_cfb64_encrypt();
107: void BF_ofb64_encrypt();
108: char *BF_options();
109:
110: #endif
111:
112: #ifdef __cplusplus
113: }
114: #endif
115:
116: #endif
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