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d02b48c6 | 1 | /* crypto/bf/blowfish.h */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
40720ce3 | 8 | * |
d02b48c6 RE |
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@cryptsoft.com). | |
40720ce3 | 15 | * |
d02b48c6 RE |
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. | |
40720ce3 | 22 | * |
d02b48c6 RE |
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@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
40720ce3 | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40720ce3 | 40 | * |
d02b48c6 RE |
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. | |
40720ce3 | 52 | * |
d02b48c6 RE |
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 | |
40720ce3 | 60 | # define HEADER_BLOWFISH_H |
d02b48c6 | 61 | |
40720ce3 | 62 | # include <openssl/e_os2.h> |
cf1b7d96 | 63 | |
d02b48c6 RE |
64 | #ifdef __cplusplus |
65 | extern "C" { | |
66 | #endif | |
67 | ||
40720ce3 MC |
68 | # ifdef OPENSSL_NO_BF |
69 | # error BF is disabled. | |
70 | # endif | |
f5d7a031 | 71 | |
40720ce3 MC |
72 | # define BF_ENCRYPT 1 |
73 | # define BF_DECRYPT 0 | |
d02b48c6 | 74 | |
b558c8d5 | 75 | /*- |
8cd8a7b7 UM |
76 | * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
77 | * ! BF_LONG has to be at least 32 bits wide. If it's wider, then ! | |
78 | * ! BF_LONG_LOG2 has to be defined along. ! | |
79 | * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
80 | */ | |
81 | ||
40720ce3 MC |
82 | # if defined(OPENSSL_SYS_WIN16) || defined(__LP32__) |
83 | # define BF_LONG unsigned long | |
84 | # elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__) | |
85 | # define BF_LONG unsigned long | |
86 | # define BF_LONG_LOG2 3 | |
8cd8a7b7 UM |
87 | /* |
88 | * _CRAY note. I could declare short, but I have no idea what impact | |
89 | * does it have on performance on none-T3E machines. I could declare | |
90 | * int, but at least on C90 sizeof(int) can be chosen at compile time. | |
91 | * So I've chosen long... | |
40720ce3 | 92 | * <appro@fy.chalmers.se> |
8cd8a7b7 | 93 | */ |
40720ce3 MC |
94 | # else |
95 | # define BF_LONG unsigned int | |
96 | # endif | |
d02b48c6 | 97 | |
40720ce3 MC |
98 | # define BF_ROUNDS 16 |
99 | # define BF_BLOCK 8 | |
d02b48c6 | 100 | |
40720ce3 MC |
101 | typedef struct bf_key_st { |
102 | BF_LONG P[BF_ROUNDS + 2]; | |
103 | BF_LONG S[4 * 256]; | |
104 | } BF_KEY; | |
d02b48c6 | 105 | |
40720ce3 | 106 | # ifdef OPENSSL_FIPS |
96a259e8 | 107 | void private_BF_set_key(BF_KEY *key, int len, const unsigned char *data); |
40720ce3 | 108 | # endif |
cf069401 RL |
109 | void BF_set_key(BF_KEY *key, int len, const unsigned char *data); |
110 | ||
40720ce3 MC |
111 | void BF_encrypt(BF_LONG *data, const BF_KEY *key); |
112 | void BF_decrypt(BF_LONG *data, const BF_KEY *key); | |
cf069401 RL |
113 | |
114 | void BF_ecb_encrypt(const unsigned char *in, unsigned char *out, | |
40720ce3 | 115 | const BF_KEY *key, int enc); |
cf069401 | 116 | void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, |
40720ce3 MC |
117 | const BF_KEY *schedule, unsigned char *ivec, int enc); |
118 | void BF_cfb64_encrypt(const unsigned char *in, unsigned char *out, | |
119 | long length, const BF_KEY *schedule, | |
120 | unsigned char *ivec, int *num, int enc); | |
121 | void BF_ofb64_encrypt(const unsigned char *in, unsigned char *out, | |
122 | long length, const BF_KEY *schedule, | |
123 | unsigned char *ivec, int *num); | |
e778802f | 124 | const char *BF_options(void); |
d02b48c6 | 125 | |
d02b48c6 RE |
126 | #ifdef __cplusplus |
127 | } | |
128 | #endif | |
129 | ||
130 | #endif |