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rc2.h
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1 /* crypto/rc2/rc2.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_RC2_H
60 #define HEADER_RC2_H
61 
62 #include <openssl/opensslconf.h> /* OPENSSL_NO_RC2, RC2_INT */
63 #ifdef OPENSSL_NO_RC2
64 #error RC2 is disabled.
65 #endif
66 
67 #define RC2_ENCRYPT 1
68 #define RC2_DECRYPT 0
69 
70 #define RC2_BLOCK 8
71 #define RC2_KEY_LENGTH 16
72 
73 #ifdef __cplusplus
74 extern "C" {
75 #endif
76 
77 typedef struct rc2_key_st
78  {
79  RC2_INT data[64];
80  } RC2_KEY;
81 
82 #ifdef OPENSSL_FIPS
83 void private_RC2_set_key(RC2_KEY *key, int len, const unsigned char *data,int bits);
84 #endif
85 void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data,int bits);
86 void RC2_ecb_encrypt(const unsigned char *in,unsigned char *out,RC2_KEY *key,
87  int enc);
88 void RC2_encrypt(unsigned long *data,RC2_KEY *key);
89 void RC2_decrypt(unsigned long *data,RC2_KEY *key);
90 void RC2_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
91  RC2_KEY *ks, unsigned char *iv, int enc);
92 void RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out,
93  long length, RC2_KEY *schedule, unsigned char *ivec,
94  int *num, int enc);
95 void RC2_ofb64_encrypt(const unsigned char *in, unsigned char *out,
96  long length, RC2_KEY *schedule, unsigned char *ivec,
97  int *num);
98 
99 #ifdef __cplusplus
100 }
101 #endif
102 
103 #endif