1/* crypto/rc2/rc2.h */
2/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
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.
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@cryptsoft.com).
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@cryptsoft.com)"
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@cryptsoft.com)"
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
74extern "C" {
75#endif
76
77typedef struct rc2_key_st
78	{
79	RC2_INT data[64];
80	} RC2_KEY;
81
82
83void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data,int bits);
84void RC2_ecb_encrypt(const unsigned char *in,unsigned char *out,RC2_KEY *key,
85		     int enc);
86void RC2_encrypt(unsigned long *data,RC2_KEY *key);
87void RC2_decrypt(unsigned long *data,RC2_KEY *key);
88void RC2_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
89	RC2_KEY *ks, unsigned char *iv, int enc);
90void RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out,
91		       long length, RC2_KEY *schedule, unsigned char *ivec,
92		       int *num, int enc);
93void RC2_ofb64_encrypt(const unsigned char *in, unsigned char *out,
94		       long length, RC2_KEY *schedule, unsigned char *ivec,
95		       int *num);
96
97#ifdef  __cplusplus
98}
99#endif
100
101#endif
102