1 /*
2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the OpenSSL license (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9 
10 #ifndef HEADER_RC2_H
11 # define HEADER_RC2_H
12 
13 # include <openssl/opensslconf.h>
14 
15 # ifndef OPENSSL_NO_RC2
16 # ifdef  __cplusplus
17 extern "C" {
18 # endif
19 
20 typedef unsigned int RC2_INT;
21 
22 # define RC2_ENCRYPT     1
23 # define RC2_DECRYPT     0
24 
25 # define RC2_BLOCK       8
26 # define RC2_KEY_LENGTH  16
27 
28 typedef struct rc2_key_st {
29     RC2_INT data[64];
30 } RC2_KEY;
31 
32 void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data, int bits);
33 void RC2_ecb_encrypt(const unsigned char *in, unsigned char *out,
34                      RC2_KEY *key, int enc);
35 void RC2_encrypt(unsigned long *data, RC2_KEY *key);
36 void RC2_decrypt(unsigned long *data, RC2_KEY *key);
37 void RC2_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
38                      RC2_KEY *ks, unsigned char *iv, int enc);
39 void RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out,
40                        long length, RC2_KEY *schedule, unsigned char *ivec,
41                        int *num, int enc);
42 void RC2_ofb64_encrypt(const unsigned char *in, unsigned char *out,
43                        long length, RC2_KEY *schedule, unsigned char *ivec,
44                        int *num);
45 
46 # ifdef  __cplusplus
47 }
48 # endif
49 # endif
50 
51 #endif
52