xref: /third_party/openssl/include/openssl/rc5.h (revision e1051a39) 
1/*
2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 OPENSSL_RC5_H
11# define OPENSSL_RC5_H
12# pragma once
13
14# include <openssl/macros.h>
15# ifndef OPENSSL_NO_DEPRECATED_3_0
16#  define HEADER_RC5_H
17# endif
18
19# include <openssl/opensslconf.h>
20
21# ifndef OPENSSL_NO_RC5
22#  ifdef  __cplusplus
23extern "C" {
24#  endif
25
26#  define RC5_32_BLOCK            8
27#  define RC5_32_KEY_LENGTH       16/* This is a default, max is 255 */
28
29#  ifndef OPENSSL_NO_DEPRECATED_3_0
30#   define RC5_ENCRYPT     1
31#   define RC5_DECRYPT     0
32
33#   define RC5_32_INT unsigned int
34
35/*
36 * This are the only values supported.  Tweak the code if you want more The
37 * most supported modes will be RC5-32/12/16 RC5-32/16/8
38 */
39#   define RC5_8_ROUNDS    8
40#   define RC5_12_ROUNDS   12
41#   define RC5_16_ROUNDS   16
42
43typedef struct rc5_key_st {
44    /* Number of rounds */
45    int rounds;
46    RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)];
47} RC5_32_KEY;
48#  endif
49#  ifndef OPENSSL_NO_DEPRECATED_3_0
50OSSL_DEPRECATEDIN_3_0 int RC5_32_set_key(RC5_32_KEY *key, int len,
51                                         const unsigned char *data,
52                                         int rounds);
53OSSL_DEPRECATEDIN_3_0 void RC5_32_ecb_encrypt(const unsigned char *in,
54                                              unsigned char *out,
55                                              RC5_32_KEY *key,
56                                              int enc);
57OSSL_DEPRECATEDIN_3_0 void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key);
58OSSL_DEPRECATEDIN_3_0 void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key);
59OSSL_DEPRECATEDIN_3_0 void RC5_32_cbc_encrypt(const unsigned char *in,
60                                              unsigned char *out, long length,
61                                              RC5_32_KEY *ks, unsigned char *iv,
62                                              int enc);
63OSSL_DEPRECATEDIN_3_0 void RC5_32_cfb64_encrypt(const unsigned char *in,
64                                                unsigned char *out, long length,
65                                                RC5_32_KEY *schedule,
66                                                unsigned char *ivec, int *num,
67                                                int enc);
68OSSL_DEPRECATEDIN_3_0 void RC5_32_ofb64_encrypt(const unsigned char *in,
69                                                unsigned char *out, long length,
70                                                RC5_32_KEY *schedule,
71                                                unsigned char *ivec, int *num);
72#  endif
73
74#  ifdef  __cplusplus
75}
76#  endif
77# endif
78
79#endif
80