2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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
13 # include <openssl/opensslconf.h>
15 # ifndef OPENSSL_NO_RC5
20 # define RC5_ENCRYPT 1
21 # define RC5_DECRYPT 0
23 # define RC5_32_INT unsigned int
25 # define RC5_32_BLOCK 8
26 # define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */
29 * This are the only values supported. Tweak the code if you want more The
30 * most supported modes will be RC5-32/12/16 RC5-32/16/8
32 # define RC5_8_ROUNDS 8
33 # define RC5_12_ROUNDS 12
34 # define RC5_16_ROUNDS 16
36 typedef struct rc5_key_st {
37 /* Number of rounds */
39 RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)];
42 void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data,
44 void RC5_32_ecb_encrypt(const unsigned char *in, unsigned char *out,
45 RC5_32_KEY *key, int enc);
46 void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key);
47 void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key);
48 void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out,
49 long length, RC5_32_KEY *ks, unsigned char *iv,
51 void RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out,
52 long length, RC5_32_KEY *schedule,
53 unsigned char *ivec, int *num, int enc);
54 void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out,
55 long length, RC5_32_KEY *schedule,
56 unsigned char *ivec, int *num);