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/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef HEADER_RC5_H
# define HEADER_RC5_H
# include <openssl/opensslconf.h>
# ifndef OPENSSL_NO_RC5
# ifdef __cplusplus
extern "C" {
# endif
# define RC5_ENCRYPT 1
# define RC5_DECRYPT 0
# define RC5_32_INT unsigned int
# define RC5_32_BLOCK 8
# define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */
/*
* This are the only values supported. Tweak the code if you want more The
* most supported modes will be RC5-32/12/16 RC5-32/16/8
*/
# define RC5_8_ROUNDS 8
# define RC5_12_ROUNDS 12
# define RC5_16_ROUNDS 16
typedef struct rc5_key_st {
/* Number of rounds */
int rounds;
RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)];
} RC5_32_KEY;
void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data,
int rounds);
void RC5_32_ecb_encrypt(const unsigned char *in, unsigned char *out,
RC5_32_KEY *key, int enc);
void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key);
void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key);
void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out,
long length, RC5_32_KEY *ks, unsigned char *iv,
int enc);
void RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out,
long length, RC5_32_KEY *schedule,
unsigned char *ivec, int *num, int enc);
void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out,
long length, RC5_32_KEY *schedule,
unsigned char *ivec, int *num);
# ifdef __cplusplus
}
# endif
# endif
#endif