/*

 * 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