/*

 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.

 * Copyright (c) 2017, Oracle and/or its affiliates.  All rights reserved.

 *

 * Licensed under the Apache License 2.0 (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

 */

 /* Copyright (c) 2017 National Security Research Institute.  All rights reserved. */

#ifndef OSSL_CRYPTO_ARIA_H

# define OSSL_CRYPTO_ARIA_H

# include <openssl/opensslconf.h>

# ifdef OPENSSL_NO_ARIA

#  error ARIA is disabled.

# endif

# define ARIA_ENCRYPT     1

# define ARIA_DECRYPT     0

# define ARIA_BLOCK_SIZE    16  /* Size of each encryption/decryption block */

# define ARIA_MAX_KEYS      17  /* Number of keys needed in the worst case  */

typedef union {

    unsigned char c[ARIA_BLOCK_SIZE];

    unsigned int u[ARIA_BLOCK_SIZE / sizeof(unsigned int)];

} ARIA_u128;

typedef unsigned char ARIA_c128[ARIA_BLOCK_SIZE];

struct aria_key_st {

    ARIA_u128 rd_key[ARIA_MAX_KEYS];

    unsigned int rounds;

};

typedef struct aria_key_st ARIA_KEY;

int aria_set_encrypt_key(const unsigned char *userKey, const int bits,

                         ARIA_KEY *key);

int aria_set_decrypt_key(const unsigned char *userKey, const int bits,

                         ARIA_KEY *key);

void aria_encrypt(const unsigned char *in, unsigned char *out,

                  const ARIA_KEY *key);

#endif