/*

 * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.

 * Copyright 2017 Ribose Inc. 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

 */

#ifndef OSSL_CRYPTO_SM4_H

# define OSSL_CRYPTO_SM4_H

# include <openssl/opensslconf.h>

# include <openssl/e_os2.h>

# ifdef OPENSSL_NO_SM4

#  error SM4 is disabled.

# endif

# define SM4_ENCRYPT     1

# define SM4_DECRYPT     0

# define SM4_BLOCK_SIZE    16

# define SM4_KEY_SCHEDULE  32

typedef struct SM4_KEY_st {

    uint32_t rk[SM4_KEY_SCHEDULE];

} SM4_KEY;

int SM4_set_key(const uint8_t *key, SM4_KEY *ks);

void SM4_encrypt(const uint8_t *in, uint8_t *out, const SM4_KEY *ks);

void SM4_decrypt(const uint8_t *in, uint8_t *out, const SM4_KEY *ks);

#endif