/*
 * Copyright 2002-2020 The OpenSSL Project Authors. 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
 */

/**
 * @file aes.h
 *
 * @note
 *    This file is taken from the OpenSSL project to reuse
 *    the functionality and modified in order to prevent conflicts with
 *    public symbols in another existing OpenSSL library:
 *    - renames the public functions to have ossl_ prefix
 *    - makes non-public functions static
 *    - modifies path to the header files
 *    - excludes OPENSSL_NO_DEPRECATED_3_0 macro checks
 *
 * @par
 *   BSD LICENSE
 * 
 *   Copyright(c) 2007-2023 Intel Corporation. All rights reserved.
 *   All rights reserved.
 * 
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 * 
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 *  version: QAT20.L.1.2.30-00078
 *
 */

#ifndef HEADER_AES_H
# define HEADER_AES_H

# include <stddef.h>
# ifdef  __cplusplus
extern "C" {
# endif

# define AES_ENCRYPT     1
# define AES_DECRYPT     0

/*
 * Because array size can't be a const in C, the following two are macros.
 * Both sizes are in bytes.
 */
# define AES_MAXNR 14
# define AES_BLOCK_SIZE 16

/* This should be a hidden type, but EVP requires that the size be known */
struct aes_key_st {
# ifdef AES_LONG
    unsigned long rd_key[4 * (AES_MAXNR + 1)];
# else
    unsigned int rd_key[4 * (AES_MAXNR + 1)];
# endif
    int rounds;
};
typedef struct aes_key_st AES_KEY;

const char *AES_options(void);

int ossl_AES_set_encrypt_key(const unsigned char *userKey, const int bits,
                        AES_KEY *key);
int ossl_AES_set_decrypt_key(const unsigned char *userKey, const int bits,
                        AES_KEY *key);

void ossl_AES_encrypt(const unsigned char *in, unsigned char *out,
                 const AES_KEY *key);
void ossl_AES_decrypt(const unsigned char *in, unsigned char *out,
                 const AES_KEY *key);

# ifdef  __cplusplus
}
# endif

#endif
