/**
 * \file aes_alt.h
 *
 * \brief   This file contains alternate AES definitions and functions.
 *
 *          The Advanced Encryption Standard (AES) specifies a FIPS-approved
 *          cryptographic algorithm that can be used to protect electronic
 *          data.
 *
 *          The AES algorithm is a symmetric block cipher that can
 *          encrypt and decrypt information. For more information, see
 *          <em>FIPS Publication 197: Advanced Encryption Standard</em> and
 *          <em>ISO/IEC 18033-2:2006: Information technology -- Security
 *          techniques -- Encryption algorithms -- Part 2: Asymmetric
 *          ciphers</em>.
 *
 *          The AES-XTS block mode is standardized by NIST SP 800-38E
 *          <https://nvlpubs.nist.gov/nistpubs/legacy/sp/nistspecialpublication800-38e.pdf>
 *          and described in detail by IEEE P1619
 *          <https://ieeexplore.ieee.org/servlet/opac?punumber=4375278>.
 */

/*  Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved.
 *  SPDX-License-Identifier: Apache-2.0
 *  Copyright 2018 NXP. Not a Contribution
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may
 *  not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  This file is part of Mbed TLS (https://tls.mbed.org)
 */

/*
 * Fow HW integration change
 * Copyright (c) 2023 HPMicro
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *
 */

#ifndef AES_ALT_H
#define AES_ALT_H

#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

#include "hpm_common.h"
#include "hpm_romapi.h"
#include "hpm_sdp_drv.h"

#ifdef __cplusplus
extern "C" {
#endif
#if defined(MBEDTLS_AES_ALT)
/**
 * \brief The AES context-type definition.
 */
typedef struct mbedtls_aes_context {
    int nr;            /*!< The number of rounds. */
    uint32_t *rk;      /*!< AES round keys. */
    uint32_t buf[68];  /*!< Unaligned data buffer. This buffer can
                            hold 32 extra Bytes, which can be used for
                            one of the following purposes:
                            <ul><li>Alignment if VIA padlock is
                                    used.</li>
                            <li>Simplifying key expansion in the 256-bit
                                case by generating an extra round key.
                                </li></ul> */
} mbedtls_aes_context;
#endif /* defined(MBEDTLS_AES_ALT) */
#if defined(MBEDTLS_CIPHER_MODE_XTS)
/**
 * \brief The AES XTS context-type definition.
 */
typedef struct mbedtls_aes_xts_context {
    mbedtls_aes_context crypt; /*!< The AES context to use for AES block
                                        encryption or decryption. */
    mbedtls_aes_context tweak; /*!< The AES context used for tweak
                                        computation. */
} mbedtls_aes_xts_context;
#endif /* MBEDTLS_CIPHER_MODE_XTS */

#ifdef __cplusplus
}
#endif

#endif /* AES_ALT_H */