diff --git a/include/mbedcrypto/aes.h b/include/mbedcrypto/aes.h
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+/**
+ * \file aes.h
+ *
+ * \brief   This file contains 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>.
+ */
+
+/*  Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved.
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  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 Crypto (https://tls.mbed.org)
+ */
+
+#ifndef MBEDCRYPTO_AES_H
+#define MBEDCRYPTO_AES_H
+
+#if !defined(MBEDCRYPTO_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDCRYPTO_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+/* padlock.c and aesni.c rely on these values! */
+#define MBEDCRYPTO_AES_ENCRYPT     1 /**< AES encryption. */
+#define MBEDCRYPTO_AES_DECRYPT     0 /**< AES decryption. */
+
+/* Error codes in range 0x0020-0x0022 */
+#define MBEDCRYPTO_ERR_AES_INVALID_KEY_LENGTH                -0x0020  /**< Invalid key length. */
+#define MBEDCRYPTO_ERR_AES_INVALID_INPUT_LENGTH              -0x0022  /**< Invalid data input length. */
+
+/* Error codes in range 0x0023-0x0025 */
+#define MBEDCRYPTO_ERR_AES_FEATURE_UNAVAILABLE               -0x0023  /**< Feature not available. For example, an unsupported AES key size. */
+#define MBEDCRYPTO_ERR_AES_HW_ACCEL_FAILED                   -0x0025  /**< AES hardware accelerator failed. */
+
+#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
+    !defined(inline) && !defined(__cplusplus)
+#define inline __inline
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !defined(MBEDCRYPTO_AES_ALT)
+// Regular implementation
+//
+
+/**
+ * \brief The AES context-type definition.
+ */
+typedef struct
+{
+    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> */
+}
+mbedcrypto_aes_context;
+
+#else  /* MBEDCRYPTO_AES_ALT */
+#include "aes_alt.h"
+#endif /* MBEDCRYPTO_AES_ALT */
+
+/**
+ * \brief          This function initializes the specified AES context.
+ *
+ *                 It must be the first API called before using
+ *                 the context.
+ *
+ * \param ctx      The AES context to initialize.
+ */
+void mbedcrypto_aes_init( mbedcrypto_aes_context *ctx );
+
+/**
+ * \brief          This function releases and clears the specified AES context.
+ *
+ * \param ctx      The AES context to clear.
+ */
+void mbedcrypto_aes_free( mbedcrypto_aes_context *ctx );
+
+/**
+ * \brief          This function sets the encryption key.
+ *
+ * \param ctx      The AES context to which the key should be bound.
+ * \param key      The encryption key.
+ * \param keybits  The size of data passed in bits. Valid options are:
+ *                 <ul><li>128 bits</li>
+ *                 <li>192 bits</li>
+ *                 <li>256 bits</li></ul>
+ *
+ * \return         \c 0 on success.
+ * \return         #MBEDCRYPTO_ERR_AES_INVALID_KEY_LENGTH on failure.
+ */
+int mbedcrypto_aes_setkey_enc( mbedcrypto_aes_context *ctx, const unsigned char *key,
+                    unsigned int keybits );
+
+/**
+ * \brief          This function sets the decryption key.
+ *
+ * \param ctx      The AES context to which the key should be bound.
+ * \param key      The decryption key.
+ * \param keybits  The size of data passed. Valid options are:
+ *                 <ul><li>128 bits</li>
+ *                 <li>192 bits</li>
+ *                 <li>256 bits</li></ul>
+ *
+ * \return         \c 0 on success.
+ * \return         #MBEDCRYPTO_ERR_AES_INVALID_KEY_LENGTH on failure.
+ */
+int mbedcrypto_aes_setkey_dec( mbedcrypto_aes_context *ctx, const unsigned char *key,
+                    unsigned int keybits );
+
+/**
+ * \brief          This function performs an AES single-block encryption or
+ *                 decryption operation.
+ *
+ *                 It performs the operation defined in the \p mode parameter
+ *                 (encrypt or decrypt), on the input data buffer defined in
+ *                 the \p input parameter.
+ *
+ *                 mbedcrypto_aes_init(), and either mbedcrypto_aes_setkey_enc() or
+ *                 mbedcrypto_aes_setkey_dec() must be called before the first
+ *                 call to this API with the same context.
+ *
+ * \param ctx      The AES context to use for encryption or decryption.
+ * \param mode     The AES operation: #MBEDCRYPTO_AES_ENCRYPT or
+ *                 #MBEDCRYPTO_AES_DECRYPT.
+ * \param input    The 16-Byte buffer holding the input data.
+ * \param output   The 16-Byte buffer holding the output data.
+
+ * \return         \c 0 on success.
+ */
+int mbedcrypto_aes_crypt_ecb( mbedcrypto_aes_context *ctx,
+                    int mode,
+                    const unsigned char input[16],
+                    unsigned char output[16] );
+
+#if defined(MBEDCRYPTO_CIPHER_MODE_CBC)
+/**
+ * \brief  This function performs an AES-CBC encryption or decryption operation
+ *         on full blocks.
+ *
+ *         It performs the operation defined in the \p mode
+ *         parameter (encrypt/decrypt), on the input data buffer defined in
+ *         the \p input parameter.
+ *
+ *         It can be called as many times as needed, until all the input
+ *         data is processed. mbedcrypto_aes_init(), and either
+ *         mbedcrypto_aes_setkey_enc() or mbedcrypto_aes_setkey_dec() must be called
+ *         before the first call to this API with the same context.
+ *
+ * \note   This function operates on aligned blocks, that is, the input size
+ *         must be a multiple of the AES block size of 16 Bytes.
+ *
+ * \note   Upon exit, the content of the IV is updated so that you can
+ *         call the same function again on the next
+ *         block(s) of data and get the same result as if it was
+ *         encrypted in one call. This allows a "streaming" usage.
+ *         If you need to retain the contents of the IV, you should
+ *         either save it manually or use the cipher module instead.
+ *
+ *
+ * \param ctx      The AES context to use for encryption or decryption.
+ * \param mode     The AES operation: #MBEDCRYPTO_AES_ENCRYPT or
+ *                 #MBEDCRYPTO_AES_DECRYPT.
+ * \param length   The length of the input data in Bytes. This must be a
+ *                 multiple of the block size (16 Bytes).
+ * \param iv       Initialization vector (updated after use).
+ * \param input    The buffer holding the input data.
+ * \param output   The buffer holding the output data.
+ *
+ * \return         \c 0 on success.
+ * \return         #MBEDCRYPTO_ERR_AES_INVALID_INPUT_LENGTH
+ *                 on failure.
+ */
+int mbedcrypto_aes_crypt_cbc( mbedcrypto_aes_context *ctx,
+                    int mode,
+                    size_t length,
+                    unsigned char iv[16],
+                    const unsigned char *input,
+                    unsigned char *output );
+#endif /* MBEDCRYPTO_CIPHER_MODE_CBC */
+
+#if defined(MBEDCRYPTO_CIPHER_MODE_CFB)
+/**
+ * \brief This function performs an AES-CFB128 encryption or decryption
+ *        operation.
+ *
+ *        It performs the operation defined in the \p mode
+ *        parameter (encrypt or decrypt), on the input data buffer
+ *        defined in the \p input parameter.
+ *
+ *        For CFB, you must set up the context with mbedcrypto_aes_setkey_enc(),
+ *        regardless of whether you are performing an encryption or decryption
+ *        operation, that is, regardless of the \p mode parameter. This is
+ *        because CFB mode uses the same key schedule for encryption and
+ *        decryption.
+ *
+ * \note  Upon exit, the content of the IV is updated so that you can
+ *        call the same function again on the next
+ *        block(s) of data and get the same result as if it was
+ *        encrypted in one call. This allows a "streaming" usage.
+ *        If you need to retain the contents of the
+ *        IV, you must either save it manually or use the cipher
+ *        module instead.
+ *
+ *
+ * \param ctx      The AES context to use for encryption or decryption.
+ * \param mode     The AES operation: #MBEDCRYPTO_AES_ENCRYPT or
+ *                 #MBEDCRYPTO_AES_DECRYPT.
+ * \param length   The length of the input data.
+ * \param iv_off   The offset in IV (updated after use).
+ * \param iv       The initialization vector (updated after use).
+ * \param input    The buffer holding the input data.
+ * \param output   The buffer holding the output data.
+ *
+ * \return         \c 0 on success.
+ */
+int mbedcrypto_aes_crypt_cfb128( mbedcrypto_aes_context *ctx,
+                       int mode,
+                       size_t length,
+                       size_t *iv_off,
+                       unsigned char iv[16],
+                       const unsigned char *input,
+                       unsigned char *output );
+
+/**
+ * \brief This function performs an AES-CFB8 encryption or decryption
+ *        operation.
+ *
+ *        It performs the operation defined in the \p mode
+ *        parameter (encrypt/decrypt), on the input data buffer defined
+ *        in the \p input parameter.
+ *
+ *        Due to the nature of CFB, you must use the same key schedule for
+ *        both encryption and decryption operations. Therefore, you must
+ *        use the context initialized with mbedcrypto_aes_setkey_enc() for
+ *        both #MBEDCRYPTO_AES_ENCRYPT and #MBEDCRYPTO_AES_DECRYPT.
+ *
+ * \note  Upon exit, the content of the IV is updated so that you can
+ *        call the same function again on the next
+ *        block(s) of data and get the same result as if it was
+ *        encrypted in one call. This allows a "streaming" usage.
+ *        If you need to retain the contents of the
+ *        IV, you should either save it manually or use the cipher
+ *        module instead.
+ *
+ *
+ * \param ctx      The AES context to use for encryption or decryption.
+ * \param mode     The AES operation: #MBEDCRYPTO_AES_ENCRYPT or
+ *                 #MBEDCRYPTO_AES_DECRYPT
+ * \param length   The length of the input data.
+ * \param iv       The initialization vector (updated after use).
+ * \param input    The buffer holding the input data.
+ * \param output   The buffer holding the output data.
+ *
+ * \return         \c 0 on success.
+ */
+int mbedcrypto_aes_crypt_cfb8( mbedcrypto_aes_context *ctx,
+                    int mode,
+                    size_t length,
+                    unsigned char iv[16],
+                    const unsigned char *input,
+                    unsigned char *output );
+#endif /*MBEDCRYPTO_CIPHER_MODE_CFB */
+
+#if defined(MBEDCRYPTO_CIPHER_MODE_CTR)
+/**
+ * \brief      This function performs an AES-CTR encryption or decryption
+ *             operation.
+ *
+ *             This function performs the operation defined in the \p mode
+ *             parameter (encrypt/decrypt), on the input data buffer
+ *             defined in the \p input parameter.
+ *
+ *             Due to the nature of CTR, you must use the same key schedule
+ *             for both encryption and decryption operations. Therefore, you
+ *             must use the context initialized with mbedcrypto_aes_setkey_enc()
+ *             for both #MBEDCRYPTO_AES_ENCRYPT and #MBEDCRYPTO_AES_DECRYPT.
+ *
+ * \warning    You must keep the maximum use of your counter in mind.
+ *
+ * \param ctx              The AES context to use for encryption or decryption.
+ * \param length           The length of the input data.
+ * \param nc_off           The offset in the current \p stream_block, for
+ *                         resuming within the current cipher stream. The
+ *                         offset pointer should be 0 at the start of a stream.
+ * \param nonce_counter    The 128-bit nonce and counter.
+ * \param stream_block     The saved stream block for resuming. This is
+ *                         overwritten by the function.
+ * \param input            The buffer holding the input data.
+ * \param output           The buffer holding the output data.
+ *
+ * \return                 \c 0 on success.
+ */
+int mbedcrypto_aes_crypt_ctr( mbedcrypto_aes_context *ctx,
+                       size_t length,
+                       size_t *nc_off,
+                       unsigned char nonce_counter[16],
+                       unsigned char stream_block[16],
+                       const unsigned char *input,
+                       unsigned char *output );
+#endif /* MBEDCRYPTO_CIPHER_MODE_CTR */
+
+/**
+ * \brief           Internal AES block encryption function. This is only
+ *                  exposed to allow overriding it using
+ *                  \c MBEDCRYPTO_AES_ENCRYPT_ALT.
+ *
+ * \param ctx       The AES context to use for encryption.
+ * \param input     The plaintext block.
+ * \param output    The output (ciphertext) block.
+ *
+ * \return          \c 0 on success.
+ */
+int mbedcrypto_internal_aes_encrypt( mbedcrypto_aes_context *ctx,
+                                  const unsigned char input[16],
+                                  unsigned char output[16] );
+
+/**
+ * \brief           Internal AES block decryption function. This is only
+ *                  exposed to allow overriding it using see
+ *                  \c MBEDCRYPTO_AES_DECRYPT_ALT.
+ *
+ * \param ctx       The AES context to use for decryption.
+ * \param input     The ciphertext block.
+ * \param output    The output (plaintext) block.
+ *
+ * \return          \c 0 on success.
+ */
+int mbedcrypto_internal_aes_decrypt( mbedcrypto_aes_context *ctx,
+                                  const unsigned char input[16],
+                                  unsigned char output[16] );
+
+#if !defined(MBEDCRYPTO_DEPRECATED_REMOVED)
+#if defined(MBEDCRYPTO_DEPRECATED_WARNING)
+#define MBEDCRYPTO_DEPRECATED      __attribute__((deprecated))
+#else
+#define MBEDCRYPTO_DEPRECATED
+#endif
+/**
+ * \brief           Deprecated internal AES block encryption function
+ *                  without return value.
+ *
+ * \deprecated      Superseded by mbedcrypto_aes_encrypt_ext() in 2.5.0.
+ *
+ * \param ctx       The AES context to use for encryption.
+ * \param input     Plaintext block.
+ * \param output    Output (ciphertext) block.
+ */
+MBEDCRYPTO_DEPRECATED void mbedcrypto_aes_encrypt( mbedcrypto_aes_context *ctx,
+                                             const unsigned char input[16],
+                                             unsigned char output[16] );
+
+/**
+ * \brief           Deprecated internal AES block decryption function
+ *                  without return value.
+ *
+ * \deprecated      Superseded by mbedcrypto_aes_decrypt_ext() in 2.5.0.
+ *
+ * \param ctx       The AES context to use for decryption.
+ * \param input     Ciphertext block.
+ * \param output    Output (plaintext) block.
+ */
+MBEDCRYPTO_DEPRECATED void mbedcrypto_aes_decrypt( mbedcrypto_aes_context *ctx,
+                                             const unsigned char input[16],
+                                             unsigned char output[16] );
+
+#undef MBEDCRYPTO_DEPRECATED
+#endif /* !MBEDCRYPTO_DEPRECATED_REMOVED */
+
+/**
+ * \brief          Checkup routine.
+ *
+ * \return         \c 0 on success.
+ * \return         \c 1 on failure.
+ */
+int mbedcrypto_aes_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* aes.h */