/****************************************************************************** * Filename: aes_doc.h * Revised: 2017-06-05 12:13:49 +0200 (Mon, 05 Jun 2017) * Revision: 49096 * * Copyright (c) 2015 - 2017, Texas Instruments Incorporated * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1) Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2) 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. * * 3) Neither the name of the ORGANIZATION 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 HOLDER 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. * ******************************************************************************/ //! \addtogroup aes_api //! @{ //! \section sec_aes Introduction //! //! The AES (advanced encryption standard) API provides access to the AES and key //! store functionality of the crypto core. The SHA2 accelerator is also //! contained within the crypto core. Hence, only one of SHA2 and AES may be //! used at the same time. //! This module offers hardware acceleration for several protocols using the //! AES block cypher. The protocols below are supported by the hardware. The //! driverlib documentation only explicitly references the most commonly used ones. //! - ECB //! - CBC //! - CCM //! - CBC-MAC //! - GCM //! //! The key store is a section of crypto memory that is only accessible to the crypto module //! and may be written to by the application via the crypto DMA. It is not possible to //! read from the key store to main memory. Thereby, it is not possible to //! compromise the key should the application be hacked if the original key in main //! memory was overwritten already. //! //! The crypto core does not have retention and all configuration settings and //! keys in the keystore are lost when going into standby or shutdown. //! The typical security advantages a key store offers are not available in these //! low power modes as the key must be saved in regular memory to reload //! it after going into standby or shutdown. //! Consequently, the keystore primarily serves as an interface to the AES accelerator. //! //! @}