| /* ---------------------------------------------------------------------------- | |
| * SAM Software Package License | |
| * ---------------------------------------------------------------------------- | |
| * Copyright (c) 2015, Atmel Corporation | |
| * | |
| * 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 disclaimer below. | |
| * | |
| * Atmel's name may not be used to endorse or promote products derived from | |
| * this software without specific prior written permission. | |
| * | |
| * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR | |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE | |
| * DISCLAIMED. IN NO EVENT SHALL ATMEL 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. | |
| * ---------------------------------------------------------------------------- | |
| */ | |
| #ifndef _SHA_ | |
| #define _SHA_ | |
| /*------------------------------------------------------------------------------ | |
| * Headers | |
| *----------------------------------------------------------------------------*/ | |
| #include "chip.h" | |
| /*----------------------------------------------------------------------------*/ | |
| /* Exported functions */ | |
| /*----------------------------------------------------------------------------*/ | |
| /** | |
| * \brief Starts Manual hash algorithm process. | |
| */ | |
| extern void sha_start(void); | |
| /** | |
| * \brief Resets the SHA. A software triggered hardware reset of the | |
| * SHA interface is performed. | |
| */ | |
| extern void sha_soft_reset(void); | |
| /** | |
| * \brief Indicates that the next block to process is the first one of | |
| * a message. | |
| */ | |
| extern void sha_first_block(void); | |
| /** | |
| * \brief Configures an SHA peripheral with the specified parameters. | |
| * \param mode Desired value for the SHA mode register (see the datasheet). | |
| */ | |
| extern void sha_configure(uint32_t mode); | |
| /** | |
| * \brief Enables the selected interrupts sources on a SHA peripheral. | |
| * \param sources Bitwise OR of selected interrupt sources. | |
| */ | |
| extern void sha_enable_it(uint32_t sources); | |
| /** | |
| * \brief Disables the selected interrupts sources on a SHA peripheral. | |
| * \param sources Bitwise OR of selected interrupt sources. | |
| */ | |
| extern void sha_disable_it(uint32_t sources); | |
| /** | |
| * \brief Get the current status register of the given SHA peripheral. | |
| * \return SHA status register. | |
| */ | |
| extern uint32_t sha_get_status(void); | |
| /** | |
| * \brief Set the 32-bit Input Data registers allow to load the data block used for hash processing. | |
| * \param data Pointer data block. | |
| * \param len 512/1024-bits block size | |
| */ | |
| extern void sha_set_input(uint32_t * data, uint8_t len); | |
| /** | |
| * \brief Getread the resulting message digest and to write the second part of the message block when the | |
| * SHA algorithm is SHA-384 or SHA-512. | |
| * \param data pointer to the word that has been encrypted/decrypted.. | |
| */ | |
| extern void sha_get_output(uint32_t * data); | |
| #endif /* #ifndef _SHA_ */ |