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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c | 1638 |
1 files changed, 0 insertions, 1638 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c b/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c deleted file mode 100644 index 2b4faf37d6..0000000000 --- a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c +++ /dev/null @@ -1,1638 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f4xx_hal_hash_ex.c - * @author MCD Application Team - * @version V1.4.0 - * @date 14-August-2015 - * @brief HASH HAL Extension module driver. - * This file provides firmware functions to manage the following - * functionalities of HASH peripheral: - * + Extended HASH processing functions based on SHA224 Algorithm - * + Extended HASH processing functions based on SHA256 Algorithm - * - @verbatim - ============================================================================== - ##### How to use this driver ##### - ============================================================================== - [..] - The HASH HAL driver can be used as follows: - (#)Initialize the HASH low level resources by implementing the HAL_HASH_MspInit(): - (##) Enable the HASH interface clock using __HAL_RCC_HASH_CLK_ENABLE() - (##) In case of using processing APIs based on interrupts (e.g. HAL_HMACEx_SHA224_Start()) - (+++) Configure the HASH interrupt priority using HAL_NVIC_SetPriority() - (+++) Enable the HASH IRQ handler using HAL_NVIC_EnableIRQ() - (+++) In HASH IRQ handler, call HAL_HASH_IRQHandler() - (##) In case of using DMA to control data transfer (e.g. HAL_HMACEx_SH224_Start_DMA()) - (+++) Enable the DMAx interface clock using __DMAx_CLK_ENABLE() - (+++) Configure and enable one DMA stream one for managing data transfer from - memory to peripheral (input stream). Managing data transfer from - peripheral to memory can be performed only using CPU - (+++) Associate the initialized DMA handle to the HASH DMA handle - using __HAL_LINKDMA() - (+++) Configure the priority and enable the NVIC for the transfer complete - interrupt on the DMA Stream: HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ() - (#)Initialize the HASH HAL using HAL_HASH_Init(). This function configures mainly: - (##) The data type: 1-bit, 8-bit, 16-bit and 32-bit. - (##) For HMAC, the encryption key. - (##) For HMAC, the key size used for encryption. - (#)Three processing functions are available: - (##) Polling mode: processing APIs are blocking functions - i.e. they process the data and wait till the digest computation is finished - e.g. HAL_HASHEx_SHA224_Start() - (##) Interrupt mode: encryption and decryption APIs are not blocking functions - i.e. they process the data under interrupt - e.g. HAL_HASHEx_SHA224_Start_IT() - (##) DMA mode: processing APIs are not blocking functions and the CPU is - not used for data transfer i.e. the data transfer is ensured by DMA - e.g. HAL_HASHEx_SHA224_Start_DMA() - (#)When the processing function is called at first time after HAL_HASH_Init() - the HASH peripheral is initialized and processes the buffer in input. - After that, the digest computation is started. - When processing multi-buffer use the accumulate function to write the - data in the peripheral without starting the digest computation. In last - buffer use the start function to input the last buffer ans start the digest - computation. - (##) e.g. HAL_HASHEx_SHA224_Accumulate() : write 1st data buffer in the peripheral without starting the digest computation - (##) write (n-1)th data buffer in the peripheral without starting the digest computation - (##) HAL_HASHEx_SHA224_Start() : write (n)th data buffer in the peripheral and start the digest computation - (#)In HMAC mode, there is no Accumulate API. Only Start API is available. - (#)In case of using DMA, call the DMA start processing e.g. HAL_HASHEx_SHA224_Start_DMA(). - After that, call the finish function in order to get the digest value - e.g. HAL_HASHEx_SHA224_Finish() - (#)Call HAL_HASH_DeInit() to deinitialize the HASH peripheral. - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> - * - * 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 STMicroelectronics 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. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f4xx_hal.h" - -/** @addtogroup STM32F4xx_HAL_Driver - * @{ - */ - -/** @defgroup HASHEx HASHEx - * @brief HASH Extension HAL module driver. - * @{ - */ - -#ifdef HAL_HASH_MODULE_ENABLED - -#if defined(STM32F437xx) || defined(STM32F439xx) || defined(STM32F479xx) - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/** @addtogroup HASHEx_Private_Functions - * @{ - */ -static void HASHEx_DMAXferCplt(DMA_HandleTypeDef *hdma); -static void HASHEx_WriteData(uint8_t *pInBuffer, uint32_t Size); -static void HASHEx_GetDigest(uint8_t *pMsgDigest, uint8_t Size); -static void HASHEx_DMAError(DMA_HandleTypeDef *hdma); -/** - * @} - */ - -/* Private functions ---------------------------------------------------------*/ - -/** @addtogroup HASHEx_Private_Functions - * @{ - */ - -/** - * @brief Writes the input buffer in data register. - * @param pInBuffer: Pointer to input buffer - * @param Size: The size of input buffer - * @retval None - */ -static void HASHEx_WriteData(uint8_t *pInBuffer, uint32_t Size) -{ - uint32_t buffercounter; - uint32_t inputaddr = (uint32_t) pInBuffer; - - for(buffercounter = 0; buffercounter < Size; buffercounter+=4) - { - HASH->DIN = *(uint32_t*)inputaddr; - inputaddr+=4; - } -} - -/** - * @brief Provides the message digest result. - * @param pMsgDigest: Pointer to the message digest - * @param Size: The size of the message digest in bytes - * @retval None - */ -static void HASHEx_GetDigest(uint8_t *pMsgDigest, uint8_t Size) -{ - uint32_t msgdigest = (uint32_t)pMsgDigest; - - switch(Size) - { - case 16: - /* Read the message digest */ - *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]); - break; - case 20: - /* Read the message digest */ - *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]); - break; - case 28: - /* Read the message digest */ - *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6]); - break; - case 32: - /* Read the message digest */ - *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6]); - msgdigest+=4; - *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[7]); - break; - default: - break; - } -} - -/** - * @brief DMA HASH Input Data complete callback. - * @param hdma: DMA handle - * @retval None - */ -static void HASHEx_DMAXferCplt(DMA_HandleTypeDef *hdma) -{ - HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - uint32_t inputaddr = 0; - uint32_t buffersize = 0; - - if((HASH->CR & HASH_CR_MODE) != HASH_CR_MODE) - { - /* Disable the DMA transfer */ - HASH->CR &= (uint32_t)(~HASH_CR_DMAE); - - /* Change HASH peripheral state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Call Input data transfer complete callback */ - HAL_HASH_InCpltCallback(hhash); - } - else - { - /* Increment Interrupt counter */ - hhash->HashInCount++; - /* Disable the DMA transfer before starting the next transfer */ - HASH->CR &= (uint32_t)(~HASH_CR_DMAE); - - if(hhash->HashInCount <= 2) - { - /* In case HashInCount = 1, set the DMA to transfer data to HASH DIN register */ - if(hhash->HashInCount == 1) - { - inputaddr = (uint32_t)hhash->pHashInBuffPtr; - buffersize = hhash->HashBuffSize; - } - /* In case HashInCount = 2, set the DMA to transfer key to HASH DIN register */ - else if(hhash->HashInCount == 2) - { - inputaddr = (uint32_t)hhash->Init.pKey; - buffersize = hhash->Init.KeySize; - } - /* Configure the number of valid bits in last word of the message */ - MODIFY_REG(HASH->STR, HASH_STR_NBLW, 8 * (buffersize % 4)); - - /* Set the HASH DMA transfer complete */ - hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt; - - /* Enable the DMA In DMA Stream */ - HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (buffersize%4 ? (buffersize+3)/4:buffersize/4)); - - /* Enable DMA requests */ - HASH->CR |= (HASH_CR_DMAE); - } - else - { - /* Disable the DMA transfer */ - HASH->CR &= (uint32_t)(~HASH_CR_DMAE); - - /* Reset the InCount */ - hhash->HashInCount = 0; - - /* Change HASH peripheral state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Call Input data transfer complete callback */ - HAL_HASH_InCpltCallback(hhash); - } - } -} - -/** - * @brief DMA HASH communication error callback. - * @param hdma: DMA handle - * @retval None - */ -static void HASHEx_DMAError(DMA_HandleTypeDef *hdma) -{ - HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - hhash->State= HAL_HASH_STATE_READY; - HAL_HASH_ErrorCallback(hhash); -} - - /** - * @} - */ - -/* Exported functions --------------------------------------------------------*/ -/** @addtogroup HASHEx_Exported_Functions - * @{ - */ - -/** @defgroup HASHEx_Group1 HASH processing functions - * @brief processing functions using polling mode - * -@verbatim - =============================================================================== - ##### HASH processing using polling mode functions ##### - =============================================================================== - [..] This section provides functions allowing to calculate in polling mode - the hash value using one of the following algorithms: - (+) SHA224 - (+) SHA256 - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the HASH peripheral in SHA224 mode - * then processes pInBuffer. The digest is available in pOutBuffer - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @param pOutBuffer: Pointer to the computed digest. Its size must be 28 bytes. - * @param Timeout: Specify Timeout value - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA224_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout) -{ - uint32_t tickstart = 0; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA224 mode and reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_ALGOSELECTION_SHA224 | HASH_CR_INIT; - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Write input buffer in data register */ - HASHEx_WriteData(pInBuffer, Size); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - - /* Read the message digest */ - HASHEx_GetDigest(pOutBuffer, 28); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Initializes the HASH peripheral in SHA256 mode then processes pInBuffer. - The digest is available in pOutBuffer. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @param pOutBuffer: Pointer to the computed digest. Its size must be 32 bytes. - * @param Timeout: Specify Timeout value - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA256_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout) -{ - uint32_t tickstart = 0; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA256 mode and reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_ALGOSELECTION_SHA256 | HASH_CR_INIT; - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Write input buffer in data register */ - HASHEx_WriteData(pInBuffer, Size); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - - /* Read the message digest */ - HASHEx_GetDigest(pOutBuffer, 32); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - - -/** - * @brief Initializes the HASH peripheral in SHA224 mode - * then processes pInBuffer. The digest is available in pOutBuffer - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA224_Accumulate(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size) -{ - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA224 mode and reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_ALGOSELECTION_SHA224 | HASH_CR_INIT; - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Write input buffer in data register */ - HASHEx_WriteData(pInBuffer, Size); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - - -/** - * @brief Initializes the HASH peripheral in SHA256 mode then processes pInBuffer. - The digest is available in pOutBuffer. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA256_Accumulate(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size) -{ - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA256 mode and reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_ALGOSELECTION_SHA256 | HASH_CR_INIT; - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Write input buffer in data register */ - HASHEx_WriteData(pInBuffer, Size); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - - -/** - * @} - */ - -/** @defgroup HASHEx_Group2 HMAC processing functions using polling mode - * @brief HMAC processing functions using polling mode . - * -@verbatim - =============================================================================== - ##### HMAC processing using polling mode functions ##### - =============================================================================== - [..] This section provides functions allowing to calculate in polling mode - the HMAC value using one of the following algorithms: - (+) SHA224 - (+) SHA256 - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the HASH peripheral in HMAC SHA224 mode - * then processes pInBuffer. The digest is available in pOutBuffer. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes. - * @param Timeout: Timeout value - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HMACEx_SHA224_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout) -{ - uint32_t tickstart = 0; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Check if key size is greater than 64 bytes */ - if(hhash->Init.KeySize > 64) - { - /* Select the HMAC SHA224 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA224 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY | HASH_CR_INIT); - } - else - { - /* Select the HMAC SHA224 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA224 | HASH_ALGOMODE_HMAC | HASH_CR_INIT); - } - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /************************** STEP 1 ******************************************/ - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize); - - /* Write input buffer in data register */ - HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - /************************** STEP 2 ******************************************/ - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Write input buffer in data register */ - HASHEx_WriteData(pInBuffer, Size); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((HAL_GetTick() - tickstart ) > Timeout) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - /************************** STEP 3 ******************************************/ - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize); - - /* Write input buffer in data register */ - HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((HAL_GetTick() - tickstart ) > Timeout) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - /* Read the message digest */ - HASHEx_GetDigest(pOutBuffer, 28); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Initializes the HASH peripheral in HMAC SHA256 mode - * then processes pInBuffer. The digest is available in pOutBuffer - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes. - * @param Timeout: Timeout value - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HMACEx_SHA256_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout) -{ - uint32_t tickstart = 0; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Check if key size is greater than 64 bytes */ - if(hhash->Init.KeySize > 64) - { - /* Select the HMAC SHA256 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA256 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY); - } - else - { - /* Select the HMAC SHA256 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA256 | HASH_ALGOMODE_HMAC); - } - /* Reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_CR_INIT; - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /************************** STEP 1 ******************************************/ - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize); - - /* Write input buffer in data register */ - HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - /************************** STEP 2 ******************************************/ - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Write input buffer in data register */ - HASHEx_WriteData(pInBuffer, Size); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((HAL_GetTick() - tickstart ) > Timeout) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - /************************** STEP 3 ******************************************/ - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize); - - /* Write input buffer in data register */ - HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize); - - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - - /* Get tick */ - tickstart = HAL_GetTick(); - - while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((HAL_GetTick() - tickstart ) > Timeout) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - /* Read the message digest */ - HASHEx_GetDigest(pOutBuffer, 32); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @} - */ - -/** @defgroup HASHEx_Group3 HASH processing functions using interrupt mode - * @brief processing functions using interrupt mode. - * -@verbatim - =============================================================================== - ##### HASH processing using interrupt functions ##### - =============================================================================== - [..] This section provides functions allowing to calculate in interrupt mode - the hash value using one of the following algorithms: - (+) SHA224 - (+) SHA256 - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the HASH peripheral in SHA224 mode then processes pInBuffer. - * The digest is available in pOutBuffer. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA224_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer) -{ - uint32_t inputaddr; - uint32_t buffercounter; - uint32_t inputcounter; - - /* Process Locked */ - __HAL_LOCK(hhash); - - if(hhash->State == HAL_HASH_STATE_READY) - { - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - hhash->HashInCount = Size; - hhash->pHashInBuffPtr = pInBuffer; - hhash->pHashOutBuffPtr = pOutBuffer; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA224 mode */ - HASH->CR |= HASH_ALGOSELECTION_SHA224; - /* Reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_CR_INIT; - } - /* Reset interrupt counter */ - hhash->HashITCounter = 0; - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Enable Interrupts */ - HASH->IMR = (HASH_IT_DINI | HASH_IT_DCI); - - /* Return function status */ - return HAL_OK; - } - if(__HAL_HASH_GET_FLAG(HASH_FLAG_DCIS)) - { - /* Read the message digest */ - HASHEx_GetDigest(hhash->pHashOutBuffPtr, 28); - if(hhash->HashInCount == 0) - { - /* Disable Interrupts */ - HASH->IMR = 0; - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - /* Call digest computation complete callback */ - HAL_HASH_DgstCpltCallback(hhash); - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; - } - } - if(__HAL_HASH_GET_FLAG(HASH_FLAG_DINIS)) - { - if(hhash->HashInCount >= 68) - { - inputaddr = (uint32_t)hhash->pHashInBuffPtr; - /* Write the Input block in the Data IN register */ - for(buffercounter = 0; buffercounter < 64; buffercounter+=4) - { - HASH->DIN = *(uint32_t*)inputaddr; - inputaddr+=4; - } - if(hhash->HashITCounter == 0) - { - HASH->DIN = *(uint32_t*)inputaddr; - - if(hhash->HashInCount >= 68) - { - /* Decrement buffer counter */ - hhash->HashInCount -= 68; - hhash->pHashInBuffPtr+= 68; - } - else - { - hhash->HashInCount = 0; - hhash->pHashInBuffPtr+= hhash->HashInCount; - } - /* Set Interrupt counter */ - hhash->HashITCounter = 1; - } - else - { - /* Decrement buffer counter */ - hhash->HashInCount -= 64; - hhash->pHashInBuffPtr+= 64; - } - } - else - { - /* Get the buffer address */ - inputaddr = (uint32_t)hhash->pHashInBuffPtr; - /* Get the buffer counter */ - inputcounter = hhash->HashInCount; - /* Disable Interrupts */ - HASH->IMR &= ~(HASH_IT_DINI); - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(inputcounter); - - if((inputcounter > 4) && (inputcounter%4)) - { - inputcounter = (inputcounter+4-inputcounter%4); - } - else if ((inputcounter < 4) && (inputcounter != 0)) - { - inputcounter = 4; - } - /* Write the Input block in the Data IN register */ - for(buffercounter = 0; buffercounter < inputcounter/4; buffercounter++) - { - HASH->DIN = *(uint32_t*)inputaddr; - inputaddr+=4; - } - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - /* Reset buffer counter */ - hhash->HashInCount = 0; - /* Call Input data transfer complete callback */ - HAL_HASH_InCpltCallback(hhash); - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - - -/** - * @brief Initializes the HASH peripheral in SHA256 mode then processes pInBuffer. - * The digest is available in pOutBuffer. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA256_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer) -{ - uint32_t inputaddr; - uint32_t buffercounter; - uint32_t inputcounter; - - /* Process Locked */ - __HAL_LOCK(hhash); - - if(hhash->State == HAL_HASH_STATE_READY) - { - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - hhash->HashInCount = Size; - hhash->pHashInBuffPtr = pInBuffer; - hhash->pHashOutBuffPtr = pOutBuffer; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA256 mode */ - HASH->CR |= HASH_ALGOSELECTION_SHA256; - /* Reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_CR_INIT; - } - /* Reset interrupt counter */ - hhash->HashITCounter = 0; - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Enable Interrupts */ - HASH->IMR = (HASH_IT_DINI | HASH_IT_DCI); - - /* Return function status */ - return HAL_OK; - } - if(__HAL_HASH_GET_FLAG(HASH_FLAG_DCIS)) - { - /* Read the message digest */ - HASHEx_GetDigest(hhash->pHashOutBuffPtr, 32); - if(hhash->HashInCount == 0) - { - /* Disable Interrupts */ - HASH->IMR = 0; - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_READY; - /* Call digest computation complete callback */ - HAL_HASH_DgstCpltCallback(hhash); - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; - } - } - if(__HAL_HASH_GET_FLAG(HASH_FLAG_DINIS)) - { - if(hhash->HashInCount >= 68) - { - inputaddr = (uint32_t)hhash->pHashInBuffPtr; - /* Write the Input block in the Data IN register */ - for(buffercounter = 0; buffercounter < 64; buffercounter+=4) - { - HASH->DIN = *(uint32_t*)inputaddr; - inputaddr+=4; - } - if(hhash->HashITCounter == 0) - { - HASH->DIN = *(uint32_t*)inputaddr; - - if(hhash->HashInCount >= 68) - { - /* Decrement buffer counter */ - hhash->HashInCount -= 68; - hhash->pHashInBuffPtr+= 68; - } - else - { - hhash->HashInCount = 0; - hhash->pHashInBuffPtr+= hhash->HashInCount; - } - /* Set Interrupt counter */ - hhash->HashITCounter = 1; - } - else - { - /* Decrement buffer counter */ - hhash->HashInCount -= 64; - hhash->pHashInBuffPtr+= 64; - } - } - else - { - /* Get the buffer address */ - inputaddr = (uint32_t)hhash->pHashInBuffPtr; - /* Get the buffer counter */ - inputcounter = hhash->HashInCount; - /* Disable Interrupts */ - HASH->IMR &= ~(HASH_IT_DINI); - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(inputcounter); - - if((inputcounter > 4) && (inputcounter%4)) - { - inputcounter = (inputcounter+4-inputcounter%4); - } - else if ((inputcounter < 4) && (inputcounter != 0)) - { - inputcounter = 4; - } - /* Write the Input block in the Data IN register */ - for(buffercounter = 0; buffercounter < inputcounter/4; buffercounter++) - { - HASH->DIN = *(uint32_t*)inputaddr; - inputaddr+=4; - } - /* Start the digest calculation */ - __HAL_HASH_START_DIGEST(); - /* Reset buffer counter */ - hhash->HashInCount = 0; - /* Call Input data transfer complete callback */ - HAL_HASH_InCpltCallback(hhash); - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief This function handles HASH interrupt request. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @retval None - */ -void HAL_HASHEx_IRQHandler(HASH_HandleTypeDef *hhash) -{ - switch(HASH->CR & HASH_CR_ALGO) - { - - case HASH_ALGOSELECTION_SHA224: - HAL_HASHEx_SHA224_Start_IT(hhash, NULL, 0, NULL); - break; - - case HASH_ALGOSELECTION_SHA256: - HAL_HASHEx_SHA256_Start_IT(hhash, NULL, 0, NULL); - break; - - default: - break; - } -} - -/** - * @} - */ - -/** @defgroup HASHEx_Group4 HASH processing functions using DMA mode - * @brief processing functions using DMA mode. - * -@verbatim - =============================================================================== - ##### HASH processing using DMA functions ##### - =============================================================================== - [..] This section provides functions allowing to calculate in DMA mode - the hash value using one of the following algorithms: - (+) SHA224 - (+) SHA256 - -@endverbatim - * @{ - */ - - -/** - * @brief Initializes the HASH peripheral in SHA224 mode then enables DMA to - control data transfer. Use HAL_HASH_SHA224_Finish() to get the digest. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA224_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size) -{ - uint32_t inputaddr = (uint32_t)pInBuffer; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA224 mode and reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_ALGOSELECTION_SHA224 | HASH_CR_INIT; - } - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Set the HASH DMA transfer complete callback */ - hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt; - /* Set the DMA error callback */ - hhash->hdmain->XferErrorCallback = HASHEx_DMAError; - - /* Enable the DMA In DMA Stream */ - HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4 ? (Size+3)/4:Size/4)); - - /* Enable DMA requests */ - HASH->CR |= (HASH_CR_DMAE); - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Returns the computed digest in SHA224 - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pOutBuffer: Pointer to the computed digest. Its size must be 28 bytes. - * @param Timeout: Timeout value - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA224_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout) -{ - uint32_t tickstart = 0; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change HASH peripheral state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Get tick */ - tickstart = HAL_GetTick(); - - while(HAL_IS_BIT_CLR(HASH->SR, HASH_FLAG_DCIS)) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - - /* Read the message digest */ - HASHEx_GetDigest(pOutBuffer, 28); - - /* Change HASH peripheral state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Initializes the HASH peripheral in SHA256 mode then enables DMA to - control data transfer. Use HAL_HASH_SHA256_Finish() to get the digest. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA256_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size) -{ - uint32_t inputaddr = (uint32_t)pInBuffer; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Select the SHA256 mode and reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_ALGOSELECTION_SHA256 | HASH_CR_INIT; - } - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(Size); - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Set the HASH DMA transfer complete callback */ - hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt; - /* Set the DMA error callback */ - hhash->hdmain->XferErrorCallback = HASHEx_DMAError; - - /* Enable the DMA In DMA Stream */ - HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4 ? (Size+3)/4:Size/4)); - - /* Enable DMA requests */ - HASH->CR |= (HASH_CR_DMAE); - - /* Process UnLock */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Returns the computed digest in SHA256. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pOutBuffer: Pointer to the computed digest. Its size must be 32 bytes. - * @param Timeout: Timeout value - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HASHEx_SHA256_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout) -{ - uint32_t tickstart = 0; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change HASH peripheral state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Get tick */ - tickstart = HAL_GetTick(); - - while(HAL_IS_BIT_CLR(HASH->SR, HASH_FLAG_DCIS)) - { - /* Check for the Timeout */ - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) - { - /* Change state */ - hhash->State = HAL_HASH_STATE_TIMEOUT; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - return HAL_TIMEOUT; - } - } - } - - /* Read the message digest */ - HASHEx_GetDigest(pOutBuffer, 32); - - /* Change HASH peripheral state */ - hhash->State = HAL_HASH_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - - -/** - * @} - */ -/** @defgroup HASHEx_Group5 HMAC processing functions using DMA mode - * @brief HMAC processing functions using DMA mode . - * -@verbatim - =============================================================================== - ##### HMAC processing using DMA functions ##### - =============================================================================== - [..] This section provides functions allowing to calculate in DMA mode - the HMAC value using one of the following algorithms: - (+) SHA224 - (+) SHA256 - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the HASH peripheral in HMAC SHA224 mode - * then enables DMA to control data transfer. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HMACEx_SHA224_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size) -{ - uint32_t inputaddr; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Save buffer pointer and size in handle */ - hhash->pHashInBuffPtr = pInBuffer; - hhash->HashBuffSize = Size; - hhash->HashInCount = 0; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Check if key size is greater than 64 bytes */ - if(hhash->Init.KeySize > 64) - { - /* Select the HMAC SHA224 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA224 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY | HASH_CR_INIT); - } - else - { - /* Select the HMAC SHA224 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA224 | HASH_ALGOMODE_HMAC | HASH_CR_INIT); - } - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize); - - /* Get the key address */ - inputaddr = (uint32_t)(hhash->Init.pKey); - - /* Set the HASH DMA transfer complete callback */ - hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt; - /* Set the DMA error callback */ - hhash->hdmain->XferErrorCallback = HASHEx_DMAError; - - /* Enable the DMA In DMA Stream */ - HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4 ? (hhash->Init.KeySize+3)/4:hhash->Init.KeySize/4)); - /* Enable DMA requests */ - HASH->CR |= (HASH_CR_DMAE); - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Initializes the HASH peripheral in HMAC SHA256 mode - * then enables DMA to control data transfer. - * @param hhash: pointer to a HASH_HandleTypeDef structure that contains - * the configuration information for HASH module - * @param pInBuffer: Pointer to the input buffer (buffer to be hashed). - * @param Size: Length of the input buffer in bytes. - * If the Size is not multiple of 64 bytes, the padding is managed by hardware. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_HMACEx_SHA256_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size) -{ - uint32_t inputaddr; - - /* Process Locked */ - __HAL_LOCK(hhash); - - /* Change the HASH state */ - hhash->State = HAL_HASH_STATE_BUSY; - - /* Save buffer pointer and size in handle */ - hhash->pHashInBuffPtr = pInBuffer; - hhash->HashBuffSize = Size; - hhash->HashInCount = 0; - - /* Check if initialization phase has already been performed */ - if(hhash->Phase == HAL_HASH_PHASE_READY) - { - /* Check if key size is greater than 64 bytes */ - if(hhash->Init.KeySize > 64) - { - /* Select the HMAC SHA256 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA256 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY); - } - else - { - /* Select the HMAC SHA256 mode */ - HASH->CR |= (HASH_ALGOSELECTION_SHA256 | HASH_ALGOMODE_HMAC); - } - /* Reset the HASH processor core, so that the HASH will be ready to compute - the message digest of a new message */ - HASH->CR |= HASH_CR_INIT; - } - - /* Set the phase */ - hhash->Phase = HAL_HASH_PHASE_PROCESS; - - /* Configure the number of valid bits in last word of the message */ - __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize); - - /* Get the key address */ - inputaddr = (uint32_t)(hhash->Init.pKey); - - /* Set the HASH DMA transfer complete callback */ - hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt; - /* Set the DMA error callback */ - hhash->hdmain->XferErrorCallback = HASHEx_DMAError; - - /* Enable the DMA In DMA Stream */ - HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4 ? (hhash->Init.KeySize+3)/4:hhash->Init.KeySize/4)); - /* Enable DMA requests */ - HASH->CR |= (HASH_CR_DMAE); - - /* Process Unlocked */ - __HAL_UNLOCK(hhash); - - /* Return function status */ - return HAL_OK; -} - -/** - * @} - */ - -/** - * @} - */ -#endif /* STM32F437xx || STM32F439xx || STM32F479xx */ - -#endif /* HAL_HASH_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |