--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash.c	Thu Mar 07 15:06:43 2019 +0100
@@ -0,0 +1,1866 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_hash.c
+  * @author  MCD Application Team
+  * @brief   HASH HAL module driver.
+  *          This file provides firmware functions to manage the following 
+  *          functionalities of the HASH peripheral:
+  *           + Initialization and de-initialization functions
+  *           + HASH/HMAC Processing functions by algorithm using polling mode
+  *           + HASH/HMAC functions by algorithm using interrupt mode
+  *           + HASH/HMAC functions by algorithm using DMA mode
+  *           + Peripheral State functions
+  *         
+  @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_HMAC_SHA1_Start_IT())
+            (+++) 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_HMAC_SHA1_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 using 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_HASH_SHA1_Start()
+        (##) Interrupt mode: encryption and decryption APIs are not blocking functions
+                i.e. they process the data under interrupt
+                e.g. HAL_HASH_SHA1_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_HASH_SHA1_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_HASH_SHA1_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_HASH_SHA1_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_HASH_SHA1_Start_DMA().
+       After that, call the finish function in order to get the digest value
+       e.g. HAL_HASH_SHA1_Finish()
+    (#)Call HAL_HASH_DeInit() to deinitialize the HASH peripheral.
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2017 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 HASH HASH
+  * @brief HASH HAL module driver.
+  * @{
+  */
+
+#ifdef HAL_HASH_MODULE_ENABLED
+
+#if defined(STM32F415xx) || defined(STM32F417xx) || defined(STM32F437xx) || defined(STM32F439xx) || defined(STM32F479xx)
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup HASH_Private_Functions HASH Private Functions
+  * @{
+  */
+static void HASH_DMAXferCplt(DMA_HandleTypeDef *hdma);
+static void HASH_DMAError(DMA_HandleTypeDef *hdma);
+static void HASH_GetDigest(uint8_t *pMsgDigest, uint8_t Size);
+static void HASH_WriteData(uint8_t *pInBuffer, uint32_t Size);
+/**
+  * @}
+  */
+  
+/* Private functions ---------------------------------------------------------*/
+/** @addtogroup HASH_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  DMA HASH Input Data complete callback. 
+  * @param  hdma DMA handle
+  * @retval None
+  */
+static void HASH_DMAXferCplt(DMA_HandleTypeDef *hdma)
+{
+  HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+  uint32_t inputaddr = 0U;
+  uint32_t buffersize = 0U;
+  
+  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 <= 2U)
+    {
+      /* In case HashInCount = 1, set the DMA to transfer data to HASH DIN register */
+      if(hhash->HashInCount == 1U)
+      {
+        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 == 2U)
+      {
+        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, 8U * (buffersize % 4U));
+            
+      /* Set the HASH DMA transfer complete */
+      hhash->hdmain->XferCpltCallback = HASH_DMAXferCplt;
+      
+      /* Enable the DMA In DMA Stream */
+      HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (buffersize%4U ? (buffersize+3U)/4U:buffersize/4U));
+      
+      /* 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 = 0U;
+      
+      /* 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 HASH_DMAError(DMA_HandleTypeDef *hdma)
+{
+  HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+  hhash->State= HAL_HASH_STATE_READY;
+  HAL_HASH_ErrorCallback(hhash);
+}
+
+/**
+  * @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 HASH_WriteData(uint8_t *pInBuffer, uint32_t Size)
+{
+  uint32_t buffercounter;
+  uint32_t inputaddr = (uint32_t) pInBuffer;
+  
+  for(buffercounter = 0U; buffercounter < Size; buffercounter+=4)
+  {
+    HASH->DIN = *(uint32_t*)inputaddr;
+    inputaddr+=4U;
+  }
+}
+
+/**
+  * @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 HASH_GetDigest(uint8_t *pMsgDigest, uint8_t Size)
+{
+  uint32_t msgdigest = (uint32_t)pMsgDigest;
+  
+  switch(Size)
+  {
+  case 16U:
+    /* Read the message digest */
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[0U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[1U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[2U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[3U]);
+    break;
+  case 20U:
+    /* Read the message digest */
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[0U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[1U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[2U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[3U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[4U]);
+    break;
+  case 28U:
+    /* Read the message digest */
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[0U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[1U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[2U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[3U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[4U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6U]);
+    break;
+  case 32U:
+    /* Read the message digest */
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[0U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[1U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[2U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[3U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH->HR[4U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6U]);
+    msgdigest+=4U;
+    *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[7U]);
+    break;
+  default:
+    break;
+  }
+}
+
+/**
+  * @}
+  */
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup HASH_Exported_Functions
+  * @{
+  */
+  
+
+/** @addtogroup HASH_Exported_Functions_Group1 Initialization and de-initialization functions 
+ *  @brief    Initialization and Configuration functions. 
+ *
+@verbatim    
+ ===============================================================================
+              ##### Initialization and de-initialization functions #####
+ ===============================================================================
+    [..]  This section provides functions allowing to:
+      (+) Initialize the HASH according to the specified parameters 
+          in the HASH_InitTypeDef and creates the associated handle.
+      (+) DeInitialize the HASH peripheral.
+      (+) Initialize the HASH MSP.
+      (+) DeInitialize HASH MSP. 
+ 
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the HASH according to the specified parameters in the
+            HASH_HandleTypeDef and creates the associated handle.
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_Init(HASH_HandleTypeDef *hhash)
+{
+  /* Check the hash handle allocation */
+  if(hhash == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the parameters */
+  assert_param(IS_HASH_DATATYPE(hhash->Init.DataType));
+   
+  if(hhash->State == HAL_HASH_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hhash->Lock = HAL_UNLOCKED;
+    /* Init the low level hardware */
+    HAL_HASH_MspInit(hhash);
+  }
+  
+  /* Change the HASH state */
+  hhash->State = HAL_HASH_STATE_BUSY;
+  
+  /* Reset HashInCount, HashBuffSize and HashITCounter */
+  hhash->HashInCount = 0U;
+  hhash->HashBuffSize = 0U;
+  hhash->HashITCounter = 0U;
+  
+  /* Set the data type */
+  HASH->CR |= (uint32_t) (hhash->Init.DataType);
+  
+  /* Change the HASH state */
+  hhash->State = HAL_HASH_STATE_READY;
+  
+  /* Set the default HASH phase */
+  hhash->Phase = HAL_HASH_PHASE_READY;
+  
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @brief  DeInitializes the HASH peripheral.
+  * @note   This API must be called before starting a new processing. 
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_DeInit(HASH_HandleTypeDef *hhash)
+{ 
+  /* Check the HASH handle allocation */
+  if(hhash == NULL)
+  {
+    return HAL_ERROR;
+  }
+  
+  /* Change the HASH state */
+  hhash->State = HAL_HASH_STATE_BUSY;
+  
+  /* Set the default HASH phase */
+  hhash->Phase = HAL_HASH_PHASE_READY;
+  
+  /* Reset HashInCount, HashBuffSize and HashITCounter */
+  hhash->HashInCount = 0U;
+  hhash->HashBuffSize = 0U;
+  hhash->HashITCounter = 0U;
+  
+  /* DeInit the low level hardware */
+  HAL_HASH_MspDeInit(hhash);
+  
+  /* Change the HASH state */
+  hhash->State = HAL_HASH_STATE_RESET;  
+
+  /* Release Lock */
+  __HAL_UNLOCK(hhash);
+
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @brief  Initializes the HASH MSP.
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval None
+  */
+__weak void HAL_HASH_MspInit(HASH_HandleTypeDef *hhash)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hhash);
+  /* NOTE: This function Should not be modified, when the callback is needed,
+           the HAL_HASH_MspInit could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  DeInitializes HASH MSP.
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval None
+  */
+__weak void HAL_HASH_MspDeInit(HASH_HandleTypeDef *hhash)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hhash);
+  /* NOTE: This function Should not be modified, when the callback is needed,
+           the HAL_HASH_MspDeInit could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  Input data transfer complete callback.
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval None
+  */
+ __weak void HAL_HASH_InCpltCallback(HASH_HandleTypeDef *hhash)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hhash);
+  /* NOTE: This function Should not be modified, when the callback is needed,
+           the HAL_HASH_InCpltCallback could be implemented in the user file
+   */ 
+}
+
+/**
+  * @brief  Data transfer Error callback.
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval None
+  */
+ __weak void HAL_HASH_ErrorCallback(HASH_HandleTypeDef *hhash)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hhash);
+  /* NOTE: This function Should not be modified, when the callback is needed,
+           the HAL_HASH_ErrorCallback could be implemented in the user file
+   */ 
+}
+
+/**
+  * @brief  Digest computation complete callback. It is used only with interrupt.
+  * @note   This callback is not relevant with DMA.
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval None
+  */
+ __weak void HAL_HASH_DgstCpltCallback(HASH_HandleTypeDef *hhash)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hhash);
+  /* NOTE: This function Should not be modified, when the callback is needed,
+           the HAL_HASH_DgstCpltCallback could be implemented in the user file
+   */ 
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup HASH_Exported_Functions_Group2 HASH processing functions using polling mode 
+ *  @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:
+      (+) MD5
+      (+) SHA1
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the HASH peripheral in MD5 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 multiple of 64 bytes, appending the input buffer is possible.
+  *          If the Size is not multiple of 64 bytes, the padding is managed by hardware
+  *          and appending the input buffer is no more possible.
+  * @param  pOutBuffer Pointer to the computed digest. Its size must be 16 bytes.
+  * @param  Timeout Timeout value
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_MD5_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
+{
+  uint32_t tickstart = 0U;
+  
+  /* 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 MD5 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_MD5 | 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 */
+  HASH_WriteData(pInBuffer, Size);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+  
+  while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
+  {
+    /* Check for the Timeout */
+    if(Timeout != HAL_MAX_DELAY)
+    {
+      if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout))
+      {
+        /* Change state */
+        hhash->State = HAL_HASH_STATE_TIMEOUT;
+        
+        /* Process Unlocked */
+        __HAL_UNLOCK(hhash);
+        
+        return HAL_TIMEOUT;
+      }
+    }
+  }
+  
+  /* Read the message digest */
+  HASH_GetDigest(pOutBuffer, 16U);
+  
+  /* 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 MD5 mode then writes the pInBuffer.
+  * @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 multiple of 64 bytes, appending the input buffer is possible.
+  *          If the Size is not multiple of 64 bytes, the padding is managed by hardware
+  *          and appending the input buffer is no more possible.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_MD5_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 MD5 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_MD5 | 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 */
+  HASH_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 SHA1 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_HASH_SHA1_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
+{
+  uint32_t tickstart = 0U;   
+
+  /* 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 SHA1 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_SHA1 | 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 */
+  HASH_WriteData(pInBuffer, Size);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+
+  while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
+    {
+      /* Check for the Timeout */
+      if(Timeout != HAL_MAX_DELAY)
+      {
+        if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout))
+        {
+          /* Change state */
+          hhash->State = HAL_HASH_STATE_TIMEOUT;
+          
+          /* Process Unlocked */
+          __HAL_UNLOCK(hhash);
+          
+          return HAL_TIMEOUT;
+        }
+      }
+    }
+  
+  /* Read the message digest */
+  HASH_GetDigest(pOutBuffer, 20U);
+  
+  /* 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 SHA1 mode then processes pInBuffer.
+  * @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.
+  * @note  Input buffer size in bytes must be a multiple of 4 otherwise the digest computation is corrupted.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_SHA1_Accumulate(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
+{
+  /* Check the parameters */
+  assert_param(IS_HASH_SHA1_BUFFER_SIZE(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 SHA1 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_SHA1 | 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 */
+  HASH_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 HASH_Exported_Functions_Group3 HASH processing functions using interrupt mode
+ *  @brief   processing functions using interrupt mode. 
+ *
+@verbatim   
+ ===============================================================================
+              ##### HASH processing using interrupt mode functions #####
+ ===============================================================================  
+    [..]  This section provides functions allowing to calculate in interrupt mode
+          the hash value using one of the following algorithms:
+      (+) MD5
+      (+) SHA1
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the HASH peripheral in MD5 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 16 bytes.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_MD5_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer)
+{
+  uint32_t inputaddr;
+  uint32_t outputaddr;
+  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 SHA1 mode */
+      HASH->CR |= HASH_ALGOSELECTION_MD5;
+      /* 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 = 0U;
+    
+    /* 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))
+  {
+    outputaddr = (uint32_t)hhash->pHashOutBuffPtr;
+    /* Read the Output block from the Output FIFO */
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[0U]);
+    outputaddr+=4U;
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[1U]);
+    outputaddr+=4U;
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[2U]);
+    outputaddr+=4U;
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[3U]);
+    
+    if(hhash->HashInCount == 0U)
+    {
+      /* Disable Interrupts */
+      HASH->IMR = 0U;
+      /* 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 >= 68U)
+    {
+      inputaddr = (uint32_t)hhash->pHashInBuffPtr;
+      /* Write the Input block in the Data IN register */
+      for(buffercounter = 0U; buffercounter < 64U; buffercounter+=4U)
+      {
+        HASH->DIN = *(uint32_t*)inputaddr;
+        inputaddr+=4U;
+      }
+      if(hhash->HashITCounter == 0U)
+      {
+        HASH->DIN = *(uint32_t*)inputaddr;
+
+        if(hhash->HashInCount >= 68U)
+        {
+          /* Decrement buffer counter */
+          hhash->HashInCount -= 68U;
+          hhash->pHashInBuffPtr+= 68U;
+        }
+        else
+        {
+          hhash->HashInCount = 0U;
+          hhash->pHashInBuffPtr+= hhash->HashInCount;
+        }
+        /* Set Interrupt counter */
+        hhash->HashITCounter = 1U;
+      }
+      else
+      {
+        /* Decrement buffer counter */
+        hhash->HashInCount -= 64U;
+        hhash->pHashInBuffPtr+= 64U;
+      }
+    }
+    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 > 4U) && (inputcounter%4U))
+      {
+        inputcounter = (inputcounter+4U-inputcounter%4U);
+      }
+      else if ((inputcounter < 4U) && (inputcounter != 0U))
+      {
+        inputcounter = 4U;
+      }
+      /* Write the Input block in the Data IN register */
+      for(buffercounter = 0U; buffercounter < inputcounter/4U; buffercounter++)
+      {
+        HASH->DIN = *(uint32_t*)inputaddr;
+        inputaddr+=4U;
+      }
+      /* Start the digest calculation */
+      __HAL_HASH_START_DIGEST();
+      /* Reset buffer counter */
+      hhash->HashInCount = 0U;
+      /* 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 SHA1 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_HASH_SHA1_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer)
+{
+  uint32_t inputaddr;
+  uint32_t outputaddr;
+  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 SHA1 mode */
+      HASH->CR |= HASH_ALGOSELECTION_SHA1;
+      /* 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 = 0U;
+    
+    /* 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))
+  {
+    outputaddr = (uint32_t)hhash->pHashOutBuffPtr;
+    /* Read the Output block from the Output FIFO */
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[0U]);
+    outputaddr+=4U;
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[1U]);
+    outputaddr+=4U;
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[2U]);
+    outputaddr+=4U;
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[3U]);
+    outputaddr+=4U;
+    *(uint32_t*)(outputaddr) = __REV(HASH->HR[4U]);
+    if(hhash->HashInCount == 0U)
+    {
+      /* Disable Interrupts */
+      HASH->IMR = 0U;
+      /* 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 >= 68U)
+    {
+      inputaddr = (uint32_t)hhash->pHashInBuffPtr;
+      /* Write the Input block in the Data IN register */
+      for(buffercounter = 0U; buffercounter < 64U; buffercounter+=4U)
+      {
+        HASH->DIN = *(uint32_t*)inputaddr;
+        inputaddr+=4U;
+      }
+      if(hhash->HashITCounter == 0U)
+      {
+        HASH->DIN = *(uint32_t*)inputaddr;
+        if(hhash->HashInCount >= 68U)
+        {
+          /* Decrement buffer counter */
+          hhash->HashInCount -= 68U;
+          hhash->pHashInBuffPtr+= 68U;
+        }
+        else
+        {
+          hhash->HashInCount = 0U;
+          hhash->pHashInBuffPtr+= hhash->HashInCount;
+        }
+        /* Set Interrupt counter */
+        hhash->HashITCounter = 1U;
+      }
+      else
+      {
+        /* Decrement buffer counter */
+        hhash->HashInCount -= 64U;
+        hhash->pHashInBuffPtr+= 64U;
+      }
+    }
+    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 > 4U) && (inputcounter%4U))
+      {
+        inputcounter = (inputcounter+4U-inputcounter%4U);
+      }
+      else if ((inputcounter < 4U) && (inputcounter != 0U))
+      {
+        inputcounter = 4U;
+      }
+      /* Write the Input block in the Data IN register */
+      for(buffercounter = 0U; buffercounter < inputcounter/4U; buffercounter++)
+      {
+        HASH->DIN = *(uint32_t*)inputaddr;
+        inputaddr+=4U;
+      }
+      /* Start the digest calculation */
+      __HAL_HASH_START_DIGEST();
+      /* Reset buffer counter */
+      hhash->HashInCount = 0U;
+      /* 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_HASH_IRQHandler(HASH_HandleTypeDef *hhash)
+{
+  switch(HASH->CR & HASH_CR_ALGO)
+  {
+    case HASH_ALGOSELECTION_MD5:
+       HAL_HASH_MD5_Start_IT(hhash, NULL, 0U, NULL);
+    break;
+    
+    case HASH_ALGOSELECTION_SHA1:
+      HAL_HASH_SHA1_Start_IT(hhash, NULL, 0U, NULL);
+    break;
+    
+    default:
+    break;
+  }
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup HASH_Exported_Functions_Group4 HASH processing functions using DMA mode
+ *  @brief   processing functions using DMA mode. 
+ *
+@verbatim   
+ ===============================================================================
+              ##### HASH processing using DMA mode functions #####
+ ===============================================================================  
+    [..]  This section provides functions allowing to calculate in DMA mode
+          the hash value using one of the following algorithms:
+      (+) MD5
+      (+) SHA1
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the HASH peripheral in MD5 mode then enables DMA to
+            control data transfer. Use HAL_HASH_MD5_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_HASH_MD5_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 MD5 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_MD5 | 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 = HASH_DMAXferCplt;
+  /* Set the DMA error callback */
+  hhash->hdmain->XferErrorCallback = HASH_DMAError;
+  
+  /* Enable the DMA In DMA Stream */
+  HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4U ? (Size+3U)/4U:Size/4U));
+  
+  /* 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 MD5 mode
+  * @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 16 bytes.
+  * @param  Timeout Timeout value  
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_MD5_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout)
+{
+  uint32_t tickstart = 0U;   
+  
+   /* 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 == 0U)||((HAL_GetTick() - tickstart ) > Timeout))
+      {
+        /* Change state */
+        hhash->State = HAL_HASH_STATE_TIMEOUT;
+        
+        /* Process Unlocked */
+        __HAL_UNLOCK(hhash);
+        
+        return HAL_TIMEOUT;
+      }
+    }
+  }
+  
+  /* Read the message digest */
+  HASH_GetDigest(pOutBuffer, 16U);
+      
+  /* 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 SHA1 mode then enables DMA to
+            control data transfer. Use HAL_HASH_SHA1_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_HASH_SHA1_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 SHA1 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_SHA1;
+    HASH->CR |= 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 = HASH_DMAXferCplt;
+  /* Set the DMA error callback */
+  hhash->hdmain->XferErrorCallback = HASH_DMAError;
+  
+  /* Enable the DMA In DMA Stream */
+  HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4U ? (Size+3U)/4U:Size/4U));
+  
+  /* 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 SHA1 mode.
+  * @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 20 bytes.  
+  * @param  Timeout Timeout value    
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HASH_SHA1_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout)
+{
+  uint32_t tickstart = 0U;   
+  
+   /* 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 == 0U)||((HAL_GetTick() - tickstart ) > Timeout))
+      {
+        /* Change state */
+        hhash->State = HAL_HASH_STATE_TIMEOUT;
+        
+        /* Process Unlocked */
+        __HAL_UNLOCK(hhash);
+        
+        return HAL_TIMEOUT;
+      }
+    }
+  }
+  
+  /* Read the message digest */
+  HASH_GetDigest(pOutBuffer, 20U);
+  
+  /* Change HASH peripheral state */
+  hhash->State = HAL_HASH_STATE_READY;
+  
+   /* Process UnLock */
+  __HAL_UNLOCK(hhash);
+  
+  /* Return function status */
+  return HAL_OK;
+}
+
+
+/**
+  * @}
+  */
+
+/** @defgroup HASH_Exported_Functions_Group5 HASH-MAC (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:
+      (+) MD5
+      (+) SHA1
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the HASH peripheral in HMAC MD5 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_HMAC_MD5_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
+{
+  uint32_t tickstart = 0U;   
+  
+   /* 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 > 64U)
+    {
+      /* Select the HMAC MD5 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_MD5 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY | HASH_CR_INIT);
+    }
+    else
+    {
+      /* Select the HMAC MD5 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_MD5 | 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 */
+  HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+
+  while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
+  {
+    /* Check for the Timeout */
+    if(Timeout != HAL_MAX_DELAY)
+    {
+      if((Timeout == 0U)||((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 */
+  HASH_WriteData(pInBuffer, Size);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+  
+  while(HAL_IS_BIT_SET(HASH->SR, 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 */
+  HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+  
+  while(HAL_IS_BIT_SET(HASH->SR, 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 */
+  HASH_GetDigest(pOutBuffer, 16U);
+  
+  /* 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 SHA1 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_HMAC_SHA1_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
+{
+  uint32_t tickstart = 0U;   
+  
+  /* 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 > 64U)
+    {
+      /* Select the HMAC SHA1 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_SHA1 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY | HASH_CR_INIT);
+    }
+    else
+    {
+      /* Select the HMAC SHA1 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_SHA1 | 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 */
+  HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+  
+  while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
+  {
+    /* Check for the Timeout */
+    if(Timeout != HAL_MAX_DELAY)
+    {
+      if((Timeout == 0U)||((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 */
+  HASH_WriteData(pInBuffer, Size);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+  
+  while(HAL_IS_BIT_SET(HASH->SR, 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 */
+  HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
+  
+  /* Start the digest calculation */
+  __HAL_HASH_START_DIGEST();
+  
+  /* Get tick */
+  tickstart = HAL_GetTick();
+
+  while(HAL_IS_BIT_SET(HASH->SR, 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 */
+  HASH_GetDigest(pOutBuffer, 20U);
+  
+  /* Change the HASH state */
+  hhash->State = HAL_HASH_STATE_READY;
+  
+  /* Process Unlocked */
+  __HAL_UNLOCK(hhash);
+  
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup HASH_Exported_Functions_Group6 HASH-MAC (HMAC) processing functions using DMA mode 
+ *  @brief   HMAC processing functions using DMA mode . 
+ *
+@verbatim   
+ ===============================================================================
+                ##### HMAC processing using DMA mode functions #####
+ ===============================================================================  
+    [..]  This section provides functions allowing to calculate in DMA mode
+          the HMAC value using one of the following algorithms:
+      (+) MD5
+      (+) SHA1
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the HASH peripheral in HMAC MD5 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_HMAC_MD5_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
+{
+  uint32_t inputaddr  = 0U;
+  
+   /* 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 = 0U;
+  
+  /* 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 > 64U)
+    {
+      /* Select the HMAC MD5 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_MD5 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY | HASH_CR_INIT);
+    }
+    else
+    {
+      /* Select the HMAC MD5 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_MD5 | 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 = HASH_DMAXferCplt;
+  /* Set the DMA error callback */
+  hhash->hdmain->XferErrorCallback = HASH_DMAError;
+  
+  /* Enable the DMA In DMA Stream */
+  HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4U ? (hhash->Init.KeySize+3U)/4U:hhash->Init.KeySize/4U));
+  /* 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 SHA1 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_HMAC_SHA1_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
+{
+  uint32_t inputaddr  = 0U;
+  
+  /* 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 = 0U;
+  
+  /* 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 > 64U)
+    {
+      /* Select the HMAC SHA1 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_SHA1 | HASH_ALGOMODE_HMAC | HASH_HMAC_KEYTYPE_LONGKEY | HASH_CR_INIT);
+    }
+    else
+    {
+      /* Select the HMAC SHA1 mode */
+      HASH->CR |= (HASH_ALGOSELECTION_SHA1 | 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 = HASH_DMAXferCplt;
+  /* Set the DMA error callback */
+  hhash->hdmain->XferErrorCallback = HASH_DMAError;
+  
+  /* Enable the DMA In DMA Stream */
+  HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4U ? (hhash->Init.KeySize+3U)/4U:hhash->Init.KeySize/4U));
+  /* Enable DMA requests */
+  HASH->CR |= (HASH_CR_DMAE);
+  
+  /* Process Unlocked */
+  __HAL_UNLOCK(hhash);
+  
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup HASH_Exported_Functions_Group7 Peripheral State functions 
+ *  @brief   Peripheral State functions. 
+ *
+@verbatim   
+ ===============================================================================
+                      ##### Peripheral State functions #####
+ ===============================================================================  
+    [..]
+    This subsection permits to get in run-time the status of the peripheral.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief return the HASH state
+  * @param  hhash pointer to a HASH_HandleTypeDef structure that contains
+  *         the configuration information for HASH module
+  * @retval HAL state
+  */
+HAL_HASH_StateTypeDef HAL_HASH_GetState(HASH_HandleTypeDef *hhash)
+{
+  return hhash->State;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* STM32F415xx || STM32F417xx || STM32F437xx || STM32F439xx || STM32F479xx */
+#endif /* HAL_HASH_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/