text: /**
    ******************************************************************************
    * @file    stm32f4xx_hal_cryp_ex.c
    * @author  MCD Application Team
    * @version V1.4.0
    * @date    14-August-2015
    * @brief   Extended CRYP HAL module driver
    *          This file provides firmware functions to manage the following 
    *          functionalities of CRYP extension peripheral:
    *           + Extended AES processing functions     
    *  
    @verbatim
    ==============================================================================
                       ##### How to use this driver #####
    ==============================================================================
      [..]
      The CRYP Extension HAL driver can be used as follows:
      (#)Initialize the CRYP low level resources by implementing the HAL_CRYP_MspInit():
          (##) Enable the CRYP interface clock using __HAL_RCC_CRYP_CLK_ENABLE()
          (##) In case of using interrupts (e.g. HAL_CRYPEx_AESGCM_Encrypt_IT())
              (+++) Configure the CRYP interrupt priority using HAL_NVIC_SetPriority()
              (+++) Enable the CRYP IRQ handler using HAL_NVIC_EnableIRQ()
              (+) In CRYP IRQ handler, call HAL_CRYP_IRQHandler()
          (##) In case of using DMA to control data transfer (e.g. HAL_AES_ECB_Encrypt_DMA())
              (+++) Enable the DMAx interface clock using __DMAx_CLK_ENABLE()
              (+++) Configure and enable two DMA streams one for managing data transfer from
                  memory to peripheral (input stream) and another stream for managing data
                  transfer from peripheral to memory (output stream)
              (+++) Associate the initialized DMA handle to the CRYP DMA handle
                  using  __HAL_LINKDMA()
              (+++) Configure the priority and enable the NVIC for the transfer complete
                  interrupt on the two DMA Streams. The output stream should have higher
                  priority than the input stream HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ()
      (#)Initialize the CRYP HAL using HAL_CRYP_Init(). This function configures mainly:
          (##) The data type: 1-bit, 8-bit, 16-bit and 32-bit
          (##) The key size: 128, 192 and 256. This parameter is relevant only for AES
          (##) The encryption/decryption key. Its size depends on the algorithm
                  used for encryption/decryption
          (##) The initialization vector (counter). It is not used ECB mode.
      (#)Three processing (encryption/decryption) functions are available:
          (##) Polling mode: encryption and decryption APIs are blocking functions
               i.e. they process the data and wait till the processing is finished
               e.g. HAL_CRYPEx_AESGCM_Encrypt()
          (##) Interrupt mode: encryption and decryption APIs are not blocking functions
                  i.e. they process the data under interrupt
                  e.g. HAL_CRYPEx_AESGCM_Encrypt_IT()
          (##) DMA mode: encryption and decryption APIs are not blocking functions
                  i.e. the data transfer is ensured by DMA
                  e.g. HAL_CRYPEx_AESGCM_Encrypt_DMA()
      (#)When the processing function is called at first time after HAL_CRYP_Init()
         the CRYP peripheral is initialized and processes the buffer in input.
         At second call, the processing function performs an append of the already
         processed buffer.
         When a new data block is to be processed, call HAL_CRYP_Init() then the
         processing function.
      (#)In AES-GCM and AES-CCM modes are an authenticated encryption algorithms
         which provide authentication messages.
         HAL_AES_GCM_Finish() and HAL_AES_CCM_Finish() are used to provide those
         authentication messages.
         Call those functions after the processing ones (polling, interrupt or DMA).
         e.g. in AES-CCM mode call HAL_CRYPEx_AESCCM_Encrypt() to encrypt the plain data
              then call HAL_CRYPEx_AESCCM_Finish() to get the authentication message
      @note: For CCM Encrypt/Decrypt API's, only DataType = 8-bit is supported by this version.
      @note: The HAL_CRYPEx_AESGCM_xxxx() implementation is limited to 32bits inputs data length 
             (Plain/Cyphertext, Header) compared with GCM standards specifications (800-38D).
      (#)Call HAL_CRYP_DeInit() to deinitialize the CRYP peripheral.
  
    @endverbatim
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; 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 CRYPEx CRYPEx
    * @brief CRYP Extension HAL module driver.
    * @{
    */
  
  #ifdef HAL_CRYP_MODULE_ENABLED
  
  #if defined(STM32F437xx) || defined(STM32F439xx) || defined(STM32F479xx)
  
  /* Private typedef -----------------------------------------------------------*/
  /* Private define ------------------------------------------------------------*/
  /** @addtogroup CRYPEx_Private_define
    * @{
    */
  #define CRYPEx_TIMEOUT_VALUE  1
  /**
    * @}
    */ 
    
  /* Private macro -------------------------------------------------------------*/
  /* Private variables ---------------------------------------------------------*/
  /* Private function prototypes -----------------------------------------------*/
  /** @defgroup CRYPEx_Private_Functions_prototypes  CRYP Private Functions Prototypes
    * @{
    */
  static void CRYPEx_GCMCCM_SetInitVector(CRYP_HandleTypeDef *hcryp, uint8_t *InitVector);
  static void CRYPEx_GCMCCM_SetKey(CRYP_HandleTypeDef *hcryp, uint8_t *Key, uint32_t KeySize);
  static HAL_StatusTypeDef CRYPEx_GCMCCM_ProcessData(CRYP_HandleTypeDef *hcryp, uint8_t *Input, uint16_t Ilength, uint8_t *Output, uint32_t Timeout);
  static HAL_StatusTypeDef CRYPEx_GCMCCM_SetHeaderPhase(CRYP_HandleTypeDef *hcryp, uint8_t* Input, uint16_t Ilength, uint32_t Timeout);
  static void CRYPEx_GCMCCM_DMAInCplt(DMA_HandleTypeDef *hdma);
  static void CRYPEx_GCMCCM_DMAOutCplt(DMA_HandleTypeDef *hdma);
  static void CRYPEx_GCMCCM_DMAError(DMA_HandleTypeDef *hdma);
  static void CRYPEx_GCMCCM_SetDMAConfig(CRYP_HandleTypeDef *hcryp, uint32_t inputaddr, uint16_t Size, uint32_t outputaddr);
  /**
    * @}
    */ 
    
  /* Private functions ---------------------------------------------------------*/
  /** @addtogroup CRYPEx_Private_Functions
    * @{
    */
  
  /**
    * @brief  DMA CRYP Input Data process complete callback. 
    * @param  hdma: DMA handle
    * @retval None
    */
  static void CRYPEx_GCMCCM_DMAInCplt(DMA_HandleTypeDef *hdma)  
  {
    CRYP_HandleTypeDef* hcryp = ( CRYP_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
    
    /* Disable the DMA transfer for input Fifo request by resetting the DIEN bit
       in the DMACR register */
    hcryp->Instance->DMACR &= (uint32_t)(~CRYP_DMACR_DIEN);
    
    /* Call input data transfer complete callback */
    HAL_CRYP_InCpltCallback(hcryp);
  }
  
  /**
    * @brief  DMA CRYP Output Data process complete callback.
    * @param  hdma: DMA handle
    * @retval None
    */
  static void CRYPEx_GCMCCM_DMAOutCplt(DMA_HandleTypeDef *hdma)
  {
    CRYP_HandleTypeDef* hcryp = ( CRYP_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
    
    /* Disable the DMA transfer for output Fifo request by resetting the DOEN bit
       in the DMACR register */
    hcryp->Instance->DMACR &= (uint32_t)(~CRYP_DMACR_DOEN);
    
    /* Enable the CRYP peripheral */
    __HAL_CRYP_DISABLE(hcryp);
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_READY;
    
    /* Call output data transfer complete callback */
    HAL_CRYP_OutCpltCallback(hcryp);
  }
  
  /**
    * @brief  DMA CRYP communication error callback. 
    * @param  hdma: DMA handle
    * @retval None
    */
  static void CRYPEx_GCMCCM_DMAError(DMA_HandleTypeDef *hdma)
  {
    CRYP_HandleTypeDef* hcryp = ( CRYP_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
    hcryp->State= HAL_CRYP_STATE_READY;
    HAL_CRYP_ErrorCallback(hcryp);
  }
  
  /**
    * @brief  Writes the Key in Key registers. 
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  Key: Pointer to Key buffer
    * @param  KeySize: Size of Key
    * @retval None
    */
  static void CRYPEx_GCMCCM_SetKey(CRYP_HandleTypeDef *hcryp, uint8_t *Key, uint32_t KeySize)
  {
    uint32_t keyaddr = (uint32_t)Key;
    
    switch(KeySize)
    {
    case CRYP_KEYSIZE_256B:
      /* Key Initialisation */
      hcryp->Instance->K0LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K0RR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K1LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K1RR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K2LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K2RR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K3LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K3RR = __REV(*(uint32_t*)(keyaddr));
      break;
    case CRYP_KEYSIZE_192B:
      hcryp->Instance->K1LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K1RR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K2LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K2RR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K3LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K3RR = __REV(*(uint32_t*)(keyaddr));
      break;
    case CRYP_KEYSIZE_128B:       
      hcryp->Instance->K2LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K2RR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K3LR = __REV(*(uint32_t*)(keyaddr));
      keyaddr+=4;
      hcryp->Instance->K3RR = __REV(*(uint32_t*)(keyaddr));
      break;
    default:
      break;
    }
  }
  
  /**
    * @brief  Writes the InitVector/InitCounter in IV registers.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  InitVector: Pointer to InitVector/InitCounter buffer
    * @retval None
    */
  static void CRYPEx_GCMCCM_SetInitVector(CRYP_HandleTypeDef *hcryp, uint8_t *InitVector)
  {
    uint32_t ivaddr = (uint32_t)InitVector;
    
    hcryp->Instance->IV0LR = __REV(*(uint32_t*)(ivaddr));
    ivaddr+=4;
    hcryp->Instance->IV0RR = __REV(*(uint32_t*)(ivaddr));
    ivaddr+=4;
    hcryp->Instance->IV1LR = __REV(*(uint32_t*)(ivaddr));
    ivaddr+=4;
    hcryp->Instance->IV1RR = __REV(*(uint32_t*)(ivaddr));
  }
  
  /**
    * @brief  Process Data: Writes Input data in polling mode and read the Output data.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  Input: Pointer to the Input buffer.
    * @param  Ilength: Length of the Input buffer, must be a multiple of 16
    * @param  Output: Pointer to the returned buffer
    * @param  Timeout: Timeout value 
    * @retval None
    */
  static HAL_StatusTypeDef CRYPEx_GCMCCM_ProcessData(CRYP_HandleTypeDef *hcryp, uint8_t *Input, uint16_t Ilength, uint8_t *Output, uint32_t Timeout)
  {
    uint32_t tickstart = 0;   
    uint32_t i = 0;
    uint32_t inputaddr  = (uint32_t)Input;
    uint32_t outputaddr = (uint32_t)Output;
    
    for(i=0; (i < Ilength); i+=16)
    {
      /* Write the Input block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR  = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      
      /* Get tick */
      tickstart = HAL_GetTick();
   
      while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE))
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
      }
      /* Read the Output block from the OUT FIFO */
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
    }
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Sets the header phase
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  Input: Pointer to the Input buffer.
    * @param  Ilength: Length of the Input buffer, must be a multiple of 16
    * @param  Timeout: Timeout value   
    * @retval None
    */
  static HAL_StatusTypeDef CRYPEx_GCMCCM_SetHeaderPhase(CRYP_HandleTypeDef *hcryp, uint8_t* Input, uint16_t Ilength, uint32_t Timeout)
  {
    uint32_t tickstart = 0;   
    uint32_t loopcounter = 0;
    uint32_t headeraddr = (uint32_t)Input;
    
    /***************************** Header phase *********************************/
    if(hcryp->Init.HeaderSize != 0)
    {
      /* Select header phase */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER);
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      for(loopcounter = 0; (loopcounter < hcryp->Init.HeaderSize); loopcounter+=16)
      {
        /* Get tick */
        tickstart = HAL_GetTick();
        
        while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM))
        {
          /* Check for the Timeout */
          if(Timeout != HAL_MAX_DELAY)
          {
            if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
            {
              /* Change state */
              hcryp->State = HAL_CRYP_STATE_TIMEOUT;
              
              /* Process Unlocked */
              __HAL_UNLOCK(hcryp);
              
              return HAL_TIMEOUT;
            }
          }
        }
        /* Write the Input block in the IN FIFO */
        hcryp->Instance->DR = *(uint32_t*)(headeraddr);
        headeraddr+=4;
        hcryp->Instance->DR = *(uint32_t*)(headeraddr);
        headeraddr+=4;
        hcryp->Instance->DR = *(uint32_t*)(headeraddr);
        headeraddr+=4;
        hcryp->Instance->DR = *(uint32_t*)(headeraddr);
        headeraddr+=4;
      }
      
      /* Wait until the complete message has been processed */
  
      /* Get tick */
      tickstart = HAL_GetTick();
  
      while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY)
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
      }
    }
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Sets the DMA configuration and start the DMA transfer.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  inputaddr: Address of the Input buffer
    * @param  Size: Size of the Input buffer, must be a multiple of 16
    * @param  outputaddr: Address of the Output buffer
    * @retval None
    */
  static void CRYPEx_GCMCCM_SetDMAConfig(CRYP_HandleTypeDef *hcryp, uint32_t inputaddr, uint16_t Size, uint32_t outputaddr)
  {
    /* Set the CRYP DMA transfer complete callback */
    hcryp->hdmain->XferCpltCallback = CRYPEx_GCMCCM_DMAInCplt;
    /* Set the DMA error callback */
    hcryp->hdmain->XferErrorCallback = CRYPEx_GCMCCM_DMAError;
    
    /* Set the CRYP DMA transfer complete callback */
    hcryp->hdmaout->XferCpltCallback = CRYPEx_GCMCCM_DMAOutCplt;
    /* Set the DMA error callback */
    hcryp->hdmaout->XferErrorCallback = CRYPEx_GCMCCM_DMAError;
    
    /* Enable the CRYP peripheral */
    __HAL_CRYP_ENABLE(hcryp);
    
    /* Enable the DMA In DMA Stream */
    HAL_DMA_Start_IT(hcryp->hdmain, inputaddr, (uint32_t)&hcryp->Instance->DR, Size/4);
    
    /* Enable In DMA request */
    hcryp->Instance->DMACR = CRYP_DMACR_DIEN;
    
    /* Enable the DMA Out DMA Stream */
    HAL_DMA_Start_IT(hcryp->hdmaout, (uint32_t)&hcryp->Instance->DOUT, outputaddr, Size/4);
    
    /* Enable Out DMA request */
    hcryp->Instance->DMACR |= CRYP_DMACR_DOEN;
  }
  
  /**
    * @}
    */ 
  
  /* Exported functions---------------------------------------------------------*/
  /** @addtogroup CRYPEx_Exported_Functions
    * @{
    */
  
  /** @defgroup CRYPEx_Exported_Functions_Group1 Extended AES processing functions 
   *  @brief   Extended processing functions. 
   *
  @verbatim   
    ==============================================================================
                ##### Extended AES processing functions #####
    ==============================================================================  
      [..]  This section provides functions allowing to:
        (+) Encrypt plaintext using AES-128/192/256 using GCM and CCM chaining modes
        (+) Decrypt cyphertext using AES-128/192/256 using GCM and CCM chaining modes
        (+) Finish the processing. This function is available only for GCM and CCM
      [..]  Three processing methods are available:
        (+) Polling mode
        (+) Interrupt mode
        (+) DMA mode
  
  @endverbatim
    * @{
    */
  
  
  /**
    * @brief  Initializes the CRYP peripheral in AES CCM encryption mode then 
    *         encrypt pPlainData. The cypher data are available in pCypherData.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pPlainData: Pointer to the plaintext buffer
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @param  Timeout: Timeout duration
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Encrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData, uint32_t Timeout)
  {
    uint32_t tickstart = 0;
    uint32_t headersize = hcryp->Init.HeaderSize;
    uint32_t headeraddr = (uint32_t)hcryp->Init.Header;
    uint32_t loopcounter = 0;
    uint32_t bufferidx = 0;
    uint8_t blockb0[16] = {0};/* Block B0 */
    uint8_t ctr[16] = {0}; /* Counter */
    uint32_t b0addr = (uint32_t)blockb0;
    
    /* Process Locked */
    __HAL_LOCK(hcryp);
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_BUSY;
    
    /* Check if initialization phase has already been performed */
    if(hcryp->Phase == HAL_CRYP_PHASE_READY)
    {
      /************************ Formatting the header block *********************/
      if(headersize != 0)
      {
        /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */
        if(headersize < 65280)
        {
          hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF);
          hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF);
          headersize += 2;
        }
        else
        {
          /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */
          hcryp->Init.pScratch[bufferidx++] = 0xFF;
          hcryp->Init.pScratch[bufferidx++] = 0xFE;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff;
          headersize += 6;
        }
        /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */
        for(loopcounter = 0; loopcounter < headersize; loopcounter++)
        {
          hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter];
        }
        /* Check if the header size is modulo 16 */
        if ((headersize % 16) != 0)
        {
          /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */
          for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++)
          {
            hcryp->Init.pScratch[loopcounter] = 0;
          }
          /* Set the header size to modulo 16 */
          headersize = ((headersize/16) + 1) * 16;
        }
        /* Set the pointer headeraddr to hcryp->Init.pScratch */
        headeraddr = (uint32_t)hcryp->Init.pScratch;
      }
      /*********************** Formatting the block B0 **************************/
      if(headersize != 0)
      {
        blockb0[0] = 0x40;
      }
      /* Flags byte */
      /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */
      blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3);
      blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07);
   
      for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++)
      {
        blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter];
      }
      for ( ; loopcounter < 13; loopcounter++)
      {
        blockb0[loopcounter+1] = 0;
      }
      
      blockb0[14] = (Size >> 8);
      blockb0[15] = (Size & 0xFF);
      
      /************************* Formatting the initial counter *****************/
      /* Byte 0:
         Bits 7 and 6 are reserved and shall be set to 0
         Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter blocks
         are distinct from B0
         Bits 0, 1, and 2 contain the same encoding of q as in B0
      */
      ctr[0] = blockb0[0] & 0x07;
      /* byte 1 to NonceSize is the IV (Nonce) */
      for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++)
      {
        ctr[loopcounter] = blockb0[loopcounter];
      }
      /* Set the LSB to 1 */
      ctr[15] |= 0x01;
      
      /* Set the key */
      CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
      
      /* Set the CRYP peripheral in AES CCM mode */
      __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT);
      
      /* Set the Initialization Vector */
      CRYPEx_GCMCCM_SetInitVector(hcryp, ctr);
      
      /* Select init phase */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT);
      
      b0addr = (uint32_t)blockb0;
      /* Write the blockb0 block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      b0addr+=4;
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      b0addr+=4;
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      b0addr+=4;
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Get tick */
      tickstart = HAL_GetTick();
  
      while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
          
            return HAL_TIMEOUT;
          }
        }
      }
      /***************************** Header phase *******************************/
      if(headersize != 0)
      {
        /* Select header phase */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER);
        
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
        
        for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16)
        {
          /* Get tick */
          tickstart = HAL_GetTick();
  
          while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM))
          {
            {
              /* Check for the Timeout */
              if(Timeout != HAL_MAX_DELAY)
              {
                if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
                {
                  /* Change state */
                  hcryp->State = HAL_CRYP_STATE_TIMEOUT;
                  
                  /* Process Unlocked */
                  __HAL_UNLOCK(hcryp);
                  
                  return HAL_TIMEOUT;
                }
              }
            }
          }
          /* Write the header block in the IN FIFO */
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
        }
        
        /* Get tick */
        tickstart = HAL_GetTick();
  
        while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY)
        {
          /* Check for the Timeout */
          if(Timeout != HAL_MAX_DELAY)
          {
            if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
            {
              /* Change state */
              hcryp->State = HAL_CRYP_STATE_TIMEOUT;
              
              /* Process Unlocked */
              __HAL_UNLOCK(hcryp);
              
              return HAL_TIMEOUT;
            }
          }
        }
      }
      /* Save formatted counter into the scratch buffer pScratch */
      for(loopcounter = 0; (loopcounter < 16); loopcounter++)
      {
        hcryp->Init.pScratch[loopcounter] = ctr[loopcounter];
      }
      /* Reset bit 0 */
      hcryp->Init.pScratch[15] &= 0xfe;
      
      /* Select payload phase once the header phase is performed */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
      
      /* Flush FIFO */
      __HAL_CRYP_FIFO_FLUSH(hcryp);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Set the phase */
      hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
    }
    
    /* Write Plain Data and Get Cypher Data */
    if(CRYPEx_GCMCCM_ProcessData(hcryp,pPlainData, Size, pCypherData, Timeout) != HAL_OK)
    {
      return HAL_TIMEOUT;
    }
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hcryp);
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES GCM encryption mode then 
    *         encrypt pPlainData. The cypher data are available in pCypherData.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pPlainData: Pointer to the plaintext buffer
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @param  Timeout: Timeout duration
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Encrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData, uint32_t Timeout)
  {
    uint32_t tickstart = 0;
    
    /* Process Locked */
    __HAL_LOCK(hcryp);
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_BUSY;
    
    /* Check if initialization phase has already been performed */
    if(hcryp->Phase == HAL_CRYP_PHASE_READY)
    {
      /* Set the key */
      CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
      
      /* Set the CRYP peripheral in AES GCM mode */
      __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT);
      
      /* Set the Initialization Vector */
      CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect);
      
      /* Flush FIFO */
      __HAL_CRYP_FIFO_FLUSH(hcryp);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Get tick */
      tickstart = HAL_GetTick();
  
      while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
      }
      
      /* Set the header phase */
      if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, Timeout) != HAL_OK)
      {
        return HAL_TIMEOUT;
      }
      
      /* Disable the CRYP peripheral */
      __HAL_CRYP_DISABLE(hcryp);
      
      /* Select payload phase once the header phase is performed */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
      
      /* Flush FIFO */
      __HAL_CRYP_FIFO_FLUSH(hcryp);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Set the phase */
      hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
    }
    
    /* Write Plain Data and Get Cypher Data */
    if(CRYPEx_GCMCCM_ProcessData(hcryp, pPlainData, Size, pCypherData, Timeout) != HAL_OK)
    {
      return HAL_TIMEOUT;
    }
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hcryp);
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES GCM decryption mode then
    *         decrypted pCypherData. The cypher data are available in pPlainData.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @param  Size: Length of the cyphertext buffer, must be a multiple of 16
    * @param  pPlainData: Pointer to the plaintext buffer 
    * @param  Timeout: Timeout duration
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Decrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData, uint32_t Timeout)
  {
    uint32_t tickstart = 0;   
    
    /* Process Locked */
    __HAL_LOCK(hcryp);
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_BUSY;
    
    /* Check if initialization phase has already been performed */
    if(hcryp->Phase == HAL_CRYP_PHASE_READY)
    {
      /* Set the key */
      CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
      
      /* Set the CRYP peripheral in AES GCM decryption mode */
      __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_DECRYPT);
      
      /* Set the Initialization Vector */
      CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect);
      
      /* Flush FIFO */
      __HAL_CRYP_FIFO_FLUSH(hcryp);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Get tick */
      tickstart = HAL_GetTick();
  
      while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
      }
      
      /* Set the header phase */
      if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, Timeout) != HAL_OK)
      {
        return HAL_TIMEOUT;
      }
      /* Disable the CRYP peripheral */
      __HAL_CRYP_DISABLE(hcryp);
      
      /* Select payload phase once the header phase is performed */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Set the phase */
      hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
    }
    
    /* Write Plain Data and Get Cypher Data */
    if(CRYPEx_GCMCCM_ProcessData(hcryp, pCypherData, Size, pPlainData, Timeout) != HAL_OK)
    {
      return HAL_TIMEOUT;
    }
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hcryp);
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Computes the authentication TAG.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  Size: Total length of the plain/cyphertext buffer
    * @param  AuthTag: Pointer to the authentication buffer
    * @param  Timeout: Timeout duration
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Finish(CRYP_HandleTypeDef *hcryp, uint32_t Size, uint8_t *AuthTag, uint32_t Timeout)
  {
    uint32_t tickstart = 0;   
    uint64_t headerlength = hcryp->Init.HeaderSize * 8; /* Header length in bits */
    uint64_t inputlength = Size * 8; /* input length in bits */
    uint32_t tagaddr = (uint32_t)AuthTag;
    
    /* Process Locked */
    __HAL_LOCK(hcryp);
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_BUSY;
    
    /* Check if initialization phase has already been performed */
    if(hcryp->Phase == HAL_CRYP_PHASE_PROCESS)
    {
      /* Change the CRYP phase */
      hcryp->Phase = HAL_CRYP_PHASE_FINAL;
      
      /* Disable CRYP to start the final phase */
      __HAL_CRYP_DISABLE(hcryp);
      
      /* Select final phase */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_FINAL);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Write the number of bits in header (64 bits) followed by the number of bits
         in the payload */
      if(hcryp->Init.DataType == CRYP_DATATYPE_1B)
      {
        hcryp->Instance->DR = __RBIT(headerlength >> 32);
        hcryp->Instance->DR = __RBIT(headerlength);
        hcryp->Instance->DR = __RBIT(inputlength >> 32);
        hcryp->Instance->DR = __RBIT(inputlength);
      }
      else if(hcryp->Init.DataType == CRYP_DATATYPE_8B)
      {
        hcryp->Instance->DR = __REV(headerlength >> 32);
        hcryp->Instance->DR = __REV(headerlength);
        hcryp->Instance->DR = __REV(inputlength >> 32);
        hcryp->Instance->DR = __REV(inputlength);
      }
      else if(hcryp->Init.DataType == CRYP_DATATYPE_16B)
      {
        hcryp->Instance->DR = __ROR((uint32_t)(headerlength >> 32), 16);
        hcryp->Instance->DR = __ROR((uint32_t)headerlength, 16);
        hcryp->Instance->DR = __ROR((uint32_t)(inputlength >> 32), 16);
        hcryp->Instance->DR = __ROR((uint32_t)inputlength, 16);
      }
      else if(hcryp->Init.DataType == CRYP_DATATYPE_32B)
      {
        hcryp->Instance->DR = (uint32_t)(headerlength >> 32);
        hcryp->Instance->DR = (uint32_t)(headerlength);
        hcryp->Instance->DR = (uint32_t)(inputlength >> 32);
        hcryp->Instance->DR = (uint32_t)(inputlength);
      }
      /* Get tick */
      tickstart = HAL_GetTick();
  
      while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE))
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
          
            return HAL_TIMEOUT;
          }
        }
      }
      
      /* Read the Auth TAG in the IN FIFO */
      *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT;
      tagaddr+=4;
      *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT;
      tagaddr+=4;
      *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT;
      tagaddr+=4;
      *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT;
    }
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hcryp);
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Computes the authentication TAG for AES CCM mode.
    * @note   This API is called after HAL_AES_CCM_Encrypt()/HAL_AES_CCM_Decrypt()   
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  AuthTag: Pointer to the authentication buffer
    * @param  Timeout: Timeout duration
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Finish(CRYP_HandleTypeDef *hcryp, uint8_t *AuthTag, uint32_t Timeout)
  {
    uint32_t tickstart = 0;   
    uint32_t tagaddr = (uint32_t)AuthTag;
    uint32_t ctraddr = (uint32_t)hcryp->Init.pScratch;
    uint32_t temptag[4] = {0}; /* Temporary TAG (MAC) */
    uint32_t loopcounter;
    
    /* Process Locked */
    __HAL_LOCK(hcryp);
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_BUSY;
    
    /* Check if initialization phase has already been performed */
    if(hcryp->Phase == HAL_CRYP_PHASE_PROCESS)
    {
      /* Change the CRYP phase */
      hcryp->Phase = HAL_CRYP_PHASE_FINAL;
      
      /* Disable CRYP to start the final phase */
      __HAL_CRYP_DISABLE(hcryp);
      
      /* Select final phase */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_FINAL);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Write the counter block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)ctraddr;
      ctraddr+=4;
      hcryp->Instance->DR = *(uint32_t*)ctraddr;
      ctraddr+=4;
      hcryp->Instance->DR = *(uint32_t*)ctraddr;
      ctraddr+=4;
      hcryp->Instance->DR = *(uint32_t*)ctraddr;
      
      /* Get tick */
      tickstart = HAL_GetTick();
  
      while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE))
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
      }
      
      /* Read the Auth TAG in the IN FIFO */
      temptag[0] = hcryp->Instance->DOUT;
      temptag[1] = hcryp->Instance->DOUT;
      temptag[2] = hcryp->Instance->DOUT;
      temptag[3] = hcryp->Instance->DOUT;
    }
    
    /* Copy temporary authentication TAG in user TAG buffer */
    for(loopcounter = 0; loopcounter < hcryp->Init.TagSize ; loopcounter++)
    {
      /* Set the authentication TAG buffer */
      *((uint8_t*)tagaddr+loopcounter) = *((uint8_t*)temptag+loopcounter);
    }
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hcryp);
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES CCM decryption mode then
    *         decrypted pCypherData. The cypher data are available in pPlainData.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pPlainData: Pointer to the plaintext buffer
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @param  Timeout: Timeout duration
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Decrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData, uint32_t Timeout)
  {
    uint32_t tickstart = 0;   
    uint32_t headersize = hcryp->Init.HeaderSize;
    uint32_t headeraddr = (uint32_t)hcryp->Init.Header;
    uint32_t loopcounter = 0;
    uint32_t bufferidx = 0;
    uint8_t blockb0[16] = {0};/* Block B0 */
    uint8_t ctr[16] = {0}; /* Counter */
    uint32_t b0addr = (uint32_t)blockb0;
    
    /* Process Locked */
    __HAL_LOCK(hcryp);
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_BUSY;
    
    /* Check if initialization phase has already been performed */
    if(hcryp->Phase == HAL_CRYP_PHASE_READY)
    {
      /************************ Formatting the header block *********************/
      if(headersize != 0)
      {
        /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */
        if(headersize < 65280)
        {
          hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF);
          hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF);
          headersize += 2;
        }
        else
        {
          /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */
          hcryp->Init.pScratch[bufferidx++] = 0xFF;
          hcryp->Init.pScratch[bufferidx++] = 0xFE;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00;
          hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff;
          headersize += 6;
        }
        /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */
        for(loopcounter = 0; loopcounter < headersize; loopcounter++)
        {
          hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter];
        }
        /* Check if the header size is modulo 16 */
        if ((headersize % 16) != 0)
        {
          /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */
          for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++)
          {
            hcryp->Init.pScratch[loopcounter] = 0;
          }
          /* Set the header size to modulo 16 */
          headersize = ((headersize/16) + 1) * 16;
        }
        /* Set the pointer headeraddr to hcryp->Init.pScratch */
        headeraddr = (uint32_t)hcryp->Init.pScratch;
      }
      /*********************** Formatting the block B0 **************************/
      if(headersize != 0)
      {
        blockb0[0] = 0x40;
      }
      /* Flags byte */
      /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */
      blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3);
      blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07);
      
      for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++)
      {
        blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter];
      }
      for ( ; loopcounter < 13; loopcounter++)
      {
        blockb0[loopcounter+1] = 0;
      }
      
      blockb0[14] = (Size >> 8);
      blockb0[15] = (Size & 0xFF);
      
      /************************* Formatting the initial counter *****************/
      /* Byte 0:
         Bits 7 and 6 are reserved and shall be set to 0
         Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter 
         blocks are distinct from B0
         Bits 0, 1, and 2 contain the same encoding of q as in B0
      */
      ctr[0] = blockb0[0] & 0x07;
      /* byte 1 to NonceSize is the IV (Nonce) */
      for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++)
      {
        ctr[loopcounter] = blockb0[loopcounter];
      }
      /* Set the LSB to 1 */
      ctr[15] |= 0x01;
      
      /* Set the key */
      CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
      
      /* Set the CRYP peripheral in AES CCM mode */
      __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_DECRYPT);
      
      /* Set the Initialization Vector */
      CRYPEx_GCMCCM_SetInitVector(hcryp, ctr);
      
      /* Select init phase */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT);
      
      b0addr = (uint32_t)blockb0;
      /* Write the blockb0 block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      b0addr+=4;
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      b0addr+=4;
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      b0addr+=4;
      hcryp->Instance->DR = *(uint32_t*)(b0addr);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Get tick */
      tickstart = HAL_GetTick();
   
      while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
      {
        /* Check for the Timeout */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
          
            return HAL_TIMEOUT;
          }
        }
      }
      /***************************** Header phase *******************************/
      if(headersize != 0)
      {
        /* Select header phase */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER);
        
        /* Enable Crypto processor */
        __HAL_CRYP_ENABLE(hcryp);
        
        for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16)
        {
          /* Get tick */
          tickstart = HAL_GetTick();
  
          while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM))
          {
            /* Check for the Timeout */
            if(Timeout != HAL_MAX_DELAY)
            {
              if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
              {
                /* Change state */
                hcryp->State = HAL_CRYP_STATE_TIMEOUT;
                
                /* Process Unlocked */
                __HAL_UNLOCK(hcryp);
                
                return HAL_TIMEOUT;
              }
            }
          }
          /* Write the header block in the IN FIFO */
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
          hcryp->Instance->DR = *(uint32_t*)(headeraddr);
          headeraddr+=4;
        }
        
        /* Get tick */
        tickstart = HAL_GetTick();
  
        while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY)
        {
        /* Check for the Timeout */
          if(Timeout != HAL_MAX_DELAY)
          {
            if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
            {
              /* Change state */
              hcryp->State = HAL_CRYP_STATE_TIMEOUT;
              
              /* Process Unlocked */
              __HAL_UNLOCK(hcryp);
              
              return HAL_TIMEOUT;
            }
          }
        }
      }
      /* Save formatted counter into the scratch buffer pScratch */
      for(loopcounter = 0; (loopcounter < 16); loopcounter++)
      {
        hcryp->Init.pScratch[loopcounter] = ctr[loopcounter];
      }
      /* Reset bit 0 */
      hcryp->Init.pScratch[15] &= 0xfe;
      /* Select payload phase once the header phase is performed */
      __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
      
      /* Flush FIFO */
      __HAL_CRYP_FIFO_FLUSH(hcryp);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Set the phase */
      hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
    }
    
    /* Write Plain Data and Get Cypher Data */
    if(CRYPEx_GCMCCM_ProcessData(hcryp, pCypherData, Size, pPlainData, Timeout) != HAL_OK)
    {
      return HAL_TIMEOUT;
    }
    
    /* Change the CRYP peripheral state */
    hcryp->State = HAL_CRYP_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hcryp);
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES GCM encryption mode using IT.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pPlainData: Pointer to the plaintext buffer
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Encrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
  {
    uint32_t tickstart = 0;   
    uint32_t inputaddr;
    uint32_t outputaddr;
    
    if(hcryp->State == HAL_CRYP_STATE_READY)
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      /* Get the buffer addresses and sizes */    
      hcryp->CrypInCount = Size;
      hcryp->pCrypInBuffPtr = pPlainData;
      hcryp->pCrypOutBuffPtr = pCypherData;
      hcryp->CrypOutCount = Size;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES GCM mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Enable CRYP to start the init phase */
        __HAL_CRYP_ENABLE(hcryp);
        
       /* Get tick */
       tickstart = HAL_GetTick();
  
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
            
          }
        }
        
        /* Set the header phase */
        if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        /* Disable the CRYP peripheral */
        __HAL_CRYP_DISABLE(hcryp);
        
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      
      if(Size != 0)
      {
        /* Enable Interrupts */
        __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI);
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
      }
      else
      {
        /* Process Locked */
        __HAL_UNLOCK(hcryp);
        /* Change the CRYP state and phase */
        hcryp->State = HAL_CRYP_STATE_READY;
      }
      /* Return function status */
      return HAL_OK;
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI))
    {
      inputaddr = (uint32_t)hcryp->pCrypInBuffPtr;
      /* Write the Input block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR  = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      hcryp->pCrypInBuffPtr += 16;
      hcryp->CrypInCount -= 16;
      if(hcryp->CrypInCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI);
        /* Call the Input data transfer complete callback */
        HAL_CRYP_InCpltCallback(hcryp);
      }
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI))
    {
      outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr;
      /* Read the Output block from the Output FIFO */
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      hcryp->pCrypOutBuffPtr += 16;
      hcryp->CrypOutCount -= 16;
      if(hcryp->CrypOutCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI);
        /* Process Unlocked */
        __HAL_UNLOCK(hcryp);
        /* Change the CRYP peripheral state */
        hcryp->State = HAL_CRYP_STATE_READY;
        /* Call Input transfer complete callback */
        HAL_CRYP_OutCpltCallback(hcryp);
      }
    }
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES CCM encryption mode using interrupt.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pPlainData: Pointer to the plaintext buffer
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Encrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
  {
    uint32_t tickstart = 0;   
    uint32_t inputaddr;
    uint32_t outputaddr;
    
    uint32_t headersize = hcryp->Init.HeaderSize;
    uint32_t headeraddr = (uint32_t)hcryp->Init.Header;
    uint32_t loopcounter = 0;
    uint32_t bufferidx = 0;
    uint8_t blockb0[16] = {0};/* Block B0 */
    uint8_t ctr[16] = {0}; /* Counter */
    uint32_t b0addr = (uint32_t)blockb0;
    
    if(hcryp->State == HAL_CRYP_STATE_READY)
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      hcryp->CrypInCount = Size;
      hcryp->pCrypInBuffPtr = pPlainData;
      hcryp->pCrypOutBuffPtr = pCypherData;
      hcryp->CrypOutCount = Size;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {    
        /************************ Formatting the header block *******************/
        if(headersize != 0)
        {
          /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */
          if(headersize < 65280)
          {
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF);
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF);
            headersize += 2;
          }
          else
          {
            /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */
            hcryp->Init.pScratch[bufferidx++] = 0xFF;
            hcryp->Init.pScratch[bufferidx++] = 0xFE;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff;
            headersize += 6;
          }
          /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */
          for(loopcounter = 0; loopcounter < headersize; loopcounter++)
          {
            hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter];
          }
          /* Check if the header size is modulo 16 */
          if ((headersize % 16) != 0)
          {
            /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */
            for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++)
            {
              hcryp->Init.pScratch[loopcounter] = 0;
            }
            /* Set the header size to modulo 16 */
            headersize = ((headersize/16) + 1) * 16;
          }
          /* Set the pointer headeraddr to hcryp->Init.pScratch */
          headeraddr = (uint32_t)hcryp->Init.pScratch;
        }
        /*********************** Formatting the block B0 ************************/
        if(headersize != 0)
        {
          blockb0[0] = 0x40;
        }
        /* Flags byte */
        /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3);
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07);
        
        for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++)
        {
          blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter];
        }
        for ( ; loopcounter < 13; loopcounter++)
        {
          blockb0[loopcounter+1] = 0;
        }
        
        blockb0[14] = (Size >> 8);
        blockb0[15] = (Size & 0xFF);
        
        /************************* Formatting the initial counter ***************/
        /* Byte 0:
           Bits 7 and 6 are reserved and shall be set to 0
           Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter 
           blocks are distinct from B0
           Bits 0, 1, and 2 contain the same encoding of q as in B0
        */
        ctr[0] = blockb0[0] & 0x07;
        /* byte 1 to NonceSize is the IV (Nonce) */
        for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++)
        {
          ctr[loopcounter] = blockb0[loopcounter];
        }
        /* Set the LSB to 1 */
        ctr[15] |= 0x01;
        
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES CCM mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, ctr);
        
        /* Select init phase */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT);
        
        b0addr = (uint32_t)blockb0;
        /* Write the blockb0 block in the IN FIFO */
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
        
       /* Get tick */
       tickstart = HAL_GetTick();
  
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
        /***************************** Header phase *****************************/
        if(headersize != 0)
        {
          /* Select header phase */
          __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER);
          
          /* Enable Crypto processor */
          __HAL_CRYP_ENABLE(hcryp);
          
          for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16)
          {
           /* Get tick */
           tickstart = HAL_GetTick();
  
            while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM))
            {
              /* Check for the Timeout */
              if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
              {
                /* Change state */
                hcryp->State = HAL_CRYP_STATE_TIMEOUT;
                
                /* Process Unlocked */
                __HAL_UNLOCK(hcryp);
                
                return HAL_TIMEOUT;
              }
            }
            /* Write the header block in the IN FIFO */
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
          }
  
          /* Get tick */
          tickstart = HAL_GetTick();
  
          while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY)
          {
            /* Check for the Timeout */
            if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
            {
              /* Change state */
              hcryp->State = HAL_CRYP_STATE_TIMEOUT;
              
              /* Process Unlocked */
              __HAL_UNLOCK(hcryp);
              
              return HAL_TIMEOUT;
            }
          }
        }
        /* Save formatted counter into the scratch buffer pScratch */
        for(loopcounter = 0; (loopcounter < 16); loopcounter++)
        {
          hcryp->Init.pScratch[loopcounter] = ctr[loopcounter];
        }
        /* Reset bit 0 */
        hcryp->Init.pScratch[15] &= 0xfe;
        
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      
      if(Size != 0)
      {
        /* Enable Interrupts */
        __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI);
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
      }
      else
      {
        /* Change the CRYP state and phase */
        hcryp->State = HAL_CRYP_STATE_READY;
      }
      
      /* Return function status */
      return HAL_OK;
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI))
    {
      inputaddr = (uint32_t)hcryp->pCrypInBuffPtr;
      /* Write the Input block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR  = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      hcryp->pCrypInBuffPtr += 16;
      hcryp->CrypInCount -= 16;
      if(hcryp->CrypInCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI);
        /* Call Input transfer complete callback */
        HAL_CRYP_InCpltCallback(hcryp);
      }
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI))
    {
      outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr;
      /* Read the Output block from the Output FIFO */
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      hcryp->pCrypOutBuffPtr += 16;
      hcryp->CrypOutCount -= 16;
      if(hcryp->CrypOutCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI);
        /* Process Unlocked */
        __HAL_UNLOCK(hcryp);
        /* Change the CRYP peripheral state */
        hcryp->State = HAL_CRYP_STATE_READY;
        /* Call Input transfer complete callback */
        HAL_CRYP_OutCpltCallback(hcryp);
      }
    }
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES GCM decryption mode using IT.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @param  Size: Length of the cyphertext buffer, must be a multiple of 16
    * @param  pPlainData: Pointer to the plaintext buffer
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Decrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
  {
    uint32_t tickstart = 0;   
    uint32_t inputaddr;
    uint32_t outputaddr;
    
    if(hcryp->State == HAL_CRYP_STATE_READY)
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      /* Get the buffer addresses and sizes */    
      hcryp->CrypInCount = Size;
      hcryp->pCrypInBuffPtr = pCypherData;
      hcryp->pCrypOutBuffPtr = pPlainData;
      hcryp->CrypOutCount = Size;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES GCM decryption mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_DECRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Enable CRYP to start the init phase */
        __HAL_CRYP_ENABLE(hcryp);
  
          /* Get tick */
          tickstart = HAL_GetTick();
  
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
        
        /* Set the header phase */
        if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        /* Disable the CRYP peripheral */
        __HAL_CRYP_DISABLE(hcryp);
        
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      
      if(Size != 0)
      {
        /* Enable Interrupts */
        __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI);
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
      }
      else
      {
        /* Process Locked */
        __HAL_UNLOCK(hcryp);
        /* Change the CRYP state and phase */
        hcryp->State = HAL_CRYP_STATE_READY;
      }
      
      /* Return function status */
      return HAL_OK;
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI))
    {
      inputaddr = (uint32_t)hcryp->pCrypInBuffPtr;
      /* Write the Input block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR  = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      hcryp->pCrypInBuffPtr += 16;
      hcryp->CrypInCount -= 16;
      if(hcryp->CrypInCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI);
        /* Call the Input data transfer complete callback */
        HAL_CRYP_InCpltCallback(hcryp);
      }
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI))
    {
      outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr;
      /* Read the Output block from the Output FIFO */
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      hcryp->pCrypOutBuffPtr += 16;
      hcryp->CrypOutCount -= 16;
      if(hcryp->CrypOutCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI);
        /* Process Unlocked */
        __HAL_UNLOCK(hcryp);
        /* Change the CRYP peripheral state */
        hcryp->State = HAL_CRYP_STATE_READY;
        /* Call Input transfer complete callback */
        HAL_CRYP_OutCpltCallback(hcryp);
      }
    }
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES CCM decryption mode using interrupt
    *         then decrypted pCypherData. The cypher data are available in pPlainData.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pCypherData: Pointer to the cyphertext buffer 
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pPlainData: Pointer to the plaintext buffer  
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Decrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
  {
    uint32_t inputaddr;
    uint32_t outputaddr;
    uint32_t tickstart = 0;
    uint32_t headersize = hcryp->Init.HeaderSize;
    uint32_t headeraddr = (uint32_t)hcryp->Init.Header;
    uint32_t loopcounter = 0;
    uint32_t bufferidx = 0;
    uint8_t blockb0[16] = {0};/* Block B0 */
    uint8_t ctr[16] = {0}; /* Counter */
    uint32_t b0addr = (uint32_t)blockb0;
    
    if(hcryp->State == HAL_CRYP_STATE_READY)
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      hcryp->CrypInCount = Size;
      hcryp->pCrypInBuffPtr = pCypherData;
      hcryp->pCrypOutBuffPtr = pPlainData;
      hcryp->CrypOutCount = Size;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {
        /************************ Formatting the header block *******************/
        if(headersize != 0)
        {
          /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */
          if(headersize < 65280)
          {
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF);
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF);
            headersize += 2;
          }
          else
          {
            /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */
            hcryp->Init.pScratch[bufferidx++] = 0xFF;
            hcryp->Init.pScratch[bufferidx++] = 0xFE;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff;
            headersize += 6;
          }
          /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */
          for(loopcounter = 0; loopcounter < headersize; loopcounter++)
          {
            hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter];
          }
          /* Check if the header size is modulo 16 */
          if ((headersize % 16) != 0)
          {
            /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */
            for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++)
            {
              hcryp->Init.pScratch[loopcounter] = 0;
            }
            /* Set the header size to modulo 16 */
            headersize = ((headersize/16) + 1) * 16;
          }
          /* Set the pointer headeraddr to hcryp->Init.pScratch */
          headeraddr = (uint32_t)hcryp->Init.pScratch;
        }
        /*********************** Formatting the block B0 ************************/
        if(headersize != 0)
        {
          blockb0[0] = 0x40;
        }
        /* Flags byte */
        /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3);
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07);
        
        for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++)
        {
          blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter];
        }
        for ( ; loopcounter < 13; loopcounter++)
        {
          blockb0[loopcounter+1] = 0;
        }
        
        blockb0[14] = (Size >> 8);
        blockb0[15] = (Size & 0xFF);
        
        /************************* Formatting the initial counter ***************/
        /* Byte 0:
           Bits 7 and 6 are reserved and shall be set to 0
           Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter 
           blocks are distinct from B0
           Bits 0, 1, and 2 contain the same encoding of q as in B0
        */
        ctr[0] = blockb0[0] & 0x07;
        /* byte 1 to NonceSize is the IV (Nonce) */
        for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++)
        {
          ctr[loopcounter] = blockb0[loopcounter];
        }
        /* Set the LSB to 1 */
        ctr[15] |= 0x01;
        
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES CCM mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_DECRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, ctr);
        
        /* Select init phase */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT);
        
        b0addr = (uint32_t)blockb0;
        /* Write the blockb0 block in the IN FIFO */
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
  
        /* Get tick */
        tickstart = HAL_GetTick();
  
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
        /***************************** Header phase *****************************/
        if(headersize != 0)
        {
          /* Select header phase */
          __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER);
          
          /* Enable Crypto processor */
          __HAL_CRYP_ENABLE(hcryp);
          
          for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16)
          {
           /* Get tick */
           tickstart = HAL_GetTick();
  
            while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM))
            {
              /* Check for the Timeout */
              if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
              {
                /* Change state */
                hcryp->State = HAL_CRYP_STATE_TIMEOUT;
                
                /* Process Unlocked */
                __HAL_UNLOCK(hcryp);
                
                return HAL_TIMEOUT;
              }
            }
            /* Write the header block in the IN FIFO */
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
          }
  
          /* Get tick */
          tickstart = HAL_GetTick();
  
          while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY)
          {
            /* Check for the Timeout */
            if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
            {
              /* Change state */
              hcryp->State = HAL_CRYP_STATE_TIMEOUT;
              
              /* Process Unlocked */
              __HAL_UNLOCK(hcryp);
              
              return HAL_TIMEOUT;
            }
          }
        }
        /* Save formatted counter into the scratch buffer pScratch */
        for(loopcounter = 0; (loopcounter < 16); loopcounter++)
        {
          hcryp->Init.pScratch[loopcounter] = ctr[loopcounter];
        }
        /* Reset bit 0 */
        hcryp->Init.pScratch[15] &= 0xfe;
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      
      /* Enable Interrupts */
      __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI);
      
      /* Enable the CRYP peripheral */
      __HAL_CRYP_ENABLE(hcryp);
      
      /* Return function status */
      return HAL_OK;
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI))
    {
      inputaddr = (uint32_t)hcryp->pCrypInBuffPtr;
      /* Write the Input block in the IN FIFO */
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR  = *(uint32_t*)(inputaddr);
      inputaddr+=4;
      hcryp->Instance->DR = *(uint32_t*)(inputaddr);
      hcryp->pCrypInBuffPtr += 16;
      hcryp->CrypInCount -= 16;
      if(hcryp->CrypInCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI);
        /* Call the Input data transfer complete callback */
        HAL_CRYP_InCpltCallback(hcryp);
      }
    }
    else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI))
    {
      outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr;
      /* Read the Output block from the Output FIFO */
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      outputaddr+=4;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT;
      hcryp->pCrypOutBuffPtr += 16;
      hcryp->CrypOutCount -= 16;
      if(hcryp->CrypOutCount == 0)
      {
        __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI);
        /* Process Unlocked */
        __HAL_UNLOCK(hcryp);
        /* Change the CRYP peripheral state */
        hcryp->State = HAL_CRYP_STATE_READY;
        /* Call Input transfer complete callback */
        HAL_CRYP_OutCpltCallback(hcryp);
      }
    }
    
    /* Return function status */
    return HAL_OK;
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES GCM encryption mode using DMA.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pPlainData: Pointer to the plaintext buffer
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Encrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
  {
    uint32_t tickstart = 0;
    uint32_t inputaddr;
    uint32_t outputaddr;
    
    if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS))
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      inputaddr  = (uint32_t)pPlainData;
      outputaddr = (uint32_t)pCypherData;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES GCM mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Enable CRYP to start the init phase */
        __HAL_CRYP_ENABLE(hcryp);
        
        /* Get tick */
        tickstart = HAL_GetTick();
  
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Set the header phase */
        if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        /* Disable the CRYP peripheral */
        __HAL_CRYP_DISABLE(hcryp);
        
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      
      /* Set the input and output addresses and start DMA transfer */ 
      CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr);
      
      /* Unlock process */
      __HAL_UNLOCK(hcryp);
      
      /* Return function status */
      return HAL_OK;
    }
    else
    {
      return HAL_ERROR;   
    }
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES CCM encryption mode using interrupt.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pPlainData: Pointer to the plaintext buffer
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pCypherData: Pointer to the cyphertext buffer
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Encrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
  {
    uint32_t tickstart = 0;   
    uint32_t inputaddr;
    uint32_t outputaddr;
    uint32_t headersize;
    uint32_t headeraddr;
    uint32_t loopcounter = 0;
    uint32_t bufferidx = 0;
    uint8_t blockb0[16] = {0};/* Block B0 */
    uint8_t ctr[16] = {0}; /* Counter */
    uint32_t b0addr = (uint32_t)blockb0;
    
    if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS))
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      inputaddr  = (uint32_t)pPlainData;
      outputaddr = (uint32_t)pCypherData;
      
      headersize = hcryp->Init.HeaderSize;
      headeraddr = (uint32_t)hcryp->Init.Header;
      
      hcryp->CrypInCount = Size;
      hcryp->pCrypInBuffPtr = pPlainData;
      hcryp->pCrypOutBuffPtr = pCypherData;
      hcryp->CrypOutCount = Size;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {
        /************************ Formatting the header block *******************/
        if(headersize != 0)
        {
          /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */
          if(headersize < 65280)
          {
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF);
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF);
            headersize += 2;
          }
          else
          {
            /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */
            hcryp->Init.pScratch[bufferidx++] = 0xFF;
            hcryp->Init.pScratch[bufferidx++] = 0xFE;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff;
            headersize += 6;
          }
          /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */
          for(loopcounter = 0; loopcounter < headersize; loopcounter++)
          {
            hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter];
          }
          /* Check if the header size is modulo 16 */
          if ((headersize % 16) != 0)
          {
            /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */
            for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++)
            {
              hcryp->Init.pScratch[loopcounter] = 0;
            }
            /* Set the header size to modulo 16 */
            headersize = ((headersize/16) + 1) * 16;
          }
          /* Set the pointer headeraddr to hcryp->Init.pScratch */
          headeraddr = (uint32_t)hcryp->Init.pScratch;
        }
        /*********************** Formatting the block B0 ************************/
        if(headersize != 0)
        {
          blockb0[0] = 0x40;
        }
        /* Flags byte */
        /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3);
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07);
        
        for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++)
        {
          blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter];
        }
        for ( ; loopcounter < 13; loopcounter++)
        {
          blockb0[loopcounter+1] = 0;
        }
        
        blockb0[14] = (Size >> 8);
        blockb0[15] = (Size & 0xFF);
        
        /************************* Formatting the initial counter ***************/
        /* Byte 0:
           Bits 7 and 6 are reserved and shall be set to 0
           Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter 
           blocks are distinct from B0
           Bits 0, 1, and 2 contain the same encoding of q as in B0
        */
        ctr[0] = blockb0[0] & 0x07;
        /* byte 1 to NonceSize is the IV (Nonce) */
        for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++)
        {
          ctr[loopcounter] = blockb0[loopcounter];
        }
        /* Set the LSB to 1 */
        ctr[15] |= 0x01;
        
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES CCM mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, ctr);
        
        /* Select init phase */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT);
        
        b0addr = (uint32_t)blockb0;
        /* Write the blockb0 block in the IN FIFO */
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
        
        /* Get tick */
        tickstart = HAL_GetTick();
   
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
        /***************************** Header phase *****************************/
        if(headersize != 0)
        {
          /* Select header phase */
          __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER);
          
          /* Enable Crypto processor */
          __HAL_CRYP_ENABLE(hcryp);
          
          for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16)
          {
           /* Get tick */
           tickstart = HAL_GetTick();
  
            while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM))
            {
              /* Check for the Timeout */
              if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
              {
                /* Change state */
                hcryp->State = HAL_CRYP_STATE_TIMEOUT;
                
                /* Process Unlocked */
                __HAL_UNLOCK(hcryp);
                
                return HAL_TIMEOUT;
              }
            }
            /* Write the header block in the IN FIFO */
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
          }
          
          /* Get tick */
          tickstart = HAL_GetTick();
  
          while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY)
          {
            /* Check for the Timeout */
            if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
            {
              /* Change state */
              hcryp->State = HAL_CRYP_STATE_TIMEOUT;
              
              /* Process Unlocked */
              __HAL_UNLOCK(hcryp);
              
              return HAL_TIMEOUT;
            }
          }
        }
        /* Save formatted counter into the scratch buffer pScratch */
        for(loopcounter = 0; (loopcounter < 16); loopcounter++)
        {
          hcryp->Init.pScratch[loopcounter] = ctr[loopcounter];
        }
        /* Reset bit 0 */
        hcryp->Init.pScratch[15] &= 0xfe;
        
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      
      /* Set the input and output addresses and start DMA transfer */ 
      CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr);
      
      /* Unlock process */
      __HAL_UNLOCK(hcryp);
      
      /* Return function status */
      return HAL_OK;
    }
    else
    {
      return HAL_ERROR;   
    }
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES GCM decryption mode using DMA.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pCypherData: Pointer to the cyphertext buffer.
    * @param  Size: Length of the cyphertext buffer, must be a multiple of 16
    * @param  pPlainData: Pointer to the plaintext buffer
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Decrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
  {
    uint32_t tickstart = 0;   
    uint32_t inputaddr;
    uint32_t outputaddr;
    
    if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS))
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      inputaddr  = (uint32_t)pCypherData;
      outputaddr = (uint32_t)pPlainData;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES GCM decryption mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_DECRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect);
        
        /* Enable CRYP to start the init phase */
        __HAL_CRYP_ENABLE(hcryp);
        
        /* Get tick */
        tickstart = HAL_GetTick();
  
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
          }
        }
        
        /* Set the header phase */
        if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK)
        {
          return HAL_TIMEOUT;
        }
        /* Disable the CRYP peripheral */
        __HAL_CRYP_DISABLE(hcryp);
        
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      
      /* Set the input and output addresses and start DMA transfer */ 
      CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr);
      
      /* Unlock process */
      __HAL_UNLOCK(hcryp);
      
      /* Return function status */
      return HAL_OK;
    }
    else
    {
      return HAL_ERROR;   
    }
  }
  
  /**
    * @brief  Initializes the CRYP peripheral in AES CCM decryption mode using DMA
    *         then decrypted pCypherData. The cypher data are available in pPlainData.
    * @param  hcryp: pointer to a CRYP_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @param  pCypherData: Pointer to the cyphertext buffer  
    * @param  Size: Length of the plaintext buffer, must be a multiple of 16
    * @param  pPlainData: Pointer to the plaintext buffer  
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Decrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
  {
    uint32_t tickstart = 0;   
    uint32_t inputaddr;
    uint32_t outputaddr;
    uint32_t headersize;
    uint32_t headeraddr;
    uint32_t loopcounter = 0;
    uint32_t bufferidx = 0;
    uint8_t blockb0[16] = {0};/* Block B0 */
    uint8_t ctr[16] = {0}; /* Counter */
    uint32_t b0addr = (uint32_t)blockb0;
    
    if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS))
    {
      /* Process Locked */
      __HAL_LOCK(hcryp);
      
      inputaddr  = (uint32_t)pCypherData;
      outputaddr = (uint32_t)pPlainData;
      
      headersize = hcryp->Init.HeaderSize;
      headeraddr = (uint32_t)hcryp->Init.Header;
      
      hcryp->CrypInCount = Size;
      hcryp->pCrypInBuffPtr = pCypherData;
      hcryp->pCrypOutBuffPtr = pPlainData;
      hcryp->CrypOutCount = Size;
      
      /* Change the CRYP peripheral state */
      hcryp->State = HAL_CRYP_STATE_BUSY;
      
      /* Check if initialization phase has already been performed */
      if(hcryp->Phase == HAL_CRYP_PHASE_READY)
      {
        /************************ Formatting the header block *******************/
        if(headersize != 0)
        {
          /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */
          if(headersize < 65280)
          {
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF);
            hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF);
            headersize += 2;
          }
          else
          {
            /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */
            hcryp->Init.pScratch[bufferidx++] = 0xFF;
            hcryp->Init.pScratch[bufferidx++] = 0xFE;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00;
            hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff;
            headersize += 6;
          }
          /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */
          for(loopcounter = 0; loopcounter < headersize; loopcounter++)
          {
            hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter];
          }
          /* Check if the header size is modulo 16 */
          if ((headersize % 16) != 0)
          {
            /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */
            for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++)
            {
              hcryp->Init.pScratch[loopcounter] = 0;
            }
            /* Set the header size to modulo 16 */
            headersize = ((headersize/16) + 1) * 16;
          }
          /* Set the pointer headeraddr to hcryp->Init.pScratch */
          headeraddr = (uint32_t)hcryp->Init.pScratch;
        }
        /*********************** Formatting the block B0 ************************/
        if(headersize != 0)
        {
          blockb0[0] = 0x40;
        }
        /* Flags byte */
        /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3);
        blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07);
        
        for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++)
        {
          blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter];
        }
        for ( ; loopcounter < 13; loopcounter++)
        {
          blockb0[loopcounter+1] = 0;
        }
        
        blockb0[14] = (Size >> 8);
        blockb0[15] = (Size & 0xFF);
        
        /************************* Formatting the initial counter ***************/
        /* Byte 0:
           Bits 7 and 6 are reserved and shall be set to 0
           Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter 
           blocks are distinct from B0
           Bits 0, 1, and 2 contain the same encoding of q as in B0
        */
        ctr[0] = blockb0[0] & 0x07;
        /* byte 1 to NonceSize is the IV (Nonce) */
        for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++)
        {
          ctr[loopcounter] = blockb0[loopcounter];
        }
        /* Set the LSB to 1 */
        ctr[15] |= 0x01;
        
        /* Set the key */
        CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize);
        
        /* Set the CRYP peripheral in AES CCM mode */
        __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_DECRYPT);
        
        /* Set the Initialization Vector */
        CRYPEx_GCMCCM_SetInitVector(hcryp, ctr);
        
        /* Select init phase */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT);
        
        b0addr = (uint32_t)blockb0;
        /* Write the blockb0 block in the IN FIFO */
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        b0addr+=4;
        hcryp->Instance->DR = *(uint32_t*)(b0addr);
        
        /* Enable the CRYP peripheral */
        __HAL_CRYP_ENABLE(hcryp);
        
        /* Get tick */
        tickstart = HAL_GetTick();
   
        while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN)
        {
          /* Check for the Timeout */
          
          if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
          {
            /* Change state */
            hcryp->State = HAL_CRYP_STATE_TIMEOUT;
            
            /* Process Unlocked */
            __HAL_UNLOCK(hcryp);
            
            return HAL_TIMEOUT;
            
          }
        }
        /***************************** Header phase *****************************/
        if(headersize != 0)
        {
          /* Select header phase */
          __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER);
          
          /* Enable Crypto processor */
          __HAL_CRYP_ENABLE(hcryp);
          
          for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16)
          {
           /* Get tick */
           tickstart = HAL_GetTick();
   
            while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM))
            {
              /* Check for the Timeout */
              if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
              {
                /* Change state */
                hcryp->State = HAL_CRYP_STATE_TIMEOUT;
                
                /* Process Unlocked */
                __HAL_UNLOCK(hcryp);
                
                return HAL_TIMEOUT;
              }
            }
            /* Write the header block in the IN FIFO */
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
            hcryp->Instance->DR = *(uint32_t*)(headeraddr);
            headeraddr+=4;
          }
          
          /* Get tick */
          tickstart = HAL_GetTick();
  
          while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY)
          {
            /* Check for the Timeout */
            if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE)
            {
              /* Change state */
              hcryp->State = HAL_CRYP_STATE_TIMEOUT;
              
              /* Process Unlocked */
              __HAL_UNLOCK(hcryp);
              
              return HAL_TIMEOUT;
            }
          }
        }
        /* Save formatted counter into the scratch buffer pScratch */
        for(loopcounter = 0; (loopcounter < 16); loopcounter++)
        {
          hcryp->Init.pScratch[loopcounter] = ctr[loopcounter];
        }
        /* Reset bit 0 */
        hcryp->Init.pScratch[15] &= 0xfe;
        /* Select payload phase once the header phase is performed */
        __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD);
        
        /* Flush FIFO */
        __HAL_CRYP_FIFO_FLUSH(hcryp);
        
        /* Set the phase */
        hcryp->Phase = HAL_CRYP_PHASE_PROCESS;
      }
      /* Set the input and output addresses and start DMA transfer */ 
      CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr);
      
      /* Unlock process */
      __HAL_UNLOCK(hcryp);
      
      /* Return function status */
      return HAL_OK;
    }
    else
    {
      return HAL_ERROR;   
    }
  }
  
  /**
    * @}
    */
    
  /** @defgroup CRYPEx_Exported_Functions_Group2 CRYPEx IRQ handler management  
   *  @brief   CRYPEx IRQ handler.
   *
  @verbatim   
    ==============================================================================
                  ##### CRYPEx IRQ handler management #####
    ==============================================================================  
  [..]  This section provides CRYPEx IRQ handler function.
  
  @endverbatim
    * @{
    */
  
  /**
    * @brief  This function handles CRYPEx interrupt request.
    * @param  hcryp: pointer to a CRYPEx_HandleTypeDef structure that contains
    *         the configuration information for CRYP module
    * @retval None
    */
  
  void HAL_CRYPEx_GCMCCM_IRQHandler(CRYP_HandleTypeDef *hcryp)
  {
    switch(CRYP->CR & CRYP_CR_ALGOMODE_DIRECTION)
    {    
    case CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT:
      HAL_CRYPEx_AESGCM_Encrypt_IT(hcryp, NULL, 0, NULL);
      break;
      
    case CRYP_CR_ALGOMODE_AES_GCM_DECRYPT:
      HAL_CRYPEx_AESGCM_Decrypt_IT(hcryp, NULL, 0, NULL);
      break;
      
    case CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT:
      HAL_CRYPEx_AESCCM_Encrypt_IT(hcryp, NULL, 0, NULL);
      break;
      
    case CRYP_CR_ALGOMODE_AES_CCM_DECRYPT:
      HAL_CRYPEx_AESCCM_Decrypt_IT(hcryp, NULL, 0, NULL);
      break;
      
    default:
      break;
    }
  }
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  #endif /* STM32F437xx || STM32F439xx || STM32F479xx */
  
  #endif /* HAL_CRYP_MODULE_ENABLED */
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  