stm32l4xx_hal_cryp.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal.h"

#ifdef HAL_CRYP_MODULE_ENABLED

#if defined(AES)

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private functions --------------------------------------------------------*/

static HAL_StatusTypeDef CRYP_SetInitVector(CRYP_HandleTypeDef *hcryp);
static HAL_StatusTypeDef CRYP_SetKey(CRYP_HandleTypeDef *hcryp);
static HAL_StatusTypeDef CRYP_AES_IT(CRYP_HandleTypeDef *hcryp);

/* Exported functions ---------------------------------------------------------*/

HAL_StatusTypeDef HAL_CRYP_Init(CRYP_HandleTypeDef *hcryp)
{
  /* Check the CRYP handle allocation */
  if(hcryp == NULL)
  {
    return HAL_ERROR;
  }

  /* Check the instance */
  assert_param(IS_AES_ALL_INSTANCE(hcryp->Instance));

  /* Check the parameters */
  assert_param(IS_CRYP_KEYSIZE(hcryp->Init.KeySize));
  assert_param(IS_CRYP_DATATYPE(hcryp->Init.DataType));
  assert_param(IS_CRYP_ALGOMODE(hcryp->Init.OperatingMode));
  /* ChainingMode parameter is irrelevant when mode is set to Key derivation */
  if (hcryp->Init.OperatingMode != CRYP_ALGOMODE_KEYDERIVATION)
  {
    assert_param(IS_CRYP_CHAINMODE(hcryp->Init.ChainingMode));
  }
  assert_param(IS_CRYP_WRITE(hcryp->Init.KeyWriteFlag));

  /*========================================================*/
  /* Check the proper operating/chaining modes combinations */
  /*========================================================*/
  /* Check the proper chaining when the operating mode is key derivation and decryption */
#if defined(AES_CR_NPBLB)
  if ((hcryp->Init.OperatingMode == CRYP_ALGOMODE_KEYDERIVATION_DECRYPT) &&\
         ((hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CTR)           \
       || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_GCM_GMAC)      \
       || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CCM)))
#else
  if ((hcryp->Init.OperatingMode == CRYP_ALGOMODE_KEYDERIVATION_DECRYPT) &&\
         ((hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CTR)           \
       || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_GCM_GMAC)      \
       || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CMAC)))
#endif
  {
    return HAL_ERROR;
  }
  /* Check that key derivation is not set in CMAC mode or CCM mode when applicable */
#if defined(AES_CR_NPBLB)
  if ((hcryp->Init.OperatingMode == CRYP_ALGOMODE_KEYDERIVATION)
   && (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CCM))
#else
  if ((hcryp->Init.OperatingMode == CRYP_ALGOMODE_KEYDERIVATION)
   && (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CMAC))
#endif
  {
    return HAL_ERROR;
  }


  /*================*/
  /* Initialization */
  /*================*/
  /* Initialization start */
#if (USE_HAL_CRYP_REGISTER_CALLBACKS == 1)
  if (hcryp->State == HAL_CRYP_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hcryp->Lock = HAL_UNLOCKED;

    /* Reset Callback pointers in HAL_CRYP_STATE_RESET only */
    hcryp->InCpltCallback   =  HAL_CRYP_InCpltCallback;            /* Legacy weak (surcharged) input DMA transfer completion callback */
    hcryp->OutCpltCallback   =  HAL_CRYP_OutCpltCallback;           /* Legacy weak (surcharged) output DMA transfer completion callback */
    hcryp->CompCpltCallback =  HAL_CRYPEx_ComputationCpltCallback; /* Legacy weak (surcharged) computation completion callback */
    hcryp->ErrorCallback    =  HAL_CRYP_ErrorCallback;             /* Legacy weak (surcharged) error callback */
    if(hcryp->MspInitCallback == NULL)
    {
      hcryp->MspInitCallback = HAL_CRYP_MspInit;
    }

    /* Init the low level hardware */
    hcryp->MspInitCallback(hcryp);
  }
#else
  if(hcryp->State == HAL_CRYP_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hcryp->Lock = HAL_UNLOCKED;

    /* Init the low level hardware */
    HAL_CRYP_MspInit(hcryp);
  }
#endif /* (USE_HAL_CRYP_REGISTER_CALLBACKS) */

  /* Change the CRYP state */
  hcryp->State = HAL_CRYP_STATE_BUSY;

  /* Disable the Peripheral */
  __HAL_CRYP_DISABLE(hcryp);

  /*=============================================================*/
  /* AES initialization common to all operating modes            */
  /*=============================================================*/
  /* Set the Key size selection */
  MODIFY_REG(hcryp->Instance->CR, AES_CR_KEYSIZE, hcryp->Init.KeySize);

  /* Set the default CRYP phase when this parameter is not used.
     Phase is updated below in case of GCM/GMAC(/CMAC)(/CCM) setting. */
  hcryp->Phase = HAL_CRYP_PHASE_NOT_USED;



  /*=============================================================*/
  /* Carry on the initialization based on the AES operating mode */
  /*=============================================================*/
  /* Key derivation */
  if (hcryp->Init.OperatingMode == CRYP_ALGOMODE_KEYDERIVATION)
  {
    MODIFY_REG(hcryp->Instance->CR, AES_CR_MODE, CRYP_ALGOMODE_KEYDERIVATION);

    /* Configure the Key registers */
    if (CRYP_SetKey(hcryp) != HAL_OK)
    {
      return HAL_ERROR;
    }
  }
  else
  /* Encryption / Decryption (with or without key derivation) / authentication */
  {
#if !defined(AES_CR_NPBLB)
    /* Set data type, operating and chaining modes.
       In case of GCM or GMAC, data type is forced to 0b00 */
    if (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_GCM_GMAC)
    {
      MODIFY_REG(hcryp->Instance->CR, AES_CR_DATATYPE|AES_CR_MODE|AES_CR_CHMOD, hcryp->Init.OperatingMode|hcryp->Init.ChainingMode);
    }
    else
#endif
    {
      MODIFY_REG(hcryp->Instance->CR, AES_CR_DATATYPE|AES_CR_MODE|AES_CR_CHMOD, hcryp->Init.DataType|hcryp->Init.OperatingMode|hcryp->Init.ChainingMode);
    }


   /* Specify the encryption/decryption phase in case of Galois counter mode (GCM),
      Galois message authentication code (GMAC), cipher message authentication code (CMAC) when applicable
      or Counter with Cipher Mode (CCM) when applicable */
#if defined(AES_CR_NPBLB)
   if ((hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_GCM_GMAC)
    || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CCM))
#else
   if ((hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_GCM_GMAC)
    || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CMAC))
#endif
    {
      MODIFY_REG(hcryp->Instance->CR, AES_CR_GCMPH, hcryp->Init.GCMCMACPhase);
      hcryp->Phase = HAL_CRYP_PHASE_START;
    }


    /* Configure the Key registers if no need to bypass this step */
    if (hcryp->Init.KeyWriteFlag == CRYP_KEY_WRITE_ENABLE)
    {
      if (CRYP_SetKey(hcryp) != HAL_OK)
      {
        return HAL_ERROR;
      }
    }

    /* If applicable, configure the Initialization Vector */
    if (hcryp->Init.ChainingMode != CRYP_CHAINMODE_AES_ECB)
    {
      if (CRYP_SetInitVector(hcryp) != HAL_OK)
      {
        return HAL_ERROR;
      }
    }
  }

#if defined(AES_CR_NPBLB)
  /* Clear NPBLB field */
  CLEAR_BIT(hcryp->Instance->CR, AES_CR_NPBLB);
#endif

  /* Reset CrypInCount and CrypOutCount */
  hcryp->CrypInCount = 0;
  hcryp->CrypOutCount = 0;

  /* Reset ErrorCode field */
  hcryp->ErrorCode = HAL_CRYP_ERROR_NONE;

  /* Reset Mode suspension request */
  hcryp->SuspendRequest = HAL_CRYP_SUSPEND_NONE;

  /* Change the CRYP state */
  hcryp->State = HAL_CRYP_STATE_READY;

  /* Enable the Peripheral */
  __HAL_CRYP_ENABLE(hcryp);

  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_CRYP_DeInit(CRYP_HandleTypeDef *hcryp)
{
  /* Check the CRYP handle allocation */
  if(hcryp == NULL)
  {
    return HAL_ERROR;
  }

  /* Change the CRYP state */
  hcryp->State = HAL_CRYP_STATE_BUSY;

  /* Set the default CRYP phase */
  hcryp->Phase = HAL_CRYP_PHASE_READY;

  /* Reset CrypInCount and CrypOutCount */
  hcryp->CrypInCount = 0;
  hcryp->CrypOutCount = 0;

  /* Disable the CRYP Peripheral Clock */
  __HAL_CRYP_DISABLE(hcryp);

#if (USE_HAL_CRYP_REGISTER_CALLBACKS == 1)
    if(hcryp->MspDeInitCallback == NULL)
    {
      hcryp->MspDeInitCallback = HAL_CRYP_MspDeInit;
    }

    /* DeInit the low level hardware */
    hcryp->MspDeInitCallback(hcryp);
#else
  /* DeInit the low level hardware: CLOCK, NVIC.*/
  HAL_CRYP_MspDeInit(hcryp);
#endif /* (USE_HAL_CRYP_REGISTER_CALLBACKS) */

  /* Change the CRYP state */
  hcryp->State = HAL_CRYP_STATE_RESET;

  /* Release Lock */
  __HAL_UNLOCK(hcryp);

  /* Return function status */
  return HAL_OK;
}

__weak void HAL_CRYP_MspInit(CRYP_HandleTypeDef *hcryp)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hcryp);

  /* NOTE : This function should not be modified; when the callback is needed,
            the HAL_CRYP_MspInit can be implemented in the user file
   */
}

__weak void HAL_CRYP_MspDeInit(CRYP_HandleTypeDef *hcryp)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hcryp);

  /* NOTE : This function should not be modified; when the callback is needed,
            the HAL_CRYP_MspDeInit can be implemented in the user file
   */
}

HAL_StatusTypeDef HAL_CRYP_AESECB_Encrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData, uint32_t Timeout)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_ECB;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES(hcryp, pPlainData, Size, pCypherData, Timeout);
}


HAL_StatusTypeDef HAL_CRYP_AESCBC_Encrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData, uint32_t Timeout)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CBC;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES(hcryp, pPlainData, Size, pCypherData, Timeout);
}


HAL_StatusTypeDef HAL_CRYP_AESCTR_Encrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData, uint32_t Timeout)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CTR;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES(hcryp, pPlainData, Size, pCypherData, Timeout);
}

HAL_StatusTypeDef HAL_CRYP_AESECB_Decrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData, uint32_t Timeout)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_KEYDERIVATION_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_ECB;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES(hcryp, pCypherData, Size, pPlainData, Timeout);
}

HAL_StatusTypeDef HAL_CRYP_AESCBC_Decrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData, uint32_t Timeout)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_KEYDERIVATION_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CBC;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES(hcryp, pCypherData, Size, pPlainData, Timeout);
}

HAL_StatusTypeDef HAL_CRYP_AESCTR_Decrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData, uint32_t Timeout)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CTR;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES(hcryp, pCypherData, Size, pPlainData, Timeout);
}

HAL_StatusTypeDef HAL_CRYP_AESECB_Encrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_ECB;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_IT(hcryp, pPlainData, Size, pCypherData);
}

HAL_StatusTypeDef HAL_CRYP_AESCBC_Encrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CBC;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_IT(hcryp, pPlainData, Size, pCypherData);
}


HAL_StatusTypeDef HAL_CRYP_AESCTR_Encrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CTR;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_IT(hcryp, pPlainData, Size, pCypherData);
}

HAL_StatusTypeDef HAL_CRYP_AESECB_Decrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_KEYDERIVATION_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_ECB;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_IT(hcryp, pCypherData, Size, pPlainData);
}

HAL_StatusTypeDef HAL_CRYP_AESCBC_Decrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_KEYDERIVATION_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CBC;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_IT(hcryp, pCypherData, Size, pPlainData);
}

HAL_StatusTypeDef HAL_CRYP_AESCTR_Decrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CTR;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_IT(hcryp, pCypherData, Size, pPlainData);
}

HAL_StatusTypeDef HAL_CRYP_AESECB_Encrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_ECB;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_DMA(hcryp, pPlainData, Size, pCypherData);
}



HAL_StatusTypeDef HAL_CRYP_AESCBC_Encrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CBC;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_DMA(hcryp, pPlainData, Size, pCypherData);
}

HAL_StatusTypeDef HAL_CRYP_AESCTR_Encrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_ENCRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CTR;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_DMA(hcryp, pPlainData, Size, pCypherData);
}

HAL_StatusTypeDef HAL_CRYP_AESECB_Decrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_KEYDERIVATION_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_ECB;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_DMA(hcryp, pCypherData, Size, pPlainData);
}

HAL_StatusTypeDef HAL_CRYP_AESCBC_Decrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_KEYDERIVATION_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CBC;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_DMA(hcryp, pCypherData, Size, pPlainData);
}

HAL_StatusTypeDef HAL_CRYP_AESCTR_Decrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData)
{
  /* Re-initialize AES IP with proper parameters */
  if (HAL_CRYP_DeInit(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }
  hcryp->Init.OperatingMode = CRYP_ALGOMODE_DECRYPT;
  hcryp->Init.ChainingMode = CRYP_CHAINMODE_AES_CTR;
  hcryp->Init.KeyWriteFlag = CRYP_KEY_WRITE_ENABLE;
  if (HAL_CRYP_Init(hcryp) != HAL_OK)
  {
    return HAL_ERROR;
  }

  return HAL_CRYPEx_AES_DMA(hcryp, pCypherData, Size, pPlainData);
}


__weak void HAL_CRYP_ErrorCallback(CRYP_HandleTypeDef *hcryp)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hcryp);

  /* NOTE : This function should not be modified; when the callback is needed,
            the HAL_CRYP_ErrorCallback can be implemented in the user file
   */
}

__weak void HAL_CRYP_InCpltCallback(CRYP_HandleTypeDef *hcryp)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hcryp);

  /* NOTE : This function should not be modified; when the callback is needed,
            the HAL_CRYP_InCpltCallback can be implemented in the user file
   */
}

__weak void HAL_CRYP_OutCpltCallback(CRYP_HandleTypeDef *hcryp)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hcryp);

  /* NOTE : This function should not be modified; when the callback is needed,
            the HAL_CRYP_OutCpltCallback can be implemented in the user file
   */
}

#if (USE_HAL_CRYP_REGISTER_CALLBACKS == 1)

HAL_StatusTypeDef HAL_CRYP_RegisterCallback(CRYP_HandleTypeDef *hcryp, HAL_CRYP_CallbackIDTypeDef CallbackID, pCRYP_CallbackTypeDef pCallback)
{
  HAL_StatusTypeDef status = HAL_OK;

  if(pCallback == NULL)
  {
    /* Update the error code */
    hcryp->ErrorCode |= HAL_CRYP_ERROR_INVALID_CALLBACK;
    return HAL_ERROR;
  }
  /* Process locked */
  __HAL_LOCK(hcryp);

  if(HAL_CRYP_STATE_READY == hcryp->State)
  {
    switch (CallbackID)
    {
    case HAL_CRYP_INPUTCPLT_CB_ID :
      hcryp->InCpltCallback = pCallback;
      break;

    case HAL_CRYP_OUTPUTCPLT_CB_ID :
      hcryp->OutCpltCallback = pCallback;
      break;

    case HAL_CRYP_COMPCPLT_CB_ID :
      hcryp->CompCpltCallback = pCallback;
      break;

    case HAL_CRYP_ERROR_CB_ID :
      hcryp->ErrorCallback = pCallback;
      break;

    case HAL_CRYP_MSPINIT_CB_ID :
      hcryp->MspInitCallback = pCallback;
      break;

    case HAL_CRYP_MSPDEINIT_CB_ID :
      hcryp->MspDeInitCallback = pCallback;
      break;

    default :
     /* Update the error code */
     hcryp->ErrorCode |= HAL_CRYP_ERROR_INVALID_CALLBACK;
     /* update return status */
      status =  HAL_ERROR;
      break;
    }
  }
  else if(HAL_CRYP_STATE_RESET == hcryp->State)
  {
    switch (CallbackID)
    {
    case HAL_CRYP_MSPINIT_CB_ID :
      hcryp->MspInitCallback = pCallback;
      break;

    case HAL_CRYP_MSPDEINIT_CB_ID :
      hcryp->MspDeInitCallback = pCallback;
      break;

    default :
     /* Update the error code */
     hcryp->ErrorCode |= HAL_CRYP_ERROR_INVALID_CALLBACK;
     /* update return status */
      status =  HAL_ERROR;
      break;
    }
  }
  else
  {
    /* Update the error code */
     hcryp->ErrorCode |= HAL_CRYP_ERROR_INVALID_CALLBACK;
     /* update return status */
      status =  HAL_ERROR;
  }

  /* Release Lock */
  __HAL_UNLOCK(hcryp);
  return status;
}

HAL_StatusTypeDef HAL_CRYP_UnRegisterCallback(CRYP_HandleTypeDef *hcryp, HAL_CRYP_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;

  /* Process locked */
  __HAL_LOCK(hcryp);

  if(HAL_CRYP_STATE_READY == hcryp->State)
  {
    switch (CallbackID)
    {
    case HAL_CRYP_INPUTCPLT_CB_ID :
      hcryp->InCpltCallback = HAL_CRYP_InCpltCallback;              /* Legacy weak (surcharged) input DMA transfer completion callback */
      break;

    case HAL_CRYP_OUTPUTCPLT_CB_ID :
      hcryp->OutCpltCallback = HAL_CRYP_OutCpltCallback;            /* Legacy weak (surcharged) output DMA transfer completion callback */
      break;

    case HAL_CRYP_COMPCPLT_CB_ID :
      hcryp->CompCpltCallback = HAL_CRYPEx_ComputationCpltCallback; /* Legacy weak (surcharged) computation completion callback */
      break;

    case HAL_CRYP_ERROR_CB_ID :
      hcryp->ErrorCallback = HAL_CRYP_ErrorCallback;                /* Legacy weak (surcharged) error callback */
      break;

    case HAL_CRYP_MSPINIT_CB_ID :
      hcryp->MspInitCallback = HAL_CRYP_MspInit;                    /* Legacy weak (surcharged) Msp DeInit */
      break;

    case HAL_CRYP_MSPDEINIT_CB_ID :
      hcryp->MspDeInitCallback = HAL_CRYP_MspDeInit;                /* Legacy weak (surcharged) Msp DeInit */
      break;

    default :
     /* Update the error code */
     hcryp->ErrorCode |= HAL_CRYP_ERROR_INVALID_CALLBACK;
     /* update return status */
      status =  HAL_ERROR;
      break;
    }
  }
  else if(HAL_CRYP_STATE_RESET == hcryp->State)
  {
    switch (CallbackID)
    {
    case HAL_CRYP_MSPINIT_CB_ID :
      hcryp->MspInitCallback = HAL_CRYP_MspInit;           /* Legacy weak (surcharged) Msp Init */
      break;

    case HAL_CRYP_MSPDEINIT_CB_ID :
      hcryp->MspDeInitCallback = HAL_CRYP_MspDeInit;       /* Legacy weak (surcharged) Msp DeInit */
      break;

    default :
     /* Update the error code */
     hcryp->ErrorCode |= HAL_CRYP_ERROR_INVALID_CALLBACK;
     /* update return status */
      status =  HAL_ERROR;
      break;
    }
  }
  else
  {
     /* Update the error code */
     hcryp->ErrorCode |= HAL_CRYP_ERROR_INVALID_CALLBACK;
     /* update return status */
      status =  HAL_ERROR;
  }

  /* Release Lock */
  __HAL_UNLOCK(hcryp);
  return status;
}
#endif /* USE_HAL_CRYP_REGISTER_CALLBACKS */

void HAL_CRYP_IRQHandler(CRYP_HandleTypeDef *hcryp)
{
  /* Check if error occurred */
  if (__HAL_CRYP_GET_IT_SOURCE(hcryp, CRYP_IT_ERRIE) != RESET)
  {
    /* If Write Error occurred */
    if (__HAL_CRYP_GET_FLAG(hcryp, CRYP_IT_WRERR) != RESET)
    {
      hcryp->ErrorCode |= HAL_CRYP_WRITE_ERROR;
      hcryp->State = HAL_CRYP_STATE_ERROR;
    }
    /* If Read Error occurred */
    if (__HAL_CRYP_GET_FLAG(hcryp, CRYP_IT_RDERR) != RESET)
    {
      hcryp->ErrorCode |= HAL_CRYP_READ_ERROR;
      hcryp->State = HAL_CRYP_STATE_ERROR;
    }

    /* If an error has been reported */
    if (hcryp->State == HAL_CRYP_STATE_ERROR)
    {
      /* Disable Error and Computation Complete Interrupts */
      __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_CCFIE|CRYP_IT_ERRIE);
      /* Clear all Interrupt flags */
      __HAL_CRYP_CLEAR_FLAG(hcryp, CRYP_ERR_CLEAR|CRYP_CCF_CLEAR);

      /* Process Unlocked */
      __HAL_UNLOCK(hcryp);

#if (USE_HAL_CRYP_REGISTER_CALLBACKS == 1)
      hcryp->ErrorCallback(hcryp);
#else
      HAL_CRYP_ErrorCallback(hcryp);
#endif /* USE_HAL_CRYP_REGISTER_CALLBACKS */

      return;
    }

  }

  /* Check if computation complete interrupt is enabled
     and if the computation complete flag is raised */
  if (__HAL_CRYP_GET_FLAG(hcryp, CRYP_IT_CCF) != RESET)
  {
    if (__HAL_CRYP_GET_IT_SOURCE(hcryp, CRYP_IT_CCFIE) != RESET)
    {
#if defined(AES_CR_NPBLB)
      if ((hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_GCM_GMAC)
       || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CCM))
#else
      if ((hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_GCM_GMAC)
       || (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CMAC))
#endif
      {
       /* To ensure proper suspension requests management, CCF flag
          is reset in CRYP_AES_Auth_IT() according to the current
          phase under handling */
        if (CRYP_AES_Auth_IT(hcryp) !=  HAL_OK)
        {
#if (USE_HAL_CRYP_REGISTER_CALLBACKS == 1)
          hcryp->ErrorCallback(hcryp);
#else
          HAL_CRYP_ErrorCallback(hcryp);
#endif /* USE_HAL_CRYP_REGISTER_CALLBACKS */
        }
      }
      else
      {
        /* Clear Computation Complete Flag */
        __HAL_CRYP_CLEAR_FLAG(hcryp, CRYP_CCF_CLEAR);
        if (CRYP_AES_IT(hcryp) !=  HAL_OK)
        {
#if (USE_HAL_CRYP_REGISTER_CALLBACKS == 1)
          hcryp->ErrorCallback(hcryp);
#else
          HAL_CRYP_ErrorCallback(hcryp);
#endif /* USE_HAL_CRYP_REGISTER_CALLBACKS */
        }
      }
    }
  }
}

HAL_CRYP_STATETypeDef HAL_CRYP_GetState(CRYP_HandleTypeDef *hcryp)
{
  /* Return CRYP handle state */
  return hcryp->State;
}

uint32_t HAL_CRYP_GetError(CRYP_HandleTypeDef *hcryp)
{
  return hcryp->ErrorCode;
}

static HAL_StatusTypeDef  CRYP_SetKey(CRYP_HandleTypeDef *hcryp)
{
  uint32_t keyaddr;

  if (hcryp->Init.pKey == NULL)
  {
    return HAL_ERROR;
  }


  keyaddr = (uint32_t)(hcryp->Init.pKey);

  if (hcryp->Init.KeySize == CRYP_KEYSIZE_256B)
  {
    hcryp->Instance->KEYR7 = __REV(*(uint32_t*)(keyaddr));
    keyaddr+=4U;
    hcryp->Instance->KEYR6 = __REV(*(uint32_t*)(keyaddr));
    keyaddr+=4U;
    hcryp->Instance->KEYR5 = __REV(*(uint32_t*)(keyaddr));
    keyaddr+=4U;
    hcryp->Instance->KEYR4 = __REV(*(uint32_t*)(keyaddr));
    keyaddr+=4U;
  }

  hcryp->Instance->KEYR3 = __REV(*(uint32_t*)(keyaddr));
  keyaddr+=4U;
  hcryp->Instance->KEYR2 = __REV(*(uint32_t*)(keyaddr));
  keyaddr+=4U;
  hcryp->Instance->KEYR1 = __REV(*(uint32_t*)(keyaddr));
  keyaddr+=4U;
  hcryp->Instance->KEYR0 = __REV(*(uint32_t*)(keyaddr));

  return HAL_OK;
}

static HAL_StatusTypeDef CRYP_SetInitVector(CRYP_HandleTypeDef *hcryp)
{
  uint32_t ivaddr;

#if !defined(AES_CR_NPBLB)
  if (hcryp->Init.ChainingMode == CRYP_CHAINMODE_AES_CMAC)
  {
    hcryp->Instance->IVR3 = 0;
    hcryp->Instance->IVR2 = 0;
    hcryp->Instance->IVR1 = 0;
    hcryp->Instance->IVR0 = 0;
  }
  else
#endif
  {
    if (hcryp->Init.pInitVect == NULL)
    {
      return HAL_ERROR;
    }

    ivaddr = (uint32_t)(hcryp->Init.pInitVect);

    hcryp->Instance->IVR3 = __REV(*(uint32_t*)(ivaddr));
    ivaddr+=4U;
    hcryp->Instance->IVR2 = __REV(*(uint32_t*)(ivaddr));
    ivaddr+=4U;
    hcryp->Instance->IVR1 = __REV(*(uint32_t*)(ivaddr));
    ivaddr+=4U;
    hcryp->Instance->IVR0 = __REV(*(uint32_t*)(ivaddr));
  }
  return HAL_OK;
}



static HAL_StatusTypeDef CRYP_AES_IT(CRYP_HandleTypeDef *hcryp)
{
  uint32_t inputaddr;
  uint32_t outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr;

  if(hcryp->State == HAL_CRYP_STATE_BUSY)
  {
    if (hcryp->Init.OperatingMode != CRYP_ALGOMODE_KEYDERIVATION)
    {
      /* Read the last available output block from the Data Output Register */
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUTR;
      outputaddr+=4U;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUTR;
      outputaddr+=4U;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUTR;
      outputaddr+=4U;
      *(uint32_t*)(outputaddr) = hcryp->Instance->DOUTR;
      hcryp->pCrypOutBuffPtr += 16;
      hcryp->CrypOutCount -= 16U;

    }
    else
    {
      /* Read the derived key from the Key registers */
      if (hcryp->Init.KeySize == CRYP_KEYSIZE_256B)
      {
        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR7);
        outputaddr+=4U;
        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR6);
        outputaddr+=4U;
        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR5);
        outputaddr+=4U;
        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR4);
        outputaddr+=4U;
      }

        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR3);
        outputaddr+=4U;
        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR2);
        outputaddr+=4U;
        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR1);
        outputaddr+=4U;
        *(uint32_t*)(outputaddr) = __REV(hcryp->Instance->KEYR0);
    }

    /* In case of ciphering or deciphering, check if all output text has been retrieved;
       In case of key derivation, stop right there */
    if ((hcryp->CrypOutCount == 0U) || (hcryp->Init.OperatingMode == CRYP_ALGOMODE_KEYDERIVATION))
    {
      /* Disable Computation Complete Flag and Errors Interrupts */
      __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_CCFIE|CRYP_IT_ERRIE);
      /* Change the CRYP state */
      hcryp->State = HAL_CRYP_STATE_READY;

     /* Process Unlocked */
      __HAL_UNLOCK(hcryp);

      /* Call computation complete callback */
#if (USE_HAL_CRYP_REGISTER_CALLBACKS == 1)
      hcryp->CompCpltCallback(hcryp);
#else
      HAL_CRYPEx_ComputationCpltCallback(hcryp);
#endif /* USE_HAL_CRYP_REGISTER_CALLBACKS */

      return HAL_OK;
    }
    /* If suspension flag has been raised, suspend processing */
    else if (hcryp->SuspendRequest == HAL_CRYP_SUSPEND)
    {
      /* reset ModeSuspend */
      hcryp->SuspendRequest = HAL_CRYP_SUSPEND_NONE;

      /* Disable Computation Complete Flag and Errors Interrupts */
      __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_CCFIE|CRYP_IT_ERRIE);
      /* Change the CRYP state */
      hcryp->State = HAL_CRYP_STATE_SUSPENDED;

     /* Process Unlocked */
      __HAL_UNLOCK(hcryp);

      return HAL_OK;
    }
    else /* Process the rest of input data */
    {
      /* Get the Intput data address */
      inputaddr = (uint32_t)hcryp->pCrypInBuffPtr;

      /* Increment/decrement instance pointer/counter */
      hcryp->pCrypInBuffPtr += 16;
      hcryp->CrypInCount -= 16U;

      /* Write the next input block in the Data Input register */
      hcryp->Instance->DINR = *(uint32_t*)(inputaddr);
      inputaddr+=4U;
      hcryp->Instance->DINR = *(uint32_t*)(inputaddr);
      inputaddr+=4U;
      hcryp->Instance->DINR  = *(uint32_t*)(inputaddr);
      inputaddr+=4U;
      hcryp->Instance->DINR = *(uint32_t*)(inputaddr);

      return HAL_OK;
    }
  }
  else
  {
    return HAL_BUSY;
  }
}




#endif /* AES */

#endif /* HAL_CRYP_MODULE_ENABLED */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/