HASH processing functions in DMA mode

HASH processing functions using DMA mode. More...

Functions
HAL_StatusTypeDef	HAL_HASH_MD5_Start_DMA (HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
	Initialize the HASH peripheral in MD5 mode then initiate a DMA transfer to feed the input buffer to the Peripheral.
HAL_StatusTypeDef	HAL_HASH_MD5_Finish (HASH_HandleTypeDef *hhash, uint8_t *pOutBuffer, uint32_t Timeout)
	Return the computed digest in MD5 mode.
HAL_StatusTypeDef	HAL_HASH_SHA1_Start_DMA (HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
	Initialize the HASH peripheral in SHA1 mode then initiate a DMA transfer to feed the input buffer to the Peripheral.
HAL_StatusTypeDef	HAL_HASH_SHA1_Finish (HASH_HandleTypeDef *hhash, uint8_t *pOutBuffer, uint32_t Timeout)
	Return the computed digest in SHA1 mode.

---

Detailed Description

HASH processing functions using DMA mode.

 ===============================================================================
                    ##### DMA mode HASH processing functions #####
 ===============================================================================
    [..]  This section provides functions allowing to calculate in DMA mode
          the hash value using one of the following algorithms:
      (+) MD5
         (++) HAL_HASH_MD5_Start_DMA()
         (++) HAL_HASH_MD5_Finish()
      (+) SHA1
         (++) HAL_HASH_SHA1_Start_DMA()
         (++) HAL_HASH_SHA1_Finish()

    [..]  When resorting to DMA mode to enter the data in the Peripheral, user must resort
          to  HAL_HASH_xxx_Start_DMA() then read the resulting digest with
          HAL_HASH_xxx_Finish().
    [..]  In case of multi-buffer HASH processing, MDMAT bit must first be set before
          the successive calls to HAL_HASH_xxx_Start_DMA(). Then, MDMAT bit needs to be
          reset before the last call to HAL_HASH_xxx_Start_DMA(). Digest is finally
          retrieved thanks to HAL_HASH_xxx_Finish().

---

Function Documentation

HAL_StatusTypeDef HAL_HASH_MD5_Finish	(	HASH_HandleTypeDef *	hhash,
		uint8_t *	pOutBuffer,
		uint32_t	Timeout
	)

Return the computed digest in MD5 mode.

Note:

The API waits for DCIS to be set then reads the computed digest.

HAL_HASH_MD5_Finish() can be used as well to retrieve the digest in HMAC MD5 mode.

Parameters:

hhash	HASH handle.
pOutBuffer	pointer to the computed digest. Digest size is 16 bytes.
Timeout	Timeout value.

Return values:

HAL

status

Definition at line 1097 of file stm32f4xx_hal_hash.c.

References HASH_Finish().

HAL_StatusTypeDef HAL_HASH_MD5_Start_DMA	(	HASH_HandleTypeDef *	hhash,
		uint8_t *	pInBuffer,
		uint32_t	Size
	)

Initialize the HASH peripheral in MD5 mode then initiate a DMA transfer to feed the input buffer to the Peripheral.

Note:

Once the DMA transfer is finished, HAL_HASH_MD5_Finish() API must be called to retrieve the computed digest.

Parameters:

hhash	HASH handle.
pInBuffer	pointer to the input buffer (buffer to be hashed).
Size	length of the input buffer in bytes.

Return values:

HAL

status

Definition at line 1082 of file stm32f4xx_hal_hash.c.

References HASH_ALGOSELECTION_MD5, and HASH_Start_DMA().

HAL_StatusTypeDef HAL_HASH_SHA1_Finish	(	HASH_HandleTypeDef *	hhash,
		uint8_t *	pOutBuffer,
		uint32_t	Timeout
	)

Return the computed digest in SHA1 mode.

Note:

The API waits for DCIS to be set then reads the computed digest.

HAL_HASH_SHA1_Finish() can be used as well to retrieve the digest in HMAC SHA1 mode.

Parameters:

hhash	HASH handle.
pOutBuffer	pointer to the computed digest. Digest size is 20 bytes.
Timeout	Timeout value.

Return values:

HAL

status

Definition at line 1128 of file stm32f4xx_hal_hash.c.

References HASH_Finish().

HAL_StatusTypeDef HAL_HASH_SHA1_Start_DMA	(	HASH_HandleTypeDef *	hhash,
		uint8_t *	pInBuffer,
		uint32_t	Size
	)

Initialize the HASH peripheral in SHA1 mode then initiate a DMA transfer to feed the input buffer to the Peripheral.

Note:

Once the DMA transfer is finished, HAL_HASH_SHA1_Finish() API must be called to retrieve the computed digest.

Parameters:

hhash	HASH handle.
pInBuffer	pointer to the input buffer (buffer to be hashed).
Size	length of the input buffer in bytes.

Return values:

HAL

status

Definition at line 1112 of file stm32f4xx_hal_hash.c.

References HASH_ALGOSELECTION_SHA1, and HASH_Start_DMA().