1041 lines
47 KiB
C
1041 lines
47 KiB
C
/**
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******************************************************************************
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* @file stm32h7xx_hal_hash_ex.c
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* @author MCD Application Team
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* @brief Extended HASH HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the HASH peripheral for SHA-224 and SHA-256
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* algorithms:
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* + HASH or HMAC processing in polling mode
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* + HASH or HMAC processing in interrupt mode
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* + HASH or HMAC processing in DMA mode
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* Additionally, this file provides functions to manage HMAC
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* multi-buffer DMA-based processing for MD-5, SHA-1, SHA-224
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* and SHA-256.
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*
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*
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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@verbatim
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===============================================================================
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##### HASH peripheral extended features #####
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===============================================================================
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[..]
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The SHA-224 and SHA-256 HASH and HMAC processing can be carried out exactly
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the same way as for SHA-1 or MD-5 algorithms.
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(#) Three modes are available.
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(##) Polling mode: processing APIs are blocking functions
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i.e. they process the data and wait till the digest computation is finished,
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e.g. HAL_HASHEx_xxx_Start()
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(##) Interrupt mode: processing APIs are not blocking functions
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i.e. they process the data under interrupt,
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e.g. HAL_HASHEx_xxx_Start_IT()
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(##) DMA mode: processing APIs are not blocking functions and the CPU is
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not used for data transfer i.e. the data transfer is ensured by DMA,
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e.g. HAL_HASHEx_xxx_Start_DMA(). Note that in DMA mode, a call to
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HAL_HASHEx_xxx_Finish() is then required to retrieve the digest.
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(#)Multi-buffer processing is possible in polling, interrupt and DMA modes.
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(##) In polling mode, only multi-buffer HASH processing is possible.
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API HAL_HASHEx_xxx_Accumulate() must be called for each input buffer, except for the last one.
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User must resort to HAL_HASHEx_xxx_Accumulate_End() to enter the last one and retrieve as
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well the computed digest.
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(##) In interrupt mode, API HAL_HASHEx_xxx_Accumulate_IT() must be called for each input buffer,
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except for the last one.
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User must resort to HAL_HASHEx_xxx_Accumulate_End_IT() to enter the last one and retrieve as
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well the computed digest.
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(##) In DMA mode, multi-buffer HASH and HMAC processing are possible.
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(+++) HASH processing: once initialization is done, MDMAT bit must be set through
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__HAL_HASH_SET_MDMAT() macro.
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From that point, each buffer can be fed to the Peripheral through HAL_HASHEx_xxx_Start_DMA() API.
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Before entering the last buffer, reset the MDMAT bit with __HAL_HASH_RESET_MDMAT()
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macro then wrap-up the HASH processing in feeding the last input buffer through the
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same API HAL_HASHEx_xxx_Start_DMA(). The digest can then be retrieved with a call to
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API HAL_HASHEx_xxx_Finish().
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(+++) HMAC processing (MD-5, SHA-1, SHA-224 and SHA-256 must all resort to
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extended functions): after initialization, the key and the first input buffer are entered
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in the Peripheral with the API HAL_HMACEx_xxx_Step1_2_DMA(). This carries out HMAC step 1 and
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starts step 2.
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The following buffers are next entered with the API HAL_HMACEx_xxx_Step2_DMA(). At this
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point, the HMAC processing is still carrying out step 2.
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Then, step 2 for the last input buffer and step 3 are carried out by a single call
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to HAL_HMACEx_xxx_Step2_3_DMA().
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The digest can finally be retrieved with a call to API HAL_HASH_xxx_Finish() for
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MD-5 and SHA-1, to HAL_HASHEx_xxx_Finish() for SHA-224 and SHA-256.
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@endverbatim
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32h7xx_hal.h"
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/** @addtogroup STM32H7xx_HAL_Driver
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* @{
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*/
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#if defined (HASH)
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/** @defgroup HASHEx HASHEx
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* @brief HASH HAL extended module driver.
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* @{
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*/
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#ifdef HAL_HASH_MODULE_ENABLED
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/** @defgroup HASHEx_Exported_Functions HASH Extended Exported Functions
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* @{
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*/
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/** @defgroup HASHEx_Exported_Functions_Group1 HASH extended processing functions in polling mode
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* @brief HASH extended processing functions using polling mode.
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*
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@verbatim
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===============================================================================
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##### Polling mode HASH extended processing functions #####
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===============================================================================
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[..] This section provides functions allowing to calculate in polling mode
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the hash value using one of the following algorithms:
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(+) SHA224
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(++) HAL_HASHEx_SHA224_Start()
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(++) HAL_HASHEx_SHA224_Accmlt()
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(++) HAL_HASHEx_SHA224_Accmlt_End()
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(+) SHA256
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(++) HAL_HASHEx_SHA256_Start()
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(++) HAL_HASHEx_SHA256_Accmlt()
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(++) HAL_HASHEx_SHA256_Accmlt_End()
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[..] For a single buffer to be hashed, user can resort to HAL_HASH_xxx_Start().
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[..] In case of multi-buffer HASH processing (a single digest is computed while
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several buffers are fed to the Peripheral), the user can resort to successive calls
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to HAL_HASHEx_xxx_Accumulate() and wrap-up the digest computation by a call
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to HAL_HASHEx_xxx_Accumulate_End().
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@endverbatim
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* @{
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*/
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/**
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* @brief Initialize the HASH peripheral in SHA224 mode, next process pInBuffer then
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* read the computed digest.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 28 bytes.
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* @param Timeout Timeout value
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA224_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer, uint32_t Timeout)
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{
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return HASH_Start(hhash, pInBuffer, Size, pOutBuffer, Timeout, HASH_ALGOSELECTION_SHA224);
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}
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/**
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* @brief If not already done, initialize the HASH peripheral in SHA224 mode then
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* processes pInBuffer.
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* @note Consecutive calls to HAL_HASHEx_SHA224_Accmlt() can be used to feed
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* several input buffers back-to-back to the Peripheral that will yield a single
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* HASH signature once all buffers have been entered. Wrap-up of input
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* buffers feeding and retrieval of digest is done by a call to
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* HAL_HASHEx_SHA224_Accmlt_End().
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* @note Field hhash->Phase of HASH handle is tested to check whether or not
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* the Peripheral has already been initialized.
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* @note Digest is not retrieved by this API, user must resort to HAL_HASHEx_SHA224_Accmlt_End()
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* to read it, feeding at the same time the last input buffer to the Peripheral.
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* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
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* HASH digest computation is corrupted. Only HAL_HASHEx_SHA224_Accmlt_End() is able
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* to manage the ending buffer with a length in bytes not a multiple of 4.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes, must be a multiple of 4.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA224_Accmlt(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
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{
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return HASH_Accumulate(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA224);
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}
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/**
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* @brief End computation of a single HASH signature after several calls to HAL_HASHEx_SHA224_Accmlt() API.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 28 bytes.
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* @param Timeout Timeout value
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA224_Accmlt_End(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer, uint32_t Timeout)
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{
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return HASH_Start(hhash, pInBuffer, Size, pOutBuffer, Timeout, HASH_ALGOSELECTION_SHA224);
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}
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/**
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* @brief Initialize the HASH peripheral in SHA256 mode, next process pInBuffer then
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* read the computed digest.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 32 bytes.
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* @param Timeout Timeout value
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA256_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer, uint32_t Timeout)
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{
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return HASH_Start(hhash, pInBuffer, Size, pOutBuffer, Timeout, HASH_ALGOSELECTION_SHA256);
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}
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/**
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* @brief If not already done, initialize the HASH peripheral in SHA256 mode then
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* processes pInBuffer.
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* @note Consecutive calls to HAL_HASHEx_SHA256_Accmlt() can be used to feed
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* several input buffers back-to-back to the Peripheral that will yield a single
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* HASH signature once all buffers have been entered. Wrap-up of input
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* buffers feeding and retrieval of digest is done by a call to
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* HAL_HASHEx_SHA256_Accmlt_End().
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* @note Field hhash->Phase of HASH handle is tested to check whether or not
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* the Peripheral has already been initialized.
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* @note Digest is not retrieved by this API, user must resort to HAL_HASHEx_SHA256_Accmlt_End()
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* to read it, feeding at the same time the last input buffer to the Peripheral.
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* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
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* HASH digest computation is corrupted. Only HAL_HASHEx_SHA256_Accmlt_End() is able
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* to manage the ending buffer with a length in bytes not a multiple of 4.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes, must be a multiple of 4.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA256_Accmlt(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
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{
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return HASH_Accumulate(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA256);
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}
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/**
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* @brief End computation of a single HASH signature after several calls to HAL_HASHEx_SHA256_Accmlt() API.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 32 bytes.
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* @param Timeout Timeout value
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA256_Accmlt_End(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer, uint32_t Timeout)
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{
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return HASH_Start(hhash, pInBuffer, Size, pOutBuffer, Timeout, HASH_ALGOSELECTION_SHA256);
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}
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/**
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* @}
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*/
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/** @defgroup HASHEx_Exported_Functions_Group2 HASH extended processing functions in interrupt mode
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* @brief HASH extended processing functions using interrupt mode.
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*
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@verbatim
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===============================================================================
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##### Interruption mode HASH extended processing functions #####
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===============================================================================
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[..] This section provides functions allowing to calculate in interrupt mode
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the hash value using one of the following algorithms:
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(+) SHA224
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(++) HAL_HASHEx_SHA224_Start_IT()
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(++) HAL_HASHEx_SHA224_Accmlt_IT()
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(++) HAL_HASHEx_SHA224_Accmlt_End_IT()
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(+) SHA256
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(++) HAL_HASHEx_SHA256_Start_IT()
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(++) HAL_HASHEx_SHA256_Accmlt_IT()
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(++) HAL_HASHEx_SHA256_Accmlt_End_IT()
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@endverbatim
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* @{
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*/
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/**
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* @brief Initialize the HASH peripheral in SHA224 mode, next process pInBuffer then
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* read the computed digest in interruption mode.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 28 bytes.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA224_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer)
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{
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return HASH_Start_IT(hhash, pInBuffer, Size, pOutBuffer, HASH_ALGOSELECTION_SHA224);
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}
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/**
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* @brief If not already done, initialize the HASH peripheral in SHA224 mode then
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* processes pInBuffer in interruption mode.
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* @note Consecutive calls to HAL_HASHEx_SHA224_Accmlt_IT() can be used to feed
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* several input buffers back-to-back to the Peripheral that will yield a single
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* HASH signature once all buffers have been entered. Wrap-up of input
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* buffers feeding and retrieval of digest is done by a call to
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* HAL_HASHEx_SHA224_Accmlt_End_IT().
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* @note Field hhash->Phase of HASH handle is tested to check whether or not
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* the Peripheral has already been initialized.
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* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
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* HASH digest computation is corrupted. Only HAL_HASHEx_SHA224_Accmlt_End_IT() is able
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* to manage the ending buffer with a length in bytes not a multiple of 4.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes, must be a multiple of 4.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA224_Accmlt_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
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{
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return HASH_Accumulate_IT(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA224);
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}
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/**
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* @brief End computation of a single HASH signature after several calls to HAL_HASHEx_SHA224_Accmlt_IT() API.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 28 bytes.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA224_Accmlt_End_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer)
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{
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return HASH_Start_IT(hhash, pInBuffer, Size, pOutBuffer, HASH_ALGOSELECTION_SHA224);
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}
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/**
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* @brief Initialize the HASH peripheral in SHA256 mode, next process pInBuffer then
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* read the computed digest in interruption mode.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 32 bytes.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA256_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer)
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{
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return HASH_Start_IT(hhash, pInBuffer, Size, pOutBuffer, HASH_ALGOSELECTION_SHA256);
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}
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/**
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* @brief If not already done, initialize the HASH peripheral in SHA256 mode then
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* processes pInBuffer in interruption mode.
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* @note Consecutive calls to HAL_HASHEx_SHA256_Accmlt_IT() can be used to feed
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* several input buffers back-to-back to the Peripheral that will yield a single
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* HASH signature once all buffers have been entered. Wrap-up of input
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* buffers feeding and retrieval of digest is done by a call to
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* HAL_HASHEx_SHA256_Accmlt_End_IT().
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* @note Field hhash->Phase of HASH handle is tested to check whether or not
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* the Peripheral has already been initialized.
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* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
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* HASH digest computation is corrupted. Only HAL_HASHEx_SHA256_Accmlt_End_IT() is able
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* to manage the ending buffer with a length in bytes not a multiple of 4.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes, must be a multiple of 4.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA256_Accmlt_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
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{
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return HASH_Accumulate_IT(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA256);
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}
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/**
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* @brief End computation of a single HASH signature after several calls to HAL_HASHEx_SHA256_Accmlt_IT() API.
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* @note Digest is available in pOutBuffer.
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* @param hhash HASH handle.
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* @param pInBuffer pointer to the input buffer (buffer to be hashed).
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* @param Size length of the input buffer in bytes.
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* @param pOutBuffer pointer to the computed digest. Digest size is 32 bytes.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HASHEx_SHA256_Accmlt_End_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
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uint8_t *pOutBuffer)
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{
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return HASH_Start_IT(hhash, pInBuffer, Size, pOutBuffer, HASH_ALGOSELECTION_SHA256);
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}
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/**
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* @}
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*/
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/** @defgroup HASHEx_Exported_Functions_Group3 HASH extended processing functions in DMA mode
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* @brief HASH extended processing functions using DMA mode.
|
|
*
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@verbatim
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|
===============================================================================
|
|
##### DMA mode HASH extended processing functions #####
|
|
===============================================================================
|
|
[..] This section provides functions allowing to calculate in DMA mode
|
|
the hash value using one of the following algorithms:
|
|
(+) SHA224
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(++) HAL_HASHEx_SHA224_Start_DMA()
|
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(++) HAL_HASHEx_SHA224_Finish()
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(+) SHA256
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(++) HAL_HASHEx_SHA256_Start_DMA()
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(++) HAL_HASHEx_SHA256_Finish()
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|
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[..] When resorting to DMA mode to enter the data in the Peripheral, user must resort
|
|
to HAL_HASHEx_xxx_Start_DMA() then read the resulting digest with
|
|
HAL_HASHEx_xxx_Finish().
|
|
|
|
[..] In case of multi-buffer HASH processing, MDMAT bit must first be set before
|
|
the successive calls to HAL_HASHEx_xxx_Start_DMA(). Then, MDMAT bit needs to be
|
|
reset before the last call to HAL_HASHEx_xxx_Start_DMA(). Digest is finally
|
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retrieved thanks to HAL_HASHEx_xxx_Finish().
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|
|
@endverbatim
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* @{
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*/
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|
|
|
|
|
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in SHA224 mode then initiate a DMA transfer
|
|
* to feed the input buffer to the Peripheral.
|
|
* @note Once the DMA transfer is finished, HAL_HASHEx_SHA224_Finish() API must
|
|
* be called to retrieve the computed digest.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HASHEx_SHA224_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
return HASH_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA224);
|
|
}
|
|
|
|
/**
|
|
* @brief Return the computed digest in SHA224 mode.
|
|
* @note The API waits for DCIS to be set then reads the computed digest.
|
|
* @note HAL_HASHEx_SHA224_Finish() can be used as well to retrieve the digest in
|
|
* HMAC SHA224 mode.
|
|
* @param hhash HASH handle.
|
|
* @param pOutBuffer pointer to the computed digest. Digest size is 28 bytes.
|
|
* @param Timeout Timeout value.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HASHEx_SHA224_Finish(HASH_HandleTypeDef *hhash, uint8_t *pOutBuffer, uint32_t Timeout)
|
|
{
|
|
return HASH_Finish(hhash, pOutBuffer, Timeout);
|
|
}
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in SHA256 mode then initiate a DMA transfer
|
|
* to feed the input buffer to the Peripheral.
|
|
* @note Once the DMA transfer is finished, HAL_HASHEx_SHA256_Finish() API must
|
|
* be called to retrieve the computed digest.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HASHEx_SHA256_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
return HASH_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA256);
|
|
}
|
|
|
|
/**
|
|
* @brief Return the computed digest in SHA256 mode.
|
|
* @note The API waits for DCIS to be set then reads the computed digest.
|
|
* @note HAL_HASHEx_SHA256_Finish() can be used as well to retrieve the digest in
|
|
* HMAC SHA256 mode.
|
|
* @param hhash HASH handle.
|
|
* @param pOutBuffer pointer to the computed digest. Digest size is 32 bytes.
|
|
* @param Timeout Timeout value.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HASHEx_SHA256_Finish(HASH_HandleTypeDef *hhash, uint8_t *pOutBuffer, uint32_t Timeout)
|
|
{
|
|
return HASH_Finish(hhash, pOutBuffer, Timeout);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup HASHEx_Exported_Functions_Group4 HMAC extended processing functions in polling mode
|
|
* @brief HMAC extended processing functions using polling mode.
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Polling mode HMAC extended processing functions #####
|
|
===============================================================================
|
|
[..] This section provides functions allowing to calculate in polling mode
|
|
the HMAC value using one of the following algorithms:
|
|
(+) SHA224
|
|
(++) HAL_HMACEx_SHA224_Start()
|
|
(+) SHA256
|
|
(++) HAL_HMACEx_SHA256_Start()
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in HMAC SHA224 mode, next process pInBuffer then
|
|
* read the computed digest.
|
|
* @note Digest is available in pOutBuffer.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @param pOutBuffer pointer to the computed digest. Digest size is 28 bytes.
|
|
* @param Timeout Timeout value.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA224_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
|
|
uint8_t *pOutBuffer, uint32_t Timeout)
|
|
{
|
|
return HMAC_Start(hhash, pInBuffer, Size, pOutBuffer, Timeout, HASH_ALGOSELECTION_SHA224);
|
|
}
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in HMAC SHA256 mode, next process pInBuffer then
|
|
* read the computed digest.
|
|
* @note Digest is available in pOutBuffer.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @param pOutBuffer pointer to the computed digest. Digest size is 32 bytes.
|
|
* @param Timeout Timeout value.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA256_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
|
|
uint8_t *pOutBuffer, uint32_t Timeout)
|
|
{
|
|
return HMAC_Start(hhash, pInBuffer, Size, pOutBuffer, Timeout, HASH_ALGOSELECTION_SHA256);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup HASHEx_Exported_Functions_Group5 HMAC extended processing functions in interrupt mode
|
|
* @brief HMAC extended processing functions using interruption mode.
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Interrupt mode HMAC extended processing functions #####
|
|
===============================================================================
|
|
[..] This section provides functions allowing to calculate in interrupt mode
|
|
the HMAC value using one of the following algorithms:
|
|
(+) SHA224
|
|
(++) HAL_HMACEx_SHA224_Start_IT()
|
|
(+) SHA256
|
|
(++) HAL_HMACEx_SHA256_Start_IT()
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in HMAC SHA224 mode, next process pInBuffer then
|
|
* read the computed digest in interrupt mode.
|
|
* @note Digest is available in pOutBuffer.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @param pOutBuffer pointer to the computed digest. Digest size is 28 bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA224_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
|
|
uint8_t *pOutBuffer)
|
|
{
|
|
return HMAC_Start_IT(hhash, pInBuffer, Size, pOutBuffer, HASH_ALGOSELECTION_SHA224);
|
|
}
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in HMAC SHA256 mode, next process pInBuffer then
|
|
* read the computed digest in interrupt mode.
|
|
* @note Digest is available in pOutBuffer.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @param pOutBuffer pointer to the computed digest. Digest size is 32 bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA256_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size,
|
|
uint8_t *pOutBuffer)
|
|
{
|
|
return HMAC_Start_IT(hhash, pInBuffer, Size, pOutBuffer, HASH_ALGOSELECTION_SHA256);
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/** @defgroup HASHEx_Exported_Functions_Group6 HMAC extended processing functions in DMA mode
|
|
* @brief HMAC extended processing functions using DMA mode.
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### DMA mode HMAC extended processing functions #####
|
|
===============================================================================
|
|
[..] This section provides functions allowing to calculate in DMA mode
|
|
the HMAC value using one of the following algorithms:
|
|
(+) SHA224
|
|
(++) HAL_HMACEx_SHA224_Start_DMA()
|
|
(+) SHA256
|
|
(++) HAL_HMACEx_SHA256_Start_DMA()
|
|
|
|
[..] When resorting to DMA mode to enter the data in the Peripheral for HMAC processing,
|
|
user must resort to HAL_HMACEx_xxx_Start_DMA() then read the resulting digest
|
|
with HAL_HASHEx_xxx_Finish().
|
|
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in HMAC SHA224 mode then initiate the required
|
|
* DMA transfers to feed the key and the input buffer to the Peripheral.
|
|
* @note Once the DMA transfers are finished (indicated by hhash->State set back
|
|
* to HAL_HASH_STATE_READY), HAL_HASHEx_SHA224_Finish() API must be called to retrieve
|
|
* the computed digest.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note If MDMAT bit is set before calling this function (multi-buffer
|
|
* HASH processing case), the input buffer size (in bytes) must be
|
|
* a multiple of 4 otherwise, the HASH digest computation is corrupted.
|
|
* For the processing of the last buffer of the thread, MDMAT bit must
|
|
* be reset and the buffer length (in bytes) doesn't have to be a
|
|
* multiple of 4.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA224_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA224);
|
|
}
|
|
|
|
/**
|
|
* @brief Initialize the HASH peripheral in HMAC SHA224 mode then initiate the required
|
|
* DMA transfers to feed the key and the input buffer to the Peripheral.
|
|
* @note Once the DMA transfers are finished (indicated by hhash->State set back
|
|
* to HAL_HASH_STATE_READY), HAL_HASHEx_SHA256_Finish() API must be called to retrieve
|
|
* the computed digest.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note If MDMAT bit is set before calling this function (multi-buffer
|
|
* HASH processing case), the input buffer size (in bytes) must be
|
|
* a multiple of 4 otherwise, the HASH digest computation is corrupted.
|
|
* For the processing of the last buffer of the thread, MDMAT bit must
|
|
* be reset and the buffer length (in bytes) doesn't have to be a
|
|
* multiple of 4.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (buffer to be hashed).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA256_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA256);
|
|
}
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup HASHEx_Exported_Functions_Group7 Multi-buffer HMAC extended processing functions in DMA mode
|
|
* @brief HMAC extended processing functions in multi-buffer DMA mode.
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Multi-buffer DMA mode HMAC extended processing functions #####
|
|
===============================================================================
|
|
[..] This section provides functions to manage HMAC multi-buffer
|
|
DMA-based processing for MD5, SHA1, SHA224 and SHA256 algorithms.
|
|
(+) MD5
|
|
(++) HAL_HMACEx_MD5_Step1_2_DMA()
|
|
(++) HAL_HMACEx_MD5_Step2_DMA()
|
|
(++) HAL_HMACEx_MD5_Step2_3_DMA()
|
|
(+) SHA1
|
|
(++) HAL_HMACEx_SHA1_Step1_2_DMA()
|
|
(++) HAL_HMACEx_SHA1_Step2_DMA()
|
|
(++) HAL_HMACEx_SHA1_Step2_3_DMA()
|
|
|
|
(+) SHA256
|
|
(++) HAL_HMACEx_SHA224_Step1_2_DMA()
|
|
(++) HAL_HMACEx_SHA224_Step2_DMA()
|
|
(++) HAL_HMACEx_SHA224_Step2_3_DMA()
|
|
(+) SHA256
|
|
(++) HAL_HMACEx_SHA256_Step1_2_DMA()
|
|
(++) HAL_HMACEx_SHA256_Step2_DMA()
|
|
(++) HAL_HMACEx_SHA256_Step2_3_DMA()
|
|
|
|
[..] User must first start-up the multi-buffer DMA-based HMAC computation in
|
|
calling HAL_HMACEx_xxx_Step1_2_DMA(). This carries out HMAC step 1 and
|
|
intiates step 2 with the first input buffer.
|
|
|
|
[..] The following buffers are next fed to the Peripheral with a call to the API
|
|
HAL_HMACEx_xxx_Step2_DMA(). There may be several consecutive calls
|
|
to this API.
|
|
|
|
[..] Multi-buffer DMA-based HMAC computation is wrapped up by a call to
|
|
HAL_HMACEx_xxx_Step2_3_DMA(). This finishes step 2 in feeding the last input
|
|
buffer to the Peripheral then carries out step 3.
|
|
|
|
[..] Digest is retrieved by a call to HAL_HASH_xxx_Finish() for MD-5 or
|
|
SHA-1, to HAL_HASHEx_xxx_Finish() for SHA-224 or SHA-256.
|
|
|
|
[..] If only two buffers need to be consecutively processed, a call to
|
|
HAL_HMACEx_xxx_Step1_2_DMA() followed by a call to HAL_HMACEx_xxx_Step2_3_DMA()
|
|
is sufficient.
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief MD5 HMAC step 1 completion and step 2 start in multi-buffer DMA mode.
|
|
* @note Step 1 consists in writing the inner hash function key in the Peripheral,
|
|
* step 2 consists in writing the message text.
|
|
* @note The API carries out the HMAC step 1 then starts step 2 with
|
|
* the first buffer entered to the Peripheral. DCAL bit is not automatically set after
|
|
* the message buffer feeding, allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_MD5_Step1_2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = SET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_MD5);
|
|
}
|
|
|
|
/**
|
|
* @brief MD5 HMAC step 2 in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral.
|
|
* @note The API carries on the HMAC step 2, applied to the buffer entered as input
|
|
* parameter. DCAL bit is not automatically set after the message buffer feeding,
|
|
* allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_MD5_Step2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
if (hhash->DigestCalculationDisable != SET)
|
|
{
|
|
return HAL_ERROR;
|
|
}
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_MD5);
|
|
}
|
|
|
|
/**
|
|
* @brief MD5 HMAC step 2 wrap-up and step 3 completion in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral,
|
|
* step 3 consists in writing the outer hash function key.
|
|
* @note The API wraps up the HMAC step 2 in processing the buffer entered as input
|
|
* parameter (the input buffer must be the last one of the multi-buffer thread)
|
|
* then carries out HMAC step 3.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note Once the DMA transfers are finished (indicated by hhash->State set back
|
|
* to HAL_HASH_STATE_READY), HAL_HASHEx_SHA256_Finish() API must be called to retrieve
|
|
* the computed digest.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_MD5_Step2_3_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = RESET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_MD5);
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief SHA1 HMAC step 1 completion and step 2 start in multi-buffer DMA mode.
|
|
* @note Step 1 consists in writing the inner hash function key in the Peripheral,
|
|
* step 2 consists in writing the message text.
|
|
* @note The API carries out the HMAC step 1 then starts step 2 with
|
|
* the first buffer entered to the Peripheral. DCAL bit is not automatically set after
|
|
* the message buffer feeding, allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA1_Step1_2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = SET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA1);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA1 HMAC step 2 in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral.
|
|
* @note The API carries on the HMAC step 2, applied to the buffer entered as input
|
|
* parameter. DCAL bit is not automatically set after the message buffer feeding,
|
|
* allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA1_Step2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
if (hhash->DigestCalculationDisable != SET)
|
|
{
|
|
return HAL_ERROR;
|
|
}
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA1);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA1 HMAC step 2 wrap-up and step 3 completion in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral,
|
|
* step 3 consists in writing the outer hash function key.
|
|
* @note The API wraps up the HMAC step 2 in processing the buffer entered as input
|
|
* parameter (the input buffer must be the last one of the multi-buffer thread)
|
|
* then carries out HMAC step 3.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note Once the DMA transfers are finished (indicated by hhash->State set back
|
|
* to HAL_HASH_STATE_READY), HAL_HASHEx_SHA256_Finish() API must be called to retrieve
|
|
* the computed digest.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA1_Step2_3_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = RESET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA1);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA224 HMAC step 1 completion and step 2 start in multi-buffer DMA mode.
|
|
* @note Step 1 consists in writing the inner hash function key in the Peripheral,
|
|
* step 2 consists in writing the message text.
|
|
* @note The API carries out the HMAC step 1 then starts step 2 with
|
|
* the first buffer entered to the Peripheral. DCAL bit is not automatically set after
|
|
* the message buffer feeding, allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA224_Step1_2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = SET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA224);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA224 HMAC step 2 in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral.
|
|
* @note The API carries on the HMAC step 2, applied to the buffer entered as input
|
|
* parameter. DCAL bit is not automatically set after the message buffer feeding,
|
|
* allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA224_Step2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
if (hhash->DigestCalculationDisable != SET)
|
|
{
|
|
return HAL_ERROR;
|
|
}
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA224);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA224 HMAC step 2 wrap-up and step 3 completion in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral,
|
|
* step 3 consists in writing the outer hash function key.
|
|
* @note The API wraps up the HMAC step 2 in processing the buffer entered as input
|
|
* parameter (the input buffer must be the last one of the multi-buffer thread)
|
|
* then carries out HMAC step 3.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note Once the DMA transfers are finished (indicated by hhash->State set back
|
|
* to HAL_HASH_STATE_READY), HAL_HASHEx_SHA256_Finish() API must be called to retrieve
|
|
* the computed digest.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA224_Step2_3_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = RESET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA224);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA256 HMAC step 1 completion and step 2 start in multi-buffer DMA mode.
|
|
* @note Step 1 consists in writing the inner hash function key in the Peripheral,
|
|
* step 2 consists in writing the message text.
|
|
* @note The API carries out the HMAC step 1 then starts step 2 with
|
|
* the first buffer entered to the Peripheral. DCAL bit is not automatically set after
|
|
* the message buffer feeding, allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA256_Step1_2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = SET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA256);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA256 HMAC step 2 in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral.
|
|
* @note The API carries on the HMAC step 2, applied to the buffer entered as input
|
|
* parameter. DCAL bit is not automatically set after the message buffer feeding,
|
|
* allowing other messages DMA transfers to occur.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note The input buffer size (in bytes) must be a multiple of 4 otherwise, the
|
|
* HASH digest computation is corrupted.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA256_Step2_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
if (hhash->DigestCalculationDisable != SET)
|
|
{
|
|
return HAL_ERROR;
|
|
}
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA256);
|
|
}
|
|
|
|
/**
|
|
* @brief SHA256 HMAC step 2 wrap-up and step 3 completion in multi-buffer DMA mode.
|
|
* @note Step 2 consists in writing the message text in the Peripheral,
|
|
* step 3 consists in writing the outer hash function key.
|
|
* @note The API wraps up the HMAC step 2 in processing the buffer entered as input
|
|
* parameter (the input buffer must be the last one of the multi-buffer thread)
|
|
* then carries out HMAC step 3.
|
|
* @note Same key is used for the inner and the outer hash functions; pointer to key and
|
|
* key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize.
|
|
* @note Once the DMA transfers are finished (indicated by hhash->State set back
|
|
* to HAL_HASH_STATE_READY), HAL_HASHEx_SHA256_Finish() API must be called to retrieve
|
|
* the computed digest.
|
|
* @param hhash HASH handle.
|
|
* @param pInBuffer pointer to the input buffer (message buffer).
|
|
* @param Size length of the input buffer in bytes.
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_HMACEx_SHA256_Step2_3_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
|
|
{
|
|
hhash->DigestCalculationDisable = RESET;
|
|
return HMAC_Start_DMA(hhash, pInBuffer, Size, HASH_ALGOSELECTION_SHA256);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
#endif /* HAL_HASH_MODULE_ENABLED */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
#endif /* HASH*/
|
|
/**
|
|
* @}
|
|
*/
|
|
|