shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_hash_ex.c@226:b062af740e40, 2014-06-11 (annotated)

Committer:
mbed_official
Date:
Wed Jun 11 09:45:09 2014 +0100
Revision:
226:b062af740e40
Parent:
106:ced8cbb51063 
Synchronized with git revision 42deb9ac55f9bdf9835e9c41dc757117d344ffda



Full URL: https://github.com/mbedmicro/mbed/commit/42deb9ac55f9bdf9835e9c41dc757117d344ffda/



[NUCLEO_F401RE] Remove call to Systick + bug fixes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /**
mbed_official 87:085cde657901 2 ******************************************************************************
mbed_official 87:085cde657901 3 * @file stm32f4xx_hal_hash_ex.c
mbed_official 87:085cde657901 4 * @author MCD Application Team
mbed_official 226:b062af740e40 5 * @version V1.1.0RC2
mbed_official 226:b062af740e40 6 * @date 14-May-2014
mbed_official 87:085cde657901 7 * @brief HASH HAL Extension module driver.
mbed_official 87:085cde657901 8 * This file provides firmware functions to manage the following
mbed_official 87:085cde657901 9 * functionalities of HASH peripheral:
mbed_official 87:085cde657901 10 * + Extended HASH processing functions based on SHA224 Algorithm
mbed_official 87:085cde657901 11 * + Extended HASH processing functions based on SHA256 Algorithm
mbed_official 87:085cde657901 12 *
mbed_official 87:085cde657901 13 @verbatim
mbed_official 87:085cde657901 14 ==============================================================================
mbed_official 87:085cde657901 15 ##### How to use this driver #####
mbed_official 87:085cde657901 16 ==============================================================================
mbed_official 87:085cde657901 17 [..]
mbed_official 87:085cde657901 18 The HASH HAL driver can be used as follows:
mbed_official 87:085cde657901 19 (#)Initialize the HASH low level resources by implementing the HAL_HASH_MspInit():
mbed_official 87:085cde657901 20 (##) Enable the HASH interface clock using __HASH_CLK_ENABLE()
mbed_official 87:085cde657901 21 (##) In case of using processing APIs based on interrupts (e.g. HAL_HMACEx_SHA224_Start())
mbed_official 87:085cde657901 22 (+++) Configure the HASH interrupt priority using HAL_NVIC_SetPriority()
mbed_official 87:085cde657901 23 (+++) Enable the HASH IRQ handler using HAL_NVIC_EnableIRQ()
mbed_official 87:085cde657901 24 (+++) In HASH IRQ handler, call HAL_HASH_IRQHandler()
mbed_official 87:085cde657901 25 (##) In case of using DMA to control data transfer (e.g. HAL_HMACEx_SH224_Start_DMA())
mbed_official 87:085cde657901 26 (+++) Enable the DMAx interface clock using __DMAx_CLK_ENABLE()
mbed_official 87:085cde657901 27 (+++) Configure and enable one DMA stream one for managing data transfer from
mbed_official 87:085cde657901 28 memory to peripheral (input stream). Managing data transfer from
mbed_official 87:085cde657901 29 peripheral to memory can be performed only using CPU
mbed_official 87:085cde657901 30 (+++) Associate the initialized DMA handle to the HASH DMA handle
mbed_official 87:085cde657901 31 using __HAL_LINKDMA()
mbed_official 87:085cde657901 32 (+++) Configure the priority and enable the NVIC for the transfer complete
mbed_official 87:085cde657901 33 interrupt on the DMA Stream: HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ()
mbed_official 87:085cde657901 34 (#)Initialize the HASH HAL using HAL_HASH_Init(). This function configures mainly:
mbed_official 87:085cde657901 35 (##) The data type: 1-bit, 8-bit, 16-bit and 32-bit.
mbed_official 87:085cde657901 36 (##) For HMAC, the encryption key.
mbed_official 87:085cde657901 37 (##) For HMAC, the key size used for encryption.
mbed_official 87:085cde657901 38 (#)Three processing functions are available:
mbed_official 87:085cde657901 39 (##) Polling mode: processing APIs are blocking functions
mbed_official 87:085cde657901 40 i.e. they process the data and wait till the digest computation is finished
mbed_official 87:085cde657901 41 e.g. HAL_HASHEx_SHA224_Start()
mbed_official 87:085cde657901 42 (##) Interrupt mode: encryption and decryption APIs are not blocking functions
mbed_official 87:085cde657901 43 i.e. they process the data under interrupt
mbed_official 87:085cde657901 44 e.g. HAL_HASHEx_SHA224_Start_IT()
mbed_official 87:085cde657901 45 (##) DMA mode: processing APIs are not blocking functions and the CPU is
mbed_official 87:085cde657901 46 not used for data transfer i.e. the data transfer is ensured by DMA
mbed_official 87:085cde657901 47 e.g. HAL_HASHEx_SHA224_Start_DMA()
mbed_official 87:085cde657901 48 (#)When the processing function is called at first time after HAL_HASH_Init()
mbed_official 87:085cde657901 49 the HASH peripheral is initialized and processes the buffer in input.
mbed_official 87:085cde657901 50 After that, the digest computation is started.
mbed_official 87:085cde657901 51 When processing multi-buffer use the accumulate function to write the
mbed_official 87:085cde657901 52 data in the peripheral without starting the digest computation. In last
mbed_official 87:085cde657901 53 buffer use the start function to input the last buffer ans start the digest
mbed_official 87:085cde657901 54 computation.
mbed_official 87:085cde657901 55 (##) e.g. HAL_HASHEx_SHA224_Accumulate() : write 1st data buffer in the peripheral without starting the digest computation
mbed_official 87:085cde657901 56 (##) write (n-1)th data buffer in the peripheral without starting the digest computation
mbed_official 87:085cde657901 57 (##) HAL_HASHEx_SHA224_Start() : write (n)th data buffer in the peripheral and start the digest computation
mbed_official 87:085cde657901 58 (#)In HMAC mode, there is no Accumulate API. Only Start API is available.
mbed_official 87:085cde657901 59 (#)In case of using DMA, call the DMA start processing e.g. HAL_HASHEx_SHA224_Start_DMA().
mbed_official 87:085cde657901 60 After that, call the finish function in order to get the digest value
mbed_official 87:085cde657901 61 e.g. HAL_HASHEx_SHA224_Finish()
mbed_official 87:085cde657901 62 (#)Call HAL_HASH_DeInit() to deinitialize the HASH peripheral.
mbed_official 87:085cde657901 63
mbed_official 87:085cde657901 64 @endverbatim
mbed_official 87:085cde657901 65 ******************************************************************************
mbed_official 87:085cde657901 66 * @attention
mbed_official 87:085cde657901 67 *
mbed_official 87:085cde657901 68 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 87:085cde657901 69 *
mbed_official 87:085cde657901 70 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 87:085cde657901 71 * are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 72 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 73 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 74 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 75 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 76 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 77 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 78 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 79 * without specific prior written permission.
mbed_official 87:085cde657901 80 *
mbed_official 87:085cde657901 81 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 82 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 83 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 84 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 85 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 86 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 87 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 88 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 89 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 90 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 91 *
mbed_official 87:085cde657901 92 ******************************************************************************
mbed_official 87:085cde657901 93 */
mbed_official 87:085cde657901 94
mbed_official 87:085cde657901 95 /* Includes ------------------------------------------------------------------*/
mbed_official 87:085cde657901 96 #include "stm32f4xx_hal.h"
mbed_official 87:085cde657901 97
mbed_official 87:085cde657901 98 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 87:085cde657901 99 * @{
mbed_official 87:085cde657901 100 */
mbed_official 87:085cde657901 101
mbed_official 87:085cde657901 102 /** @defgroup HASHEx
mbed_official 87:085cde657901 103 * @brief HASH Extension HAL module driver.
mbed_official 87:085cde657901 104 * @{
mbed_official 87:085cde657901 105 */
mbed_official 87:085cde657901 106
mbed_official 87:085cde657901 107 #ifdef HAL_HASH_MODULE_ENABLED
mbed_official 87:085cde657901 108
mbed_official 87:085cde657901 109 #if defined(STM32F437xx) || defined(STM32F439xx)
mbed_official 87:085cde657901 110
mbed_official 87:085cde657901 111 /* Private typedef -----------------------------------------------------------*/
mbed_official 87:085cde657901 112 /* Private define ------------------------------------------------------------*/
mbed_official 87:085cde657901 113 /* Private macro -------------------------------------------------------------*/
mbed_official 87:085cde657901 114 /* Private variables ---------------------------------------------------------*/
mbed_official 87:085cde657901 115 /* Private function prototypes -----------------------------------------------*/
mbed_official 87:085cde657901 116 static void HASHEx_DMAXferCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 117 static void HASHEx_WriteData(uint8_t *pInBuffer, uint32_t Size);
mbed_official 87:085cde657901 118 static void HASHEx_GetDigest(uint8_t *pMsgDigest, uint8_t Size);
mbed_official 87:085cde657901 119 static void HASHEx_DMAError(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 120
mbed_official 87:085cde657901 121 /* Private functions ---------------------------------------------------------*/
mbed_official 87:085cde657901 122
mbed_official 87:085cde657901 123 /** @defgroup HASHEx_Private_Functions
mbed_official 87:085cde657901 124 * @{
mbed_official 87:085cde657901 125 */
mbed_official 87:085cde657901 126
mbed_official 87:085cde657901 127 /** @defgroup HASHEx_Group1 HASH processing functions
mbed_official 87:085cde657901 128 * @brief processing functions using polling mode
mbed_official 87:085cde657901 129 *
mbed_official 87:085cde657901 130 @verbatim
mbed_official 87:085cde657901 131 ===============================================================================
mbed_official 87:085cde657901 132 ##### HASH processing using polling mode functions #####
mbed_official 87:085cde657901 133 ===============================================================================
mbed_official 87:085cde657901 134 [..] This section provides functions allowing to calculate in polling mode
mbed_official 87:085cde657901 135 the hash value using one of the following algorithms:
mbed_official 87:085cde657901 136 (+) SHA224
mbed_official 87:085cde657901 137 (+) SHA256
mbed_official 87:085cde657901 138
mbed_official 87:085cde657901 139 @endverbatim
mbed_official 87:085cde657901 140 * @{
mbed_official 87:085cde657901 141 */
mbed_official 87:085cde657901 142
mbed_official 87:085cde657901 143 /**
mbed_official 87:085cde657901 144 * @brief Initializes the HASH peripheral in SHA224 mode
mbed_official 87:085cde657901 145 * then processes pInBuffer. The digest is available in pOutBuffer
mbed_official 226:b062af740e40 146 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 147 * the configuration information for HASH module
mbed_official 87:085cde657901 148 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 149 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 150 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 151 * @param pOutBuffer: Pointer to the computed digest. Its size must be 28 bytes.
mbed_official 87:085cde657901 152 * @param Timeout: Specify Timeout value
mbed_official 87:085cde657901 153 * @retval HAL status
mbed_official 87:085cde657901 154 */
mbed_official 87:085cde657901 155 HAL_StatusTypeDef HAL_HASHEx_SHA224_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
mbed_official 87:085cde657901 156 {
mbed_official 87:085cde657901 157 uint32_t timeout = 0;
mbed_official 87:085cde657901 158
mbed_official 87:085cde657901 159 /* Process Locked */
mbed_official 87:085cde657901 160 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 161
mbed_official 87:085cde657901 162 /* Change the HASH state */
mbed_official 87:085cde657901 163 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 164
mbed_official 87:085cde657901 165 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 166 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 167 {
mbed_official 87:085cde657901 168 /* Select the SHA224 mode and reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 169 the message digest of a new message */
mbed_official 87:085cde657901 170 HASH->CR |= HASH_AlgoSelection_SHA224 | HASH_CR_INIT;
mbed_official 87:085cde657901 171 }
mbed_official 87:085cde657901 172
mbed_official 87:085cde657901 173 /* Set the phase */
mbed_official 87:085cde657901 174 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 175
mbed_official 87:085cde657901 176 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 177 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 178
mbed_official 87:085cde657901 179 /* Write input buffer in data register */
mbed_official 87:085cde657901 180 HASHEx_WriteData(pInBuffer, Size);
mbed_official 87:085cde657901 181
mbed_official 87:085cde657901 182 /* Start the digest calculation */
mbed_official 87:085cde657901 183 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 184
mbed_official 87:085cde657901 185 /* Get timeout */
mbed_official 87:085cde657901 186 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 187
mbed_official 87:085cde657901 188 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 189 {
mbed_official 87:085cde657901 190 /* Check for the Timeout */
mbed_official 87:085cde657901 191 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 192 {
mbed_official 87:085cde657901 193 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 194 {
mbed_official 87:085cde657901 195 /* Change state */
mbed_official 87:085cde657901 196 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 197
mbed_official 87:085cde657901 198 /* Process Unlocked */
mbed_official 87:085cde657901 199 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 200
mbed_official 87:085cde657901 201 return HAL_TIMEOUT;
mbed_official 87:085cde657901 202 }
mbed_official 87:085cde657901 203 }
mbed_official 87:085cde657901 204 }
mbed_official 87:085cde657901 205
mbed_official 87:085cde657901 206 /* Read the message digest */
mbed_official 87:085cde657901 207 HASHEx_GetDigest(pOutBuffer, 28);
mbed_official 87:085cde657901 208
mbed_official 87:085cde657901 209 /* Change the HASH state */
mbed_official 87:085cde657901 210 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 211
mbed_official 87:085cde657901 212 /* Process Unlocked */
mbed_official 87:085cde657901 213 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 214
mbed_official 87:085cde657901 215 /* Return function status */
mbed_official 87:085cde657901 216 return HAL_OK;
mbed_official 87:085cde657901 217 }
mbed_official 87:085cde657901 218
mbed_official 87:085cde657901 219 /**
mbed_official 87:085cde657901 220 * @brief Initializes the HASH peripheral in SHA256 mode then processes pInBuffer.
mbed_official 87:085cde657901 221 The digest is available in pOutBuffer.
mbed_official 226:b062af740e40 222 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 223 * the configuration information for HASH module
mbed_official 226:b062af740e40 224 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 225 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 226 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 227 * @param pOutBuffer: Pointer to the computed digest. Its size must be 32 bytes.
mbed_official 87:085cde657901 228 * @param Timeout: Specify Timeout value
mbed_official 87:085cde657901 229 * @retval HAL status
mbed_official 87:085cde657901 230 */
mbed_official 87:085cde657901 231 HAL_StatusTypeDef HAL_HASHEx_SHA256_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
mbed_official 87:085cde657901 232 {
mbed_official 87:085cde657901 233 uint32_t timeout = 0;
mbed_official 87:085cde657901 234
mbed_official 87:085cde657901 235 /* Process Locked */
mbed_official 87:085cde657901 236 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 237
mbed_official 87:085cde657901 238 /* Change the HASH state */
mbed_official 87:085cde657901 239 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 240
mbed_official 87:085cde657901 241 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 242 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 243 {
mbed_official 87:085cde657901 244 /* Select the SHA256 mode and reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 245 the message digest of a new message */
mbed_official 87:085cde657901 246 HASH->CR |= HASH_AlgoSelection_SHA256 | HASH_CR_INIT;
mbed_official 87:085cde657901 247 }
mbed_official 87:085cde657901 248
mbed_official 87:085cde657901 249 /* Set the phase */
mbed_official 87:085cde657901 250 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 251
mbed_official 87:085cde657901 252 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 253 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 254
mbed_official 87:085cde657901 255 /* Write input buffer in data register */
mbed_official 87:085cde657901 256 HASHEx_WriteData(pInBuffer, Size);
mbed_official 87:085cde657901 257
mbed_official 87:085cde657901 258 /* Start the digest calculation */
mbed_official 87:085cde657901 259 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 260
mbed_official 87:085cde657901 261 /* Get timeout */
mbed_official 87:085cde657901 262 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 263
mbed_official 87:085cde657901 264 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 265 {
mbed_official 87:085cde657901 266 /* Check for the Timeout */
mbed_official 87:085cde657901 267 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 268 {
mbed_official 87:085cde657901 269 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 270 {
mbed_official 87:085cde657901 271 /* Change state */
mbed_official 87:085cde657901 272 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 273
mbed_official 87:085cde657901 274 /* Process Unlocked */
mbed_official 87:085cde657901 275 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 276
mbed_official 87:085cde657901 277 return HAL_TIMEOUT;
mbed_official 87:085cde657901 278 }
mbed_official 87:085cde657901 279 }
mbed_official 87:085cde657901 280 }
mbed_official 87:085cde657901 281
mbed_official 87:085cde657901 282 /* Read the message digest */
mbed_official 87:085cde657901 283 HASHEx_GetDigest(pOutBuffer, 32);
mbed_official 87:085cde657901 284
mbed_official 87:085cde657901 285 /* Change the HASH state */
mbed_official 87:085cde657901 286 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 287
mbed_official 87:085cde657901 288 /* Process Unlocked */
mbed_official 87:085cde657901 289 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 290
mbed_official 87:085cde657901 291 /* Return function status */
mbed_official 87:085cde657901 292 return HAL_OK;
mbed_official 87:085cde657901 293 }
mbed_official 87:085cde657901 294
mbed_official 87:085cde657901 295
mbed_official 87:085cde657901 296 /**
mbed_official 87:085cde657901 297 * @brief Initializes the HASH peripheral in SHA224 mode
mbed_official 87:085cde657901 298 * then processes pInBuffer. The digest is available in pOutBuffer
mbed_official 226:b062af740e40 299 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 300 * the configuration information for HASH module
mbed_official 87:085cde657901 301 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 302 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 303 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 304 * @retval HAL status
mbed_official 87:085cde657901 305 */
mbed_official 87:085cde657901 306 HAL_StatusTypeDef HAL_HASHEx_SHA224_Accumulate(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
mbed_official 87:085cde657901 307 {
mbed_official 87:085cde657901 308 /* Process Locked */
mbed_official 87:085cde657901 309 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 310
mbed_official 87:085cde657901 311 /* Change the HASH state */
mbed_official 87:085cde657901 312 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 313
mbed_official 87:085cde657901 314 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 315 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 316 {
mbed_official 87:085cde657901 317 /* Select the SHA224 mode and reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 318 the message digest of a new message */
mbed_official 87:085cde657901 319 HASH->CR |= HASH_AlgoSelection_SHA224 | HASH_CR_INIT;
mbed_official 87:085cde657901 320 }
mbed_official 87:085cde657901 321
mbed_official 87:085cde657901 322 /* Set the phase */
mbed_official 87:085cde657901 323 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 324
mbed_official 87:085cde657901 325 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 326 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 327
mbed_official 87:085cde657901 328 /* Write input buffer in data register */
mbed_official 87:085cde657901 329 HASHEx_WriteData(pInBuffer, Size);
mbed_official 87:085cde657901 330
mbed_official 87:085cde657901 331 /* Change the HASH state */
mbed_official 87:085cde657901 332 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 333
mbed_official 87:085cde657901 334 /* Process Unlocked */
mbed_official 87:085cde657901 335 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 336
mbed_official 87:085cde657901 337 /* Return function status */
mbed_official 87:085cde657901 338 return HAL_OK;
mbed_official 87:085cde657901 339 }
mbed_official 87:085cde657901 340
mbed_official 87:085cde657901 341
mbed_official 87:085cde657901 342 /**
mbed_official 87:085cde657901 343 * @brief Initializes the HASH peripheral in SHA256 mode then processes pInBuffer.
mbed_official 87:085cde657901 344 The digest is available in pOutBuffer.
mbed_official 226:b062af740e40 345 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 346 * the configuration information for HASH module
mbed_official 87:085cde657901 347 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 348 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 349 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 350 * @retval HAL status
mbed_official 87:085cde657901 351 */
mbed_official 87:085cde657901 352 HAL_StatusTypeDef HAL_HASHEx_SHA256_Accumulate(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
mbed_official 87:085cde657901 353 {
mbed_official 87:085cde657901 354 /* Process Locked */
mbed_official 87:085cde657901 355 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 356
mbed_official 87:085cde657901 357 /* Change the HASH state */
mbed_official 87:085cde657901 358 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 359
mbed_official 87:085cde657901 360 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 361 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 362 {
mbed_official 87:085cde657901 363 /* Select the SHA256 mode and reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 364 the message digest of a new message */
mbed_official 87:085cde657901 365 HASH->CR |= HASH_AlgoSelection_SHA256 | HASH_CR_INIT;
mbed_official 87:085cde657901 366 }
mbed_official 87:085cde657901 367
mbed_official 87:085cde657901 368 /* Set the phase */
mbed_official 87:085cde657901 369 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 370
mbed_official 87:085cde657901 371 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 372 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 373
mbed_official 87:085cde657901 374 /* Write input buffer in data register */
mbed_official 87:085cde657901 375 HASHEx_WriteData(pInBuffer, Size);
mbed_official 87:085cde657901 376
mbed_official 87:085cde657901 377 /* Change the HASH state */
mbed_official 87:085cde657901 378 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 379
mbed_official 87:085cde657901 380 /* Process Unlocked */
mbed_official 87:085cde657901 381 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 382
mbed_official 87:085cde657901 383 /* Return function status */
mbed_official 87:085cde657901 384 return HAL_OK;
mbed_official 87:085cde657901 385 }
mbed_official 87:085cde657901 386
mbed_official 87:085cde657901 387
mbed_official 87:085cde657901 388 /**
mbed_official 87:085cde657901 389 * @}
mbed_official 87:085cde657901 390 */
mbed_official 87:085cde657901 391
mbed_official 87:085cde657901 392 /** @defgroup HASHEx_Group2 HMAC processing functions using polling mode
mbed_official 87:085cde657901 393 * @brief HMAC processing functions using polling mode .
mbed_official 87:085cde657901 394 *
mbed_official 87:085cde657901 395 @verbatim
mbed_official 87:085cde657901 396 ===============================================================================
mbed_official 87:085cde657901 397 ##### HMAC processing using polling mode functions #####
mbed_official 87:085cde657901 398 ===============================================================================
mbed_official 87:085cde657901 399 [..] This section provides functions allowing to calculate in polling mode
mbed_official 87:085cde657901 400 the HMAC value using one of the following algorithms:
mbed_official 87:085cde657901 401 (+) SHA224
mbed_official 87:085cde657901 402 (+) SHA256
mbed_official 87:085cde657901 403
mbed_official 87:085cde657901 404 @endverbatim
mbed_official 87:085cde657901 405 * @{
mbed_official 87:085cde657901 406 */
mbed_official 87:085cde657901 407
mbed_official 87:085cde657901 408 /**
mbed_official 87:085cde657901 409 * @brief Initializes the HASH peripheral in HMAC SHA224 mode
mbed_official 87:085cde657901 410 * then processes pInBuffer. The digest is available in pOutBuffer.
mbed_official 226:b062af740e40 411 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 412 * the configuration information for HASH module
mbed_official 226:b062af740e40 413 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 414 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 415 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 416 * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
mbed_official 87:085cde657901 417 * @retval HAL status
mbed_official 87:085cde657901 418 */
mbed_official 87:085cde657901 419 HAL_StatusTypeDef HAL_HMACEx_SHA224_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
mbed_official 87:085cde657901 420 {
mbed_official 87:085cde657901 421 uint32_t timeout = 0;
mbed_official 87:085cde657901 422
mbed_official 87:085cde657901 423 /* Process Locked */
mbed_official 87:085cde657901 424 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 425
mbed_official 87:085cde657901 426 /* Change the HASH state */
mbed_official 87:085cde657901 427 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 428
mbed_official 87:085cde657901 429 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 430 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 431 {
mbed_official 87:085cde657901 432 /* Check if key size is greater than 64 bytes */
mbed_official 87:085cde657901 433 if(hhash->Init.KeySize > 64)
mbed_official 87:085cde657901 434 {
mbed_official 87:085cde657901 435 /* Select the HMAC SHA224 mode */
mbed_official 87:085cde657901 436 HASH->CR |= (HASH_AlgoSelection_SHA224 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey | HASH_CR_INIT);
mbed_official 87:085cde657901 437 }
mbed_official 87:085cde657901 438 else
mbed_official 87:085cde657901 439 {
mbed_official 87:085cde657901 440 /* Select the HMAC SHA224 mode */
mbed_official 87:085cde657901 441 HASH->CR |= (HASH_AlgoSelection_SHA224 | HASH_AlgoMode_HMAC | HASH_CR_INIT);
mbed_official 87:085cde657901 442 }
mbed_official 87:085cde657901 443 }
mbed_official 87:085cde657901 444
mbed_official 87:085cde657901 445 /* Set the phase */
mbed_official 87:085cde657901 446 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 447
mbed_official 87:085cde657901 448 /************************** STEP 1 ******************************************/
mbed_official 87:085cde657901 449 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 450 __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
mbed_official 87:085cde657901 451
mbed_official 87:085cde657901 452 /* Write input buffer in data register */
mbed_official 87:085cde657901 453 HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
mbed_official 87:085cde657901 454
mbed_official 87:085cde657901 455 /* Start the digest calculation */
mbed_official 87:085cde657901 456 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 457
mbed_official 87:085cde657901 458 /* Get timeout */
mbed_official 87:085cde657901 459 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 460
mbed_official 87:085cde657901 461 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 462 {
mbed_official 87:085cde657901 463 /* Check for the Timeout */
mbed_official 87:085cde657901 464 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 465 {
mbed_official 87:085cde657901 466 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 467 {
mbed_official 87:085cde657901 468 /* Change state */
mbed_official 87:085cde657901 469 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 470
mbed_official 87:085cde657901 471 /* Process Unlocked */
mbed_official 87:085cde657901 472 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 473
mbed_official 87:085cde657901 474 return HAL_TIMEOUT;
mbed_official 87:085cde657901 475 }
mbed_official 87:085cde657901 476 }
mbed_official 87:085cde657901 477 }
mbed_official 87:085cde657901 478 /************************** STEP 2 ******************************************/
mbed_official 87:085cde657901 479 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 480 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 481
mbed_official 87:085cde657901 482 /* Write input buffer in data register */
mbed_official 87:085cde657901 483 HASHEx_WriteData(pInBuffer, Size);
mbed_official 87:085cde657901 484
mbed_official 87:085cde657901 485 /* Start the digest calculation */
mbed_official 87:085cde657901 486 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 487
mbed_official 87:085cde657901 488 /* Get timeout */
mbed_official 87:085cde657901 489 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 490
mbed_official 87:085cde657901 491 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 492 {
mbed_official 87:085cde657901 493 /* Check for the Timeout */
mbed_official 87:085cde657901 494 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 495 {
mbed_official 87:085cde657901 496 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 497 {
mbed_official 87:085cde657901 498 /* Change state */
mbed_official 87:085cde657901 499 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 500
mbed_official 87:085cde657901 501 /* Process Unlocked */
mbed_official 87:085cde657901 502 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 503
mbed_official 87:085cde657901 504 return HAL_TIMEOUT;
mbed_official 87:085cde657901 505 }
mbed_official 87:085cde657901 506 }
mbed_official 87:085cde657901 507 }
mbed_official 87:085cde657901 508 /************************** STEP 3 ******************************************/
mbed_official 87:085cde657901 509 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 510 __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
mbed_official 87:085cde657901 511
mbed_official 87:085cde657901 512 /* Write input buffer in data register */
mbed_official 87:085cde657901 513 HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
mbed_official 87:085cde657901 514
mbed_official 87:085cde657901 515 /* Start the digest calculation */
mbed_official 87:085cde657901 516 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 517
mbed_official 87:085cde657901 518 /* Get timeout */
mbed_official 87:085cde657901 519 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 520
mbed_official 87:085cde657901 521 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 522 {
mbed_official 87:085cde657901 523 /* Check for the Timeout */
mbed_official 87:085cde657901 524 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 525 {
mbed_official 87:085cde657901 526 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 527 {
mbed_official 87:085cde657901 528 /* Change state */
mbed_official 87:085cde657901 529 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 530
mbed_official 87:085cde657901 531 /* Process Unlocked */
mbed_official 87:085cde657901 532 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 533
mbed_official 87:085cde657901 534 return HAL_TIMEOUT;
mbed_official 87:085cde657901 535 }
mbed_official 87:085cde657901 536 }
mbed_official 87:085cde657901 537 }
mbed_official 87:085cde657901 538 /* Read the message digest */
mbed_official 87:085cde657901 539 HASHEx_GetDigest(pOutBuffer, 28);
mbed_official 87:085cde657901 540
mbed_official 87:085cde657901 541 /* Change the HASH state */
mbed_official 87:085cde657901 542 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 543
mbed_official 87:085cde657901 544 /* Process Unlocked */
mbed_official 87:085cde657901 545 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 546
mbed_official 87:085cde657901 547 /* Return function status */
mbed_official 87:085cde657901 548 return HAL_OK;
mbed_official 87:085cde657901 549 }
mbed_official 87:085cde657901 550
mbed_official 87:085cde657901 551 /**
mbed_official 87:085cde657901 552 * @brief Initializes the HASH peripheral in HMAC SHA256 mode
mbed_official 87:085cde657901 553 * then processes pInBuffer. The digest is available in pOutBuffer
mbed_official 226:b062af740e40 554 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 555 * the configuration information for HASH module
mbed_official 226:b062af740e40 556 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 557 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 558 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 559 * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
mbed_official 87:085cde657901 560 * @retval HAL status
mbed_official 87:085cde657901 561 */
mbed_official 87:085cde657901 562 HAL_StatusTypeDef HAL_HMACEx_SHA256_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
mbed_official 87:085cde657901 563 {
mbed_official 87:085cde657901 564 uint32_t timeout = 0;
mbed_official 87:085cde657901 565
mbed_official 87:085cde657901 566 /* Process Locked */
mbed_official 87:085cde657901 567 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 568
mbed_official 87:085cde657901 569 /* Change the HASH state */
mbed_official 87:085cde657901 570 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 571
mbed_official 87:085cde657901 572 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 573 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 574 {
mbed_official 87:085cde657901 575 /* Check if key size is greater than 64 bytes */
mbed_official 87:085cde657901 576 if(hhash->Init.KeySize > 64)
mbed_official 87:085cde657901 577 {
mbed_official 87:085cde657901 578 /* Select the HMAC SHA256 mode */
mbed_official 87:085cde657901 579 HASH->CR |= (HASH_AlgoSelection_SHA256 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey);
mbed_official 87:085cde657901 580 }
mbed_official 87:085cde657901 581 else
mbed_official 87:085cde657901 582 {
mbed_official 87:085cde657901 583 /* Select the HMAC SHA256 mode */
mbed_official 87:085cde657901 584 HASH->CR |= (HASH_AlgoSelection_SHA256 | HASH_AlgoMode_HMAC);
mbed_official 87:085cde657901 585 }
mbed_official 87:085cde657901 586 /* Reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 587 the message digest of a new message */
mbed_official 87:085cde657901 588 HASH->CR |= HASH_CR_INIT;
mbed_official 87:085cde657901 589 }
mbed_official 87:085cde657901 590
mbed_official 87:085cde657901 591 /* Set the phase */
mbed_official 87:085cde657901 592 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 593
mbed_official 87:085cde657901 594 /************************** STEP 1 ******************************************/
mbed_official 87:085cde657901 595 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 596 __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
mbed_official 87:085cde657901 597
mbed_official 87:085cde657901 598 /* Write input buffer in data register */
mbed_official 87:085cde657901 599 HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
mbed_official 87:085cde657901 600
mbed_official 87:085cde657901 601 /* Start the digest calculation */
mbed_official 87:085cde657901 602 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 603
mbed_official 87:085cde657901 604 /* Get timeout */
mbed_official 87:085cde657901 605 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 606
mbed_official 87:085cde657901 607 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 608 {
mbed_official 87:085cde657901 609 /* Check for the Timeout */
mbed_official 87:085cde657901 610 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 611 {
mbed_official 87:085cde657901 612 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 613 {
mbed_official 87:085cde657901 614 /* Change state */
mbed_official 87:085cde657901 615 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 616
mbed_official 87:085cde657901 617 /* Process Unlocked */
mbed_official 87:085cde657901 618 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 619
mbed_official 87:085cde657901 620 return HAL_TIMEOUT;
mbed_official 87:085cde657901 621 }
mbed_official 87:085cde657901 622 }
mbed_official 87:085cde657901 623 }
mbed_official 87:085cde657901 624 /************************** STEP 2 ******************************************/
mbed_official 87:085cde657901 625 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 626 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 627
mbed_official 87:085cde657901 628 /* Write input buffer in data register */
mbed_official 87:085cde657901 629 HASHEx_WriteData(pInBuffer, Size);
mbed_official 87:085cde657901 630
mbed_official 87:085cde657901 631 /* Start the digest calculation */
mbed_official 87:085cde657901 632 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 633
mbed_official 87:085cde657901 634 /* Get timeout */
mbed_official 87:085cde657901 635 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 636
mbed_official 87:085cde657901 637 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 638 {
mbed_official 87:085cde657901 639 /* Check for the Timeout */
mbed_official 87:085cde657901 640 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 641 {
mbed_official 87:085cde657901 642 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 643 {
mbed_official 87:085cde657901 644 /* Change state */
mbed_official 87:085cde657901 645 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 646
mbed_official 87:085cde657901 647 /* Process Unlocked */
mbed_official 87:085cde657901 648 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 649
mbed_official 87:085cde657901 650 return HAL_TIMEOUT;
mbed_official 87:085cde657901 651 }
mbed_official 87:085cde657901 652 }
mbed_official 87:085cde657901 653 }
mbed_official 87:085cde657901 654 /************************** STEP 3 ******************************************/
mbed_official 87:085cde657901 655 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 656 __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
mbed_official 87:085cde657901 657
mbed_official 87:085cde657901 658 /* Write input buffer in data register */
mbed_official 87:085cde657901 659 HASHEx_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
mbed_official 87:085cde657901 660
mbed_official 87:085cde657901 661 /* Start the digest calculation */
mbed_official 87:085cde657901 662 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 663
mbed_official 87:085cde657901 664 /* Get timeout */
mbed_official 87:085cde657901 665 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 666
mbed_official 87:085cde657901 667 while((HASH->SR & HASH_FLAG_BUSY) == HASH_FLAG_BUSY)
mbed_official 87:085cde657901 668 {
mbed_official 87:085cde657901 669 /* Check for the Timeout */
mbed_official 87:085cde657901 670 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 671 {
mbed_official 87:085cde657901 672 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 673 {
mbed_official 87:085cde657901 674 /* Change state */
mbed_official 87:085cde657901 675 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 676
mbed_official 87:085cde657901 677 /* Process Unlocked */
mbed_official 87:085cde657901 678 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 679
mbed_official 87:085cde657901 680 return HAL_TIMEOUT;
mbed_official 87:085cde657901 681 }
mbed_official 87:085cde657901 682 }
mbed_official 87:085cde657901 683 }
mbed_official 87:085cde657901 684 /* Read the message digest */
mbed_official 87:085cde657901 685 HASHEx_GetDigest(pOutBuffer, 32);
mbed_official 87:085cde657901 686
mbed_official 87:085cde657901 687 /* Change the HASH state */
mbed_official 87:085cde657901 688 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 689
mbed_official 87:085cde657901 690 /* Process Unlocked */
mbed_official 87:085cde657901 691 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 692
mbed_official 87:085cde657901 693 /* Return function status */
mbed_official 87:085cde657901 694 return HAL_OK;
mbed_official 87:085cde657901 695 }
mbed_official 87:085cde657901 696
mbed_official 87:085cde657901 697 /**
mbed_official 87:085cde657901 698 * @}
mbed_official 87:085cde657901 699 */
mbed_official 87:085cde657901 700
mbed_official 87:085cde657901 701 /** @defgroup HASHEx_Group3 HASH processing functions using interrupt mode
mbed_official 87:085cde657901 702 * @brief processing functions using interrupt mode.
mbed_official 87:085cde657901 703 *
mbed_official 87:085cde657901 704 @verbatim
mbed_official 87:085cde657901 705 ===============================================================================
mbed_official 87:085cde657901 706 ##### HASH processing using interrupt functions #####
mbed_official 87:085cde657901 707 ===============================================================================
mbed_official 87:085cde657901 708 [..] This section provides functions allowing to calculate in interrupt mode
mbed_official 87:085cde657901 709 the hash value using one of the following algorithms:
mbed_official 87:085cde657901 710 (+) SHA224
mbed_official 87:085cde657901 711 (+) SHA256
mbed_official 87:085cde657901 712
mbed_official 87:085cde657901 713 @endverbatim
mbed_official 87:085cde657901 714 * @{
mbed_official 87:085cde657901 715 */
mbed_official 87:085cde657901 716
mbed_official 87:085cde657901 717 /**
mbed_official 87:085cde657901 718 * @brief Initializes the HASH peripheral in SHA224 mode then processes pInBuffer.
mbed_official 87:085cde657901 719 * The digest is available in pOutBuffer.
mbed_official 226:b062af740e40 720 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 721 * the configuration information for HASH module
mbed_official 87:085cde657901 722 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 723 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 724 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 725 * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
mbed_official 87:085cde657901 726 * @retval HAL status
mbed_official 87:085cde657901 727 */
mbed_official 87:085cde657901 728 HAL_StatusTypeDef HAL_HASHEx_SHA224_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer)
mbed_official 87:085cde657901 729 {
mbed_official 87:085cde657901 730 uint32_t inputaddr;
mbed_official 87:085cde657901 731 uint32_t buffercounter;
mbed_official 87:085cde657901 732 uint32_t inputcounter;
mbed_official 87:085cde657901 733
mbed_official 87:085cde657901 734 /* Process Locked */
mbed_official 87:085cde657901 735 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 736
mbed_official 87:085cde657901 737 if(hhash->HashITCounter == 0)
mbed_official 87:085cde657901 738 {
mbed_official 87:085cde657901 739 hhash->HashITCounter = 1;
mbed_official 87:085cde657901 740 }
mbed_official 87:085cde657901 741 else
mbed_official 87:085cde657901 742 {
mbed_official 87:085cde657901 743 hhash->HashITCounter = 0;
mbed_official 87:085cde657901 744 }
mbed_official 87:085cde657901 745 if(hhash->State == HAL_HASH_STATE_READY)
mbed_official 87:085cde657901 746 {
mbed_official 87:085cde657901 747 /* Change the HASH state */
mbed_official 87:085cde657901 748 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 749
mbed_official 87:085cde657901 750 hhash->HashInCount = Size;
mbed_official 87:085cde657901 751 hhash->pHashInBuffPtr = pInBuffer;
mbed_official 87:085cde657901 752 hhash->pHashOutBuffPtr = pOutBuffer;
mbed_official 87:085cde657901 753
mbed_official 87:085cde657901 754 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 755 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 756 {
mbed_official 87:085cde657901 757 /* Select the SHA224 mode */
mbed_official 87:085cde657901 758 HASH->CR |= HASH_AlgoSelection_SHA224;
mbed_official 87:085cde657901 759 /* Reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 760 the message digest of a new message */
mbed_official 87:085cde657901 761 HASH->CR |= HASH_CR_INIT;
mbed_official 87:085cde657901 762 }
mbed_official 87:085cde657901 763
mbed_official 87:085cde657901 764 /* Set the phase */
mbed_official 87:085cde657901 765 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 766
mbed_official 87:085cde657901 767 /* Process Unlocked */
mbed_official 87:085cde657901 768 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 769
mbed_official 87:085cde657901 770 /* Enable Interrupts */
mbed_official 87:085cde657901 771 HASH->IMR = (HASH_IT_DINI | HASH_IT_DCI);
mbed_official 87:085cde657901 772
mbed_official 87:085cde657901 773 /* Return function status */
mbed_official 87:085cde657901 774 return HAL_OK;
mbed_official 87:085cde657901 775 }
mbed_official 87:085cde657901 776 if(__HAL_HASH_GET_FLAG(HASH_FLAG_DCIS))
mbed_official 87:085cde657901 777 {
mbed_official 87:085cde657901 778 /* Read the message digest */
mbed_official 87:085cde657901 779 HASHEx_GetDigest(hhash->pHashOutBuffPtr, 28);
mbed_official 87:085cde657901 780 if(hhash->HashInCount == 0)
mbed_official 87:085cde657901 781 {
mbed_official 87:085cde657901 782 /* Disable Interrupts */
mbed_official 87:085cde657901 783 HASH->IMR = 0;
mbed_official 87:085cde657901 784 /* Change the HASH state */
mbed_official 87:085cde657901 785 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 786 /* Call digest computation complete callback */
mbed_official 87:085cde657901 787 HAL_HASH_DgstCpltCallback(hhash);
mbed_official 87:085cde657901 788 }
mbed_official 87:085cde657901 789 }
mbed_official 87:085cde657901 790 if(__HAL_HASH_GET_FLAG(HASH_FLAG_DINIS))
mbed_official 87:085cde657901 791 {
mbed_official 87:085cde657901 792 if(hhash->HashInCount > 64)
mbed_official 87:085cde657901 793 {
mbed_official 87:085cde657901 794 inputaddr = (uint32_t)hhash->pHashInBuffPtr;
mbed_official 87:085cde657901 795 /* Write the Input block in the Data IN register */
mbed_official 87:085cde657901 796 for(buffercounter = 0; buffercounter < 64; buffercounter+=4)
mbed_official 87:085cde657901 797 {
mbed_official 87:085cde657901 798 HASH->DIN = *(uint32_t*)inputaddr;
mbed_official 87:085cde657901 799 inputaddr+=4;
mbed_official 87:085cde657901 800 }
mbed_official 87:085cde657901 801 if(hhash->HashITCounter == 0)
mbed_official 87:085cde657901 802 {
mbed_official 87:085cde657901 803 HASH->DIN = *(uint32_t*)inputaddr;
mbed_official 87:085cde657901 804 if(hhash->HashInCount >= 68)
mbed_official 87:085cde657901 805 {
mbed_official 87:085cde657901 806 /* Decrement buffer counter */
mbed_official 87:085cde657901 807 hhash->HashInCount -= 68;
mbed_official 87:085cde657901 808 hhash->pHashInBuffPtr+= 68;
mbed_official 87:085cde657901 809 }
mbed_official 87:085cde657901 810 else
mbed_official 87:085cde657901 811 {
mbed_official 87:085cde657901 812 hhash->HashInCount -= 64;
mbed_official 87:085cde657901 813 }
mbed_official 87:085cde657901 814 }
mbed_official 87:085cde657901 815 else
mbed_official 87:085cde657901 816 {
mbed_official 87:085cde657901 817 /* Decrement buffer counter */
mbed_official 87:085cde657901 818 hhash->HashInCount -= 64;
mbed_official 87:085cde657901 819 hhash->pHashInBuffPtr+= 64;
mbed_official 87:085cde657901 820 }
mbed_official 87:085cde657901 821 }
mbed_official 87:085cde657901 822 else
mbed_official 87:085cde657901 823 {
mbed_official 87:085cde657901 824 /* Get the buffer address */
mbed_official 87:085cde657901 825 inputaddr = (uint32_t)hhash->pHashInBuffPtr;
mbed_official 87:085cde657901 826 /* Get the buffer counter */
mbed_official 87:085cde657901 827 inputcounter = hhash->HashInCount;
mbed_official 87:085cde657901 828 /* Disable Interrupts */
mbed_official 87:085cde657901 829 HASH->IMR &= ~(HASH_IT_DINI);
mbed_official 87:085cde657901 830 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 831 __HAL_HASH_SET_NBVALIDBITS(inputcounter);
mbed_official 87:085cde657901 832
mbed_official 87:085cde657901 833 if((inputcounter > 4) && (inputcounter%4))
mbed_official 87:085cde657901 834 {
mbed_official 87:085cde657901 835 inputcounter = (inputcounter+4-inputcounter%4);
mbed_official 87:085cde657901 836 }
mbed_official 87:085cde657901 837
mbed_official 87:085cde657901 838 /* Write the Input block in the Data IN register */
mbed_official 87:085cde657901 839 for(buffercounter = 0; buffercounter < inputcounter/4; buffercounter++)
mbed_official 87:085cde657901 840 {
mbed_official 87:085cde657901 841 HASH->DIN = *(uint32_t*)inputaddr;
mbed_official 87:085cde657901 842 inputaddr+=4;
mbed_official 87:085cde657901 843 }
mbed_official 87:085cde657901 844 /* Start the digest calculation */
mbed_official 87:085cde657901 845 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 846 /* Reset buffer counter */
mbed_official 87:085cde657901 847 hhash->HashInCount = 0;
mbed_official 87:085cde657901 848 }
mbed_official 87:085cde657901 849 /* Call Input data transfer complete callback */
mbed_official 87:085cde657901 850 HAL_HASH_InCpltCallback(hhash);
mbed_official 87:085cde657901 851 }
mbed_official 87:085cde657901 852
mbed_official 87:085cde657901 853 /* Process Unlocked */
mbed_official 87:085cde657901 854 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 855
mbed_official 87:085cde657901 856 /* Return function status */
mbed_official 87:085cde657901 857 return HAL_OK;
mbed_official 87:085cde657901 858 }
mbed_official 87:085cde657901 859
mbed_official 87:085cde657901 860
mbed_official 87:085cde657901 861 /**
mbed_official 87:085cde657901 862 * @brief Initializes the HASH peripheral in SHA256 mode then processes pInBuffer.
mbed_official 87:085cde657901 863 * The digest is available in pOutBuffer.
mbed_official 226:b062af740e40 864 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 865 * the configuration information for HASH module
mbed_official 87:085cde657901 866 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 867 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 868 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 869 * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
mbed_official 87:085cde657901 870 * @retval HAL status
mbed_official 87:085cde657901 871 */
mbed_official 87:085cde657901 872 HAL_StatusTypeDef HAL_HASHEx_SHA256_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer)
mbed_official 87:085cde657901 873 {
mbed_official 87:085cde657901 874 uint32_t inputaddr;
mbed_official 87:085cde657901 875 uint32_t buffercounter;
mbed_official 87:085cde657901 876 uint32_t inputcounter;
mbed_official 87:085cde657901 877
mbed_official 87:085cde657901 878 /* Process Locked */
mbed_official 87:085cde657901 879 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 880
mbed_official 87:085cde657901 881 if(hhash->HashITCounter == 0)
mbed_official 87:085cde657901 882 {
mbed_official 87:085cde657901 883 hhash->HashITCounter = 1;
mbed_official 87:085cde657901 884 }
mbed_official 87:085cde657901 885 else
mbed_official 87:085cde657901 886 {
mbed_official 87:085cde657901 887 hhash->HashITCounter = 0;
mbed_official 87:085cde657901 888 }
mbed_official 87:085cde657901 889 if(hhash->State == HAL_HASH_STATE_READY)
mbed_official 87:085cde657901 890 {
mbed_official 87:085cde657901 891 /* Change the HASH state */
mbed_official 87:085cde657901 892 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 893
mbed_official 87:085cde657901 894 hhash->HashInCount = Size;
mbed_official 87:085cde657901 895 hhash->pHashInBuffPtr = pInBuffer;
mbed_official 87:085cde657901 896 hhash->pHashOutBuffPtr = pOutBuffer;
mbed_official 87:085cde657901 897
mbed_official 87:085cde657901 898 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 899 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 900 {
mbed_official 87:085cde657901 901 /* Select the SHA256 mode */
mbed_official 87:085cde657901 902 HASH->CR |= HASH_AlgoSelection_SHA256;
mbed_official 87:085cde657901 903 /* Reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 904 the message digest of a new message */
mbed_official 87:085cde657901 905 HASH->CR |= HASH_CR_INIT;
mbed_official 87:085cde657901 906 }
mbed_official 87:085cde657901 907
mbed_official 87:085cde657901 908 /* Set the phase */
mbed_official 87:085cde657901 909 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 910
mbed_official 87:085cde657901 911 /* Process Unlocked */
mbed_official 87:085cde657901 912 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 913
mbed_official 87:085cde657901 914 /* Enable Interrupts */
mbed_official 87:085cde657901 915 HASH->IMR = (HASH_IT_DINI | HASH_IT_DCI);
mbed_official 87:085cde657901 916
mbed_official 87:085cde657901 917 /* Return function status */
mbed_official 87:085cde657901 918 return HAL_OK;
mbed_official 87:085cde657901 919 }
mbed_official 87:085cde657901 920 if(__HAL_HASH_GET_FLAG(HASH_FLAG_DCIS))
mbed_official 87:085cde657901 921 {
mbed_official 87:085cde657901 922 /* Read the message digest */
mbed_official 87:085cde657901 923 HASHEx_GetDigest(hhash->pHashOutBuffPtr, 32);
mbed_official 87:085cde657901 924 if(hhash->HashInCount == 0)
mbed_official 87:085cde657901 925 {
mbed_official 87:085cde657901 926 /* Disable Interrupts */
mbed_official 87:085cde657901 927 HASH->IMR = 0;
mbed_official 87:085cde657901 928 /* Change the HASH state */
mbed_official 87:085cde657901 929 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 930 /* Call digest computation complete callback */
mbed_official 87:085cde657901 931 HAL_HASH_DgstCpltCallback(hhash);
mbed_official 87:085cde657901 932 }
mbed_official 87:085cde657901 933 }
mbed_official 87:085cde657901 934 if(__HAL_HASH_GET_FLAG(HASH_FLAG_DINIS))
mbed_official 87:085cde657901 935 {
mbed_official 87:085cde657901 936 if(hhash->HashInCount > 64)
mbed_official 87:085cde657901 937 {
mbed_official 87:085cde657901 938 inputaddr = (uint32_t)hhash->pHashInBuffPtr;
mbed_official 87:085cde657901 939 /* Write the Input block in the Data IN register */
mbed_official 87:085cde657901 940 for(buffercounter = 0; buffercounter < 64; buffercounter+=4)
mbed_official 87:085cde657901 941 {
mbed_official 87:085cde657901 942 HASH->DIN = *(uint32_t*)inputaddr;
mbed_official 87:085cde657901 943 inputaddr+=4;
mbed_official 87:085cde657901 944 }
mbed_official 87:085cde657901 945 if(hhash->HashITCounter == 0)
mbed_official 87:085cde657901 946 {
mbed_official 87:085cde657901 947 HASH->DIN = *(uint32_t*)inputaddr;
mbed_official 87:085cde657901 948
mbed_official 87:085cde657901 949 if(hhash->HashInCount >= 68)
mbed_official 87:085cde657901 950 {
mbed_official 87:085cde657901 951 /* Decrement buffer counter */
mbed_official 87:085cde657901 952 hhash->HashInCount -= 68;
mbed_official 87:085cde657901 953 hhash->pHashInBuffPtr+= 68;
mbed_official 87:085cde657901 954 }
mbed_official 87:085cde657901 955 else
mbed_official 87:085cde657901 956 {
mbed_official 87:085cde657901 957 hhash->HashInCount -= 64;
mbed_official 87:085cde657901 958 }
mbed_official 87:085cde657901 959 }
mbed_official 87:085cde657901 960 else
mbed_official 87:085cde657901 961 {
mbed_official 87:085cde657901 962 /* Decrement buffer counter */
mbed_official 87:085cde657901 963 hhash->HashInCount -= 64;
mbed_official 87:085cde657901 964 hhash->pHashInBuffPtr+= 64;
mbed_official 87:085cde657901 965 }
mbed_official 87:085cde657901 966 }
mbed_official 87:085cde657901 967 else
mbed_official 87:085cde657901 968 {
mbed_official 87:085cde657901 969 /* Get the buffer address */
mbed_official 87:085cde657901 970 inputaddr = (uint32_t)hhash->pHashInBuffPtr;
mbed_official 87:085cde657901 971 /* Get the buffer counter */
mbed_official 87:085cde657901 972 inputcounter = hhash->HashInCount;
mbed_official 87:085cde657901 973 /* Disable Interrupts */
mbed_official 87:085cde657901 974 HASH->IMR &= ~(HASH_IT_DINI);
mbed_official 87:085cde657901 975 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 976 __HAL_HASH_SET_NBVALIDBITS(inputcounter);
mbed_official 87:085cde657901 977
mbed_official 87:085cde657901 978 if((inputcounter > 4) && (inputcounter%4))
mbed_official 87:085cde657901 979 {
mbed_official 87:085cde657901 980 inputcounter = (inputcounter+4-inputcounter%4);
mbed_official 87:085cde657901 981 }
mbed_official 87:085cde657901 982
mbed_official 87:085cde657901 983 /* Write the Input block in the Data IN register */
mbed_official 87:085cde657901 984 for(buffercounter = 0; buffercounter < inputcounter/4; buffercounter++)
mbed_official 87:085cde657901 985 {
mbed_official 87:085cde657901 986 HASH->DIN = *(uint32_t*)inputaddr;
mbed_official 87:085cde657901 987 inputaddr+=4;
mbed_official 87:085cde657901 988 }
mbed_official 87:085cde657901 989 /* Start the digest calculation */
mbed_official 87:085cde657901 990 __HAL_HASH_START_DIGEST();
mbed_official 87:085cde657901 991 /* Reset buffer counter */
mbed_official 87:085cde657901 992 hhash->HashInCount = 0;
mbed_official 87:085cde657901 993 }
mbed_official 87:085cde657901 994 /* Call Input data transfer complete callback */
mbed_official 87:085cde657901 995 HAL_HASH_InCpltCallback(hhash);
mbed_official 87:085cde657901 996 }
mbed_official 87:085cde657901 997
mbed_official 87:085cde657901 998 /* Process Unlocked */
mbed_official 87:085cde657901 999 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1000
mbed_official 87:085cde657901 1001 /* Return function status */
mbed_official 87:085cde657901 1002 return HAL_OK;
mbed_official 87:085cde657901 1003 }
mbed_official 87:085cde657901 1004
mbed_official 87:085cde657901 1005 /**
mbed_official 87:085cde657901 1006 * @brief This function handles HASH interrupt request.
mbed_official 226:b062af740e40 1007 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1008 * the configuration information for HASH module
mbed_official 87:085cde657901 1009 * @retval None
mbed_official 87:085cde657901 1010 */
mbed_official 87:085cde657901 1011 void HAL_HASHEx_IRQHandler(HASH_HandleTypeDef *hhash)
mbed_official 87:085cde657901 1012 {
mbed_official 87:085cde657901 1013 switch(HASH->CR & HASH_CR_ALGO)
mbed_official 87:085cde657901 1014 {
mbed_official 87:085cde657901 1015
mbed_official 87:085cde657901 1016 case HASH_AlgoSelection_SHA224:
mbed_official 87:085cde657901 1017 HAL_HASHEx_SHA224_Start_IT(hhash, NULL, 0, NULL);
mbed_official 87:085cde657901 1018 break;
mbed_official 87:085cde657901 1019
mbed_official 87:085cde657901 1020 case HASH_AlgoSelection_SHA256:
mbed_official 87:085cde657901 1021 HAL_HASHEx_SHA256_Start_IT(hhash, NULL, 0, NULL);
mbed_official 87:085cde657901 1022 break;
mbed_official 87:085cde657901 1023
mbed_official 87:085cde657901 1024 default:
mbed_official 87:085cde657901 1025 break;
mbed_official 87:085cde657901 1026 }
mbed_official 87:085cde657901 1027 }
mbed_official 87:085cde657901 1028
mbed_official 87:085cde657901 1029 /**
mbed_official 87:085cde657901 1030 * @}
mbed_official 87:085cde657901 1031 */
mbed_official 87:085cde657901 1032
mbed_official 87:085cde657901 1033 /** @defgroup HASHEx_Group4 HASH processing functions using DMA mode
mbed_official 87:085cde657901 1034 * @brief processing functions using DMA mode.
mbed_official 87:085cde657901 1035 *
mbed_official 87:085cde657901 1036 @verbatim
mbed_official 87:085cde657901 1037 ===============================================================================
mbed_official 87:085cde657901 1038 ##### HASH processing using DMA functions #####
mbed_official 87:085cde657901 1039 ===============================================================================
mbed_official 87:085cde657901 1040 [..] This section provides functions allowing to calculate in DMA mode
mbed_official 87:085cde657901 1041 the hash value using one of the following algorithms:
mbed_official 87:085cde657901 1042 (+) SHA224
mbed_official 87:085cde657901 1043 (+) SHA256
mbed_official 87:085cde657901 1044
mbed_official 87:085cde657901 1045 @endverbatim
mbed_official 87:085cde657901 1046 * @{
mbed_official 87:085cde657901 1047 */
mbed_official 87:085cde657901 1048
mbed_official 87:085cde657901 1049
mbed_official 87:085cde657901 1050 /**
mbed_official 87:085cde657901 1051 * @brief Initializes the HASH peripheral in SHA224 mode then enables DMA to
mbed_official 87:085cde657901 1052 control data transfer. Use HAL_HASH_SHA224_Finish() to get the digest.
mbed_official 226:b062af740e40 1053 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1054 * the configuration information for HASH module
mbed_official 87:085cde657901 1055 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 1056 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 1057 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 1058 * @retval HAL status
mbed_official 87:085cde657901 1059 */
mbed_official 87:085cde657901 1060 HAL_StatusTypeDef HAL_HASHEx_SHA224_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
mbed_official 87:085cde657901 1061 {
mbed_official 87:085cde657901 1062 uint32_t inputaddr = (uint32_t)pInBuffer;
mbed_official 87:085cde657901 1063
mbed_official 87:085cde657901 1064 /* Process Locked */
mbed_official 87:085cde657901 1065 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 1066
mbed_official 87:085cde657901 1067 /* Change the HASH state */
mbed_official 87:085cde657901 1068 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 1069
mbed_official 87:085cde657901 1070 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 1071 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 1072 {
mbed_official 87:085cde657901 1073 /* Select the SHA224 mode and reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 1074 the message digest of a new message */
mbed_official 87:085cde657901 1075 HASH->CR |= HASH_AlgoSelection_SHA224 | HASH_CR_INIT;
mbed_official 87:085cde657901 1076 }
mbed_official 87:085cde657901 1077
mbed_official 87:085cde657901 1078 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 1079 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 1080
mbed_official 87:085cde657901 1081 /* Set the phase */
mbed_official 87:085cde657901 1082 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 1083
mbed_official 87:085cde657901 1084 /* Set the HASH DMA transfer complete callback */
mbed_official 87:085cde657901 1085 hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt;
mbed_official 87:085cde657901 1086 /* Set the DMA error callback */
mbed_official 87:085cde657901 1087 hhash->hdmain->XferErrorCallback = HASHEx_DMAError;
mbed_official 87:085cde657901 1088
mbed_official 87:085cde657901 1089 /* Enable the DMA In DMA Stream */
mbed_official 87:085cde657901 1090 HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4 ? (Size+3)/4:Size/4));
mbed_official 87:085cde657901 1091
mbed_official 87:085cde657901 1092 /* Enable DMA requests */
mbed_official 87:085cde657901 1093 HASH->CR |= (HASH_CR_DMAE);
mbed_official 87:085cde657901 1094
mbed_official 87:085cde657901 1095 /* Process Unlocked */
mbed_official 87:085cde657901 1096 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1097
mbed_official 87:085cde657901 1098 /* Return function status */
mbed_official 87:085cde657901 1099 return HAL_OK;
mbed_official 87:085cde657901 1100 }
mbed_official 87:085cde657901 1101
mbed_official 87:085cde657901 1102 /**
mbed_official 87:085cde657901 1103 * @brief Returns the computed digest in SHA224
mbed_official 226:b062af740e40 1104 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1105 * the configuration information for HASH module
mbed_official 87:085cde657901 1106 * @param pOutBuffer: Pointer to the computed digest. Its size must be 28 bytes.
mbed_official 226:b062af740e40 1107 * @param Timeout: Timeout value
mbed_official 87:085cde657901 1108 * @retval HAL status
mbed_official 87:085cde657901 1109 */
mbed_official 87:085cde657901 1110 HAL_StatusTypeDef HAL_HASHEx_SHA224_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout)
mbed_official 87:085cde657901 1111 {
mbed_official 87:085cde657901 1112 uint32_t timeout = 0;
mbed_official 87:085cde657901 1113
mbed_official 87:085cde657901 1114 /* Process Locked */
mbed_official 87:085cde657901 1115 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 1116
mbed_official 87:085cde657901 1117 /* Change HASH peripheral state */
mbed_official 87:085cde657901 1118 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 1119
mbed_official 87:085cde657901 1120 /* Get timeout */
mbed_official 87:085cde657901 1121 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 1122
mbed_official 87:085cde657901 1123 while(HAL_IS_BIT_CLR(HASH->SR, HASH_FLAG_DCIS))
mbed_official 87:085cde657901 1124 {
mbed_official 87:085cde657901 1125 /* Check for the Timeout */
mbed_official 87:085cde657901 1126 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 1127 {
mbed_official 87:085cde657901 1128 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 1129 {
mbed_official 87:085cde657901 1130 /* Change state */
mbed_official 87:085cde657901 1131 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 1132
mbed_official 87:085cde657901 1133 /* Process Unlocked */
mbed_official 87:085cde657901 1134 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1135
mbed_official 87:085cde657901 1136 return HAL_TIMEOUT;
mbed_official 87:085cde657901 1137 }
mbed_official 87:085cde657901 1138 }
mbed_official 87:085cde657901 1139 }
mbed_official 87:085cde657901 1140
mbed_official 87:085cde657901 1141 /* Read the message digest */
mbed_official 87:085cde657901 1142 HASHEx_GetDigest(pOutBuffer, 28);
mbed_official 87:085cde657901 1143
mbed_official 87:085cde657901 1144 /* Change HASH peripheral state */
mbed_official 87:085cde657901 1145 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 1146
mbed_official 87:085cde657901 1147 /* Process Unlocked */
mbed_official 87:085cde657901 1148 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1149
mbed_official 87:085cde657901 1150 /* Return function status */
mbed_official 87:085cde657901 1151 return HAL_OK;
mbed_official 87:085cde657901 1152 }
mbed_official 87:085cde657901 1153
mbed_official 87:085cde657901 1154 /**
mbed_official 87:085cde657901 1155 * @brief Initializes the HASH peripheral in SHA256 mode then enables DMA to
mbed_official 87:085cde657901 1156 control data transfer. Use HAL_HASH_SHA256_Finish() to get the digest.
mbed_official 226:b062af740e40 1157 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1158 * the configuration information for HASH module
mbed_official 87:085cde657901 1159 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 1160 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 1161 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 1162 * @retval HAL status
mbed_official 87:085cde657901 1163 */
mbed_official 87:085cde657901 1164 HAL_StatusTypeDef HAL_HASHEx_SHA256_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
mbed_official 87:085cde657901 1165 {
mbed_official 87:085cde657901 1166 uint32_t inputaddr = (uint32_t)pInBuffer;
mbed_official 87:085cde657901 1167
mbed_official 87:085cde657901 1168 /* Process Locked */
mbed_official 87:085cde657901 1169 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 1170
mbed_official 87:085cde657901 1171 /* Change the HASH state */
mbed_official 87:085cde657901 1172 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 1173
mbed_official 87:085cde657901 1174 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 1175 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 1176 {
mbed_official 87:085cde657901 1177 /* Select the SHA256 mode and reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 1178 the message digest of a new message */
mbed_official 87:085cde657901 1179 HASH->CR |= HASH_AlgoSelection_SHA256 | HASH_CR_INIT;
mbed_official 87:085cde657901 1180 }
mbed_official 87:085cde657901 1181
mbed_official 87:085cde657901 1182 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 1183 __HAL_HASH_SET_NBVALIDBITS(Size);
mbed_official 87:085cde657901 1184
mbed_official 87:085cde657901 1185 /* Set the phase */
mbed_official 87:085cde657901 1186 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 1187
mbed_official 87:085cde657901 1188 /* Set the HASH DMA transfer complete callback */
mbed_official 87:085cde657901 1189 hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt;
mbed_official 87:085cde657901 1190 /* Set the DMA error callback */
mbed_official 87:085cde657901 1191 hhash->hdmain->XferErrorCallback = HASHEx_DMAError;
mbed_official 87:085cde657901 1192
mbed_official 87:085cde657901 1193 /* Enable the DMA In DMA Stream */
mbed_official 87:085cde657901 1194 HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4 ? (Size+3)/4:Size/4));
mbed_official 87:085cde657901 1195
mbed_official 87:085cde657901 1196 /* Enable DMA requests */
mbed_official 87:085cde657901 1197 HASH->CR |= (HASH_CR_DMAE);
mbed_official 87:085cde657901 1198
mbed_official 87:085cde657901 1199 /* Process UnLock */
mbed_official 87:085cde657901 1200 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1201
mbed_official 87:085cde657901 1202 /* Return function status */
mbed_official 87:085cde657901 1203 return HAL_OK;
mbed_official 87:085cde657901 1204 }
mbed_official 87:085cde657901 1205
mbed_official 87:085cde657901 1206 /**
mbed_official 87:085cde657901 1207 * @brief Returns the computed digest in SHA256.
mbed_official 226:b062af740e40 1208 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1209 * the configuration information for HASH module
mbed_official 87:085cde657901 1210 * @param pOutBuffer: Pointer to the computed digest. Its size must be 32 bytes.
mbed_official 226:b062af740e40 1211 * @param Timeout: Timeout value
mbed_official 87:085cde657901 1212 * @retval HAL status
mbed_official 87:085cde657901 1213 */
mbed_official 87:085cde657901 1214 HAL_StatusTypeDef HAL_HASHEx_SHA256_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout)
mbed_official 87:085cde657901 1215 {
mbed_official 87:085cde657901 1216 uint32_t timeout = 0;
mbed_official 87:085cde657901 1217
mbed_official 87:085cde657901 1218 /* Process Locked */
mbed_official 87:085cde657901 1219 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 1220
mbed_official 87:085cde657901 1221 /* Change HASH peripheral state */
mbed_official 87:085cde657901 1222 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 1223
mbed_official 87:085cde657901 1224 /* Get timeout */
mbed_official 87:085cde657901 1225 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 1226
mbed_official 87:085cde657901 1227 while(HAL_IS_BIT_CLR(HASH->SR, HASH_FLAG_DCIS))
mbed_official 87:085cde657901 1228 {
mbed_official 87:085cde657901 1229 /* Check for the Timeout */
mbed_official 87:085cde657901 1230 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 1231 {
mbed_official 87:085cde657901 1232 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 1233 {
mbed_official 87:085cde657901 1234 /* Change state */
mbed_official 87:085cde657901 1235 hhash->State = HAL_HASH_STATE_TIMEOUT;
mbed_official 87:085cde657901 1236
mbed_official 87:085cde657901 1237 /* Process Unlocked */
mbed_official 87:085cde657901 1238 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1239
mbed_official 87:085cde657901 1240 return HAL_TIMEOUT;
mbed_official 87:085cde657901 1241 }
mbed_official 87:085cde657901 1242 }
mbed_official 87:085cde657901 1243 }
mbed_official 87:085cde657901 1244
mbed_official 87:085cde657901 1245 /* Read the message digest */
mbed_official 87:085cde657901 1246 HASHEx_GetDigest(pOutBuffer, 32);
mbed_official 87:085cde657901 1247
mbed_official 87:085cde657901 1248 /* Change HASH peripheral state */
mbed_official 87:085cde657901 1249 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 1250
mbed_official 87:085cde657901 1251 /* Process Unlocked */
mbed_official 87:085cde657901 1252 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1253
mbed_official 87:085cde657901 1254 /* Return function status */
mbed_official 87:085cde657901 1255 return HAL_OK;
mbed_official 87:085cde657901 1256 }
mbed_official 87:085cde657901 1257
mbed_official 87:085cde657901 1258
mbed_official 87:085cde657901 1259 /**
mbed_official 87:085cde657901 1260 * @}
mbed_official 87:085cde657901 1261 */
mbed_official 87:085cde657901 1262 /** @defgroup HASHEx_Group5 HMAC processing functions using DMA mode
mbed_official 87:085cde657901 1263 * @brief HMAC processing functions using DMA mode .
mbed_official 87:085cde657901 1264 *
mbed_official 87:085cde657901 1265 @verbatim
mbed_official 87:085cde657901 1266 ===============================================================================
mbed_official 87:085cde657901 1267 ##### HMAC processing using DMA functions #####
mbed_official 87:085cde657901 1268 ===============================================================================
mbed_official 87:085cde657901 1269 [..] This section provides functions allowing to calculate in DMA mode
mbed_official 87:085cde657901 1270 the HMAC value using one of the following algorithms:
mbed_official 87:085cde657901 1271 (+) SHA224
mbed_official 87:085cde657901 1272 (+) SHA256
mbed_official 87:085cde657901 1273
mbed_official 87:085cde657901 1274 @endverbatim
mbed_official 87:085cde657901 1275 * @{
mbed_official 87:085cde657901 1276 */
mbed_official 87:085cde657901 1277
mbed_official 87:085cde657901 1278 /**
mbed_official 87:085cde657901 1279 * @brief Initializes the HASH peripheral in HMAC SHA224 mode
mbed_official 87:085cde657901 1280 * then enables DMA to control data transfer.
mbed_official 226:b062af740e40 1281 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1282 * the configuration information for HASH module
mbed_official 87:085cde657901 1283 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 1284 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 1285 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 1286 * @retval HAL status
mbed_official 87:085cde657901 1287 */
mbed_official 87:085cde657901 1288 HAL_StatusTypeDef HAL_HMACEx_SHA224_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
mbed_official 87:085cde657901 1289 {
mbed_official 87:085cde657901 1290 uint32_t inputaddr;
mbed_official 87:085cde657901 1291
mbed_official 87:085cde657901 1292 /* Process Locked */
mbed_official 87:085cde657901 1293 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 1294
mbed_official 87:085cde657901 1295 /* Change the HASH state */
mbed_official 87:085cde657901 1296 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 1297
mbed_official 87:085cde657901 1298 /* Save buffer pointer and size in handle */
mbed_official 87:085cde657901 1299 hhash->pHashInBuffPtr = pInBuffer;
mbed_official 87:085cde657901 1300 hhash->HashBuffSize = Size;
mbed_official 87:085cde657901 1301 hhash->HashInCount = 0;
mbed_official 87:085cde657901 1302
mbed_official 87:085cde657901 1303 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 1304 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 1305 {
mbed_official 87:085cde657901 1306 /* Check if key size is greater than 64 bytes */
mbed_official 87:085cde657901 1307 if(hhash->Init.KeySize > 64)
mbed_official 87:085cde657901 1308 {
mbed_official 87:085cde657901 1309 /* Select the HMAC SHA224 mode */
mbed_official 87:085cde657901 1310 HASH->CR |= (HASH_AlgoSelection_SHA224 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey | HASH_CR_INIT);
mbed_official 87:085cde657901 1311 }
mbed_official 87:085cde657901 1312 else
mbed_official 87:085cde657901 1313 {
mbed_official 87:085cde657901 1314 /* Select the HMAC SHA224 mode */
mbed_official 87:085cde657901 1315 HASH->CR |= (HASH_AlgoSelection_SHA224 | HASH_AlgoMode_HMAC | HASH_CR_INIT);
mbed_official 87:085cde657901 1316 }
mbed_official 87:085cde657901 1317 }
mbed_official 87:085cde657901 1318
mbed_official 87:085cde657901 1319 /* Set the phase */
mbed_official 87:085cde657901 1320 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 1321
mbed_official 87:085cde657901 1322 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 1323 __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
mbed_official 87:085cde657901 1324
mbed_official 87:085cde657901 1325 /* Get the key address */
mbed_official 87:085cde657901 1326 inputaddr = (uint32_t)(hhash->Init.pKey);
mbed_official 87:085cde657901 1327
mbed_official 87:085cde657901 1328 /* Set the HASH DMA transfer complete callback */
mbed_official 87:085cde657901 1329 hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt;
mbed_official 87:085cde657901 1330 /* Set the DMA error callback */
mbed_official 87:085cde657901 1331 hhash->hdmain->XferErrorCallback = HASHEx_DMAError;
mbed_official 87:085cde657901 1332
mbed_official 87:085cde657901 1333 /* Enable the DMA In DMA Stream */
mbed_official 87:085cde657901 1334 HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4 ? (hhash->Init.KeySize+3)/4:hhash->Init.KeySize/4));
mbed_official 87:085cde657901 1335 /* Enable DMA requests */
mbed_official 87:085cde657901 1336 HASH->CR |= (HASH_CR_DMAE);
mbed_official 87:085cde657901 1337
mbed_official 87:085cde657901 1338 /* Process Unlocked */
mbed_official 87:085cde657901 1339 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1340
mbed_official 87:085cde657901 1341 /* Return function status */
mbed_official 87:085cde657901 1342 return HAL_OK;
mbed_official 87:085cde657901 1343 }
mbed_official 87:085cde657901 1344
mbed_official 87:085cde657901 1345 /**
mbed_official 87:085cde657901 1346 * @brief Initializes the HASH peripheral in HMAC SHA256 mode
mbed_official 87:085cde657901 1347 * then enables DMA to control data transfer.
mbed_official 226:b062af740e40 1348 * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1349 * the configuration information for HASH module
mbed_official 87:085cde657901 1350 * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
mbed_official 87:085cde657901 1351 * @param Size: Length of the input buffer in bytes.
mbed_official 87:085cde657901 1352 * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
mbed_official 87:085cde657901 1353 * @retval HAL status
mbed_official 87:085cde657901 1354 */
mbed_official 87:085cde657901 1355 HAL_StatusTypeDef HAL_HMACEx_SHA256_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
mbed_official 87:085cde657901 1356 {
mbed_official 87:085cde657901 1357 uint32_t inputaddr;
mbed_official 87:085cde657901 1358
mbed_official 87:085cde657901 1359 /* Process Locked */
mbed_official 87:085cde657901 1360 __HAL_LOCK(hhash);
mbed_official 87:085cde657901 1361
mbed_official 87:085cde657901 1362 /* Change the HASH state */
mbed_official 87:085cde657901 1363 hhash->State = HAL_HASH_STATE_BUSY;
mbed_official 87:085cde657901 1364
mbed_official 87:085cde657901 1365 /* Save buffer pointer and size in handle */
mbed_official 87:085cde657901 1366 hhash->pHashInBuffPtr = pInBuffer;
mbed_official 87:085cde657901 1367 hhash->HashBuffSize = Size;
mbed_official 87:085cde657901 1368 hhash->HashInCount = 0;
mbed_official 87:085cde657901 1369
mbed_official 87:085cde657901 1370 /* Check if initialization phase has already been performed */
mbed_official 87:085cde657901 1371 if(hhash->Phase == HAL_HASH_PHASE_READY)
mbed_official 87:085cde657901 1372 {
mbed_official 87:085cde657901 1373 /* Check if key size is greater than 64 bytes */
mbed_official 87:085cde657901 1374 if(hhash->Init.KeySize > 64)
mbed_official 87:085cde657901 1375 {
mbed_official 87:085cde657901 1376 /* Select the HMAC SHA256 mode */
mbed_official 87:085cde657901 1377 HASH->CR |= (HASH_AlgoSelection_SHA256 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey);
mbed_official 87:085cde657901 1378 }
mbed_official 87:085cde657901 1379 else
mbed_official 87:085cde657901 1380 {
mbed_official 87:085cde657901 1381 /* Select the HMAC SHA256 mode */
mbed_official 87:085cde657901 1382 HASH->CR |= (HASH_AlgoSelection_SHA256 | HASH_AlgoMode_HMAC);
mbed_official 87:085cde657901 1383 }
mbed_official 87:085cde657901 1384 /* Reset the HASH processor core, so that the HASH will be ready to compute
mbed_official 87:085cde657901 1385 the message digest of a new message */
mbed_official 87:085cde657901 1386 HASH->CR |= HASH_CR_INIT;
mbed_official 87:085cde657901 1387 }
mbed_official 87:085cde657901 1388
mbed_official 87:085cde657901 1389 /* Set the phase */
mbed_official 87:085cde657901 1390 hhash->Phase = HAL_HASH_PHASE_PROCESS;
mbed_official 87:085cde657901 1391
mbed_official 87:085cde657901 1392 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 1393 __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
mbed_official 87:085cde657901 1394
mbed_official 87:085cde657901 1395 /* Get the key address */
mbed_official 87:085cde657901 1396 inputaddr = (uint32_t)(hhash->Init.pKey);
mbed_official 87:085cde657901 1397
mbed_official 87:085cde657901 1398 /* Set the HASH DMA transfer complete callback */
mbed_official 87:085cde657901 1399 hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt;
mbed_official 87:085cde657901 1400 /* Set the DMA error callback */
mbed_official 87:085cde657901 1401 hhash->hdmain->XferErrorCallback = HASHEx_DMAError;
mbed_official 87:085cde657901 1402
mbed_official 87:085cde657901 1403 /* Enable the DMA In DMA Stream */
mbed_official 87:085cde657901 1404 HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4 ? (hhash->Init.KeySize+3)/4:hhash->Init.KeySize/4));
mbed_official 87:085cde657901 1405 /* Enable DMA requests */
mbed_official 87:085cde657901 1406 HASH->CR |= (HASH_CR_DMAE);
mbed_official 87:085cde657901 1407
mbed_official 87:085cde657901 1408 /* Process Unlocked */
mbed_official 87:085cde657901 1409 __HAL_UNLOCK(hhash);
mbed_official 87:085cde657901 1410
mbed_official 87:085cde657901 1411 /* Return function status */
mbed_official 87:085cde657901 1412 return HAL_OK;
mbed_official 87:085cde657901 1413 }
mbed_official 87:085cde657901 1414
mbed_official 87:085cde657901 1415 /**
mbed_official 87:085cde657901 1416 * @}
mbed_official 87:085cde657901 1417 */
mbed_official 87:085cde657901 1418
mbed_official 87:085cde657901 1419 /**
mbed_official 87:085cde657901 1420 * @brief Writes the input buffer in data register.
mbed_official 87:085cde657901 1421 * @param pInBuffer: Pointer to input buffer
mbed_official 87:085cde657901 1422 * @param Size: The size of input buffer
mbed_official 87:085cde657901 1423 * @retval None
mbed_official 87:085cde657901 1424 */
mbed_official 87:085cde657901 1425 static void HASHEx_WriteData(uint8_t *pInBuffer, uint32_t Size)
mbed_official 87:085cde657901 1426 {
mbed_official 87:085cde657901 1427 uint32_t buffercounter;
mbed_official 87:085cde657901 1428 uint32_t inputaddr = (uint32_t) pInBuffer;
mbed_official 87:085cde657901 1429
mbed_official 87:085cde657901 1430 for(buffercounter = 0; buffercounter < Size; buffercounter+=4)
mbed_official 87:085cde657901 1431 {
mbed_official 87:085cde657901 1432 HASH->DIN = *(uint32_t*)inputaddr;
mbed_official 87:085cde657901 1433 inputaddr+=4;
mbed_official 87:085cde657901 1434 }
mbed_official 87:085cde657901 1435 }
mbed_official 87:085cde657901 1436
mbed_official 87:085cde657901 1437 /**
mbed_official 87:085cde657901 1438 * @brief Provides the message digest result.
mbed_official 87:085cde657901 1439 * @param pMsgDigest: Pointer to the message digest
mbed_official 87:085cde657901 1440 * @param Size: The size of the message digest in bytes
mbed_official 87:085cde657901 1441 * @retval None
mbed_official 87:085cde657901 1442 */
mbed_official 87:085cde657901 1443 static void HASHEx_GetDigest(uint8_t *pMsgDigest, uint8_t Size)
mbed_official 87:085cde657901 1444 {
mbed_official 87:085cde657901 1445 uint32_t msgdigest = (uint32_t)pMsgDigest;
mbed_official 87:085cde657901 1446
mbed_official 87:085cde657901 1447 switch(Size)
mbed_official 87:085cde657901 1448 {
mbed_official 87:085cde657901 1449 case 16:
mbed_official 87:085cde657901 1450 /* Read the message digest */
mbed_official 87:085cde657901 1451 *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
mbed_official 87:085cde657901 1452 msgdigest+=4;
mbed_official 87:085cde657901 1453 *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
mbed_official 87:085cde657901 1454 msgdigest+=4;
mbed_official 87:085cde657901 1455 *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
mbed_official 87:085cde657901 1456 msgdigest+=4;
mbed_official 87:085cde657901 1457 *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
mbed_official 87:085cde657901 1458 break;
mbed_official 87:085cde657901 1459 case 20:
mbed_official 87:085cde657901 1460 /* Read the message digest */
mbed_official 87:085cde657901 1461 *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
mbed_official 87:085cde657901 1462 msgdigest+=4;
mbed_official 87:085cde657901 1463 *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
mbed_official 87:085cde657901 1464 msgdigest+=4;
mbed_official 87:085cde657901 1465 *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
mbed_official 87:085cde657901 1466 msgdigest+=4;
mbed_official 87:085cde657901 1467 *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
mbed_official 87:085cde657901 1468 msgdigest+=4;
mbed_official 87:085cde657901 1469 *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]);
mbed_official 87:085cde657901 1470 break;
mbed_official 87:085cde657901 1471 case 28:
mbed_official 87:085cde657901 1472 /* Read the message digest */
mbed_official 87:085cde657901 1473 *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
mbed_official 87:085cde657901 1474 msgdigest+=4;
mbed_official 87:085cde657901 1475 *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
mbed_official 87:085cde657901 1476 msgdigest+=4;
mbed_official 87:085cde657901 1477 *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
mbed_official 87:085cde657901 1478 msgdigest+=4;
mbed_official 87:085cde657901 1479 *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
mbed_official 87:085cde657901 1480 msgdigest+=4;
mbed_official 87:085cde657901 1481 *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]);
mbed_official 87:085cde657901 1482 msgdigest+=4;
mbed_official 87:085cde657901 1483 *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5]);
mbed_official 87:085cde657901 1484 msgdigest+=4;
mbed_official 87:085cde657901 1485 *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6]);
mbed_official 87:085cde657901 1486 break;
mbed_official 87:085cde657901 1487 case 32:
mbed_official 87:085cde657901 1488 /* Read the message digest */
mbed_official 87:085cde657901 1489 *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
mbed_official 87:085cde657901 1490 msgdigest+=4;
mbed_official 87:085cde657901 1491 *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
mbed_official 87:085cde657901 1492 msgdigest+=4;
mbed_official 87:085cde657901 1493 *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
mbed_official 87:085cde657901 1494 msgdigest+=4;
mbed_official 87:085cde657901 1495 *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
mbed_official 87:085cde657901 1496 msgdigest+=4;
mbed_official 87:085cde657901 1497 *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]);
mbed_official 87:085cde657901 1498 msgdigest+=4;
mbed_official 87:085cde657901 1499 *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5]);
mbed_official 87:085cde657901 1500 msgdigest+=4;
mbed_official 87:085cde657901 1501 *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6]);
mbed_official 87:085cde657901 1502 msgdigest+=4;
mbed_official 87:085cde657901 1503 *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[7]);
mbed_official 87:085cde657901 1504 break;
mbed_official 87:085cde657901 1505 default:
mbed_official 87:085cde657901 1506 break;
mbed_official 87:085cde657901 1507 }
mbed_official 87:085cde657901 1508 }
mbed_official 87:085cde657901 1509
mbed_official 87:085cde657901 1510 /**
mbed_official 87:085cde657901 1511 * @brief DMA HASH Input Data complete callback.
mbed_official 87:085cde657901 1512 * @param hdma: DMA handle
mbed_official 87:085cde657901 1513 * @retval None
mbed_official 87:085cde657901 1514 */
mbed_official 87:085cde657901 1515 static void HASHEx_DMAXferCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1516 {
mbed_official 87:085cde657901 1517 HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 87:085cde657901 1518 uint32_t inputaddr = 0;
mbed_official 87:085cde657901 1519 uint32_t buffersize = 0;
mbed_official 87:085cde657901 1520
mbed_official 87:085cde657901 1521 if((HASH->CR & HASH_CR_MODE) != HASH_CR_MODE)
mbed_official 87:085cde657901 1522 {
mbed_official 87:085cde657901 1523 /* Disable the DMA transfer */
mbed_official 87:085cde657901 1524 HASH->CR &= (uint32_t)(~HASH_CR_DMAE);
mbed_official 87:085cde657901 1525
mbed_official 87:085cde657901 1526 /* Change HASH peripheral state */
mbed_official 87:085cde657901 1527 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 1528
mbed_official 87:085cde657901 1529 /* Call Input data transfer complete callback */
mbed_official 87:085cde657901 1530 HAL_HASH_InCpltCallback(hhash);
mbed_official 87:085cde657901 1531 }
mbed_official 87:085cde657901 1532 else
mbed_official 87:085cde657901 1533 {
mbed_official 87:085cde657901 1534 /* Increment Interrupt counter */
mbed_official 87:085cde657901 1535 hhash->HashInCount++;
mbed_official 87:085cde657901 1536 /* Disable the DMA transfer before starting the next transfer */
mbed_official 87:085cde657901 1537 HASH->CR &= (uint32_t)(~HASH_CR_DMAE);
mbed_official 87:085cde657901 1538
mbed_official 87:085cde657901 1539 if(hhash->HashInCount <= 2)
mbed_official 87:085cde657901 1540 {
mbed_official 87:085cde657901 1541 /* In case HashInCount = 1, set the DMA to transfer data to HASH DIN register */
mbed_official 87:085cde657901 1542 if(hhash->HashInCount == 1)
mbed_official 87:085cde657901 1543 {
mbed_official 87:085cde657901 1544 inputaddr = (uint32_t)hhash->pHashInBuffPtr;
mbed_official 87:085cde657901 1545 buffersize = hhash->HashBuffSize;
mbed_official 87:085cde657901 1546 }
mbed_official 87:085cde657901 1547 /* In case HashInCount = 2, set the DMA to transfer key to HASH DIN register */
mbed_official 87:085cde657901 1548 else if(hhash->HashInCount == 2)
mbed_official 87:085cde657901 1549 {
mbed_official 87:085cde657901 1550 inputaddr = (uint32_t)hhash->Init.pKey;
mbed_official 87:085cde657901 1551 buffersize = hhash->Init.KeySize;
mbed_official 87:085cde657901 1552 }
mbed_official 87:085cde657901 1553 /* Configure the number of valid bits in last word of the message */
mbed_official 87:085cde657901 1554 HASH->STR |= 8 * (buffersize % 4);
mbed_official 87:085cde657901 1555
mbed_official 87:085cde657901 1556 /* Set the HASH DMA transfer complete */
mbed_official 87:085cde657901 1557 hhash->hdmain->XferCpltCallback = HASHEx_DMAXferCplt;
mbed_official 87:085cde657901 1558
mbed_official 87:085cde657901 1559 /* Enable the DMA In DMA Stream */
mbed_official 87:085cde657901 1560 HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (buffersize%4 ? (buffersize+3)/4:buffersize/4));
mbed_official 87:085cde657901 1561
mbed_official 87:085cde657901 1562 /* Enable DMA requests */
mbed_official 87:085cde657901 1563 HASH->CR |= (HASH_CR_DMAE);
mbed_official 87:085cde657901 1564 }
mbed_official 87:085cde657901 1565 else
mbed_official 87:085cde657901 1566 {
mbed_official 87:085cde657901 1567 /* Disable the DMA transfer */
mbed_official 87:085cde657901 1568 HASH->CR &= (uint32_t)(~HASH_CR_DMAE);
mbed_official 87:085cde657901 1569
mbed_official 87:085cde657901 1570 /* Reset the InCount */
mbed_official 87:085cde657901 1571 hhash->HashInCount = 0;
mbed_official 87:085cde657901 1572
mbed_official 87:085cde657901 1573 /* Change HASH peripheral state */
mbed_official 87:085cde657901 1574 hhash->State = HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 1575
mbed_official 87:085cde657901 1576 /* Call Input data transfer complete callback */
mbed_official 87:085cde657901 1577 HAL_HASH_InCpltCallback(hhash);
mbed_official 87:085cde657901 1578 }
mbed_official 87:085cde657901 1579 }
mbed_official 87:085cde657901 1580 }
mbed_official 87:085cde657901 1581
mbed_official 87:085cde657901 1582 /**
mbed_official 87:085cde657901 1583 * @brief DMA HASH communication error callback.
mbed_official 87:085cde657901 1584 * @param hdma: DMA handle
mbed_official 87:085cde657901 1585 * @retval None
mbed_official 87:085cde657901 1586 */
mbed_official 87:085cde657901 1587 static void HASHEx_DMAError(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1588 {
mbed_official 87:085cde657901 1589 HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 87:085cde657901 1590 hhash->State= HAL_HASH_STATE_READY;
mbed_official 87:085cde657901 1591 HAL_HASH_ErrorCallback(hhash);
mbed_official 87:085cde657901 1592 }
mbed_official 87:085cde657901 1593
mbed_official 87:085cde657901 1594
mbed_official 87:085cde657901 1595 /**
mbed_official 87:085cde657901 1596 * @}
mbed_official 87:085cde657901 1597 */
mbed_official 87:085cde657901 1598 #endif /* STM32F437xx || STM32F439xx */
mbed_official 87:085cde657901 1599
mbed_official 87:085cde657901 1600 #endif /* HAL_HASH_MODULE_ENABLED */
mbed_official 87:085cde657901 1601 /**
mbed_official 87:085cde657901 1602 * @}
mbed_official 87:085cde657901 1603 */
mbed_official 87:085cde657901 1604
mbed_official 87:085cde657901 1605 /**
mbed_official 87:085cde657901 1606 * @}
mbed_official 87:085cde657901 1607 */
mbed_official 87:085cde657901 1608
mbed_official 87:085cde657901 1609 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/