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targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_cryp_ex.c@0:e87aa4c49e95, 2019-06-04 (annotated)
- Committer:
- phungductung
- Date:
- Tue Jun 04 21:51:46 2019 +0000
- Revision:
- 0:e87aa4c49e95
libray
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
phungductung | 0:e87aa4c49e95 | 1 | /** |
phungductung | 0:e87aa4c49e95 | 2 | ****************************************************************************** |
phungductung | 0:e87aa4c49e95 | 3 | * @file stm32f7xx_hal_cryp_ex.c |
phungductung | 0:e87aa4c49e95 | 4 | * @author MCD Application Team |
phungductung | 0:e87aa4c49e95 | 5 | * @version V1.0.4 |
phungductung | 0:e87aa4c49e95 | 6 | * @date 09-December-2015 |
phungductung | 0:e87aa4c49e95 | 7 | * @brief Extended CRYP HAL module driver |
phungductung | 0:e87aa4c49e95 | 8 | * This file provides firmware functions to manage the following |
phungductung | 0:e87aa4c49e95 | 9 | * functionalities of CRYP extension peripheral: |
phungductung | 0:e87aa4c49e95 | 10 | * + Extended AES processing functions |
phungductung | 0:e87aa4c49e95 | 11 | * |
phungductung | 0:e87aa4c49e95 | 12 | @verbatim |
phungductung | 0:e87aa4c49e95 | 13 | ============================================================================== |
phungductung | 0:e87aa4c49e95 | 14 | ##### How to use this driver ##### |
phungductung | 0:e87aa4c49e95 | 15 | ============================================================================== |
phungductung | 0:e87aa4c49e95 | 16 | [..] |
phungductung | 0:e87aa4c49e95 | 17 | The CRYP Extension HAL driver can be used as follows: |
phungductung | 0:e87aa4c49e95 | 18 | (#)Initialize the CRYP low level resources by implementing the HAL_CRYP_MspInit(): |
phungductung | 0:e87aa4c49e95 | 19 | (##) Enable the CRYP interface clock using __HAL_RCC_CRYP_CLK_ENABLE() |
phungductung | 0:e87aa4c49e95 | 20 | (##) In case of using interrupts (e.g. HAL_CRYPEx_AESGCM_Encrypt_IT()) |
phungductung | 0:e87aa4c49e95 | 21 | (+++) Configure the CRYP interrupt priority using HAL_NVIC_SetPriority() |
phungductung | 0:e87aa4c49e95 | 22 | (+++) Enable the CRYP IRQ handler using HAL_NVIC_EnableIRQ() |
phungductung | 0:e87aa4c49e95 | 23 | (+++) In CRYP IRQ handler, call HAL_CRYP_IRQHandler() |
phungductung | 0:e87aa4c49e95 | 24 | (##) In case of using DMA to control data transfer (e.g. HAL_AES_ECB_Encrypt_DMA()) |
phungductung | 0:e87aa4c49e95 | 25 | (+++) Enable the DMAx interface clock using __DMAx_CLK_ENABLE() |
phungductung | 0:e87aa4c49e95 | 26 | (+++) Configure and enable two DMA streams one for managing data transfer from |
phungductung | 0:e87aa4c49e95 | 27 | memory to peripheral (input stream) and another stream for managing data |
phungductung | 0:e87aa4c49e95 | 28 | transfer from peripheral to memory (output stream) |
phungductung | 0:e87aa4c49e95 | 29 | (+++) Associate the initialized DMA handle to the CRYP DMA handle |
phungductung | 0:e87aa4c49e95 | 30 | using __HAL_LINKDMA() |
phungductung | 0:e87aa4c49e95 | 31 | (+++) Configure the priority and enable the NVIC for the transfer complete |
phungductung | 0:e87aa4c49e95 | 32 | interrupt on the two DMA Streams. The output stream should have higher |
phungductung | 0:e87aa4c49e95 | 33 | priority than the input stream HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ() |
phungductung | 0:e87aa4c49e95 | 34 | (#)Initialize the CRYP HAL using HAL_CRYP_Init(). This function configures mainly: |
phungductung | 0:e87aa4c49e95 | 35 | (##) The data type: 1-bit, 8-bit, 16-bit and 32-bit |
phungductung | 0:e87aa4c49e95 | 36 | (##) The key size: 128, 192 and 256. This parameter is relevant only for AES |
phungductung | 0:e87aa4c49e95 | 37 | (##) The encryption/decryption key. Its size depends on the algorithm |
phungductung | 0:e87aa4c49e95 | 38 | used for encryption/decryption |
phungductung | 0:e87aa4c49e95 | 39 | (##) The initialization vector (counter). It is not used ECB mode. |
phungductung | 0:e87aa4c49e95 | 40 | (#)Three processing (encryption/decryption) functions are available: |
phungductung | 0:e87aa4c49e95 | 41 | (##) Polling mode: encryption and decryption APIs are blocking functions |
phungductung | 0:e87aa4c49e95 | 42 | i.e. they process the data and wait till the processing is finished |
phungductung | 0:e87aa4c49e95 | 43 | e.g. HAL_CRYPEx_AESGCM_Encrypt() |
phungductung | 0:e87aa4c49e95 | 44 | (##) Interrupt mode: encryption and decryption APIs are not blocking functions |
phungductung | 0:e87aa4c49e95 | 45 | i.e. they process the data under interrupt |
phungductung | 0:e87aa4c49e95 | 46 | e.g. HAL_CRYPEx_AESGCM_Encrypt_IT() |
phungductung | 0:e87aa4c49e95 | 47 | (##) DMA mode: encryption and decryption APIs are not blocking functions |
phungductung | 0:e87aa4c49e95 | 48 | i.e. the data transfer is ensured by DMA |
phungductung | 0:e87aa4c49e95 | 49 | e.g. HAL_CRYPEx_AESGCM_Encrypt_DMA() |
phungductung | 0:e87aa4c49e95 | 50 | (#)When the processing function is called at first time after HAL_CRYP_Init() |
phungductung | 0:e87aa4c49e95 | 51 | the CRYP peripheral is initialized and processes the buffer in input. |
phungductung | 0:e87aa4c49e95 | 52 | At second call, the processing function performs an append of the already |
phungductung | 0:e87aa4c49e95 | 53 | processed buffer. |
phungductung | 0:e87aa4c49e95 | 54 | When a new data block is to be processed, call HAL_CRYP_Init() then the |
phungductung | 0:e87aa4c49e95 | 55 | processing function. |
phungductung | 0:e87aa4c49e95 | 56 | (#)In AES-GCM and AES-CCM modes are an authenticated encryption algorithms |
phungductung | 0:e87aa4c49e95 | 57 | which provide authentication messages. |
phungductung | 0:e87aa4c49e95 | 58 | HAL_AES_GCM_Finish() and HAL_AES_CCM_Finish() are used to provide those |
phungductung | 0:e87aa4c49e95 | 59 | authentication messages. |
phungductung | 0:e87aa4c49e95 | 60 | Call those functions after the processing ones (polling, interrupt or DMA). |
phungductung | 0:e87aa4c49e95 | 61 | e.g. in AES-CCM mode call HAL_CRYPEx_AESCCM_Encrypt() to encrypt the plain data |
phungductung | 0:e87aa4c49e95 | 62 | then call HAL_CRYPEx_AESCCM_Finish() to get the authentication message |
phungductung | 0:e87aa4c49e95 | 63 | -@- For CCM Encrypt/Decrypt API's, only DataType = 8-bit is supported by this version. |
phungductung | 0:e87aa4c49e95 | 64 | -@- The HAL_CRYPEx_AESGCM_xxxx() implementation is limited to 32bits inputs data length |
phungductung | 0:e87aa4c49e95 | 65 | (Plain/Cyphertext, Header) compared with GCM standards specifications (800-38D). |
phungductung | 0:e87aa4c49e95 | 66 | (#)Call HAL_CRYP_DeInit() to deinitialize the CRYP peripheral. |
phungductung | 0:e87aa4c49e95 | 67 | |
phungductung | 0:e87aa4c49e95 | 68 | @endverbatim |
phungductung | 0:e87aa4c49e95 | 69 | ****************************************************************************** |
phungductung | 0:e87aa4c49e95 | 70 | * @attention |
phungductung | 0:e87aa4c49e95 | 71 | * |
phungductung | 0:e87aa4c49e95 | 72 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
phungductung | 0:e87aa4c49e95 | 73 | * |
phungductung | 0:e87aa4c49e95 | 74 | * Redistribution and use in source and binary forms, with or without modification, |
phungductung | 0:e87aa4c49e95 | 75 | * are permitted provided that the following conditions are met: |
phungductung | 0:e87aa4c49e95 | 76 | * 1. Redistributions of source code must retain the above copyright notice, |
phungductung | 0:e87aa4c49e95 | 77 | * this list of conditions and the following disclaimer. |
phungductung | 0:e87aa4c49e95 | 78 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
phungductung | 0:e87aa4c49e95 | 79 | * this list of conditions and the following disclaimer in the documentation |
phungductung | 0:e87aa4c49e95 | 80 | * and/or other materials provided with the distribution. |
phungductung | 0:e87aa4c49e95 | 81 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
phungductung | 0:e87aa4c49e95 | 82 | * may be used to endorse or promote products derived from this software |
phungductung | 0:e87aa4c49e95 | 83 | * without specific prior written permission. |
phungductung | 0:e87aa4c49e95 | 84 | * |
phungductung | 0:e87aa4c49e95 | 85 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
phungductung | 0:e87aa4c49e95 | 86 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
phungductung | 0:e87aa4c49e95 | 87 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
phungductung | 0:e87aa4c49e95 | 88 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
phungductung | 0:e87aa4c49e95 | 89 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
phungductung | 0:e87aa4c49e95 | 90 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
phungductung | 0:e87aa4c49e95 | 91 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
phungductung | 0:e87aa4c49e95 | 92 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
phungductung | 0:e87aa4c49e95 | 93 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
phungductung | 0:e87aa4c49e95 | 94 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
phungductung | 0:e87aa4c49e95 | 95 | * |
phungductung | 0:e87aa4c49e95 | 96 | ****************************************************************************** |
phungductung | 0:e87aa4c49e95 | 97 | */ |
phungductung | 0:e87aa4c49e95 | 98 | |
phungductung | 0:e87aa4c49e95 | 99 | /* Includes ------------------------------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 100 | #include "stm32f7xx_hal.h" |
phungductung | 0:e87aa4c49e95 | 101 | |
phungductung | 0:e87aa4c49e95 | 102 | /** @addtogroup STM32F7xx_HAL_Driver |
phungductung | 0:e87aa4c49e95 | 103 | * @{ |
phungductung | 0:e87aa4c49e95 | 104 | */ |
phungductung | 0:e87aa4c49e95 | 105 | #if defined (STM32F756xx) |
phungductung | 0:e87aa4c49e95 | 106 | /** @defgroup CRYPEx CRYPEx |
phungductung | 0:e87aa4c49e95 | 107 | * @brief CRYP Extension HAL module driver. |
phungductung | 0:e87aa4c49e95 | 108 | * @{ |
phungductung | 0:e87aa4c49e95 | 109 | */ |
phungductung | 0:e87aa4c49e95 | 110 | |
phungductung | 0:e87aa4c49e95 | 111 | |
phungductung | 0:e87aa4c49e95 | 112 | #ifdef HAL_CRYP_MODULE_ENABLED |
phungductung | 0:e87aa4c49e95 | 113 | |
phungductung | 0:e87aa4c49e95 | 114 | /* Private typedef -----------------------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 115 | /* Private define ------------------------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 116 | /** @addtogroup CRYPEx_Private_define |
phungductung | 0:e87aa4c49e95 | 117 | * @{ |
phungductung | 0:e87aa4c49e95 | 118 | */ |
phungductung | 0:e87aa4c49e95 | 119 | #define CRYPEx_TIMEOUT_VALUE 1 |
phungductung | 0:e87aa4c49e95 | 120 | /** |
phungductung | 0:e87aa4c49e95 | 121 | * @} |
phungductung | 0:e87aa4c49e95 | 122 | */ |
phungductung | 0:e87aa4c49e95 | 123 | |
phungductung | 0:e87aa4c49e95 | 124 | /* Private macro -------------------------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 125 | /* Private variables ---------------------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 126 | /* Private function prototypes -----------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 127 | /** @defgroup CRYPEx_Private_Functions_prototypes CRYP Private Functions Prototypes |
phungductung | 0:e87aa4c49e95 | 128 | * @{ |
phungductung | 0:e87aa4c49e95 | 129 | */ |
phungductung | 0:e87aa4c49e95 | 130 | static void CRYPEx_GCMCCM_SetInitVector(CRYP_HandleTypeDef *hcryp, uint8_t *InitVector); |
phungductung | 0:e87aa4c49e95 | 131 | static void CRYPEx_GCMCCM_SetKey(CRYP_HandleTypeDef *hcryp, uint8_t *Key, uint32_t KeySize); |
phungductung | 0:e87aa4c49e95 | 132 | static HAL_StatusTypeDef CRYPEx_GCMCCM_ProcessData(CRYP_HandleTypeDef *hcryp, uint8_t *Input, uint16_t Ilength, uint8_t *Output, uint32_t Timeout); |
phungductung | 0:e87aa4c49e95 | 133 | static HAL_StatusTypeDef CRYPEx_GCMCCM_SetHeaderPhase(CRYP_HandleTypeDef *hcryp, uint8_t* Input, uint16_t Ilength, uint32_t Timeout); |
phungductung | 0:e87aa4c49e95 | 134 | static void CRYPEx_GCMCCM_DMAInCplt(DMA_HandleTypeDef *hdma); |
phungductung | 0:e87aa4c49e95 | 135 | static void CRYPEx_GCMCCM_DMAOutCplt(DMA_HandleTypeDef *hdma); |
phungductung | 0:e87aa4c49e95 | 136 | static void CRYPEx_GCMCCM_DMAError(DMA_HandleTypeDef *hdma); |
phungductung | 0:e87aa4c49e95 | 137 | static void CRYPEx_GCMCCM_SetDMAConfig(CRYP_HandleTypeDef *hcryp, uint32_t inputaddr, uint16_t Size, uint32_t outputaddr); |
phungductung | 0:e87aa4c49e95 | 138 | /** |
phungductung | 0:e87aa4c49e95 | 139 | * @} |
phungductung | 0:e87aa4c49e95 | 140 | */ |
phungductung | 0:e87aa4c49e95 | 141 | |
phungductung | 0:e87aa4c49e95 | 142 | /* Private functions ---------------------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 143 | /** @addtogroup CRYPEx_Private_Functions |
phungductung | 0:e87aa4c49e95 | 144 | * @{ |
phungductung | 0:e87aa4c49e95 | 145 | */ |
phungductung | 0:e87aa4c49e95 | 146 | |
phungductung | 0:e87aa4c49e95 | 147 | /** |
phungductung | 0:e87aa4c49e95 | 148 | * @brief DMA CRYP Input Data process complete callback. |
phungductung | 0:e87aa4c49e95 | 149 | * @param hdma: DMA handle |
phungductung | 0:e87aa4c49e95 | 150 | * @retval None |
phungductung | 0:e87aa4c49e95 | 151 | */ |
phungductung | 0:e87aa4c49e95 | 152 | static void CRYPEx_GCMCCM_DMAInCplt(DMA_HandleTypeDef *hdma) |
phungductung | 0:e87aa4c49e95 | 153 | { |
phungductung | 0:e87aa4c49e95 | 154 | CRYP_HandleTypeDef* hcryp = ( CRYP_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
phungductung | 0:e87aa4c49e95 | 155 | |
phungductung | 0:e87aa4c49e95 | 156 | /* Disable the DMA transfer for input Fifo request by resetting the DIEN bit |
phungductung | 0:e87aa4c49e95 | 157 | in the DMACR register */ |
phungductung | 0:e87aa4c49e95 | 158 | hcryp->Instance->DMACR &= (uint32_t)(~CRYP_DMACR_DIEN); |
phungductung | 0:e87aa4c49e95 | 159 | |
phungductung | 0:e87aa4c49e95 | 160 | /* Call input data transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 161 | HAL_CRYP_InCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 162 | } |
phungductung | 0:e87aa4c49e95 | 163 | |
phungductung | 0:e87aa4c49e95 | 164 | /** |
phungductung | 0:e87aa4c49e95 | 165 | * @brief DMA CRYP Output Data process complete callback. |
phungductung | 0:e87aa4c49e95 | 166 | * @param hdma: DMA handle |
phungductung | 0:e87aa4c49e95 | 167 | * @retval None |
phungductung | 0:e87aa4c49e95 | 168 | */ |
phungductung | 0:e87aa4c49e95 | 169 | static void CRYPEx_GCMCCM_DMAOutCplt(DMA_HandleTypeDef *hdma) |
phungductung | 0:e87aa4c49e95 | 170 | { |
phungductung | 0:e87aa4c49e95 | 171 | CRYP_HandleTypeDef* hcryp = ( CRYP_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
phungductung | 0:e87aa4c49e95 | 172 | |
phungductung | 0:e87aa4c49e95 | 173 | /* Disable the DMA transfer for output Fifo request by resetting the DOEN bit |
phungductung | 0:e87aa4c49e95 | 174 | in the DMACR register */ |
phungductung | 0:e87aa4c49e95 | 175 | hcryp->Instance->DMACR &= (uint32_t)(~CRYP_DMACR_DOEN); |
phungductung | 0:e87aa4c49e95 | 176 | |
phungductung | 0:e87aa4c49e95 | 177 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 178 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 179 | |
phungductung | 0:e87aa4c49e95 | 180 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 181 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 182 | |
phungductung | 0:e87aa4c49e95 | 183 | /* Call output data transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 184 | HAL_CRYP_OutCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 185 | } |
phungductung | 0:e87aa4c49e95 | 186 | |
phungductung | 0:e87aa4c49e95 | 187 | /** |
phungductung | 0:e87aa4c49e95 | 188 | * @brief DMA CRYP communication error callback. |
phungductung | 0:e87aa4c49e95 | 189 | * @param hdma: DMA handle |
phungductung | 0:e87aa4c49e95 | 190 | * @retval None |
phungductung | 0:e87aa4c49e95 | 191 | */ |
phungductung | 0:e87aa4c49e95 | 192 | static void CRYPEx_GCMCCM_DMAError(DMA_HandleTypeDef *hdma) |
phungductung | 0:e87aa4c49e95 | 193 | { |
phungductung | 0:e87aa4c49e95 | 194 | CRYP_HandleTypeDef* hcryp = ( CRYP_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
phungductung | 0:e87aa4c49e95 | 195 | hcryp->State= HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 196 | HAL_CRYP_ErrorCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 197 | } |
phungductung | 0:e87aa4c49e95 | 198 | |
phungductung | 0:e87aa4c49e95 | 199 | /** |
phungductung | 0:e87aa4c49e95 | 200 | * @brief Writes the Key in Key registers. |
phungductung | 0:e87aa4c49e95 | 201 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 202 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 203 | * @param Key: Pointer to Key buffer |
phungductung | 0:e87aa4c49e95 | 204 | * @param KeySize: Size of Key |
phungductung | 0:e87aa4c49e95 | 205 | * @retval None |
phungductung | 0:e87aa4c49e95 | 206 | */ |
phungductung | 0:e87aa4c49e95 | 207 | static void CRYPEx_GCMCCM_SetKey(CRYP_HandleTypeDef *hcryp, uint8_t *Key, uint32_t KeySize) |
phungductung | 0:e87aa4c49e95 | 208 | { |
phungductung | 0:e87aa4c49e95 | 209 | uint32_t keyaddr = (uint32_t)Key; |
phungductung | 0:e87aa4c49e95 | 210 | |
phungductung | 0:e87aa4c49e95 | 211 | switch(KeySize) |
phungductung | 0:e87aa4c49e95 | 212 | { |
phungductung | 0:e87aa4c49e95 | 213 | case CRYP_KEYSIZE_256B: |
phungductung | 0:e87aa4c49e95 | 214 | /* Key Initialisation */ |
phungductung | 0:e87aa4c49e95 | 215 | hcryp->Instance->K0LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 216 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 217 | hcryp->Instance->K0RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 218 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 219 | hcryp->Instance->K1LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 220 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 221 | hcryp->Instance->K1RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 222 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 223 | hcryp->Instance->K2LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 224 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 225 | hcryp->Instance->K2RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 226 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 227 | hcryp->Instance->K3LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 228 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 229 | hcryp->Instance->K3RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 230 | break; |
phungductung | 0:e87aa4c49e95 | 231 | case CRYP_KEYSIZE_192B: |
phungductung | 0:e87aa4c49e95 | 232 | hcryp->Instance->K1LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 233 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 234 | hcryp->Instance->K1RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 235 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 236 | hcryp->Instance->K2LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 237 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 238 | hcryp->Instance->K2RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 239 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 240 | hcryp->Instance->K3LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 241 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 242 | hcryp->Instance->K3RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 243 | break; |
phungductung | 0:e87aa4c49e95 | 244 | case CRYP_KEYSIZE_128B: |
phungductung | 0:e87aa4c49e95 | 245 | hcryp->Instance->K2LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 246 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 247 | hcryp->Instance->K2RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 248 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 249 | hcryp->Instance->K3LR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 250 | keyaddr+=4; |
phungductung | 0:e87aa4c49e95 | 251 | hcryp->Instance->K3RR = __REV(*(uint32_t*)(keyaddr)); |
phungductung | 0:e87aa4c49e95 | 252 | break; |
phungductung | 0:e87aa4c49e95 | 253 | default: |
phungductung | 0:e87aa4c49e95 | 254 | break; |
phungductung | 0:e87aa4c49e95 | 255 | } |
phungductung | 0:e87aa4c49e95 | 256 | } |
phungductung | 0:e87aa4c49e95 | 257 | |
phungductung | 0:e87aa4c49e95 | 258 | /** |
phungductung | 0:e87aa4c49e95 | 259 | * @brief Writes the InitVector/InitCounter in IV registers. |
phungductung | 0:e87aa4c49e95 | 260 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 261 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 262 | * @param InitVector: Pointer to InitVector/InitCounter buffer |
phungductung | 0:e87aa4c49e95 | 263 | * @retval None |
phungductung | 0:e87aa4c49e95 | 264 | */ |
phungductung | 0:e87aa4c49e95 | 265 | static void CRYPEx_GCMCCM_SetInitVector(CRYP_HandleTypeDef *hcryp, uint8_t *InitVector) |
phungductung | 0:e87aa4c49e95 | 266 | { |
phungductung | 0:e87aa4c49e95 | 267 | uint32_t ivaddr = (uint32_t)InitVector; |
phungductung | 0:e87aa4c49e95 | 268 | |
phungductung | 0:e87aa4c49e95 | 269 | hcryp->Instance->IV0LR = __REV(*(uint32_t*)(ivaddr)); |
phungductung | 0:e87aa4c49e95 | 270 | ivaddr+=4; |
phungductung | 0:e87aa4c49e95 | 271 | hcryp->Instance->IV0RR = __REV(*(uint32_t*)(ivaddr)); |
phungductung | 0:e87aa4c49e95 | 272 | ivaddr+=4; |
phungductung | 0:e87aa4c49e95 | 273 | hcryp->Instance->IV1LR = __REV(*(uint32_t*)(ivaddr)); |
phungductung | 0:e87aa4c49e95 | 274 | ivaddr+=4; |
phungductung | 0:e87aa4c49e95 | 275 | hcryp->Instance->IV1RR = __REV(*(uint32_t*)(ivaddr)); |
phungductung | 0:e87aa4c49e95 | 276 | } |
phungductung | 0:e87aa4c49e95 | 277 | |
phungductung | 0:e87aa4c49e95 | 278 | /** |
phungductung | 0:e87aa4c49e95 | 279 | * @brief Process Data: Writes Input data in polling mode and read the Output data. |
phungductung | 0:e87aa4c49e95 | 280 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 281 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 282 | * @param Input: Pointer to the Input buffer. |
phungductung | 0:e87aa4c49e95 | 283 | * @param Ilength: Length of the Input buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 284 | * @param Output: Pointer to the returned buffer |
phungductung | 0:e87aa4c49e95 | 285 | * @param Timeout: Timeout value |
phungductung | 0:e87aa4c49e95 | 286 | * @retval None |
phungductung | 0:e87aa4c49e95 | 287 | */ |
phungductung | 0:e87aa4c49e95 | 288 | static HAL_StatusTypeDef CRYPEx_GCMCCM_ProcessData(CRYP_HandleTypeDef *hcryp, uint8_t *Input, uint16_t Ilength, uint8_t *Output, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 289 | { |
phungductung | 0:e87aa4c49e95 | 290 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 291 | uint32_t i = 0; |
phungductung | 0:e87aa4c49e95 | 292 | uint32_t inputaddr = (uint32_t)Input; |
phungductung | 0:e87aa4c49e95 | 293 | uint32_t outputaddr = (uint32_t)Output; |
phungductung | 0:e87aa4c49e95 | 294 | |
phungductung | 0:e87aa4c49e95 | 295 | for(i=0; (i < Ilength); i+=16) |
phungductung | 0:e87aa4c49e95 | 296 | { |
phungductung | 0:e87aa4c49e95 | 297 | /* Write the Input block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 298 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 299 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 300 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 301 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 302 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 303 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 304 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 305 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 306 | |
phungductung | 0:e87aa4c49e95 | 307 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 308 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 309 | |
phungductung | 0:e87aa4c49e95 | 310 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE)) |
phungductung | 0:e87aa4c49e95 | 311 | { |
phungductung | 0:e87aa4c49e95 | 312 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 313 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 314 | { |
phungductung | 0:e87aa4c49e95 | 315 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 316 | { |
phungductung | 0:e87aa4c49e95 | 317 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 318 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 319 | |
phungductung | 0:e87aa4c49e95 | 320 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 321 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 322 | |
phungductung | 0:e87aa4c49e95 | 323 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 324 | } |
phungductung | 0:e87aa4c49e95 | 325 | } |
phungductung | 0:e87aa4c49e95 | 326 | } |
phungductung | 0:e87aa4c49e95 | 327 | /* Read the Output block from the OUT FIFO */ |
phungductung | 0:e87aa4c49e95 | 328 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 329 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 330 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 331 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 332 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 333 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 334 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 335 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 336 | } |
phungductung | 0:e87aa4c49e95 | 337 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 338 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 339 | } |
phungductung | 0:e87aa4c49e95 | 340 | |
phungductung | 0:e87aa4c49e95 | 341 | /** |
phungductung | 0:e87aa4c49e95 | 342 | * @brief Sets the header phase |
phungductung | 0:e87aa4c49e95 | 343 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 344 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 345 | * @param Input: Pointer to the Input buffer. |
phungductung | 0:e87aa4c49e95 | 346 | * @param Ilength: Length of the Input buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 347 | * @param Timeout: Timeout value |
phungductung | 0:e87aa4c49e95 | 348 | * @retval None |
phungductung | 0:e87aa4c49e95 | 349 | */ |
phungductung | 0:e87aa4c49e95 | 350 | static HAL_StatusTypeDef CRYPEx_GCMCCM_SetHeaderPhase(CRYP_HandleTypeDef *hcryp, uint8_t* Input, uint16_t Ilength, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 351 | { |
phungductung | 0:e87aa4c49e95 | 352 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 353 | uint32_t loopcounter = 0; |
phungductung | 0:e87aa4c49e95 | 354 | uint32_t headeraddr = (uint32_t)Input; |
phungductung | 0:e87aa4c49e95 | 355 | |
phungductung | 0:e87aa4c49e95 | 356 | /***************************** Header phase *********************************/ |
phungductung | 0:e87aa4c49e95 | 357 | if(hcryp->Init.HeaderSize != 0) |
phungductung | 0:e87aa4c49e95 | 358 | { |
phungductung | 0:e87aa4c49e95 | 359 | /* Select header phase */ |
phungductung | 0:e87aa4c49e95 | 360 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER); |
phungductung | 0:e87aa4c49e95 | 361 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 362 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 363 | |
phungductung | 0:e87aa4c49e95 | 364 | for(loopcounter = 0; (loopcounter < hcryp->Init.HeaderSize); loopcounter+=16) |
phungductung | 0:e87aa4c49e95 | 365 | { |
phungductung | 0:e87aa4c49e95 | 366 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 367 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 368 | |
phungductung | 0:e87aa4c49e95 | 369 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM)) |
phungductung | 0:e87aa4c49e95 | 370 | { |
phungductung | 0:e87aa4c49e95 | 371 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 372 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 373 | { |
phungductung | 0:e87aa4c49e95 | 374 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 375 | { |
phungductung | 0:e87aa4c49e95 | 376 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 377 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 378 | |
phungductung | 0:e87aa4c49e95 | 379 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 380 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 381 | |
phungductung | 0:e87aa4c49e95 | 382 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 383 | } |
phungductung | 0:e87aa4c49e95 | 384 | } |
phungductung | 0:e87aa4c49e95 | 385 | } |
phungductung | 0:e87aa4c49e95 | 386 | /* Write the Input block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 387 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 388 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 389 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 390 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 391 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 392 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 393 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 394 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 395 | } |
phungductung | 0:e87aa4c49e95 | 396 | |
phungductung | 0:e87aa4c49e95 | 397 | /* Wait until the complete message has been processed */ |
phungductung | 0:e87aa4c49e95 | 398 | |
phungductung | 0:e87aa4c49e95 | 399 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 400 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 401 | |
phungductung | 0:e87aa4c49e95 | 402 | while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY) |
phungductung | 0:e87aa4c49e95 | 403 | { |
phungductung | 0:e87aa4c49e95 | 404 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 405 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 406 | { |
phungductung | 0:e87aa4c49e95 | 407 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 408 | { |
phungductung | 0:e87aa4c49e95 | 409 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 410 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 411 | |
phungductung | 0:e87aa4c49e95 | 412 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 413 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 414 | |
phungductung | 0:e87aa4c49e95 | 415 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 416 | } |
phungductung | 0:e87aa4c49e95 | 417 | } |
phungductung | 0:e87aa4c49e95 | 418 | } |
phungductung | 0:e87aa4c49e95 | 419 | } |
phungductung | 0:e87aa4c49e95 | 420 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 421 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 422 | } |
phungductung | 0:e87aa4c49e95 | 423 | |
phungductung | 0:e87aa4c49e95 | 424 | /** |
phungductung | 0:e87aa4c49e95 | 425 | * @brief Sets the DMA configuration and start the DMA transfer. |
phungductung | 0:e87aa4c49e95 | 426 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 427 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 428 | * @param inputaddr: Address of the Input buffer |
phungductung | 0:e87aa4c49e95 | 429 | * @param Size: Size of the Input buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 430 | * @param outputaddr: Address of the Output buffer |
phungductung | 0:e87aa4c49e95 | 431 | * @retval None |
phungductung | 0:e87aa4c49e95 | 432 | */ |
phungductung | 0:e87aa4c49e95 | 433 | static void CRYPEx_GCMCCM_SetDMAConfig(CRYP_HandleTypeDef *hcryp, uint32_t inputaddr, uint16_t Size, uint32_t outputaddr) |
phungductung | 0:e87aa4c49e95 | 434 | { |
phungductung | 0:e87aa4c49e95 | 435 | /* Set the CRYP DMA transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 436 | hcryp->hdmain->XferCpltCallback = CRYPEx_GCMCCM_DMAInCplt; |
phungductung | 0:e87aa4c49e95 | 437 | /* Set the DMA error callback */ |
phungductung | 0:e87aa4c49e95 | 438 | hcryp->hdmain->XferErrorCallback = CRYPEx_GCMCCM_DMAError; |
phungductung | 0:e87aa4c49e95 | 439 | |
phungductung | 0:e87aa4c49e95 | 440 | /* Set the CRYP DMA transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 441 | hcryp->hdmaout->XferCpltCallback = CRYPEx_GCMCCM_DMAOutCplt; |
phungductung | 0:e87aa4c49e95 | 442 | /* Set the DMA error callback */ |
phungductung | 0:e87aa4c49e95 | 443 | hcryp->hdmaout->XferErrorCallback = CRYPEx_GCMCCM_DMAError; |
phungductung | 0:e87aa4c49e95 | 444 | |
phungductung | 0:e87aa4c49e95 | 445 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 446 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 447 | |
phungductung | 0:e87aa4c49e95 | 448 | /* Enable the DMA In DMA Stream */ |
phungductung | 0:e87aa4c49e95 | 449 | HAL_DMA_Start_IT(hcryp->hdmain, inputaddr, (uint32_t)&hcryp->Instance->DR, Size/4); |
phungductung | 0:e87aa4c49e95 | 450 | |
phungductung | 0:e87aa4c49e95 | 451 | /* Enable In DMA request */ |
phungductung | 0:e87aa4c49e95 | 452 | hcryp->Instance->DMACR = CRYP_DMACR_DIEN; |
phungductung | 0:e87aa4c49e95 | 453 | |
phungductung | 0:e87aa4c49e95 | 454 | /* Enable the DMA Out DMA Stream */ |
phungductung | 0:e87aa4c49e95 | 455 | HAL_DMA_Start_IT(hcryp->hdmaout, (uint32_t)&hcryp->Instance->DOUT, outputaddr, Size/4); |
phungductung | 0:e87aa4c49e95 | 456 | |
phungductung | 0:e87aa4c49e95 | 457 | /* Enable Out DMA request */ |
phungductung | 0:e87aa4c49e95 | 458 | hcryp->Instance->DMACR |= CRYP_DMACR_DOEN; |
phungductung | 0:e87aa4c49e95 | 459 | } |
phungductung | 0:e87aa4c49e95 | 460 | |
phungductung | 0:e87aa4c49e95 | 461 | /** |
phungductung | 0:e87aa4c49e95 | 462 | * @} |
phungductung | 0:e87aa4c49e95 | 463 | */ |
phungductung | 0:e87aa4c49e95 | 464 | |
phungductung | 0:e87aa4c49e95 | 465 | /* Exported functions---------------------------------------------------------*/ |
phungductung | 0:e87aa4c49e95 | 466 | /** @addtogroup CRYPEx_Exported_Functions |
phungductung | 0:e87aa4c49e95 | 467 | * @{ |
phungductung | 0:e87aa4c49e95 | 468 | */ |
phungductung | 0:e87aa4c49e95 | 469 | |
phungductung | 0:e87aa4c49e95 | 470 | /** @defgroup CRYPEx_Exported_Functions_Group1 Extended AES processing functions |
phungductung | 0:e87aa4c49e95 | 471 | * @brief Extended processing functions. |
phungductung | 0:e87aa4c49e95 | 472 | * |
phungductung | 0:e87aa4c49e95 | 473 | @verbatim |
phungductung | 0:e87aa4c49e95 | 474 | ============================================================================== |
phungductung | 0:e87aa4c49e95 | 475 | ##### Extended AES processing functions ##### |
phungductung | 0:e87aa4c49e95 | 476 | ============================================================================== |
phungductung | 0:e87aa4c49e95 | 477 | [..] This section provides functions allowing to: |
phungductung | 0:e87aa4c49e95 | 478 | (+) Encrypt plaintext using AES-128/192/256 using GCM and CCM chaining modes |
phungductung | 0:e87aa4c49e95 | 479 | (+) Decrypt cyphertext using AES-128/192/256 using GCM and CCM chaining modes |
phungductung | 0:e87aa4c49e95 | 480 | (+) Finish the processing. This function is available only for GCM and CCM |
phungductung | 0:e87aa4c49e95 | 481 | [..] Three processing methods are available: |
phungductung | 0:e87aa4c49e95 | 482 | (+) Polling mode |
phungductung | 0:e87aa4c49e95 | 483 | (+) Interrupt mode |
phungductung | 0:e87aa4c49e95 | 484 | (+) DMA mode |
phungductung | 0:e87aa4c49e95 | 485 | |
phungductung | 0:e87aa4c49e95 | 486 | @endverbatim |
phungductung | 0:e87aa4c49e95 | 487 | * @{ |
phungductung | 0:e87aa4c49e95 | 488 | */ |
phungductung | 0:e87aa4c49e95 | 489 | |
phungductung | 0:e87aa4c49e95 | 490 | |
phungductung | 0:e87aa4c49e95 | 491 | /** |
phungductung | 0:e87aa4c49e95 | 492 | * @brief Initializes the CRYP peripheral in AES CCM encryption mode then |
phungductung | 0:e87aa4c49e95 | 493 | * encrypt pPlainData. The cypher data are available in pCypherData. |
phungductung | 0:e87aa4c49e95 | 494 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 495 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 496 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 497 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 498 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 499 | * @param Timeout: Timeout duration |
phungductung | 0:e87aa4c49e95 | 500 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 501 | */ |
phungductung | 0:e87aa4c49e95 | 502 | HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Encrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 503 | { |
phungductung | 0:e87aa4c49e95 | 504 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 505 | uint32_t headersize = hcryp->Init.HeaderSize; |
phungductung | 0:e87aa4c49e95 | 506 | uint32_t headeraddr = (uint32_t)hcryp->Init.Header; |
phungductung | 0:e87aa4c49e95 | 507 | uint32_t loopcounter = 0; |
phungductung | 0:e87aa4c49e95 | 508 | uint32_t bufferidx = 0; |
phungductung | 0:e87aa4c49e95 | 509 | uint8_t blockb0[16] = {0};/* Block B0 */ |
phungductung | 0:e87aa4c49e95 | 510 | uint8_t ctr[16] = {0}; /* Counter */ |
phungductung | 0:e87aa4c49e95 | 511 | uint32_t b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 512 | |
phungductung | 0:e87aa4c49e95 | 513 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 514 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 515 | |
phungductung | 0:e87aa4c49e95 | 516 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 517 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 518 | |
phungductung | 0:e87aa4c49e95 | 519 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 520 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 521 | { |
phungductung | 0:e87aa4c49e95 | 522 | /************************ Formatting the header block *********************/ |
phungductung | 0:e87aa4c49e95 | 523 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 524 | { |
phungductung | 0:e87aa4c49e95 | 525 | /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */ |
phungductung | 0:e87aa4c49e95 | 526 | if(headersize < 65280) |
phungductung | 0:e87aa4c49e95 | 527 | { |
phungductung | 0:e87aa4c49e95 | 528 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 529 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 530 | headersize += 2; |
phungductung | 0:e87aa4c49e95 | 531 | } |
phungductung | 0:e87aa4c49e95 | 532 | else |
phungductung | 0:e87aa4c49e95 | 533 | { |
phungductung | 0:e87aa4c49e95 | 534 | /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */ |
phungductung | 0:e87aa4c49e95 | 535 | hcryp->Init.pScratch[bufferidx++] = 0xFF; |
phungductung | 0:e87aa4c49e95 | 536 | hcryp->Init.pScratch[bufferidx++] = 0xFE; |
phungductung | 0:e87aa4c49e95 | 537 | hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000; |
phungductung | 0:e87aa4c49e95 | 538 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000; |
phungductung | 0:e87aa4c49e95 | 539 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00; |
phungductung | 0:e87aa4c49e95 | 540 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff; |
phungductung | 0:e87aa4c49e95 | 541 | headersize += 6; |
phungductung | 0:e87aa4c49e95 | 542 | } |
phungductung | 0:e87aa4c49e95 | 543 | /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */ |
phungductung | 0:e87aa4c49e95 | 544 | for(loopcounter = 0; loopcounter < headersize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 545 | { |
phungductung | 0:e87aa4c49e95 | 546 | hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 547 | } |
phungductung | 0:e87aa4c49e95 | 548 | /* Check if the header size is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 549 | if ((headersize % 16) != 0) |
phungductung | 0:e87aa4c49e95 | 550 | { |
phungductung | 0:e87aa4c49e95 | 551 | /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 552 | for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 553 | { |
phungductung | 0:e87aa4c49e95 | 554 | hcryp->Init.pScratch[loopcounter] = 0; |
phungductung | 0:e87aa4c49e95 | 555 | } |
phungductung | 0:e87aa4c49e95 | 556 | /* Set the header size to modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 557 | headersize = ((headersize/16) + 1) * 16; |
phungductung | 0:e87aa4c49e95 | 558 | } |
phungductung | 0:e87aa4c49e95 | 559 | /* Set the pointer headeraddr to hcryp->Init.pScratch */ |
phungductung | 0:e87aa4c49e95 | 560 | headeraddr = (uint32_t)hcryp->Init.pScratch; |
phungductung | 0:e87aa4c49e95 | 561 | } |
phungductung | 0:e87aa4c49e95 | 562 | /*********************** Formatting the block B0 **************************/ |
phungductung | 0:e87aa4c49e95 | 563 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 564 | { |
phungductung | 0:e87aa4c49e95 | 565 | blockb0[0] = 0x40; |
phungductung | 0:e87aa4c49e95 | 566 | } |
phungductung | 0:e87aa4c49e95 | 567 | /* Flags byte */ |
phungductung | 0:e87aa4c49e95 | 568 | /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */ |
phungductung | 0:e87aa4c49e95 | 569 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3); |
phungductung | 0:e87aa4c49e95 | 570 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07); |
phungductung | 0:e87aa4c49e95 | 571 | |
phungductung | 0:e87aa4c49e95 | 572 | for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 573 | { |
phungductung | 0:e87aa4c49e95 | 574 | blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 575 | } |
phungductung | 0:e87aa4c49e95 | 576 | for ( ; loopcounter < 13; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 577 | { |
phungductung | 0:e87aa4c49e95 | 578 | blockb0[loopcounter+1] = 0; |
phungductung | 0:e87aa4c49e95 | 579 | } |
phungductung | 0:e87aa4c49e95 | 580 | |
phungductung | 0:e87aa4c49e95 | 581 | blockb0[14] = (Size >> 8); |
phungductung | 0:e87aa4c49e95 | 582 | blockb0[15] = (Size & 0xFF); |
phungductung | 0:e87aa4c49e95 | 583 | |
phungductung | 0:e87aa4c49e95 | 584 | /************************* Formatting the initial counter *****************/ |
phungductung | 0:e87aa4c49e95 | 585 | /* Byte 0: |
phungductung | 0:e87aa4c49e95 | 586 | Bits 7 and 6 are reserved and shall be set to 0 |
phungductung | 0:e87aa4c49e95 | 587 | Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter blocks |
phungductung | 0:e87aa4c49e95 | 588 | are distinct from B0 |
phungductung | 0:e87aa4c49e95 | 589 | Bits 0, 1, and 2 contain the same encoding of q as in B0 |
phungductung | 0:e87aa4c49e95 | 590 | */ |
phungductung | 0:e87aa4c49e95 | 591 | ctr[0] = blockb0[0] & 0x07; |
phungductung | 0:e87aa4c49e95 | 592 | /* byte 1 to NonceSize is the IV (Nonce) */ |
phungductung | 0:e87aa4c49e95 | 593 | for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 594 | { |
phungductung | 0:e87aa4c49e95 | 595 | ctr[loopcounter] = blockb0[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 596 | } |
phungductung | 0:e87aa4c49e95 | 597 | /* Set the LSB to 1 */ |
phungductung | 0:e87aa4c49e95 | 598 | ctr[15] |= 0x01; |
phungductung | 0:e87aa4c49e95 | 599 | |
phungductung | 0:e87aa4c49e95 | 600 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 601 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 602 | |
phungductung | 0:e87aa4c49e95 | 603 | /* Set the CRYP peripheral in AES CCM mode */ |
phungductung | 0:e87aa4c49e95 | 604 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT); |
phungductung | 0:e87aa4c49e95 | 605 | |
phungductung | 0:e87aa4c49e95 | 606 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 607 | CRYPEx_GCMCCM_SetInitVector(hcryp, ctr); |
phungductung | 0:e87aa4c49e95 | 608 | |
phungductung | 0:e87aa4c49e95 | 609 | /* Select init phase */ |
phungductung | 0:e87aa4c49e95 | 610 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT); |
phungductung | 0:e87aa4c49e95 | 611 | |
phungductung | 0:e87aa4c49e95 | 612 | b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 613 | /* Write the blockb0 block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 614 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 615 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 616 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 617 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 618 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 619 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 620 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 621 | |
phungductung | 0:e87aa4c49e95 | 622 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 623 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 624 | |
phungductung | 0:e87aa4c49e95 | 625 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 626 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 627 | |
phungductung | 0:e87aa4c49e95 | 628 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 629 | { |
phungductung | 0:e87aa4c49e95 | 630 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 631 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 632 | { |
phungductung | 0:e87aa4c49e95 | 633 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 634 | { |
phungductung | 0:e87aa4c49e95 | 635 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 636 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 637 | |
phungductung | 0:e87aa4c49e95 | 638 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 639 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 640 | |
phungductung | 0:e87aa4c49e95 | 641 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 642 | } |
phungductung | 0:e87aa4c49e95 | 643 | } |
phungductung | 0:e87aa4c49e95 | 644 | } |
phungductung | 0:e87aa4c49e95 | 645 | /***************************** Header phase *******************************/ |
phungductung | 0:e87aa4c49e95 | 646 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 647 | { |
phungductung | 0:e87aa4c49e95 | 648 | /* Select header phase */ |
phungductung | 0:e87aa4c49e95 | 649 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER); |
phungductung | 0:e87aa4c49e95 | 650 | |
phungductung | 0:e87aa4c49e95 | 651 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 652 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 653 | |
phungductung | 0:e87aa4c49e95 | 654 | for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16) |
phungductung | 0:e87aa4c49e95 | 655 | { |
phungductung | 0:e87aa4c49e95 | 656 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 657 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 658 | |
phungductung | 0:e87aa4c49e95 | 659 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM)) |
phungductung | 0:e87aa4c49e95 | 660 | { |
phungductung | 0:e87aa4c49e95 | 661 | { |
phungductung | 0:e87aa4c49e95 | 662 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 663 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 664 | { |
phungductung | 0:e87aa4c49e95 | 665 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 666 | { |
phungductung | 0:e87aa4c49e95 | 667 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 668 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 669 | |
phungductung | 0:e87aa4c49e95 | 670 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 671 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 672 | |
phungductung | 0:e87aa4c49e95 | 673 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 674 | } |
phungductung | 0:e87aa4c49e95 | 675 | } |
phungductung | 0:e87aa4c49e95 | 676 | } |
phungductung | 0:e87aa4c49e95 | 677 | } |
phungductung | 0:e87aa4c49e95 | 678 | /* Write the header block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 679 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 680 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 681 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 682 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 683 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 684 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 685 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 686 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 687 | } |
phungductung | 0:e87aa4c49e95 | 688 | |
phungductung | 0:e87aa4c49e95 | 689 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 690 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 691 | |
phungductung | 0:e87aa4c49e95 | 692 | while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY) |
phungductung | 0:e87aa4c49e95 | 693 | { |
phungductung | 0:e87aa4c49e95 | 694 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 695 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 696 | { |
phungductung | 0:e87aa4c49e95 | 697 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 698 | { |
phungductung | 0:e87aa4c49e95 | 699 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 700 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 701 | |
phungductung | 0:e87aa4c49e95 | 702 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 703 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 704 | |
phungductung | 0:e87aa4c49e95 | 705 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 706 | } |
phungductung | 0:e87aa4c49e95 | 707 | } |
phungductung | 0:e87aa4c49e95 | 708 | } |
phungductung | 0:e87aa4c49e95 | 709 | } |
phungductung | 0:e87aa4c49e95 | 710 | /* Save formatted counter into the scratch buffer pScratch */ |
phungductung | 0:e87aa4c49e95 | 711 | for(loopcounter = 0; (loopcounter < 16); loopcounter++) |
phungductung | 0:e87aa4c49e95 | 712 | { |
phungductung | 0:e87aa4c49e95 | 713 | hcryp->Init.pScratch[loopcounter] = ctr[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 714 | } |
phungductung | 0:e87aa4c49e95 | 715 | /* Reset bit 0 */ |
phungductung | 0:e87aa4c49e95 | 716 | hcryp->Init.pScratch[15] &= 0xfe; |
phungductung | 0:e87aa4c49e95 | 717 | |
phungductung | 0:e87aa4c49e95 | 718 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 719 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 720 | |
phungductung | 0:e87aa4c49e95 | 721 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 722 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 723 | |
phungductung | 0:e87aa4c49e95 | 724 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 725 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 726 | |
phungductung | 0:e87aa4c49e95 | 727 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 728 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 729 | } |
phungductung | 0:e87aa4c49e95 | 730 | |
phungductung | 0:e87aa4c49e95 | 731 | /* Write Plain Data and Get Cypher Data */ |
phungductung | 0:e87aa4c49e95 | 732 | if(CRYPEx_GCMCCM_ProcessData(hcryp,pPlainData, Size, pCypherData, Timeout) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 733 | { |
phungductung | 0:e87aa4c49e95 | 734 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 735 | } |
phungductung | 0:e87aa4c49e95 | 736 | |
phungductung | 0:e87aa4c49e95 | 737 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 738 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 739 | |
phungductung | 0:e87aa4c49e95 | 740 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 741 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 742 | |
phungductung | 0:e87aa4c49e95 | 743 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 744 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 745 | } |
phungductung | 0:e87aa4c49e95 | 746 | |
phungductung | 0:e87aa4c49e95 | 747 | /** |
phungductung | 0:e87aa4c49e95 | 748 | * @brief Initializes the CRYP peripheral in AES GCM encryption mode then |
phungductung | 0:e87aa4c49e95 | 749 | * encrypt pPlainData. The cypher data are available in pCypherData. |
phungductung | 0:e87aa4c49e95 | 750 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 751 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 752 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 753 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 754 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 755 | * @param Timeout: Timeout duration |
phungductung | 0:e87aa4c49e95 | 756 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 757 | */ |
phungductung | 0:e87aa4c49e95 | 758 | HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Encrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 759 | { |
phungductung | 0:e87aa4c49e95 | 760 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 761 | |
phungductung | 0:e87aa4c49e95 | 762 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 763 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 764 | |
phungductung | 0:e87aa4c49e95 | 765 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 766 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 767 | |
phungductung | 0:e87aa4c49e95 | 768 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 769 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 770 | { |
phungductung | 0:e87aa4c49e95 | 771 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 772 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 773 | |
phungductung | 0:e87aa4c49e95 | 774 | /* Set the CRYP peripheral in AES GCM mode */ |
phungductung | 0:e87aa4c49e95 | 775 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT); |
phungductung | 0:e87aa4c49e95 | 776 | |
phungductung | 0:e87aa4c49e95 | 777 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 778 | CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect); |
phungductung | 0:e87aa4c49e95 | 779 | |
phungductung | 0:e87aa4c49e95 | 780 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 781 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 782 | |
phungductung | 0:e87aa4c49e95 | 783 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 784 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 785 | |
phungductung | 0:e87aa4c49e95 | 786 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 787 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 788 | |
phungductung | 0:e87aa4c49e95 | 789 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 790 | { |
phungductung | 0:e87aa4c49e95 | 791 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 792 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 793 | { |
phungductung | 0:e87aa4c49e95 | 794 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 795 | { |
phungductung | 0:e87aa4c49e95 | 796 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 797 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 798 | |
phungductung | 0:e87aa4c49e95 | 799 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 800 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 801 | |
phungductung | 0:e87aa4c49e95 | 802 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 803 | } |
phungductung | 0:e87aa4c49e95 | 804 | } |
phungductung | 0:e87aa4c49e95 | 805 | } |
phungductung | 0:e87aa4c49e95 | 806 | |
phungductung | 0:e87aa4c49e95 | 807 | /* Set the header phase */ |
phungductung | 0:e87aa4c49e95 | 808 | if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, Timeout) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 809 | { |
phungductung | 0:e87aa4c49e95 | 810 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 811 | } |
phungductung | 0:e87aa4c49e95 | 812 | |
phungductung | 0:e87aa4c49e95 | 813 | /* Disable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 814 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 815 | |
phungductung | 0:e87aa4c49e95 | 816 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 817 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 818 | |
phungductung | 0:e87aa4c49e95 | 819 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 820 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 821 | |
phungductung | 0:e87aa4c49e95 | 822 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 823 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 824 | |
phungductung | 0:e87aa4c49e95 | 825 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 826 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 827 | } |
phungductung | 0:e87aa4c49e95 | 828 | |
phungductung | 0:e87aa4c49e95 | 829 | /* Write Plain Data and Get Cypher Data */ |
phungductung | 0:e87aa4c49e95 | 830 | if(CRYPEx_GCMCCM_ProcessData(hcryp, pPlainData, Size, pCypherData, Timeout) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 831 | { |
phungductung | 0:e87aa4c49e95 | 832 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 833 | } |
phungductung | 0:e87aa4c49e95 | 834 | |
phungductung | 0:e87aa4c49e95 | 835 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 836 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 837 | |
phungductung | 0:e87aa4c49e95 | 838 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 839 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 840 | |
phungductung | 0:e87aa4c49e95 | 841 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 842 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 843 | } |
phungductung | 0:e87aa4c49e95 | 844 | |
phungductung | 0:e87aa4c49e95 | 845 | /** |
phungductung | 0:e87aa4c49e95 | 846 | * @brief Initializes the CRYP peripheral in AES GCM decryption mode then |
phungductung | 0:e87aa4c49e95 | 847 | * decrypted pCypherData. The cypher data are available in pPlainData. |
phungductung | 0:e87aa4c49e95 | 848 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 849 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 850 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 851 | * @param Size: Length of the cyphertext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 852 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 853 | * @param Timeout: Timeout duration |
phungductung | 0:e87aa4c49e95 | 854 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 855 | */ |
phungductung | 0:e87aa4c49e95 | 856 | HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Decrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 857 | { |
phungductung | 0:e87aa4c49e95 | 858 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 859 | |
phungductung | 0:e87aa4c49e95 | 860 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 861 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 862 | |
phungductung | 0:e87aa4c49e95 | 863 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 864 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 865 | |
phungductung | 0:e87aa4c49e95 | 866 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 867 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 868 | { |
phungductung | 0:e87aa4c49e95 | 869 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 870 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 871 | |
phungductung | 0:e87aa4c49e95 | 872 | /* Set the CRYP peripheral in AES GCM decryption mode */ |
phungductung | 0:e87aa4c49e95 | 873 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_DECRYPT); |
phungductung | 0:e87aa4c49e95 | 874 | |
phungductung | 0:e87aa4c49e95 | 875 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 876 | CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect); |
phungductung | 0:e87aa4c49e95 | 877 | |
phungductung | 0:e87aa4c49e95 | 878 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 879 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 880 | |
phungductung | 0:e87aa4c49e95 | 881 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 882 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 883 | |
phungductung | 0:e87aa4c49e95 | 884 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 885 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 886 | |
phungductung | 0:e87aa4c49e95 | 887 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 888 | { |
phungductung | 0:e87aa4c49e95 | 889 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 890 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 891 | { |
phungductung | 0:e87aa4c49e95 | 892 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 893 | { |
phungductung | 0:e87aa4c49e95 | 894 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 895 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 896 | |
phungductung | 0:e87aa4c49e95 | 897 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 898 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 899 | |
phungductung | 0:e87aa4c49e95 | 900 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 901 | } |
phungductung | 0:e87aa4c49e95 | 902 | } |
phungductung | 0:e87aa4c49e95 | 903 | } |
phungductung | 0:e87aa4c49e95 | 904 | |
phungductung | 0:e87aa4c49e95 | 905 | /* Set the header phase */ |
phungductung | 0:e87aa4c49e95 | 906 | if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, Timeout) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 907 | { |
phungductung | 0:e87aa4c49e95 | 908 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 909 | } |
phungductung | 0:e87aa4c49e95 | 910 | /* Disable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 911 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 912 | |
phungductung | 0:e87aa4c49e95 | 913 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 914 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 915 | |
phungductung | 0:e87aa4c49e95 | 916 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 917 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 918 | |
phungductung | 0:e87aa4c49e95 | 919 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 920 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 921 | } |
phungductung | 0:e87aa4c49e95 | 922 | |
phungductung | 0:e87aa4c49e95 | 923 | /* Write Plain Data and Get Cypher Data */ |
phungductung | 0:e87aa4c49e95 | 924 | if(CRYPEx_GCMCCM_ProcessData(hcryp, pCypherData, Size, pPlainData, Timeout) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 925 | { |
phungductung | 0:e87aa4c49e95 | 926 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 927 | } |
phungductung | 0:e87aa4c49e95 | 928 | |
phungductung | 0:e87aa4c49e95 | 929 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 930 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 931 | |
phungductung | 0:e87aa4c49e95 | 932 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 933 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 934 | |
phungductung | 0:e87aa4c49e95 | 935 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 936 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 937 | } |
phungductung | 0:e87aa4c49e95 | 938 | |
phungductung | 0:e87aa4c49e95 | 939 | /** |
phungductung | 0:e87aa4c49e95 | 940 | * @brief Computes the authentication TAG. |
phungductung | 0:e87aa4c49e95 | 941 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 942 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 943 | * @param Size: Total length of the plain/cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 944 | * @param AuthTag: Pointer to the authentication buffer |
phungductung | 0:e87aa4c49e95 | 945 | * @param Timeout: Timeout duration |
phungductung | 0:e87aa4c49e95 | 946 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 947 | */ |
phungductung | 0:e87aa4c49e95 | 948 | HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Finish(CRYP_HandleTypeDef *hcryp, uint32_t Size, uint8_t *AuthTag, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 949 | { |
phungductung | 0:e87aa4c49e95 | 950 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 951 | uint64_t headerlength = hcryp->Init.HeaderSize * 8; /* Header length in bits */ |
phungductung | 0:e87aa4c49e95 | 952 | uint64_t inputlength = Size * 8; /* input length in bits */ |
phungductung | 0:e87aa4c49e95 | 953 | uint32_t tagaddr = (uint32_t)AuthTag; |
phungductung | 0:e87aa4c49e95 | 954 | |
phungductung | 0:e87aa4c49e95 | 955 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 956 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 957 | |
phungductung | 0:e87aa4c49e95 | 958 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 959 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 960 | |
phungductung | 0:e87aa4c49e95 | 961 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 962 | if(hcryp->Phase == HAL_CRYP_PHASE_PROCESS) |
phungductung | 0:e87aa4c49e95 | 963 | { |
phungductung | 0:e87aa4c49e95 | 964 | /* Change the CRYP phase */ |
phungductung | 0:e87aa4c49e95 | 965 | hcryp->Phase = HAL_CRYP_PHASE_FINAL; |
phungductung | 0:e87aa4c49e95 | 966 | |
phungductung | 0:e87aa4c49e95 | 967 | /* Disable CRYP to start the final phase */ |
phungductung | 0:e87aa4c49e95 | 968 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 969 | |
phungductung | 0:e87aa4c49e95 | 970 | /* Select final phase */ |
phungductung | 0:e87aa4c49e95 | 971 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_FINAL); |
phungductung | 0:e87aa4c49e95 | 972 | |
phungductung | 0:e87aa4c49e95 | 973 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 974 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 975 | |
phungductung | 0:e87aa4c49e95 | 976 | /* Write the number of bits in header (64 bits) followed by the number of bits |
phungductung | 0:e87aa4c49e95 | 977 | in the payload */ |
phungductung | 0:e87aa4c49e95 | 978 | if(hcryp->Init.DataType == CRYP_DATATYPE_1B) |
phungductung | 0:e87aa4c49e95 | 979 | { |
phungductung | 0:e87aa4c49e95 | 980 | hcryp->Instance->DR = __RBIT(headerlength >> 32); |
phungductung | 0:e87aa4c49e95 | 981 | hcryp->Instance->DR = __RBIT(headerlength); |
phungductung | 0:e87aa4c49e95 | 982 | hcryp->Instance->DR = __RBIT(inputlength >> 32); |
phungductung | 0:e87aa4c49e95 | 983 | hcryp->Instance->DR = __RBIT(inputlength); |
phungductung | 0:e87aa4c49e95 | 984 | } |
phungductung | 0:e87aa4c49e95 | 985 | else if(hcryp->Init.DataType == CRYP_DATATYPE_8B) |
phungductung | 0:e87aa4c49e95 | 986 | { |
phungductung | 0:e87aa4c49e95 | 987 | hcryp->Instance->DR = __REV(headerlength >> 32); |
phungductung | 0:e87aa4c49e95 | 988 | hcryp->Instance->DR = __REV(headerlength); |
phungductung | 0:e87aa4c49e95 | 989 | hcryp->Instance->DR = __REV(inputlength >> 32); |
phungductung | 0:e87aa4c49e95 | 990 | hcryp->Instance->DR = __REV(inputlength); |
phungductung | 0:e87aa4c49e95 | 991 | } |
phungductung | 0:e87aa4c49e95 | 992 | else if(hcryp->Init.DataType == CRYP_DATATYPE_16B) |
phungductung | 0:e87aa4c49e95 | 993 | { |
phungductung | 0:e87aa4c49e95 | 994 | hcryp->Instance->DR = __ROR((uint32_t)(headerlength >> 32), 16); |
phungductung | 0:e87aa4c49e95 | 995 | hcryp->Instance->DR = __ROR((uint32_t)headerlength, 16); |
phungductung | 0:e87aa4c49e95 | 996 | hcryp->Instance->DR = __ROR((uint32_t)(inputlength >> 32), 16); |
phungductung | 0:e87aa4c49e95 | 997 | hcryp->Instance->DR = __ROR((uint32_t)inputlength, 16); |
phungductung | 0:e87aa4c49e95 | 998 | } |
phungductung | 0:e87aa4c49e95 | 999 | else if(hcryp->Init.DataType == CRYP_DATATYPE_32B) |
phungductung | 0:e87aa4c49e95 | 1000 | { |
phungductung | 0:e87aa4c49e95 | 1001 | hcryp->Instance->DR = (uint32_t)(headerlength >> 32); |
phungductung | 0:e87aa4c49e95 | 1002 | hcryp->Instance->DR = (uint32_t)(headerlength); |
phungductung | 0:e87aa4c49e95 | 1003 | hcryp->Instance->DR = (uint32_t)(inputlength >> 32); |
phungductung | 0:e87aa4c49e95 | 1004 | hcryp->Instance->DR = (uint32_t)(inputlength); |
phungductung | 0:e87aa4c49e95 | 1005 | } |
phungductung | 0:e87aa4c49e95 | 1006 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1007 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1008 | |
phungductung | 0:e87aa4c49e95 | 1009 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE)) |
phungductung | 0:e87aa4c49e95 | 1010 | { |
phungductung | 0:e87aa4c49e95 | 1011 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1012 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 1013 | { |
phungductung | 0:e87aa4c49e95 | 1014 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 1015 | { |
phungductung | 0:e87aa4c49e95 | 1016 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1017 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1018 | |
phungductung | 0:e87aa4c49e95 | 1019 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1020 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1021 | |
phungductung | 0:e87aa4c49e95 | 1022 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1023 | } |
phungductung | 0:e87aa4c49e95 | 1024 | } |
phungductung | 0:e87aa4c49e95 | 1025 | } |
phungductung | 0:e87aa4c49e95 | 1026 | |
phungductung | 0:e87aa4c49e95 | 1027 | /* Read the Auth TAG in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1028 | *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1029 | tagaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1030 | *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1031 | tagaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1032 | *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1033 | tagaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1034 | *(uint32_t*)(tagaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1035 | } |
phungductung | 0:e87aa4c49e95 | 1036 | |
phungductung | 0:e87aa4c49e95 | 1037 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1038 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1039 | |
phungductung | 0:e87aa4c49e95 | 1040 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1041 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1042 | |
phungductung | 0:e87aa4c49e95 | 1043 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1044 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1045 | } |
phungductung | 0:e87aa4c49e95 | 1046 | |
phungductung | 0:e87aa4c49e95 | 1047 | /** |
phungductung | 0:e87aa4c49e95 | 1048 | * @brief Computes the authentication TAG for AES CCM mode. |
phungductung | 0:e87aa4c49e95 | 1049 | * @note This API is called after HAL_AES_CCM_Encrypt()/HAL_AES_CCM_Decrypt() |
phungductung | 0:e87aa4c49e95 | 1050 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 1051 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 1052 | * @param AuthTag: Pointer to the authentication buffer |
phungductung | 0:e87aa4c49e95 | 1053 | * @param Timeout: Timeout duration |
phungductung | 0:e87aa4c49e95 | 1054 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 1055 | */ |
phungductung | 0:e87aa4c49e95 | 1056 | HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Finish(CRYP_HandleTypeDef *hcryp, uint8_t *AuthTag, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 1057 | { |
phungductung | 0:e87aa4c49e95 | 1058 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 1059 | uint32_t tagaddr = (uint32_t)AuthTag; |
phungductung | 0:e87aa4c49e95 | 1060 | uint32_t ctraddr = (uint32_t)hcryp->Init.pScratch; |
phungductung | 0:e87aa4c49e95 | 1061 | uint32_t temptag[4] = {0}; /* Temporary TAG (MAC) */ |
phungductung | 0:e87aa4c49e95 | 1062 | uint32_t loopcounter; |
phungductung | 0:e87aa4c49e95 | 1063 | |
phungductung | 0:e87aa4c49e95 | 1064 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 1065 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1066 | |
phungductung | 0:e87aa4c49e95 | 1067 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1068 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 1069 | |
phungductung | 0:e87aa4c49e95 | 1070 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 1071 | if(hcryp->Phase == HAL_CRYP_PHASE_PROCESS) |
phungductung | 0:e87aa4c49e95 | 1072 | { |
phungductung | 0:e87aa4c49e95 | 1073 | /* Change the CRYP phase */ |
phungductung | 0:e87aa4c49e95 | 1074 | hcryp->Phase = HAL_CRYP_PHASE_FINAL; |
phungductung | 0:e87aa4c49e95 | 1075 | |
phungductung | 0:e87aa4c49e95 | 1076 | /* Disable CRYP to start the final phase */ |
phungductung | 0:e87aa4c49e95 | 1077 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1078 | |
phungductung | 0:e87aa4c49e95 | 1079 | /* Select final phase */ |
phungductung | 0:e87aa4c49e95 | 1080 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_FINAL); |
phungductung | 0:e87aa4c49e95 | 1081 | |
phungductung | 0:e87aa4c49e95 | 1082 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1083 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1084 | |
phungductung | 0:e87aa4c49e95 | 1085 | /* Write the counter block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1086 | hcryp->Instance->DR = *(uint32_t*)ctraddr; |
phungductung | 0:e87aa4c49e95 | 1087 | ctraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1088 | hcryp->Instance->DR = *(uint32_t*)ctraddr; |
phungductung | 0:e87aa4c49e95 | 1089 | ctraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1090 | hcryp->Instance->DR = *(uint32_t*)ctraddr; |
phungductung | 0:e87aa4c49e95 | 1091 | ctraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1092 | hcryp->Instance->DR = *(uint32_t*)ctraddr; |
phungductung | 0:e87aa4c49e95 | 1093 | |
phungductung | 0:e87aa4c49e95 | 1094 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1095 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1096 | |
phungductung | 0:e87aa4c49e95 | 1097 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE)) |
phungductung | 0:e87aa4c49e95 | 1098 | { |
phungductung | 0:e87aa4c49e95 | 1099 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1100 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 1101 | { |
phungductung | 0:e87aa4c49e95 | 1102 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 1103 | { |
phungductung | 0:e87aa4c49e95 | 1104 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1105 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1106 | |
phungductung | 0:e87aa4c49e95 | 1107 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1108 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1109 | |
phungductung | 0:e87aa4c49e95 | 1110 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1111 | } |
phungductung | 0:e87aa4c49e95 | 1112 | } |
phungductung | 0:e87aa4c49e95 | 1113 | } |
phungductung | 0:e87aa4c49e95 | 1114 | |
phungductung | 0:e87aa4c49e95 | 1115 | /* Read the Auth TAG in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1116 | temptag[0] = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1117 | temptag[1] = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1118 | temptag[2] = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1119 | temptag[3] = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1120 | } |
phungductung | 0:e87aa4c49e95 | 1121 | |
phungductung | 0:e87aa4c49e95 | 1122 | /* Copy temporary authentication TAG in user TAG buffer */ |
phungductung | 0:e87aa4c49e95 | 1123 | for(loopcounter = 0; loopcounter < hcryp->Init.TagSize ; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1124 | { |
phungductung | 0:e87aa4c49e95 | 1125 | /* Set the authentication TAG buffer */ |
phungductung | 0:e87aa4c49e95 | 1126 | *((uint8_t*)tagaddr+loopcounter) = *((uint8_t*)temptag+loopcounter); |
phungductung | 0:e87aa4c49e95 | 1127 | } |
phungductung | 0:e87aa4c49e95 | 1128 | |
phungductung | 0:e87aa4c49e95 | 1129 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1130 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1131 | |
phungductung | 0:e87aa4c49e95 | 1132 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1133 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1134 | |
phungductung | 0:e87aa4c49e95 | 1135 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1136 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1137 | } |
phungductung | 0:e87aa4c49e95 | 1138 | |
phungductung | 0:e87aa4c49e95 | 1139 | /** |
phungductung | 0:e87aa4c49e95 | 1140 | * @brief Initializes the CRYP peripheral in AES CCM decryption mode then |
phungductung | 0:e87aa4c49e95 | 1141 | * decrypted pCypherData. The cypher data are available in pPlainData. |
phungductung | 0:e87aa4c49e95 | 1142 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 1143 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 1144 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 1145 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 1146 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 1147 | * @param Timeout: Timeout duration |
phungductung | 0:e87aa4c49e95 | 1148 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 1149 | */ |
phungductung | 0:e87aa4c49e95 | 1150 | HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Decrypt(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData, uint32_t Timeout) |
phungductung | 0:e87aa4c49e95 | 1151 | { |
phungductung | 0:e87aa4c49e95 | 1152 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 1153 | uint32_t headersize = hcryp->Init.HeaderSize; |
phungductung | 0:e87aa4c49e95 | 1154 | uint32_t headeraddr = (uint32_t)hcryp->Init.Header; |
phungductung | 0:e87aa4c49e95 | 1155 | uint32_t loopcounter = 0; |
phungductung | 0:e87aa4c49e95 | 1156 | uint32_t bufferidx = 0; |
phungductung | 0:e87aa4c49e95 | 1157 | uint8_t blockb0[16] = {0};/* Block B0 */ |
phungductung | 0:e87aa4c49e95 | 1158 | uint8_t ctr[16] = {0}; /* Counter */ |
phungductung | 0:e87aa4c49e95 | 1159 | uint32_t b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 1160 | |
phungductung | 0:e87aa4c49e95 | 1161 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 1162 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1163 | |
phungductung | 0:e87aa4c49e95 | 1164 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1165 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 1166 | |
phungductung | 0:e87aa4c49e95 | 1167 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 1168 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 1169 | { |
phungductung | 0:e87aa4c49e95 | 1170 | /************************ Formatting the header block *********************/ |
phungductung | 0:e87aa4c49e95 | 1171 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 1172 | { |
phungductung | 0:e87aa4c49e95 | 1173 | /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */ |
phungductung | 0:e87aa4c49e95 | 1174 | if(headersize < 65280) |
phungductung | 0:e87aa4c49e95 | 1175 | { |
phungductung | 0:e87aa4c49e95 | 1176 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 1177 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 1178 | headersize += 2; |
phungductung | 0:e87aa4c49e95 | 1179 | } |
phungductung | 0:e87aa4c49e95 | 1180 | else |
phungductung | 0:e87aa4c49e95 | 1181 | { |
phungductung | 0:e87aa4c49e95 | 1182 | /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */ |
phungductung | 0:e87aa4c49e95 | 1183 | hcryp->Init.pScratch[bufferidx++] = 0xFF; |
phungductung | 0:e87aa4c49e95 | 1184 | hcryp->Init.pScratch[bufferidx++] = 0xFE; |
phungductung | 0:e87aa4c49e95 | 1185 | hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000; |
phungductung | 0:e87aa4c49e95 | 1186 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000; |
phungductung | 0:e87aa4c49e95 | 1187 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00; |
phungductung | 0:e87aa4c49e95 | 1188 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff; |
phungductung | 0:e87aa4c49e95 | 1189 | headersize += 6; |
phungductung | 0:e87aa4c49e95 | 1190 | } |
phungductung | 0:e87aa4c49e95 | 1191 | /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */ |
phungductung | 0:e87aa4c49e95 | 1192 | for(loopcounter = 0; loopcounter < headersize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1193 | { |
phungductung | 0:e87aa4c49e95 | 1194 | hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1195 | } |
phungductung | 0:e87aa4c49e95 | 1196 | /* Check if the header size is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 1197 | if ((headersize % 16) != 0) |
phungductung | 0:e87aa4c49e95 | 1198 | { |
phungductung | 0:e87aa4c49e95 | 1199 | /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 1200 | for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1201 | { |
phungductung | 0:e87aa4c49e95 | 1202 | hcryp->Init.pScratch[loopcounter] = 0; |
phungductung | 0:e87aa4c49e95 | 1203 | } |
phungductung | 0:e87aa4c49e95 | 1204 | /* Set the header size to modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 1205 | headersize = ((headersize/16) + 1) * 16; |
phungductung | 0:e87aa4c49e95 | 1206 | } |
phungductung | 0:e87aa4c49e95 | 1207 | /* Set the pointer headeraddr to hcryp->Init.pScratch */ |
phungductung | 0:e87aa4c49e95 | 1208 | headeraddr = (uint32_t)hcryp->Init.pScratch; |
phungductung | 0:e87aa4c49e95 | 1209 | } |
phungductung | 0:e87aa4c49e95 | 1210 | /*********************** Formatting the block B0 **************************/ |
phungductung | 0:e87aa4c49e95 | 1211 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 1212 | { |
phungductung | 0:e87aa4c49e95 | 1213 | blockb0[0] = 0x40; |
phungductung | 0:e87aa4c49e95 | 1214 | } |
phungductung | 0:e87aa4c49e95 | 1215 | /* Flags byte */ |
phungductung | 0:e87aa4c49e95 | 1216 | /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */ |
phungductung | 0:e87aa4c49e95 | 1217 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3); |
phungductung | 0:e87aa4c49e95 | 1218 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07); |
phungductung | 0:e87aa4c49e95 | 1219 | |
phungductung | 0:e87aa4c49e95 | 1220 | for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1221 | { |
phungductung | 0:e87aa4c49e95 | 1222 | blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1223 | } |
phungductung | 0:e87aa4c49e95 | 1224 | for ( ; loopcounter < 13; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1225 | { |
phungductung | 0:e87aa4c49e95 | 1226 | blockb0[loopcounter+1] = 0; |
phungductung | 0:e87aa4c49e95 | 1227 | } |
phungductung | 0:e87aa4c49e95 | 1228 | |
phungductung | 0:e87aa4c49e95 | 1229 | blockb0[14] = (Size >> 8); |
phungductung | 0:e87aa4c49e95 | 1230 | blockb0[15] = (Size & 0xFF); |
phungductung | 0:e87aa4c49e95 | 1231 | |
phungductung | 0:e87aa4c49e95 | 1232 | /************************* Formatting the initial counter *****************/ |
phungductung | 0:e87aa4c49e95 | 1233 | /* Byte 0: |
phungductung | 0:e87aa4c49e95 | 1234 | Bits 7 and 6 are reserved and shall be set to 0 |
phungductung | 0:e87aa4c49e95 | 1235 | Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter |
phungductung | 0:e87aa4c49e95 | 1236 | blocks are distinct from B0 |
phungductung | 0:e87aa4c49e95 | 1237 | Bits 0, 1, and 2 contain the same encoding of q as in B0 |
phungductung | 0:e87aa4c49e95 | 1238 | */ |
phungductung | 0:e87aa4c49e95 | 1239 | ctr[0] = blockb0[0] & 0x07; |
phungductung | 0:e87aa4c49e95 | 1240 | /* byte 1 to NonceSize is the IV (Nonce) */ |
phungductung | 0:e87aa4c49e95 | 1241 | for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1242 | { |
phungductung | 0:e87aa4c49e95 | 1243 | ctr[loopcounter] = blockb0[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1244 | } |
phungductung | 0:e87aa4c49e95 | 1245 | /* Set the LSB to 1 */ |
phungductung | 0:e87aa4c49e95 | 1246 | ctr[15] |= 0x01; |
phungductung | 0:e87aa4c49e95 | 1247 | |
phungductung | 0:e87aa4c49e95 | 1248 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 1249 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 1250 | |
phungductung | 0:e87aa4c49e95 | 1251 | /* Set the CRYP peripheral in AES CCM mode */ |
phungductung | 0:e87aa4c49e95 | 1252 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_DECRYPT); |
phungductung | 0:e87aa4c49e95 | 1253 | |
phungductung | 0:e87aa4c49e95 | 1254 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 1255 | CRYPEx_GCMCCM_SetInitVector(hcryp, ctr); |
phungductung | 0:e87aa4c49e95 | 1256 | |
phungductung | 0:e87aa4c49e95 | 1257 | /* Select init phase */ |
phungductung | 0:e87aa4c49e95 | 1258 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT); |
phungductung | 0:e87aa4c49e95 | 1259 | |
phungductung | 0:e87aa4c49e95 | 1260 | b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 1261 | /* Write the blockb0 block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1262 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1263 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 1264 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1265 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 1266 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1267 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 1268 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1269 | |
phungductung | 0:e87aa4c49e95 | 1270 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1271 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1272 | |
phungductung | 0:e87aa4c49e95 | 1273 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1274 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1275 | |
phungductung | 0:e87aa4c49e95 | 1276 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 1277 | { |
phungductung | 0:e87aa4c49e95 | 1278 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1279 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 1280 | { |
phungductung | 0:e87aa4c49e95 | 1281 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 1282 | { |
phungductung | 0:e87aa4c49e95 | 1283 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1284 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1285 | |
phungductung | 0:e87aa4c49e95 | 1286 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1287 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1288 | |
phungductung | 0:e87aa4c49e95 | 1289 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1290 | } |
phungductung | 0:e87aa4c49e95 | 1291 | } |
phungductung | 0:e87aa4c49e95 | 1292 | } |
phungductung | 0:e87aa4c49e95 | 1293 | /***************************** Header phase *******************************/ |
phungductung | 0:e87aa4c49e95 | 1294 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 1295 | { |
phungductung | 0:e87aa4c49e95 | 1296 | /* Select header phase */ |
phungductung | 0:e87aa4c49e95 | 1297 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER); |
phungductung | 0:e87aa4c49e95 | 1298 | |
phungductung | 0:e87aa4c49e95 | 1299 | /* Enable Crypto processor */ |
phungductung | 0:e87aa4c49e95 | 1300 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1301 | |
phungductung | 0:e87aa4c49e95 | 1302 | for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16) |
phungductung | 0:e87aa4c49e95 | 1303 | { |
phungductung | 0:e87aa4c49e95 | 1304 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1305 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1306 | |
phungductung | 0:e87aa4c49e95 | 1307 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM)) |
phungductung | 0:e87aa4c49e95 | 1308 | { |
phungductung | 0:e87aa4c49e95 | 1309 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1310 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 1311 | { |
phungductung | 0:e87aa4c49e95 | 1312 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 1313 | { |
phungductung | 0:e87aa4c49e95 | 1314 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1315 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1316 | |
phungductung | 0:e87aa4c49e95 | 1317 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1318 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1319 | |
phungductung | 0:e87aa4c49e95 | 1320 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1321 | } |
phungductung | 0:e87aa4c49e95 | 1322 | } |
phungductung | 0:e87aa4c49e95 | 1323 | } |
phungductung | 0:e87aa4c49e95 | 1324 | /* Write the header block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1325 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1326 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1327 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1328 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1329 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1330 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1331 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1332 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1333 | } |
phungductung | 0:e87aa4c49e95 | 1334 | |
phungductung | 0:e87aa4c49e95 | 1335 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1336 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1337 | |
phungductung | 0:e87aa4c49e95 | 1338 | while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY) |
phungductung | 0:e87aa4c49e95 | 1339 | { |
phungductung | 0:e87aa4c49e95 | 1340 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1341 | if(Timeout != HAL_MAX_DELAY) |
phungductung | 0:e87aa4c49e95 | 1342 | { |
phungductung | 0:e87aa4c49e95 | 1343 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
phungductung | 0:e87aa4c49e95 | 1344 | { |
phungductung | 0:e87aa4c49e95 | 1345 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1346 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1347 | |
phungductung | 0:e87aa4c49e95 | 1348 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1349 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1350 | |
phungductung | 0:e87aa4c49e95 | 1351 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1352 | } |
phungductung | 0:e87aa4c49e95 | 1353 | } |
phungductung | 0:e87aa4c49e95 | 1354 | } |
phungductung | 0:e87aa4c49e95 | 1355 | } |
phungductung | 0:e87aa4c49e95 | 1356 | /* Save formatted counter into the scratch buffer pScratch */ |
phungductung | 0:e87aa4c49e95 | 1357 | for(loopcounter = 0; (loopcounter < 16); loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1358 | { |
phungductung | 0:e87aa4c49e95 | 1359 | hcryp->Init.pScratch[loopcounter] = ctr[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1360 | } |
phungductung | 0:e87aa4c49e95 | 1361 | /* Reset bit 0 */ |
phungductung | 0:e87aa4c49e95 | 1362 | hcryp->Init.pScratch[15] &= 0xfe; |
phungductung | 0:e87aa4c49e95 | 1363 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 1364 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 1365 | |
phungductung | 0:e87aa4c49e95 | 1366 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 1367 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 1368 | |
phungductung | 0:e87aa4c49e95 | 1369 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1370 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1371 | |
phungductung | 0:e87aa4c49e95 | 1372 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 1373 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 1374 | } |
phungductung | 0:e87aa4c49e95 | 1375 | |
phungductung | 0:e87aa4c49e95 | 1376 | /* Write Plain Data and Get Cypher Data */ |
phungductung | 0:e87aa4c49e95 | 1377 | if(CRYPEx_GCMCCM_ProcessData(hcryp, pCypherData, Size, pPlainData, Timeout) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 1378 | { |
phungductung | 0:e87aa4c49e95 | 1379 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1380 | } |
phungductung | 0:e87aa4c49e95 | 1381 | |
phungductung | 0:e87aa4c49e95 | 1382 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1383 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1384 | |
phungductung | 0:e87aa4c49e95 | 1385 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1386 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1387 | |
phungductung | 0:e87aa4c49e95 | 1388 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1389 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1390 | } |
phungductung | 0:e87aa4c49e95 | 1391 | |
phungductung | 0:e87aa4c49e95 | 1392 | /** |
phungductung | 0:e87aa4c49e95 | 1393 | * @brief Initializes the CRYP peripheral in AES GCM encryption mode using IT. |
phungductung | 0:e87aa4c49e95 | 1394 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 1395 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 1396 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 1397 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 1398 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 1399 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 1400 | */ |
phungductung | 0:e87aa4c49e95 | 1401 | HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Encrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData) |
phungductung | 0:e87aa4c49e95 | 1402 | { |
phungductung | 0:e87aa4c49e95 | 1403 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 1404 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 1405 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 1406 | |
phungductung | 0:e87aa4c49e95 | 1407 | if(hcryp->State == HAL_CRYP_STATE_READY) |
phungductung | 0:e87aa4c49e95 | 1408 | { |
phungductung | 0:e87aa4c49e95 | 1409 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 1410 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1411 | |
phungductung | 0:e87aa4c49e95 | 1412 | /* Get the buffer addresses and sizes */ |
phungductung | 0:e87aa4c49e95 | 1413 | hcryp->CrypInCount = Size; |
phungductung | 0:e87aa4c49e95 | 1414 | hcryp->pCrypInBuffPtr = pPlainData; |
phungductung | 0:e87aa4c49e95 | 1415 | hcryp->pCrypOutBuffPtr = pCypherData; |
phungductung | 0:e87aa4c49e95 | 1416 | hcryp->CrypOutCount = Size; |
phungductung | 0:e87aa4c49e95 | 1417 | |
phungductung | 0:e87aa4c49e95 | 1418 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1419 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 1420 | |
phungductung | 0:e87aa4c49e95 | 1421 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 1422 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 1423 | { |
phungductung | 0:e87aa4c49e95 | 1424 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 1425 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 1426 | |
phungductung | 0:e87aa4c49e95 | 1427 | /* Set the CRYP peripheral in AES GCM mode */ |
phungductung | 0:e87aa4c49e95 | 1428 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT); |
phungductung | 0:e87aa4c49e95 | 1429 | |
phungductung | 0:e87aa4c49e95 | 1430 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 1431 | CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect); |
phungductung | 0:e87aa4c49e95 | 1432 | |
phungductung | 0:e87aa4c49e95 | 1433 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 1434 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 1435 | |
phungductung | 0:e87aa4c49e95 | 1436 | /* Enable CRYP to start the init phase */ |
phungductung | 0:e87aa4c49e95 | 1437 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1438 | |
phungductung | 0:e87aa4c49e95 | 1439 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1440 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1441 | |
phungductung | 0:e87aa4c49e95 | 1442 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 1443 | { |
phungductung | 0:e87aa4c49e95 | 1444 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1445 | |
phungductung | 0:e87aa4c49e95 | 1446 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 1447 | { |
phungductung | 0:e87aa4c49e95 | 1448 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1449 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1450 | |
phungductung | 0:e87aa4c49e95 | 1451 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1452 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1453 | |
phungductung | 0:e87aa4c49e95 | 1454 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1455 | |
phungductung | 0:e87aa4c49e95 | 1456 | } |
phungductung | 0:e87aa4c49e95 | 1457 | } |
phungductung | 0:e87aa4c49e95 | 1458 | |
phungductung | 0:e87aa4c49e95 | 1459 | /* Set the header phase */ |
phungductung | 0:e87aa4c49e95 | 1460 | if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 1461 | { |
phungductung | 0:e87aa4c49e95 | 1462 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1463 | } |
phungductung | 0:e87aa4c49e95 | 1464 | /* Disable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1465 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1466 | |
phungductung | 0:e87aa4c49e95 | 1467 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 1468 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 1469 | |
phungductung | 0:e87aa4c49e95 | 1470 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 1471 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 1472 | |
phungductung | 0:e87aa4c49e95 | 1473 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 1474 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 1475 | } |
phungductung | 0:e87aa4c49e95 | 1476 | |
phungductung | 0:e87aa4c49e95 | 1477 | if(Size != 0) |
phungductung | 0:e87aa4c49e95 | 1478 | { |
phungductung | 0:e87aa4c49e95 | 1479 | /* Enable Interrupts */ |
phungductung | 0:e87aa4c49e95 | 1480 | __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 1481 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1482 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1483 | } |
phungductung | 0:e87aa4c49e95 | 1484 | else |
phungductung | 0:e87aa4c49e95 | 1485 | { |
phungductung | 0:e87aa4c49e95 | 1486 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 1487 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1488 | /* Change the CRYP state and phase */ |
phungductung | 0:e87aa4c49e95 | 1489 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1490 | } |
phungductung | 0:e87aa4c49e95 | 1491 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1492 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1493 | } |
phungductung | 0:e87aa4c49e95 | 1494 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI)) |
phungductung | 0:e87aa4c49e95 | 1495 | { |
phungductung | 0:e87aa4c49e95 | 1496 | inputaddr = (uint32_t)hcryp->pCrypInBuffPtr; |
phungductung | 0:e87aa4c49e95 | 1497 | /* Write the Input block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1498 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1499 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1500 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1501 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1502 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1503 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1504 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1505 | hcryp->pCrypInBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 1506 | hcryp->CrypInCount -= 16; |
phungductung | 0:e87aa4c49e95 | 1507 | if(hcryp->CrypInCount == 0) |
phungductung | 0:e87aa4c49e95 | 1508 | { |
phungductung | 0:e87aa4c49e95 | 1509 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI); |
phungductung | 0:e87aa4c49e95 | 1510 | /* Call the Input data transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 1511 | HAL_CRYP_InCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 1512 | } |
phungductung | 0:e87aa4c49e95 | 1513 | } |
phungductung | 0:e87aa4c49e95 | 1514 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI)) |
phungductung | 0:e87aa4c49e95 | 1515 | { |
phungductung | 0:e87aa4c49e95 | 1516 | outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr; |
phungductung | 0:e87aa4c49e95 | 1517 | /* Read the Output block from the Output FIFO */ |
phungductung | 0:e87aa4c49e95 | 1518 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1519 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1520 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1521 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1522 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1523 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1524 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1525 | hcryp->pCrypOutBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 1526 | hcryp->CrypOutCount -= 16; |
phungductung | 0:e87aa4c49e95 | 1527 | if(hcryp->CrypOutCount == 0) |
phungductung | 0:e87aa4c49e95 | 1528 | { |
phungductung | 0:e87aa4c49e95 | 1529 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 1530 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1531 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1532 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1533 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1534 | /* Call Input transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 1535 | HAL_CRYP_OutCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 1536 | } |
phungductung | 0:e87aa4c49e95 | 1537 | } |
phungductung | 0:e87aa4c49e95 | 1538 | |
phungductung | 0:e87aa4c49e95 | 1539 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1540 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1541 | } |
phungductung | 0:e87aa4c49e95 | 1542 | |
phungductung | 0:e87aa4c49e95 | 1543 | /** |
phungductung | 0:e87aa4c49e95 | 1544 | * @brief Initializes the CRYP peripheral in AES CCM encryption mode using interrupt. |
phungductung | 0:e87aa4c49e95 | 1545 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 1546 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 1547 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 1548 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 1549 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 1550 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 1551 | */ |
phungductung | 0:e87aa4c49e95 | 1552 | HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Encrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData) |
phungductung | 0:e87aa4c49e95 | 1553 | { |
phungductung | 0:e87aa4c49e95 | 1554 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 1555 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 1556 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 1557 | |
phungductung | 0:e87aa4c49e95 | 1558 | uint32_t headersize = hcryp->Init.HeaderSize; |
phungductung | 0:e87aa4c49e95 | 1559 | uint32_t headeraddr = (uint32_t)hcryp->Init.Header; |
phungductung | 0:e87aa4c49e95 | 1560 | uint32_t loopcounter = 0; |
phungductung | 0:e87aa4c49e95 | 1561 | uint32_t bufferidx = 0; |
phungductung | 0:e87aa4c49e95 | 1562 | uint8_t blockb0[16] = {0};/* Block B0 */ |
phungductung | 0:e87aa4c49e95 | 1563 | uint8_t ctr[16] = {0}; /* Counter */ |
phungductung | 0:e87aa4c49e95 | 1564 | uint32_t b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 1565 | |
phungductung | 0:e87aa4c49e95 | 1566 | if(hcryp->State == HAL_CRYP_STATE_READY) |
phungductung | 0:e87aa4c49e95 | 1567 | { |
phungductung | 0:e87aa4c49e95 | 1568 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 1569 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1570 | |
phungductung | 0:e87aa4c49e95 | 1571 | hcryp->CrypInCount = Size; |
phungductung | 0:e87aa4c49e95 | 1572 | hcryp->pCrypInBuffPtr = pPlainData; |
phungductung | 0:e87aa4c49e95 | 1573 | hcryp->pCrypOutBuffPtr = pCypherData; |
phungductung | 0:e87aa4c49e95 | 1574 | hcryp->CrypOutCount = Size; |
phungductung | 0:e87aa4c49e95 | 1575 | |
phungductung | 0:e87aa4c49e95 | 1576 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1577 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 1578 | |
phungductung | 0:e87aa4c49e95 | 1579 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 1580 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 1581 | { |
phungductung | 0:e87aa4c49e95 | 1582 | /************************ Formatting the header block *******************/ |
phungductung | 0:e87aa4c49e95 | 1583 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 1584 | { |
phungductung | 0:e87aa4c49e95 | 1585 | /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */ |
phungductung | 0:e87aa4c49e95 | 1586 | if(headersize < 65280) |
phungductung | 0:e87aa4c49e95 | 1587 | { |
phungductung | 0:e87aa4c49e95 | 1588 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 1589 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 1590 | headersize += 2; |
phungductung | 0:e87aa4c49e95 | 1591 | } |
phungductung | 0:e87aa4c49e95 | 1592 | else |
phungductung | 0:e87aa4c49e95 | 1593 | { |
phungductung | 0:e87aa4c49e95 | 1594 | /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */ |
phungductung | 0:e87aa4c49e95 | 1595 | hcryp->Init.pScratch[bufferidx++] = 0xFF; |
phungductung | 0:e87aa4c49e95 | 1596 | hcryp->Init.pScratch[bufferidx++] = 0xFE; |
phungductung | 0:e87aa4c49e95 | 1597 | hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000; |
phungductung | 0:e87aa4c49e95 | 1598 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000; |
phungductung | 0:e87aa4c49e95 | 1599 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00; |
phungductung | 0:e87aa4c49e95 | 1600 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff; |
phungductung | 0:e87aa4c49e95 | 1601 | headersize += 6; |
phungductung | 0:e87aa4c49e95 | 1602 | } |
phungductung | 0:e87aa4c49e95 | 1603 | /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */ |
phungductung | 0:e87aa4c49e95 | 1604 | for(loopcounter = 0; loopcounter < headersize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1605 | { |
phungductung | 0:e87aa4c49e95 | 1606 | hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1607 | } |
phungductung | 0:e87aa4c49e95 | 1608 | /* Check if the header size is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 1609 | if ((headersize % 16) != 0) |
phungductung | 0:e87aa4c49e95 | 1610 | { |
phungductung | 0:e87aa4c49e95 | 1611 | /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 1612 | for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1613 | { |
phungductung | 0:e87aa4c49e95 | 1614 | hcryp->Init.pScratch[loopcounter] = 0; |
phungductung | 0:e87aa4c49e95 | 1615 | } |
phungductung | 0:e87aa4c49e95 | 1616 | /* Set the header size to modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 1617 | headersize = ((headersize/16) + 1) * 16; |
phungductung | 0:e87aa4c49e95 | 1618 | } |
phungductung | 0:e87aa4c49e95 | 1619 | /* Set the pointer headeraddr to hcryp->Init.pScratch */ |
phungductung | 0:e87aa4c49e95 | 1620 | headeraddr = (uint32_t)hcryp->Init.pScratch; |
phungductung | 0:e87aa4c49e95 | 1621 | } |
phungductung | 0:e87aa4c49e95 | 1622 | /*********************** Formatting the block B0 ************************/ |
phungductung | 0:e87aa4c49e95 | 1623 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 1624 | { |
phungductung | 0:e87aa4c49e95 | 1625 | blockb0[0] = 0x40; |
phungductung | 0:e87aa4c49e95 | 1626 | } |
phungductung | 0:e87aa4c49e95 | 1627 | /* Flags byte */ |
phungductung | 0:e87aa4c49e95 | 1628 | /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */ |
phungductung | 0:e87aa4c49e95 | 1629 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3); |
phungductung | 0:e87aa4c49e95 | 1630 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07); |
phungductung | 0:e87aa4c49e95 | 1631 | |
phungductung | 0:e87aa4c49e95 | 1632 | for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1633 | { |
phungductung | 0:e87aa4c49e95 | 1634 | blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1635 | } |
phungductung | 0:e87aa4c49e95 | 1636 | for ( ; loopcounter < 13; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1637 | { |
phungductung | 0:e87aa4c49e95 | 1638 | blockb0[loopcounter+1] = 0; |
phungductung | 0:e87aa4c49e95 | 1639 | } |
phungductung | 0:e87aa4c49e95 | 1640 | |
phungductung | 0:e87aa4c49e95 | 1641 | blockb0[14] = (Size >> 8); |
phungductung | 0:e87aa4c49e95 | 1642 | blockb0[15] = (Size & 0xFF); |
phungductung | 0:e87aa4c49e95 | 1643 | |
phungductung | 0:e87aa4c49e95 | 1644 | /************************* Formatting the initial counter ***************/ |
phungductung | 0:e87aa4c49e95 | 1645 | /* Byte 0: |
phungductung | 0:e87aa4c49e95 | 1646 | Bits 7 and 6 are reserved and shall be set to 0 |
phungductung | 0:e87aa4c49e95 | 1647 | Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter |
phungductung | 0:e87aa4c49e95 | 1648 | blocks are distinct from B0 |
phungductung | 0:e87aa4c49e95 | 1649 | Bits 0, 1, and 2 contain the same encoding of q as in B0 |
phungductung | 0:e87aa4c49e95 | 1650 | */ |
phungductung | 0:e87aa4c49e95 | 1651 | ctr[0] = blockb0[0] & 0x07; |
phungductung | 0:e87aa4c49e95 | 1652 | /* byte 1 to NonceSize is the IV (Nonce) */ |
phungductung | 0:e87aa4c49e95 | 1653 | for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1654 | { |
phungductung | 0:e87aa4c49e95 | 1655 | ctr[loopcounter] = blockb0[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1656 | } |
phungductung | 0:e87aa4c49e95 | 1657 | /* Set the LSB to 1 */ |
phungductung | 0:e87aa4c49e95 | 1658 | ctr[15] |= 0x01; |
phungductung | 0:e87aa4c49e95 | 1659 | |
phungductung | 0:e87aa4c49e95 | 1660 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 1661 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 1662 | |
phungductung | 0:e87aa4c49e95 | 1663 | /* Set the CRYP peripheral in AES CCM mode */ |
phungductung | 0:e87aa4c49e95 | 1664 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT); |
phungductung | 0:e87aa4c49e95 | 1665 | |
phungductung | 0:e87aa4c49e95 | 1666 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 1667 | CRYPEx_GCMCCM_SetInitVector(hcryp, ctr); |
phungductung | 0:e87aa4c49e95 | 1668 | |
phungductung | 0:e87aa4c49e95 | 1669 | /* Select init phase */ |
phungductung | 0:e87aa4c49e95 | 1670 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT); |
phungductung | 0:e87aa4c49e95 | 1671 | |
phungductung | 0:e87aa4c49e95 | 1672 | b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 1673 | /* Write the blockb0 block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1674 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1675 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 1676 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1677 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 1678 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1679 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 1680 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 1681 | |
phungductung | 0:e87aa4c49e95 | 1682 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1683 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1684 | |
phungductung | 0:e87aa4c49e95 | 1685 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1686 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1687 | |
phungductung | 0:e87aa4c49e95 | 1688 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 1689 | { |
phungductung | 0:e87aa4c49e95 | 1690 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1691 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 1692 | { |
phungductung | 0:e87aa4c49e95 | 1693 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1694 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1695 | |
phungductung | 0:e87aa4c49e95 | 1696 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1697 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1698 | |
phungductung | 0:e87aa4c49e95 | 1699 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1700 | } |
phungductung | 0:e87aa4c49e95 | 1701 | } |
phungductung | 0:e87aa4c49e95 | 1702 | /***************************** Header phase *****************************/ |
phungductung | 0:e87aa4c49e95 | 1703 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 1704 | { |
phungductung | 0:e87aa4c49e95 | 1705 | /* Select header phase */ |
phungductung | 0:e87aa4c49e95 | 1706 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER); |
phungductung | 0:e87aa4c49e95 | 1707 | |
phungductung | 0:e87aa4c49e95 | 1708 | /* Enable Crypto processor */ |
phungductung | 0:e87aa4c49e95 | 1709 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1710 | |
phungductung | 0:e87aa4c49e95 | 1711 | for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16) |
phungductung | 0:e87aa4c49e95 | 1712 | { |
phungductung | 0:e87aa4c49e95 | 1713 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1714 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1715 | |
phungductung | 0:e87aa4c49e95 | 1716 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM)) |
phungductung | 0:e87aa4c49e95 | 1717 | { |
phungductung | 0:e87aa4c49e95 | 1718 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1719 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 1720 | { |
phungductung | 0:e87aa4c49e95 | 1721 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1722 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1723 | |
phungductung | 0:e87aa4c49e95 | 1724 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1725 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1726 | |
phungductung | 0:e87aa4c49e95 | 1727 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1728 | } |
phungductung | 0:e87aa4c49e95 | 1729 | } |
phungductung | 0:e87aa4c49e95 | 1730 | /* Write the header block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1731 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1732 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1733 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1734 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1735 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1736 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1737 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 1738 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 1739 | } |
phungductung | 0:e87aa4c49e95 | 1740 | |
phungductung | 0:e87aa4c49e95 | 1741 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1742 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1743 | |
phungductung | 0:e87aa4c49e95 | 1744 | while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY) |
phungductung | 0:e87aa4c49e95 | 1745 | { |
phungductung | 0:e87aa4c49e95 | 1746 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1747 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 1748 | { |
phungductung | 0:e87aa4c49e95 | 1749 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1750 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1751 | |
phungductung | 0:e87aa4c49e95 | 1752 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1753 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1754 | |
phungductung | 0:e87aa4c49e95 | 1755 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1756 | } |
phungductung | 0:e87aa4c49e95 | 1757 | } |
phungductung | 0:e87aa4c49e95 | 1758 | } |
phungductung | 0:e87aa4c49e95 | 1759 | /* Save formatted counter into the scratch buffer pScratch */ |
phungductung | 0:e87aa4c49e95 | 1760 | for(loopcounter = 0; (loopcounter < 16); loopcounter++) |
phungductung | 0:e87aa4c49e95 | 1761 | { |
phungductung | 0:e87aa4c49e95 | 1762 | hcryp->Init.pScratch[loopcounter] = ctr[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 1763 | } |
phungductung | 0:e87aa4c49e95 | 1764 | /* Reset bit 0 */ |
phungductung | 0:e87aa4c49e95 | 1765 | hcryp->Init.pScratch[15] &= 0xfe; |
phungductung | 0:e87aa4c49e95 | 1766 | |
phungductung | 0:e87aa4c49e95 | 1767 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 1768 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 1769 | |
phungductung | 0:e87aa4c49e95 | 1770 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 1771 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 1772 | |
phungductung | 0:e87aa4c49e95 | 1773 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 1774 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 1775 | } |
phungductung | 0:e87aa4c49e95 | 1776 | |
phungductung | 0:e87aa4c49e95 | 1777 | if(Size != 0) |
phungductung | 0:e87aa4c49e95 | 1778 | { |
phungductung | 0:e87aa4c49e95 | 1779 | /* Enable Interrupts */ |
phungductung | 0:e87aa4c49e95 | 1780 | __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 1781 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1782 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1783 | } |
phungductung | 0:e87aa4c49e95 | 1784 | else |
phungductung | 0:e87aa4c49e95 | 1785 | { |
phungductung | 0:e87aa4c49e95 | 1786 | /* Change the CRYP state and phase */ |
phungductung | 0:e87aa4c49e95 | 1787 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1788 | } |
phungductung | 0:e87aa4c49e95 | 1789 | |
phungductung | 0:e87aa4c49e95 | 1790 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1791 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1792 | } |
phungductung | 0:e87aa4c49e95 | 1793 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI)) |
phungductung | 0:e87aa4c49e95 | 1794 | { |
phungductung | 0:e87aa4c49e95 | 1795 | inputaddr = (uint32_t)hcryp->pCrypInBuffPtr; |
phungductung | 0:e87aa4c49e95 | 1796 | /* Write the Input block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1797 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1798 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1799 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1800 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1801 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1802 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1803 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1804 | hcryp->pCrypInBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 1805 | hcryp->CrypInCount -= 16; |
phungductung | 0:e87aa4c49e95 | 1806 | if(hcryp->CrypInCount == 0) |
phungductung | 0:e87aa4c49e95 | 1807 | { |
phungductung | 0:e87aa4c49e95 | 1808 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI); |
phungductung | 0:e87aa4c49e95 | 1809 | /* Call Input transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 1810 | HAL_CRYP_InCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 1811 | } |
phungductung | 0:e87aa4c49e95 | 1812 | } |
phungductung | 0:e87aa4c49e95 | 1813 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI)) |
phungductung | 0:e87aa4c49e95 | 1814 | { |
phungductung | 0:e87aa4c49e95 | 1815 | outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr; |
phungductung | 0:e87aa4c49e95 | 1816 | /* Read the Output block from the Output FIFO */ |
phungductung | 0:e87aa4c49e95 | 1817 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1818 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1819 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1820 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1821 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1822 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1823 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1824 | hcryp->pCrypOutBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 1825 | hcryp->CrypOutCount -= 16; |
phungductung | 0:e87aa4c49e95 | 1826 | if(hcryp->CrypOutCount == 0) |
phungductung | 0:e87aa4c49e95 | 1827 | { |
phungductung | 0:e87aa4c49e95 | 1828 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 1829 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1830 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1831 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1832 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1833 | /* Call Input transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 1834 | HAL_CRYP_OutCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 1835 | } |
phungductung | 0:e87aa4c49e95 | 1836 | } |
phungductung | 0:e87aa4c49e95 | 1837 | |
phungductung | 0:e87aa4c49e95 | 1838 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1839 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1840 | } |
phungductung | 0:e87aa4c49e95 | 1841 | |
phungductung | 0:e87aa4c49e95 | 1842 | /** |
phungductung | 0:e87aa4c49e95 | 1843 | * @brief Initializes the CRYP peripheral in AES GCM decryption mode using IT. |
phungductung | 0:e87aa4c49e95 | 1844 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 1845 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 1846 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 1847 | * @param Size: Length of the cyphertext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 1848 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 1849 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 1850 | */ |
phungductung | 0:e87aa4c49e95 | 1851 | HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Decrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData) |
phungductung | 0:e87aa4c49e95 | 1852 | { |
phungductung | 0:e87aa4c49e95 | 1853 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 1854 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 1855 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 1856 | |
phungductung | 0:e87aa4c49e95 | 1857 | if(hcryp->State == HAL_CRYP_STATE_READY) |
phungductung | 0:e87aa4c49e95 | 1858 | { |
phungductung | 0:e87aa4c49e95 | 1859 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 1860 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1861 | |
phungductung | 0:e87aa4c49e95 | 1862 | /* Get the buffer addresses and sizes */ |
phungductung | 0:e87aa4c49e95 | 1863 | hcryp->CrypInCount = Size; |
phungductung | 0:e87aa4c49e95 | 1864 | hcryp->pCrypInBuffPtr = pCypherData; |
phungductung | 0:e87aa4c49e95 | 1865 | hcryp->pCrypOutBuffPtr = pPlainData; |
phungductung | 0:e87aa4c49e95 | 1866 | hcryp->CrypOutCount = Size; |
phungductung | 0:e87aa4c49e95 | 1867 | |
phungductung | 0:e87aa4c49e95 | 1868 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1869 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 1870 | |
phungductung | 0:e87aa4c49e95 | 1871 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 1872 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 1873 | { |
phungductung | 0:e87aa4c49e95 | 1874 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 1875 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 1876 | |
phungductung | 0:e87aa4c49e95 | 1877 | /* Set the CRYP peripheral in AES GCM decryption mode */ |
phungductung | 0:e87aa4c49e95 | 1878 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_DECRYPT); |
phungductung | 0:e87aa4c49e95 | 1879 | |
phungductung | 0:e87aa4c49e95 | 1880 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 1881 | CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect); |
phungductung | 0:e87aa4c49e95 | 1882 | |
phungductung | 0:e87aa4c49e95 | 1883 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 1884 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 1885 | |
phungductung | 0:e87aa4c49e95 | 1886 | /* Enable CRYP to start the init phase */ |
phungductung | 0:e87aa4c49e95 | 1887 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1888 | |
phungductung | 0:e87aa4c49e95 | 1889 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 1890 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 1891 | |
phungductung | 0:e87aa4c49e95 | 1892 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 1893 | { |
phungductung | 0:e87aa4c49e95 | 1894 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 1895 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 1896 | { |
phungductung | 0:e87aa4c49e95 | 1897 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 1898 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1899 | |
phungductung | 0:e87aa4c49e95 | 1900 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1901 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1902 | |
phungductung | 0:e87aa4c49e95 | 1903 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1904 | } |
phungductung | 0:e87aa4c49e95 | 1905 | } |
phungductung | 0:e87aa4c49e95 | 1906 | |
phungductung | 0:e87aa4c49e95 | 1907 | /* Set the header phase */ |
phungductung | 0:e87aa4c49e95 | 1908 | if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 1909 | { |
phungductung | 0:e87aa4c49e95 | 1910 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 1911 | } |
phungductung | 0:e87aa4c49e95 | 1912 | /* Disable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1913 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1914 | |
phungductung | 0:e87aa4c49e95 | 1915 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 1916 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 1917 | |
phungductung | 0:e87aa4c49e95 | 1918 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 1919 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 1920 | } |
phungductung | 0:e87aa4c49e95 | 1921 | |
phungductung | 0:e87aa4c49e95 | 1922 | if(Size != 0) |
phungductung | 0:e87aa4c49e95 | 1923 | { |
phungductung | 0:e87aa4c49e95 | 1924 | /* Enable Interrupts */ |
phungductung | 0:e87aa4c49e95 | 1925 | __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 1926 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 1927 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 1928 | } |
phungductung | 0:e87aa4c49e95 | 1929 | else |
phungductung | 0:e87aa4c49e95 | 1930 | { |
phungductung | 0:e87aa4c49e95 | 1931 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 1932 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1933 | /* Change the CRYP state and phase */ |
phungductung | 0:e87aa4c49e95 | 1934 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1935 | } |
phungductung | 0:e87aa4c49e95 | 1936 | |
phungductung | 0:e87aa4c49e95 | 1937 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1938 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1939 | } |
phungductung | 0:e87aa4c49e95 | 1940 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI)) |
phungductung | 0:e87aa4c49e95 | 1941 | { |
phungductung | 0:e87aa4c49e95 | 1942 | inputaddr = (uint32_t)hcryp->pCrypInBuffPtr; |
phungductung | 0:e87aa4c49e95 | 1943 | /* Write the Input block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 1944 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1945 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1946 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1947 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1948 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1949 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1950 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 1951 | hcryp->pCrypInBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 1952 | hcryp->CrypInCount -= 16; |
phungductung | 0:e87aa4c49e95 | 1953 | if(hcryp->CrypInCount == 0) |
phungductung | 0:e87aa4c49e95 | 1954 | { |
phungductung | 0:e87aa4c49e95 | 1955 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI); |
phungductung | 0:e87aa4c49e95 | 1956 | /* Call the Input data transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 1957 | HAL_CRYP_InCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 1958 | } |
phungductung | 0:e87aa4c49e95 | 1959 | } |
phungductung | 0:e87aa4c49e95 | 1960 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI)) |
phungductung | 0:e87aa4c49e95 | 1961 | { |
phungductung | 0:e87aa4c49e95 | 1962 | outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr; |
phungductung | 0:e87aa4c49e95 | 1963 | /* Read the Output block from the Output FIFO */ |
phungductung | 0:e87aa4c49e95 | 1964 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1965 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1966 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1967 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1968 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1969 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 1970 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 1971 | hcryp->pCrypOutBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 1972 | hcryp->CrypOutCount -= 16; |
phungductung | 0:e87aa4c49e95 | 1973 | if(hcryp->CrypOutCount == 0) |
phungductung | 0:e87aa4c49e95 | 1974 | { |
phungductung | 0:e87aa4c49e95 | 1975 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 1976 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 1977 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 1978 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 1979 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 1980 | /* Call Input transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 1981 | HAL_CRYP_OutCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 1982 | } |
phungductung | 0:e87aa4c49e95 | 1983 | } |
phungductung | 0:e87aa4c49e95 | 1984 | |
phungductung | 0:e87aa4c49e95 | 1985 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 1986 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 1987 | } |
phungductung | 0:e87aa4c49e95 | 1988 | |
phungductung | 0:e87aa4c49e95 | 1989 | /** |
phungductung | 0:e87aa4c49e95 | 1990 | * @brief Initializes the CRYP peripheral in AES CCM decryption mode using interrupt |
phungductung | 0:e87aa4c49e95 | 1991 | * then decrypted pCypherData. The cypher data are available in pPlainData. |
phungductung | 0:e87aa4c49e95 | 1992 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 1993 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 1994 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 1995 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 1996 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 1997 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 1998 | */ |
phungductung | 0:e87aa4c49e95 | 1999 | HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Decrypt_IT(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData) |
phungductung | 0:e87aa4c49e95 | 2000 | { |
phungductung | 0:e87aa4c49e95 | 2001 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 2002 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 2003 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 2004 | uint32_t headersize = hcryp->Init.HeaderSize; |
phungductung | 0:e87aa4c49e95 | 2005 | uint32_t headeraddr = (uint32_t)hcryp->Init.Header; |
phungductung | 0:e87aa4c49e95 | 2006 | uint32_t loopcounter = 0; |
phungductung | 0:e87aa4c49e95 | 2007 | uint32_t bufferidx = 0; |
phungductung | 0:e87aa4c49e95 | 2008 | uint8_t blockb0[16] = {0};/* Block B0 */ |
phungductung | 0:e87aa4c49e95 | 2009 | uint8_t ctr[16] = {0}; /* Counter */ |
phungductung | 0:e87aa4c49e95 | 2010 | uint32_t b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 2011 | |
phungductung | 0:e87aa4c49e95 | 2012 | if(hcryp->State == HAL_CRYP_STATE_READY) |
phungductung | 0:e87aa4c49e95 | 2013 | { |
phungductung | 0:e87aa4c49e95 | 2014 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 2015 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2016 | |
phungductung | 0:e87aa4c49e95 | 2017 | hcryp->CrypInCount = Size; |
phungductung | 0:e87aa4c49e95 | 2018 | hcryp->pCrypInBuffPtr = pCypherData; |
phungductung | 0:e87aa4c49e95 | 2019 | hcryp->pCrypOutBuffPtr = pPlainData; |
phungductung | 0:e87aa4c49e95 | 2020 | hcryp->CrypOutCount = Size; |
phungductung | 0:e87aa4c49e95 | 2021 | |
phungductung | 0:e87aa4c49e95 | 2022 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 2023 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 2024 | |
phungductung | 0:e87aa4c49e95 | 2025 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 2026 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 2027 | { |
phungductung | 0:e87aa4c49e95 | 2028 | /************************ Formatting the header block *******************/ |
phungductung | 0:e87aa4c49e95 | 2029 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2030 | { |
phungductung | 0:e87aa4c49e95 | 2031 | /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */ |
phungductung | 0:e87aa4c49e95 | 2032 | if(headersize < 65280) |
phungductung | 0:e87aa4c49e95 | 2033 | { |
phungductung | 0:e87aa4c49e95 | 2034 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2035 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2036 | headersize += 2; |
phungductung | 0:e87aa4c49e95 | 2037 | } |
phungductung | 0:e87aa4c49e95 | 2038 | else |
phungductung | 0:e87aa4c49e95 | 2039 | { |
phungductung | 0:e87aa4c49e95 | 2040 | /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */ |
phungductung | 0:e87aa4c49e95 | 2041 | hcryp->Init.pScratch[bufferidx++] = 0xFF; |
phungductung | 0:e87aa4c49e95 | 2042 | hcryp->Init.pScratch[bufferidx++] = 0xFE; |
phungductung | 0:e87aa4c49e95 | 2043 | hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000; |
phungductung | 0:e87aa4c49e95 | 2044 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000; |
phungductung | 0:e87aa4c49e95 | 2045 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00; |
phungductung | 0:e87aa4c49e95 | 2046 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff; |
phungductung | 0:e87aa4c49e95 | 2047 | headersize += 6; |
phungductung | 0:e87aa4c49e95 | 2048 | } |
phungductung | 0:e87aa4c49e95 | 2049 | /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */ |
phungductung | 0:e87aa4c49e95 | 2050 | for(loopcounter = 0; loopcounter < headersize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2051 | { |
phungductung | 0:e87aa4c49e95 | 2052 | hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2053 | } |
phungductung | 0:e87aa4c49e95 | 2054 | /* Check if the header size is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2055 | if ((headersize % 16) != 0) |
phungductung | 0:e87aa4c49e95 | 2056 | { |
phungductung | 0:e87aa4c49e95 | 2057 | /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2058 | for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2059 | { |
phungductung | 0:e87aa4c49e95 | 2060 | hcryp->Init.pScratch[loopcounter] = 0; |
phungductung | 0:e87aa4c49e95 | 2061 | } |
phungductung | 0:e87aa4c49e95 | 2062 | /* Set the header size to modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2063 | headersize = ((headersize/16) + 1) * 16; |
phungductung | 0:e87aa4c49e95 | 2064 | } |
phungductung | 0:e87aa4c49e95 | 2065 | /* Set the pointer headeraddr to hcryp->Init.pScratch */ |
phungductung | 0:e87aa4c49e95 | 2066 | headeraddr = (uint32_t)hcryp->Init.pScratch; |
phungductung | 0:e87aa4c49e95 | 2067 | } |
phungductung | 0:e87aa4c49e95 | 2068 | /*********************** Formatting the block B0 ************************/ |
phungductung | 0:e87aa4c49e95 | 2069 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2070 | { |
phungductung | 0:e87aa4c49e95 | 2071 | blockb0[0] = 0x40; |
phungductung | 0:e87aa4c49e95 | 2072 | } |
phungductung | 0:e87aa4c49e95 | 2073 | /* Flags byte */ |
phungductung | 0:e87aa4c49e95 | 2074 | /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */ |
phungductung | 0:e87aa4c49e95 | 2075 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3); |
phungductung | 0:e87aa4c49e95 | 2076 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07); |
phungductung | 0:e87aa4c49e95 | 2077 | |
phungductung | 0:e87aa4c49e95 | 2078 | for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2079 | { |
phungductung | 0:e87aa4c49e95 | 2080 | blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2081 | } |
phungductung | 0:e87aa4c49e95 | 2082 | for ( ; loopcounter < 13; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2083 | { |
phungductung | 0:e87aa4c49e95 | 2084 | blockb0[loopcounter+1] = 0; |
phungductung | 0:e87aa4c49e95 | 2085 | } |
phungductung | 0:e87aa4c49e95 | 2086 | |
phungductung | 0:e87aa4c49e95 | 2087 | blockb0[14] = (Size >> 8); |
phungductung | 0:e87aa4c49e95 | 2088 | blockb0[15] = (Size & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2089 | |
phungductung | 0:e87aa4c49e95 | 2090 | /************************* Formatting the initial counter ***************/ |
phungductung | 0:e87aa4c49e95 | 2091 | /* Byte 0: |
phungductung | 0:e87aa4c49e95 | 2092 | Bits 7 and 6 are reserved and shall be set to 0 |
phungductung | 0:e87aa4c49e95 | 2093 | Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter |
phungductung | 0:e87aa4c49e95 | 2094 | blocks are distinct from B0 |
phungductung | 0:e87aa4c49e95 | 2095 | Bits 0, 1, and 2 contain the same encoding of q as in B0 |
phungductung | 0:e87aa4c49e95 | 2096 | */ |
phungductung | 0:e87aa4c49e95 | 2097 | ctr[0] = blockb0[0] & 0x07; |
phungductung | 0:e87aa4c49e95 | 2098 | /* byte 1 to NonceSize is the IV (Nonce) */ |
phungductung | 0:e87aa4c49e95 | 2099 | for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2100 | { |
phungductung | 0:e87aa4c49e95 | 2101 | ctr[loopcounter] = blockb0[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2102 | } |
phungductung | 0:e87aa4c49e95 | 2103 | /* Set the LSB to 1 */ |
phungductung | 0:e87aa4c49e95 | 2104 | ctr[15] |= 0x01; |
phungductung | 0:e87aa4c49e95 | 2105 | |
phungductung | 0:e87aa4c49e95 | 2106 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 2107 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 2108 | |
phungductung | 0:e87aa4c49e95 | 2109 | /* Set the CRYP peripheral in AES CCM mode */ |
phungductung | 0:e87aa4c49e95 | 2110 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_DECRYPT); |
phungductung | 0:e87aa4c49e95 | 2111 | |
phungductung | 0:e87aa4c49e95 | 2112 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 2113 | CRYPEx_GCMCCM_SetInitVector(hcryp, ctr); |
phungductung | 0:e87aa4c49e95 | 2114 | |
phungductung | 0:e87aa4c49e95 | 2115 | /* Select init phase */ |
phungductung | 0:e87aa4c49e95 | 2116 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT); |
phungductung | 0:e87aa4c49e95 | 2117 | |
phungductung | 0:e87aa4c49e95 | 2118 | b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 2119 | /* Write the blockb0 block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 2120 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2121 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2122 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2123 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2124 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2125 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2126 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2127 | |
phungductung | 0:e87aa4c49e95 | 2128 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 2129 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2130 | |
phungductung | 0:e87aa4c49e95 | 2131 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2132 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2133 | |
phungductung | 0:e87aa4c49e95 | 2134 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 2135 | { |
phungductung | 0:e87aa4c49e95 | 2136 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2137 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2138 | { |
phungductung | 0:e87aa4c49e95 | 2139 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2140 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2141 | |
phungductung | 0:e87aa4c49e95 | 2142 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2143 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2144 | |
phungductung | 0:e87aa4c49e95 | 2145 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2146 | } |
phungductung | 0:e87aa4c49e95 | 2147 | } |
phungductung | 0:e87aa4c49e95 | 2148 | /***************************** Header phase *****************************/ |
phungductung | 0:e87aa4c49e95 | 2149 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2150 | { |
phungductung | 0:e87aa4c49e95 | 2151 | /* Select header phase */ |
phungductung | 0:e87aa4c49e95 | 2152 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER); |
phungductung | 0:e87aa4c49e95 | 2153 | |
phungductung | 0:e87aa4c49e95 | 2154 | /* Enable Crypto processor */ |
phungductung | 0:e87aa4c49e95 | 2155 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2156 | |
phungductung | 0:e87aa4c49e95 | 2157 | for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16) |
phungductung | 0:e87aa4c49e95 | 2158 | { |
phungductung | 0:e87aa4c49e95 | 2159 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2160 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2161 | |
phungductung | 0:e87aa4c49e95 | 2162 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM)) |
phungductung | 0:e87aa4c49e95 | 2163 | { |
phungductung | 0:e87aa4c49e95 | 2164 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2165 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2166 | { |
phungductung | 0:e87aa4c49e95 | 2167 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2168 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2169 | |
phungductung | 0:e87aa4c49e95 | 2170 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2171 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2172 | |
phungductung | 0:e87aa4c49e95 | 2173 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2174 | } |
phungductung | 0:e87aa4c49e95 | 2175 | } |
phungductung | 0:e87aa4c49e95 | 2176 | /* Write the header block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 2177 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2178 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2179 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2180 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2181 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2182 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2183 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2184 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2185 | } |
phungductung | 0:e87aa4c49e95 | 2186 | |
phungductung | 0:e87aa4c49e95 | 2187 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2188 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2189 | |
phungductung | 0:e87aa4c49e95 | 2190 | while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY) |
phungductung | 0:e87aa4c49e95 | 2191 | { |
phungductung | 0:e87aa4c49e95 | 2192 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2193 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2194 | { |
phungductung | 0:e87aa4c49e95 | 2195 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2196 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2197 | |
phungductung | 0:e87aa4c49e95 | 2198 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2199 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2200 | |
phungductung | 0:e87aa4c49e95 | 2201 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2202 | } |
phungductung | 0:e87aa4c49e95 | 2203 | } |
phungductung | 0:e87aa4c49e95 | 2204 | } |
phungductung | 0:e87aa4c49e95 | 2205 | /* Save formatted counter into the scratch buffer pScratch */ |
phungductung | 0:e87aa4c49e95 | 2206 | for(loopcounter = 0; (loopcounter < 16); loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2207 | { |
phungductung | 0:e87aa4c49e95 | 2208 | hcryp->Init.pScratch[loopcounter] = ctr[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2209 | } |
phungductung | 0:e87aa4c49e95 | 2210 | /* Reset bit 0 */ |
phungductung | 0:e87aa4c49e95 | 2211 | hcryp->Init.pScratch[15] &= 0xfe; |
phungductung | 0:e87aa4c49e95 | 2212 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 2213 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 2214 | |
phungductung | 0:e87aa4c49e95 | 2215 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 2216 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 2217 | |
phungductung | 0:e87aa4c49e95 | 2218 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 2219 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 2220 | } |
phungductung | 0:e87aa4c49e95 | 2221 | |
phungductung | 0:e87aa4c49e95 | 2222 | /* Enable Interrupts */ |
phungductung | 0:e87aa4c49e95 | 2223 | __HAL_CRYP_ENABLE_IT(hcryp, CRYP_IT_INI | CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 2224 | |
phungductung | 0:e87aa4c49e95 | 2225 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 2226 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2227 | |
phungductung | 0:e87aa4c49e95 | 2228 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 2229 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 2230 | } |
phungductung | 0:e87aa4c49e95 | 2231 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_INI)) |
phungductung | 0:e87aa4c49e95 | 2232 | { |
phungductung | 0:e87aa4c49e95 | 2233 | inputaddr = (uint32_t)hcryp->pCrypInBuffPtr; |
phungductung | 0:e87aa4c49e95 | 2234 | /* Write the Input block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 2235 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 2236 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 2237 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 2238 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 2239 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 2240 | inputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 2241 | hcryp->Instance->DR = *(uint32_t*)(inputaddr); |
phungductung | 0:e87aa4c49e95 | 2242 | hcryp->pCrypInBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 2243 | hcryp->CrypInCount -= 16; |
phungductung | 0:e87aa4c49e95 | 2244 | if(hcryp->CrypInCount == 0) |
phungductung | 0:e87aa4c49e95 | 2245 | { |
phungductung | 0:e87aa4c49e95 | 2246 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_INI); |
phungductung | 0:e87aa4c49e95 | 2247 | /* Call the Input data transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 2248 | HAL_CRYP_InCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 2249 | } |
phungductung | 0:e87aa4c49e95 | 2250 | } |
phungductung | 0:e87aa4c49e95 | 2251 | else if (__HAL_CRYP_GET_IT(hcryp, CRYP_IT_OUTI)) |
phungductung | 0:e87aa4c49e95 | 2252 | { |
phungductung | 0:e87aa4c49e95 | 2253 | outputaddr = (uint32_t)hcryp->pCrypOutBuffPtr; |
phungductung | 0:e87aa4c49e95 | 2254 | /* Read the Output block from the Output FIFO */ |
phungductung | 0:e87aa4c49e95 | 2255 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 2256 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 2257 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 2258 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 2259 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 2260 | outputaddr+=4; |
phungductung | 0:e87aa4c49e95 | 2261 | *(uint32_t*)(outputaddr) = hcryp->Instance->DOUT; |
phungductung | 0:e87aa4c49e95 | 2262 | hcryp->pCrypOutBuffPtr += 16; |
phungductung | 0:e87aa4c49e95 | 2263 | hcryp->CrypOutCount -= 16; |
phungductung | 0:e87aa4c49e95 | 2264 | if(hcryp->CrypOutCount == 0) |
phungductung | 0:e87aa4c49e95 | 2265 | { |
phungductung | 0:e87aa4c49e95 | 2266 | __HAL_CRYP_DISABLE_IT(hcryp, CRYP_IT_OUTI); |
phungductung | 0:e87aa4c49e95 | 2267 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2268 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2269 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 2270 | hcryp->State = HAL_CRYP_STATE_READY; |
phungductung | 0:e87aa4c49e95 | 2271 | /* Call Input transfer complete callback */ |
phungductung | 0:e87aa4c49e95 | 2272 | HAL_CRYP_OutCpltCallback(hcryp); |
phungductung | 0:e87aa4c49e95 | 2273 | } |
phungductung | 0:e87aa4c49e95 | 2274 | } |
phungductung | 0:e87aa4c49e95 | 2275 | |
phungductung | 0:e87aa4c49e95 | 2276 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 2277 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 2278 | } |
phungductung | 0:e87aa4c49e95 | 2279 | |
phungductung | 0:e87aa4c49e95 | 2280 | /** |
phungductung | 0:e87aa4c49e95 | 2281 | * @brief Initializes the CRYP peripheral in AES GCM encryption mode using DMA. |
phungductung | 0:e87aa4c49e95 | 2282 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 2283 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 2284 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 2285 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 2286 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 2287 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 2288 | */ |
phungductung | 0:e87aa4c49e95 | 2289 | HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Encrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData) |
phungductung | 0:e87aa4c49e95 | 2290 | { |
phungductung | 0:e87aa4c49e95 | 2291 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 2292 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 2293 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 2294 | |
phungductung | 0:e87aa4c49e95 | 2295 | if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS)) |
phungductung | 0:e87aa4c49e95 | 2296 | { |
phungductung | 0:e87aa4c49e95 | 2297 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 2298 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2299 | |
phungductung | 0:e87aa4c49e95 | 2300 | inputaddr = (uint32_t)pPlainData; |
phungductung | 0:e87aa4c49e95 | 2301 | outputaddr = (uint32_t)pCypherData; |
phungductung | 0:e87aa4c49e95 | 2302 | |
phungductung | 0:e87aa4c49e95 | 2303 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 2304 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 2305 | |
phungductung | 0:e87aa4c49e95 | 2306 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 2307 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 2308 | { |
phungductung | 0:e87aa4c49e95 | 2309 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 2310 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 2311 | |
phungductung | 0:e87aa4c49e95 | 2312 | /* Set the CRYP peripheral in AES GCM mode */ |
phungductung | 0:e87aa4c49e95 | 2313 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT); |
phungductung | 0:e87aa4c49e95 | 2314 | |
phungductung | 0:e87aa4c49e95 | 2315 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 2316 | CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect); |
phungductung | 0:e87aa4c49e95 | 2317 | |
phungductung | 0:e87aa4c49e95 | 2318 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 2319 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 2320 | |
phungductung | 0:e87aa4c49e95 | 2321 | /* Enable CRYP to start the init phase */ |
phungductung | 0:e87aa4c49e95 | 2322 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2323 | |
phungductung | 0:e87aa4c49e95 | 2324 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2325 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2326 | |
phungductung | 0:e87aa4c49e95 | 2327 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 2328 | { |
phungductung | 0:e87aa4c49e95 | 2329 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2330 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2331 | { |
phungductung | 0:e87aa4c49e95 | 2332 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2333 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2334 | |
phungductung | 0:e87aa4c49e95 | 2335 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2336 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2337 | |
phungductung | 0:e87aa4c49e95 | 2338 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2339 | } |
phungductung | 0:e87aa4c49e95 | 2340 | } |
phungductung | 0:e87aa4c49e95 | 2341 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 2342 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 2343 | |
phungductung | 0:e87aa4c49e95 | 2344 | /* Set the header phase */ |
phungductung | 0:e87aa4c49e95 | 2345 | if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 2346 | { |
phungductung | 0:e87aa4c49e95 | 2347 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2348 | } |
phungductung | 0:e87aa4c49e95 | 2349 | /* Disable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 2350 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2351 | |
phungductung | 0:e87aa4c49e95 | 2352 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 2353 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 2354 | |
phungductung | 0:e87aa4c49e95 | 2355 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 2356 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 2357 | |
phungductung | 0:e87aa4c49e95 | 2358 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 2359 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 2360 | } |
phungductung | 0:e87aa4c49e95 | 2361 | |
phungductung | 0:e87aa4c49e95 | 2362 | /* Set the input and output addresses and start DMA transfer */ |
phungductung | 0:e87aa4c49e95 | 2363 | CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr); |
phungductung | 0:e87aa4c49e95 | 2364 | |
phungductung | 0:e87aa4c49e95 | 2365 | /* Unlock process */ |
phungductung | 0:e87aa4c49e95 | 2366 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2367 | |
phungductung | 0:e87aa4c49e95 | 2368 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 2369 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 2370 | } |
phungductung | 0:e87aa4c49e95 | 2371 | else |
phungductung | 0:e87aa4c49e95 | 2372 | { |
phungductung | 0:e87aa4c49e95 | 2373 | return HAL_ERROR; |
phungductung | 0:e87aa4c49e95 | 2374 | } |
phungductung | 0:e87aa4c49e95 | 2375 | } |
phungductung | 0:e87aa4c49e95 | 2376 | |
phungductung | 0:e87aa4c49e95 | 2377 | /** |
phungductung | 0:e87aa4c49e95 | 2378 | * @brief Initializes the CRYP peripheral in AES CCM encryption mode using interrupt. |
phungductung | 0:e87aa4c49e95 | 2379 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 2380 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 2381 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 2382 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 2383 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 2384 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 2385 | */ |
phungductung | 0:e87aa4c49e95 | 2386 | HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Encrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pPlainData, uint16_t Size, uint8_t *pCypherData) |
phungductung | 0:e87aa4c49e95 | 2387 | { |
phungductung | 0:e87aa4c49e95 | 2388 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 2389 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 2390 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 2391 | uint32_t headersize; |
phungductung | 0:e87aa4c49e95 | 2392 | uint32_t headeraddr; |
phungductung | 0:e87aa4c49e95 | 2393 | uint32_t loopcounter = 0; |
phungductung | 0:e87aa4c49e95 | 2394 | uint32_t bufferidx = 0; |
phungductung | 0:e87aa4c49e95 | 2395 | uint8_t blockb0[16] = {0};/* Block B0 */ |
phungductung | 0:e87aa4c49e95 | 2396 | uint8_t ctr[16] = {0}; /* Counter */ |
phungductung | 0:e87aa4c49e95 | 2397 | uint32_t b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 2398 | |
phungductung | 0:e87aa4c49e95 | 2399 | if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS)) |
phungductung | 0:e87aa4c49e95 | 2400 | { |
phungductung | 0:e87aa4c49e95 | 2401 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 2402 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2403 | |
phungductung | 0:e87aa4c49e95 | 2404 | inputaddr = (uint32_t)pPlainData; |
phungductung | 0:e87aa4c49e95 | 2405 | outputaddr = (uint32_t)pCypherData; |
phungductung | 0:e87aa4c49e95 | 2406 | |
phungductung | 0:e87aa4c49e95 | 2407 | headersize = hcryp->Init.HeaderSize; |
phungductung | 0:e87aa4c49e95 | 2408 | headeraddr = (uint32_t)hcryp->Init.Header; |
phungductung | 0:e87aa4c49e95 | 2409 | |
phungductung | 0:e87aa4c49e95 | 2410 | hcryp->CrypInCount = Size; |
phungductung | 0:e87aa4c49e95 | 2411 | hcryp->pCrypInBuffPtr = pPlainData; |
phungductung | 0:e87aa4c49e95 | 2412 | hcryp->pCrypOutBuffPtr = pCypherData; |
phungductung | 0:e87aa4c49e95 | 2413 | hcryp->CrypOutCount = Size; |
phungductung | 0:e87aa4c49e95 | 2414 | |
phungductung | 0:e87aa4c49e95 | 2415 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 2416 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 2417 | |
phungductung | 0:e87aa4c49e95 | 2418 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 2419 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 2420 | { |
phungductung | 0:e87aa4c49e95 | 2421 | /************************ Formatting the header block *******************/ |
phungductung | 0:e87aa4c49e95 | 2422 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2423 | { |
phungductung | 0:e87aa4c49e95 | 2424 | /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */ |
phungductung | 0:e87aa4c49e95 | 2425 | if(headersize < 65280) |
phungductung | 0:e87aa4c49e95 | 2426 | { |
phungductung | 0:e87aa4c49e95 | 2427 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2428 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2429 | headersize += 2; |
phungductung | 0:e87aa4c49e95 | 2430 | } |
phungductung | 0:e87aa4c49e95 | 2431 | else |
phungductung | 0:e87aa4c49e95 | 2432 | { |
phungductung | 0:e87aa4c49e95 | 2433 | /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */ |
phungductung | 0:e87aa4c49e95 | 2434 | hcryp->Init.pScratch[bufferidx++] = 0xFF; |
phungductung | 0:e87aa4c49e95 | 2435 | hcryp->Init.pScratch[bufferidx++] = 0xFE; |
phungductung | 0:e87aa4c49e95 | 2436 | hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000; |
phungductung | 0:e87aa4c49e95 | 2437 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000; |
phungductung | 0:e87aa4c49e95 | 2438 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00; |
phungductung | 0:e87aa4c49e95 | 2439 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff; |
phungductung | 0:e87aa4c49e95 | 2440 | headersize += 6; |
phungductung | 0:e87aa4c49e95 | 2441 | } |
phungductung | 0:e87aa4c49e95 | 2442 | /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */ |
phungductung | 0:e87aa4c49e95 | 2443 | for(loopcounter = 0; loopcounter < headersize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2444 | { |
phungductung | 0:e87aa4c49e95 | 2445 | hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2446 | } |
phungductung | 0:e87aa4c49e95 | 2447 | /* Check if the header size is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2448 | if ((headersize % 16) != 0) |
phungductung | 0:e87aa4c49e95 | 2449 | { |
phungductung | 0:e87aa4c49e95 | 2450 | /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2451 | for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2452 | { |
phungductung | 0:e87aa4c49e95 | 2453 | hcryp->Init.pScratch[loopcounter] = 0; |
phungductung | 0:e87aa4c49e95 | 2454 | } |
phungductung | 0:e87aa4c49e95 | 2455 | /* Set the header size to modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2456 | headersize = ((headersize/16) + 1) * 16; |
phungductung | 0:e87aa4c49e95 | 2457 | } |
phungductung | 0:e87aa4c49e95 | 2458 | /* Set the pointer headeraddr to hcryp->Init.pScratch */ |
phungductung | 0:e87aa4c49e95 | 2459 | headeraddr = (uint32_t)hcryp->Init.pScratch; |
phungductung | 0:e87aa4c49e95 | 2460 | } |
phungductung | 0:e87aa4c49e95 | 2461 | /*********************** Formatting the block B0 ************************/ |
phungductung | 0:e87aa4c49e95 | 2462 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2463 | { |
phungductung | 0:e87aa4c49e95 | 2464 | blockb0[0] = 0x40; |
phungductung | 0:e87aa4c49e95 | 2465 | } |
phungductung | 0:e87aa4c49e95 | 2466 | /* Flags byte */ |
phungductung | 0:e87aa4c49e95 | 2467 | /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */ |
phungductung | 0:e87aa4c49e95 | 2468 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3); |
phungductung | 0:e87aa4c49e95 | 2469 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07); |
phungductung | 0:e87aa4c49e95 | 2470 | |
phungductung | 0:e87aa4c49e95 | 2471 | for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2472 | { |
phungductung | 0:e87aa4c49e95 | 2473 | blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2474 | } |
phungductung | 0:e87aa4c49e95 | 2475 | for ( ; loopcounter < 13; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2476 | { |
phungductung | 0:e87aa4c49e95 | 2477 | blockb0[loopcounter+1] = 0; |
phungductung | 0:e87aa4c49e95 | 2478 | } |
phungductung | 0:e87aa4c49e95 | 2479 | |
phungductung | 0:e87aa4c49e95 | 2480 | blockb0[14] = (Size >> 8); |
phungductung | 0:e87aa4c49e95 | 2481 | blockb0[15] = (Size & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2482 | |
phungductung | 0:e87aa4c49e95 | 2483 | /************************* Formatting the initial counter ***************/ |
phungductung | 0:e87aa4c49e95 | 2484 | /* Byte 0: |
phungductung | 0:e87aa4c49e95 | 2485 | Bits 7 and 6 are reserved and shall be set to 0 |
phungductung | 0:e87aa4c49e95 | 2486 | Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter |
phungductung | 0:e87aa4c49e95 | 2487 | blocks are distinct from B0 |
phungductung | 0:e87aa4c49e95 | 2488 | Bits 0, 1, and 2 contain the same encoding of q as in B0 |
phungductung | 0:e87aa4c49e95 | 2489 | */ |
phungductung | 0:e87aa4c49e95 | 2490 | ctr[0] = blockb0[0] & 0x07; |
phungductung | 0:e87aa4c49e95 | 2491 | /* byte 1 to NonceSize is the IV (Nonce) */ |
phungductung | 0:e87aa4c49e95 | 2492 | for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2493 | { |
phungductung | 0:e87aa4c49e95 | 2494 | ctr[loopcounter] = blockb0[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2495 | } |
phungductung | 0:e87aa4c49e95 | 2496 | /* Set the LSB to 1 */ |
phungductung | 0:e87aa4c49e95 | 2497 | ctr[15] |= 0x01; |
phungductung | 0:e87aa4c49e95 | 2498 | |
phungductung | 0:e87aa4c49e95 | 2499 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 2500 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 2501 | |
phungductung | 0:e87aa4c49e95 | 2502 | /* Set the CRYP peripheral in AES CCM mode */ |
phungductung | 0:e87aa4c49e95 | 2503 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT); |
phungductung | 0:e87aa4c49e95 | 2504 | |
phungductung | 0:e87aa4c49e95 | 2505 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 2506 | CRYPEx_GCMCCM_SetInitVector(hcryp, ctr); |
phungductung | 0:e87aa4c49e95 | 2507 | |
phungductung | 0:e87aa4c49e95 | 2508 | /* Select init phase */ |
phungductung | 0:e87aa4c49e95 | 2509 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT); |
phungductung | 0:e87aa4c49e95 | 2510 | |
phungductung | 0:e87aa4c49e95 | 2511 | b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 2512 | /* Write the blockb0 block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 2513 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2514 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2515 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2516 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2517 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2518 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2519 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2520 | |
phungductung | 0:e87aa4c49e95 | 2521 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 2522 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2523 | |
phungductung | 0:e87aa4c49e95 | 2524 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2525 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2526 | |
phungductung | 0:e87aa4c49e95 | 2527 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 2528 | { |
phungductung | 0:e87aa4c49e95 | 2529 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2530 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2531 | { |
phungductung | 0:e87aa4c49e95 | 2532 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2533 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2534 | |
phungductung | 0:e87aa4c49e95 | 2535 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2536 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2537 | |
phungductung | 0:e87aa4c49e95 | 2538 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2539 | } |
phungductung | 0:e87aa4c49e95 | 2540 | } |
phungductung | 0:e87aa4c49e95 | 2541 | /***************************** Header phase *****************************/ |
phungductung | 0:e87aa4c49e95 | 2542 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2543 | { |
phungductung | 0:e87aa4c49e95 | 2544 | /* Select header phase */ |
phungductung | 0:e87aa4c49e95 | 2545 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER); |
phungductung | 0:e87aa4c49e95 | 2546 | |
phungductung | 0:e87aa4c49e95 | 2547 | /* Enable Crypto processor */ |
phungductung | 0:e87aa4c49e95 | 2548 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2549 | |
phungductung | 0:e87aa4c49e95 | 2550 | for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16) |
phungductung | 0:e87aa4c49e95 | 2551 | { |
phungductung | 0:e87aa4c49e95 | 2552 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2553 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2554 | |
phungductung | 0:e87aa4c49e95 | 2555 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM)) |
phungductung | 0:e87aa4c49e95 | 2556 | { |
phungductung | 0:e87aa4c49e95 | 2557 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2558 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2559 | { |
phungductung | 0:e87aa4c49e95 | 2560 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2561 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2562 | |
phungductung | 0:e87aa4c49e95 | 2563 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2564 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2565 | |
phungductung | 0:e87aa4c49e95 | 2566 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2567 | } |
phungductung | 0:e87aa4c49e95 | 2568 | } |
phungductung | 0:e87aa4c49e95 | 2569 | /* Write the header block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 2570 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2571 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2572 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2573 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2574 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2575 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2576 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2577 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2578 | } |
phungductung | 0:e87aa4c49e95 | 2579 | |
phungductung | 0:e87aa4c49e95 | 2580 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2581 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2582 | |
phungductung | 0:e87aa4c49e95 | 2583 | while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY) |
phungductung | 0:e87aa4c49e95 | 2584 | { |
phungductung | 0:e87aa4c49e95 | 2585 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2586 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2587 | { |
phungductung | 0:e87aa4c49e95 | 2588 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2589 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2590 | |
phungductung | 0:e87aa4c49e95 | 2591 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2592 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2593 | |
phungductung | 0:e87aa4c49e95 | 2594 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2595 | } |
phungductung | 0:e87aa4c49e95 | 2596 | } |
phungductung | 0:e87aa4c49e95 | 2597 | } |
phungductung | 0:e87aa4c49e95 | 2598 | /* Save formatted counter into the scratch buffer pScratch */ |
phungductung | 0:e87aa4c49e95 | 2599 | for(loopcounter = 0; (loopcounter < 16); loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2600 | { |
phungductung | 0:e87aa4c49e95 | 2601 | hcryp->Init.pScratch[loopcounter] = ctr[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2602 | } |
phungductung | 0:e87aa4c49e95 | 2603 | /* Reset bit 0 */ |
phungductung | 0:e87aa4c49e95 | 2604 | hcryp->Init.pScratch[15] &= 0xfe; |
phungductung | 0:e87aa4c49e95 | 2605 | |
phungductung | 0:e87aa4c49e95 | 2606 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 2607 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 2608 | |
phungductung | 0:e87aa4c49e95 | 2609 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 2610 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 2611 | |
phungductung | 0:e87aa4c49e95 | 2612 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 2613 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 2614 | } |
phungductung | 0:e87aa4c49e95 | 2615 | |
phungductung | 0:e87aa4c49e95 | 2616 | /* Set the input and output addresses and start DMA transfer */ |
phungductung | 0:e87aa4c49e95 | 2617 | CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr); |
phungductung | 0:e87aa4c49e95 | 2618 | |
phungductung | 0:e87aa4c49e95 | 2619 | /* Unlock process */ |
phungductung | 0:e87aa4c49e95 | 2620 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2621 | |
phungductung | 0:e87aa4c49e95 | 2622 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 2623 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 2624 | } |
phungductung | 0:e87aa4c49e95 | 2625 | else |
phungductung | 0:e87aa4c49e95 | 2626 | { |
phungductung | 0:e87aa4c49e95 | 2627 | return HAL_ERROR; |
phungductung | 0:e87aa4c49e95 | 2628 | } |
phungductung | 0:e87aa4c49e95 | 2629 | } |
phungductung | 0:e87aa4c49e95 | 2630 | |
phungductung | 0:e87aa4c49e95 | 2631 | /** |
phungductung | 0:e87aa4c49e95 | 2632 | * @brief Initializes the CRYP peripheral in AES GCM decryption mode using DMA. |
phungductung | 0:e87aa4c49e95 | 2633 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 2634 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 2635 | * @param pCypherData: Pointer to the cyphertext buffer. |
phungductung | 0:e87aa4c49e95 | 2636 | * @param Size: Length of the cyphertext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 2637 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 2638 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 2639 | */ |
phungductung | 0:e87aa4c49e95 | 2640 | HAL_StatusTypeDef HAL_CRYPEx_AESGCM_Decrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData) |
phungductung | 0:e87aa4c49e95 | 2641 | { |
phungductung | 0:e87aa4c49e95 | 2642 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 2643 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 2644 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 2645 | |
phungductung | 0:e87aa4c49e95 | 2646 | if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS)) |
phungductung | 0:e87aa4c49e95 | 2647 | { |
phungductung | 0:e87aa4c49e95 | 2648 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 2649 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2650 | |
phungductung | 0:e87aa4c49e95 | 2651 | inputaddr = (uint32_t)pCypherData; |
phungductung | 0:e87aa4c49e95 | 2652 | outputaddr = (uint32_t)pPlainData; |
phungductung | 0:e87aa4c49e95 | 2653 | |
phungductung | 0:e87aa4c49e95 | 2654 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 2655 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 2656 | |
phungductung | 0:e87aa4c49e95 | 2657 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 2658 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 2659 | { |
phungductung | 0:e87aa4c49e95 | 2660 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 2661 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 2662 | |
phungductung | 0:e87aa4c49e95 | 2663 | /* Set the CRYP peripheral in AES GCM decryption mode */ |
phungductung | 0:e87aa4c49e95 | 2664 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_GCM_DECRYPT); |
phungductung | 0:e87aa4c49e95 | 2665 | |
phungductung | 0:e87aa4c49e95 | 2666 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 2667 | CRYPEx_GCMCCM_SetInitVector(hcryp, hcryp->Init.pInitVect); |
phungductung | 0:e87aa4c49e95 | 2668 | |
phungductung | 0:e87aa4c49e95 | 2669 | /* Enable CRYP to start the init phase */ |
phungductung | 0:e87aa4c49e95 | 2670 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2671 | |
phungductung | 0:e87aa4c49e95 | 2672 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2673 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2674 | |
phungductung | 0:e87aa4c49e95 | 2675 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 2676 | { |
phungductung | 0:e87aa4c49e95 | 2677 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2678 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2679 | { |
phungductung | 0:e87aa4c49e95 | 2680 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2681 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2682 | |
phungductung | 0:e87aa4c49e95 | 2683 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2684 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2685 | |
phungductung | 0:e87aa4c49e95 | 2686 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2687 | } |
phungductung | 0:e87aa4c49e95 | 2688 | } |
phungductung | 0:e87aa4c49e95 | 2689 | |
phungductung | 0:e87aa4c49e95 | 2690 | /* Set the header phase */ |
phungductung | 0:e87aa4c49e95 | 2691 | if(CRYPEx_GCMCCM_SetHeaderPhase(hcryp, hcryp->Init.Header, hcryp->Init.HeaderSize, 1) != HAL_OK) |
phungductung | 0:e87aa4c49e95 | 2692 | { |
phungductung | 0:e87aa4c49e95 | 2693 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2694 | } |
phungductung | 0:e87aa4c49e95 | 2695 | /* Disable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 2696 | __HAL_CRYP_DISABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2697 | |
phungductung | 0:e87aa4c49e95 | 2698 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 2699 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 2700 | |
phungductung | 0:e87aa4c49e95 | 2701 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 2702 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 2703 | } |
phungductung | 0:e87aa4c49e95 | 2704 | |
phungductung | 0:e87aa4c49e95 | 2705 | /* Set the input and output addresses and start DMA transfer */ |
phungductung | 0:e87aa4c49e95 | 2706 | CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr); |
phungductung | 0:e87aa4c49e95 | 2707 | |
phungductung | 0:e87aa4c49e95 | 2708 | /* Unlock process */ |
phungductung | 0:e87aa4c49e95 | 2709 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2710 | |
phungductung | 0:e87aa4c49e95 | 2711 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 2712 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 2713 | } |
phungductung | 0:e87aa4c49e95 | 2714 | else |
phungductung | 0:e87aa4c49e95 | 2715 | { |
phungductung | 0:e87aa4c49e95 | 2716 | return HAL_ERROR; |
phungductung | 0:e87aa4c49e95 | 2717 | } |
phungductung | 0:e87aa4c49e95 | 2718 | } |
phungductung | 0:e87aa4c49e95 | 2719 | |
phungductung | 0:e87aa4c49e95 | 2720 | /** |
phungductung | 0:e87aa4c49e95 | 2721 | * @brief Initializes the CRYP peripheral in AES CCM decryption mode using DMA |
phungductung | 0:e87aa4c49e95 | 2722 | * then decrypted pCypherData. The cypher data are available in pPlainData. |
phungductung | 0:e87aa4c49e95 | 2723 | * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 2724 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 2725 | * @param pCypherData: Pointer to the cyphertext buffer |
phungductung | 0:e87aa4c49e95 | 2726 | * @param Size: Length of the plaintext buffer, must be a multiple of 16 |
phungductung | 0:e87aa4c49e95 | 2727 | * @param pPlainData: Pointer to the plaintext buffer |
phungductung | 0:e87aa4c49e95 | 2728 | * @retval HAL status |
phungductung | 0:e87aa4c49e95 | 2729 | */ |
phungductung | 0:e87aa4c49e95 | 2730 | HAL_StatusTypeDef HAL_CRYPEx_AESCCM_Decrypt_DMA(CRYP_HandleTypeDef *hcryp, uint8_t *pCypherData, uint16_t Size, uint8_t *pPlainData) |
phungductung | 0:e87aa4c49e95 | 2731 | { |
phungductung | 0:e87aa4c49e95 | 2732 | uint32_t tickstart = 0; |
phungductung | 0:e87aa4c49e95 | 2733 | uint32_t inputaddr; |
phungductung | 0:e87aa4c49e95 | 2734 | uint32_t outputaddr; |
phungductung | 0:e87aa4c49e95 | 2735 | uint32_t headersize; |
phungductung | 0:e87aa4c49e95 | 2736 | uint32_t headeraddr; |
phungductung | 0:e87aa4c49e95 | 2737 | uint32_t loopcounter = 0; |
phungductung | 0:e87aa4c49e95 | 2738 | uint32_t bufferidx = 0; |
phungductung | 0:e87aa4c49e95 | 2739 | uint8_t blockb0[16] = {0};/* Block B0 */ |
phungductung | 0:e87aa4c49e95 | 2740 | uint8_t ctr[16] = {0}; /* Counter */ |
phungductung | 0:e87aa4c49e95 | 2741 | uint32_t b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 2742 | |
phungductung | 0:e87aa4c49e95 | 2743 | if((hcryp->State == HAL_CRYP_STATE_READY) || (hcryp->Phase == HAL_CRYP_PHASE_PROCESS)) |
phungductung | 0:e87aa4c49e95 | 2744 | { |
phungductung | 0:e87aa4c49e95 | 2745 | /* Process Locked */ |
phungductung | 0:e87aa4c49e95 | 2746 | __HAL_LOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2747 | |
phungductung | 0:e87aa4c49e95 | 2748 | inputaddr = (uint32_t)pCypherData; |
phungductung | 0:e87aa4c49e95 | 2749 | outputaddr = (uint32_t)pPlainData; |
phungductung | 0:e87aa4c49e95 | 2750 | |
phungductung | 0:e87aa4c49e95 | 2751 | headersize = hcryp->Init.HeaderSize; |
phungductung | 0:e87aa4c49e95 | 2752 | headeraddr = (uint32_t)hcryp->Init.Header; |
phungductung | 0:e87aa4c49e95 | 2753 | |
phungductung | 0:e87aa4c49e95 | 2754 | hcryp->CrypInCount = Size; |
phungductung | 0:e87aa4c49e95 | 2755 | hcryp->pCrypInBuffPtr = pCypherData; |
phungductung | 0:e87aa4c49e95 | 2756 | hcryp->pCrypOutBuffPtr = pPlainData; |
phungductung | 0:e87aa4c49e95 | 2757 | hcryp->CrypOutCount = Size; |
phungductung | 0:e87aa4c49e95 | 2758 | |
phungductung | 0:e87aa4c49e95 | 2759 | /* Change the CRYP peripheral state */ |
phungductung | 0:e87aa4c49e95 | 2760 | hcryp->State = HAL_CRYP_STATE_BUSY; |
phungductung | 0:e87aa4c49e95 | 2761 | |
phungductung | 0:e87aa4c49e95 | 2762 | /* Check if initialization phase has already been performed */ |
phungductung | 0:e87aa4c49e95 | 2763 | if(hcryp->Phase == HAL_CRYP_PHASE_READY) |
phungductung | 0:e87aa4c49e95 | 2764 | { |
phungductung | 0:e87aa4c49e95 | 2765 | /************************ Formatting the header block *******************/ |
phungductung | 0:e87aa4c49e95 | 2766 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2767 | { |
phungductung | 0:e87aa4c49e95 | 2768 | /* Check that the associated data (or header) length is lower than 2^16 - 2^8 = 65536 - 256 = 65280 */ |
phungductung | 0:e87aa4c49e95 | 2769 | if(headersize < 65280) |
phungductung | 0:e87aa4c49e95 | 2770 | { |
phungductung | 0:e87aa4c49e95 | 2771 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize >> 8) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2772 | hcryp->Init.pScratch[bufferidx++] = (uint8_t) ((headersize) & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2773 | headersize += 2; |
phungductung | 0:e87aa4c49e95 | 2774 | } |
phungductung | 0:e87aa4c49e95 | 2775 | else |
phungductung | 0:e87aa4c49e95 | 2776 | { |
phungductung | 0:e87aa4c49e95 | 2777 | /* Header is encoded as 0xff || 0xfe || [headersize]32, i.e., six octets */ |
phungductung | 0:e87aa4c49e95 | 2778 | hcryp->Init.pScratch[bufferidx++] = 0xFF; |
phungductung | 0:e87aa4c49e95 | 2779 | hcryp->Init.pScratch[bufferidx++] = 0xFE; |
phungductung | 0:e87aa4c49e95 | 2780 | hcryp->Init.pScratch[bufferidx++] = headersize & 0xff000000; |
phungductung | 0:e87aa4c49e95 | 2781 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x00ff0000; |
phungductung | 0:e87aa4c49e95 | 2782 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x0000ff00; |
phungductung | 0:e87aa4c49e95 | 2783 | hcryp->Init.pScratch[bufferidx++] = headersize & 0x000000ff; |
phungductung | 0:e87aa4c49e95 | 2784 | headersize += 6; |
phungductung | 0:e87aa4c49e95 | 2785 | } |
phungductung | 0:e87aa4c49e95 | 2786 | /* Copy the header buffer in internal buffer "hcryp->Init.pScratch" */ |
phungductung | 0:e87aa4c49e95 | 2787 | for(loopcounter = 0; loopcounter < headersize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2788 | { |
phungductung | 0:e87aa4c49e95 | 2789 | hcryp->Init.pScratch[bufferidx++] = hcryp->Init.Header[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2790 | } |
phungductung | 0:e87aa4c49e95 | 2791 | /* Check if the header size is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2792 | if ((headersize % 16) != 0) |
phungductung | 0:e87aa4c49e95 | 2793 | { |
phungductung | 0:e87aa4c49e95 | 2794 | /* Padd the header buffer with 0s till the hcryp->Init.pScratch length is modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2795 | for(loopcounter = headersize; loopcounter <= ((headersize/16) + 1) * 16; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2796 | { |
phungductung | 0:e87aa4c49e95 | 2797 | hcryp->Init.pScratch[loopcounter] = 0; |
phungductung | 0:e87aa4c49e95 | 2798 | } |
phungductung | 0:e87aa4c49e95 | 2799 | /* Set the header size to modulo 16 */ |
phungductung | 0:e87aa4c49e95 | 2800 | headersize = ((headersize/16) + 1) * 16; |
phungductung | 0:e87aa4c49e95 | 2801 | } |
phungductung | 0:e87aa4c49e95 | 2802 | /* Set the pointer headeraddr to hcryp->Init.pScratch */ |
phungductung | 0:e87aa4c49e95 | 2803 | headeraddr = (uint32_t)hcryp->Init.pScratch; |
phungductung | 0:e87aa4c49e95 | 2804 | } |
phungductung | 0:e87aa4c49e95 | 2805 | /*********************** Formatting the block B0 ************************/ |
phungductung | 0:e87aa4c49e95 | 2806 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2807 | { |
phungductung | 0:e87aa4c49e95 | 2808 | blockb0[0] = 0x40; |
phungductung | 0:e87aa4c49e95 | 2809 | } |
phungductung | 0:e87aa4c49e95 | 2810 | /* Flags byte */ |
phungductung | 0:e87aa4c49e95 | 2811 | /* blockb0[0] |= 0u | (((( (uint8_t) hcryp->Init.TagSize - 2) / 2) & 0x07 ) << 3 ) | ( ( (uint8_t) (15 - hcryp->Init.IVSize) - 1) & 0x07) */ |
phungductung | 0:e87aa4c49e95 | 2812 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)(((uint8_t)(hcryp->Init.TagSize - (uint8_t)(2))) >> 1) & (uint8_t)0x07 ) << 3); |
phungductung | 0:e87aa4c49e95 | 2813 | blockb0[0] |= (uint8_t)((uint8_t)((uint8_t)((uint8_t)(15) - hcryp->Init.IVSize) - (uint8_t)1) & (uint8_t)0x07); |
phungductung | 0:e87aa4c49e95 | 2814 | |
phungductung | 0:e87aa4c49e95 | 2815 | for (loopcounter = 0; loopcounter < hcryp->Init.IVSize; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2816 | { |
phungductung | 0:e87aa4c49e95 | 2817 | blockb0[loopcounter+1] = hcryp->Init.pInitVect[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2818 | } |
phungductung | 0:e87aa4c49e95 | 2819 | for ( ; loopcounter < 13; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2820 | { |
phungductung | 0:e87aa4c49e95 | 2821 | blockb0[loopcounter+1] = 0; |
phungductung | 0:e87aa4c49e95 | 2822 | } |
phungductung | 0:e87aa4c49e95 | 2823 | |
phungductung | 0:e87aa4c49e95 | 2824 | blockb0[14] = (Size >> 8); |
phungductung | 0:e87aa4c49e95 | 2825 | blockb0[15] = (Size & 0xFF); |
phungductung | 0:e87aa4c49e95 | 2826 | |
phungductung | 0:e87aa4c49e95 | 2827 | /************************* Formatting the initial counter ***************/ |
phungductung | 0:e87aa4c49e95 | 2828 | /* Byte 0: |
phungductung | 0:e87aa4c49e95 | 2829 | Bits 7 and 6 are reserved and shall be set to 0 |
phungductung | 0:e87aa4c49e95 | 2830 | Bits 3, 4, and 5 shall also be set to 0, to ensure that all the counter |
phungductung | 0:e87aa4c49e95 | 2831 | blocks are distinct from B0 |
phungductung | 0:e87aa4c49e95 | 2832 | Bits 0, 1, and 2 contain the same encoding of q as in B0 |
phungductung | 0:e87aa4c49e95 | 2833 | */ |
phungductung | 0:e87aa4c49e95 | 2834 | ctr[0] = blockb0[0] & 0x07; |
phungductung | 0:e87aa4c49e95 | 2835 | /* byte 1 to NonceSize is the IV (Nonce) */ |
phungductung | 0:e87aa4c49e95 | 2836 | for(loopcounter = 1; loopcounter < hcryp->Init.IVSize + 1; loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2837 | { |
phungductung | 0:e87aa4c49e95 | 2838 | ctr[loopcounter] = blockb0[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2839 | } |
phungductung | 0:e87aa4c49e95 | 2840 | /* Set the LSB to 1 */ |
phungductung | 0:e87aa4c49e95 | 2841 | ctr[15] |= 0x01; |
phungductung | 0:e87aa4c49e95 | 2842 | |
phungductung | 0:e87aa4c49e95 | 2843 | /* Set the key */ |
phungductung | 0:e87aa4c49e95 | 2844 | CRYPEx_GCMCCM_SetKey(hcryp, hcryp->Init.pKey, hcryp->Init.KeySize); |
phungductung | 0:e87aa4c49e95 | 2845 | |
phungductung | 0:e87aa4c49e95 | 2846 | /* Set the CRYP peripheral in AES CCM mode */ |
phungductung | 0:e87aa4c49e95 | 2847 | __HAL_CRYP_SET_MODE(hcryp, CRYP_CR_ALGOMODE_AES_CCM_DECRYPT); |
phungductung | 0:e87aa4c49e95 | 2848 | |
phungductung | 0:e87aa4c49e95 | 2849 | /* Set the Initialization Vector */ |
phungductung | 0:e87aa4c49e95 | 2850 | CRYPEx_GCMCCM_SetInitVector(hcryp, ctr); |
phungductung | 0:e87aa4c49e95 | 2851 | |
phungductung | 0:e87aa4c49e95 | 2852 | /* Select init phase */ |
phungductung | 0:e87aa4c49e95 | 2853 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_INIT); |
phungductung | 0:e87aa4c49e95 | 2854 | |
phungductung | 0:e87aa4c49e95 | 2855 | b0addr = (uint32_t)blockb0; |
phungductung | 0:e87aa4c49e95 | 2856 | /* Write the blockb0 block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 2857 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2858 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2859 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2860 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2861 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2862 | b0addr+=4; |
phungductung | 0:e87aa4c49e95 | 2863 | hcryp->Instance->DR = *(uint32_t*)(b0addr); |
phungductung | 0:e87aa4c49e95 | 2864 | |
phungductung | 0:e87aa4c49e95 | 2865 | /* Enable the CRYP peripheral */ |
phungductung | 0:e87aa4c49e95 | 2866 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2867 | |
phungductung | 0:e87aa4c49e95 | 2868 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2869 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2870 | |
phungductung | 0:e87aa4c49e95 | 2871 | while((CRYP->CR & CRYP_CR_CRYPEN) == CRYP_CR_CRYPEN) |
phungductung | 0:e87aa4c49e95 | 2872 | { |
phungductung | 0:e87aa4c49e95 | 2873 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2874 | |
phungductung | 0:e87aa4c49e95 | 2875 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2876 | { |
phungductung | 0:e87aa4c49e95 | 2877 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2878 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2879 | |
phungductung | 0:e87aa4c49e95 | 2880 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2881 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2882 | |
phungductung | 0:e87aa4c49e95 | 2883 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2884 | |
phungductung | 0:e87aa4c49e95 | 2885 | } |
phungductung | 0:e87aa4c49e95 | 2886 | } |
phungductung | 0:e87aa4c49e95 | 2887 | /***************************** Header phase *****************************/ |
phungductung | 0:e87aa4c49e95 | 2888 | if(headersize != 0) |
phungductung | 0:e87aa4c49e95 | 2889 | { |
phungductung | 0:e87aa4c49e95 | 2890 | /* Select header phase */ |
phungductung | 0:e87aa4c49e95 | 2891 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_HEADER); |
phungductung | 0:e87aa4c49e95 | 2892 | |
phungductung | 0:e87aa4c49e95 | 2893 | /* Enable Crypto processor */ |
phungductung | 0:e87aa4c49e95 | 2894 | __HAL_CRYP_ENABLE(hcryp); |
phungductung | 0:e87aa4c49e95 | 2895 | |
phungductung | 0:e87aa4c49e95 | 2896 | for(loopcounter = 0; (loopcounter < headersize); loopcounter+=16) |
phungductung | 0:e87aa4c49e95 | 2897 | { |
phungductung | 0:e87aa4c49e95 | 2898 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2899 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2900 | |
phungductung | 0:e87aa4c49e95 | 2901 | while(HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_IFEM)) |
phungductung | 0:e87aa4c49e95 | 2902 | { |
phungductung | 0:e87aa4c49e95 | 2903 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2904 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2905 | { |
phungductung | 0:e87aa4c49e95 | 2906 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2907 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2908 | |
phungductung | 0:e87aa4c49e95 | 2909 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2910 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2911 | |
phungductung | 0:e87aa4c49e95 | 2912 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2913 | } |
phungductung | 0:e87aa4c49e95 | 2914 | } |
phungductung | 0:e87aa4c49e95 | 2915 | /* Write the header block in the IN FIFO */ |
phungductung | 0:e87aa4c49e95 | 2916 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2917 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2918 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2919 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2920 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2921 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2922 | hcryp->Instance->DR = *(uint32_t*)(headeraddr); |
phungductung | 0:e87aa4c49e95 | 2923 | headeraddr+=4; |
phungductung | 0:e87aa4c49e95 | 2924 | } |
phungductung | 0:e87aa4c49e95 | 2925 | |
phungductung | 0:e87aa4c49e95 | 2926 | /* Get tick */ |
phungductung | 0:e87aa4c49e95 | 2927 | tickstart = HAL_GetTick(); |
phungductung | 0:e87aa4c49e95 | 2928 | |
phungductung | 0:e87aa4c49e95 | 2929 | while((hcryp->Instance->SR & CRYP_FLAG_BUSY) == CRYP_FLAG_BUSY) |
phungductung | 0:e87aa4c49e95 | 2930 | { |
phungductung | 0:e87aa4c49e95 | 2931 | /* Check for the Timeout */ |
phungductung | 0:e87aa4c49e95 | 2932 | if((HAL_GetTick() - tickstart ) > CRYPEx_TIMEOUT_VALUE) |
phungductung | 0:e87aa4c49e95 | 2933 | { |
phungductung | 0:e87aa4c49e95 | 2934 | /* Change state */ |
phungductung | 0:e87aa4c49e95 | 2935 | hcryp->State = HAL_CRYP_STATE_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2936 | |
phungductung | 0:e87aa4c49e95 | 2937 | /* Process Unlocked */ |
phungductung | 0:e87aa4c49e95 | 2938 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2939 | |
phungductung | 0:e87aa4c49e95 | 2940 | return HAL_TIMEOUT; |
phungductung | 0:e87aa4c49e95 | 2941 | } |
phungductung | 0:e87aa4c49e95 | 2942 | } |
phungductung | 0:e87aa4c49e95 | 2943 | } |
phungductung | 0:e87aa4c49e95 | 2944 | /* Save formatted counter into the scratch buffer pScratch */ |
phungductung | 0:e87aa4c49e95 | 2945 | for(loopcounter = 0; (loopcounter < 16); loopcounter++) |
phungductung | 0:e87aa4c49e95 | 2946 | { |
phungductung | 0:e87aa4c49e95 | 2947 | hcryp->Init.pScratch[loopcounter] = ctr[loopcounter]; |
phungductung | 0:e87aa4c49e95 | 2948 | } |
phungductung | 0:e87aa4c49e95 | 2949 | /* Reset bit 0 */ |
phungductung | 0:e87aa4c49e95 | 2950 | hcryp->Init.pScratch[15] &= 0xfe; |
phungductung | 0:e87aa4c49e95 | 2951 | /* Select payload phase once the header phase is performed */ |
phungductung | 0:e87aa4c49e95 | 2952 | __HAL_CRYP_SET_PHASE(hcryp, CRYP_PHASE_PAYLOAD); |
phungductung | 0:e87aa4c49e95 | 2953 | |
phungductung | 0:e87aa4c49e95 | 2954 | /* Flush FIFO */ |
phungductung | 0:e87aa4c49e95 | 2955 | __HAL_CRYP_FIFO_FLUSH(hcryp); |
phungductung | 0:e87aa4c49e95 | 2956 | |
phungductung | 0:e87aa4c49e95 | 2957 | /* Set the phase */ |
phungductung | 0:e87aa4c49e95 | 2958 | hcryp->Phase = HAL_CRYP_PHASE_PROCESS; |
phungductung | 0:e87aa4c49e95 | 2959 | } |
phungductung | 0:e87aa4c49e95 | 2960 | /* Set the input and output addresses and start DMA transfer */ |
phungductung | 0:e87aa4c49e95 | 2961 | CRYPEx_GCMCCM_SetDMAConfig(hcryp, inputaddr, Size, outputaddr); |
phungductung | 0:e87aa4c49e95 | 2962 | |
phungductung | 0:e87aa4c49e95 | 2963 | /* Unlock process */ |
phungductung | 0:e87aa4c49e95 | 2964 | __HAL_UNLOCK(hcryp); |
phungductung | 0:e87aa4c49e95 | 2965 | |
phungductung | 0:e87aa4c49e95 | 2966 | /* Return function status */ |
phungductung | 0:e87aa4c49e95 | 2967 | return HAL_OK; |
phungductung | 0:e87aa4c49e95 | 2968 | } |
phungductung | 0:e87aa4c49e95 | 2969 | else |
phungductung | 0:e87aa4c49e95 | 2970 | { |
phungductung | 0:e87aa4c49e95 | 2971 | return HAL_ERROR; |
phungductung | 0:e87aa4c49e95 | 2972 | } |
phungductung | 0:e87aa4c49e95 | 2973 | } |
phungductung | 0:e87aa4c49e95 | 2974 | |
phungductung | 0:e87aa4c49e95 | 2975 | /** |
phungductung | 0:e87aa4c49e95 | 2976 | * @} |
phungductung | 0:e87aa4c49e95 | 2977 | */ |
phungductung | 0:e87aa4c49e95 | 2978 | |
phungductung | 0:e87aa4c49e95 | 2979 | /** @defgroup CRYPEx_Exported_Functions_Group2 CRYPEx IRQ handler management |
phungductung | 0:e87aa4c49e95 | 2980 | * @brief CRYPEx IRQ handler. |
phungductung | 0:e87aa4c49e95 | 2981 | * |
phungductung | 0:e87aa4c49e95 | 2982 | @verbatim |
phungductung | 0:e87aa4c49e95 | 2983 | ============================================================================== |
phungductung | 0:e87aa4c49e95 | 2984 | ##### CRYPEx IRQ handler management ##### |
phungductung | 0:e87aa4c49e95 | 2985 | ============================================================================== |
phungductung | 0:e87aa4c49e95 | 2986 | [..] This section provides CRYPEx IRQ handler function. |
phungductung | 0:e87aa4c49e95 | 2987 | |
phungductung | 0:e87aa4c49e95 | 2988 | @endverbatim |
phungductung | 0:e87aa4c49e95 | 2989 | * @{ |
phungductung | 0:e87aa4c49e95 | 2990 | */ |
phungductung | 0:e87aa4c49e95 | 2991 | |
phungductung | 0:e87aa4c49e95 | 2992 | /** |
phungductung | 0:e87aa4c49e95 | 2993 | * @brief This function handles CRYPEx interrupt request. |
phungductung | 0:e87aa4c49e95 | 2994 | * @param hcryp: pointer to a CRYPEx_HandleTypeDef structure that contains |
phungductung | 0:e87aa4c49e95 | 2995 | * the configuration information for CRYP module |
phungductung | 0:e87aa4c49e95 | 2996 | * @retval None |
phungductung | 0:e87aa4c49e95 | 2997 | */ |
phungductung | 0:e87aa4c49e95 | 2998 | void HAL_CRYPEx_GCMCCM_IRQHandler(CRYP_HandleTypeDef *hcryp) |
phungductung | 0:e87aa4c49e95 | 2999 | { |
phungductung | 0:e87aa4c49e95 | 3000 | switch(CRYP->CR & CRYP_CR_ALGOMODE_DIRECTION) |
phungductung | 0:e87aa4c49e95 | 3001 | { |
phungductung | 0:e87aa4c49e95 | 3002 | case CRYP_CR_ALGOMODE_AES_GCM_ENCRYPT: |
phungductung | 0:e87aa4c49e95 | 3003 | HAL_CRYPEx_AESGCM_Encrypt_IT(hcryp, NULL, 0, NULL); |
phungductung | 0:e87aa4c49e95 | 3004 | break; |
phungductung | 0:e87aa4c49e95 | 3005 | |
phungductung | 0:e87aa4c49e95 | 3006 | case CRYP_CR_ALGOMODE_AES_GCM_DECRYPT: |
phungductung | 0:e87aa4c49e95 | 3007 | HAL_CRYPEx_AESGCM_Decrypt_IT(hcryp, NULL, 0, NULL); |
phungductung | 0:e87aa4c49e95 | 3008 | break; |
phungductung | 0:e87aa4c49e95 | 3009 | |
phungductung | 0:e87aa4c49e95 | 3010 | case CRYP_CR_ALGOMODE_AES_CCM_ENCRYPT: |
phungductung | 0:e87aa4c49e95 | 3011 | HAL_CRYPEx_AESCCM_Encrypt_IT(hcryp, NULL, 0, NULL); |
phungductung | 0:e87aa4c49e95 | 3012 | break; |
phungductung | 0:e87aa4c49e95 | 3013 | |
phungductung | 0:e87aa4c49e95 | 3014 | case CRYP_CR_ALGOMODE_AES_CCM_DECRYPT: |
phungductung | 0:e87aa4c49e95 | 3015 | HAL_CRYPEx_AESCCM_Decrypt_IT(hcryp, NULL, 0, NULL); |
phungductung | 0:e87aa4c49e95 | 3016 | break; |
phungductung | 0:e87aa4c49e95 | 3017 | |
phungductung | 0:e87aa4c49e95 | 3018 | default: |
phungductung | 0:e87aa4c49e95 | 3019 | break; |
phungductung | 0:e87aa4c49e95 | 3020 | } |
phungductung | 0:e87aa4c49e95 | 3021 | } |
phungductung | 0:e87aa4c49e95 | 3022 | |
phungductung | 0:e87aa4c49e95 | 3023 | /** |
phungductung | 0:e87aa4c49e95 | 3024 | * @} |
phungductung | 0:e87aa4c49e95 | 3025 | */ |
phungductung | 0:e87aa4c49e95 | 3026 | |
phungductung | 0:e87aa4c49e95 | 3027 | /** |
phungductung | 0:e87aa4c49e95 | 3028 | * @} |
phungductung | 0:e87aa4c49e95 | 3029 | */ |
phungductung | 0:e87aa4c49e95 | 3030 | #endif /* HAL_CRYP_MODULE_ENABLED */ |
phungductung | 0:e87aa4c49e95 | 3031 | |
phungductung | 0:e87aa4c49e95 | 3032 | /** |
phungductung | 0:e87aa4c49e95 | 3033 | * @} |
phungductung | 0:e87aa4c49e95 | 3034 | */ |
phungductung | 0:e87aa4c49e95 | 3035 | #endif /* STM32F756xx */ |
phungductung | 0:e87aa4c49e95 | 3036 | /** |
phungductung | 0:e87aa4c49e95 | 3037 | * @} |
phungductung | 0:e87aa4c49e95 | 3038 | */ |
phungductung | 0:e87aa4c49e95 | 3039 | |
phungductung | 0:e87aa4c49e95 | 3040 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |