diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_cryp_ex.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_cryp_ex.c | 902 |
1 files changed, 456 insertions, 446 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_cryp_ex.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_cryp_ex.c index c46d2f0bd2..42c4e04ee3 100644 --- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_cryp_ex.c +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_cryp_ex.c @@ -1,448 +1,458 @@ -/**
- ******************************************************************************
- * @file stm32h7xx_hal_cryp_ex.c
- * @author MCD Application Team
- * @brief Extended CRYP HAL module driver
- * This file provides firmware functions to manage the following
- * functionalities of CRYP extension peripheral:
- * + Extended AES processing functions
- *
- @verbatim
- ==============================================================================
- ##### How to use this driver #####
- ==============================================================================
- [..]
- The CRYP extension HAL driver can be used after AES-GCM or AES-CCM
- Encryption/Decryption to get the authentication messages.
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© Copyright (c) 2017 STMicroelectronics.
- * All rights reserved.</center></h2>
- *
- * This software component is licensed by ST under BSD 3-Clause license,
- * the "License"; You may not use this file except in compliance with the
- * License. You may obtain a copy of the License at:
- * opensource.org/licenses/BSD-3-Clause
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32h7xx_hal.h"
-
-/** @addtogroup STM32H7xx_HAL_Driver
- * @{
- */
-#if defined (CRYP)
-/** @defgroup CRYPEx CRYPEx
+/** + ****************************************************************************** + * @file stm32h7xx_hal_cryp_ex.c + * @author MCD Application Team + * @brief Extended CRYP HAL module driver + * This file provides firmware functions to manage the following + * functionalities of CRYP extension peripheral: + * + Extended AES processing functions + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + [..] + The CRYP extension HAL driver can be used after AES-GCM or AES-CCM + Encryption/Decryption to get the authentication messages. + + @endverbatim + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_HAL_Driver + * @{ + */ +#if defined (CRYP) +/** @defgroup CRYPEx CRYPEx * @ingroup RTEMSBSPsARMSTM32H7 - * @brief CRYP Extension HAL module driver.
- * @{
- */
-
-#ifdef HAL_CRYP_MODULE_ENABLED
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/** @addtogroup CRYPEx_Private_Defines
- * @{
- */
-
-#define CRYP_PHASE_INIT 0x00000000U
-#define CRYP_PHASE_HEADER CRYP_CR_GCM_CCMPH_0
-#define CRYP_PHASE_PAYLOAD CRYP_CR_GCM_CCMPH_1
-#define CRYP_PHASE_FINAL CRYP_CR_GCM_CCMPH
-
-#define CRYP_OPERATINGMODE_ENCRYPT 0x00000000U
-#define CRYP_OPERATINGMODE_DECRYPT CRYP_CR_ALGODIR
-
-#define CRYPEx_PHASE_PROCESS 0x02U /*!< CRYP peripheral is in processing phase */
-#define CRYPEx_PHASE_FINAL 0x03U /*!< CRYP peripheral is in final phase this is relevant only with CCM and GCM modes */
-
-/* CTR0 information to use in CCM algorithm */
-#define CRYP_CCM_CTR0_0 0x07FFFFFFU
-#define CRYP_CCM_CTR0_3 0xFFFFFF00U
-
-/**
- * @}
- */
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-
-
-
-/* Exported functions---------------------------------------------------------*/
-/** @addtogroup CRYPEx_Exported_Functions
- * @{
- */
-
-/** @defgroup CRYPEx_Exported_Functions_Group1 Extended AES processing functions
+ * @brief CRYP Extension HAL module driver. + * @{ + */ + +#ifdef HAL_CRYP_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @addtogroup CRYPEx_Private_Defines + * @{ + */ + +#define CRYP_PHASE_INIT 0x00000000U +#define CRYP_PHASE_HEADER CRYP_CR_GCM_CCMPH_0 +#define CRYP_PHASE_PAYLOAD CRYP_CR_GCM_CCMPH_1 +#define CRYP_PHASE_FINAL CRYP_CR_GCM_CCMPH + +#define CRYP_OPERATINGMODE_ENCRYPT 0x00000000U +#define CRYP_OPERATINGMODE_DECRYPT CRYP_CR_ALGODIR + +#define CRYPEx_PHASE_PROCESS 0x02U /*!< CRYP peripheral is in processing phase */ +#define CRYPEx_PHASE_FINAL 0x03U /*!< CRYP peripheral is in final phase this is relevant only with CCM and GCM modes */ + +/* CTR0 information to use in CCM algorithm */ +#define CRYP_CCM_CTR0_0 0x07FFFFFFU +#define CRYP_CCM_CTR0_3 0xFFFFFF00U + +/** + * @} + */ + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ + + + +/* Exported functions---------------------------------------------------------*/ +/** @addtogroup CRYPEx_Exported_Functions + * @{ + */ + +/** @defgroup CRYPEx_Exported_Functions_Group1 Extended AES processing functions * @ingroup RTEMSBSPsARMSTM32H7 - * @brief CRYPEx Extended processing functions.
- *
-@verbatim
- ==============================================================================
- ##### Extended AES processing functions #####
- ==============================================================================
- [..] This section provides functions allowing to generate the authentication
- TAG in Polling mode
- (+)HAL_CRYPEx_AESGCM_GenerateAuthTAG
- (+)HAL_CRYPEx_AESCCM_GenerateAuthTAG
- they should be used after Encrypt/Decrypt operation.
-
-@endverbatim
- * @{
- */
-
-
-/**
- * @brief generate the GCM authentication TAG.
- * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains
- * the configuration information for CRYP module
- * @param AuthTag: Pointer to the authentication buffer
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_CRYPEx_AESGCM_GenerateAuthTAG(CRYP_HandleTypeDef *hcryp, uint32_t *AuthTag, uint32_t Timeout)
-{
- uint32_t tickstart;
- uint64_t headerlength = (uint64_t)(hcryp->Init.HeaderSize) * 32U; /* Header length in bits */
- uint64_t inputlength = (uint64_t)hcryp->SizesSum * 8U; /* input length in bits */
- uint32_t tagaddr = (uint32_t)AuthTag;
-
- if (hcryp->State == HAL_CRYP_STATE_READY)
- {
- /* Process locked */
- __HAL_LOCK(hcryp);
-
- /* Change the CRYP peripheral state */
- hcryp->State = HAL_CRYP_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if (hcryp->Phase == CRYPEx_PHASE_PROCESS)
- {
- /* Change the CRYP phase */
- hcryp->Phase = CRYPEx_PHASE_FINAL;
- }
- else /* Initialization phase has not been performed*/
- {
- /* Disable the Peripheral */
- __HAL_CRYP_DISABLE(hcryp);
-
- /* Sequence error code field */
- hcryp->ErrorCode |= HAL_CRYP_ERROR_AUTH_TAG_SEQUENCE;
-
- /* Change the CRYP peripheral state */
- hcryp->State = HAL_CRYP_STATE_READY;
-
- /* Process unlocked */
- __HAL_UNLOCK(hcryp);
- return HAL_ERROR;
- }
-
- /* Disable CRYP to start the final phase */
- __HAL_CRYP_DISABLE(hcryp);
-
- /* Select final phase */
- MODIFY_REG(hcryp->Instance->CR, CRYP_CR_GCM_CCMPH, CRYP_PHASE_FINAL);
-
- /*ALGODIR bit must be set to ‘0’.*/
- hcryp->Instance->CR &= ~CRYP_CR_ALGODIR;
-
- /* Enable the CRYP peripheral */
- __HAL_CRYP_ENABLE(hcryp);
-
- /* Write the number of bits in header (64 bits) followed by the number of bits
- in the payload */
-#if !defined (CRYP_VER_2_2)
- /* STM32H7 rev.B and above : data has to be inserted normally (no swapping)*/
- if (hcryp->Version >= REV_ID_B)
-#endif /*End of not defined CRYP_VER_2_2*/
- {
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = (uint32_t)(headerlength);
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = (uint32_t)(inputlength);
- }
-#if !defined (CRYP_VER_2_2)
- else/* data has to be swapped according to the DATATYPE */
- {
- if (hcryp->Init.DataType == CRYP_DATATYPE_1B)
- {
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = __RBIT((uint32_t)(headerlength));
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = __RBIT((uint32_t)(inputlength));
- }
- else if (hcryp->Init.DataType == CRYP_DATATYPE_8B)
- {
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = __REV((uint32_t)(headerlength));
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = __REV((uint32_t)(inputlength));
- }
- else if (hcryp->Init.DataType == CRYP_DATATYPE_16B)
- {
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = __ROR((uint32_t)headerlength, 16U);
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = __ROR((uint32_t)inputlength, 16U);
- }
- else if (hcryp->Init.DataType == CRYP_DATATYPE_32B)
- {
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = (uint32_t)(headerlength);
- hcryp->Instance->DIN = 0U;
- hcryp->Instance->DIN = (uint32_t)(inputlength);
- }
- else
- {
- /* Nothing to do */
- }
- }
-#endif /*End of not defined CRYP_VER_2_2*/
- /* Wait for OFNE flag to be raised */
- tickstart = HAL_GetTick();
- while (HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE))
- {
- /* Check for the Timeout */
- if (Timeout != HAL_MAX_DELAY)
- {
- if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
- {
- /* Disable the CRYP Peripheral Clock */
- __HAL_CRYP_DISABLE(hcryp);
-
- /* Change state */
- hcryp->ErrorCode |= HAL_CRYP_ERROR_TIMEOUT;
- hcryp->State = HAL_CRYP_STATE_READY;
-
- /* Process unlocked */
- __HAL_UNLOCK(hcryp);
- return HAL_ERROR;
- }
- }
- }
-
- /* Read the authentication TAG in the output FIFO */
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
- tagaddr += 4U;
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
- tagaddr += 4U;
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
- tagaddr += 4U;
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
-
- /* Disable the peripheral */
- __HAL_CRYP_DISABLE(hcryp);
-
- /* Change the CRYP peripheral state */
- hcryp->State = HAL_CRYP_STATE_READY;
-
- /* Process unlocked */
- __HAL_UNLOCK(hcryp);
- }
- else
- {
- /* Busy error code field */
- hcryp->ErrorCode |= HAL_CRYP_ERROR_BUSY;
- return HAL_ERROR;
- }
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief AES CCM Authentication TAG generation.
- * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains
- * the configuration information for CRYP module
- * @param AuthTag: Pointer to the authentication buffer
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_CRYPEx_AESCCM_GenerateAuthTAG(CRYP_HandleTypeDef *hcryp, uint32_t *AuthTag, uint32_t Timeout)
-{
- uint32_t tagaddr = (uint32_t)AuthTag;
- uint32_t ctr0 [4] = {0};
- uint32_t ctr0addr = (uint32_t)ctr0;
- uint32_t tickstart;
-
- if (hcryp->State == HAL_CRYP_STATE_READY)
- {
- /* Process locked */
- __HAL_LOCK(hcryp);
-
- /* Change the CRYP peripheral state */
- hcryp->State = HAL_CRYP_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if (hcryp->Phase == CRYPEx_PHASE_PROCESS)
- {
- /* Change the CRYP phase */
- hcryp->Phase = CRYPEx_PHASE_FINAL;
- }
- else /* Initialization phase has not been performed*/
- {
- /* Disable the peripheral */
- __HAL_CRYP_DISABLE(hcryp);
-
- /* Sequence error code field */
- hcryp->ErrorCode |= HAL_CRYP_ERROR_AUTH_TAG_SEQUENCE;
-
- /* Change the CRYP peripheral state */
- hcryp->State = HAL_CRYP_STATE_READY;
-
- /* Process unlocked */
- __HAL_UNLOCK(hcryp);
- return HAL_ERROR;
- }
-
- /* Disable CRYP to start the final phase */
- __HAL_CRYP_DISABLE(hcryp);
-
- /* Select final phase & ALGODIR bit must be set to ‘0’. */
- MODIFY_REG(hcryp->Instance->CR, CRYP_CR_GCM_CCMPH | CRYP_CR_ALGODIR, CRYP_PHASE_FINAL | CRYP_OPERATINGMODE_ENCRYPT);
-
- /* Enable the CRYP peripheral */
- __HAL_CRYP_ENABLE(hcryp);
-
- /* Write the counter block in the IN FIFO, CTR0 information from B0
- data has to be swapped according to the DATATYPE*/
- ctr0[0] = (hcryp->Init.B0[0]) & CRYP_CCM_CTR0_0;
- ctr0[1] = hcryp->Init.B0[1];
- ctr0[2] = hcryp->Init.B0[2];
- ctr0[3] = hcryp->Init.B0[3] & CRYP_CCM_CTR0_3;
-
-#if !defined (CRYP_VER_2_2)
- /*STM32H7 rev.B and above : data has to be inserted normally (no swapping)*/
- if (hcryp->Version >= REV_ID_B)
-#endif /*End of not defined CRYP_VER_2_2*/
- {
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- ctr0addr += 4U;
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- ctr0addr += 4U;
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- ctr0addr += 4U;
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- }
-#if !defined (CRYP_VER_2_2)
- else /* data has to be swapped according to the DATATYPE */
- {
- if (hcryp->Init.DataType == CRYP_DATATYPE_8B)
- {
- hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr));
- ctr0addr += 4U;
- hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr));
- ctr0addr += 4U;
- hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr));
- ctr0addr += 4U;
- hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr));
- }
- else if (hcryp->Init.DataType == CRYP_DATATYPE_16B)
- {
- hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U);
- ctr0addr += 4U;
- hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U);
- ctr0addr += 4U;
- hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U);
- ctr0addr += 4U;
- hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U);
- }
- else if (hcryp->Init.DataType == CRYP_DATATYPE_1B)
- {
- hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr));
- ctr0addr += 4U;
- hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr));
- ctr0addr += 4U;
- hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr));
- ctr0addr += 4U;
- hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr));
- }
- else
- {
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- ctr0addr += 4U;
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- ctr0addr += 4U;
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- ctr0addr += 4U;
- hcryp->Instance->DIN = *(uint32_t *)(ctr0addr);
- }
- }
-#endif /*End of not defined CRYP_VER_2_2*/
- /* Wait for OFNE flag to be raised */
- tickstart = HAL_GetTick();
- while (HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE))
- {
- /* Check for the Timeout */
- if (Timeout != HAL_MAX_DELAY)
- {
- if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
- {
- /* Disable the CRYP peripheral Clock */
- __HAL_CRYP_DISABLE(hcryp);
-
- /* Change state */
- hcryp->ErrorCode |= HAL_CRYP_ERROR_TIMEOUT;
- hcryp->State = HAL_CRYP_STATE_READY;
-
- /* Process unlocked */
- __HAL_UNLOCK(hcryp);
- return HAL_ERROR;
- }
- }
- }
-
- /* Read the Auth TAG in the IN FIFO */
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
- tagaddr += 4U;
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
- tagaddr += 4U;
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
- tagaddr += 4U;
- *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT;
-
- /* Change the CRYP peripheral state */
- hcryp->State = HAL_CRYP_STATE_READY;
-
- /* Process unlocked */
- __HAL_UNLOCK(hcryp);
-
- /* Disable CRYP */
- __HAL_CRYP_DISABLE(hcryp);
- }
- else
- {
- /* Busy error code field */
- hcryp->ErrorCode = HAL_CRYP_ERROR_BUSY;
- return HAL_ERROR;
- }
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @}
- */
-
-
-#endif /* HAL_CRYP_MODULE_ENABLED */
-
-/**
- * @}
- */
-#endif /* CRYP */
-/**
- * @}
- */
-
-/**
- * @}
- */
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+ * @brief CRYPEx Extended processing functions. + * +@verbatim + ============================================================================== + ##### Extended AES processing functions ##### + ============================================================================== + [..] This section provides functions allowing to generate the authentication + TAG in Polling mode + (+)HAL_CRYPEx_AESGCM_GenerateAuthTAG + (+)HAL_CRYPEx_AESCCM_GenerateAuthTAG + they should be used after Encrypt/Decrypt operation. + +@endverbatim + * @{ + */ + + +/** + * @brief generate the GCM authentication TAG. + * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains + * the configuration information for CRYP module + * @param AuthTag: Pointer to the authentication buffer + * the AuthTag generated here is 128bits length, if the TAG length is + * less than 128bits, user should consider only the valid part of AuthTag + * buffer which correspond exactly to TAG length. + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_CRYPEx_AESGCM_GenerateAuthTAG(CRYP_HandleTypeDef *hcryp, uint32_t *AuthTag, uint32_t Timeout) +{ + uint32_t tickstart; + uint64_t headerlength = (uint64_t)(hcryp->Init.HeaderSize) * 32U; /* Header length in bits */ + uint64_t inputlength = (uint64_t)hcryp->SizesSum * 8U; /* Input length in bits */ + uint32_t tagaddr = (uint32_t)AuthTag; + + /* Correct header length if Init.HeaderSize is actually in bytes */ + if (hcryp->Init.HeaderWidthUnit == CRYP_HEADERWIDTHUNIT_BYTE) + { + headerlength /= 4U; + } + + if (hcryp->State == HAL_CRYP_STATE_READY) + { + /* Process locked */ + __HAL_LOCK(hcryp); + + /* Change the CRYP peripheral state */ + hcryp->State = HAL_CRYP_STATE_BUSY; + + /* Check if initialization phase has already been performed */ + if (hcryp->Phase == CRYPEx_PHASE_PROCESS) + { + /* Change the CRYP phase */ + hcryp->Phase = CRYPEx_PHASE_FINAL; + } + else /* Initialization phase has not been performed*/ + { + /* Disable the Peripheral */ + __HAL_CRYP_DISABLE(hcryp); + + /* Sequence error code field */ + hcryp->ErrorCode |= HAL_CRYP_ERROR_AUTH_TAG_SEQUENCE; + + /* Change the CRYP peripheral state */ + hcryp->State = HAL_CRYP_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hcryp); + return HAL_ERROR; + } + + /* Disable CRYP to start the final phase */ + __HAL_CRYP_DISABLE(hcryp); + + /* Select final phase */ + MODIFY_REG(hcryp->Instance->CR, CRYP_CR_GCM_CCMPH, CRYP_PHASE_FINAL); + + /*ALGODIR bit must be set to '0'.*/ + hcryp->Instance->CR &= ~CRYP_CR_ALGODIR; + + /* Enable the CRYP peripheral */ + __HAL_CRYP_ENABLE(hcryp); + + /* Write the number of bits in header (64 bits) followed by the number of bits + in the payload */ +#if !defined (CRYP_VER_2_2) + /* STM32H7 rev.B and above : data has to be inserted normally (no swapping)*/ + if (hcryp->Version >= REV_ID_B) +#endif /*End of not defined CRYP_VER_2_2*/ + { + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = (uint32_t)(headerlength); + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = (uint32_t)(inputlength); + } +#if !defined (CRYP_VER_2_2) + else/* data has to be swapped according to the DATATYPE */ + { + if (hcryp->Init.DataType == CRYP_BIT_SWAP) + { + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = __RBIT((uint32_t)(headerlength)); + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = __RBIT((uint32_t)(inputlength)); + } + else if (hcryp->Init.DataType == CRYP_BYTE_SWAP) + { + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = __REV((uint32_t)(headerlength)); + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = __REV((uint32_t)(inputlength)); + } + else if (hcryp->Init.DataType == CRYP_HALFWORD_SWAP) + { + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = __ROR((uint32_t)headerlength, 16U); + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = __ROR((uint32_t)inputlength, 16U); + } + else if (hcryp->Init.DataType == CRYP_NO_SWAP) + { + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = (uint32_t)(headerlength); + hcryp->Instance->DIN = 0U; + hcryp->Instance->DIN = (uint32_t)(inputlength); + } + else + { + /* Nothing to do */ + } + } +#endif /*End of not defined CRYP_VER_2_2*/ + /* Wait for OFNE flag to be raised */ + tickstart = HAL_GetTick(); + while (HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE)) + { + /* Check for the Timeout */ + if (Timeout != HAL_MAX_DELAY) + { + if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U)) + { + /* Disable the CRYP Peripheral Clock */ + __HAL_CRYP_DISABLE(hcryp); + + /* Change state */ + hcryp->ErrorCode |= HAL_CRYP_ERROR_TIMEOUT; + hcryp->State = HAL_CRYP_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hcryp); + return HAL_ERROR; + } + } + } + + /* Read the authentication TAG in the output FIFO */ + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + tagaddr += 4U; + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + tagaddr += 4U; + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + tagaddr += 4U; + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + + /* Disable the peripheral */ + __HAL_CRYP_DISABLE(hcryp); + + /* Change the CRYP peripheral state */ + hcryp->State = HAL_CRYP_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hcryp); + } + else + { + /* Busy error code field */ + hcryp->ErrorCode |= HAL_CRYP_ERROR_BUSY; + return HAL_ERROR; + } + /* Return function status */ + return HAL_OK; +} + +/** + * @brief AES CCM Authentication TAG generation. + * @param hcryp: pointer to a CRYP_HandleTypeDef structure that contains + * the configuration information for CRYP module + * @param AuthTag: Pointer to the authentication buffer + * the AuthTag generated here is 128bits length, if the TAG length is + * less than 128bits, user should consider only the valid part of AuthTag + * buffer which correspond exactly to TAG length. + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_CRYPEx_AESCCM_GenerateAuthTAG(CRYP_HandleTypeDef *hcryp, uint32_t *AuthTag, uint32_t Timeout) +{ + uint32_t tagaddr = (uint32_t)AuthTag; + uint32_t ctr0 [4] = {0}; + uint32_t ctr0addr = (uint32_t)ctr0; + uint32_t tickstart; + + if (hcryp->State == HAL_CRYP_STATE_READY) + { + /* Process locked */ + __HAL_LOCK(hcryp); + + /* Change the CRYP peripheral state */ + hcryp->State = HAL_CRYP_STATE_BUSY; + + /* Check if initialization phase has already been performed */ + if (hcryp->Phase == CRYPEx_PHASE_PROCESS) + { + /* Change the CRYP phase */ + hcryp->Phase = CRYPEx_PHASE_FINAL; + } + else /* Initialization phase has not been performed*/ + { + /* Disable the peripheral */ + __HAL_CRYP_DISABLE(hcryp); + + /* Sequence error code field */ + hcryp->ErrorCode |= HAL_CRYP_ERROR_AUTH_TAG_SEQUENCE; + + /* Change the CRYP peripheral state */ + hcryp->State = HAL_CRYP_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hcryp); + return HAL_ERROR; + } + + /* Disable CRYP to start the final phase */ + __HAL_CRYP_DISABLE(hcryp); + + /* Select final phase & ALGODIR bit must be set to '0'. */ + MODIFY_REG(hcryp->Instance->CR, CRYP_CR_GCM_CCMPH | CRYP_CR_ALGODIR, CRYP_PHASE_FINAL | CRYP_OPERATINGMODE_ENCRYPT); + + /* Enable the CRYP peripheral */ + __HAL_CRYP_ENABLE(hcryp); + + /* Write the counter block in the IN FIFO, CTR0 information from B0 + data has to be swapped according to the DATATYPE*/ + ctr0[0] = (hcryp->Init.B0[0]) & CRYP_CCM_CTR0_0; + ctr0[1] = hcryp->Init.B0[1]; + ctr0[2] = hcryp->Init.B0[2]; + ctr0[3] = hcryp->Init.B0[3] & CRYP_CCM_CTR0_3; + +#if !defined (CRYP_VER_2_2) + /*STM32H7 rev.B and above : data has to be inserted normally (no swapping)*/ + if (hcryp->Version >= REV_ID_B) +#endif /*End of not defined CRYP_VER_2_2*/ + { + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + ctr0addr += 4U; + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + ctr0addr += 4U; + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + ctr0addr += 4U; + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + } +#if !defined (CRYP_VER_2_2) + else /* data has to be swapped according to the DATATYPE */ + { + if (hcryp->Init.DataType == CRYP_BYTE_SWAP) + { + hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr)); + ctr0addr += 4U; + hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr)); + ctr0addr += 4U; + hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr)); + ctr0addr += 4U; + hcryp->Instance->DIN = __REV(*(uint32_t *)(ctr0addr)); + } + else if (hcryp->Init.DataType == CRYP_HALFWORD_SWAP) + { + hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U); + ctr0addr += 4U; + hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U); + ctr0addr += 4U; + hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U); + ctr0addr += 4U; + hcryp->Instance->DIN = __ROR(*(uint32_t *)(ctr0addr), 16U); + } + else if (hcryp->Init.DataType == CRYP_BIT_SWAP) + { + hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr)); + ctr0addr += 4U; + hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr)); + ctr0addr += 4U; + hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr)); + ctr0addr += 4U; + hcryp->Instance->DIN = __RBIT(*(uint32_t *)(ctr0addr)); + } + else + { + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + ctr0addr += 4U; + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + ctr0addr += 4U; + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + ctr0addr += 4U; + hcryp->Instance->DIN = *(uint32_t *)(ctr0addr); + } + } +#endif /*End of not defined CRYP_VER_2_2*/ + /* Wait for OFNE flag to be raised */ + tickstart = HAL_GetTick(); + while (HAL_IS_BIT_CLR(hcryp->Instance->SR, CRYP_FLAG_OFNE)) + { + /* Check for the Timeout */ + if (Timeout != HAL_MAX_DELAY) + { + if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U)) + { + /* Disable the CRYP peripheral Clock */ + __HAL_CRYP_DISABLE(hcryp); + + /* Change state */ + hcryp->ErrorCode |= HAL_CRYP_ERROR_TIMEOUT; + hcryp->State = HAL_CRYP_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hcryp); + return HAL_ERROR; + } + } + } + + /* Read the Auth TAG in the IN FIFO */ + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + tagaddr += 4U; + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + tagaddr += 4U; + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + tagaddr += 4U; + *(uint32_t *)(tagaddr) = hcryp->Instance->DOUT; + + /* Change the CRYP peripheral state */ + hcryp->State = HAL_CRYP_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hcryp); + + /* Disable CRYP */ + __HAL_CRYP_DISABLE(hcryp); + } + else + { + /* Busy error code field */ + hcryp->ErrorCode = HAL_CRYP_ERROR_BUSY; + return HAL_ERROR; + } + /* Return function status */ + return HAL_OK; +} + +/** + * @} + */ + + +#endif /* HAL_CRYP_MODULE_ENABLED */ + +/** + * @} + */ +#endif /* CRYP */ +/** + * @} + */ + +/** + * @} + */ |