mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_aes_util.c
- Committer:
- janekm
- Date:
- 2014-09-16
- Revision:
- 310:6188e0254baa
- Parent:
- 106:ced8cbb51063
File content as of revision 310:6188e0254baa:
/** ****************************************************************************** * @file stm32l1xx_aes_util.c * @author MCD Application Team * @version V1.3.0 * @date 31-January-2014 * @brief This file provides high level functions to encrypt and decrypt an * input message using AES in ECB/CBC/CTR modes. * * @verbatim ================================================================================ ##### How to use this driver ##### ================================================================================ [..] (#) Enable The AES controller clock using RCC_AHBPeriphClockCmd(RCC_AHBPeriph_AES, ENABLE); function. (#) Use AES_ECB_Encrypt() function to encrypt an input message in ECB mode. (#) Use AES_ECB_Decrypt() function to decrypt an input message in ECB mode. (#) Use AES_CBC_Encrypt() function to encrypt an input message in CBC mode. (#) Use AES_CBC_Decrypt() function to decrypt an input message in CBC mode. (#) Use AES_CTR_Encrypt() function to encrypt an input message in CTR mode. (#) Use AES_CTR_Decrypt() function to decrypt an input message in CTR mode. * @endverbatim * ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32l1xx_aes.h" /** @addtogroup STM32L1xx_StdPeriph_Driver * @{ */ /** @addtogroup AES * @brief AES driver modules * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ #define AES_CC_TIMEOUT ((uint32_t) 0x00010000) /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /** @defgroup AES_Private_Functions * @{ */ /** @defgroup AES_Group6 High Level AES functions * @brief High Level AES functions * @verbatim ================================================================================ ##### High Level AES functions ##### ================================================================================ @endverbatim * @{ */ /** * @brief Encrypt using AES in ECB Mode * @param Key: Key used for AES algorithm. * @param Input: pointer to the Input buffer. * @param Ilength: length of the Input buffer, must be a multiple of 16 bytes. * @param Output: pointer to the returned buffer. * @retval An ErrorStatus enumeration value: * - SUCCESS: Operation done * - ERROR: Operation failed */ ErrorStatus AES_ECB_Encrypt(uint8_t* Key, uint8_t* Input, uint32_t Ilength, uint8_t* Output) { AES_InitTypeDef AES_InitStructure; AES_KeyInitTypeDef AES_KeyInitStructure; ErrorStatus status = SUCCESS; uint32_t keyaddr = (uint32_t)Key; uint32_t inputaddr = (uint32_t)Input; uint32_t outputaddr = (uint32_t)Output; __IO uint32_t counter = 0; uint32_t ccstatus = 0; uint32_t i = 0; /* AES Key initialisation */ AES_KeyInitStructure.AES_Key3 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key2 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key1 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key0 = __REV(*(uint32_t*)(keyaddr)); AES_KeyInit(&AES_KeyInitStructure); /* AES configuration */ AES_InitStructure.AES_Operation = AES_Operation_Encryp; AES_InitStructure.AES_Chaining = AES_Chaining_ECB; AES_InitStructure.AES_DataType = AES_DataType_8b; AES_Init(&AES_InitStructure); /* Enable AES */ AES_Cmd(ENABLE); for(i = 0; ((i < Ilength) && (status != ERROR)); i += 16) { AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; /* Wait for CCF flag to be set */ counter = 0; do { ccstatus = AES_GetFlagStatus(AES_FLAG_CCF); counter++; }while((counter != AES_CC_TIMEOUT) && (ccstatus == RESET)); if (ccstatus == RESET) { status = ERROR; } else { /* Clear CCF flag */ AES_ClearFlag(AES_FLAG_CCF); /* Read cipher text */ *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; } } /* Disable AES before starting new processing */ AES_Cmd(DISABLE); return status; } /** * @brief Decrypt using AES in ECB Mode * @param Key: Key used for AES algorithm. * @param Input: pointer to the Input buffer. * @param Ilength: length of the Input buffer, must be a multiple of 16 bytes. * @param Output: pointer to the returned buffer. * @retval An ErrorStatus enumeration value: * - SUCCESS: Operation done * - ERROR: Operation failed */ ErrorStatus AES_ECB_Decrypt(uint8_t* Key, uint8_t* Input, uint32_t Ilength, uint8_t* Output) { AES_InitTypeDef AES_InitStructure; AES_KeyInitTypeDef AES_KeyInitStructure; ErrorStatus status = SUCCESS; uint32_t keyaddr = (uint32_t)Key; uint32_t inputaddr = (uint32_t)Input; uint32_t outputaddr = (uint32_t)Output; __IO uint32_t counter = 0; uint32_t ccstatus = 0; uint32_t i = 0; /* AES Key initialisation */ AES_KeyInitStructure.AES_Key3 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key2 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key1 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key0 = __REV(*(uint32_t*)(keyaddr)); AES_KeyInit(&AES_KeyInitStructure); /* AES configuration */ AES_InitStructure.AES_Operation = AES_Operation_KeyDerivAndDecryp; AES_InitStructure.AES_Chaining = AES_Chaining_ECB; AES_InitStructure.AES_DataType = AES_DataType_8b; AES_Init(&AES_InitStructure); /* Enable AES */ AES_Cmd(ENABLE); for(i = 0; ((i < Ilength) && (status != ERROR)); i += 16) { AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; /* Wait for CCF flag to be set */ counter = 0; do { ccstatus = AES_GetFlagStatus(AES_FLAG_CCF); counter++; }while((counter != AES_CC_TIMEOUT) && (ccstatus == RESET)); if (ccstatus == RESET) { status = ERROR; } else { /* Clear CCF flag */ AES_ClearFlag(AES_FLAG_CCF); /* Read cipher text */ *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; } } /* Disable AES before starting new processing */ AES_Cmd(DISABLE); return status; } /** * @brief Encrypt using AES in CBC Mode * @param InitVectors: Initialisation Vectors used for AES algorithm. * @param Key: Key used for AES algorithm. * @param Input: pointer to the Input buffer. * @param Ilength: length of the Input buffer, must be a multiple of 16 bytes. * @param Output: pointer to the returned buffer. * @retval An ErrorStatus enumeration value: * - SUCCESS: Operation done * - ERROR: Operation failed */ ErrorStatus AES_CBC_Encrypt(uint8_t* Key, uint8_t InitVectors[16], uint8_t* Input, uint32_t Ilength, uint8_t* Output) { AES_InitTypeDef AES_InitStructure; AES_KeyInitTypeDef AES_KeyInitStructure; AES_IVInitTypeDef AES_IVInitStructure; ErrorStatus status = SUCCESS; uint32_t keyaddr = (uint32_t)Key; uint32_t inputaddr = (uint32_t)Input; uint32_t outputaddr = (uint32_t)Output; uint32_t ivaddr = (uint32_t)InitVectors; __IO uint32_t counter = 0; uint32_t ccstatus = 0; uint32_t i = 0; /* AES Key initialisation*/ AES_KeyInitStructure.AES_Key3 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key2 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key1 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key0 = __REV(*(uint32_t*)(keyaddr)); AES_KeyInit(&AES_KeyInitStructure); /* AES Initialization Vectors */ AES_IVInitStructure.AES_IV3 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV2 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV1 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV0 = __REV(*(uint32_t*)(ivaddr)); AES_IVInit(&AES_IVInitStructure); /* AES configuration */ AES_InitStructure.AES_Operation = AES_Operation_Encryp; AES_InitStructure.AES_Chaining = AES_Chaining_CBC; AES_InitStructure.AES_DataType = AES_DataType_8b; AES_Init(&AES_InitStructure); /* Enable AES */ AES_Cmd(ENABLE); for(i = 0; ((i < Ilength) && (status != ERROR)); i += 16) { AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; /* Wait for CCF flag to be set */ counter = 0; do { ccstatus = AES_GetFlagStatus(AES_FLAG_CCF); counter++; }while((counter != AES_CC_TIMEOUT) && (ccstatus == RESET)); if (ccstatus == RESET) { status = ERROR; } else { /* Clear CCF flag */ AES_ClearFlag(AES_FLAG_CCF); /* Read cipher text */ *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; } } /* Disable AES before starting new processing */ AES_Cmd(DISABLE); return status; } /** * @brief Decrypt using AES in CBC Mode * @param InitVectors: Initialisation Vectors used for AES algorithm. * @param Key: Key used for AES algorithm. * @param Input: pointer to the Input buffer. * @param Ilength: length of the Input buffer, must be a multiple of 16 bytes. * @param Output: pointer to the returned buffer. * @retval An ErrorStatus enumeration value: * - SUCCESS: Operation done * - ERROR: Operation failed */ ErrorStatus AES_CBC_Decrypt(uint8_t* Key, uint8_t InitVectors[16], uint8_t* Input, uint32_t Ilength, uint8_t* Output) { AES_InitTypeDef AES_InitStructure; AES_KeyInitTypeDef AES_KeyInitStructure; AES_IVInitTypeDef AES_IVInitStructure; ErrorStatus status = SUCCESS; uint32_t keyaddr = (uint32_t)Key; uint32_t inputaddr = (uint32_t)Input; uint32_t outputaddr = (uint32_t)Output; uint32_t ivaddr = (uint32_t)InitVectors; __IO uint32_t counter = 0; uint32_t ccstatus = 0; uint32_t i = 0; /* AES Key initialisation*/ AES_KeyInitStructure.AES_Key3 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key2 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key1 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key0 = __REV(*(uint32_t*)(keyaddr)); AES_KeyInit(&AES_KeyInitStructure); /* AES Initialization Vectors */ AES_IVInitStructure.AES_IV3 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV2 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV1 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV0 = __REV(*(uint32_t*)(ivaddr)); AES_IVInit(&AES_IVInitStructure); /* AES configuration */ AES_InitStructure.AES_Operation = AES_Operation_KeyDerivAndDecryp; AES_InitStructure.AES_Chaining = AES_Chaining_CBC; AES_InitStructure.AES_DataType = AES_DataType_8b; AES_Init(&AES_InitStructure); /* Enable AES */ AES_Cmd(ENABLE); for(i = 0; ((i < Ilength) && (status != ERROR)); i += 16) { AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; /* Wait for CCF flag to be set */ counter = 0; do { ccstatus = AES_GetFlagStatus(AES_FLAG_CCF); counter++; }while((counter != AES_CC_TIMEOUT) && (ccstatus == RESET)); if (ccstatus == RESET) { status = ERROR; } else { /* Clear CCF flag */ AES_ClearFlag(AES_FLAG_CCF); /* Read cipher text */ *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; } } /* Disable AES before starting new processing */ AES_Cmd(DISABLE); return status; } /** * @brief Encrypt using AES in CTR Mode * @param InitVectors: Initialisation Vectors used for AES algorithm. * @param Key: Key used for AES algorithm. * @param Input: pointer to the Input buffer. * @param Ilength: length of the Input buffer, must be a multiple of 16 bytes. * @param Output: pointer to the returned buffer. * @retval An ErrorStatus enumeration value: * - SUCCESS: Operation done * - ERROR: Operation failed */ ErrorStatus AES_CTR_Encrypt(uint8_t* Key, uint8_t InitVectors[16], uint8_t* Input, uint32_t Ilength, uint8_t* Output) { AES_InitTypeDef AES_InitStructure; AES_KeyInitTypeDef AES_KeyInitStructure; AES_IVInitTypeDef AES_IVInitStructure; ErrorStatus status = SUCCESS; uint32_t keyaddr = (uint32_t)Key; uint32_t inputaddr = (uint32_t)Input; uint32_t outputaddr = (uint32_t)Output; uint32_t ivaddr = (uint32_t)InitVectors; __IO uint32_t counter = 0; uint32_t ccstatus = 0; uint32_t i = 0; /* AES key initialisation*/ AES_KeyInitStructure.AES_Key3 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key2 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key1 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key0 = __REV(*(uint32_t*)(keyaddr)); AES_KeyInit(&AES_KeyInitStructure); /* AES Initialization Vectors */ AES_IVInitStructure.AES_IV3 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV2= __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV1 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV0= __REV(*(uint32_t*)(ivaddr)); AES_IVInit(&AES_IVInitStructure); /* AES configuration */ AES_InitStructure.AES_Operation = AES_Operation_Encryp; AES_InitStructure.AES_Chaining = AES_Chaining_CTR; AES_InitStructure.AES_DataType = AES_DataType_8b; AES_Init(&AES_InitStructure); /* Enable AES */ AES_Cmd(ENABLE); for(i = 0; ((i < Ilength) && (status != ERROR)); i += 16) { AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; /* Wait for CCF flag to be set */ counter = 0; do { ccstatus = AES_GetFlagStatus(AES_FLAG_CCF); counter++; }while((counter != AES_CC_TIMEOUT) && (ccstatus == RESET)); if (ccstatus == RESET) { status = ERROR; } else { /* Clear CCF flag */ AES_ClearFlag(AES_FLAG_CCF); /* Read cipher text */ *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; } } /* Disable AES before starting new processing */ AES_Cmd(DISABLE); return status; } /** * @brief Decrypt using AES in CTR Mode * @param InitVectors: Initialisation Vectors used for AES algorithm. * @param Key: Key used for AES algorithm. * @param Input: pointer to the Input buffer. * @param Ilength: length of the Input buffer, must be a multiple of 16 bytes. * @param Output: pointer to the returned buffer. * @retval An ErrorStatus enumeration value: * - SUCCESS: Operation done * - ERROR: Operation failed */ ErrorStatus AES_CTR_Decrypt(uint8_t* Key, uint8_t InitVectors[16], uint8_t* Input, uint32_t Ilength, uint8_t* Output) { AES_InitTypeDef AES_InitStructure; AES_KeyInitTypeDef AES_KeyInitStructure; AES_IVInitTypeDef AES_IVInitStructure; ErrorStatus status = SUCCESS; uint32_t keyaddr = (uint32_t)Key; uint32_t inputaddr = (uint32_t)Input; uint32_t outputaddr = (uint32_t)Output; uint32_t ivaddr = (uint32_t)InitVectors; __IO uint32_t counter = 0; uint32_t ccstatus = 0; uint32_t i = 0; /* AES Key initialisation*/ AES_KeyInitStructure.AES_Key3 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key2 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key1 = __REV(*(uint32_t*)(keyaddr)); keyaddr += 4; AES_KeyInitStructure.AES_Key0 = __REV(*(uint32_t*)(keyaddr)); AES_KeyInit(&AES_KeyInitStructure); /* AES Initialization Vectors */ AES_IVInitStructure.AES_IV3 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV2 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV1 = __REV(*(uint32_t*)(ivaddr)); ivaddr += 4; AES_IVInitStructure.AES_IV0 = __REV(*(uint32_t*)(ivaddr)); AES_IVInit(&AES_IVInitStructure); /* AES configuration */ AES_InitStructure.AES_Operation = AES_Operation_KeyDerivAndDecryp; AES_InitStructure.AES_Chaining = AES_Chaining_CTR; AES_InitStructure.AES_DataType = AES_DataType_8b; AES_Init(&AES_InitStructure); /* Enable AES */ AES_Cmd(ENABLE); for(i = 0; ((i < Ilength) && (status != ERROR)); i += 16) { AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; AES_WriteSubData(*(uint32_t*)(inputaddr)); inputaddr += 4; /* Wait for CCF flag to be set */ counter = 0; do { ccstatus = AES_GetFlagStatus(AES_FLAG_CCF); counter++; }while((counter != AES_CC_TIMEOUT) && (ccstatus == RESET)); if (ccstatus == RESET) { status = ERROR; } else { /* Clear CCF flag */ AES_ClearFlag(AES_FLAG_CCF); /* Read cipher text */ *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; *(uint32_t*)(outputaddr) = AES_ReadSubData(); outputaddr += 4; } } /* Disable AES before starting new processing */ AES_Cmd(DISABLE); return status; } /** * @} */ /** * @} */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/