245 lines
8.7 KiB
C
245 lines
8.7 KiB
C
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/**
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******************************************************************************
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* @file stm32f2xx_hash.h
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* @author MCD Application Team
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* @version V1.0.0
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* @date 18-April-2011
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* @brief This file contains all the functions prototypes for the HASH
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* firmware library.
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******************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*
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* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __STM32F2xx_HASH_H
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#define __STM32F2xx_HASH_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f2xx.h"
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/** @addtogroup STM32F2xx_StdPeriph_Driver
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* @{
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*/
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/** @addtogroup HASH
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* @{
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*/
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/* Exported types ------------------------------------------------------------*/
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/**
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* @brief HASH Init structure definition
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*/
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typedef struct
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{
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uint32_t HASH_AlgoSelection; /*!< SHA-1 or MD5. This parameter can be a value
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of @ref HASH_Algo_Selection */
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uint32_t HASH_AlgoMode; /*!< HASH or HMAC. This parameter can be a value
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of @ref HASH_processor_Algorithm_Mode */
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uint32_t HASH_DataType; /*!< 32-bit data, 16-bit data, 8-bit data or
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bit-string. This parameter can be a value of
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@ref HASH_Data_Type */
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uint32_t HASH_HMACKeyType; /*!< HMAC Short key or HMAC Long Key. This parameter
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can be a value of @ref HASH_HMAC_Long_key_only_for_HMAC_mode */
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}HASH_InitTypeDef;
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/**
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* @brief HASH message digest result structure definition
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*/
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typedef struct
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{
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uint32_t Data[5]; /*!< Message digest result : 5x 32bit words for SHA1 or
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4x 32bit words for MD5 */
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} HASH_MsgDigest;
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/**
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* @brief HASH context swapping structure definition
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*/
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typedef struct
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{
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uint32_t HASH_IMR;
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uint32_t HASH_STR;
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uint32_t HASH_CR;
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uint32_t HASH_CSR[51];
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}HASH_Context;
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup HASH_Exported_Constants
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* @{
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*/
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/** @defgroup HASH_Algo_Selection
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* @{
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*/
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#define HASH_AlgoSelection_SHA1 ((uint16_t)0x0000) /*!< HASH function is SHA1 */
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#define HASH_AlgoSelection_MD5 ((uint16_t)0x0080) /*!< HASH function is MD5 */
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#define IS_HASH_ALGOSELECTION(ALGOSELECTION) (((ALGOSELECTION) == HASH_AlgoSelection_SHA1) || \
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((ALGOSELECTION) == HASH_AlgoSelection_MD5))
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/**
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* @}
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*/
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/** @defgroup HASH_processor_Algorithm_Mode
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* @{
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*/
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#define HASH_AlgoMode_HASH ((uint16_t)0x0000) /*!< Algorithm is HASH */
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#define HASH_AlgoMode_HMAC ((uint16_t)0x0040) /*!< Algorithm is HMAC */
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#define IS_HASH_ALGOMODE(ALGOMODE) (((ALGOMODE) == HASH_AlgoMode_HASH) || \
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((ALGOMODE) == HASH_AlgoMode_HMAC))
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/**
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* @}
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*/
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/** @defgroup HASH_Data_Type
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* @{
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*/
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#define HASH_DataType_32b ((uint16_t)0x0000)
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#define HASH_DataType_16b ((uint16_t)0x0010)
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#define HASH_DataType_8b ((uint16_t)0x0020)
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#define HASH_DataType_1b ((uint16_t)0x0030)
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#define IS_HASH_DATATYPE(DATATYPE) (((DATATYPE) == HASH_DataType_32b)|| \
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((DATATYPE) == HASH_DataType_16b)|| \
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((DATATYPE) == HASH_DataType_8b)|| \
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((DATATYPE) == HASH_DataType_1b))
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/**
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* @}
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*/
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/** @defgroup HASH_HMAC_Long_key_only_for_HMAC_mode
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* @{
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*/
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#define HASH_HMACKeyType_ShortKey ((uint32_t)0x00000000) /*!< HMAC Key is <= 64 bytes */
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#define HASH_HMACKeyType_LongKey ((uint32_t)0x00010000) /*!< HMAC Key is > 64 bytes */
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#define IS_HASH_HMAC_KEYTYPE(KEYTYPE) (((KEYTYPE) == HASH_HMACKeyType_ShortKey) || \
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((KEYTYPE) == HASH_HMACKeyType_LongKey))
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/**
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* @}
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*/
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/** @defgroup Number_of_valid_bits_in_last_word_of_the_message
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* @{
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*/
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#define IS_HASH_VALIDBITSNUMBER(VALIDBITS) ((VALIDBITS) <= 0x1F)
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/**
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* @}
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*/
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/** @defgroup HASH_interrupts_definition
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* @{
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*/
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#define HASH_IT_DINI ((uint8_t)0x01) /*!< A new block can be entered into the input buffer (DIN)*/
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#define HASH_IT_DCI ((uint8_t)0x02) /*!< Digest calculation complete */
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#define IS_HASH_IT(IT) ((((IT) & (uint8_t)0xFC) == 0x00) && ((IT) != 0x00))
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#define IS_HASH_GET_IT(IT) (((IT) == HASH_IT_DINI) || ((IT) == HASH_IT_DCI))
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/**
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* @}
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*/
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/** @defgroup HASH_flags_definition
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* @{
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*/
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#define HASH_FLAG_DINIS ((uint16_t)0x0001) /*!< 16 locations are free in the DIN : A new block can be entered into the input buffer.*/
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#define HASH_FLAG_DCIS ((uint16_t)0x0002) /*!< Digest calculation complete */
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#define HASH_FLAG_DMAS ((uint16_t)0x0004) /*!< DMA interface is enabled (DMAE=1) or a transfer is ongoing */
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#define HASH_FLAG_BUSY ((uint16_t)0x0008) /*!< The hash core is Busy : processing a block of data */
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#define HASH_FLAG_DINNE ((uint16_t)0x1000) /*!< DIN not empty : The input buffer contains at least one word of data */
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#define IS_HASH_GET_FLAG(FLAG) (((FLAG) == HASH_FLAG_DINIS) || \
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((FLAG) == HASH_FLAG_DCIS) || \
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((FLAG) == HASH_FLAG_DMAS) || \
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((FLAG) == HASH_FLAG_BUSY) || \
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((FLAG) == HASH_FLAG_DINNE))
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#define IS_HASH_CLEAR_FLAG(FLAG)(((FLAG) == HASH_FLAG_DINIS) || \
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((FLAG) == HASH_FLAG_DCIS))
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/**
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* @}
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*/
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/**
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* @}
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*/
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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/* Function used to set the HASH configuration to the default reset state ****/
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void HASH_DeInit(void);
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/* HASH Configuration function ************************************************/
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void HASH_Init(HASH_InitTypeDef* HASH_InitStruct);
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void HASH_StructInit(HASH_InitTypeDef* HASH_InitStruct);
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void HASH_Reset(void);
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/* HASH Message Digest generation functions ***********************************/
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void HASH_DataIn(uint32_t Data);
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uint8_t HASH_GetInFIFOWordsNbr(void);
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void HASH_SetLastWordValidBitsNbr(uint16_t ValidNumber);
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void HASH_StartDigest(void);
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void HASH_GetDigest(HASH_MsgDigest* HASH_MessageDigest);
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/* HASH Context swapping functions ********************************************/
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void HASH_SaveContext(HASH_Context* HASH_ContextSave);
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void HASH_RestoreContext(HASH_Context* HASH_ContextRestore);
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/* HASH's DMA interface function **********************************************/
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void HASH_DMACmd(FunctionalState NewState);
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/* HASH Interrupts and flags management functions *****************************/
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void HASH_ITConfig(uint8_t HASH_IT, FunctionalState NewState);
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FlagStatus HASH_GetFlagStatus(uint16_t HASH_FLAG);
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void HASH_ClearFlag(uint16_t HASH_FLAG);
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ITStatus HASH_GetITStatus(uint8_t HASH_IT);
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void HASH_ClearITPendingBit(uint8_t HASH_IT);
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/* High Level SHA1 functions **************************************************/
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ErrorStatus HASH_SHA1(uint8_t *Input, uint32_t Ilen, uint8_t Output[20]);
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ErrorStatus HMAC_SHA1(uint8_t *Key, uint32_t Keylen,
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uint8_t *Input, uint32_t Ilen,
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uint8_t Output[20]);
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/* High Level MD5 functions ***************************************************/
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ErrorStatus HASH_MD5(uint8_t *Input, uint32_t Ilen, uint8_t Output[16]);
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ErrorStatus HMAC_MD5(uint8_t *Key, uint32_t Keylen,
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uint8_t *Input, uint32_t Ilen,
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uint8_t Output[16]);
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#ifdef __cplusplus
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}
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#endif
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#endif /*__STM32F2xx_HASH_H */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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