stm32f4xx_hash.h

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/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_HASH_H
#define __STM32F4xx_HASH_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

/* Exported types ------------------------------------------------------------*/

typedef struct
{
  uint32_t HASH_AlgoSelection; 
  uint32_t HASH_AlgoMode;      
  uint32_t HASH_DataType;      
  uint32_t HASH_HMACKeyType;   
}HASH_InitTypeDef;

typedef struct
{
  uint32_t Data[5];      
} HASH_MsgDigest; 

typedef struct
{
  uint32_t HASH_IMR; 
  uint32_t HASH_STR;      
  uint32_t HASH_CR;     
  uint32_t HASH_CSR[51];       
}HASH_Context;

/* Exported constants --------------------------------------------------------*/

#define HASH_AlgoSelection_SHA1    ((uint16_t)0x0000) 
#define HASH_AlgoSelection_MD5     ((uint16_t)0x0080) 
#define IS_HASH_ALGOSELECTION(ALGOSELECTION) (((ALGOSELECTION) == HASH_AlgoSelection_SHA1) || \
                                              ((ALGOSELECTION) == HASH_AlgoSelection_MD5))

#define HASH_AlgoMode_HASH         ((uint16_t)0x0000) 
#define HASH_AlgoMode_HMAC         ((uint16_t)0x0040) 
#define IS_HASH_ALGOMODE(ALGOMODE) (((ALGOMODE) == HASH_AlgoMode_HASH) || \
                                    ((ALGOMODE) == HASH_AlgoMode_HMAC))

#define HASH_DataType_32b          ((uint16_t)0x0000)
#define HASH_DataType_16b          ((uint16_t)0x0010)
#define HASH_DataType_8b           ((uint16_t)0x0020)
#define HASH_DataType_1b           ((uint16_t)0x0030)

#define IS_HASH_DATATYPE(DATATYPE) (((DATATYPE) == HASH_DataType_32b)|| \
                                    ((DATATYPE) == HASH_DataType_16b)|| \
                                    ((DATATYPE) == HASH_DataType_8b)|| \
                                    ((DATATYPE) == HASH_DataType_1b))

#define HASH_HMACKeyType_ShortKey      ((uint32_t)0x00000000) 
#define HASH_HMACKeyType_LongKey       ((uint32_t)0x00010000) 
#define IS_HASH_HMAC_KEYTYPE(KEYTYPE) (((KEYTYPE) == HASH_HMACKeyType_ShortKey) || \
                                  ((KEYTYPE) == HASH_HMACKeyType_LongKey))

#define IS_HASH_VALIDBITSNUMBER(VALIDBITS) ((VALIDBITS) <= 0x1F)

#define HASH_IT_DINI               ((uint8_t)0x01)  
#define HASH_IT_DCI                ((uint8_t)0x02)  
#define IS_HASH_IT(IT) ((((IT) & (uint8_t)0xFC) == 0x00) && ((IT) != 0x00))
#define IS_HASH_GET_IT(IT) (((IT) == HASH_IT_DINI) || ((IT) == HASH_IT_DCI))
                   
#define HASH_FLAG_DINIS            ((uint16_t)0x0001)  
#define HASH_FLAG_DCIS             ((uint16_t)0x0002)  
#define HASH_FLAG_DMAS             ((uint16_t)0x0004)  
#define HASH_FLAG_BUSY             ((uint16_t)0x0008)  
#define HASH_FLAG_DINNE            ((uint16_t)0x1000)  
#define IS_HASH_GET_FLAG(FLAG) (((FLAG) == HASH_FLAG_DINIS) || \
                                ((FLAG) == HASH_FLAG_DCIS)  || \
                                ((FLAG) == HASH_FLAG_DMAS)  || \
                                ((FLAG) == HASH_FLAG_BUSY)  || \
                                ((FLAG) == HASH_FLAG_DINNE)) 

#define IS_HASH_CLEAR_FLAG(FLAG)(((FLAG) == HASH_FLAG_DINIS) || \
                                 ((FLAG) == HASH_FLAG_DCIS))                                 

/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/ 
  
/*  Function used to set the HASH configuration to the default reset state ****/
void HASH_DeInit(void);

/* HASH Configuration function ************************************************/
void HASH_Init(HASH_InitTypeDef* HASH_InitStruct);
void HASH_StructInit(HASH_InitTypeDef* HASH_InitStruct);
void HASH_Reset(void);

/* HASH Message Digest generation functions ***********************************/
void HASH_DataIn(uint32_t Data);
uint8_t HASH_GetInFIFOWordsNbr(void);
void HASH_SetLastWordValidBitsNbr(uint16_t ValidNumber);
void HASH_StartDigest(void);
void HASH_GetDigest(HASH_MsgDigest* HASH_MessageDigest);

/* HASH Context swapping functions ********************************************/
void HASH_SaveContext(HASH_Context* HASH_ContextSave);
void HASH_RestoreContext(HASH_Context* HASH_ContextRestore);

/* HASH's DMA interface function **********************************************/
void HASH_DMACmd(FunctionalState NewState);

/* HASH Interrupts and flags management functions *****************************/
void HASH_ITConfig(uint8_t HASH_IT, FunctionalState NewState);
FlagStatus HASH_GetFlagStatus(uint16_t HASH_FLAG);
void HASH_ClearFlag(uint16_t HASH_FLAG);
ITStatus HASH_GetITStatus(uint8_t HASH_IT);
void HASH_ClearITPendingBit(uint8_t HASH_IT);

/* High Level SHA1 functions **************************************************/
ErrorStatus HASH_SHA1(uint8_t *Input, uint32_t Ilen, uint8_t Output[20]);
ErrorStatus HMAC_SHA1(uint8_t *Key, uint32_t Keylen,
                      uint8_t *Input, uint32_t Ilen,
                      uint8_t Output[20]);

/* High Level MD5 functions ***************************************************/
ErrorStatus HASH_MD5(uint8_t *Input, uint32_t Ilen, uint8_t Output[16]);
ErrorStatus HMAC_MD5(uint8_t *Key, uint32_t Keylen,
                     uint8_t *Input, uint32_t Ilen,
                     uint8_t Output[16]);

#ifdef __cplusplus
}
#endif

#endif /*__STM32F4xx_HASH_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/