Initialization and Configuration functions

Initialization and Configuration functions. More...

Functions
void	HASH_DeInit (void)
	Deinitializes the HASH peripheral registers to their default reset values. More...
void	HASH_Init (HASH_InitTypeDef *HASH_InitStruct)
	Initializes the HASH peripheral according to the specified parameters in the HASH_InitStruct structure. More...
void	HASH_StructInit (HASH_InitTypeDef *HASH_InitStruct)
	Fills each HASH_InitStruct member with its default value. More...
void	HASH_Reset (void)
	Resets the HASH processor core, so that the HASH will be ready to compute the message digest of a new message. More...

Detailed Description

Initialization and Configuration functions.

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                      Initialization and Configuration functions
 ===============================================================================  
  This section provides functions allowing to 
   - Initialize the HASH peripheral
   - Configure the HASH Processor 
      - MD5/SHA1, 
      - HASH/HMAC, 
      - datatype 
      - HMAC Key (if mode = HMAC)
   - Reset the HASH Processor 

Function Documentation

void HASH_DeInit

(

void

)

Deinitializes the HASH peripheral registers to their default reset values.

Parameters

None

Return values

None

void HASH_Init

(

HASH_InitTypeDef *

HASH_InitStruct

)

Initializes the HASH peripheral according to the specified parameters in the HASH_InitStruct structure.

Note

the hash processor is reset when calling this function so that the HASH will be ready to compute the message digest of a new message. There is no need to call HASH_Reset() function.

Parameters

HASH_InitStruct,:

pointer to a HASH_InitTypeDef structure that contains the configuration information for the HASH peripheral.

Note

The field HASH_HMACKeyType in HASH_InitTypeDef must be filled only if the algorithm mode is HMAC.

Return values

None

void HASH_Reset

(

void

)

Resets the HASH processor core, so that the HASH will be ready to compute the message digest of a new message.

Note

Calling this function will clear the HASH_SR_DCIS (Digest calculation completion interrupt status) bit corresponding to HASH_IT_DCI interrupt and HASH_FLAG_DCIS flag.

Parameters

None

Return values

None

void HASH_StructInit

(

HASH_InitTypeDef *

HASH_InitStruct

)

Fills each HASH_InitStruct member with its default value.

Parameters

HASH_InitStruct

: pointer to a HASH_InitTypeDef structure which will be initialized.

Note

The default values set are : Processor mode is HASH, Algorithm selected is SHA1, Data type selected is 32b and HMAC Key Type is short key.

Return values

None