Describes about the ASymmetric Crypto's Hash related commands. More...

Collaboration diagram for Commands_Hash:

Functions
phStatus_t	phCryptoASym_ComputeHash (void pDataParams, uint16_t wOption, uint8_t bHashAlgo, uint8_t pMessage, uint16_t wMsgLen, uint8_t pHash, uint16_t pHashLen)
	Computes Hash for the given message. More...

Detailed Description

Describes about the ASymmetric Crypto's Hash related commands.

Function Documentation

phStatus_t phCryptoASym_ComputeHash	(	void *	pDataParams,
		uint16_t	wOption,
		uint8_t	bHashAlgo,
		uint8_t *	pMessage,
		uint16_t	wMsgLen,
		uint8_t *	pHash,
		uint16_t *	pHashLen
	)

Computes Hash for the given message.

Note: Start, Update and Finish operation are supported and can be exercised by using wOption parameter.

Return values

PH_ERR_SUCCESS	Operation successful.
PH_ERR_UNSUPPORTED_HASH_ALGO	Hash Algorithm not supported. Refer bHashAlgo parameter description.
PH_ERR_INVALID_PARAMETER	- If Hashing algorithm is No-Hashing and buffering options is not PH_EXCHANGE_DEFAULT. If the buffers are null.
Other	Depending on implementation and underlying component.

Parameters

[in]	pDataParams	[In] Pointer to this layer's parameter structure
[in]	wOption	[In] Buffering options for Hashing the message. These flags can be used for intermediate Hash operation PH_EXCHANGE_DEFAULT : Computes the Hash for the Message and returns the Hash. This performs Start, Update and Finish in one operation. PH_EXCHANGE_BUFFER_FIRST: Computes the Hash and saves for completion. This is equivalent to Start and here the Hash is not provided. PH_EXCHANGE_BUFFER_CONT : Computes the Hash along with the previous hash data and saves for completion. This is equivalent to Update and here the Hash is not provided. PH_EXCHANGE_BUFFER_LAST : Computes the Hash along with the previous hash data. This is equivalent to Finish and here the Hash is provided.
[in]	bHashAlgo	[In] Hashing Algorithm to use. Refer Hash Algorithm.
[in]	pMessage	[In] Input message to be Hashed.
[in]	wMsgLen	[In] Length of bytes available in pMessage buffer.
[out]	pHash	[Out] The Hashed information for the message based on hashing algorithm.
[out]	pHashLen	[Out] Length of bytes available in pHash buffer.