CryptoHMACVerify (FUN)

FUNCTION CryptoHMACVerify : RTS_IEC_RESULT

Verify a recieved hashed message authentication code (HMAC).

InOut:

Scope	Name	Type	Comment
Return	CryptoHMACVerify	RTS_IEC_RESULT	Function returns ERR_OK if the HMAC is valid.
Input	hAlgo	RTS_IEC_HANDLE	Handle to the algorithm.
	pData	POINTER TO RtsByteString	Data to calculate the HMAC.
	key	RtsCryptoKey	Key to be used for the HMAC calcuation
	pSignature	POINTER TO RtsByteString	Recieved HMAC