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MSRTPAuthentication Class Reference

class MSRTPAuthentication

Public Member Functions
	~MSRTPAuthentication ()
HBufC8 *	AuthenticateL ( TUint , const TDesC8 &, const TDesC8 &, const TDesC8 &)

Constructor & Destructor Documentation

~MSRTPAuthentication()

~MSRTPAuthentication

(

)

[inline, virtual]

Member Functions Documentation

AuthenticateL(TUint, const TDesC8 &, const TDesC8 &, const TDesC8 &)

HBufC8 *	AuthenticateL	(	TUint	aBitLength,
			const TDesC8 &	aKey,
			const TDesC8 &	aAuthPortion,
			const TDesC8 &	aRoc
		)	[pure virtual]

This function is called by SRTP for authentication/integrity protection to create authentication tag regardless of the algorithm, the default algorith is HMAC-SHA1. Produces authentication tag based on input key and data M. result IS truncated to n_tag leftmost bits

Parameters

TUint aBitLength	authentication tag length, 32 or 80 bits
const TDesC8 & aKey	authentication key (n_a)
const TDesC8 & aAuthPortion	data to be integrity protected
const TDesC8 & aRoc	packet ROC Returns HBufC8* authentication tag (untruncated)