Robust and Efficient Authentication Scheme for Session Initiation Protocol

Table 2

Registration and authentication phase of our scheme.

Registration	(1) Generate		(3) Compute
	= .		= ,
			= .
			.
Authentication	(1) Generate		(2) Compute
	= ,		= ,
	= ,		= ,
	= ,		= ,
	= ,		,
	= .		Generate
			= ,
	(3) = ,		= ,
	= ,		= ,
	,		= .
			(4) =
	= .
		= =