Robust and Efficient Authentication Scheme for Session Initiation Protocol

Table 3

Comparison of security attributes.

	Ours	Arshad and Ikram [13]	Yoon et al.[14]	Xie [15]	Farash and Attari [16]	Zhang et al.[17]	Tu et al.[18]	Irshad et al.[19]	Arshad and Nikooghadam [20]
	Yes	No	No	No	No	—	No	No	No
	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
	Yes	Yes	Yes	Yes	Yes	Yes	—	Yes	Yes
	Yes	Yes	Yes	Yes	—	—	—	Yes	Yes
	Yes	No	No	No	No	No	Yes	Yes	Yes
	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
	Yes	—	—	—	—	—	—	—	—
	Yes	No	No	No	Yes	Yes	Yes	Yes	Yes

: providing anonymity and untraceable; : providing mutual authentication; : providing perfect forward secrecy; : known session key security; : resist insider attack; : resist replay attack; : resist key-compromise impersonation attack; : resist offline password guessing attack.