IPTV Service Framework Based on Secure Authentication and Lightweight Content Encryption for Screen-Migration in Cloud Computing

Table 6

Computing the delay in interdomain and outer-domain in the three authentication mechanisms.

	Kerberos	EAP-TLS	Previous work	New proposed mechanism
Interdomain	3 msg	3 msg	3 msg	1 msg
Outer-domain	3 msg	4 msg	6 msg	3 msg
Total delay (ms)	20 ms	18.5 ms	15.5 ms	11 ms