Analysis and Improvement on an Authentication Protocol for IoT-Enabled Devices in Distributed Cloud Computing Environment

Table 2

Comparison of security.

	F1	F2	F3	F4	F5	F6	F7
Xue et al. [11]	Yes	No	Yes	Yes	Yes	Yes	Yes
Amin et al. [13]	Yes	Yes	Yes	Yes	Yes	No	No
Improved protocol	Yes	Yes	Yes	Yes	Yes	Yes	Yes

F1: user anonymity; F2: resist password guessing attack; F3: resist replay attack; F4: resist insider attack; F5: resist session key discloser attack; F6: resist impersonation attack; F7: CS knows the real identities of users and cloud servers.