Security Enhanced Anonymous Multiserver Authenticated Key Agreement Scheme Using Smart Cards and Biometrics

Table 1

Comparison of security properties.

Security properties	D. Yang and B. Yang scheme [10]	Yoon and Yoo scheme [11]	Chuang and Chen scheme [13]	Our scheme
(S1) Anonymity			◯	◯
(S2) Mutual authentication	◯	◯	◯	◯
(S3) Session key agreement	◯	◯	◯	◯
(S4) Perfect forward secrecy	◯	◯	◯	◯