Li Jiping

An Improved Biometric-Based User Authentication Scheme for C/S System

The authors first review the recently proposed Dass biometric-based remote user authentication scheme, and then show that Dass scheme is still insecure against some attacks and has some problems in password change phase. In order to overcome the design flaws in Dass scheme, an improvement of the scheme is further proposed. Cryptanalysis shows that our scheme is more efficient and secure against most of attacks; moreover, our scheme can provide strong mutual authentication by using verifying biometric, password as well as random nonces generated by the user and server.

An noval biometric-based remote user authentication scheme for C/S system

The authors first review the recently proposed Dass biometric-based remote user authentication scheme, and then show that Dass scheme still has some design flaws. In order to withstand the flaws in his scheme, an improvement of his scheme is further proposed. Cryptanalysis shows that our scheme is more efficient and can provide strong authentication by using verifying biometric, password as well as random nonces generated by the user and server.