Security

An Improved Timestamp-Based Password Remote User Authentication Scheme

Date Added: Apr 2011
Format: PDF

In 2003, Shen et al proposed a timestamp-based password authentication scheme in which remote server does not need to store the passwords or verification table for users authentication. Unfortunately Wang and Li, E.J.Yoon, Lieu et al., analyzed independently the Shen Lin Scheme and were found to be vulnerable to some deadly attacks. In continuation to it, this paper analyzes few attacks and finally proposes an improved Timestamp-based password remote user authentication scheme so that it can withstand the existing forged attacks.