Practical Single Sign-on Mechanism for Distributed Computer Networks
Li Huang, Xinlai Tang, Hao Liu and Da Xiao
More recently, Chang and Lee proposed a secure single sign-on mechanism to allow mobile users to use the unitary token to access service providers. In this paper, we fist demonstrate that, not as claimed, their scheme is not efficient and thus not suitable for mobile devices in distributed computer networks. Then we employ elliptic curve cryptosystems and proxy signature to design a new scheme. Both the security and performance analysis shows that our scheme is better suited for resource constrained devices.
Keywords: User authentication; distributed computer networks; anonymity; mobile devices.