Efficient remote user authentication and key establishment for multi-server environment

Abstract

With the rapid development of communication technologies, resources are distributed over multiple servers in the network. These resources are usually restricted to authorized users. To provide access control and secure communication in the network, remote user authentication and key establishment is found to be most important. A Reversible Cellular Automata based remote user authentication and key establishment scheme using smart card is proposed in this paper. The scheme is simple, less computational and robust against various known attacks.