Authors: Yun Tao
Addresses: Economics and Management School, Wuhan University, Wuhan, 430072, China
Abstract: In the present e-commerce and e-government era, user authentication schemes have become more and more important, through which the user and the server could authenticate each other and generate a session key to encrypt the message. The extended chaotic map is very suitable for the cryptography since there are subtle and close relationships between the properties of traditional cryptosystems and chaotic systems. Recently, many extended chaotic maps-based authentication schemes have been proposed for different applications. However, most of them are designed for a single server environment and result in users needing to register many times when they want to access different application servers. Besides, the only two extended chaotic maps-based authentication schemes for multi-server environment suffer from security vulnerability. In this paper, we proposed a new user authentication scheme for multi-server environments using extended chaotic maps. We also give a proof that the security of the proposed scheme could withstand various attacks and satisfy other requirements in multi-server environments.
Keywords: chaotic maps; mutual authentication; smart cards; multi-server environment; user authentication; cryptography; electronic security.
International Journal of Electronic Security and Digital Forensics, 2016 Vol.8 No.3, pp.250 - 261
Received: 31 Oct 2015
Accepted: 02 Feb 2016
Published online: 30 Jun 2016 *