Cryptanalysis and Improvement of an Anonymous Authentication Protocol for Wireless Access Networks

Authors:
Debiao He;Yuanyuan Zhang;Jianhua Chen
Affiliations:
State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China and School of Mathematics and Statistics, Wuhan University, Wuhan, C ...;School of Mathematics and Statistics, Wuhan University, Wuhan, China;School of Mathematics and Statistics, Wuhan University, Wuhan, China
Venue:
Wireless Personal Communications: An International Journal
Year:
2014

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Abstract

Authentication protocols with anonymity attracted wide attention since they could protect users' privacy in wireless communications. Recently, Hsieh and Leu proposed an anonymous authentication protocol based on elliptic curve Diffie---Hellman problem for wireless access networks and claimed their protocol could provide anonymity. However, by proposing a concrete attack, we point out that their protocol cannot provide user anonymity. To overcome its weakness, we propose an improved protocol. We also provide an analysis of our proposed protocol to prove its superiority, even though its computational cost is slightly higher.