A secure improvement on the user-friendly remote authentication scheme with no time concurrency mech

Authors:
Ya-Fen Chang;Chin-Chen Chang;Yu-Wei Su
Affiliations:
National Taichung Institute of Technology, Taichung, Taiwan;Feng Chia University, Taichung, Taiwan;National Chung Cheng University, Chiayi, Taiwan
Venue:
AINA '06 Proceedings of the 20th International Conference on Advanced Information Networking and Applications - Volume 02
Year:
2006

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Abstract

Sun proposed an efficient remote authentication scheme using smart cards which ensures low communication and computation cost, but the user cannot choose his/her password at will. Thus, Wu and Chieu presented an improvement. However, Yang and Wang pointed out that Wu and Chieu's scheme is vulnerable to the password guessing and forgery attacks. To preserve the advantage of Sun's scheme and Wu and Chieu's scheme and to amend the security weakness, we propose an improvement in this paper. Moreover, our scheme needs no time concurrency mechanism and ensures mutual authentication.