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Cryptanalysis and Improvement of a Dynamic ID Based Remote User Authentication Scheme Using Smart Cards ⋆

By Chengbo Xu, Zhongtian Jia, Fengtong Wen and Yan Ma

Abstract

Recently, Lee, Lai and Li proposed a dynamic identity based remote user authentication scheme using smart card to remedy the weaknesses of Lee-Lin-Chang’s scheme. However, we find that Lee-Lai-Li’s scheme is still insecure and vulnerable to offline dictionary attack. Besides, the scheme suffers from low efficiency in wrong password detection process and password change phase. To eliminate these weaknesses, we propose an improved scheme. Through comparative analysis, we illustrate that our proposed scheme is more secure and simultaneously keeps low cost

Topics: Authentication, Dynamic Identity, Multi-server, Smart Card, Key Agreement
Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.353.4097
Provided by: CiteSeerX
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