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並列摘要


Recently, Das, Saxena and Gulati proposed a dynamic Id based remote user authentication scheme that allows the users to choose and change their passwords freely and does not maintain verifier table. But their scheme has few weaknesses and cannot achieve mutual authentication. In 2005, Liao, Lee and Hwang showed that Das et al. scheme is vulnerable to guessing attack and proposed an enhanced scheme which also achieves mutual authentication. In this paper we show that Liao et. al's. scheme cannot withstand impersonation attack, reflection attack and it is completely insecure as a user can successfully log on to a remote system with a random password.

被引用紀錄


Chen, H. F. (2011). 植基於智慧卡之高效率的遠端身份認證研究 [master's thesis, National Taichung University of Science and Technology]. Airiti Library. https://doi.org/10.6826/NUTC.2011.00057

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