Cryptology ePrint Archive: Report 2010/036

An Enhanced Remote User Authentication Scheme

Keerti Srivastava and Amit K Awasthi and R.C.Mittal

Abstract: In 2003, Shen et al [4] proposed a timestamp-based password authentication scheme in which remote server does not need to store the passwords or verification table for users authentication. Unfortunately Wang and Li[6], E.J.Yoon [8],Lieu et al.[3], analyzed independently the Shen Lin Scheme [4] and was found to be vulnerable to some deadly attacks. In continuation to it, this paper analyzes few attacks and finally proposes an improved Timestamp- based password remote user authentication scheme so that it can withstand the existing forged attacks.

Category / Keywords: cryptographic protocols / Authentication, personate attack, smart card, security im-

Date: received 23 Jan 2010, withdrawn 22 Apr 2011

Contact author: keerti psit at gmail com

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Version: 20110422:153322 (All versions of this report)

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