Cryptology ePrint Archive: Report 2008/055

cryptanalysis and Improvement of a Recently Proposed Remote User Authentication Scheme Using Smart Cards

S.Sharmila Deva Selvi and S.Sree Vivek

Abstract: Recently Debasis et al[1] proposed an improvement to prevent offline attack in Fang et alís[2] scheme, where [2] was an improvement of Das et alís[3] scheme. However the improved scheme is insecure against side channel attack. In this paper we propose an enhancement for [1]. The enhanced scheme is secure against substitution, impersonation, spoofing, replay, side-channel and password guessing attacks.

Category / Keywords: cryptographic protocols / Cryptanalysis, Authentication, Smart cards, Side-channel atack

Date: received 1 Feb 2008, withdrawn 7 Feb 2008

Contact author: ssreevivek at gmail com

Available format(s): (-- withdrawn --)

Version: 20080207:102654 (All versions of this report)

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