Cryptology ePrint Archive: Report 2006/200

Improvement of recently proposed Remote User Authentication Schemes

Guanfei Fang and Genxun huang

Abstract: Abstract. Recently Manik et al. [13] proposed a novel remote user authentication scheme using bilinear pairings. Chou et al. [14] identified a weakness in Manik et al.’s scheme and made an improvement. Thulasi et al. [15] show that both Manik et al.’s and Chou et al.’s schemes are insecure against forgery attack and replay attack. But Thulasi et al. do not propose a improvement. In this paper, we propose an improvement to over come the flaws.

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Publication Info: no

Date: received 8 Jun 2006

Contact author: feifgf at 163 com

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Version: 20060620:165245 (All versions of this report)

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