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A modified remote user authentication scheme using smart cards

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3 Author(s)
Jau-Ji Shen ; Dept. of Inf. Manage., Chaoyang Univ. of Technol., Taichung, Taiwan ; Chih-Wei Lin ; Min-Shiang Hwang

Hwang and Li (see IEEE Trans. Consumer Electron., vol.46, no.1, p.28-30, 2000) proposed a new remote authentication scheme using smart cards. Their scheme is based on the ElGamal's public key cryptosystem. However, Chan and Cheng (see IEEE Trans. Consumer Electron., vol.46, p.992-993, 2000) pointed out that the scheme is vulnerable to the masquerade attack. In this article, we show a different attack on Hwang-Li scheme which is easier and simpler. Furthermore, we present an enhanced scheme for repairing the above attacks.

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:49 ,  Issue: 2 )

Date of Publication:

May 2003

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