An improved lu-cao's remote user authentication scheme using smart card

Authors:
Eun-Jun Yoon;Kee-Young Yoo
Affiliations:
Department of Computer Engineering, Kyungpook National University, Daegu, South Korea;Department of Computer Engineering, Kyungpook National University, Daegu, South Korea
Venue:
EuroPKI 2006 Proceedings of the Third European conference on Public Key Infrastructure: theory and Practice
Year:
2006

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Abstract

In 2005, Lu-Cao proposed an improvement on Hwang-Li’s remote user authentication scheme using a smart card that could withstand an impersonation attack, but also it required fewer computational costs. However, the current paper demonstrates that Lu-Cao’s scheme has some drawbacks. We present an improved authentication scheme in order to isolate such problems.