A Remote Authentication Scheme Preserving User Anonymity

Authors:
Hung-Yu Chien;Che-Hao Chen
Affiliations:
Chao Yang University of Technology;Chao Yang University of Technology
Venue:
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 2
Year:
2005

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Abstract

Many smart card-based remote authentication schemes have been proposed, due to its convenience and secure computation of the smart card. However, these schemes didnýt protect the usersý identities while authenticating the users, even though user anonymity is an important issue in many e-commerce applications. In 2004, Das et al. proposed a remote authentication scheme to authenticate users while preserving the usersý anonymity. Their scheme adopted dynamic identification to achieve this function. This article points out Das et al.ýs scheme fails to protect the userýs anonymity, and propose a new scheme to conquer the weakness.