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An Efficient Dynamic ID-based User Authentication Scheme using Smart Cards without Verifier Tables |
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PP: 485-490 |
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Author(s) |
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Tian-Fu Lee,
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Abstract |
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| Smart-card based user authentication schemes provide that legal users conveniently and securely access remote services with
smart cards through unsecure networks. Lee recently showed that the dynamic ID-based remote user authentication scheme proposed by
Das et al. cannot resist password guessing attacks and impersonation attacks. In order to solve these weaknesses, Lee also presented an
improved authentication scheme and claimed that the proposed scheme can resist modification, password guessing, impersonation and
smart-card-theft attacks. However, this investigation indicates that the authentication scheme of Lee cannot resist the above attacks and
violates users’ untracibility. Additionally, this investigation also develops an efficient and secure dynamic ID-based user authentication
scheme based on the quadratic residues. The proposed scheme not only avoids the weakness in the previous schemes, but also does not
require verifier tables in the authentication server and still retains low computational cost in clients. |
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