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Cryptanalysis of a New Dynamic ID-based User Authentication Scheme to Resist Smart-Card-Theft Attack |
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PP: 1855-1858 |
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Author(s) |
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Fengtong Wen,
Dianli Guo,
Xuelei Li,
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Abstract |
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| In a recent paper (AMIS, 6(2S), 2012), Lee proposed a dynamic ID-based user authentication scheme based on smart card
which is believed to have many abilities to resist a range of network attacks. In this paper, we analyze the security of Lee’s scheme and
show that the scheme is in fact insecure against insider-assisted attack, even if the adversary doesn’t know the secret information stored
in the smart card. In addition, the adversary can perform off-line guessing attack and impersonation attack if the secret information
stored in the smart card is compromised. |
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