| Cryptanalysis of Two Pseudo-attacks from the Same Mathematic Mistake |
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| 作者姓名： | 刘杰 施建俊 李建华 |
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| 作者单位： | Dept. of Electronic Eng. Shanghai Jiaotong Univ.，Dept. of Electronic Eng. Shanghai Jiaotong Univ.，Dept. of Electronic Eng. Shanghai Jiaotong Univ.，Shanghai 200240 China，Shanghai 200240 China，Shanghai 200240 China |
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| 摘 要： | Yang and Shieh proposed a timestamp-based password authentication scheme. Fan and Shen gave different improvements on it. Wang claimed that Fan's improvement is insecure and gave his attack. Yang did the similar things on Shen's scheme. This paper gave further cryptanalysis on Wang's and Yang's attacks and pointed out that both of their attacks are infeasible. Wang and Yang made the same mathematic mistake and their attacks are pseudo.
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| 关 键 词： | 加密技术 解密技术 密码确认 密码分析 |
Cryptanalysis of Two Pseudo-attacks from the Same Mathematic Mistake |
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| LIU Jie,SHI Jian-jun,LI Jian-hua.Cryptanalysis of Two Pseudo-attacks from the Same Mathematic Mistake[J].Journal of Shanghai Jiaotong university,2007,12(3):394-396. |
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| Authors: | LIU Jie SHI Jian-jun LI Jian-hua |
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| Abstract: | Yang and Shieh proposed a timestamp-based password authentication scheme. Fan and Shen gave different improvements on it. Wang claimed that Fan's improvement is insecure and gave his attack. Yang did the similar things on Shen's scheme. This paper gave further cryptanalysis on Wang's and Yang's attacks and pointed out that both of their attacks are infeasible. Wang and Yang made the same mathematic mistake and their attacks are pseudo. |
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| Keywords: | password authentication cryptanalysis number theory |
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