具有代理签名者隐私保护的强代理签名方案的密码分析

IEEE 37th Annual 2003 International Carnahan Conference onSecurity Technology, 2003. Proceedings. Pub Date : 2003-10-14 DOI:10.1109/CCST.2003.1297606

Hung-Min Sun, Bin-Tsan Hsieh

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引用次数: 6

摘要

Shum和Wei提出了对Lee等人的强代理签名的增强，使代理签名者的身份隐藏在别名后面。我们证明了沈和魏的增强对原始签名者的伪造是不安全的。也就是说，他们的方案不具备较强的不可伪造性安全要求。

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Cryptanalysis of a strong proxy signature scheme with proxy signer privacy protection

Shum and Wei proposed an enhancement to the Lee et al.'s strong proxy signature such that the proxy signer's identity is hidden behind an alias. We show that Shum and Wei's enhancement is insecure against the original signer's forgery. In other words, their scheme does not possess the strong unforgeability security requirement.

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IEEE 37th Annual 2003 International Carnahan Conference onSecurity Technology, 2003. Proceedings.

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