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

Hung-Min Sun; Bin-Tsan Hsieh

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Conference paper

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

Hung-Min Sun and Bin-Tsan Hsieh

IEEE Annual International Carnahan Conference on Security Technology, Proceedings, pp.474-476

2003

Abstract

Alias

Cryptanalysis

Proxy Signature

Signature

Recently, 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. In this paper, 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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Title: Cryptanalysis of a strong proxy signature scheme with proxy signer privacy protection
Creators - without role: Hung-Min Sun - Department of Computer Science , National Tsing Hua University
Bin-Tsan Hsieh - National Cheng Kung University
Publication Details: IEEE Annual International Carnahan Conference on Security Technology, Proceedings, pp.474-476
Grant note: IEEE Lexington Section;IEEE Aerospace and Electron
Identifiers: 9957777387406774
Academic Unit: Department of Computer Science, College of Electrical Engineering and Computer Science, National Tsing Hua University
Language: English
Resource Type: Conference paper

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

Abstract

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