Repudiation of Cheating and Non-repudiation of Zhang's Proxy Signature Schemes
Ghodosi, Hossein, and Pieprzyk, Josef (1999) Repudiation of Cheating and Non-repudiation of Zhang's Proxy Signature Schemes. Lecture Notes in Computer Science. 4th Australasian Conference on Information Security and Privacy, ACISP’99 , 7-9 April 1999, Wollongong, Australia , pp. 129-134.
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View at Publisher Website: http://dx.doi.org/10.1007/3-540-48970-3
The paper discusses the correctness of Lee, Hwang and Wang's comments on on Zhang's proxy signature schemes. In particular, it is shown that the cheating attack proposed by Lee, Hwang and Wang can be detected by the owner of the signature scheme. It is argued that considering the context in which proxy signatures are used, the attack is not a security problem. The work is concluded by a discussion about the non-repudiation controversy incorrectly observed by Lee, Hwang and Wang.
|Item Type:||Conference Item (Refereed Research Paper - E1)|
|Keywords:||Cryptography, Digital Signatures, Proxy Signatures, ElGamal signatures.|
|FoR Codes:||08 INFORMATION AND COMPUTING SCIENCES > 0804 Data Format > 080401 Coding and Information Theory @ 100%|
|SEO Codes:||89 INFORMATION AND COMMUNICATION SERVICES > 8903 Information Services > 890399 Information Services not elsewhere classified @ 100%|
|Deposited On:||22 Aug 2012 11:24|
|Last Modified:||03 Sep 2012 09:22|
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