On zhang’s nonrepudiable proxy signature schemes

Narn Yih Lee, Tzonelih Hwang, Chih Hung Wang

研究成果: Conference contribution

61 引文 斯高帕斯(Scopus)

摘要

In 1997, Zhang proposed two new nonrepudiable proxy signature schemes to delegate signing capability. Both schemes claimed to have a property of knowing that a proxy signature is generated by either the original signer or a proxy signer. However, this paper will show that Zhang's second scheme fails to possess this property. Moreover, we shall show that the proxy signer can cheat to get the original signer's signature, if Zhang's scheme is based on some variants of E1Gamal-type signature schemes. We modify Zhang's nonrepudiable proxy signature scheme to avoid the above attacks. The modified scheme also investigates a new feature for the original signer to limit the delegation time to a certain period.

原文English
主出版物標題Information Security and Privacy - 3rd Australasian Conference, ACISP 1998, Proceedings
編輯Colin Boyd, Ed Dawson
發行者Springer Verlag
頁面415-422
頁數8
ISBN(列印)3540647325, 9783540647324
DOIs
出版狀態Published - 1998 一月 1
事件3rd Australasian Conference on Information Security and Privacy, ACISP 1998 - Brisbane, Australia
持續時間: 1998 七月 131998 七月 15

出版系列

名字Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
1438
ISSN(列印)0302-9743
ISSN(電子)1611-3349

Other

Other3rd Australasian Conference on Information Security and Privacy, ACISP 1998
國家/地區Australia
城市Brisbane
期間98-07-1398-07-15

All Science Journal Classification (ASJC) codes

  • 理論電腦科學
  • 電腦科學(全部)

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