A short proxy signature scheme: efficient authentication in the ubiquitous world

Authors:
Xinyi Huang;Yi Mu;Willy Susilo;Fangguo Zhang;Xiaofeng Chen
Affiliations:
College of Mathematics and Computer Science, Nanjing Normal University, P.R. China;Centre for Information Security Research, School of Information Technology and Computer Science, University of Wollongong, Australia;Centre for Information Security Research, School of Information Technology and Computer Science, University of Wollongong, Australia;Department of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou, P.R. China;Department of Computer Science, Sun Yat-Sen University, Guangzhou, P.R. China
Venue:
EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
Year:
2005

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Abstract

We present a cryptanalysis on the short proxy signature scheme recently proposed in [11] and propose a novel short proxy signature scheme from bilinear pairings. Compared with the existing proxy signature schemes, the signature length of our scheme is the shortest. Our short proxy signature scheme satisfies all the properties required for proxy signatures. We prove that our scheme is secure in the random oracle model.