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Mathematical Problems in Engineering
Volume 2014, Article ID 373690, 10 pages
http://dx.doi.org/10.1155/2014/373690
Research Article

Certificateless Proxy Signature from RSA

1School of Mathematics and Computer Science, Guizhou Normal University, Guiyang 550001, China
2School of Mathematical Sciences, Xiamen University, Fujian 361005, China

Received 31 January 2014; Revised 28 May 2014; Accepted 29 May 2014; Published 23 June 2014

Academic Editor: Kwok-Wo Wong

Copyright © 2014 Lunzhi Deng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Although some good results were achieved in speeding up the computation of pairing function in recent years, it is still interesting to design efficient cryptosystems with less bilinear pairing operation. A proxy signature scheme allows a proxy signer to sign messages on behalf of an original signer within a given context. We propose a certificateless proxy signature (CLPS) scheme from RSA and prove its security under the strongest security model where the Type I/II adversary is a super Type I/II adversary.