A PROVABLY SECURE PROXY SIGNATURE SCHEME FROM BILINEAR PAIRINGS  

作　　者：Wang Aiqin Li Jiguo Wang Zhijian 

机构地区：[1]College of Computer ＆ Information Engineering, Hohai University, Nanjing 210098, China

出　　处：《Journal of Electronics(China)》2010年第3期298-304,共7页电子科学学刊（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No. 60842002, 60673070);The National High-tech Research and Development Plan of China (No. 2007AA01- Z409);The Fundamental Research Funds for the Central Universities Grant No. B1020211;China Postdoctoral Science Foundation Funded Project;The "Six Talent Peaks Program" of Jiangsu Province of China and Pro-gram for New Century Excellent Talents in Hohai Uni-versity

摘　　要：A proxy signature allows an entity, called original signer, to delegate its signing power to another entity, called proxy signer, to sign messages on its behalf. Proxy signatures have many practical applications and are very important cryptographic protocol. In this paper, we propose an efficient proxy signature scheme from bilinear pairings. We prove it secure in the random oracle model and analyze computation cost of our scheme. Our scheme satisfies all the properties required for proxy signatures.A proxy signature allows an entity, called original signer, to delegate its signing power to another entity, called proxy signer, to sign messages on its behalf. Proxy signatures have many practical applications and are very important cryptographic protocol. In this paper, we propose an efficient proxy signature scheme from bilinear pairings. We prove it secure in the random oracle model and analyze computation cost of our scheme. Our scheme satisfies all the properties required for proxy signatures.

关 键 词：Proxy signature Bilinear pairings Provably security 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]