周才学,张 月,范明钰.基于证书的多代理签名方案[J].计算机科学与探索,2014,8(7):858-867.
ISSN 1673-9418 CODEN JKYTA8
Journal of Frontiers of Computer Science and Technology
1673-9418/2014/08(07)-0858-10
doi: 10.3778/j.issn.1673-9418.1310009
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基于证书的多代理签名方案
*
周才学
1+
,张 月
1
,范明钰
2
1. 九江学院 信息科学与技术学院,江西 九江 332005
2. 电子科技大学 计算机科学与工程学院,成都 611731
Certificate-Based Multi-Proxy Signature Scheme
ZHOU Caixue
1+
, ZHANG Yue
1
, FAN Mingyu
2
1. School of Information Science and Technology, Jiujiang University, Jiujiang, Jiangxi 332005, China
2. School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu
611731, China
+ Corresponding author: E-mail: Charlesjjjx@126.com
ZHOU Caixue, ZHANG Yue, FAN Mingyu. Certificate-based multi-proxy signature scheme. Journal of Fron-
tiers of Computer Science and Technology, 2014, 8(7):858-867.
Abstract: Certificate-based cryptosystem can not only reduce the high cost of public key management, but also
solve the key escrow problem. Multi-proxy signature allows an original signer to delegate his signing rights to a
proxy group, and only the cooperation of all signers in the proxy group can generate a valid proxy signature. This paper
presents a new formal definition and a new security model of certificate-based multi-proxy signature, and proposes
a concrete scheme without using bilinear pairings. Based on the discrete logarithm assumption, this paper proves the
scheme to be unforgeable in the random oracle model. The efficiency analysis shows that the scheme has higher effi-
ciency. At last, this paper gives the application examples.
Key words: certificate-based cryptosystem; multi-proxy signature; bilinear pairings; public key replacement attacks;
random oracle model
摘 要:基于证书的密码体制既能降低公钥管理的高昂费用,又能解决密钥托管问题。多代理签名允许一个
原始签名者把他的签名权委托给一群代理签名人,并且只有所有代理签名人合作才能产生有效的代理签名。
给出了基于证书的多代理签名的形式化定义和安全模型,并提出了一个不使用双线性对的基于证书的多代理
* The Key Program of Jiujiang University under Grant No. 2013ZD02 (九江学院校级重点课题).
Received 2013-10, Accepted 2013-12.
CNKI 网络优先出版:2013-12-24, http://www.cnki.net/kcms/doi/10.3778/j.issn.1673-9418.1310009.html