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一个高效的基于证书数字签名方案
引用本文:王雯娟,黄振杰,郝艳华.一个高效的基于证书数字签名方案[J].计算机工程与应用,2011,47(6):89-92.
作者姓名:王雯娟  黄振杰  郝艳华
作者单位:漳州师范学院计算机科学与工程系,福建漳州,363000
基金项目:福建省自然科学基金,福建省青年科技人才创新项目
摘    要:基于证书公钥密码学是Gentry在Eurocrypt 2003上首次提出的,它克服了传统公钥系统中存在的证书管理问题和基于身份公钥系统中存在的密钥托管问题。基于计算性Diffie-Hellman假设,构造一个Shnorr型的高效的基于证书数字签名方案,并在随机预言机模型(Random Oracle Model)下证明其安全性。该方案在签名算法中不需要任何双线性对运算,在签名验证算法中只需要一个双线性对运算,在效率上优于已有的基于证书数字签名方案。

关 键 词:密码学  数字签名  基于证书数字签名  可证明安全
修稿时间: 

Efficient certificate-based signature scheme
WANG Wenjuan,HUANG Zhenjie,HAO Yanhua.Efficient certificate-based signature scheme[J].Computer Engineering and Applications,2011,47(6):89-92.
Authors:WANG Wenjuan  HUANG Zhenjie  HAO Yanhua
Institution:Department of Computer Science and Engineering,Zhangzhou Teacher’s College,Zhangzhou,Fujian 363000,China
Abstract:The certificate-based public key cryptography is proposed by Gentry in Eurocrypt 2003,which can overcome the certificate management problem in traditional public key system,as well as the private key escrow problem in identity-based public key system.Based on computational Diffie-Hellman assumption,a Shnorr-type certificate-based signature scheme is constructed,which is provable under the Random Oracle Model.This scheme doesn't need any computation of the bilinear pairing in signing algorithm, and just only needs one computation of the bilinear pairing in verification algorithm.So it is more efficient than the available certificate-based signature schemes.
Keywords:cryptography  signature  certificate-based signature  provably secure
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