基于证书的代理聚合签名方案的分析与改进  

Analysis and improvement of a certificate-based proxy aggregate signature scheme

作　　者：陈群山 李莉 CHEN Qunshan;LI Li(School of Computer Science,Minnan Normal University,Zhangzhou,Fujian 363000,China)

机构地区：[1]闽南师范大学计算机学院,福建漳州363000

出　　处：《闽南师范大学学报（自然科学版）》2024年第4期87-93,共7页Journal of Minnan Normal University：Natural Science

基　　金：福建省中青年教师教育科研项目(JAT200293,JAT220822)。

摘　　要：在基于证书的签名方案中,只有同时具备证书和私钥的签名者才能生成有效签名.对最近提出的一个基于证书的代理聚合签名方案进行了安全性分析,给出了恶意的证书管理中心伪造委托授权和代理签名的攻击方法,并基于椭圆曲线上的离散对数问题,构造了一个改进的基于证书的代理聚合签名方案,最后分析了改进后方案的安全性和计算效率.In a certificate-based signature scheme,only the signers who possess both a certificate and a private key can generate a valid signature.The security analysis of a certificate-based proxy aggregate signature scheme proposed recently is presented,demonstrating that a malicious certificate authority can arbitrarily forge delegation and proxy signature.Based on the discrete logarithm problem on the elliptic curve,an improved certificate-based proxy aggregate signature scheme is constructed.Finally,the security and computation efficiency of the improved scheme are analyzed.

关 键 词：基于证书签名 聚合签名 代理签名 安全性分析 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]