具有前向安全性质的基于身份的聚合签名方案  

Identity Based Aggregate Signature Scheme with Forward Security

作　　者：韦性佳 张京花 刘增芳 芦殿军 WEl Xing-jia ,ZHANG Jing-hua, LIU Zeng- fang ,LU Dian-jun(College of Mathematics and Statistics, Qinghai Normal University, Xining 810008, Chin)

机构地区：[1]青海师范大学数学与统计学院,西宁810008

出　　处：《计算机科学》2018年第B06期387-391,共5页Computer Science

基　　金：青海省科技创新能力促进计划资助项目(2015-ZJ-724)资助

摘　　要：利用双线性映射、椭圆曲线离散对数、强RSA假设,提出了一种具有前向安全性的聚合签名方案。该方案可实现私钥生成中心与签名用户的认证,对签名消息具有前向安全性,进一步保障了系统的安全性。在随机预言模型下证明了该方案在CDH问题难解的情况下是安全的。By using the tools of bilinear pairing,discrete logarithm on elliptic curve and strong RSA assumption,this paper proposed a new aggregate signature scheme with forward security.It can realize the authentication between the private key generation center and the signature user,and has the quality of forward security for the signature information,which further guarantees the system＇s security.The scheme was proved secure in the random oracle paradigm with the assumption that the computational Diffie-hellman（CDH）problem is intractable.

关 键 词：聚合签名 前向安全性 计算DIFFIE-HELLMAN问题 双线性对 强RSA假设 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]