高效可撤销成员的不可链接的群盲签名方案  

New Efficient Group Blind Signature Scheme with Membership Revocation and Unlinkability

作　　者：刘文远[1] 宋春梅[1] 

机构地区：[1]燕山大学信息科学与工程学院,秦皇岛066004

出　　处：《计算机科学》2008年第11期60-62,206,共4页Computer Science

基　　金：国家科技部高新技术计划项目(2005EJ000017);国家电子信息发展基金;河北省信息产业发展计划项目(2005035025);河北省自然科学基金(F2005000368)资助

摘　　要：在ACJT方案的基础上实现了一成员可撤销的群盲签名方案。借鉴陈的成员撤销思想,对签名过程进行了改进,将原方案的两个零知识证明减少为一个,减少了模指数运算,缩短了签名长度,同时将C.Popescu的群盲签名思想加入到签名过程中,使改进的成员可撤销的群签名增加了盲性,改进后同时解决了C.Popescu提出的群盲签名方案可链接性的缺陷。实现的成员可撤销的不可链接的群盲签名方案,可应用于多银行电子现金系统中,用来实现成员可撤销的多银行电子现金系统,使电子现金系统更接近现实金融系统。A new efficient group blind signature scheme with membership revocation on the basis of ACJT group scheme was provided. Drawing on the thought of the membership revocation of Chen , in the process of signature, it only uses a random number to decrease two zero-knowledge proofs of the original program to one, and decreases the mode index operation, thus shortens the length of signatures, while the group blind signature thinking proposed by C. Popeseu is joined in the signature process, increases blind to the improved group signature with the membership revocation, and the program has also effectively addressed the flaw of linkability of the group blind signature programs proposed by C. Popescu. The new efficient group blind signature scheme with membership revocation and unlinkability can be applied to multi-bank electronic cash system, used to realize the multi-bank electron cash system which can abolish the group members,enables the electronic cash system to conform to the application of the real financial system.

关 键 词：成员可撤销 ACJT方案 效率 群盲签名 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] TN918.1[自动化与计算机技术—计算机科学与技术]