高效的可撤销群签名方案  

Efficient group signature scheme with revocation

作　　者：仲红[1] 黄丛林[1] 许艳[1] 崔杰[1] 

机构地区：[1]安徽大学计算机科学与技术学院,安徽合肥230601

出　　处：《通信学报》2016年第10期18-24,共7页Journal on Communications

基　　金：国家自然科学基金资助项目(No.61572001);安徽省自然科学基金资助项目(No.201508085QF132)~~

摘　　要：将子集覆盖框架与Camenisch-Stadler方案相结合,实现群成员的加入和撤销,且无需改变其他成员私钥,实现高效的签名验证效率。同时,在成员注册时增加一个知识签名,实现防联合攻击。分析表明,方案满足匿名性和抗联合攻击、伪造攻击和权威陷害攻击,并具有非关联性。效率方面,仅略增加群成员证书长度,达到常数级的签名和验证开销。A group signature scheme which combines the subset cover framework with Camenisch-Stadler scheme was proposed. This scheme allowed any group members＇ entrance and revocation without changing other members＇ secret key. Meanwhile, the scheme added a knowledge signature while registering, that realized coalition resistance. It is shown that the scheme not only has the characteristics of anonymity and no-relation, but also can resist conspiracy attacks, forgery attack and authority trap attack. As for efficiency, the scheme just slightly increases the length of group members＇ certifi- cates, with the signature and verification complexity remaining at constant level.

关 键 词：群签名 子集覆盖框架 联合攻击 非关联性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]