选定聚合者的聚合签名方案  

Aggregate signature scheme of designated aggregator

作　　者：刘建华[1,2] 赵长啸[1] LIU Jianhua;ZHAO Changxiao(Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance,Civil Aviation University of China,Tianjin 300300,China;Aviation Engineering Institute,Civil Aviation Flight University of China,Guanghan 618307,China)

机构地区：[1]中国民航大学天津市民用航空器适航与维修重点实验室,天津300300 [2]中国民用航空飞行学院航空工程学院,四川广汉618307

出　　处：《现代电子技术》2016年第15期58-61,66,共5页Modern Electronics Technique

基　　金：国家自然科学基金(61272501);中国民航飞行学院项目(J2013-31;Q2014-48);国家重点基础研究发展项目(973计划)(2012CB315905);中国民航大学天津市民用航空器适航与维修重点实验室开放基金

摘　　要：针对如何降低聚合签名的通信开销并同时提高计算效率的问题,提出一个新的聚合者在每次签名前选定的聚合签名方案。系统可以选择任意用户为聚合者发起签名协议,该方案具有无证书的特点,且聚合后的签名长度固定,与签名用户的数量增减无关,能够快速地实现用户组成员的动态变化。证明了方案在随机预言模型下的安全性,并分析了方案的计算效率。In order to reduce the communication overhead of aggregate signature and improve the computation efficiency,anew aggregate signature scheme is proposed,which is designated before each signature of the aggregator. The system can selectthe arbitrary user to initiate the signature protocol for the aggregator. The scheme has the certificateless characteristic. The aggre?gated signature length is constant,and is independent of the quantity of signature users. The scheme can realize the dynamicchanges of the users group members. The security of the scheme was proved under the random oracle model. The computation ef?ficiency of the scheme is analyzed.

关 键 词：选定聚合者 常数长度 无证书签名 随机预言模型 

分 类 号：TN915.08[电子电信—通信与信息系统] TP409.2[电子电信—信息与通信工程]