基于双线性的有特权集门限代理签名方案  

Threshold proxy signature scheme with privileged subset based on bilinearity

作　　者：汤鹏志[1] 郭红丽[1] 何涛[1] 

机构地区：[1]华东交通大学基础科学学院,江西南昌330013

出　　处：《合肥工业大学学报（自然科学版）》2014年第9期1063-1066,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(61240025;11061014);江西省教育厅科研资助项目(GJJ13339;GJJ2690);华东交通大学校立科研基金资助项目(11JC04)

摘　　要：文章针对实际应用中代理者权限等级不同的情况,结合特权集的思想,提出有特权集的门限代理签名方案,当特权代理者和普通代理者分别达到相应门限值才能共同产生有效的门限代理签名,同时特权代理者和普通代理者之间可以互相监督,防止任意一方滥用代理权限;方案可以抵抗合谋攻击,具有特权集和门限签名的特性,满足不可伪造性和不可否认性;证明了方案的安全性和正确性;分析表明方案的效率和通信量是合理的。Considering that different agents have different permissions in practical application , and based on the thoughts of privilege subset ,a threshold proxy signature scheme with privileged subset is proposed .Only w hen the privileged agents and general agents reach the appropriate threshold value respectively ,can the effective threshold proxy signature be produced .T he privileged agents and gen-eral agents can also supervise with each other to prevent the abuses of proxy rights of either party . Besides ,the scheme can resist collusion attack and is unforgeable and undeniable with its properties of privilege subset and threshold signature .The correctness and security of the scheme is verified ,and the efficiency and traffic of the scheme is reasonable .

关 键 词：代理签名 门限代理签名 双线性对 特权集 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]