一个保护代理人身份的多级代理签名方案  

A Multiple Grade Proxy Signature Scheme for Protecting Agents

作　　者：任燕[1,2] 

机构地区：[1]运城学院应用数学系,山西运城044000 [2]陕西师范大学数学与信息科学学院,西安710062

出　　处：《太原科技大学学报》2009年第4期309-311,共3页Journal of Taiyuan University of Science and Technology

摘　　要：基于RSA签名体制,提出了一个新的可以保护代理人身份的多级代理签名方案。新方案采用影子身份产生中心给每个代理人产生一个影子身份,并用影子身份为消息签名,可确保保护代理人的身份不被泄露,并保证当某个代理人滥用职权时,权威机构可以要求影子身份产生中心根据其影子身份追溯到他的真实身份。同时该方案也满足不可否认性,可区分性,不可伪造性等。A new multiple grade proxy signature scheme to protect agents＇identity is proposed based on RSA. In this scheme, the producing center of shadow identity gives every agent a shadow identity in order to sign for messages, which ensures that the agent identity can not be divulged, and the authority can ask the identity of the shadow under the shadow center to trace back to the identity of his true identity when an agent abuses his power. At the same time, the new scheme also has the properties of non-repudiation, not being denied and not being faked up.

关 键 词：代理签名 多级代理签名 代理人身份 保护代理人 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]