用限制性代理盲签名构造多银行电子现金系统  

E-Cash System for Multiple Banks Based on Restrictive Proxy Blind Signature

作　　者：鲁荣波[1] 何大可[2] 王常吉[3] 

机构地区：[1]吉首大学数学与计算机科学学院,湖南吉首416000 [2]西南交通大学信息安全与国家计算网格实验室,四川成都610031 [3]中山大学计算机科学系,广东广州510275

出　　处：《西南交通大学学报》2007年第5期595-599,共5页Journal of Southwest Jiaotong University

基　　金：国家自然科学基金资助项目(60503005);湖南省自然科学基金资助项目(03JJY6017)

摘　　要：为克服基于群签名思想的多银行电子现金的不足,并提高效率,把盲签名的限制性假设与代理盲签名结合,提出了限制性代理盲签名的概念.根据此概念可构造多个银行参与发行的、公正的电子现金系统.在正常情况下,合法用户的匿名性得到保护,在特殊情况(如法律强制要求)下,发币银行在中央银行的帮助下,可以撤销用户的匿名性.To overcome the shortcomings of a efficiency, a concept called restrictive proxy multi-bank system based on group signature and improve blind signature was proposed, in which the restrictive assumption in blind signature was added to proxy blind signature. A fair off-line e-cash system for multiple banks can be implemented based on the restrictive proxy blind signature. The user＇s anonymity is protected under normal conditions, and it can be revoked by the issuing bank under the supercision of the central bank if anything abnormal happens （such as requirement by law）.

关 键 词：多银行电子现金 代理签名 代理盲签名 限制性 匿名性 

分 类 号：TN918[电子电信—通信与信息系统]