一类基于身份无可信中心的离线电子现金方案  

AN IDENTITY BASED OFF-LINE E-CASH SCHEME WITHOUT A TRUSTED PARTY

作　　者：朱月珍[1] 

机构地区：[1]兰州城市学院培黎职业技术学院,甘肃兰州730070

出　　处：《计算机应用与软件》2009年第6期108-110,共3页Computer Applications and Software

基　　金：甘肃省自然科学项目(0710RJZA072)

摘　　要：在Liao等的基于身份无可信中心签名的基础上,采用在电子现金中添加用户标记的方法,构造一个无可信第三方的离线电子现金方案,可实现对用户和钱币的跟踪,解决电子现金的匿名性控制问题,能有效地防止重复消费、窃听、篡改和高手段的犯罪。该方案具有计算量小、在线处理效率高的特点,具有广阔的应用前景。Based on Liao＇ s ID-based signature without trusted Private Key Generator, a new off-line E-cash scheme without trusted third party （TTP） is constructed by adopting the method of inserting users mark into E-cash. It can track the user and the currency, resolves the problem of anonymity control in the E-cash, avoids duplicate consumption and effectively prevents from eavesdropping, tampering and perfect crime. The E-cash scheme has the properties of little computation and high on-line transaction efficiency, and has promising applicable prospect.

关 键 词：电子现金 基于身份 无可信中心 WEIL配对 椭圆曲线 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] F830.49[自动化与计算机技术—计算机科学与技术]