A Fair Off-Line E-Cash System with Group Signature  

作　　者：SUYun-Xue ZHUYue-fei 

机构地区：[1]NetEngineeringDepartmentofPLAInformationEngineeringUniversity,Zhengzhou450002,Henan,China

出　　处：《Wuhan University Journal of Natural Sciences》2004年第5期745-748,共4页武汉大学学报（自然科学英文版）

基　　金：theNationalNaturalScienceFundationofChina(90204015)

摘　　要：This paper describes the research results and development of fair off-line e-cash systems so far, and points out that in these systems, the bank can compute the double-spender’s account secret key, thus the bank can impersonate the double-spender to withdraw from the double-spender’s account. This article utilizes anonymity control and group signature to address this shortcoming. Key words electronic cash - anonymity control - group signature CLC number TP 309 Foundation item: Supported by the National Natural Science Fundation of China (90204015)Biography: SU Yun-xue (1975-), male, Ph. D. research direction: the software and theory of computer and information security.This paper describes the research results and development of fair off-line e-cash systems so far, and points out that in these systems, the bank can compute the double-spender’s account secret key, thus the bank can impersonate the double-spender to withdraw from the double-spender’s account. This article utilizes anonymity control and group signature to address this shortcoming. Key words electronic cash - anonymity control - group signature CLC number TP 309 Foundation item: Supported by the National Natural Science Fundation of China (90204015)Biography: SU Yun-xue (1975-), male, Ph. D. research direction: the software and theory of computer and information security.

关 键 词：electronic cash anonymity control group signature 

分 类 号：F713.36[经济管理—产业经济] TP309[自动化与计算机技术—计算机系统结构]