期刊名称：Journal of Wireless Mobile Networks, Ubiquitous Computing, and Dependable Applications
印刷版ISSN：2093-5374
电子版ISSN：2093-5382
出版年度：2012
卷号：3
期号：1-2
页码：55-71
出版社：Innovative Information Science & Technology Research Group
摘要：When we build electronic cash systems, the main focus of the design is usually on preventing cus- tomers' malicious actions. However, since authorities such as banks and certificate authorities may have important secret data of customers, the insiders in the potentially untrusted authorities can be- come threats to electronic cash systems. Miyazaki and Sakurai [2] first systematically analyzed se- curity of o.ine anonymous electronic cash systems by considering the insider threats from untrusted authorities. They investigated the security of the existing electronic cash systems and categorized the systems into four types. In this paper, we reconsider the security of o.ine anonymous electronic cash systems including more recent systems based on the classification of Miyazaki and Sakurai and investigate the possible e.ective countermeasures against malicious insiders
