An Evidence Theory Based Anonymity Metrics

摘要：

For privacy protection, several anonymous communication systems have been presented in the past a few years, such as Crowds, Onion routing, TOR etc. In order to measure the anonymity these systems provided, an evidence theory based approach is proposed in this paper, which presents Evidence Collection Model (ECM) to collect evidence, i.e. leaked attributes that can be obtained by attackers from users’ actions; presents Anonymity State Model (ASM) to describe the dynamic transition of anonymity states within a given time period. According to these two models, a new method to quantify the anonymity and the unlinkability of actions is introduced. Compared with the traditional Shannon information theory, our new approach is shown to be more general and useful for evaluating the anonymity.

关键词： Anonymity Unlinkability Evidence Theory Digital Identity

作者: Zhen Ling Junzhou Luo Ming Yang

作者单位: School of Computer Science and Engineering,Southeast University,Nanjing,P.R.China

会议类型: 国际会议

会议名称: The First IEEE International Conference on Ubi-Media Coputing and Workshops(第一届泛媒体处理国际会议)

会议地点: 兰州

会议语种:英文

在线出版日期: 2008-07-15（万方平台首次上网日期，不代表论文的发表时间）