关键词: 匿名通信, 基本框架, 中继节点

Abstract: Anonymity communication is a hot topic in the area of network and communication. The origin of anonymity communication was first outlined, and the framework of anonymity communication in terms of anonymity property, adversary capability and network type were described. Then the research of anonymity communication was investigated, and a brief description of several major anonymity communication systems including Anonymizer, Tor, Mixminion, Crowds and Tarzan was provided. Finally the challenges confronted in the development of anonymity communication were proposed, including the user experience of anonymity communication, credibility evaluation system of relay node and misbehavior of anonymity communication.

Key words: anonymity communication, basic framework, relay node