Hidden Anonymous Communication Based On P2p Technology Research

Internet has been the most popular platform for individuals to communi-cate and share ideas. With increasing threats against network privacy, anony-mous and covert communication technology is becoming more and more im-portant. In this paper, an unobservable rendezvous negotiation protocol is pro-posed based on P2P architecture, which establishes a covert channel leverag-ing an existing DHT to hide communicating behaviors and utilizes a tagging mechanism to ensure an indirect identification and authentication. We also propose a covert anonymous communication framework based on the existing network infrastructure. Meanwhile, we design and implement a hidden anony-mous communication prototype system based on P2P and UGC, which include three key points:redundancy mechanism, index channel and data channels. Experiments indicate that DHT channel provides300KB/1h upload bandwidth and1.2MB/lh download bandwidth, while UGC channel provides5MB/lh u-pload bandwidth and10MB/lh download bandwidth.Security analysis shows that the protocol can resist various threats.