Study on Privacy Protection and Anonymous Communication in Peer-to-Peer Networks

While encrypting communication can hide the content of the transaction, the attacker still can invade the users´ privacy by flow analysis. Anonymous communication technology is an important method to protect users´ privacy. By hiding the participators´ identities, or the linkability between sender and receiver, anonymous communication system can guard users´ privacy against invasion. The study of anonymous communication techniques was surveyed. In crowds-extended destination routing (C-EDR), all users join a crowd group. Base on these situation, a calable protocol called C-EDR was given, which can be applied to peer-to-peer networks.