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.