The Implementation Architecture of Content Protection in P2P Network

P2P content sharing is often blamed for copyright infringement, making the establishment of content security technologies an urgent need. A PCP (P2P-based content protection) system is proposed in this paper. The system is based on a trust model that focuses on content security, rights management and access control in P2P network. Encryption, digital watermarking, and packaging technologies are adopted to protect the confidentiality and integrity of contents, and support copyrights verifying and piracy tracing. The structure of rights management integrates the distributed and centralized modes, which not only reduces the burdens of networks and rights server, but also provides controllability. For the access control, the authentication is divided into three aspects of certificate, identity, and credit. The PCP system is implemented to prove that it can provide a more robust intellectual property protection solution for P2P content delivery.