P2P video streaming method with Copy protection based on SDN technology

In recent years, video streaming services based on the client server (C/S) model have become common. When distributed through these services, video files need to be watermarked with a unique ID to identify clients, so as to deter illegal video capturing. However, the download bandwidth at servers limit the number of clients that can view video files simultaneously. With peer-to-peer (P2P) communication, the bandwidth problem can be resolved, but new problems arise. The first is the problem of assigning unique IDs to shared video files, the second is interruption problem of video viewing when the uploadside clients change. and the last is privacy problem of viewing history. In this paper, a novel method, Copy Protecting P2P video streaming (CPPP), is proposed. With this method, more than 10 million unique watermarks can be produced without requiring embedding and re-encoding. By using CPPP, copyright management, reliability and anonymity become feasible in P2P communication. Copy protecting P2P video streaming services, which has not yet been achieved, becomes possible.