A token-based authorized file-sharing protocol for BitTorrent-like P2P systems

In recent years, more and more people use Internet and with the improvements of communication technology, information-sharing trends has surged over Internet. Bit-Torrent is a well-known P2P application used for distributing large amounts of data and exchange digital content with high efficiently and scalability. Unfortunately, many users do not get authorization but transmit files through Bit-Torrent illegally. The piracy problems become a very serious issue because the digital contents can be copied and redistributed easily through P2P network without license owners' authorized. For this reason, digital rights management (DRM) is considered as a general preventive measure to avoid copyright infringement. However, a conventional DRM system implementation on distributed P2P network would be quite difficult. Therefore, we propose an efficient DRM model on P2P network that to prevent violation of copyrights for digital content owners and to provide more attractive motivation for users.