Design And Implementation Of The Server-side Of Digital Right Management System In NVD Player

NVD is the red high-definition optical disc technology belongs to China's independent intellectual property rights. It is not subject to foreign patent constraints; it has many advantages such as low cost, and has great market demand. The development of NVD industries need to have effective copyright protection technology.The main target of current copyright protection technology used in optical disc are to prevent digital content from illegal copying and dissemination, but most of them have been cracked off. Optical disc manufacturers continue to improve the encryption strength of the content and the complexity of optical disc player.Digital rights management technology is net-based digital copyright protection technology, through a set of technologies, in the provision of digital and network information services, it effectively stop the illegal use of such information, it can effectively protect intellectual property rights of digital products. Digital rights management technology has become an important means to achieve the protection of the legitimate transaction data content, dissemination and use under the network environment.Using digital rights management technology to protect the copyright of NVD high-definition discs is a new method of the copyright protection technology for optical disc. the digital copyright protection system applied to NVD refer to the existing digital copyright protection system's the functional structure, the system model and the principles of technology , According to the actual performance of the hardware platform based on NVD and under the premise of the completion of the functional requirements, simplifying the system architecture.the digital copyright protection system applied to NVD involving the NVD discs, NVD optic disc machine, and the provision of management services to the server, including the use of the three-tier model of clients, servers, databases, and integrated use encryption technology, digital signature technology and digital certificates technology, right expression language, and other technology. The server-side of digital rights management system implements the main part of system management, include file encryption, user management, licensing, and certification.