家庭网络与数字版权管理技术

家庭网络是社会数字化、信息化发展的关注焦点，但如何保障家庭网络中数字内容安全，保证价值链中各环节的合法利益，成为制约其发展的重要“瓶颈”。数字版权管理技术从数字内容及其权限的使用、存储、交换、追踪等方面给出了全面的解决方案。数字版权管理具有系统性、可控性等基本特征，家庭网络中数字版权管理技术需要解决内容与权限在使用、存储、转移中存在的一致性问题，需要研发端到端的安全传输、有条件接收、有条件播出、权限描述等关键技术，以适应家庭网中新媒体、新业务的发展和保护知识产权的需求。

Home Networks and Digital Rights Management

Home networks are a focus in the development of social digitization and informatization. The bottleneck for developing the home network is how to safeguard the content security and the legitimate interests of every entity in the value-chain. The Digital Rights Management (DRM) is a general solution to utilization, storage, exchange and tracking of digital contents and their rights. The basic characteristics of DRM are systematicness and controllability. In order to meet the requirements of home networks on development of new media and services and intellectual property protection, it is necessary to solve the consistency problems existing in the utilization, storage, transfer of contents and rights and develop key techniques for secure end-to-end transmission, conditional access, conditional play, rights expression in DRM.