In the part of the DRM, this paper especially focuses on the architecture of DRM and introduces it into the whole scheme, including content encryption, user authentication, license distribution and management and the frame of the application.

• 在数字版权管理研究方面,本论文着重研究了WMRM体系,并将其引入到视频多播系统中来,包括内容加密、用户认证、权限的分发和管理以及其应用框架。