Research and implement on general multimedia digital rights management system

To protect the interest of multimedia data owners, dealers and consumers, the author proposes a general architecture of multimedia data and implements a real DRM topology system called sDRM. It can protect the local and on-line play of multimedia data files. It uses XrML as its rights expression language which achieves the standardization of the rights expression. User name and password, USB device, smart card and finger mark are used in the system to identify the user. As a result, the key problem in DRM of multimedia data is resolved. An experiment is implemented to demonstrate the efficiency of our DRM system.EI05792-7994