Study and Implementation of a Secure Digital Rights Management System with Selective and Classifiable Subscription Services

With the progress of wireless network techniques and the spread of all kinds of wireless communication devices, they make the physical content transform to digital content, such as the videos, musics, books, and video games. On the contrary, since those are easy to be duplicated and shared with others, it will violate the intellectual property rights and ruin the growth of whole digital content industries. Digital right management (DRM) system provides the digital content owner to protect and manage their resources from unauthorized access. This project will discuss that traditional DRM systems cannot achieve some practical considerations including open DRM infrastructure, digital content classification, user grouping, dynamic and selective subscription, and security issues. Furthremore, this project will consider theses issues to design a open DRM infrastructure, a broadcasting encryption scheme with continuous classification subscription, a broadcasting encryption scheme with selective and continous classification subscription, a broadcasting encryption scheme with selective and discrete classification subscription, and a DRM system with selective and discrete classification subscription. The results will provide user oriented service of digital conten, and a various and flexible business model. The proposed DRM system satisfies the following characteristics: (1) dynamic subscription; (2) scalability of users; (3) scalability of digital content providers; (4) selective subscription; (5) digital content classification; (6) dynamic timeliness subscription; (7) user grouping; (8) ownership; (9) traitor tracing and revoking; (10) lower storage and key management costs; and (11) lower communications costs. In addition,this project will also implement a DRM system for multimedia to realize the proposed system.

Project ID:PB9709-1916
External Project ID:NSC97-2221-E182-032