A flexible DRM system considering ubiquitous environment
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part IV
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The traditional contents distribution architecture was fixed pattern, as the distribution subjects – Contents Provider (CP), Contents Distributor (CD), and Contents Consumer (CC) – create, distribute, and consume the digital contents, while in Convergence Home-network Environment (CHE) it would be necessary for each subject to have the distribution system that can be flexibly changed. In this paper, we designed and implemented the Interactive Multimedia Service- Intellectual Property Management and Protection (IMS-IPMPS) by supplementing and expanding MPEG-21 DID, IPMP, REL, and the mechanism of OMA-DRM. In the proposed system, it is possible for CP to complete the appropriate authentication in CHE, generate the contents, and then register the packaged contents in safety for its distribution. In addition, it is the IMS-IPMP system where one can simultaneously consume the contents that the users from the different home network environments have generated and registered.