Usage Control Model for Digital Rights Management in Digital Home Networks

The free distribution, unauthorized usage, and illicit sharing of copyrighted digital contents have become a common phenomenon with the rapid triple-play progress. The digital home network (DHN) is confronted with the open issue of digital rights management, and there is a lack of a formalized usage control model as well as some killer applications. The paper proposes a role-based cross-domain usage control model called the RCDUCM for DHN, which embraces two primary features of both role-based access control and security domain constraint management. RCDUCM is visually modeled by Unified Modeling Language to shorten the gap between the theoretical model and digital rights management applications.