The design philosophy of the DARPA internet protocols
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
Rethinking the design of the Internet: the end-to-end arguments vs. the brave new world
ACM Transactions on Internet Technology (TOIT)
Digital Rights Management: Business and Technology
Digital Rights Management: Business and Technology
Tussle in cyberspace: defining tomorrow's internet
Proceedings of the 2002 conference on Applications, technologies, architectures, and protocols for computer communications
A Logic for Reasoning about Digital Rights
CSFW '02 Proceedings of the 15th IEEE workshop on Computer Security Foundations
CSFW '04 Proceedings of the 17th IEEE workshop on Computer Security Foundations
Proceedings of the 4th ACM workshop on Digital rights management
Import/export in digital rights management
Proceedings of the 4th ACM workshop on Digital rights management
Fairer usage contracts for DRM
Proceedings of the 5th ACM workshop on Digital rights management
DRM interoperability analysis from the perspective of a layered framework
Proceedings of the 5th ACM workshop on Digital rights management
The problem with rights expression languages
Proceedings of the ACM workshop on Digital rights management
A policy language for distributed usage control
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Efficient license validation in MPML DRM architecture
Proceedings of the nineth ACM workshop on Digital rights management
Semantic Usage Policies for Web Services
ISWC '09 Proceedings of the 8th International Semantic Web Conference
An interoperable usage management framework
Proceedings of the tenth annual ACM workshop on Digital rights management
Ontologies for intellectual property rights protection
Expert Systems with Applications: An International Journal
Aggregate licenses validation for digital rights violation detection
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) - Special Issue on Multimedia Security
Privacy rights management in multiparty multilevel DRM system
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
A framework for establishing trust in the Cloud
Computers and Electrical Engineering
A legally-admissible copyrights ownership identification protocol for digital works
Proceedings of the 4th International Conference on Internet Multimedia Computing and Service
An approach to the formal analysis of license interoperability
Computers and Electrical Engineering
Computation time efficient approach for licenses validation in DRM systems
Multimedia Tools and Applications
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Digital rights management (DRM) is increasingly becoming a necessity for content management and distribution in highly networked environments such as the Internet. However, very few DRM models have been able to achieve commercial success and acceptance among users. This paper analyzes the problems with current DRM environments and proposes an open layered framework for development of DRM systems, where different technologies can interoperate within the framework. Furthermore, interoperability is studied in terms of the proposed layered framework, and problems posed by the current rights expression languages (RELs) are identified. We conclude that a refactoring of current RELs based on a set of design principles is necessary to achieve a reasonable level of DRM interoperability. We emphasize the need for middleware services for DRM, along with their responsibilities and places of operation within the proposed framework. Finally, a specific prototype architecture is introduced that makes use of existing infrastructures in order to implement a DRM environment consistent with the design principles described in this paper.