Achieving media portability through local content translation and end-to-end rights management
Proceedings of the 5th ACM workshop on Digital rights management
Design rules for interoperable domains: controlling content dilution and content sharing
Proceedings of the 8th ACM workshop on Digital rights management
Secure Domain Architecture for Interoperable Content Distribution
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
A policy language for distributed usage control
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
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Digital Rights Management (DRM) is concerned with the controlled distribution and usage of digital works in order to prevent unauthorized usage of digital content. A significant component of a DRM system is a well-defined language for expressing the rights which a user/device has been granted. Such a language is known as a Rights Expression Lanugage (REL).Various technical communities have developed alternative rights expression languages. It is expected that in the marketplace different rights expression languages will be used as determined by the business needs and constraints of content and service providers. From such market fragmentation arises the need to move content between different DRM schemes, and so there is a need to translate rights expressions between RELs.In this paper, we examine the challenges that must be addressed when developing a rights expression translation and then present several approaches to rights expression translation.