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Digital Rights Management (DRM) allows controlling the access, the use and the diffusion of digital contents produced by right holders. A rights expression language (REL) is necessary. In order to guarantee these rights, the MPEG-21 REL was proposed which is a standardized language used to express the licenses. In this paper, we propose a new MPEG-21 REL model with a formal description and license...
The Digital Rights Management (DRM) is a collection of technologies which protect the copyright holder's revenue by protecting their digital works, based on a secure architecture and respect of law, against any illegal use. We studied in this paper, different DRM architectures. It has been noted that they are restricted to audio and video contents and the corresponding licenses, which define their...
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