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http://dx.doi.org/10.3745/KIPSTC.2004.11C.6.739

Member/Group License Mechanism for Secure and Flexible Sharing of Protected Contents in DRM Systems  

Chang Hai Jin (상명대학교 컴퓨터소프트웨어)
Publication Information
The KIPS Transactions:PartC / v.11C, no.6, 2004 , pp. 739-746 More about this Journal
Abstract
License mechanisms are the key elements in almost all DRM(digital rights management) systems. The license mechanisms are designed for the clear identification and enforcement of contents, principals, and usage rules in DRM systems. But current license mechanisms are lacking in the flexibility for the secure and efficient sharing of the contents among the members of a group such as a family or a part of an enterprise. This paper suggests a new license mechanism for efficient and secure sharing of contents in DRM systems among the members of a group. We named it member/group license mechanism. The mechanism extends the current license mechanisms by introducing new concepts such as group licenses, member licenses, and derivation relationships between licenses.
Keywords
DRM; Rights Management; License; Content Sharing; Identifier; Rights Language; MPEG-21;
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