SYSTEM AND METHOD FOR PROVIDING AUTHORIZED ACCESS
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专利名称：SYSTEM AND METHOD FOR PROVIDING AUTHORIZED ACCESS TO DIGITAL
CONTENT
发明人：MEDVINSKY, ALEXANDER
申请号：EP05851894
申请日：20051117
公开号：EP1815682A4
公开日：
20091216
专利内容由知识产权出版社提供
摘要：Described herein are embodiments that provide an approach to cryptographic key management for a digital rights management (DRM) architecture that includes multiple levels of key management for minimizing bandwidth usage while maximizing security for the DRM architecture. In one embodiment(Fig 1), there is provided a data structure for cryptographic key management that includes a public/private key pair and three additional layers of symmetric keys for authorizing access to a plurality of contents(Figs 2,4).
申请人：GENERAL INSTRUMENT CORPORATION
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