Information security – Prevention of unauthorized use of data including prevention... – Access control
Reexamination Certificate
2004-11-19
2009-12-01
Zand, Kambiz (Department: 2434)
Information security
Prevention of unauthorized use of data including prevention...
Access control
Reexamination Certificate
active
07627903
ABSTRACT:
The present invention relates to a method and a system for performing digital rights management. The idea of the invention is that a master right associated with a content is stored at a first authorized device (211). An authorized device is a device which can be considered trusted and performs actions with contents according to the associated rights. These devices enforce rights that are bound to contents, and perform the security tasks of the DRM system employed. A subright is derived from the master right, which subright controls what type of access a second authorized device (261) is given to the associated content. Finally, the subright is distributed to the second authorized device, given that the second device complies with predetermined distribution criteria associated with the master right. The device distributing the subright authenticates the device which is to receive the subright, ensuring that the second device can be trusted.
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Fontijn Wilhelmus Franciscus Johannes
He Darwin
Kamperman Franciscus Lucas Antonius Johannes
Li Feng
Lokhoff Gerardus Cornelis Petrus
Hailu Teshome
Koninklijke Philips Electronics , N.V.
Zand Kambiz
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