Information security – Prevention of unauthorized use of data including prevention... – Access control
Reexamination Certificate
2004-02-13
2009-06-09
Hoffman, Brandon S (Department: 2436)
Information security
Prevention of unauthorized use of data including prevention...
Access control
C713S193000
Reexamination Certificate
active
07546641
ABSTRACT:
The present invention provides for an interface between two seemingly incompatible and different content protection systems. Accordingly, protected content may be transferred between the respective security kernels of a conditional access (CA) and digital rights management (DRM) systems, while maintaining security of the content and any associated protection information. The transfer and consumption of protected content and the associated content protection information may be achieved by temporarily or permanently binding the respective security kernels of the CA and DRM systems, transcribing content protection information, and potentially transcribing the content.
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Pritchett Thaddeus C.
Robert Arnaud
Hoffman Brandon S
Microsoft Corporation
Workman Nydegger
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