Rights management using recording definition information (RDI)

Details Rights management using recording definition information (RDI) Rights management using recording definition information (RDI)

2006-05-23

2010-10-26

Arani, Taghi T (Department: 2438)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C726S002000, C726S003000, C726S004000, C726S007000, C726S010000, C726S016000, C726S017000, C726S019000, C726S021000, C726S026000, C726S028000, C726S029000, C726S030000, C726S031000, C726S032000, C726S033000, C713S182000, C713S185000, C709S246000

Reexamination Certificate

active

07823210

ABSTRACT:
A rights management system is described in which, subsequent to recording a media resource, client-side equipment receives and stores recording definition information (RDI). The RDI provides information that can be used to recover the keys used to decrypt the media resource. When a client device subsequently wishes to consume the media resource, it can forward the RDI to an operations center. At the operations center, a transcription module validates the client device's rights and converts the RDI into client targeted information (CTI) by recovering the keys used to decrypt the media resource. The client device receives the CTI from the transcription module and uses it to consume the media resource. The CTI has an expiration date, after which it can no longer be used.

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