Transcryption of digital content between content protection...

Details Transcryption of digital content between content protection... Transcryption of digital content between content protection...

2008-05-20

2008-05-20

Smithers, Matthew (Department: 2137)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C726S002000, C726S026000, C380S242000, C380S255000

Reexamination Certificate

active

11276496

ABSTRACT:
Technology for protecting a digital content including a first content protection system capable of decrypting the digital content, the digital content including an inclusion list; a linkable library providing access for an application to the functionality of the first content protection system, the application including a second content protection system; and a means for evaluating the second content protection system to determine if the second content protection system is on the inclusion list.

REFERENCES:
patent: 2003/0236978 (2003-12-01), Evans et al.
patent: 994475 (2000-04-01), None
Imad M. Abbadi, Chris J. Mitchell, “Digital Rights Management Using A Mobile Phone”, Aug. 2007, ICEC '07 Proceedings of the ninth international conference on electronic commerce pp. 185-194.

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