Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility
Reexamination Certificate
2002-11-13
2010-06-01
Vu, Kimyen (Department: 2435)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Security kernel or utility
C713S164000, C726S026000
Reexamination Certificate
active
07730303
ABSTRACT:
A method of providing automatically verifiable trust in a content resolution process in which a PDR resolves a content reference identifier (CRID) identifying a content item using a resolution authority record (RAR) to obtain a locator identifying a location where the PDR can obtain the content item. Preferably, the measure comprises computing a digital signature over at least part of the contents of the CRID, the locator and/or the RAR. The method may also comprise encrypting at least a data portion of the CRID, RAR or locator. Digital rights needed to access the content item can be provided with the CRID, RAR or locator.
REFERENCES:
patent: 6826699 (2004-11-01), Sun
patent: 2004/0172340 (2004-09-01), Bishop et al.
patent: 2004/0237100 (2004-11-01), Pinder et al.
patent: 0940960 (1999-09-01), None
Chadwick, Piesing : “David 1.5 Specification—TV Anything and TV Anywehre” TV Anytime, Apr. 1999 (XP002237927, Retrieved from the Internet: URL:http://www.david.org/Download/Spec1—5/Final/tv—any.pdf ′retrieved on Apr. 10, 2003! Paragraph ′03.41!
Ashley Alexis Stephen Richard
Kamperman Franciscus Lucas Antonius Johannes
Tuyls Pim Theo
Koninklijke Philips Electronics , N.V.
Moran Randal D
Vu Kimyen
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