Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2011-06-07
2011-06-07
Smithers, Matthew B (Department: 2437)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C380S201000
Reexamination Certificate
active
07958375
ABSTRACT:
A recording medium, apparatus for decrypting data and method thereof are disclosed. The present invention includes downloading encrypted data associated with a recording medium to a local storage, decrypting data recorded in the recording medium using a first type key within a key file stored in the recording medium and decrypting the downloaded data using a second type key within one of the key file stored in the recording medium or a key file stored in the local storage. And, the present invention includes downloading the data encrypted with a key associated with a recording medium to a local storage, reading out a decryption key using link information between the data and the key, and decrypting the data using the decryption key. Accordingly, by the present invention, unauthorized copy, redistribution and the like of contents can be prevented. Hence contents can be safely provided and data can be efficiently reproduced, whereby more convenient functions can be provided to a user.
REFERENCES:
patent: 7322513 (2008-01-01), Kuo et al.
patent: 2002/0076204 (2002-06-01), Nakano et al.
patent: 2002/0112172 (2002-08-01), Simmons
patent: 2002/0146122 (2002-10-01), Vestergaard et al.
patent: 2002/0159592 (2002-10-01), Matsushima et al.
patent: 2002/0186842 (2002-12-01), Sabet-Sharghi et al.
patent: 2003/0072453 (2003-04-01), Kelly et al.
patent: 2003/0086568 (2003-05-01), Kato et al.
patent: 2003/0138100 (2003-07-01), Ishizaka et al.
patent: 2003/0142827 (2003-07-01), Ohwada et al.
patent: 2004/0139338 (2004-07-01), Ohmori et al.
patent: 2005/0131998 (2005-06-01), Takashima
patent: 2006/0014521 (2006-01-01), Chen et al.
patent: 2006/0227973 (2006-10-01), Takashima et al.
patent: 2007/0073620 (2007-03-01), Gandolph et al.
patent: 2007/0217305 (2007-09-01), Seo et al.
patent: 2008/0232781 (2008-09-01), Ohizumi et al.
patent: 1552073 (2004-12-01), None
patent: 1710950 (2006-10-01), None
patent: 2002-374244 (2002-12-01), None
patent: 2004-087063 (2004-03-01), None
patent: 2005-033781 (2005-02-01), None
patent: 2298235 (2007-04-01), None
patent: WO 96/11446 (1996-04-01), None
patent: WO/2004/030356 (2004-04-01), None
patent: WO-2004-030356 (2004-08-01), None
patent: 2004/114303 (2004-12-01), None
patent: WO 2005/041185 (2005-05-01), None
patent: WO2005/052941 (2005-06-01), None
patent: WO 2005/074187 (2005-08-01), None
patent: WO2005/091367 (2005-09-01), None
International Search Report issued Jul. 6, 2006 in corresponding International Patent Application No. PCT/KR2006/000031.
Office Action issued Jun. 5, 2009 by the Chinese Patent Office in counterpart Chinese Patent Application No. 200680002373.6 (with English language translation).
Russian Notice of Allowance for corresponding Application No. 2007131440 dated Jun. 2, 2010.
European Search Report dated Dec. 29, 2009 for corresponding Application No. 06700313.7.
Intel Corporation et al., “Advanced Access Control System (AACS) Technical Overview (informative)”, Jul. 21, 2004.
Blu-Ray Disc Founders, “White paper Blu-Ray Disc Format 2.A logical and audio visual application format specifications for BD-RE”, Aug. 2004.
Intel Corporation, “Content Protection for Recordable Media Specification-Network Download Book”, XP002379489, Aug. 5, 2004.
Taylor J Ed, “DVD demystified, Passage”, DVD Demstified (Second Edition) XP002319697, pp. 254-257, Jan. 1, 2001.
Harness & Dickey & Pierce P.L.C.
LG Electronics Inc.
Sholeman Abu
Smithers Matthew B
LandOfFree
Recording medium, apparatus for decrypting data and method... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Recording medium, apparatus for decrypting data and method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording medium, apparatus for decrypting data and method... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2675921