Cryptography – Key management
Reexamination Certificate
2005-09-19
2009-12-08
Barron, Jr., Gilberto (Department: 2432)
Cryptography
Key management
C380S201000
Reexamination Certificate
active
07630497
ABSTRACT:
A hybrid traitor-tracing enabling system comprises an inner code and a multi-level outer code. The inner code comprises encrypted tables comprising codewords for file segment variations. One level of the multi-level outer code comprises assignments of a cluster of sequence keys to manufacturers or models of media players. Another level comprises assignments to the media players of sequence keys within the cluster. The system enables tracing of only a manufacturer or model, or a manufacturer, model, and a media player. When tracing a manufacturer or model, the system enables detection with relatively few recovered files. With additional recovered files, the media player used for piracy can be discovered. Furthermore, the present system enables detection of collusion between manufacturers or models and collusion between individual media players.
REFERENCES:
patent: 4491725 (1985-01-01), Pritchard
patent: 5117358 (1992-05-01), Winkler
patent: 5832447 (1998-11-01), Rieker et al.
patent: 6285774 (2001-09-01), Schumann et al.
patent: 6556679 (2003-04-01), Kato et al.
patent: 6587826 (2003-07-01), Laneman et al.
patent: 2001/0052073 (2001-12-01), Kern et al.
patent: 2002/0076205 (2002-06-01), Asada et al.
patent: 2002/0133701 (2002-09-01), Lotspiech et al.
patent: 2002/0141582 (2002-10-01), Kocher et al.
patent: 2002/0159593 (2002-10-01), Sako et al.
patent: 2003/0169885 (2003-09-01), Rinaldi
patent: 2003/0187534 (2003-10-01), Suzuki et al.
patent: 2003/0212642 (2003-11-01), Weller et al.
patent: 2004/0034787 (2004-02-01), Kitani
patent: 2004/0111611 (2004-06-01), Jin et al.
patent: 2004/0128259 (2004-07-01), Blakeley et al.
patent: 2004/0133794 (2004-07-01), Kocher et al.
patent: 2004/0153941 (2004-08-01), Muratani
patent: 2005/0141704 (2005-06-01), Van Der Veen
“Traitor Tracing for Perecorded and Recordable Media”, Hongxia Jin, Jeffery Lotspiech, and Stefan Nusser, DRM'04 Oct. 25, 2004. ACM. pp. 83-90.
Hongxia Jin et al., “Traitor Tracing for Prerecorded and Recordable Media,” ACM, DRM'04, Oct. 25, 2004, pp. 83-90.
Fernandez-Munoz et al., “Fingerprinting Schemes for the Protection of Multimedia Distribution Rights,” Upgrade, Security in e-Commerce, v.III, n.6, pp. 36-40, Dec. 2002, http://www.cepis-upgrade.org/issues/2002/6/upgrade-vIII-6.pdf.
Silverberg et al., “Applications of List Decoding to Tracing Traitors,” a version of this paper appeared in ASIACRYPT 2001, 2001, http://www.math.unl.edu/˜jwalker/papers/taipp.pdf.
Lin et al., “Advances in Digital Video Content Protection,” Proc. of the IEEE, v.93, n.1, pp. 171-183, Jan. 2005, http://shay.ecn.purdue.edu/˜linet/Papers/IEEE-Proc-2005.PDF.
Kocher et al., “Self-Protecting Digital Content,” Technical Report from the CRI Content Security Research Initiative, Cryptography Research, Inc. (CRI), 2002-2003, http://www.cryptography.com/resources/whitepapers/Self ProtectingContent.pdf.
Jin Hongxia
Lotspiech Jeffrey Bruce
Barron Jr. Gilberto
International Business Machines - Corporation
Kanaan Simon
Kassatly Samuel A.
Shimokaji & Associates P.C.
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