EP 1949374 A2 20080730 - METHOD FOR ETCHING AND SECURE DISTRIBUTION OF DIGITAL DATA, ACCESS DEVICE AND WRITER
Title (en)
METHOD FOR ETCHING AND SECURE DISTRIBUTION OF DIGITAL DATA, ACCESS DEVICE AND WRITER
Title (de)
VERFAHREN ZUM ÄTZEN UND SICHEREN VERTEILEN DIGITALER DATEN, ZUGANGSEINRICHTUNG UND SCHREIBVORRICHTUNG
Title (fr)
METHODE DE GRAVURE ET DE DISTRIBUTION SECURISEE DE DONNEES NUMERIQUES, DISPOSITIF D'ACCES ET GRAVEUR
Publication
Application
Priority
- FR 2006002328 W 20061017
- FR 0510566 A 20051017
Abstract (en)
[origin: WO2007045756A2] The invention concerns a method for secure reception and writing of digital data including a step (108) of etching said digital data on a secure disc (30) by a receiver/writer (6, 28) belonging to a specific secure domain comprising a plurality of equipment items and defined by an identifier (IDD), a step of writing (108) on the secure disc (30) of the identifier (IDD) of the writer/receiver domain (6, 28) to define said domain as the only domain wherein the reproduction/copy of the multimedia content is authorized. The invention is characterized in that it includes a prior step of recovering a disc key (DK) of the secure disc (30), and in that the domain identifier (IDD) is encrypted by the disc key (DK) and the digital data are scrambled by title keys, said title keys being encrypted by said disk key. The invention also concerns a method for secure distribution of digital data, an access device and a writer/receiver.
IPC 8 full level
G11B 20/00 (2006.01); G11B 20/10 (2006.01); H04N 7/24 (2006.01)
CPC (source: EP KR US)
G06F 12/14 (2013.01 - KR); G11B 20/00086 (2013.01 - EP US); G11B 20/00188 (2013.01 - EP US); G11B 20/00195 (2013.01 - EP US); G11B 20/0021 (2013.01 - EP US); G11B 20/00449 (2013.01 - EP US); G11B 20/00492 (2013.01 - EP US); G11B 20/0071 (2013.01 - EP US); G11B 20/00731 (2013.01 - EP US); G11B 20/00797 (2013.01 - EP US); G11B 20/00847 (2013.01 - EP US); G11B 20/00855 (2013.01 - EP US); G11B 20/10 (2013.01 - EP KR US); H04N 21/2541 (2013.01 - EP US); H04N 21/6334 (2013.01 - KR); H04N 21/835 (2013.01 - EP US)
Citation (search report)
See references of WO 2007045756A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
FR 2892222 A1 20070420; CN 101292292 A 20081022; CN 101292292 B 20121212; EP 1949374 A2 20080730; JP 2009512085 A 20090319; JP 5122468 B2 20130116; KR 101407139 B1 20140613; KR 20080056217 A 20080620; US 2009070600 A1 20090312; US 8724807 B2 20140513; WO 2007045756 A2 20070426; WO 2007045756 A3 20070621
DOCDB simple family (application)
FR 0510566 A 20051017; CN 200680038733 A 20061017; EP 06830969 A 20061017; FR 2006002328 W 20061017; JP 2008536080 A 20061017; KR 20087009168 A 20061017; US 8327906 A 20061017