EP 1875378 A4 20141210 - METHOD AND APPARATUS FOR MANAGING DIGITAL CONTENT
Title (en)
METHOD AND APPARATUS FOR MANAGING DIGITAL CONTENT
Title (de)
VERFAHREN UND VORRICHTUNG ZUR VERWALTUNG DIGITALER INHALTE
Title (fr)
PROCEDE ET APPAREIL PERMETTANT DE GERER UN CONTENU NUMERIQUE
Publication
Application
Priority
- KR 2006001546 W 20060425
- KR 20050065669 A 20050720
- KR 20050128708 A 20051223
- US 67433305 P 20050425
- US 73943905 P 20051125
Abstract (en)
[origin: WO2006115364A1] A method and apparatus for managing digital content, which can detect the leakage of an encryption key when the encryption key used for encrypting the digital content is leaked or cracked. When the encrypted digital content is decrypted by an illegal device, a module linked with the encrypted digital content is automatically driven and a digital content managing apparatus is then notified that the encrypted digital content has been decrypted by the illegal device such that the digital content managing apparatus can change the encryption key. Thus, it is possible to prevent the digital content from being continuously leaked due to the use of the same encryption key for encrypting subsequent digital content.
IPC 8 full level
G06F 21/10 (2013.01); H04L 9/08 (2006.01)
CPC (source: EP)
G06F 21/107 (2023.08)
Citation (search report)
- [I] WO 2004084050 A1 20040930 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [I] US 5825883 A 19981020 - ARCHIBALD WILLIAM CHARLES [US], et al
- [I] US 2003056093 A1 20030320 - HUITEMA CHRISTIAN [US], et al
- [A] US 2004103312 A1 20040527 - MESSERGES THOMAS [US], et al
- [A] WO 2004077301 A1 20040910 - MATSUSHITA ELECTRIC IND CO LTD [JP], et al & EP 1603045 A1 20051207 - MATSUSHITA ELECTRIC IND CO LTD [JP]
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 2006115364 A1 20061102; EP 1875378 A1 20080109; EP 1875378 A4 20141210
DOCDB simple family (application)
KR 2006001546 W 20060425; EP 06757524 A 20060425