EP 1774696 A1 20070418 - DEVICE AND METHOD FOR PROVIDING AND DECRYPTING ENCRYPTED NETWORK CONTENT USING A KEY ENCRYPTION KEY SCHEME
Title (en)
DEVICE AND METHOD FOR PROVIDING AND DECRYPTING ENCRYPTED NETWORK CONTENT USING A KEY ENCRYPTION KEY SCHEME
Title (de)
EINRICHTUNG UND VERFAHREN ZUM BEREITSTELLEN UND ENTSCHLÜSSELN VON VERSCHLÜSSELTEM NETZWERKINHALT UNTER VERWENDUNG EINES SCHLÜSSEL-VERSCHLÜSSELUNGS-SCHLÜSSELSCHEMAS
Title (fr)
DISPOSITIF ET PROCEDE POUR L'ETABLISSEMENT ET LE DECHIFFRAGE DE CONTENU DE RESEAU CHIFFRE PAR LE BIAIS D'UN PROGRAMME DE CLE DE CHIFFREMENT DE CLE
Publication
Application
Priority
- IB 2005052205 W 20050704
- CN 200410055770 A 20040729
Abstract (en)
[origin: WO2006013477A1] The present invention relates to a method and device for decrypting an encrypted content received through a network, comprising: - an application unit for receiving the encrypted content and an encrypted first key through the network, in which the first key is associated with encryption of the content, and a dedicated second key is associated with encryption of the first key; and - a key management unit for acquiring the dedicated second key from a storage medium, and decrypting the encrypted first key by using the dedicated second key to provide the first key for the application unit to decrypt the encrypted content.
IPC 8 full level
H04L 9/08 (2006.01); G11B 20/00 (2006.01); H04N 7/16 (2006.01); H04N 7/167 (2006.01); H04N 7/173 (2011.01); H04N 21/2347 (2011.01); H04N 21/4405 (2011.01); H04N 21/8352 (2011.01)
CPC (source: EP KR)
H04L 9/00 (2013.01 - KR); H04L 9/08 (2013.01 - KR); H04L 9/0822 (2013.01 - EP); H04L 9/083 (2013.01 - EP); H04N 7/1675 (2013.01 - EP); H04N 7/17318 (2013.01 - EP); H04N 21/2347 (2013.01 - EP); H04N 21/23476 (2013.01 - EP); H04N 21/4405 (2013.01 - EP); H04N 21/44055 (2013.01 - EP); H04N 21/8352 (2013.01 - EP); H04L 2209/60 (2013.01 - EP)
Citation (search report)
See references of WO 2006013477A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
WO 2006013477 A1 20060209; CN 1728262 A 20060201; CN 1989728 A 20070627; EP 1774696 A1 20070418; JP 2008508763 A 20080321; KR 20070039157 A 20070411; TW 200704092 A 20070116
DOCDB simple family (application)
IB 2005052205 W 20050704; CN 200410055770 A 20040729; CN 200580025258 A 20050704; EP 05758468 A 20050704; JP 2007523180 A 20050704; KR 20077004468 A 20070226; TW 94123394 A 20050711