EP 2119092 A4 20120222 - METHOD AND SYSTEM FOR A RECURSIVE SECURITY PROTOCOL FOR DIGITAL COPYRIGHT CONTROL
Title (en)
METHOD AND SYSTEM FOR A RECURSIVE SECURITY PROTOCOL FOR DIGITAL COPYRIGHT CONTROL
Title (de)
VERFAHREN UND SYSTEM FÜR EIN REKURSIVES SICHERHEITSPROTOKOLL FÜR DIGITALE COPYRIGHT-KONTROLLE
Title (fr)
PROCÉDÉ ET SYSTÈME POUR UN PROTOCOLE DE SÉCURITÉ RÉCURSIF POUR UN CONTRÔLE DE DROITS D'AUTEUR NUMÉRIQUE
Publication
Application
Priority
US 2007005803 W 20070306
Abstract (en)
[origin: WO2008108764A2] Systems and methods are described which utilize a recursive security protocol for the protection of digital data. These may include encrypting a bit stream with a first encryption algorithm and associating a first decryption algorithm with the encrypted bit stream. The resulting bit stream may then be encrypted with a second encryption algorithm to yield a second bit stream. This second bit stream is then associated with a second decryption algorithm. This second bit stream can then be decrypted by an intended recipient using associated keys.
IPC 8 full level
G06F 21/00 (2006.01); G06F 21/60 (2013.01); H04L 9/08 (2006.01); H04L 9/18 (2006.01); H04L 9/32 (2006.01); H04L 29/06 (2006.01); H04N 7/167 (2011.01); H04N 21/266 (2011.01); H04N 21/4623 (2011.01)
CPC (source: EP)
G06F 21/602 (2013.01); H04L 9/065 (2013.01); H04L 9/0891 (2013.01); H04L 9/3242 (2013.01); H04L 9/3247 (2013.01); H04L 63/0457 (2013.01); H04L 63/062 (2013.01); H04L 2209/56 (2013.01); H04L 2209/603 (2013.01); H04N 21/2347 (2013.01); H04N 21/4405 (2013.01)
Citation (search report)
- [X] US 2006101524 A1 20060511 - WEBER JOSEPH W [US]
- [X] US 2005021941 A1 20050127 - OHMORI MOTOJI [JP], et al
- [X] US 2005058291 A1 20050317 - CANDELORE BRANT [US]
- [A] US 6398245 B1 20020604 - GRUSE GEORGE GREGORY [US], et al
- See references of WO 2008108764A2
Citation (examination)
- US 2004107356 A1 20040603 - SHAMOON TALAL G [US], et al
- DE 10224473 A1 20031224 - MUESCHENBORN HANS-JOACHIM [DE]
- EP 1560361 A1 20050803 - BROADCOM CORP [US]
- WO 2005088893 A1 20050922 - PSYCRYPT INC [US], et al
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 MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008108764 A2 20080912; WO 2008108764 A3 20081127; EP 2119092 A2 20091118; EP 2119092 A4 20120222; JP 2010520703 A 20100610
DOCDB simple family (application)
US 2007005803 W 20070306; EP 07772246 A 20070306; JP 2009552649 A 20070306