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1. WO2006122938 - SYSTEM AND METHOD FOR MANAGING ENCRYPTED CONTENT USING LOGICAL PARTITIONS

Publication Number WO/2006/122938
Publication Date 23.11.2006
International Application No. PCT/EP2006/062352
International Filing Date 16.05.2006
IPC
G06F 21/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
CPC
G06F 21/10
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material
G06F 2221/0706
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2221Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
07Indexing scheme relating to G06F21/10, protecting distributed programs or content
0702Binding
0704Device
0706Domain
H04L 2209/60
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
60Digital content management, e.g. content distribution
H04L 9/0822
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
0819Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
0822using key encryption key
H04L 9/083
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
0819Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
083involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
Applicants
  • INTERNATIONAL BUSINESS MACHINES CORPORATION [US]/[US] (AllExceptUS)
  • IBM UNITED KINGDOM LIMITED [GB]/[GB] (MG)
  • CERRUTI, Julian [AR]/[US] (UsOnly)
  • CHUMBLEY, Robert [US]/[US] (UsOnly)
  • RUTKOWSKI, Matthew, Francis [US]/[US] (UsOnly)
Inventors
  • CERRUTI, Julian
  • CHUMBLEY, Robert
  • RUTKOWSKI, Matthew, Francis
Agents
  • WATSON, Justine, Nicola
Priority Data
11/130,54617.05.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR MANAGING ENCRYPTED CONTENT USING LOGICAL PARTITIONS
(FR) SYSTEME ET PROCEDE DE GESTION DE CONTENU CRYPTE UTILISANT DES PARTITIONS LOGIQUES
Abstract
(EN)
The present invention provides a means for managing title keys by establishing logical partitions of title keys encrypted with the same binding information. The invention supports delayed and background processing of title keys when binding information changes. This invention supports proper accounting for devices required to recover rebinding processing when devices fail or go offline unexpectedly during processing. The invention uses binding context which represents a set of data that can be used to determine if the binding information used to encrypt a set of title keys is outdated and allow for rebinding to the current cluster binding information level.
(FR)
La présente invention concerne un organe permettant de gérer des clefs de titres en établissant des partitions logiques de clefs de titres cryptés avec les mêmes informations de liaison. Cette invention prend en charge des traitements retardés et de fonds de clefs de titres lorsque des informations de liaison changent. Cette invention prend en charge la comptabilisation adaptée de dispositifs requis pour récupérer un traitement de nouvelle liaison lorsque des dispositifs sont défaillantsou lorsqu'ils se déconnectent de manière intempestive pendant un traitement. Cette invention utilise des contextes de liaison qui représentent un ensemble de données qui peut être utilisé pour déterminer si les informations de liaison utilisées pour crypter un ensemble de clefs de titres sont périmées et pour autoriser la nouvelle liaison au niveau d'informations de liaison du groupe courant.
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