H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 21/6334 (2011.01) H04N 21/4405 (2011.01) H04N 5/44 (2011.01)
Patent
CA 2586172
Described herein are embodiments that provide an approach to cryptographic key management for a digital rights management (DRM) architecture that includes multiple levels of key management for minimizing bandwidth usage while maximizing security for the DRM architecture. In one embodiment, there is provided a data structure for cryptographic key management that includes a public/private key pair and three additional layers of symmetric keys for authorizing access to a plurality of contents.
L'invention concerne un système et un procédé de gestion de clés cryptographiques conçues pour une architecture de gestion de droits numériques (DRM) comprenant des niveaux multiples de gestion de clés servant à limiter au maximum l'utilisation de la largeur de bande, tout en optimisant la sécurité de cette architecture DRM. Dans un mode de réalisation, elle concerne une structure de données de gestion de clés cryptographiques comprenant une paire de clés publique et privée et trois couches supplémentaires de clés symétriques servant à autoriser l'accès à une pluralité de contenus.
General Instrument Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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