System and method for drm regional and timezone key management

G - Physics – 06 – Q

Patent

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G06Q 99/00 (2006.01)

Patent

CA 2598747

A cryptographic media stream system for ensuring media stream content is only consumed in authorized regions. The system includes at least one encryption/decryption key source configured to provide at least one of a regional key and a timezone key, where the regional key and the timezone key are globally unique keys, a media encryption engine that receives an unencrypted media stream and encrypts the encrypted media stream, and a media decryption engine that receives the encrypted media stream, and decrypts the encrypted media stream in response to at least one of the regional key and the timezone key.

La présente invention se rapporte à un système de flux multimédia cryptographique, qui est destiné à garantir qu'un contenu de flux multimédia ne soit consommé que dans des régions autorisées. Le système selon l'invention comprend : au moins une source de clés de chiffrement/déchiffrement, configurée pour fournir au moins une clé de région et/ou une clé de fuseau horaire, lesdites clé de région et clé de fuseau horaire étant des clés uniques dans le monde entier ; un moteur de chiffrement multimédia, qui reçoit un flux multimédia non chiffré et qui chiffre ce dernier ; et un moteur de déchiffrement multimédia, qui reçoit le flux multimédia chiffré et qui déchiffre ce dernier en réponse à au moins la clé de région et/ou la clé de fuseau horaire.

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