Secure data transmission system and method

Details Secure data transmission system and method Secure data transmission system and method

H - Electricity

04

N

H04N 21/254 (2011.01) H04N 21/2347 (2011.01) H04L 9/32 (2006.01)

Patent

CA 2405401

This invention concerns a system and a method of transmission and storage of audio/video data in encrypted form between a distribution centre and at least one exploitation module. Instead of transmitting the information allowing the decryption in parallel to said data, these information are regrouped in a decryption data file comprising equally the data that define the access conditions to said audio/video data. This file is stored independently from said data and can be used for either an immediate use or a deferred one.

Cette invention concerne un système et une méthode de transmission et de stockage de données audio/vidéo sous forme encryptées entre un centre de diffusion et au moins un module d'exploitation. Au lieu de transmettre les informations permettant le décryptage parallèlement auxdites données, ces informations sont regroupées dans un fichier de données de décryptage comprenant également des données définissant les conditions d'accès auxdites données audio/vidéo. Ce fichier est stocké indépendamment desdites données et peut servir soit immédiatement ou soit lors d'une utilisation différée.

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