Object and feature authorization for digital communication...

H - Electricity – 04 – L

Patent

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H04L 9/32 (2006.01) H04L 9/00 (2006.01) H04L 12/16 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2388210

A system for security and authorization processing in digital terminals. The processing load of a security processor (250) at the terminal (150) is reduced by configuring a multiple applications manager (MAM) (240) to determine if frequently--transmitted application data should be downloaded. The security processor is used by the MAM to build a local virtual application table (260) that indicates which applications are authorized for downloading. The security processor configures the terminal with an authorization state so that it knows which applications it is authorized to download, i.e., the applications (316', 334', 376') whose required authorization state correlate with the terminal's configured authorization state. The security processor is accessed when the terminals authorization state changes, or when a required authorization state of an application changes. These events are typically relatively infrequent.

L'invention concerne un système de traitement de sécurité et d'autorisation dans des terminaux numériques. On réduit la charge de traitement d'un processeur (250) de sécurité situé à un terminal (150) en configurant un gestionnaire d'applications multiples (MAM) (240) pour déterminer si des données d'application fréquemment transmises doivent être téléchargées. Le processeur de sécurité est utilisé par le MAM pour construire un tableau (260) d'applications virtuelles locales qui indique quelles applications sont autorisées à être téléchargées. Le processeur de sécurité configure le terminal à l'aide d'un état d'autorisation, de manière à savoir quelles applications ce dernier est autorisé à télécharger, c.-à-d. les applications (316', 334', 376') dont l'état d'autorisation requis est corrélé avec l'état d'autorisation configuré du terminal. Le processeur de sécurité est consulté si l'état d'autorisation du terminal change, ou si l'état d'autorisation requis d'une application change. Ces événements sont généralement relativement rares.

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