Method of securing co-operation between objects in an...

Details Method of securing co-operation between objects in an... Method of securing co-operation between objects in an...

G - Physics

06

F

G06F 9/44 (2006.01) G06F 9/42 (2006.01) G06F 12/14 (2006.01)

Patent

CA 2194008

his method consists in assigning an empowerment level (HAB) to a client objet and a so-called dynamic sensitivity level (NSD) to a method (or processing procedure) for a server objet (ProcObjSv). The dynamic sensitivity level is calculated at the time of instantiation (50,51) of the server object on the basis of so-called static sensitivity levels (NSS). The empowerment level of the client object is passed to the server object method when this method is invoked by the client object, and this empowerment level (HAB) is compared (55) with the dynamic sensitivity level (NSD) used for access control. This method makes possible a multi-level security system.

Cette méthode consiste à assigner un niveau d'habilitation (HAB) à un objet client et un niveau de sensibilité dit dynamique (NSD) à une méthode (ou procédure de traitement) d'un objet serveur (ProcObjSv). Le niveau de sensibilité dynamique est calculé au moment de l'instanciation (50,51) de l'objet serveur à partir de niveaux de sensibilité dits statiques (NSS). Le niveau d'habilitation de l'objet client est passé à la méthode de l'objet serveur lors de l'invocation de cette méthode par l'objet client et ce niveau d'habilitation (HAB) est comparé (55) au niveau de sensibilité dynamique (NSD) de la méthode aux fins d'un contrôle d'accès. Cette méthode permet de mettre en oeuvre un modèle de sécurité multi-niveaux.

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