Method and device for protection against access to a memory...

Details Method and device for protection against access to a memory... Method and device for protection against access to a memory...

G - Physics

06

F

G06F 12/14 (2006.01)

Patent

CA 2349935

The invention concerns a method for protecting data in a device comprising a microprocessor having at least a debug register. The invention is characterised in that the method comprises an operation which consists in assigning a debug register to the data to be protected (301). Preferably, the inventive method comprises, for each break triggered by a debug register assigned to protected data, an operation for verifying (302, 303) validity of access.

Le procédé de l'invention s'applique à la protection de données dans un dispositif comportant un microprocesseur possédant au moins un point d'arrêt matériel. Selon l'invention, le procédé de l'invention comporte une opération d'affectation de point d'arrêt à des données à protéger (301). Préférentiellement, le procédé de l'invention comporte, à chaque arrêt déclenché par un point d'arrêt matériel affecté à une donnée protégée, une opération de vérification (302, 303) de validité de l'accès.

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