Device and method for protection against stack overflow and...

Details Device and method for protection against stack overflow and... Device and method for protection against stack overflow and...

G - Physics

06

F

G06F 9/38 (2006.01) G07B 17/00 (2006.01)

Patent

CA 2349938

The invention concerns a method for protecting sensitive data against overflow in a stack (300 to 305), memory space reserved for part of a programme. Said method comprises an operation which consists in assigning a stack to each programme part, during which the most upstream stack (306), relatively to the displacement direction of an indicator in a stack, is assigned a task for operating on said sensitive data. Preferably, said method comprises the execution of a single task operating on said sensitive data.

Le procédé de l'invention s'applique à la protection de données sensibles contre le débordement de pile (300 à 305), espace mémoire réservé à une partie d'un programme. Ce procédé comporte une opération d'attribution de pile à chaque partie de programme, au cours de laquelle la pile la plus en amont (306), par rapport au sens de déplacement d'un pointeur dans une pile, est attribuée à une tâche opérant sur lesdites données sensibles. Préférentiellement, ce procédé comporte l'exécution d'une tâche unique opérant sur lesdites données sensibles.

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