Method for Securely Handling Data During the Running of Cryptographic Algorithms on Embedded Systems
AssigneeGemplus
InventorsBenoit Chevallier-Mames, Mathieu Ciet, Karine Villegas, Jacques Fournier
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Abstract
The invention relates to a method for handling data between two memory areas of an electronic component having at least one working memory area for carrying out operations on the component, which bring into play at least some of the data. The same memory areas are used for executing an operation, whatever the operation to be executed is, in such a manner that each operation has a hidden signal trace that is identical in terms of location leakage outside the component.
Claims10
A method for handling data between memory areas of an electronic component comprising at least one working memory area for carrying out operations on said component, bringing into play at least one of said data, the method comprising the use of the same memory areas for executing an operation, whatever the operation to be executed is, such that each operation has a hidden signal trace that is identical in terms of location leakage outside said component.
Dependencies are inferred from the claim text.