The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2006
Filed:
Jun. 28, 2000
Christian Goire, Les Clayes Sous Bois, FR;
Thomas Jensen, Rennes Cedex, FR;
Pascal Fradet, Rennes Cedex, FR;
Daniel Le Metayer, Rennes Cedex, FR;
Ewen Denney, Rennes Cedex, FR;
Christian Goire, Les Clayes Sous Bois, FR;
Thomas Jensen, Rennes Cedex, FR;
Pascal Fradet, Rennes Cedex, FR;
Daniel Le Metayer, Rennes Cedex, FR;
Ewen Denney, Rennes Cedex, FR;
CP8 Technologies, Louveciennes, FR;
Abstract
The invention relates to a method for verifying transformation () of a source code () into a transformed code () designed for an embedded system () such as in a smart card or other portable or mobile device including data processing resources. The method comprises at least the following steps: determining a single virtual machine that factors in the behavior of both of these codes (), determining for each source code () and transformed code () a plurality of auxiliary functions representing the residual differences between said source code () and transformed code (), and a step for verifying a correspondence property between the auxiliary functions, the verification of the code transformation () being obtained from this last step.