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. 09, 2021
Filed:
Sep. 13, 2018
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Olivier Savry, Sassenage, FR;
Abstract
A method including the loading into registers of a microprocessor of a code line recorded at an address @, and then calculating, with a securing hardware module, an initialization vector with the aid of a relation iv=F(@), where @is the address from which the code line was loaded, and then decrypting, with the securing hardware module, the code line loaded with the aid of the initialization vector calculated to obtain: a datum Dof its cryptogram, and a first error-detecting code, and then verifying, with the securing hardware module and with the aid of the first error-detecting code obtained, whether there exists an error in the datum Dor its cryptogram and, if such an error exists, triggering the signalling of an execution fault and, if such an error does not exist, inhibiting this signalling of an execution fault.