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:
Oct. 31, 2017
Filed:
Nov. 12, 2013
Gemalto SA, Meudon, FR;
Stéphanie Salgado, Meudon, FR;
GEMALTO SA, Meudon, FR;
Abstract
A device (CD) is intended for controlling authenticity of a code received with a message by an electronic device (ED) and resulting from application to this message of a bijective algorithm with at least one predetermined key. This device (CD) has i) a first computation means (CM) arranged for applying partly this bijective algorithm with this predetermined key, from a starting step to a chosen intermediate step, to the received message, in order to get a first result, ii) a second computation means (CM) arranged for applying partly in a reverse manner the bijective algorithm with the predetermined key, from an ending step to this chosen intermediate step, to the received code while using the received message, in order to get a second result, and iii) a comparison means (CM) arranged for comparing these first and second results and for outputting an information representative of the authenticity of the received code when the first and second results are identical.