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:
Feb. 26, 2013
Filed:
Mar. 07, 2005
Applicants:
Régis Bevan, Les Ulis, FR;
Christophe Giraud, Pessac, FR;
Hugues Thiebeauld DE LA Crouee, Bordeaux, FR;
Inventors:
Régis Bevan, Les Ulis, FR;
Christophe Giraud, Pessac, FR;
Hugues Thiebeauld De La Crouee, Bordeaux, FR;
Assignee:
Oberthur Technologies, Levallois-Perret, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/00 (2006.01); G06F 7/38 (2006.01); H04K 1/00 (2006.01); H04L 9/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a secure data processing method comprising the steps of generating (E; E) a first random value (A); executing (E; E) a first cryptographic algorithm (F) using the first random value (A); generating (E; E) a second random value (A); executing (E; E) a second cryptographic algorithm (F; G) using the second random value (A); and generating a result (V) to verify that the first algorithm (F) was properly executed.