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:
Jul. 22, 2014
Filed:
Apr. 14, 2005
Applicants:
Hugues Thiebeauld DE LA Crouee, Bordeaux, FR;
Christophe Giraud, Pessac, FR;
Inventors:
Hugues Thiebeauld De La Crouee, Bordeaux, FR;
Christophe Giraud, Pessac, FR;
Assignee:
Oberthur Technologies, Colombes, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); G06F 21/00 (2013.01); G06F 21/51 (2013.01); G06F 21/77 (2013.01); G06F 21/64 (2013.01);
U.S. Cl.
CPC ...
G06F 21/51 (2013.01); G06F 21/77 (2013.01); G06F 21/64 (2013.01);
Abstract
A secure data processing method includes the following steps: padding (E) a memory area (MAC') with a pad value (A); writing (E) a first datum in the memory area (MAC′); in the area, reading (E) a second datum with at least one part of the first datum as it was written in the memory area (MAC′); and executing an operation (E) using the second datum.