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:
Sep. 08, 2015
Filed:
Apr. 12, 2012
Applicants:
Aline Gouget, Paris, FR;
Pascal Paillier, Paris, FR;
Inventors:
Aline Gouget, Paris, FR;
Pascal Paillier, Paris, FR;
Assignee:
GEMALTO SA, Meudon, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 1/04 (2006.01); H04K 1/06 (2006.01); H04L 9/06 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0668 (2013.01); H04L 9/00 (2013.01);
Abstract
The invention concerns the contact-less technology MIFARE, and describes a method to update a state by injecting an IV using a non-linear feedback shift register that makes use of only look-up tables and basic operations on 8-bit words.