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:
May. 28, 2019
Filed:
Jan. 29, 2015
Applicant:
Safran Identity & Security, Issy les Moulineaux, FR;
Inventors:
Frédéric Boulet, Issy les Moulineaux, FR;
Victor Servant, Issy les Moulineaux, FR;
Assignee:
IDEMIA IDENTITY & SECURITY, Issy les Moulineaux, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/00 (2006.01); H04L 9/14 (2006.01); H04L 9/30 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/002 (2013.01); H04L 9/14 (2013.01); H04L 9/302 (2013.01); H04L 9/304 (2013.01); H04L 9/3226 (2013.01); H04L 9/3234 (2013.01); H04L 9/3249 (2013.01);
Abstract
The invention relates to a method for securing an electronic device (SC) against attacks via covert channels when the electronic device (SC) implements a Montgomery ladder for calculating the element AA. . .A where A appears k times. A designates an element of an Abelian group with a law, and k is a natural number. The method comprises a modified implementation of the Montgomery ladder. The invention also relates to a device (SC), a computer program and a storage medium arranged so as to implement such a method.