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:
Jan. 28, 2014
Filed:
Jul. 30, 2009
Applicant:
David Vigilant, Meudon, FR;
Inventor:
David Vigilant, Meudon, FR;
Assignee:
Gemalto SA, Meudon, FR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method and to an electronic device for securing the computation of a modular exponentiation x=mmod N against invasive attacks. The invention comprises applying a mask to the message m, and after the modular exponentiation is carried out, in verifying that the exponentiation was not altered thanks to properties introduced by the mask.