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:
Jun. 05, 2018
Filed:
Mar. 23, 2016
Applicant:
Gemalto SA, Meudon, FR;
Inventors:
Mariya Georgieva, Meudon, FR;
Frederic De Portzamparc, Paris, FR;
Assignee:
GEMALTO SA, Meudon, FR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04L 9/00 (2006.01); H04L 9/30 (2006.01); G06F 7/72 (2006.01);
U.S. Cl.
CPC ...
H04L 9/003 (2013.01); G06F 7/726 (2013.01); H04L 9/3026 (2013.01);
Abstract
A system, method and computer-readable storage medium for decrypting a code c using a modified Extended Euclidean Algorithm (EEA) having an iteration loop independent of the Hamming weight of inputs to the EEA and performing a fixed number of operations regardless of the inputs to the EEA thereby protecting a cryptographic device performing the decryption from side-channel attacks.