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:
Mar. 17, 2026
Filed:
Jun. 23, 2022
Applicant:
Giesecke+devrient Epayments Gmbh, Munich, DE;
Inventor:
Lars Hoffmann, Munich, DE;
Assignee:
GIESECKE+DEVRIENT EPAYMENTS GMBH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/76 (2006.01);
U.S. Cl.
CPC ...
G06F 7/764 (2013.01); G06F 2207/7233 (2013.01);
Abstract
A method is provided for re-masking from a Boolean mask to an arithmetic mask with a modulus (2m*p), in which m is an integer greater than or equal to zero, and p has at least one prime divisor unequal to 2, so that a carry is generated. The carry is masked or balanced to protect it against intrusion attacks.