Method for calculating a transition from a Boolean masking to an arithmetic masking
Grant
US12578927B2
Kind: B2
Mar 17, 2026
Assignee
GIESECKE+DEVRIENT EPAYMENTS GMBH
Inventors
Lars Hoffmann
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.
CPC Classifications
G06F 7/764
G06F 2207/7233
G06F 21/755
G06F 7/72
G09C 1/00
H04L 9/003
H04L 9/3066
H04W 12/47
Filing Date
2022-06-23
Application No.
18569800
Claims
15