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, 2015
Filed:
Mar. 06, 2013
Applicant:
Infineon Technologies Ag, Neubiberg, DE;
Inventors:
Berndt Gammel, Markt-Schwaben, DE;
Stefan Mangard, Munich, DE;
Assignee:
Infineon Technologies AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/28 (2006.01); H04L 9/06 (2006.01); G06F 7/58 (2006.01); G06F 3/06 (2006.01); G06F 21/71 (2013.01); G06F 21/72 (2013.01);
U.S. Cl.
CPC ...
H04L 9/28 (2013.01); H04L 9/06 (2013.01); G06F 7/584 (2013.01); G06F 3/06 (2013.01); H04L 9/0668 (2013.01); G06F 7/58 (2013.01); H04L 9/0662 (2013.01); G06F 21/71 (2013.01); G06F 21/72 (2013.01);
Abstract
An NLFSR of length k, configured to output a sequence of masked values x'=x+maccording to a masked recurrence x′=f(x′, . . . , x′), the NLFSR including a nonlinear feedback function configured to compute f(x′, . . . , x′) so as to obtain a feedback value, a correction function configured to compute (m, . . . , n)+m+h(m, m, x, . . . , x) to obtain a correction value c, and a corrector configured to correct the feedback value {circumflex over (x)}′using the correction value c to obtain a corrected feedback value which forms x′.