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.

Date of Patent:
Dec. 24, 2024

Filed:

Oct. 11, 2022
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Joost Roland Renes, Eindhoven, NL;

Melissa Azouaoui, Norderstedt, DE;

Joppe Willem Bos, Wijgmaal, BE;

Björn Fay, Brande-Hörnerkirchen, DE;

Tobias Schneider, Graz, AT;

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 21/52 (2013.01); H04L 9/30 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3247 (2013.01); G06F 21/52 (2013.01); H04L 9/3093 (2013.01); H04L 9/3271 (2013.01);
Abstract

Various embodiments relate to a fault detection system and method for a digital signature algorithm, including: producing a digital signature of a message using a digital signature algorithm; storing parameters from a last round of the digital signature algorithm; executing the last round of the digital signature algorithm using the stored parameters to produce a check signature; comparing the digital signature to the check signature; and outputting the digital signature when the digital signature is the same as the check signature.


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