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:
Nov. 15, 2022
Filed:
Jan. 21, 2021
Nxp B.v., Eindhoven, NL;
Tobias Schneider, Styria, AT;
Joppe Willem Bos, Wijgmaal, BE;
Joost Roland Renes, Eindhoven, NL;
Christine van Vredendaal, Veldhoven, NL;
NXP B.V., Eindhoven, NL;
Abstract
Various embodiments relate to a method and system for securely comparing a first and second polynomial, including: selecting a first subset ofcoefficients of the first polynomial and a second subset ofcorresponding coefficients of the second polynomial, wherein the coefficients of the first polynomial are split intoshares and the first and second polynomials havecoefficients; subtracting the second subset of coefficients from one of the shares of the first subset of coefficients; reducing the number of elements in the first subset of coefficients toelements by combining groups of/elements together; generating a random number for each of the elements of the reduced subset of coefficients; summing the product of each of the elements of the reduced subset of coefficients with their respective random numbers; summing theshares of the sum of the products; and generating an output indicating that the first polynomial does not equal the second polynomial when the sum does not equal zero.