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:
Sep. 20, 2016
Filed:
Apr. 24, 2012
Bruce Murray, Hamburg, DE;
Bruce Murray, Hamburg, DE;
NXP B.V., Eindhoven, NL;
Abstract
It is described a method for operating a transponder (), the method comprising: receiving, by the transponder, in particular wirelessly, transmitted reader data () representing x and sqrt[b]/x, wherein x is an element of a binary Galois field and b is a scalar; processing, by the transponder, the reader data () to determine, whether x is a first coordinate of a point on an elliptic curve defined by the elliptic curve equation y+xy=x+ax+b, wherein the elliptic curve is defined over the Galois field such that x and y are elements of the Galois field, wherein y is a second coordinate of the point on the elliptic curve. Further a transponder, a method for operating a reader and a reader are described.