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. 20, 2018
Filed:
Dec. 31, 2013
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Peter Maria Franciscus Rombouts, Sint-Katelijne-Waver, BE;
Timotheus Arthur van Roermund, Eindhoven, NL;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/32 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3252 (2013.01); H04L 9/3066 (2013.01); H04L 2209/046 (2013.01); H04L 2209/122 (2013.01); H04L 2209/72 (2013.01); H04L 2209/76 (2013.01);
Abstract
In order to reduce latency of elliptical curve digital signature generation a portion of the digital signature is pre-calculated before receipt of the message hash using an unmodified ECDSA computing engine. After the message hash is received, the digital signature is completed without using the ECDSA computing engine. Applications include generating digital signatures for the safety messages in Intelligent Transport Systems.