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, 2016
Filed:
Aug. 27, 2010
Applicants:
Bruce Murray, Hamburg, DE;
Pieter Janssens, Berchem, BE;
Inventors:
Bruce Murray, Hamburg, DE;
Pieter Janssens, Berchem, BE;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/00 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/003 (2013.01); H04L 9/0643 (2013.01); H04L 2209/805 (2013.01);
Abstract
Device for generating a message authentication code for authenticating a message, wherein the message is divided in blocks (M) with a specified block length, the device comprising a generating unit for generating the message authentication code based on a message by using a block cipher algorithm, and an encrypting unit for performing an exclusive disjunction on the last block with a first key (K, K) and for performing an exclusive disjunction on the first and/or the last block additionally with a second key (K, K) for generating the message authentication code.