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:
Dec. 05, 2017
Filed:
Mar. 19, 2014
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Wil Michiels, Reusel, NL;
Jan Hoogerbrugge, Helmond, NL;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/28 (2006.01); H04L 9/00 (2006.01); H04L 29/06 (2006.01); G09C 1/00 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/002 (2013.01); G09C 1/00 (2013.01); H04L 63/1466 (2013.01); H04L 9/0618 (2013.01); H04L 2209/043 (2013.01); H04L 2209/16 (2013.01); H04L 2209/24 (2013.01);
Abstract
A method of performing a keyed cryptographic operation mapping an input message to an output message, wherein the input message comprises m input data and the output message comprises m output data and wherein the cryptographic operation includes at least one round and the cryptographic operation specifies a substitution box for mapping input data into output data, including: transforming each of the m input data into n output data using n split substitution boxes, wherein the n split substitution boxes sum to the specified substitution box; and mixing and combining the m×n output data.