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. 29, 2020
Filed:
May. 31, 2018
Koninklijke Philips N.v., Eindhoven, NL;
Ronald Rietman, Eindhoven, NL;
Maarten Peter Bodlaender, Eindhoven, NL;
Sebastiaan Jacobus Antonius De Hoogh, Oosterhout, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
Some embodiments are directed to a cryptographic device () arranged to compute a block cipher on an input message (). The device computes a plurality of intermediate block cipher results by computing and re-computing a first intermediate block cipher result () of the plurality of intermediate block cipher results by applying the plurality of block cipher rounds sequentially to the input message followed by one or more additional block cipher rounds. A plurality of averaging functions are applied to the plurality of intermediate block cipher results, the results of which are added, after which the inverse of the one or more additional block cipher rounds is applied.