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. 24, 2019
Filed:
Oct. 26, 2017
Volkswagen Ag, Wolfsburg, DE;
Alexander Tschache, Wolfsburg, DE;
Volkswagen AG, , DE;
Abstract
A method for updating software of a control unit of a vehicle which includes exchanging individual data blocks of the software in a memory of the control unit and generating cryptographic material for each exchanged data block by processing each exchanged data block with a cryptographic function. The method includes storing the generated cryptographic material in a test data block which contains cryptographic material for each data block and includes verifying the consistency of the cryptographic material, stored in the test data block, of all data blocks of the software by matching the cryptographic material stored in the test data block with consistency test data. The disclosed embodiments reduce the necessary cryptographic operations during a partial updating of the software of a control unit of a vehicle.