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:
Jul. 06, 2021
Filed:
Sep. 14, 2016
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Alexander Tschache, Wolfsburg, DE;
Timo Winkelvos, Braunschweig, DE;
Bastian Bartels, Wolfsburg, DE;
Abstract
A method providing security the first time a mobile device makes contact with a device including a trusted entity introducing asymmetric key into a mobile device, performing a key exchange method on contact-making resulting in a shared key in the mobile device and in the device, generating a first signature with the symmetric key using the shared key in the mobile device, generating a second signature with the symmetric key using the shared key in the device, transmitting the first signature to the device and the second signature to the mobile device, authenticating the device by cryptographic verification of the second signature with the symmetric key in the mobile device, authenticating the mobile device by cryptographic verification of the first signature with the symmetric key in the device, and continuing contact-making in the event of mutual successful authentication or termination of contact-making if at least one authentication has failed.