Patent · US Active

Method and system for providing security for the first time a mobile device makes contact with a device

US11057195B2 · kind B2 · utility

1Cited by

3References

13Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Alexander Tschache · Wolfsburg, DE
Timo Winkelvos · Sickte, DE
Bastian Bartels · Wolfsburg, DE

Key dates

Filing date	Sep 14, 2016
Grant date	Jul 6, 2021
Priority date	—
Expiry date	Nov 29, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04W4/80
WIPO fieldDigital communication
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.