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1. (WO2017155960) SECURE SMARTPHONE BASED ACCESS AND START AUTHORIZATION SYSTEM FOR VEHICLES

Pub. No.:    WO/2017/155960    International Application No.:    PCT/US2017/021109
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 08 00:59:59 CET 2017
IPC: B60R 25/24
Applicants: CONTINENTAL INTELLIGENT TRANSPORTATION SYSTEMS, LLC
Inventors: BERGERHOFF, Nikolas
AHUJA, Ritesh
Title: SECURE SMARTPHONE BASED ACCESS AND START AUTHORIZATION SYSTEM FOR VEHICLES
Abstract:
An access and start authorization system comprises: a transceiver-and-code-generator module that is configured to be installed in a vehicle, wherein the transceiver-and-code-generator module includes: a Bluetooth transceiver configured to establish a Bluetooth connection with a smartphone; a code generator that is configured to: communicate a secret key to one or more vehicle electronic control units while learning the code generator to the vehicle, subsequently use the secret key to encrypt communications between the code generator and the vehicle, and not store in code-generator memory the secret key in unencrypted form thereby preventing unauthorized access, via the code generator, to the secret key by a person who has access to the vehicle.