BLUETOOTH LOW ENERGY (BLE) COMMUNICATION BETWEEN A MOBILE DEVICE AND A VEHICLE

• US 20170164192A1
• Filed: 12/07/2015
• Published: 06/08/2017
• Est. Priority Date: 12/07/2015
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: SCHUSSMANN, Jennifer J., SAXTON, Lynn, TESTA, Alessandro, SAYRE, David K., LEBOEUF, Karl B.
• Granted Patent: US 10,231,123 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04W 12/033 of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 12/041 Key generation or derivation
• CPC Class Codes: H04W 12/0471 Key exchange
• CPC Class Codes: H04W 12/122 Counter-measures against attacks; Protection against rogue devices
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

A system and a method for communicating over a Bluetooth Low Energy (BLE) connection in a vehicle. The method includes the steps of: establishing a Bluetooth Low Energy (BLE) connection between a mobile device and a BLE system in the vehicle, wherein the establishing step includes receiving first credentials of the mobile device at the BLE system; providing second credentials to the mobile device from the vehicle, wherein the second credentials are different than the first credentials; and receiving a message from the mobile device that is encrypted using the first and second credentials.

Claims

1. A method of communicating over a Bluetooth Low Energy (BLE) connection in a vehicle, comprising the steps of:

establishing a Bluetooth Low Energy (BLE) connection between a mobile device and a BLE system in the vehicle, wherein the establishing step includes receiving first credentials of the mobile device at the BLE system;

providing second credentials to the mobile device from the vehicle, wherein the second credentials are different than the first credentials; and

receiving a message from the mobile device that is encrypted using the first and second credentials.

2. The method of claim 1, wherein the second credentials are provided to the mobile device via an out-of-band communication.

3. The method of claim 1, wherein providing the second credentials includes at least one of:

displaying a code on a vehicle display, providing a QR code in the vehicle, or using a short-range wireless connection (SRWC) other than BLE.

4. The method of claim 1, wherein the BLE system includes a vehicle system module (VSM) and a BLE module, wherein the second credentials are stored in the VSM.

5. The method of claim 4, wherein the VSM is a body control module (BCM).

6. The method of claim 1, further comprising receiving a proximity signal from a third device at the VSM indicating the presence at the vehicle of the third device.

7. The method of claim 6, wherein, when the third device is associated with a keyed ignition of the vehicle, the proximity signal is wired or wireless, and wherein, when the third device is associated with a keyless ignition of the vehicle, the proximity signal is wireless.

8. The method of claim 6, further comprising at least one of the following:

based on receiving the proximity signal, performing the establishing step;

or

based on receiving the proximity signal, performing the providing step.

9. The method of claim 1, wherein the second credentials comprises a symmetric key.

10. The method of claim 1, wherein the first and second credentials are associated with AES-CCM (Advanced Encryption Standard Counter with Cipher Block Chaining Message Authentication Code).

11. A method of communicating over a Bluetooth Low Energy (BLE) connection in a vehicle, comprising the steps of:

establishing a Bluetooth Low Energy (BLE) connection between a mobile device and a BLE system in the vehicle, wherein the establishing step includes receiving first credentials of the mobile device at the BLE system;

providing second credentials to the mobile device from the vehicle;

generating third credentials for the mobile device, wherein the third credentials include a public key and a private key;

providing the third credentials to the mobile device using the second credentials; and

receiving a first message from the mobile device that is encrypted using the first and third credentials.

12. The method of claim 11, further comprising sending to the mobile device a response message in response to receiving the first message, wherein the response message is encrypted using the first credentials and fourth credentials, wherein the fourth credentials are stored at the vehicle.

13. The method of claim 12, wherein the fourth credentials include a public key and a private key.

14. The method of claim 11, wherein, following providing the third credentials to the mobile device, future wireless communications between the mobile device and the vehicle do not use the second credentials.