Vehicle Anti-Theft (Encrypted AES-128)

Encrypted AES-128 BLE immobilizer architecture. The ABK100 keyfob authorizes the driver via automatic BLE ID broadcast or button press. AVT20 / AVT50 verifies the keyfob and establishes a secure AES-128 session with ABR100 wirelessly.

System Architecture

Authorized Driver

ABK100 Keyfob

Passive Authentication

AES-128 Encrypted
Secure Authentication

Automatic Broadcast

ABK100 broadcasts BLE ID

Active Authentication

AES-128 Encrypted
Secure Authentication

Button Press

Driver presses button on ABK100

Bluetooth Low Energy

AVT20 / AVT50

Hidden 2-Wire GPS Tracker

  • BLE authentication controller
  • GNSS positioning
  • LTE communication
  • Local authorization logic

Tracking Platform

ABR100 BLE Relay

AES-128 Encrypted
Secure Authentication
Wireless Immobilizer

Starter / Ignition / Fuel Pump

Vehicle Engine

Authorization mode

ABK100 Authentication Mode Selected

Passive or Active mode?

Passive Mode

Broadcast ID

Active Mode

Button Press

AVT20 verifies authorized ABK100

Establish AES-128 encrypted BLE session with ABR100

YES

ABR100 ON

Vehicle can be started

NO

ABR100 OFF

Vehicle cannot be started

Event reported to Tracking Platform