A system for generating a linkage between a vehicle and a user and for generating a linkage between users includes: a display device to display image data of a code; a communication device to communicate with a portable electronic device; a processing circuitry operatively connected to the display device and the communication device and configured to generate a unique code to be displayed, display the unique code at the display device to be read by a portable electronic device associated with a user, receive a determination that the unique code has been read by the portable electronic device associated with the user, and establish a trusted linkage between the vehicle and the user based on the presence of the portable electronic device at the vehicle.