A method and device for authenticating a license plate number for the purpose of authenticating a vehicle operation permission

The invention concerns a device (100) and a respective method for authenticating vehicle operation permission the device (100) being adapted to be detachably mounted to a vehicle, comprising a surface (102) adapted to receive a license plate number, characterized in that the device (100) comprises an electronic device (101) operable to interact with a vehicle controller to authenticate the license plate number. Furthermore the invention concerns a vehicle controller (150) and respective method, the vehicle controller (150) operable to interact with the device (100) to authenticate the license plate number of the device (100).