Motor vehicle display device, motor vehicle electronic system, motor vehicle, method for displaying data and a computer program product

摘要

The invention relates to a motor vehicle display apparatus having an electronic appliance containing:
a first memory area (117) for storing data (109), wherein the data contain a motor vehicle license number,a second memory area (119) for storing at least one first certificate (178),a first interface (103) for receiving a first signal (109′) and a signature (111′, 113′) for the first signal from a transmitter (107′),means (123) for checking the validity of the signature of the first signal using the first certificate,means (139) for generating a second signal on the basis of the reception of the first signal,means (127) for actuating a display apparatus (136) to reproduce the data stored in the first memory area and to visually output the second signal,

wherein the second signal is generated and/or output only if the signature is valid.

主权项

1. A motor vehicle display apparatus having an electronic appliance configured for mounting in a motor vehicle, the electronic appliance comprising:
a first memory area for storing data, wherein the comprises motor vehicle information; a second memory area for storing at least one first certificate; a first interface for receiving a first signal and a signature for the first signal from a transmitter external to the motor vehicle; a validity checking module, the validity checking module capable of checking the validity of the signature of the first signal using the first certificate; a signal generation module, the signal generation module capable of accessing data from the first memory area in response to the first signal and generating a second signal carrying a representation of the accessed data; a display actuating module responsive to the second signal, the display actuating module capable of actuating a display to visually output the representation of the accessed data; a fourth memory area for storing a motor vehicle identifier; and a tag verification module; wherein the second signal is generated and/or output only if the signature is valid; wherein the motor vehicle identifier explicitly identifies a motor vehicle with which the motor vehicle display apparatus is associated; wherein the fourth memory area is a protected memory area; wherein the first interface is designed to receive a message; wherein the message contains at least the first signal, a tag and the signature of the first signal and/or of the tag; wherein the tag verification module is capable of checking whether the tag matches the motor vehicle identifier stored in the fourth memory area and wherein a prerequisite for the generation and/or output of the second signal is that the tag and the motor vehicle identifier match.