END-TO-END PROTECTION METHOD

1 . An electronical device configured to execute a communication via a communication bus, wherein the electronical device comprises a hardware component different from a processor, and wherein the electronical device is configured to execute directly an end-to-end protection method of the communication;

wherein the electronical device, during the communication, is configured to receive, to transmit, or to receive and to transmit at least one message comprising a control field data; and

wherein the end-to-end protection method comprises:

generating the control field data of the at least one message using data from the message to calculate the control field data and increasing a message counter.

2 . The electronical device of claim 1 , wherein the communication bus is a controller area network bus.

3 . The electronical device of claim 1 , wherein the communication bus is a controller area network flexible data-rate bus.

4 . The electronical device of claim 1 , wherein the communication bus is a controller area network flexible data-rate light bus.

5 . The electronical device of claim 1 , wherein the communication bus is a controller area network flexible data-rate XL bus.

6 . The electronical device of claim 1 , wherein the hardware component is a finite-state-machine.

7 . (canceled)

8 . (canceled)

9 . (canceled)

10 . The electronical device of claim 1 , wherein the end-to-end protection method further comprises:

verifying the control field data of the at least one message.

11 . The electronical device of claim 10 , wherein verifying the control field data of the at least one message comprises:

using data from the message to calculate a first version of the control field data;

verifying the first version with a second version of the control field data comprised in the message;

verifying a value of a message counter to a stored value of the message counter;

if a verification fails, increasing an error counter; and if all verifications succeed, decreasing an error counter.

12 . An end-to-end protection method of a communication executed directly by a hardware component of an electronical device adapted to execute the communication via a communication bus, wherein the end-to-end protection method comprises:

wherein the electronical device, during the communication, is configured to receive, to transmit, or to receive and to transmit at least one message comprising a control field data;

generating the control field data of at least one message, wherein generating the control field data comprises:

using data from the message to calculate the control field data; and

increasing a message counter;

performing verification comprising:

using data from the message to calculate a first version of the control field data;

verifying the first version with a second version of the control field data comprised in the message;

verifying a value of a message counter to a stored value of the message counter;

if one of the verification fails, increasing an error counter; and

if all the verifications succeed, decreasing an error counter.

13 . The end-to-end protection method of claim 12 , wherein the communication bus is a controller area network bus.

14 . The end-to-end protection method of claim 12 , wherein the communication bus is a controller area network flexible data-rate bus.

15 . The end-to-end protection method of claim 12 , wherein the communication bus is a controller area network flexible data-rate light bus.

16 . The end-to-end protection method of claim 12 , wherein the communication bus is a controller area network flexible data-rate XL bus.

17 . The end-to-end protection method of claim 12 , wherein the hardware component is a finite-state-machine.

18 . A system comprising the first electronical device of claim 1 and at least one second electronical device.

19 . The system of claim 18 , wherein the at least one second electronical device comprises a second electronical device of the electronical device of claim 1 .

20 . The system of claim 18 , wherein the at least one second electronical device is configured to execute an end-to-end protection method.