Spoofing detection

摘要

A method for preventing spoofing in an automotive network, the method comprising storing at least one address of a first vehicle electronic control unit and detecting at least one message from a plurality of second electronic control units on a vehicle communications bus, the at least one message having an originating address that matches the at least one address of the electronic control unit and determining that said at least one message was sent by a source other than the electronic control unit; and generating and transmitting a negative acknowledgment (NACK) message to at least one module on the bus in the automotive network, instructing the plurality of second electronic control units to take no action on the at least one message.

主权项

1. A method for preventing spoofing in an automotive network, the method comprising:
storing at least one address of a first vehicle electronic control unit; detecting at least one message from a plurality of second electronic control units on a vehicle communications bus, the at least one message having an originating address that matches the at least one address of the electronic control unit; determining that said at least one message was sent by a source other than the electronic control unit; determining that the source other than the electronic control unit is an originating spoofing device; generating and transmitting a negative acknowledgment (NACK) message to at least one module on the vehicle communications bus in the automotive network, instructing the plurality of second electronic control units to take no action on the at least one message; and forcing the originating spoofing device to an off bus state after a predetermined number of NACKs is received, the off bus state being a removal of the originating spoofing device from the vehicle communications bus.