Abstract:
A system and method for employing a mechanism for unlocking a vehicle ECU. The ECU stores a unique ECU identification value that identifies the particular ECU and a secure server stores the ECU identification value and a unique ECU security key value, where the identification value identifies the security key value in the server, and where the secure server stores the unique ECU identification value and the unique security key value for many ECUs. A service tool that wants to gain access to the ECU for software reprogramming or service requests the ECU identification value and a challenge from the ECU and sends them to the secure server, which then identifies the security key value associated with that ECU identification value and the response for the challenge. The secure server then sends the response to the service tool, which provides it to the ECU to unlock it for programming.
Abstract:
Methods and systems are provided for bypassing an authenticity check for a secure control module. In one embodiment, a method includes: receiving authenticity data from a secure source, wherein the authenticity data includes a signature and an identifier that is unique to the control module; programming the control module with the authenticity data; and bypassing the authenticity check of a control program of the control module based on the authenticity data.
Abstract:
A relay attack deterrence system includes a mobile platform including a plurality of mobile platform transmitter components and a mobile platform receiver component provided therein. The system further includes a fob device having a fob receiver component, a fob transmitter component, and a motion sensor component configured to produce motion information. The fob device is configured to receive, at the fob receiver component, one or more first signals from at least one of the plurality of mobile platform transmitter components and to selectably transmit, to the mobile platform receiver component, a second signal based on the motion information and position information derived from the one or more first signals.
Abstract:
A method for managing communications from a device onboard a vehicle is provided. The method accesses a message transmitted from the device; determines whether the message is permitted; and, when the determining step determines that the message is not permitted, prevents the message from further transmission to an intended recipient device.
Abstract:
Systems and methods for theft deterrence of a vehicle are provided. Each of two or more immobilization point devices generate a random number and broadcasts it to all of the other immobilization points devices. Each of the immobilization point devices retains a local copy of its own random number and concatenates the local copy of its own random number with the random numbers of the other of the two or more immobilization point devices from the bus. From the random numbers broadcast on the bus, all of the random numbers are concatenated in a predetermined sequence to form a single challenge, which is transmitted to a remote transponder. Each of the immobilization point devices then compares a single response from the transponder to their local concatenation. When a specific portion of the response from the transponder matches a local concatenation, then enabling the function of the immobilization point device.
Abstract:
A method provides secure communication between a first module and a second module within a vehicle communication network. A first anti-replay counter is provided within the first module, and a second anti-replay counter is provided within the second module. A message is transmitted from the first module to the second module over the vehicle communication network. The message includes a partial counter including only a portion of the contents of the first anti-replay counter, and the message is authenticated based on the partial counter.