The Controller Area Network (CAN) bus has been mandated in all cars sold in the United States since 2008. But CAN is terrible in many unique and disturbing ways. CAN has served as a convenient punching bag for automotive security researches for a plethora of reasons, but all of the available analysis tools share a shortcoming. They invariably use a microcontroller with a built-in CAN peripheral that automatically takes care of the low-level (ISO layer 1 and 2) communication details, and ensures...
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