this post was submitted on 27 Mar 2024
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Even cheap cars now have hundreds of processors. Modules can throw errors, send the car into limp, or deactivate the vehicle entirely.
Plus, emissions.
It’s a different game now.
I'm sure that is what the car manufacturers claim.
Don’t take my word for it. Tear into any one of the dozens of black boxes in your car and take it apart. Analyze the chips soldered on the boards. You might get lucky and find all standard chips with information available from suppliers.
Try looking at the data going across any one of the several buses transiting your vehicle. OBD is easy. The others are usually encrypted and much higher speed.
Cars are legitimately complex. Don’t just listen to the manufacturers and scoff. Look up some research into breaking the communication protocols that MB or BMW use. Compare that with GM’s newest standard. Go ahead and practice your reverse engineering skills, because these things aren’t published.
Encryption is a must if your car has anything-by-wire on it.
Acceleration is already commonly used this way.
If the car has internet, even more so.
I know, cars don't need internet, but it's there and it's convenient and it's easier to collect data that way..