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The lockdowns are only for the user-facing diagnostic port. I'm not aware of any vehicle that uses encryption & authentication on the inner buses. Your only cha
by Nextgrid 4y ago
The lockdowns are only for the user-facing diagnostic port. I'm not aware of any vehicle that uses encryption & authentication on the inner buses. Your only challenge is to reverse-engineer the meaning of the messages.
- bri3d 4y agoSome modern vehicles with FlexRay have full-bus encryption, and very modern CAN systems usually use HMAC for security sensitive stuff like immobilizer and key commands. I think ADAS systems will probably use similar in the coming years as vendors become more concerned and upset with system tampering. But, yeah, overall, most vehicle control systems are far less evil than people seem to think. I think part of the issue is that the "vehicle hacking" community have managed to massively over-hype basic protocol / message reverse engineering.
- MichaelCollins 4y agoWhat if you ripped out all the control electronics, leaving only the actuators, and replaced the control circuits with off the shelf parts? I expect it might cost a pretty penny, but it should be doable right?
- Nextgrid 4y agoAt least for engine management that's definitely doable, there are off-the-shelf ECUs for race/custom cars that are meant to be used like this (configurable via USB so you can tune every parameter). For everything else you will most likely need to go custom but it's absolutely possible.