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Instead of pieces of metal physically on the car, you want all cars to have a radio transceiver attached to a computer with crypto? That doesn't seem like a pr
by akerl_ 11mo ago
Instead of pieces of metal physically on the car, you want all cars to have a radio transceiver attached to a computer with crypto?
That doesn't seem like a privacy win.
- kragen 11mo agoYes. It's potentially a privacy win because (1) it can't be read by random people, only law enforcement, and (2) it can't be read without notifying you.
- akerl_ 11mo agoYou may want to read https://en.wikipedia.org/wiki/Clipper_chip https://en.wikipedia.org/wiki/Clipper_chip You can’t make a transceiver and chip for this kind of deployment that can only be used by the right people. Either the secrets will leak or the implementation will have vulns or both.
- kragen 11mo agoOh, I was on cypherpunks in 01992, so I know about the Clipper Chip. But in this case you don't need to keep any secrets from the owner of the vehicle; they're free to attach a debugging connector to their own transceiver and read it at any time. The idea is to make their car anonymous to other people, except for law enforcement, not to themselves. Maybe you think there's no way that the transceiver can successfully authenticate those law-enforcement requests without containing secrets. It can; it only needs the public key of a root CA.