Pair once
Load or create a P-256 key. Whitelist it with Authenticator::BuildKeyWhitelistMessage. Present an NFC card if the car returns WAIT.
TeslaBLE
Encode Tesla vehicle-command protobufs, run the BLE handshake, and talk to the car from C++ or Arduino.
Two domains
Request session info on VCSEC and Infotainment. Session::UpdateSessionInfo checks the HMAC, then BuildRoutableMessage encrypts the payload.
Encode, wrap, write
CarServer::* and Security::* encode Tesla actions. Session::BuildRoutableMessage encrypts them. BleFrame reassembles indications. You write the GATT characteristic.
Pinned to Tesla
Protos from teslamotors/vehicle-command f97fa1e. Host tests include Tesla protocol.md vectors and Go proto.Marshal goldens.