Frostberg supplies the electronic stability control module for the Black Swan Automotive programme. Stability behaviour is set by signed calibration bundles; the module rejects any bundle whose signature does not verify.
Calibration bundles are pushed to a module by VIN. Each bundle carries an HMAC signature tied to the target module; an unsigned or wrongly signed bundle is refused.
| field | meaning |
|---|---|
vin | target vehicle |
disable | ESC state carried in the bundle |
sig | bundle signature (hex) |
POST /calibrate
Every module carries a unique serial. A car reports its own module serial in its diagnostic data, alongside the rest of its telemetry.
Internal signing tooling: frostberg_calsign.py.