Re: https://firmwaresecurity.com/2018/06/13/copperheados-and-androidhardening-project/
Hardware-based attestation app for select Android devices. It can do either local verification with another Android device via QR code or scheduled server-based verification. It primarily relies on Trust On First Use using the hardware-backed keystore and key attestation. The initial unpaired verification relies on key attestation root.
https://github.com/AndroidHardening/Auditor/releases/tag/1
https://github.com/AndroidHardening/Auditor
https://play.google.com/store/apps/details?id=app.attestation.auditor
Firmware Security 