TT Secure QR Engine
QR Reader V3.0 — secure offline field platform
Per-device enrolled keys
Each handset holds its own key pair; data keys are sealed to that device and revocable from the console.
Signed, non-forgeable codes
Every payload is signed server-side. A field device can read a code but can never mint one.
Zero-internet operation
Decryption, verification and inspection capture all work with no connectivity.
Tamper-evident logging
Offline entries are hash-chained and device-signed, then re-verified on sync.