Definition
Passive Biometric Authentication
Passive biometric authentication verifies identity by measuring a biological characteristic of the user without requiring any active participation beyond presenting the trait.
It is a form of biometric authentication.
Examples
| Characteristic | Measurement |
|---|---|
| Fingerprint | ridge and valley patterns |
| Face recognition | facial geometry and features |
| Retina / iris recognition | blood vessel pattern or iris texture |
| Hand geometry | size and shape of the hand |
| Palm veins | vascular pattern in the palm |
| DNA | genetic sequence |