Fingerprint










ENROLLMENT



Characteristics


👎 invasive
👎 intrusive
👎 inert       





CAPTURE


Fingerprint Readers




📷
optical
miniature camera to take a picture of a finger






capacitive
a grid of tiny capacitors that store electricity which is discharged only at the points where the fingerprint ridges touch

whereby an array of thousands of capacitors can be used to map the pattern of the fingerprint







swipe






slap






thermal






ultrasonic


piezoelectric transducers & reflected energy
piezoresistive
piezosensitive

sound pulse is transmitted to the finger
then the reflected pulse is measured





💳
smart card






Mobilephone Fingerprint Reader






contactless





👍 👎
How Does Fingerprint Work?







🥊 🔨
Fingerprint-as-an-Attack-Surface (FaaAS)