This means that the biometric information is encrypted and stored in a separate part of the smartphone, completely inaccessible to the regular operating system.
They can't even be exported.
Android can ask the TEE to validate an identity using biometrics, but cannot extract the biometric information..
Fingerprint biometrics uses some form of a scanner to obtain an image of your fingerprint.
Methods include the following: Optical scanner: This takes a digital image of your fingerprint by lighting up the finger through a prism and reading the way the ridges and valleys reflect the light..
No two individuals, not even identical twins, have the exact same identifiers – be it fingerprints, irises, voice scans or faceprints.
This makes biometrics extremely important to law enforcement agencies, who can use them reliably as part of background checks, criminal investigations, and mass disaster identification..
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A biometric template is a mathematical representation of features or characteristics from the source data, whether a fingerprint scan, facial image, or voice recording.
In the enrollment process the source data is collected the template is created, and then stored in a database as reference data.
