Android supports the concept of user authentication generated cryptographic keys consisting of Cryptographic Key Storage and User authenticators.
Cryptographic Key Storage: -
Android stores cryptographic keys using features such as hardware-backed Keystore and Keymaster
User Authenticators: -
Android uses Gatekeeper for password/pin/pattern authentication and Fingerprint for fingerprint authentication.
Biometrics:-
Android versions 9 and higher supports BiometricPrompt API that allows developers to integrate Biometric authentication into their applications in a device. Biometric Based Unlock security are mostly measured on the basis of False Accept Rate (FAR). FAR is a metric that mistakenly accepts randomly chosen incorrect inputs.
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