Added in API level 30

Authenticators

interface Authenticators
android.hardware.biometrics.BiometricManager.Authenticators

Types of authenticators, defined at a level of granularity supported by BiometricManager and BiometricPrompt.

Types may combined via bitwise OR into a single integer representing multiple authenticators (e.g. DEVICE_CREDENTIAL | BIOMETRIC_WEAK).

Summary

Constants
static Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for

static Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for

static Int

The non-biometric credential used to secure the device (i.e., PIN, pattern, or password).

Constants

BIOMETRIC_STRONG

Added in API level 30
static val BIOMETRIC_STRONG: Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for Class 3 (formerly Strong), as defined by the Android CDD.

This corresponds to KeyProperties#AUTH_BIOMETRIC_STRONG during key generation.

Value: 15

BIOMETRIC_WEAK

Added in API level 30
static val BIOMETRIC_WEAK: Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for Class 2 (formerly Weak), as defined by the Android CDD.

Note that this is a superset of BIOMETRIC_STRONG and is defined such that BIOMETRIC_STRONG | BIOMETRIC_WEAK == BIOMETRIC_WEAK.

Value: 255

DEVICE_CREDENTIAL

Added in API level 30
static val DEVICE_CREDENTIAL: Int

The non-biometric credential used to secure the device (i.e., PIN, pattern, or password). This should typically only be used in combination with a biometric auth type, such as BIOMETRIC_WEAK.

This corresponds to KeyProperties#AUTH_DEVICE_CREDENTIAL during key generation.

Value: 32768