BiometricManager.Authenticators

Added in 1.1.0

Kotlin |Java

public interface 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).

See also
`canAuthenticate`
`setAllowedAuthenticators`

Summary

Constants
`default static final int`	`BIOMETRIC_STRONG = 15` 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.
`default static final int`	`BIOMETRIC_WEAK = 255` 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.
`default static final int`	`DEVICE_CREDENTIAL = 32768` The non-biometric credential used to secure the device (i.e. PIN, pattern, or password).

Constants

BIOMETRIC_STRONG

Added in 1.1.0

default static final int BIOMETRIC_STRONG = 15

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.

BIOMETRIC_WEAK

Added in 1.1.0

default static final int BIOMETRIC_WEAK = 255

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.

DEVICE_CREDENTIAL

Added in 1.1.0

default static final int DEVICE_CREDENTIAL = 32768

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.