# androidx.security.app.authenticator

# androidx.security.app.authenticator

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Kotlin \|[Java](https://developer.android.com/reference/androidx/security/app/authenticator/package-summary "View this page in Java")

## Classes

|-----------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [AppAuthenticator](https://developer.android.com/reference/kotlin/androidx/security/app/authenticator/AppAuthenticator)                       | Provides methods to verify the signing identity of other apps on the device.                                                                                                                                                                             |
| [TestAppAuthenticatorBuilder](https://developer.android.com/reference/kotlin/androidx/security/app/authenticator/TestAppAuthenticatorBuilder) | Builder class that can be used to facilitate the creation of a new [AppAuthenticator](https://developer.android.com/reference/kotlin/androidx/security/app/authenticator/AppAuthenticator) which can be configured to meet the requirements of the test. |

## Exceptions

|-------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [AppAuthenticatorXmlException](https://developer.android.com/reference/kotlin/androidx/security/app/authenticator/AppAuthenticatorXmlException) | This `Exception` is thrown when the XML configuration file is not in the proper format to instantiate a new [AppAuthenticator](https://developer.android.com/reference/kotlin/androidx/security/app/authenticator/AppAuthenticator). |