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# android.security

Provides access to a few facilities of the Android security subsystems.

## Interfaces

KeyChainAliasCallback | The KeyChainAliasCallback is the callback for `KeyChain.choosePrivateKeyAlias(Activity, KeyChainAliasCallback, String[], Principal[], Uri, String)`.

## Classes

AppUriAuthenticationPolicy | The app-URI authentication policy is set by the credential management app.
AppUriAuthenticationPolicy.Builder | Builder class for `AppUriAuthenticationPolicy` objects.
AttestedKeyPair | The `AttestedKeyPair` class contains a `KeyPair` instance of keys generated by Keystore and owned by KeyChain, as well as an attestation record for the key.
ConfirmationCallback | Callback class used when signaling that a prompt is no longer being presented.
ConfirmationPrompt | Class used for displaying confirmation prompts.
ConfirmationPrompt.Builder | A builder that collects arguments, to be shown on the system-provided confirmation prompt.
FileIntegrityManager | This class provides access to file integrity related operations.
KeyChain | The `KeyChain` class provides access to private keys and their corresponding certificate chains in credential storage.
KeyPairGeneratorSpec | This class is deprecated. Use `KeyGenParameterSpec` instead.
KeyPairGeneratorSpec.Builder | This class is deprecated. Use `KeyGenParameterSpec.Builder` instead.
KeyStoreParameter | This class is deprecated. Use `KeyProtection` instead.
KeyStoreParameter.Builder | This class is deprecated. Use `KeyProtection.Builder` instead.
NetworkSecurityPolicy | Network security policy.

## Exceptions

ConfirmationAlreadyPresentingException | This exception is thrown when presenting a prompt fails because another prompt is already being presented.
ConfirmationNotAvailableException | This exception is thrown when presenting a prompt fails because the the environment lacks facilities for showing confirmations.
KeyChainException | Thrown on problems accessing the `KeyChain`.

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