---
title: ASAuthorizationProviderExtensionKeyType
framework: authenticationservices
role: symbol
role_heading: Enumeration
path: authenticationservices/asauthorizationproviderextensionkeytype
---

# ASAuthorizationProviderExtensionKeyType

The key types for platform single sign-on.

## Declaration

```swift
enum ASAuthorizationProviderExtensionKeyType
```

## Topics

### Identifying the key types

- [ASAuthorizationProviderExtensionKeyType.userDeviceEncryption](authenticationservices/asauthorizationproviderextensionkeytype/userdeviceencryption.md)
- [ASAuthorizationProviderExtensionKeyType.userDeviceSigning](authenticationservices/asauthorizationproviderextensionkeytype/userdevicesigning.md)
- [ASAuthorizationProviderExtensionKeyType.userSecureEnclaveKey](authenticationservices/asauthorizationproviderextensionkeytype/usersecureenclavekey.md)

### Enumeration Cases

- [ASAuthorizationProviderExtensionKeyType.currentDeviceEncryption](authenticationservices/asauthorizationproviderextensionkeytype/currentdeviceencryption.md)
- [ASAuthorizationProviderExtensionKeyType.currentDeviceSigning](authenticationservices/asauthorizationproviderextensionkeytype/currentdevicesigning.md)
- [ASAuthorizationProviderExtensionKeyType.sharedDeviceEncryption](authenticationservices/asauthorizationproviderextensionkeytype/shareddeviceencryption.md)
- [ASAuthorizationProviderExtensionKeyType.sharedDeviceSigning](authenticationservices/asauthorizationproviderextensionkeytype/shareddevicesigning.md)
- [ASAuthorizationProviderExtensionKeyType.userSmartCard](authenticationservices/asauthorizationproviderextensionkeytype/usersmartcard.md)

### Initializers

- [init(rawValue:)](authenticationservices/asauthorizationproviderextensionkeytype/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Performing authentication

- [isDeviceRegistered](authenticationservices/asauthorizationproviderextensionloginmanager/isdeviceregistered.md)
- [isUserRegistered](authenticationservices/asauthorizationproviderextensionloginmanager/isuserregistered.md)
- [loginConfiguration](authenticationservices/asauthorizationproviderextensionloginmanager/loginconfiguration.md)
- [ssoTokens](authenticationservices/asauthorizationproviderextensionloginmanager/ssotokens.md)
- [identity(for:)](authenticationservices/asauthorizationproviderextensionloginmanager/identity(for:).md)
- [key(for:)](authenticationservices/asauthorizationproviderextensionloginmanager/key(for:).md)
- [userNeedsReauthentication(completion:)](authenticationservices/asauthorizationproviderextensionloginmanager/userneedsreauthentication(completion:).md)