---
title: ASPasskeyRegistrationCredentialExtensionOutput
framework: authenticationservices
role: symbol
role_heading: Structure
path: authenticationservices/aspasskeyregistrationcredentialextensionoutput-swift.struct
---

# ASPasskeyRegistrationCredentialExtensionOutput

A type that encapsulates output for various WebAuthn extensions during passkey assertion.

## Declaration

```swift
struct ASPasskeyRegistrationCredentialExtensionOutput
```

## Topics

### Creating an extension output instance

- [init(largeBlob:prf:)](authenticationservices/aspasskeyregistrationcredentialextensionoutput-swift.struct/init(largeblob:prf:).md)

### Inspecting properties

- [largeBlob](authenticationservices/aspasskeyregistrationcredentialextensionoutput-swift.struct/largeblob.md)
- [ASAuthorizationPublicKeyCredentialLargeBlobRegistrationOutput](authenticationservices/asauthorizationpublickeycredentiallargeblobregistrationoutput-swift.struct.md)
- [prf](authenticationservices/aspasskeyregistrationcredentialextensionoutput-swift.struct/prf.md)
- [ASAuthorizationPublicKeyCredentialPRFRegistrationOutput](authenticationservices/asauthorizationpublickeycredentialprfregistrationoutput-swift.struct.md)

## See Also

### Accessing extension output

- [extensionOutput](authenticationservices/aspasskeyregistrationcredential/extensionoutput-2lf9m.md)