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# ASAuthorizationPublicKeyCredentialLargeBlobRegistrationOutput

The result of the large binary object support check, resulting from a passkey registration
response.

```
struct ASAuthorizationPublicKeyCredentialLargeBlobRegistrationOutput
```

## Overview

This type indicates whether the passkey provider that manages the passkey
supports the `largeBlob` extension.
The design of this type mirrors the response in the WebAuthn specification.

## Topics

### Accessing output properties

[`isSupported`](/documentation/AuthenticationServices/ASAuthorizationPublicKeyCredentialLargeBlobRegistrationOutput-swift.struct/isSupported)

A Boolean value that indicates support for the large binary object extension.

### Using defined support values

[`supported`](/documentation/AuthenticationServices/ASAuthorizationPublicKeyCredentialLargeBlobRegistrationOutput-swift.struct/supported)

[`unsupported`](/documentation/AuthenticationServices/ASAuthorizationPublicKeyCredentialLargeBlobRegistrationOutput-swift.struct/unsupported)


---

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