---
title: largeBlob
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/asauthorizationplatformpublickeycredentialassertion/largeblob-29ggs
---

# largeBlob

The request’s binary large object value.

## Declaration

```swift
var largeBlob: ASAuthorizationPublicKeyCredentialLargeBlobAssertionOutput? { get }
```