<!--
{
  "availability" : [
    "iOS: 26.4.0 -",
    "iPadOS: 26.4.0 -",
    "macCatalyst: 26.4.0 -",
    "macOS: 26.4.0 -",
    "visionOS: 26.4.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AuthenticationServices",
  "identifier" : "/documentation/AuthenticationServices/ASImportableFIDO2LargeBlob",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "Authentication Services"
    ],
    "preciseIdentifier" : "s:22AuthenticationServices26ASImportableFIDO2LargeBlobV"
  },
  "title" : "ASImportableFIDO2LargeBlob"
}
-->

# ASImportableFIDO2LargeBlob

A representation of FIDO2 LargeBlob extensions as defined in CXF.

```
struct ASImportableFIDO2LargeBlob
```

## Topics

### Initializers

[`init(uncompressedSize: Int, data: Data)`](/documentation/AuthenticationServices/ASImportableFIDO2LargeBlob/init(uncompressedSize:data:))

### Instance Properties

[`var data: Data`](/documentation/AuthenticationServices/ASImportableFIDO2LargeBlob/data)

The contents of the large blob value which has been DEFLATE compressed.

[`var uncompressedSize: Int`](/documentation/AuthenticationServices/ASImportableFIDO2LargeBlob/uncompressedSize)

The claimed uncompressed size of stored data.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Equatable`](/documentation/Swift/Equatable)

[`Sendable`](/documentation/Swift/Sendable)

[`Hashable`](/documentation/Swift/Hashable)

[`Decodable`](/documentation/Swift/Decodable)

[`Encodable`](/documentation/Swift/Encodable)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)