---
title: signature
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/asauthorizationpublickeycredentialassertion/signature
---

# signature

The signature for the assertion.

## Declaration

```swift
var signature: Data! { get }
```

## See Also

### Getting the properties

- [userID](authenticationservices/asauthorizationpublickeycredentialassertion/userid.md)
- [rawAuthenticatorData](authenticationservices/asauthorizationpublickeycredentialassertion/rawauthenticatordata.md)