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# ASAuthorizationPublicKeyCredentialAssertion

An interface for establishing a public key-based assertion.

```
protocol ASAuthorizationPublicKeyCredentialAssertion : ASPublicKeyCredential
```

## Overview

Both [`ASAuthorizationSecurityKeyPublicKeyCredentialAssertion`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialAssertion) and [`ASAuthorizationPlatformPublicKeyCredentialAssertion`](/documentation/AuthenticationServices/ASAuthorizationPlatformPublicKeyCredentialAssertion) adhere to this interface.

## Topics

### Getting the properties

[`signature`](/documentation/AuthenticationServices/ASAuthorizationPublicKeyCredentialAssertion/signature)

The signature for the assertion.

[`userID`](/documentation/AuthenticationServices/ASAuthorizationPublicKeyCredentialAssertion/userID)

A user identifier for the assertion.

[`rawAuthenticatorData`](/documentation/AuthenticationServices/ASAuthorizationPublicKeyCredentialAssertion/rawAuthenticatorData)

A byte sequence that contains additional information about the credential.


---

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