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# ASAuthorizationSecurityKeyPublicKeyCredentialAssertionRequest

A class that defines the assertion request type for security key credentials.

```
class ASAuthorizationSecurityKeyPublicKeyCredentialAssertionRequest
```

## Overview

Use this class to sign in with an existing credential on a security key.

## Topics

### Getting the properties

[`allowedCredentials`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialAssertionRequest/allowedCredentials)

An array of allowed credentials.

### Instance Properties

[`appID`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialAssertionRequest/appID)


---

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