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# ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor

An object that holds public key credential transport information.

```
class ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor
```

## Overview

This class ties together a credential and its corresponding transport types (USB, NFC, Bluetooth, or all of them).

## Topics

### Creating the descriptor

[`init(credentialID:transports:)`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/init(credentialID:transports:))

Creates the object with the credential ID and the array of transports.

[`transports`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/transports)

The array of transport types.

[`ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor.Transport`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/Transport)

A structure that defines the security key credential transport type.


---

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