---
title: identityReference
framework: networkextension
role: symbol
role_heading: Instance Property
path: networkextension/nednsoverhttpssettings/identityreference
---

# identityReference

A persistent keychain reference to a keychain item containing the certificate and private key components of the DNS client credential.

## Declaration

```swift
var identityReference: Data? { get set }
```

## Discussion

Discussion The keychain item must have the kSecClassIdentity class.