---
title: kSecOIDX509V3CertificateExtensionValue
framework: security
role: symbol
role_heading: Global Variable
path: security/ksecoidx509v3certificateextensionvalue
---

# kSecOIDX509V3CertificateExtensionValue

## Declaration

```swift
let kSecOIDX509V3CertificateExtensionValue: CFString
```