---
title: kSecOIDX509V3CertificateExtensionsCStruct
framework: security
role: symbol
role_heading: Global Variable
path: security/ksecoidx509v3certificateextensionscstruct
---

# kSecOIDX509V3CertificateExtensionsCStruct

## Declaration

```swift
let kSecOIDX509V3CertificateExtensionsCStruct: CFString
```