---
title: kSecPolicyKU_NonRepudiation
framework: security
role: symbol
role_heading: Global Variable
path: security/ksecpolicyku_nonrepudiation
---

# kSecPolicyKU_NonRepudiation

If true, the certificate’s key usage must allow it to be used for non-repudiation.

## Declaration

```swift
let kSecPolicyKU_NonRepudiation: CFString
```