---
title: errSecOCSPResponderSignatureRequired
framework: security
role: symbol
role_heading: Global Variable
path: security/errsecocsprespondersignaturerequired
---

# errSecOCSPResponderSignatureRequired

The online certificate status protocol (OCSP) responder requires a signature.

## Declaration

```swift
var errSecOCSPResponderSignatureRequired: OSStatus { get }
```