---
title: kSecCSSigningInformation
framework: security
role: symbol
role_heading: Global Variable
path: security/kseccssigninginformation
---

# kSecCSSigningInformation

Cryptographic signing information.

## Declaration

```swift
var kSecCSSigningInformation: UInt32 { get }
```

## Discussion

Discussion The certificate chain and Cryptographic Message Syntax (CMS) data (if any). For ad-hoc signed code, there are no certificates and the CMS data is empty.