---
title: kSecPaddingPKCS1Key
framework: security
role: symbol
role_heading: Global Variable
path: security/ksecpaddingpkcs1key
---

# kSecPaddingPKCS1Key

PKCS1 padding will be used when encrypting or decrypting.

## Declaration

```swift
let kSecPaddingPKCS1Key: CFString
```