---
title: kSecAttrCanUnwrap
framework: security
role: symbol
role_heading: Global Variable
path: security/ksecattrcanunwrap
---

# kSecAttrCanUnwrap

A key whose value is a Boolean that indicates whether the cryptographic key can be used for unwrapping.

## Declaration

```swift
let kSecAttrCanUnwrap: CFString
```

## Discussion

Discussion The corresponding value is of type CFBoolean and indicates whether this cryptographic key can be used to unwrap another key. On key creation, if not explicitly specified, this attribute defaults to kCFBooleanTrue for private keys and kCFBooleanFalse for public keys.