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# kSecReturnPersistentRef

A key whose value is a Boolean indicating whether or not to return a persistent reference to an item.

```
let kSecReturnPersistentRef: CFString
```

## Discussion

The corresponding value is of type <doc://com.apple.documentation/documentation/CoreFoundation/CFBoolean>. A value of <doc://com.apple.documentation/documentation/CoreFoundation/kCFBooleanTrue> indicates that a persistent reference to an item should be returned as a <doc://com.apple.documentation/documentation/CoreFoundation/CFData> object. Unlike normal references, a persistent reference may be stored on disk or passed between processes.

---

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