---
title: "SecTrustedApplicationSetData(_:_:)"
framework: security
role: symbol
role_heading: Function
path: "security/sectrustedapplicationsetdata(_:_:)"
---

# SecTrustedApplicationSetData(_:_:)

Sets the data of a given trusted app instance.

## Declaration

```swift
func SecTrustedApplicationSetData(_ appRef: SecTrustedApplication, _ data: CFData) -> OSStatus
```

## Parameters

- `appRef`: A trusted application object.
- `data`: A reference to the data to set in the trusted application.

## Return Value

Return Value A result code. See Security Framework Result Codes.

## Discussion

Discussion If you use the SecTrustedApplicationCopyData(_:_:) method to extract the data from a trusted app instance for storage or transmission, you can use the SecTrustedApplicationSetData(_:_:) method to insert that data into a new trusted app. Doing so creates an object that identifies the same app as the original trusted app instance.