# SecTaskCopySigningIdentifier(_:_:) Returns the value of the code signing identifier. ``` func SecTaskCopySigningIdentifier(_ task: SecTask, _ error: UnsafeMutablePointer?>?) -> CFString? ``` ## Parameters `task` The task whose code signing identifier you want. `error` A pointer that the function uses to provide an error object with details if an error occurs. The caller becomes responsible for the object’s memory. Pass `NULL` to ignore the error. ## Return Value A string representing the code signing identifier for the task, or `NULL` on error. In Objective-C, call the function to free this string’s memory when you are done with it. ## Discussion --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)