# SecEncryptTransformCreate(_:_:) Creates an encryption transform object. ``` func SecEncryptTransformCreate(_ keyRef: SecKey, _ error: UnsafeMutablePointer?>?) -> SecTransform ``` ## Parameters `keyRef` The key for the encryption operation `error` A pointer to a . This pointer will be set if an error occurred. This value may be `nil` if you do not want an error returned. ## Return Value A pointer to a new transform or `NULL` on error. In Objective-C, call the function to free this object’s memory when you are done with it. ## Discussion This function creates a transform which encrypts data. --- 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)