# init(combined:) Creates a sealed box from the given data. ``` init(combined: D) throws where D : DataProtocol ``` ## Parameters `combined` The combined bytes of the tag and ciphertext. --- 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)