# init(rawRepresentation:) Creates a P-256 public key for key agreement from a collection of bytes. ``` init(rawRepresentation: D) throws where D : ContiguousBytes ``` ## Parameters `rawRepresentation` A raw representation of the key as a collection of contiguous bytes. --- 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)