# init(derRepresentation:) Creates a P-384 digital signature from a Distinguished Encoding Rules (DER) encoded representation. ``` init(derRepresentation: D) throws where D : DataProtocol ``` ## Parameters `derRepresentation` The DER-encoded representation of the signature. --- 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)