# SecureEnclave.MLDSA87.PrivateKey ``` struct PrivateKey ``` ## Topics ### Initializers [`init(accessControl: SecAccessControl) throws`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/init(accessControl:)) [`init(accessControl: SecAccessControl, authenticationContext: LAContext?) throws`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/init(accessControl:authenticationContext:)) [`init(dataRepresentation: D) throws`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/init(dataRepresentation:)) [`init(dataRepresentation: D, authenticationContext: LAContext?) throws`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/init(dataRepresentation:authenticationContext:)) ### Instance Properties [`let dataRepresentation: Data`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/dataRepresentation) A data representation of the private key. [`let publicKey: MLDSA87.PublicKey`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/publicKey) The corresponding public key. ### Instance Methods [`func signature(for: D) throws -> Data`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/signature(for:)) Generates a MLDSA87 signature [`func signature(for: D, context: C) throws -> Data`](/documentation/CryptoKit/SecureEnclave/MLDSA87/PrivateKey/signature(for:context:)) Generates a MLDSA87 signature, with context ## Relationships ### Conforms To [`Sendable`](/documentation/Swift/Sendable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) --- 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)