# MLDSA65.PrivateKey The private key for MLDSA65. ``` struct PrivateKey ``` ## Topics ### Creating a private key [`init() throws`](/documentation/CryptoKit/MLDSA65/PrivateKey/init()) Creates a random MLDSA65 private key. [`init(integrityCheckedRepresentation: D) throws`](/documentation/CryptoKit/MLDSA65/PrivateKey/init(integrityCheckedRepresentation:)) Initializes a private key from an integrity-checked data representation. [`init(seedRepresentation: D, publicKey: MLDSA65.PublicKey?) throws`](/documentation/CryptoKit/MLDSA65/PrivateKey/init(seedRepresentation:publicKey:)) Initializes a private key from the seed representation. ### Inspecting a private key’s properties [`var integrityCheckedRepresentation: Data`](/documentation/CryptoKit/MLDSA65/PrivateKey/integrityCheckedRepresentation) The integrity-checked data representation of the private key. [`var publicKey: MLDSA65.PublicKey`](/documentation/CryptoKit/MLDSA65/PrivateKey/publicKey) The associated public key. [`var seedRepresentation: Data`](/documentation/CryptoKit/MLDSA65/PrivateKey/seedRepresentation) The seed representation of the private key. ### Signing data [`func signature(for: D) throws -> Data`](/documentation/CryptoKit/MLDSA65/PrivateKey/signature(for:)) Generates a MLDSA65 signature. [`func signature(for: D, context: C) throws -> Data`](/documentation/CryptoKit/MLDSA65/PrivateKey/signature(for:context:)) Generates a MLDSA65 signature, with context. ## Relationships ### Conforms To [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Sendable`](/documentation/Swift/Sendable) --- 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)