# init(subjectNameX509:signatureAlg:signatureOid:cspHand:subjectPublicKey:subjectPrivateKey:challengeString:) ``` init(subjectNameX509: UnsafeMutablePointer!, signatureAlg: CSSM_ALGORITHMS, signatureOid: SecAsn1Oid, cspHand: CSSM_CSP_HANDLE, subjectPublicKey: UnsafePointer!, subjectPrivateKey: UnsafePointer!, challengeString: UnsafePointer!) ``` --- 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)