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(Swift) Export a Certificate's Private Key to Various FormatsLoads a digital certificate and private key from a PFX file (also known as PKCS#12) and exports the private key to various formats: (1) PKCS8 Encrypted, (2) PKCS8 Encrypted PEM, (3) PKCS8 unencrypted, (4) PKCS8 PEM unencrypted, (5) RSA DER unencrypted, (6) RSA PEM unencrypted, (7) XML.
func chilkatTest() { let cert = CkoCert()! // Load from the PFX file var pfxFilename: String? = "/Users/chilkat/testData/pfx/chilkat_ssl_pwd_is_test.pfx" var pfxPassword: String? = "test" // A PFX typically contains certificates in the chain of authentication. // The Chilkat cert object will choose the certificate w/ // private key farthest from the root authority cert. // To access all the certificates in a PFX, use the // Chilkat certificate store object instead. var success: Bool = cert.loadPfxFile(pfxFilename, password: pfxPassword) if success != true { print("\(cert.lastErrorText!)") return } // Get the private key... var privKey: CkoPrivateKey? privKey = cert.exportPrivateKey() if cert.lastMethodSuccess == false { print("\(cert.lastErrorText!)") return } // Export to various formats: var password: String? = "secret" var path: String? // PKCS8 Encrypted DER path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.der" success = privKey!.savePkcs8EncryptedFile(password, path: path) if success != true { print("\(privKey!.lastErrorText!)") privKey = nil return } // PKCS8 Encrypted PEM path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.pem" success = privKey!.savePkcs8EncryptedPemFile(password, path: path) if success != true { print("\(privKey!.lastErrorText!)") privKey = nil return } // PKCS8 Unencrypted DER path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8.der" success = privKey!.savePkcs8File(path) if success != true { print("\(privKey!.lastErrorText!)") privKey = nil return } // PKCS8 Unencrypted PEM path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8.pem" success = privKey!.savePkcs8PemFile(path) if success != true { print("\(privKey!.lastErrorText!)") privKey = nil return } // RSA DER (unencrypted) path = "/Users/chilkat/testData/privkeys/chilkat_rsa.der" success = privKey!.savePkcs1File(path) if success != true { print("\(privKey!.lastErrorText!)") privKey = nil return } // RSA PEM (unencrypted) path = "/Users/chilkat/testData/privkeys/chilkat_rsa.pem" success = privKey!.savePemFile(path) if success != true { print("\(privKey!.lastErrorText!)") privKey = nil return } // XML (unencrypted) path = "/Users/chilkat/testData/privkeys/chilkat.xml" success = privKey!.saveXmlFile(path) if success != true { print("\(privKey!.lastErrorText!)") privKey = nil return } privKey = nil print("Private key exported to all formats.") } |
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