1 /* 2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @see PublicKeyInterop.sh 26 */ 27 28 import java.security.*; 29 import java.util.*; 30 import javax.crypto.*; 31 32 import sun.misc.HexDumpEncoder; 33 34 /* 35 * Confirm interoperability of RSA public keys between SunMSCAPI and SunJCE 36 * security providers. 37 */ 38 public class PublicKeyInterop { 39 main(String[] arg)40 public static void main(String[] arg) throws Exception { 41 KeyStore ks = KeyStore.getInstance("Windows-MY"); 42 ks.load(null, null); 43 System.out.println("Loaded keystore: Windows-MY"); 44 45 PublicKey myPuKey = 46 (PublicKey) ks.getCertificate("6888925").getPublicKey(); 47 System.out.println("Public key is a " + myPuKey.getClass().getName()); 48 PrivateKey myPrKey = (PrivateKey) ks.getKey("6888925", null); 49 System.out.println("Private key is a " + myPrKey.getClass().getName()); 50 System.out.println(); 51 52 byte[] plain = new byte[] {0x01, 0x02, 0x03, 0x04, 0x05}; 53 HexDumpEncoder hde = new HexDumpEncoder(); 54 System.out.println("Plaintext:\n" + hde.encode(plain) + "\n"); 55 56 Cipher rsa = Cipher.getInstance("RSA/ECB/PKCS1Padding"); 57 rsa.init(Cipher.ENCRYPT_MODE, myPuKey); 58 byte[] encrypted = rsa.doFinal(plain); 59 System.out.println("Encrypted plaintext using RSA Cipher from " + 60 rsa.getProvider().getName() + " JCE provider\n"); 61 System.out.println(hde.encode(encrypted) + "\n"); 62 63 Cipher rsa2 = Cipher.getInstance("RSA/ECB/PKCS1Padding", "SunMSCAPI"); 64 rsa2.init(Cipher.ENCRYPT_MODE, myPuKey); 65 byte[] encrypted2 = rsa2.doFinal(plain); 66 System.out.println("Encrypted plaintext using RSA Cipher from " + 67 rsa2.getProvider().getName() + " JCE provider\n"); 68 System.out.println(hde.encode(encrypted2) + "\n"); 69 70 Cipher rsa3 = Cipher.getInstance("RSA/ECB/PKCS1Padding", "SunMSCAPI"); 71 rsa3.init(Cipher.DECRYPT_MODE, myPrKey); 72 byte[] decrypted = rsa3.doFinal(encrypted); 73 System.out.println("Decrypted first ciphertext using RSA Cipher from " + 74 rsa3.getProvider().getName() + " JCE provider\n"); 75 System.out.println(hde.encode(decrypted) + "\n"); 76 if (! Arrays.equals(plain, decrypted)) { 77 throw new Exception("First decrypted ciphertext does not match " + 78 "original plaintext"); 79 } 80 81 decrypted = rsa3.doFinal(encrypted2); 82 System.out.println("Decrypted second ciphertext using RSA Cipher from " 83 + rsa3.getProvider().getName() + " JCE provider\n"); 84 System.out.println(hde.encode(decrypted) + "\n"); 85 if (! Arrays.equals(plain, decrypted)) { 86 throw new Exception("Second decrypted ciphertext does not match " + 87 "original plaintext"); 88 } 89 } 90 } 91