1 /*
2 * Copyright (c) 2011, 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
40 public static void main(String[] arg) throws Exception {
41 PrivateKey privKey = null;
42 Certificate cert = null;
43 KeyStore ks = KeyStore.getInstance("Windows-MY");
44 ks.load(null, null);
45 System.out.println("Loaded keystore: Windows-MY");
46
47 PublicKey myPuKey =
48 (PublicKey) ks.getCertificate("6888925").getPublicKey();
49 System.out.println("Public key is a " + myPuKey.getClass().getName());
50 PrivateKey myPrKey = (PrivateKey) ks.getKey("6888925", null);
51 System.out.println("Private key is a " + myPrKey.getClass().getName());
52 System.out.println();
53
54 byte[] plain = new byte[] {0x01, 0x02, 0x03, 0x04, 0x05};
55 HexDumpEncoder hde = new HexDumpEncoder();
56 System.out.println("Plaintext:\n" + hde.encode(plain) + "\n");
57
58 Cipher rsa = Cipher.getInstance("RSA/ECB/PKCS1Padding");
59 rsa.init(Cipher.ENCRYPT_MODE, myPuKey);
60 byte[] encrypted = rsa.doFinal(plain);
61 System.out.println("Encrypted plaintext using RSA Cipher from " +
62 rsa.getProvider().getName() + " JCE provider\n");
63 System.out.println(hde.encode(encrypted) + "\n");
64
65 Cipher rsa2 = Cipher.getInstance("RSA/ECB/PKCS1Padding", "SunMSCAPI");
66 rsa2.init(Cipher.ENCRYPT_MODE, myPuKey);
67 byte[] encrypted2 = rsa2.doFinal(plain);
68 System.out.println("Encrypted plaintext using RSA Cipher from " +
69 rsa2.getProvider().getName() + " JCE provider\n");
70 System.out.println(hde.encode(encrypted2) + "\n");
71
72 Cipher rsa3 = Cipher.getInstance("RSA/ECB/PKCS1Padding", "SunMSCAPI");
73 rsa3.init(Cipher.DECRYPT_MODE, myPrKey);
74 byte[] decrypted = rsa3.doFinal(encrypted);
75 System.out.println("Decrypted first ciphertext using RSA Cipher from " +
76 rsa3.getProvider().getName() + " JCE provider\n");
77 System.out.println(hde.encode(decrypted) + "\n");
78 if (! Arrays.equals(plain, decrypted)) {
79 throw new Exception("First decrypted ciphertext does not match " +
80 "original plaintext");
81 }
82
83 decrypted = rsa3.doFinal(encrypted2);
84 System.out.println("Decrypted second ciphertext using RSA Cipher from "
85 + rsa3.getProvider().getName() + " JCE provider\n");
86 System.out.println(hde.encode(decrypted) + "\n");
87 if (! Arrays.equals(plain, decrypted)) {
88 throw new Exception("Second decrypted ciphertext does not match " +
89 "original plaintext");
90 }
91 }
92 }