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
28import java.security.*;
29import java.util.*;
30import javax.crypto.*;
31
32import sun.security.util.HexDumpEncoder;
33
34/*
35 * Confirm interoperability of RSA public keys between SunMSCAPI and SunJCE
36 * security providers.
37 */
38public class PublicKeyInterop {
39
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