0N/A/*
2362N/A * Copyright (c) 2006, 2007, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A
0N/A/**
0N/A * @see RSAEncryptDecrypt.sh
0N/A */
0N/A
0N/Aimport javax.crypto.Cipher;
0N/Aimport java.security.GeneralSecurityException;
0N/Aimport java.security.KeyPairGenerator;
0N/Aimport java.security.KeyPair;
0N/Aimport java.security.Key;
0N/A
0N/Apublic class RSAEncryptDecrypt {
0N/A public static final byte[] PLAINTEXT = {1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6};
0N/A
0N/A public static void main(String[] args) throws Exception {
0N/A
0N/A KeyPairGenerator generator =
0N/A KeyPairGenerator.getInstance("RSA", "SunMSCAPI");
0N/A
0N/A KeyPair keyPair = generator.generateKeyPair();
0N/A Key publicKey = keyPair.getPublic();
0N/A Key privateKey = keyPair.getPrivate();
0N/A
0N/A Cipher cipher = null;
0N/A
0N/A try {
0N/A cipher = Cipher.getInstance("RSA", "SunMSCAPI");
0N/A
0N/A } catch (GeneralSecurityException e) {
0N/A System.out.println("Cipher not supported by provider, skipping...");
0N/A return;
0N/A }
0N/A
0N/A cipher.init(Cipher.ENCRYPT_MODE, publicKey);
0N/A displayBytes("Plaintext data:", PLAINTEXT);
0N/A byte[] data = cipher.doFinal(PLAINTEXT);
0N/A displayBytes("Encrypted data:", data);
0N/A
0N/A cipher.init(Cipher.DECRYPT_MODE, privateKey);
0N/A data = cipher.doFinal(data);
0N/A displayBytes("Decrypted data:", data);
0N/A }
0N/A
0N/A private static void displayBytes(String label, byte[] bytes) {
0N/A System.out.println(label + " [length=" + bytes.length + "]");
0N/A for (byte b : bytes) {
0N/A System.out.print("0x" + Integer.toHexString(b & 0xFF) + " ");
0N/A }
0N/A System.out.println();
0N/A }
0N/A}