| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8012637 |
| * @library ../UTIL |
| * @build TestUtil |
| * @run main TestCICOWithGCM |
| * @summary Test CipherInputStream/OutputStream with AES GCM mode. |
| * @author Valerie Peng |
| * @key randomness |
| */ |
| |
| import java.security.*; |
| import javax.crypto.*; |
| import javax.crypto.spec.*; |
| import java.math.*; |
| import java.io.*; |
| |
| import java.util.*; |
| |
| public class TestCICOWithGCM { |
| public static void main(String[] args) throws Exception { |
| //init Secret Key |
| KeyGenerator kg = KeyGenerator.getInstance("AES", "SunJCE"); |
| kg.init(128); |
| SecretKey key = kg.generateKey(); |
| |
| //do initialization of the plainText |
| byte[] plainText = new byte[800]; |
| Random rdm = new Random(); |
| rdm.nextBytes(plainText); |
| |
| //init ciphers |
| Cipher encCipher = Cipher.getInstance("AES/GCM/NoPadding", "SunJCE"); |
| encCipher.init(Cipher.ENCRYPT_MODE, key); |
| Cipher decCipher = Cipher.getInstance("AES/GCM/NoPadding", "SunJCE"); |
| decCipher.init(Cipher.DECRYPT_MODE, key, encCipher.getParameters()); |
| |
| //init cipher streams |
| ByteArrayInputStream baInput = new ByteArrayInputStream(plainText); |
| CipherInputStream ciInput = new CipherInputStream(baInput, encCipher); |
| ByteArrayOutputStream baOutput = new ByteArrayOutputStream(); |
| CipherOutputStream ciOutput = new CipherOutputStream(baOutput, decCipher); |
| |
| //do test |
| byte[] buffer = new byte[800]; |
| int len = ciInput.read(buffer); |
| System.out.println("read " + len + " bytes from input buffer"); |
| |
| while (len != -1) { |
| ciOutput.write(buffer, 0, len); |
| System.out.println("wite " + len + " bytes to output buffer"); |
| len = ciInput.read(buffer); |
| if (len != -1) { |
| System.out.println("read " + len + " bytes from input buffer"); |
| } else { |
| System.out.println("finished reading"); |
| } |
| } |
| |
| ciOutput.flush(); |
| ciInput.close(); |
| ciOutput.close(); |
| byte[] recovered = baOutput.toByteArray(); |
| System.out.println("recovered " + recovered.length + " bytes"); |
| if (!Arrays.equals(plainText, recovered)) { |
| throw new RuntimeException("diff check failed!"); |
| } else { |
| System.out.println("diff check passed"); |
| } |
| } |
| } |