| /* |
| * Copyright (c) 2007, 2015, 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. |
| */ |
| |
| import java.security.AlgorithmParameters; |
| import java.util.Arrays; |
| import javax.crypto.SecretKey; |
| import javax.crypto.Cipher; |
| import javax.crypto.KeyGenerator; |
| import javax.crypto.SealedObject; |
| |
| /* |
| * @test |
| * @bug 8048596 |
| * @summary Check if the seal/unseal feature works properly in AEAD/GCM mode. |
| */ |
| public class SealedObjectTest { |
| |
| private static final String AES = "AES"; |
| private static final String TRANSFORMATION = "AES/GCM/NoPadding"; |
| private static final String PROVIDER = "SunJCE"; |
| private static final int KEY_LENGTH = 128; |
| |
| public static void main(String[] args) throws Exception { |
| doTest(); |
| } |
| |
| /* |
| * Run the test: |
| * - init a cipher with AES/GCM/NoPadding transformation |
| * - seal an object |
| * - check if we can't seal it again with the same key/IV |
| * - unseal the object using different methods of SealedObject class |
| * - check if the original and sealed objects are equal |
| */ |
| static void doTest() throws Exception { |
| // init a secret Key |
| KeyGenerator kg = KeyGenerator.getInstance(AES, PROVIDER); |
| kg.init(KEY_LENGTH); |
| SecretKey key = kg.generateKey(); |
| |
| // initialization |
| Cipher cipher = Cipher.getInstance(TRANSFORMATION, PROVIDER); |
| cipher.init(Cipher.ENCRYPT_MODE, key); |
| AlgorithmParameters params = cipher.getParameters(); |
| |
| // seal an object |
| SealedObject so = new SealedObject(key, cipher); |
| try { |
| // check if we can't seal it again with the same key/IV |
| so = new SealedObject(key, cipher); |
| throw new RuntimeException( |
| "FAILED: expected IllegalStateException hasn't " |
| + "been thrown"); |
| } catch (IllegalStateException ise) { |
| System.out.println("Expected exception when seal it again with" |
| + " the same key/IV: " + ise); |
| } |
| |
| // unseal the object using getObject(Cipher) and compare |
| cipher.init(Cipher.DECRYPT_MODE, key, params); |
| SecretKey unsealedKey = (SecretKey) so.getObject(cipher); |
| assertKeysSame(unsealedKey, key, "SealedObject.getObject(Cipher)"); |
| |
| // unseal the object using getObject(Key) and compare |
| unsealedKey = (SecretKey) so.getObject(key); |
| assertKeysSame(unsealedKey, key, "SealedObject.getObject(Key)"); |
| |
| // unseal the object using getObject(Key, String) and compare |
| unsealedKey = (SecretKey) so.getObject(key, PROVIDER); |
| |
| assertKeysSame(unsealedKey, key, |
| "SealedObject.getObject(Key, String)"); |
| } |
| |
| /** |
| * Compare two SecretKey objects. |
| * |
| * @param key1 first key |
| * @param key2 second key |
| * @param meth method that was used for unsealing the SecretKey object |
| * @return true if key1 and key2 are the same, false otherwise. |
| */ |
| static void assertKeysSame(SecretKey key1, SecretKey key2, String meth) { |
| if (!Arrays.equals(key1.getEncoded(), key2.getEncoded())) { |
| throw new RuntimeException( |
| "FAILED: original and unsealed objects aren't the same for " |
| + meth); |
| } |
| } |
| } |