88 lines
3.0 KiB
Java
88 lines
3.0 KiB
Java
/*
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* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8014374
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* @summary Ensure key wrap/unwrap works using AES/GCM/NoPadding
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* @key randomness
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*/
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import java.io.*;
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import java.security.*;
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import java.security.spec.*;
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import java.util.*;
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import javax.crypto.*;
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import javax.crypto.spec.*;
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public class TestGCMKeyWrap extends UcryptoTest {
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public static void main(String[] args) throws Exception {
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main(new TestGCMKeyWrap(), null);
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}
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public void doTest(Provider p) throws Exception {
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// check if GCM support exists
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try {
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Cipher.getInstance("AES/GCM/NoPadding", p);
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} catch (NoSuchAlgorithmException nsae) {
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System.out.println("Skipping Test due to no GCM support");
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return;
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}
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Random rdm = new Random();
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//init Secret Key
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byte[] keyValue = new byte[16];
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rdm.nextBytes(keyValue);
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SecretKey key = new SecretKeySpec(keyValue, "AES");
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Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding", p);
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cipher.init(Cipher.WRAP_MODE, key);
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byte[] wrappedKey = cipher.wrap(key);
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try { // make sure ISE is thrown if re-using the same key/IV
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wrappedKey = cipher.wrap(key);
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throw new Exception("FAIL: expected ISE not thrown");
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} catch(IllegalStateException ise){
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System.out.println("Expected ISE thrown for re-wrapping");
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}
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//unwrap the key
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AlgorithmParameters params = cipher.getParameters();
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cipher.init(Cipher.UNWRAP_MODE, key, params);
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Key unwrappedKey = cipher.unwrap(wrappedKey, "AES", Cipher.SECRET_KEY);
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//check if we can unwrap second time
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unwrappedKey = cipher.unwrap(wrappedKey, "AES", Cipher.SECRET_KEY);
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// Comparison
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if (!Arrays.equals(key.getEncoded(), unwrappedKey.getEncoded())) {
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throw new Exception("FAIL: keys are not equal");
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} else {
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System.out.println("Passed key equality check");
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}
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}
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}
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