diff -r 70df4064ebfc -r e0831270085f jdk/test/com/sun/crypto/provider/Cipher/AES/TestNonexpanding.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/com/sun/crypto/provider/Cipher/AES/TestNonexpanding.java Fri Aug 08 17:47:50 2014 +0000 @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2014, 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.InvalidKeyException; +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.spec.InvalidParameterSpecException; +import java.util.Random; +import javax.crypto.BadPaddingException; +import javax.crypto.Cipher; +import javax.crypto.IllegalBlockSizeException; +import javax.crypto.KeyGenerator; +import javax.crypto.NoSuchPaddingException; +import javax.crypto.SecretKey; +import javax.crypto.ShortBufferException; +import javax.crypto.spec.GCMParameterSpec; + +/** + * @test + * @bug 8043836 + * @summary Test AES encryption with no padding. Expect the original data length + * is the same as the encrypted data. + */ +public class TestNonexpanding { + + private static final String ALGORITHM = "AES"; + private static final String PROVIDER = "SunJCE"; + private static final String[] MODES = { "ECb", "CbC", "OFB", "OFB150", + "cFB", "CFB7", "cFB8", "cFB16", "cFB24", "cFB32", "Cfb40", "cfB48", + "cfB56", "cfB64", "cfB72", "cfB80", "cfB88", "cfB96", "cfb104", + "cfB112", "cfB120", "GCM" }; + private static final String PADDING = "NoPadding"; + private static final int KEY_LENGTH = 128; + + public static void main(String argv[]) throws Exception { + TestNonexpanding test = new TestNonexpanding(); + for (String mode : MODES) { + test.runTest(ALGORITHM, mode, PADDING); + } + } + + public void runTest(String algo, String mo, String pad) throws Exception { + Cipher ci = null; + SecretKey key = null; + try { + // Initialization + Random rdm = new Random(); + byte[] plainText = new byte[128]; + rdm.nextBytes(plainText); + + ci = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER); + + KeyGenerator kg = KeyGenerator.getInstance(algo, PROVIDER); + kg.init(KEY_LENGTH); + key = kg.generateKey(); + + // encrypt + ci.init(Cipher.ENCRYPT_MODE, key); + byte[] cipherText = new byte[ci.getOutputSize(plainText.length)]; + int offset = ci.update(plainText, 0, plainText.length, cipherText, + 0); + ci.doFinal(cipherText, offset); + + // Comparison + if (!(plainText.length == cipherText.length)) { + // The result of encryption in GCM is a combination of an + // authentication tag and cipher text. + if (mo.equalsIgnoreCase("GCM")) { + GCMParameterSpec spec = ci.getParameters().getParameterSpec(GCMParameterSpec.class); + int cipherTextLength = cipherText.length - spec.getTLen() + / 8; + if (plainText.length == cipherTextLength) { + return; + } + } + System.out.println("Original length: " + plainText.length); + System.out.println("Cipher text length: " + cipherText.length); + throw new RuntimeException("Test failed!"); + } + } catch (NoSuchAlgorithmException e) { + //CFB7 and OFB150 are for negative testing + if (!mo.equalsIgnoreCase("CFB7") && !mo.equalsIgnoreCase("OFB150")) { + System.out.println("Unexpected NoSuchAlgorithmException with mode: " + + mo); + throw new RuntimeException("Test failed!"); + } + } catch ( NoSuchProviderException | NoSuchPaddingException + | InvalidKeyException | InvalidParameterSpecException + | ShortBufferException | IllegalBlockSizeException + | BadPaddingException e) { + System.out.println("Test failed!"); + throw e; + } + } +}