| /* |
| * Copyright (c) 2004, 2007, 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 4979126 |
| * @summary Ensure update()/doFinal() matches javadoc description |
| * when ShortBufferException is thrown. |
| * @author Valerie Peng |
| */ |
| import java.util.Arrays; |
| import java.security.*; |
| import java.security.spec.*; |
| import java.math.BigInteger; |
| import javax.crypto.*; |
| import javax.crypto.spec.*; |
| import java.security.Provider; |
| import com.sun.crypto.provider.*; |
| |
| public class TestShortBuffer { |
| private static final String ALGO = "AES"; |
| private static final String[] MODES = { |
| "ECB", "CBC", "PCBC", "CFB16", "OFB8" |
| }; |
| private static final SecretKey KEY = |
| new SecretKeySpec(new byte[16], ALGO); |
| private static byte[] SHORTBUFFER = new byte[1]; |
| |
| private static final byte[] PLAINTEXT = new byte[30]; |
| static { |
| PLAINTEXT[0] = (byte)0x15; |
| }; |
| private Cipher ci = null; |
| private byte[] in = null; |
| private byte[] expected = null; |
| private byte[] out = null; |
| private int outOffset = 0; |
| |
| private TestShortBuffer(Cipher ci) { |
| this.ci = ci; |
| } |
| |
| private void init(byte[] in, byte[] expected) { |
| this.in = (byte[]) in.clone(); |
| this.expected = (byte[]) expected.clone(); |
| this.out = new byte[expected.length]; |
| this.outOffset = 0; |
| } |
| |
| private static void runTest() throws Exception { |
| // Initialization |
| for (int i = 0; i < MODES.length; i++) { |
| System.out.println("===== TESTING MODE " + MODES[i] + " ====="); |
| Cipher ci = Cipher.getInstance(ALGO+"/"+MODES[i]+"/PKCS5Padding", |
| "SunJCE"); |
| TestShortBuffer test = null; |
| int stored = 0; |
| AlgorithmParameters params = null; |
| byte[] cipherText = null; |
| byte[] shortBuffer = new byte[8]; |
| for (int k = 0; k < 2; k++) { |
| byte[] expected = null; |
| switch (k) { |
| case 0: // Encryption |
| System.out.println("Testing with Cipher.ENCRYPT_MODE"); |
| ci.init(Cipher.ENCRYPT_MODE, KEY); |
| cipherText = ci.doFinal(PLAINTEXT); |
| test = new TestShortBuffer(ci); |
| test.init(PLAINTEXT, cipherText); |
| params = ci.getParameters(); |
| break; |
| case 1: // Decryption |
| System.out.println("Testing with Cipher.DECRYPT_MODE"); |
| ci.init(Cipher.DECRYPT_MODE, KEY, params); |
| test = new TestShortBuffer(ci); |
| test.init(cipherText, PLAINTEXT); |
| break; |
| } |
| int offset = 2 + i*5; |
| test.testUpdate(); |
| test.testUpdateWithUpdate(offset); |
| test.testDoFinal(); |
| test.testDoFinalWithUpdate(offset); |
| } |
| } |
| } |
| |
| private void checkOutput() throws Exception { |
| if (!Arrays.equals(out, expected)) { |
| System.out.println("got: " + new BigInteger(out)); |
| System.out.println("expect: " + new BigInteger(expected)); |
| throw new Exception("Generated different outputs"); |
| } |
| } |
| private void testUpdate() throws Exception { |
| outOffset = 0; |
| int stored = 0; |
| try { |
| stored = ci.update(in, 0, in.length, SHORTBUFFER); |
| throw new Exception("Should throw ShortBufferException!"); |
| } catch (ShortBufferException sbe) { |
| System.out.println("Expected SBE thrown...."); |
| // retry with a large-enough buffer according to javadoc |
| stored = ci.update(in, 0, in.length, out); |
| stored = ci.doFinal(out, outOffset += stored); |
| if (out.length != (stored + outOffset)) { |
| throw new Exception("Wrong number of output bytes"); |
| } |
| } |
| checkOutput(); |
| } |
| private void testUpdateWithUpdate(int offset) throws Exception { |
| outOffset = 0; |
| int stored = 0; |
| byte[] out1 = ci.update(in, 0, offset); |
| if (out1 != null) { |
| System.arraycopy(out1, 0, out, 0, out1.length); |
| outOffset += out1.length; |
| } |
| try { |
| stored = ci.update(in, offset, in.length-offset, SHORTBUFFER); |
| throw new Exception("Should throw ShortBufferException!"); |
| } catch (ShortBufferException sbe) { |
| System.out.println("Expected SBE thrown...."); |
| // retry with a large-enough buffer according to javadoc |
| stored = ci.update(in, offset, in.length-offset, |
| out, outOffset); |
| stored = ci.doFinal(out, outOffset+=stored); |
| if (out.length != (stored + outOffset)) { |
| throw new Exception("Wrong number of output bytes"); |
| } |
| } |
| checkOutput(); |
| } |
| private void testDoFinal() throws Exception { |
| outOffset = 0; |
| int stored = 0; |
| try { |
| stored = ci.doFinal(in, 0, in.length, SHORTBUFFER); |
| throw new Exception("Should throw ShortBufferException!"); |
| } catch (ShortBufferException sbe) { |
| System.out.println("Expected SBE thrown...."); |
| // retry with a large-enough buffer according to javadoc |
| stored = ci.doFinal(in, 0, in.length, out, 0); |
| if (out.length != stored) { |
| throw new Exception("Wrong number of output bytes"); |
| } |
| } |
| checkOutput(); |
| } |
| |
| private void testDoFinalWithUpdate(int offset) throws Exception { |
| outOffset = 0; |
| int stored = 0; |
| byte[] out1 = ci.update(in, 0, offset); |
| if (out1 != null) { |
| System.arraycopy(out1, 0, out, 0, out1.length); |
| outOffset += out1.length; |
| } |
| try { |
| stored = ci.doFinal(in, offset, in.length-offset, SHORTBUFFER); |
| throw new Exception("Should throw ShortBufferException!"); |
| } catch (ShortBufferException sbe) { |
| System.out.println("Expected SBE thrown...."); |
| // retry with a large-enough buffer according to javadoc |
| stored = ci.doFinal(in, offset, in.length-offset, |
| out, outOffset); |
| if (out.length != (stored + outOffset)) { |
| throw new Exception("Wrong number of output bytes"); |
| } |
| } |
| checkOutput(); |
| } |
| public static void main(String[] argv) throws Exception { |
| runTest(); |
| System.out.println("Test Passed"); |
| } |
| } |