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/*
* Copyright (c) 2019, 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 8209951
* @summary SIGBUS in com.sun.crypto.provider.CipherBlockChaining
* @run main/othervm/timeout=300 -Xbatch
* compiler.codegen.aes.TestCipherBlockChainingEncrypt
*/
package compiler.codegen.aes;
import java.io.PrintStream;
import java.security.*;
import java.util.Random;
import java.lang.reflect.Method;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
public class TestCipherBlockChainingEncrypt {
private static String algorithm = "PBEWithHmacSHA1AndAES_256";
private static final String PBEPASS = "Hush, it's supposed to be a secret!";
private static final int INPUT_LENGTH = 800;
private static final int[] OFFSETS = {0};
private static final int NUM_PAD_BYTES = 8;
private static final int PBKDF2_ADD_PAD_BYTES = 8;
private static SecretKey key;
private static Cipher ci;
public static void main(String[] args) throws Exception {
for(int i=0; i<5_000; i++) {
if (!(new TestCipherBlockChainingEncrypt().test(args))) {
throw new RuntimeException("TestCipherBlockChainingEncrypt test failed");
}
}
}
public boolean test(String[] args) throws Exception {
boolean result = true;
Provider p = Security.getProvider("SunJCE");
ci = Cipher.getInstance(algorithm, p);
key = SecretKeyFactory.getInstance(algorithm, p).generateSecret(
new PBEKeySpec(PBEPASS.toCharArray()));
// generate input data
byte[] inputText = new byte[INPUT_LENGTH + NUM_PAD_BYTES
+ PBKDF2_ADD_PAD_BYTES];
new Random().nextBytes(inputText);
try {
// Encrypt
execute(Cipher.ENCRYPT_MODE,
inputText,
0,
INPUT_LENGTH);
// PBKDF2 required 16 byte padding
int padLength = NUM_PAD_BYTES + PBKDF2_ADD_PAD_BYTES;
// Decrypt
// Note: inputText is implicitly padded by the above encrypt
// operation so decrypt operation can safely proceed
execute(Cipher.DECRYPT_MODE,
inputText,
0,
INPUT_LENGTH + padLength);
} catch (Exception ex) {
ex.printStackTrace(System.out);
result = false;
}
return result;
}
private void execute(int edMode, byte[] inputText, int offset, int len) {
try {
// init Cipher
if (Cipher.ENCRYPT_MODE == edMode) {
ci.init(Cipher.ENCRYPT_MODE, this.key);
} else {
ci.init(Cipher.DECRYPT_MODE, this.key, ci.getParameters());
}
// First, generate the cipherText at an allocated buffer
byte[] outputText = ci.doFinal(inputText, offset, len);
// Second, generate cipherText again at the same buffer of plainText
int myoff = offset / 2;
int off = ci.update(inputText, offset, len, inputText, myoff);
ci.doFinal(inputText, myoff + off);
// Compare to see whether the two results are the same or not
boolean e = equalsBlock(inputText, myoff, outputText, 0,
outputText.length);
} catch (Exception ex) {
System.out.println("Got unexpected exception for " + algorithm);
ex.printStackTrace(System.out);
}
}
private boolean equalsBlock(byte[] b1, int off1,
byte[] b2, int off2, int len) {
for (int i = off1, j = off2, k = 0; k < len; i++, j++, k++) {
if (b1[i] != b2[j]) {
return false;
}
}
return true;
}
}
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