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/*
* 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.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.spec.AlgorithmParameterSpec;
import java.util.Random;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
/**
* @test
* @bug 8043836
* @summary Test AES ciphers with different modes and padding schemes (ECB mode
* doesn't use IV). The test tries 3 different read methods of
* CipherInputStream.
* @key randomness
*/
public class CICO {
private static final String ALGORITHM = "aEs";
private static final String[] MODES = { "PCBC", "ECb", "cbC", "cFB",
"cFB24", "cFB32", "Cfb40", "CFB72", "OfB", "OfB20", "OfB48",
"OfB56", "OFB64", "OFB112", "CFB112", "pCbC" };
private static final String[] PADDING = { "noPadding", "pkcs5padding" };
private static final String PROVIDER = "SunJCE";
private static final int NREADS = 3;
private static final int KEY_LENGTH = 128;
private final byte[] plainText = new byte[1600000];
public static void main(String argv[]) throws Exception {
CICO test = new CICO();
for (String mode : MODES) {
for (String pad : PADDING) {
for (int m = 0; m < NREADS; m++) {
test.runTest(ALGORITHM, mode, pad, m);
}
}
}
}
public void runTest(String algo, String mo, String pad, int whichRead) throws Exception {
Cipher ci1 = null;
Cipher ci2 = null;
byte[] iv = null;
AlgorithmParameterSpec aps = null;
SecretKey key = null;
try {
// Do initialization
Random rdm = new Random();
rdm.nextBytes(plainText);
KeyGenerator kg = KeyGenerator.getInstance(algo, PROVIDER);
if (!kg.getAlgorithm().equals(algo)) {
throw new RuntimeException("Unexpected algorithm <"
+ kg.getAlgorithm() + ">, expected value is <" + algo
+ ">");
}
kg.init(KEY_LENGTH);
key = kg.generateKey();
ci1 = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER);
if (mo.equalsIgnoreCase("ECB")) {
ci1.init(Cipher.ENCRYPT_MODE, key);
} else {
ci1.init(Cipher.ENCRYPT_MODE, key, aps);
}
if (!mo.equalsIgnoreCase("ECB")) {
iv = ci1.getIV();
aps = new IvParameterSpec(iv);
} else {
aps = null;
}
ci2 = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER);
if (mo.equalsIgnoreCase("ECB")) {
ci2.init(Cipher.DECRYPT_MODE, key);
} else {
ci2.init(Cipher.DECRYPT_MODE, key, aps);
}
ByteArrayInputStream baInput = new ByteArrayInputStream(plainText);
ByteArrayOutputStream baOutput = new ByteArrayOutputStream();
try (CipherInputStream ciInput = new CipherInputStream(baInput, ci1);
CipherOutputStream ciOutput = new CipherOutputStream(
baOutput, ci2)) {
// According to specification, CipherInputStream does not support the
// mark and reset methods
if (ciInput.markSupported()) {
throw new RuntimeException(
"CipherInputStream unexpectedly supports the mark and reset methods");
}
// Read from the input and write to the output using 2 types
// of buffering : byte[] and int
switch (whichRead) {
case 0:
int buffer0 = ciInput.read();
while (buffer0 != -1) {
ciOutput.write(buffer0);
buffer0 = ciInput.read();
}
break;
case 1:
byte[] buffer1 = new byte[20];
int len1 = ciInput.read(buffer1);
while (len1 != -1) {
ciOutput.write(buffer1, 0, len1);
len1 = ciInput.read(buffer1);
}
break;
case NREADS - 1:
byte[] buffer2 = new byte[ci1
.getOutputSize(plainText.length)];
int offset2 = 0;
int len2 = 0;
while (len2 != -1) {
len2 = ciInput.read(buffer2, offset2, buffer2.length
- offset2);
offset2 += len2;
}
ciOutput.write(buffer2, 0, buffer2.length);
break;
}
}
// Get the output
byte[] recoveredText = new byte[baOutput.size()];
recoveredText = baOutput.toByteArray();
if (!java.util.Arrays.equals(plainText, recoveredText)) {
throw new RuntimeException(
"Original text is not equal with recovered text, with "
+ algo + "/" + mo + "/" + pad + "/" + whichRead);
}
// Compare input and output
} catch (NoSuchAlgorithmException e) {
//OFB20 is for negative testing
if (!mo.equalsIgnoreCase("OFB20")) {
System.out.println("Unexpected NoSuchAlgorithmException with "
+ algo + "/" + mo + "/" + pad + "/" + whichRead);
throw new RuntimeException("Test failed!");
}
} catch (IOException | NoSuchProviderException | NoSuchPaddingException
| InvalidKeyException | InvalidAlgorithmParameterException e) {
System.out.println("Unexpected Exception with "
+ algo + "/" + mo + "/" + pad + "/" + whichRead);
System.out.println("Test failed!");
throw e;
}
}
}
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