/*
* Copyright (c) 2007, 2015, 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
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*/
import static java.lang.System.out;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.Provider;
import java.security.Security;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.InvalidKeySpecException;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;
/*
* @test
* @bug 8048604
* @summary This test verifies the assertion "The skip feature of Filter
* streams should be supported." for feature
* CipherInputStream and CipherOutputStream
*/
public class CICOSkipTest {
/**
* Block length.
*/
private static final int BLOCK = 50;
/**
* Saving bytes length.
*/
private static final int SAVE = 45;
/**
* Plain text length.
*/
private static final int PLAIN_TEXT_LENGTH = 800;
/**
* Skip reading byte size. This should be same to BLOCK - SAVE
*/
private static final int DISCARD = BLOCK - SAVE;
private static final String[] ALGOS = {"DES", "DESede", "Blowfish"};
private static final String[] MODES = {"ECB", "CBC", "CFB", "CFB32",
"OFB", "OFB64", "PCBC"};
private static final String[] PADDINGS = {"NoPadding", "Pkcs5Padding"};
private static final String[] PBE_ALGOS = {"PBEWithMD5AndDES",
"PBEWithMD5AndDES/CBC/PKCS5Padding"};
public static void main(String[] args) throws Exception {
// how many kinds of padding mode such as PKCS5padding and NoPadding
for (String algo : ALGOS) {
for (String mode : MODES) {
int padKinds = 1;
if (mode.equalsIgnoreCase("ECB")
|| mode.equalsIgnoreCase("PCBC")
|| mode.equalsIgnoreCase("CBC")) {
padKinds = PADDINGS.length;
}
// PKCS5padding is meaningful only for ECB, CBC, PCBC
for (int k = 0; k < padKinds; k++) {
String info = algo + "/" + mode + "/" + PADDINGS[k];
try {
CipherGenerator cg = new CipherGenerator(algo, mode,
PADDINGS[k]);
for (ReadMethod model : ReadMethod.values()) {
runTest(cg.getPair(), info, model);
}
} catch (LengthLimitException exp) {
// skip this if this key length is larger than what's
// configured in the jce jurisdiction policy files
out.println(exp.getMessage() + " is expected.");
}
}
}
}
for (String pbeAlgo : PBE_ALGOS) {
for (ReadMethod model : ReadMethod.values()) {
System.out.println("Testing Algorithm : " + pbeAlgo
+ " ReadMethod : " + model);
runTest(new CipherGenerator(pbeAlgo).getPair(), pbeAlgo, model);
}
}
}
private static void runTest(Cipher[] pair, String info, ReadMethod whichRead)
throws IOException {
byte[] plainText = TestUtilities.generateBytes(PLAIN_TEXT_LENGTH);
out.println("Testing: " + info + "/" + whichRead);
try (ByteArrayInputStream baInput = new ByteArrayInputStream(plainText);
CipherInputStream ciInput1 = new CipherInputStream(baInput,
pair[0]);
CipherInputStream ciInput2 = new CipherInputStream(ciInput1,
pair[1]);) {
// Skip 5 bytes after read 45 bytes and repeat until finish
// (Read from the input and write to the output using 2 types
// of buffering : byte[] and int)
// So output has size:
// (OVERALL/BLOCK)* SAVE = (800 / 50) * 45 = 720 bytes
int numOfBlocks = plainText.length / BLOCK;
// Output buffer.
byte[] outputText = new byte[numOfBlocks * SAVE];
int index = 0;
for (int i = 0; i < numOfBlocks; i++) {
index = whichRead.readByte(ciInput2, outputText, SAVE, index);
// If available is more than expected discard byte size. Skip
// discard bytes, otherwise try to read discard bytes by read.
if (ciInput2.available() >= DISCARD) {
ciInput2.skip(DISCARD);
} else {
for (int k = 0; k < DISCARD; k++) {
ciInput2.read();
}
}
}
// Verify output is same as input
if (!TestUtilities
.equalsBlockPartial(plainText, outputText, BLOCK, SAVE)) {
throw new RuntimeException("Test failed with compare fail");
}
}
}
}
class CipherGenerator {
/**
* Initialization vector length.
*/
private static final int IV_LENGTH = 8;
private static final String PASSWD = "Sesame!(@#$%^&*)";
private final Cipher[] pair = new Cipher[2];
// For DES/DESede ciphers
CipherGenerator(String algo, String mo, String pad)
throws NoSuchAlgorithmException,
InvalidAlgorithmParameterException, InvalidKeyException,
NoSuchPaddingException, SecurityException, LengthLimitException {
// Do initialization
KeyGenerator kg = KeyGenerator.getInstance(algo);
SecretKey key = kg.generateKey();
if (key.getEncoded().length * 8 > Cipher.getMaxAllowedKeyLength(algo)) {
// skip this if this key length is larger than what's
// configured in the jce jurisdiction policy files
throw new LengthLimitException(
"Skip this test if key length is larger than what's"
+ "configured in the jce jurisdiction policy files");
}
AlgorithmParameterSpec aps = null;
if (!mo.equalsIgnoreCase("ECB")) {
byte[] iv = TestUtilities.generateBytes(IV_LENGTH);
aps = new IvParameterSpec(iv);
}
initCiphers(algo + "/" + mo + "/" + pad, key, aps);
}
// For PBE ciphers
CipherGenerator(String algo) throws NoSuchAlgorithmException,
InvalidAlgorithmParameterException, InvalidKeyException,
NoSuchPaddingException, InvalidKeySpecException {
// Do initialization
byte[] salt = TestUtilities.generateBytes(IV_LENGTH);
int iterCnt = 6;
SecretKeyFactory skf = SecretKeyFactory.getInstance(algo.split("/")[0]);
SecretKey key = skf
.generateSecret(new PBEKeySpec(PASSWD.toCharArray()));
AlgorithmParameterSpec aps = new PBEParameterSpec(salt, iterCnt);
initCiphers(algo, key, aps);
}
private void initCiphers(String algo, SecretKey key,
AlgorithmParameterSpec aps) throws NoSuchAlgorithmException,
NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException {
Provider provider = Security.getProvider("SunJCE");
if (provider == null) {
throw new RuntimeException("SunJCE provider does not exist.");
}
Cipher ci1 = Cipher.getInstance(algo, provider);
ci1.init(Cipher.ENCRYPT_MODE, key, aps);
pair[0] = ci1;
Cipher ci2 = Cipher.getInstance(algo, provider);
ci2.init(Cipher.DECRYPT_MODE, key, aps);
pair[1] = ci2;
}
Cipher[] getPair() {
return pair;
}
}
enum ReadMethod {
// read one byte at a time for save times
READ_ONE_BYTE {
@Override
int readByte(CipherInputStream ciIn2, byte[] outputText, int save,
int index) throws IOException {
for (int j = 0; j < save; j++, index++) {
int buffer0 = ciIn2.read();
if (buffer0 != -1) {
outputText[index] = (byte) buffer0;
} else {
break;
}
}
return index;
}
},
// read a chunk of save bytes if possible
READ_BLOCK {
@Override
int readByte(CipherInputStream ciIn2, byte[] outputText, int save,
int index) throws IOException {
int len1 = ciIn2.read(outputText, index, save);
out.println("Init: index=" + index + ",len=" + len1);
// read more until save bytes
index += len1;
int len2 = 0;
while (len1 != save && len2 != -1) {
len2 = ciIn2.read(outputText, index, save - len1);
out.println("Cont: index=" + index + ",len=" + len2);
len1 += len2;
index += len2;
}
return index;
}
};
abstract int readByte(CipherInputStream ciIn2, byte[] outputText, int save,
int index) throws IOException;
};
class LengthLimitException extends Exception {
public LengthLimitException(String string) {
super(string);
}
}