/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Vera Y. Petrashkova
*/
package org.apache.harmony.crypto.tests.javax.crypto;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidParameterException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.SecureRandom;
import java.security.spec.AlgorithmParameterSpec;
import javax.crypto.KeyGenerator;
import javax.crypto.KeyGeneratorSpi;
import javax.crypto.SecretKey;
import org.apache.harmony.crypto.tests.support.MyKeyGeneratorSpi;
import org.apache.harmony.security.tests.support.SpiEngUtils;
import junit.framework.TestCase;
/**
* Tests for KeyGenerator constructor and methods
*
*/
public class KeyGeneratorTest extends TestCase {
public static final String srvKeyGenerator = "KeyGenerator";
public static final String validAlgorithmsKeyGenerator [] =
{"DESede", "DES", "Blowfish", "AES", "HmacMD5"};
private static final int [] validKeySizes = { 168, 56, 56, 256, 56};
private static int defaultKeySize = -1;
private static String defaultAlgorithm = null;
private static String defaultProviderName = null;
private static Provider defaultProvider = null;
private static boolean DEFSupported = false;
private static final String NotSupportMsg = "There is no suitable provider for KeyGenerator";
private static final String[] invalidValues = SpiEngUtils.invalidValues;
private static String[] validValues = new String[3];
static {
for (int i = 0; i < validAlgorithmsKeyGenerator.length; i++) {
defaultProvider = SpiEngUtils.isSupport(validAlgorithmsKeyGenerator[i],
srvKeyGenerator);
DEFSupported = (defaultProvider != null);
if (DEFSupported) {
defaultAlgorithm = validAlgorithmsKeyGenerator[i];
defaultKeySize = validKeySizes[i];
defaultProviderName = defaultProvider.getName();
validValues[0] = defaultAlgorithm;
validValues[1] = defaultAlgorithm.toUpperCase();
validValues[2] = defaultAlgorithm.toLowerCase();
break;
}
}
}
private KeyGenerator[] createKGs() throws Exception {
if (!DEFSupported) {
fail(NotSupportMsg);
}
KeyGenerator [] kg = new KeyGenerator[3];
kg[0] = KeyGenerator.getInstance(defaultAlgorithm);
kg[1] = KeyGenerator.getInstance(defaultAlgorithm, defaultProvider);
kg[2] = KeyGenerator.getInstance(defaultAlgorithm, defaultProviderName);
return kg;
}
/**
* Test for <code>KeyGenerator</code> constructor Assertion: returns
* KeyGenerator object
*/
public void testKeyGenerator() throws NoSuchAlgorithmException,
InvalidAlgorithmParameterException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
KeyGeneratorSpi spi = new MyKeyGeneratorSpi();
KeyGenerator keyG = new myKeyGenerator(spi, defaultProvider,
defaultAlgorithm);
assertEquals("Incorrect algorithm", keyG.getAlgorithm(),
defaultAlgorithm);
assertEquals("Incorrect provider", keyG.getProvider(), defaultProvider);
AlgorithmParameterSpec params = null;
int keysize = 0;
try {
keyG.init(params, null);
fail("InvalidAlgorithmParameterException must be thrown");
} catch (InvalidAlgorithmParameterException e) {
}
try {
keyG.init(keysize, null);
fail("IllegalArgumentException must be thrown");
} catch (IllegalArgumentException e) {
}
keyG = new myKeyGenerator(null, null, null);
assertNull("Algorithm must be null", keyG.getAlgorithm());
assertNull("Provider must be null", keyG.getProvider());
try {
keyG.init(params, null);
fail("NullPointerException must be thrown");
} catch (NullPointerException e) {
}
try {
keyG.init(keysize, null);
fail("NullPointerException or InvalidParameterException must be thrown");
} catch (InvalidParameterException e) {
} catch (NullPointerException e) {
}
}
/*
* Test for <code> getInstance(String algorithm) </code> method Assertions:
* throws NullPointerException when algorithm is null throws
* NoSuchAlgorithmException when algorithm isnot available
*/
public void testGetInstanceString01() throws NoSuchAlgorithmException {
try {
KeyGenerator.getInstance(null);
fail("NullPointerException or NoSuchAlgorithmException should be thrown if algorithm is null");
} catch (NullPointerException e) {
} catch (NoSuchAlgorithmException e) {
}
for (int i = 0; i < invalidValues.length; i++) {
try {
KeyGenerator.getInstance(invalidValues[i]);
fail("NoSuchAlgorithmException should be thrown");
} catch (NoSuchAlgorithmException e) {
}
}
}
/*
* Test for <code> getInstance(String algorithm) </code> method
* Assertions: returns KeyGenerator object
*/
public void testGetInstanceString02() throws NoSuchAlgorithmException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
KeyGenerator keyG;
for (int i = 0; i < validValues.length; i++) {
keyG = KeyGenerator.getInstance(validValues[i]);
assertEquals("Incorrect algorithm", keyG.getAlgorithm(), validValues[i]);
}
}
/*
* Test for <code> getInstance(String algorithm, String provider)</code> method
* Assertions:
* throws NullPointerException when algorithm is null
* throws NoSuchAlgorithmException when algorithm isnot available
*/
public void testGetInstanceStringString01() throws
NoSuchAlgorithmException, IllegalArgumentException,
NoSuchProviderException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
try {
KeyGenerator.getInstance(null, defaultProviderName);
fail("NullPointerException or NoSuchAlgorithmException should be thrown if algorithm is null");
} catch (NullPointerException e) {
} catch (NoSuchAlgorithmException e) {
}
for (int i = 0; i < invalidValues.length; i++) {
try {
KeyGenerator.getInstance(invalidValues[i], defaultProviderName);
fail("NoSuchAlgorithmException must be thrown");
} catch (NoSuchAlgorithmException e) {
}
}
}
/*
* Test for <code> getInstance(String algorithm, String provider)</code> method
* Assertions:
* throws IllegalArgumentException when provider is null or empty
* throws NoSuchProviderException when provider has not be configured
*/
public void testGetInstanceStringString02() throws IllegalArgumentException,
NoSuchAlgorithmException, NoSuchProviderException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
String provider = null;
for (int i = 0; i < validValues.length; i++) {
try {
KeyGenerator.getInstance(validValues[i], provider);
fail("IllegalArgumentException must be thrown when provider is null");
} catch (IllegalArgumentException e) {
}
try {
KeyGenerator.getInstance(validValues[i], "");
fail("IllegalArgumentException must be thrown when provider is empty");
} catch (IllegalArgumentException e) {
}
for (int j = 1; j < invalidValues.length; j++) {
try {
KeyGenerator.getInstance(validValues[i], invalidValues[j]);
fail("NoSuchProviderException must be thrown (algorithm: "
.concat(validValues[i]).concat(" provider: ")
.concat(invalidValues[j]).concat(")"));
} catch (NoSuchProviderException e) {
}
}
}
}
/*
* Test for <code> getInstance(String algorithm, String provider)</code> method
* Assertions: returns KeyGenerator object
*/
public void testGetInstanceStringString03() throws IllegalArgumentException,
NoSuchAlgorithmException, NoSuchProviderException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
KeyGenerator keyG;
for (int i = 0; i < validValues.length; i++) {
keyG = KeyGenerator.getInstance(validValues[i], defaultProviderName);
assertEquals("Incorrect algorithm", keyG.getAlgorithm(), validValues[i]);
assertEquals("Incorrect provider", keyG.getProvider().getName(), defaultProviderName);
}
}
/*
* Test for <code> getInstance(String algorithm, Provider provider)</code> method
* Assertions:
* throws NullPointerException when algorithm is null
* throws NoSuchAlgorithmException when algorithm isnot available
*/
public void testGetInstanceStringProvider01() throws NoSuchAlgorithmException,
IllegalArgumentException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
try {
KeyGenerator.getInstance(null, defaultProvider);
fail("NullPointerException or NoSuchAlgorithmException should be thrown if algorithm is null");
} catch (NullPointerException e) {
} catch (NoSuchAlgorithmException e) {
}
for (int i = 0; i < invalidValues.length; i++) {
try {
KeyGenerator.getInstance(invalidValues[i], defaultProvider);
fail("NoSuchAlgorithmException must be thrown");
} catch (NoSuchAlgorithmException e) {
}
}
}
/*
* Test for <code> getInstance(String algorithm, Provider provider)</code> method
* Assertions:
* throws IllegalArgumentException when provider is null
*/
public void testGetInstanceStringProvider02() throws NoSuchAlgorithmException,
IllegalArgumentException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
Provider provider = null;
for (int i = 0; i < invalidValues.length; i++) {
try {
KeyGenerator.getInstance(invalidValues[i], provider);
fail("IllegalArgumentException must be thrown");
} catch (IllegalArgumentException e) {
}
}
}
/*
* Test for <code> getInstance(String algorithm, Provider provider)</code> method
* Assertions: returns KeyGenerator object
*/
public void testGetInstanceStringProvider03() throws IllegalArgumentException,
NoSuchAlgorithmException {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
KeyGenerator keyA;
for (int i = 0; i < validValues.length; i++) {
keyA = KeyGenerator.getInstance(validValues[i], defaultProvider);
assertEquals("Incorrect algorithm", keyA.getAlgorithm(), validValues[i]);
assertEquals("Incorrect provider", keyA.getProvider(), defaultProvider);
}
}
/*
* Test for <code>init(int keysize)</code> and
* <code>init(int keysize, SecureRandom random)</code> methods
* Assertion: throws InvalidParameterException if keysize is wrong
*
*/
public void testInitKey() throws Exception {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
if (defaultAlgorithm
.equals(validAlgorithmsKeyGenerator[validAlgorithmsKeyGenerator.length - 1])) {
return;
}
int[] size = { Integer.MIN_VALUE, -1, 0, Integer.MAX_VALUE };
KeyGenerator[] kgs = createKGs();
SecureRandom random = new SecureRandom();
for (int i = 0; i < kgs.length; i++) {
for (int j = 0; j < size.length; j++) {
try {
kgs[i].init(size[j]);
} catch (InvalidParameterException ignore) {
}
try {
kgs[i].init(size[j], random);
} catch (InvalidParameterException ignore) {
}
}
}
}
/*
* Test for <code>init(AlgorithmParameterSpec params)</code> and
* <code>init(AlgorithmParameterSpec params, SecureRandom random)</code> methods
* Assertion: throws InvalidAlgorithmParameterException when params is null
*/
public void testInitParams() throws Exception {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
KeyGenerator [] kgs = createKGs();
AlgorithmParameterSpec aps = null;
for (int i = 0; i < kgs.length; i++) {
try {
kgs[i].init(aps);
fail("InvalidAlgorithmParameterException must be thrown");
} catch (InvalidAlgorithmParameterException e) {
}
try {
kgs[i].init(aps, new SecureRandom());
fail("InvalidAlgorithmParameterException must be thrown");
} catch (InvalidAlgorithmParameterException e) {
}
}
}
/*
* Test for <code>generateKey()</code> and
* <code>init(SecureRandom random)</code> methods
* <code>init(int keysize, SecureRandom random)</code> methods
* <code>init(int keysize)</code> methods
* <code>init(AlgorithmParameterSpec params, SecureRandom random)</code> methods
* <code>init(AlgorithmParameterSpec params)</code> methods
* Assertions:
* initializes KeyGenerator;
* returns SecretKey object
*
*/
public void testGenerateKey() throws Exception {
if (!DEFSupported) {
fail(NotSupportMsg);
return;
}
SecretKey sKey;
String dAl = defaultAlgorithm.toUpperCase();
KeyGenerator[] kgs = createKGs();
for (int i = 0; i < kgs.length; i++) {
sKey = kgs[i].generateKey();
assertEquals("Incorrect algorithm", sKey.getAlgorithm()
.toUpperCase(), dAl);
kgs[i].init(new SecureRandom());
sKey = kgs[i].generateKey();
assertEquals("Incorrect algorithm", sKey.getAlgorithm()
.toUpperCase(), dAl);
kgs[i].init(defaultKeySize);
sKey = kgs[i].generateKey();
assertEquals("Incorrect algorithm", sKey.getAlgorithm()
.toUpperCase(), dAl);
kgs[i].init(defaultKeySize, new SecureRandom());
sKey = kgs[i].generateKey();
assertEquals("Incorrect algorithm", sKey.getAlgorithm()
.toUpperCase(), dAl);
}
}
}
/**
* Additional class for KeyGenerator constructor verification
*/
class myKeyGenerator extends KeyGenerator {
public myKeyGenerator(KeyGeneratorSpi keyAgreeSpi, Provider provider,
String algorithm) {
super(keyAgreeSpi, provider, algorithm);
}
}