271 lines
9.5 KiB
Java
271 lines
9.5 KiB
Java
/*
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* Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.security.spec.InvalidKeySpecException;
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import java.util.Arrays;
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import java.util.Random;
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import javax.crypto.SecretKey;
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import javax.crypto.SecretKeyFactory;
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import javax.crypto.interfaces.PBEKey;
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import javax.crypto.spec.PBEKeySpec;
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import javax.security.auth.DestroyFailedException;
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import static java.lang.System.out;
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/*
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* @test
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* @bug 8048820
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* @summary The test verifies if the SecretKeyFactory.translateKey() method
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* works as expected for the PBKDF2 algorithms.
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*/
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public class PBKDF2TranslateTest {
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private static final String PASS_PHRASE = "some hidden string";
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private static final int ITERATION_COUNT = 1000;
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private static final int KEY_SIZE = 128;
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private static final String[] TEST_ALGOS = { "PBKDF2WithHmacSHA1",
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"PBKDF2WithHmacSHA224", "PBKDF2WithHmacSHA256",
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"PBKDF2WithHmacSHA384", "PBKDF2WithHmacSHA512" };
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private final String algoForTest;
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public static void main(String[] args) throws Exception {
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for (String algo : TEST_ALGOS) {
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PBKDF2TranslateTest theTest = new PBKDF2TranslateTest(algo);
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byte[] salt = new byte[8];
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new Random().nextBytes(salt);
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theTest.testMyOwnSecretKey(salt);
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theTest.generateAndTranslateKey(salt);
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theTest.translateSpoiledKey(salt);
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}
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}
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public PBKDF2TranslateTest(String algo) {
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algoForTest = algo;
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}
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/**
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* The test case scenario implemented in the method: - derive PBKDF2 key
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* using the given algorithm; - translate the key - check if the translated
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* and original keys have the same key value.
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*
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*/
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public void generateAndTranslateKey(byte[] salt)
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throws NoSuchAlgorithmException, InvalidKeySpecException,
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InvalidKeyException {
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// derive PBKDF2 key
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SecretKey key1 = getSecretKeyForPBKDF2(algoForTest, salt);
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// translate key
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SecretKeyFactory skf = SecretKeyFactory.getInstance(algoForTest);
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SecretKey key2 = skf.translateKey(key1);
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// Check if it still the same after translation
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if (!Arrays.equals(key1.getEncoded(), key2.getEncoded())) {
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System.out.println("Key1=" + new String(key1.getEncoded())
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+ " key2=" + new String(key2.getEncoded()) + " salt="
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+ new String(salt));
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throw new RuntimeException(
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"generateAndTranslateKey test case failed: the key1 and"
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+ " key2 values in its primary encoding format are"
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+ " not the same for " + algoForTest
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+ " algorithm.");
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}
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}
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/**
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* The test case scenario implemented in the method: - derive Key1 for the
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* given PBKDF2 algorithm - create my own secret Key2 as an instance of a
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* class implements PBEKey - translate Key2 - check if the key value of the
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* translated key and Key1 are the same.
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*/
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private void testMyOwnSecretKey(byte[] salt)
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throws NoSuchAlgorithmException, InvalidKeySpecException,
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InvalidKeyException {
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SecretKey key1 = getSecretKeyForPBKDF2(algoForTest, salt);
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SecretKey key2 = getMyOwnSecretKey(salt);
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// Is it actually the same?
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if (!Arrays.equals(key1.getEncoded(), key2.getEncoded())) {
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throw new RuntimeException(
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"We shouldn't be here. The key1 and key2 values in its"
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+ " primary encoding format have to be the same!");
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}
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// translate key
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SecretKeyFactory skf = SecretKeyFactory.getInstance(algoForTest);
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SecretKey key3 = skf.translateKey(key2);
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// Check if it still the same after translation
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if (!Arrays.equals(key1.getEncoded(), key3.getEncoded())) {
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System.out.println("Key1=" + new String(key1.getEncoded())
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+ " key3=" + new String(key3.getEncoded()) + " salt="
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+ new String(salt));
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throw new RuntimeException(
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"testMyOwnSecretKey test case failed: the key1 and key3"
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+ " values in its primary encoding format are not"
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+ " the same for " + algoForTest + " algorithm.");
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}
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}
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/**
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* The test case scenario implemented in the method: - create my own secret
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* Key2 as an instance of a class implements PBEKey - spoil the key (set
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* iteration count to 0, for example) - try to translate key -
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* InvalidKeyException is expected.
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*/
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public void translateSpoiledKey(byte[] salt)
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throws NoSuchAlgorithmException, InvalidKeySpecException {
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// derive the key
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SecretKey key1 = getMyOwnSecretKey(salt);
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// spoil the key
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((MyPBKDF2SecretKey) key1).spoil();
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// translate key
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SecretKeyFactory skf = SecretKeyFactory.getInstance(algoForTest);
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try {
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skf.translateKey(key1);
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throw new RuntimeException(
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"translateSpoiledKey test case failed, should throw"
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+ " InvalidKeyException when spoil the key");
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} catch (InvalidKeyException ike) {
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out.println("Expected exception when spoil the key");
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}
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}
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/**
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* Generate a PBKDF2 secret key using given algorithm.
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*/
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private SecretKey getSecretKeyForPBKDF2(String algoDeriveKey, byte[] salt)
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throws NoSuchAlgorithmException, InvalidKeySpecException {
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SecretKeyFactory skf = SecretKeyFactory.getInstance(algoDeriveKey);
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PBEKeySpec spec = new PBEKeySpec(PASS_PHRASE.toCharArray(), salt,
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ITERATION_COUNT, KEY_SIZE);
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return skf.generateSecret(spec);
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}
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/**
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* Generate a secrete key as an instance of a class implements PBEKey.
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*/
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private SecretKey getMyOwnSecretKey(byte[] salt)
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throws InvalidKeySpecException, NoSuchAlgorithmException {
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return new MyPBKDF2SecretKey(PASS_PHRASE, algoForTest, salt,
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ITERATION_COUNT, KEY_SIZE);
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}
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/**
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* An utility class to check the SecretKeyFactory.translateKey() method.
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*/
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class MyPBKDF2SecretKey implements PBEKey {
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private final byte[] key;
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private final byte[] salt;
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private final String algorithm;
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private final int keyLength;
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private final String pass;
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private int itereationCount;
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/**
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* The key is generating by SecretKeyFactory and its value just copying
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* in the key field of MySecretKey class. So, this is real key derived
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* using the given algo.
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*/
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public MyPBKDF2SecretKey(String passPhrase, String algo, byte[] salt1,
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int iterationCount, int keySize)
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throws InvalidKeySpecException, NoSuchAlgorithmException {
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algorithm = algo;
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salt = salt1;
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itereationCount = iterationCount;
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pass = passPhrase;
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PBEKeySpec spec = new PBEKeySpec(passPhrase.toCharArray(), salt,
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iterationCount, keySize);
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SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(algo);
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SecretKey realKey = keyFactory.generateSecret(spec);
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keyLength = realKey.getEncoded().length;
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key = new byte[keyLength];
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System.arraycopy(realKey.getEncoded(), 0, key, 0, keyLength);
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}
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@Override
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public String getAlgorithm() {
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return algorithm;
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}
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@Override
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public String getFormat() {
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return "RAW";
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}
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@Override
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public byte[] getEncoded() {
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byte[] copy = new byte[keyLength];
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System.arraycopy(key, 0, copy, 0, keyLength);
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return copy;
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}
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@Override
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public int getIterationCount() {
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return itereationCount;
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}
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@Override
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public byte[] getSalt() {
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return salt;
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}
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@Override
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public char[] getPassword() {
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return pass.toCharArray();
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}
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/**
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* Spoil the generated key (before translation) to cause an
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* InvalidKeyException
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*/
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public void spoil() {
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itereationCount = -1;
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}
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@Override
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public void destroy() throws DestroyFailedException {
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}
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@Override
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public boolean isDestroyed() {
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return false;
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}
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}
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}
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