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/*
* Copyright (c) 2005, 2007, 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 5083253
* @summary Verify that PBKDF2WithHmacSHA1 SecretKeyFactory works.
* @author Valerie Peng
*/
import java.io.*;
import java.math.BigInteger;
import java.security.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import javax.crypto.interfaces.*;
import java.util.*;
public class PBKDF2HmacSHA1FactoryTest {
private static final String ALGO = "PBKDF2WithHmacSHA1";
static final int[] KEY_SIZES = { 128, 256 }; // in bits
/*
* Use test vectors found in the appendix B of RFC 3962
* "Advanced Encryption Standard (AES) Encryption for Kerberos 5"
*/
private static final TestVector[] TEST_VECTORS = {
new TestVector(1, "password", "ATHENA.MIT.EDUraeburn",
"cdedb5281bb2f801565a1122b25635150ad1f7a04bb9f3a333ecc0e2e1f70837"),
new TestVector(2, "password", "ATHENA.MIT.EDUraeburn",
"01dbee7f4a9e243e988b62c73cda935da05378b93244ec8f48a99e61ad799d86"),
new TestVector(1200, "password", "ATHENA.MIT.EDUraeburn",
"5c08eb61fdf71e4e4ec3cf6ba1f5512ba7e52ddbc5e5142f708a31e2e62b1e13"),
new TestVector(5, "password", fromHexString("1234567878563412"),
"d1daa78615f287e6a1c8b120d7062a493f98d203e6be49a6adf4fa574b6e64ee"),
new TestVector(1200,
"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
"pass phrase equals block size",
"139c30c0966bc32ba55fdbf212530ac9c5ec59f1a452f5cc9ad940fea0598ed1"),
new TestVector(1200,
"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
"pass phrase exceeds block size",
"9ccad6d468770cd51b10e6a68721be611a8b4d282601db3b36be9246915ec82a"),
new TestVector(50, fromHexString("f09d849e"),
"EXAMPLE.COMpianist",
"6b9cf26d45455a43a5b8bb276a403b39e7fe37a0c41e02c281ff3069e1e94f52"),
};
private static void test() throws Exception {
SecretKeyFactory skf = SecretKeyFactory.getInstance(ALGO, "SunJCE");
for (int i = 0; i < TEST_VECTORS.length; i++) {
System.out.println("=>Testing vector#" + (i+1));
TestVector tv = TEST_VECTORS[i];
for (int j = 0; j < KEY_SIZES.length; j++) {
PBEKeySpec keySpec = tv.keySpecs[j];
PBEKey key = (PBEKey) skf.generateSecret(keySpec);
byte[] derivedKey = key.getEncoded();
if (!(key.getFormat().equalsIgnoreCase("RAW"))) {
throw new Exception("Wrong format for derived key");
}
if (derivedKey.length != KEY_SIZES[j]/8) {
throw new Exception("Wrong length for derived key");
}
// Test generateSecret(...) using test vectors
if (!tv.expectedVals[j].equals(toHexString(derivedKey))) {
System.out.println("got: " + toHexString(derivedKey));
System.out.println("expected: " + tv.expectedVals[j]);
throw new Exception("Wrong value for derived key");
}
// Test getKeySpec(...)
PBEKeySpec keySpec2 = (PBEKeySpec)
skf.getKeySpec(key, PBEKeySpec.class);
if (!isEqual(keySpec, keySpec2)) {
throw new Exception("Wrong derived keySpec");
}
}
}
}
private static boolean isEqual(PBEKeySpec spec1, PBEKeySpec spec2) {
if ((spec1 == null) || (spec2 == null)) return false;
if (Arrays.equals(spec1.getPassword(), spec2.getPassword()) &&
Arrays.equals(spec1.getSalt(), spec2.getSalt()) &&
spec1.getIterationCount() == spec2.getIterationCount() &&
spec1.getKeyLength() == spec2.getKeyLength()) {
return true;
}
return false;
}
private static String toHexString(byte[] bytes) {
String mapping = "0123456789abcdef";
StringBuilder sb = new StringBuilder(bytes.length*2);
for (int i = 0; i < bytes.length; i++) {
int low = bytes[i] & 0x0f;
int high = ((bytes[i] >> 4) & 0x0f);
char[] res = new char[2];
res[0] = mapping.charAt(high);
res[1] = mapping.charAt(low);
sb.append(res);
}
return sb.toString();
}
private static byte[] fromHexString(String value) {
byte[] bytes = new byte[value.length()/2];
String mapping = "0123456789abcdef";
StringBuilder sb = new StringBuilder(bytes.length*2);
for (int i = 0; i < bytes.length; i++) {
String high = value.substring(2*i, 2*i+1);
String low = value.substring(2*i+1, 2*i+2);
bytes[i] = (byte) ((mapping.indexOf(high) << 4) +
mapping.indexOf(low));
}
return bytes;
}
public static void main (String[] args) throws Exception {
test();
System.out.println("Test Passed!");
}
}
class TestVector {
PBEKeySpec[] keySpecs;
String[] expectedVals;
TestVector(int iterCount, String password, String saltString,
String expectedVal) {
try {
init(iterCount, password, saltString.getBytes("UTF-8"),
expectedVal);
} catch (Exception ex) {
keySpecs = null;
expectedVals = null;
}
}
TestVector(int iterCount, byte[] passwordUTF8, String saltString,
String expectedVal) {
try {
init(iterCount, new String(passwordUTF8, "UTF-8"),
saltString.getBytes("UTF-8"), expectedVal);
} catch (Exception ex) {
keySpecs = null;
expectedVals = null;
}
}
TestVector(int iterCount, String password, byte[] salt,
String expectedVal) {
init(iterCount, password, salt, expectedVal);
}
private void init(int iterCount, String password, byte[] salt,
String expectedVal) {
try {
int numOfKeySizes = PBKDF2HmacSHA1FactoryTest.KEY_SIZES.length;
keySpecs = new PBEKeySpec[numOfKeySizes];
expectedVals = new String[numOfKeySizes];
for (int i = 0; i < numOfKeySizes; i++) {
int keySize = PBKDF2HmacSHA1FactoryTest.KEY_SIZES[i];
keySpecs[i] = new PBEKeySpec(password.toCharArray(),
salt, iterCount, keySize);
expectedVals[i] = expectedVal.substring(0, keySize/4);
}
} catch (Exception ex) {
keySpecs = null;
expectedVals = null;
}
}
}
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