/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.gatein.portal.installer;
import java.io.UnsupportedEncodingException;
import java.security.GeneralSecurityException;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;
import org.gatein.common.util.Base64;
// import org.picketlink.identity.federation.core.util.Base64;
/**
* Utility dealing with Password Based Encryption
* (Code is ripped off of the PBEUtils class in JBossSecurity/PicketBox)
* @author Scott.Stark@jboss.org
* @author Anil.Saldhana@redhat.com
* @since May 25, 2010
*/
public class PBEUtils {
public static byte[] encode(byte[] secret, String cipherAlgorithm,
SecretKey cipherKey, PBEParameterSpec cipherSpec)
throws Exception {
Cipher cipher = Cipher.getInstance(cipherAlgorithm);
cipher.init(Cipher.ENCRYPT_MODE, cipherKey, cipherSpec);
byte[] encoding = cipher.doFinal(secret);
return encoding;
}
public static String encode64(byte[] secret, String cipherAlgorithm,
SecretKey cipherKey, PBEParameterSpec cipherSpec)
throws Exception {
byte[] encoding = encode(secret, cipherAlgorithm, cipherKey, cipherSpec);
String b64 = Base64.encodeBytes( encoding );
return b64;
}
public static byte[] decode(byte[] secret, String cipherAlgorithm,
SecretKey cipherKey, PBEParameterSpec cipherSpec) throws GeneralSecurityException {
Cipher cipher = Cipher.getInstance(cipherAlgorithm);
cipher.init(Cipher.DECRYPT_MODE, cipherKey, cipherSpec);
byte[] decode = cipher.doFinal(secret);
return decode;
}
public static String decode64(String secret, String cipherAlgorithm,
SecretKey cipherKey, PBEParameterSpec cipherSpec) throws GeneralSecurityException, UnsupportedEncodingException {
byte[] encoding = Base64.decode( secret );
byte[] decode = decode(encoding, cipherAlgorithm, cipherKey, cipherSpec);
return new String(decode, "UTF-8");
}
public static void main(String[] args) throws Exception {
if( args.length != 3 ) {
System.err.println(
"Encrypt a password"
+ "Usage: PBEUtils salt count domain-password password"
+" salt : the Salt "
+" count : the IterationCount "
+" password : the plaintext password that should be encrypted"
);
throw new RuntimeException( " ERROR: please see format above" );
}
byte[] salt = args[0].substring(0, 8).getBytes();
int count = Integer.parseInt(args[1]);
char[] password = "somearbitrarycrazystringthatdoesnotmatter".toCharArray();
byte[] passwordToEncode = args[2].getBytes("UTF-8");
PBEParameterSpec cipherSpec = new PBEParameterSpec(salt, count);
PBEKeySpec keySpec = new PBEKeySpec(password);
SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEwithMD5andDES");
SecretKey cipherKey = factory.generateSecret(keySpec);
String encodedPassword = encode64(passwordToEncode, "PBEwithMD5andDES",
cipherKey, cipherSpec);
System.err.println("Encoded password: MASK-"+encodedPassword);
}
}