org.awknet.commons.security.Encryption.java Source code

Introduction

Here is the source code for org.awknet.commons.security.Encryption.java

Source

/*
 * Copyright (C) 2011 Jefferson Campos <foguinho.peruca@gmail.com>
 * This file is part of awknet-commons - http://awknet-commons.awknet.org
 *
 * Awknet-commons is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Awknet-commons 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 for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with awknet-commons. If not, see <http://www.gnu.org/licenses/>.
 */

package org.awknet.commons.security;

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

// TODO use http://www.jasypt.org/
public class Encryption {

    private static final Log LOG = LogFactory.getLog(Encryption.class);

    /**
     * <p>
     * This function encrypt the password with MD5 method.
     * </p>
     * 
     * @param value
     *            : a password to be encrypt.
     * @return A encrypted password.
     * @since SIGERAR v1.1 - April/2008.
     * @throws NoSuchAlgorithmException
     */
    public String genericEncryptMD5(String value) throws NoSuchAlgorithmException {
        MessageDigest md = MessageDigest.getInstance("MD5");
        BigInteger hash = new BigInteger(1, md.digest(value.getBytes()));
        String encryptedValue = hash.toString(16);
        if (encryptedValue.length() % 2 != 0) {
            encryptedValue = "0" + encryptedValue;
        }
        return encryptedValue;
    }

    public static String encrypt(String value) {
        try {
            return new Encryption().genericEncryptMD5(value);
        } catch (NoSuchAlgorithmException e) {
            LOG.error("[CRYPT] Error during the encryptation of password!", e);
        }
        return null;
    }
}