eu.agrosense.api.session.Hasher Maven / Gradle / Ivy

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/**
 * Copyright (C) 2008-2013 LimeTri. All rights reserved.
 *
 * AgroSense 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.
 *
 * There are special exceptions to the terms and conditions of the GPLv3 as it is applied to
 * this software, see the FLOSS License Exception
 * .
 *
 * AgroSense 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 AgroSense.  If not, see .
 */
package eu.agrosense.api.session;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import org.openide.util.Exceptions;

/**
 *
 * @author Timon Veenstra 
 */
public class Hasher {
    public static String hash(String password) {
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-256");
            md.update(password.getBytes());

            byte byteData[] = md.digest();

            //convert the byte to hex format method 1
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < byteData.length; i++) {
                sb.append(Integer.toString((byteData[i] & 0xff) + 0x100, 16).substring(1));
            }

            return sb.toString();
        } catch (NoSuchAlgorithmException ex) {
            Exceptions.printStackTrace(ex);
            throw new RuntimeException(ex);
        }
    }    
}