com.lwr.software.reporter.utils.EncryptionUtil.java Source code

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Here is the source code for com.lwr.software.reporter.utils.EncryptionUtil.java

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/* 
   Query2Report Copyright (C) 2018  Yogesh Deshpande
       
   This file is part of Query2Report.
       
   Query2Report 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.
       
   Query2Report 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 Query2Report.  If not, see <http://www.gnu.org/licenses/>.
*/

package com.lwr.software.reporter.utils;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;

import com.lwr.software.reporter.DashboardConstants;

public class EncryptionUtil {

    public static String encrypt(String value) {
        try {
            IvParameterSpec iv = new IvParameterSpec(
                    DashboardConstants.INIT_VECTOR.getBytes(DashboardConstants.ENCODING));
            SecretKeySpec skeySpec = new SecretKeySpec(
                    DashboardConstants.INIT_KEY.getBytes(DashboardConstants.ENCODING),
                    DashboardConstants.ALGORITHM);
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
            cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
            byte[] encrypted = cipher.doFinal(value.getBytes());
            return Base64.encodeBase64String(encrypted);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }

    public static String decrypt(String encrypted) {
        try {
            IvParameterSpec iv = new IvParameterSpec(
                    DashboardConstants.INIT_VECTOR.getBytes(DashboardConstants.ENCODING));
            SecretKeySpec skeySpec = new SecretKeySpec(
                    DashboardConstants.INIT_KEY.getBytes(DashboardConstants.ENCODING),
                    DashboardConstants.ALGORITHM);
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
            cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
            byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));
            return new String(original);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) {
        System.out.println(EncryptionUtil.decrypt("fDnrWPQ3YEfyYLJxgmqbINlC25eDP835xvxxoVZqPbU="));
    }
}