com.earldouglas.xjdl.io.LicenseCreator.java Source code

Introduction

Here is the source code for com.earldouglas.xjdl.io.LicenseCreator.java

Source

/*
 * Copyright 2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.earldouglas.xjdl.io;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;
import java.security.NoSuchAlgorithmException;

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

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

import com.earldouglas.xjdl.License;

public class LicenseCreator {

    public String encryptLicense(License license, String key)
            throws Exception, NoSuchAlgorithmException, NoSuchPaddingException {
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
        objectOutputStream.writeObject(license);
        objectOutputStream.close();
        byte[] serializedLicense = byteArrayOutputStream.toByteArray();

        SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes(), "AES");
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
        byte[] encryptedLicense = cipher.doFinal(serializedLicense);
        String encodedLicense = Base64.encodeBase64String(encryptedLicense);
        encodedLicense = encodedLicense.replaceAll("\n", "");
        encodedLicense = encodedLicense.replaceAll("\r", "");
        return encodedLicense;
    }
}