com.philosophy.LicenseGen.java Source code

Introduction

Here is the source code for com.philosophy.LicenseGen.java

Source

package com.philosophy;

import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

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

public class LicenseGen {
    private String license = null;

    public LicenseGen(String text) {
        license = text;
        byte[] keyBytes = { 88, 42, 94, 52, 56, 81, 82, 98 };
        System.out.println("Original License : " + license);
        try {
            SecretKey key = new SecretKeySpec(keyBytes, "DES");
            Cipher cipher = Cipher.getInstance("DES");
            byte[] data = license.getBytes();
            cipher.init(Cipher.ENCRYPT_MODE, key);
            byte[] encrypted = cipher.doFinal(data);
            System.out.println("Encrypted license : " + new String(encrypted));
            //now convert to base64
            byte[] base64Enc = Base64.encodeBase64(encrypted);
            String encodedLicense = new String(base64Enc);
            System.out.println("Encoded license is : " + encodedLicense);
            System.out.println("Encoding string length is : " + encodedLicense.length());
        } catch (NoSuchAlgorithmException e) {
        } catch (NoSuchPaddingException e) {
        } catch (InvalidKeyException e) {
        } catch (IllegalStateException e) {
        } catch (IllegalBlockSizeException e) {
        } catch (BadPaddingException e) {
        }
    }

    public static void main(String[] args) {
        //LicenseGen lg = new LicenseGen(args[0].toString());
        new LicenseGen("ABR012016113099999999");
    }

}