root / trunk / install / IzPack / sample / src / PWDEncryptor.java @ 11445
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/*
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* $Id: PWDEncryptor.java 5819 2006-06-14 07:29:09Z cesar $
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* Copyright (C) 2003 Elmar Grom
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*
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* File : PWDEncryptor.java
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* Description : Example code for a password encryption service
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* Author's email : elmar@grom.net
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* Author's Website : http://www.izforge.com
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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package com.izforge.izpack.sample; |
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import com.izforge.izpack.panels.*; |
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/*---------------------------------------------------------------------------*/
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/**
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* This class provides a demonstration for using an encryption service in
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* connection with a password field, as used in a <code>UserInputPanel</code>.
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*
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* @version 0.0.1 / 02/19/03
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* @author Elmar Grom
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*/
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/*---------------------------------------------------------------------------*/
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public class PWDEncryptor implements Processor |
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{
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/*--------------------------------------------------------------------------*/
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/**
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* Encrypts the a password and returns the encrypted result. <br>
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* <b>Note:</b> this is not a real encryption algorithm. The code only
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* demonstrates the use of this interface in a real installation environment.
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* For a real application a proper encryption mechanism must be used. Though
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* Java 1.4.X provides such algorithms, you need to consider that not all
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* potential target environments have this version installed. It seems best
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* to include the necessary encryption library with the installer.
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*
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* @param client the client object using the services of this encryptor.
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*
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* @return the encryption result.
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*/
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/*--------------------------------------------------------------------------*/
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public String process (ProcessingClient client) |
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{
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if (client.getNumFields () < 1) |
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{
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return (""); |
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} |
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char [] password = client.getFieldContents (0).toCharArray (); |
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char [] result = new char [password.length]; |
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int temp;
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for (int i = 0; i < password.length; i++) |
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{
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temp = password [i] - 57;
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if (i > 0) |
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{
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temp = temp + password [i - 1];
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} |
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if ((temp % 3) == 0) |
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{
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temp = temp + 13;
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} |
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if (temp < 0) |
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{
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temp = temp + 193;
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} |
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result [i] = (char)temp;
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} |
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return (new String (result)); |
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} |
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} |
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/*---------------------------------------------------------------------------*/
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