Where to store the password data for exiting user in Elgamal Algorithm

Question

hi,
i am doing a project in Intelligent security in java using Elagamal algorithm. The feature of Elgamal is that the password is not stored in database . Then where is the password is stored to check for a existing user .
If i am an existing user then when i type the username and password then it should check or compare and tell that password is right or wrong . so where is the password is stored to compare ?? please give me the coding in java .
i need the coding immediately , of how to get the password and to store and then to compare where the user is correct else message should display "type the correct password".
Given below is my Main window coding plz help me where to include the coding,
     This simple extension of the java.awt.Frame class
     contains all the elements necessary to act as the
     main window of an application.
// LOGIN WINDOW ( FIRST WINDOW ) FOR LOGIN AND EXISTING USER
import java.awt.*;
import java.io.*;
import java.net.*;
import java.util.*;
import java.sql.*;
import java.math.*;
import java.security.*;
import java.io.IOException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
public class Smart extends Frame
     public Smart()
          // This code is automatically generated by Visual Cafe when you add
          // components to the visual environment. It instantiates and initializes
          // the components. To modify the code, only use code syntax that matches
          // what Visual Cafe can generate, or Visual Cafe may be unable to back
          // parse your Java file into its visual environment.
          //{{INIT_CONTROLS
          setLayout(null);
          setBackground(new java.awt.Color(255,247,192));
          setSize(1200,900);
// 157,135,178
          setVisible(false);
          label1.setText("USERID");
          add(label1);
          label1.setFont(new Font("Dialog", Font.PLAIN, 14));
          label1.setBounds(315,180,84,48);
          label2.setText("PASSWORD");
          add(label2);
          label2.setFont(new Font("Dialog", Font.PLAIN, 14));
          label2.setBounds(315,260,100,40);
          textField1.setBounds(430,180,216,36);
          //textField1.setBackground(new java.awt.Color(196,197,233));//textfieldcolor
          add(textField1);
          textField2.setEchoChar('*');
          //textField2.setBackground(new java.awt.Color(196,197,233));
          add(textField2);
          textField2.setBounds(430,260,213,36);
          button1.setLabel("SUBMIT");
          add(button1);
          button1.setBackground(new java.awt.Color(196,197,233));
          button1.setBounds(320,360,120,40);
          button2.setLabel("CLEAR");
          add(button2);
          button2.setBackground(new java.awt.Color(196,197,233));
          button2.setBounds(520,360,120,40);
          label3.setText("REGISTRATION FORM");
          add(label3);
          label3.setFont(new Font("Dialog", Font.BOLD, 20));
          label3.setBounds(324,54,550,80);
          button3.setLabel("NEW USER REGISTRATION");
          add(button3);
          button3.setBackground(new java.awt.Color(196,197,233));
          button3.setBounds(369,450,232,40);
          //add(textArea1);
          //textArea1.setBounds(0,360,576,52);
          setTitle("LOGIN PHASE Application");
          /*int mStrength = 16;
          SecureRandom mSecureRandom = new SecureRandom();
          p = new BigInteger(mStrength, 16, mSecureRandom);*/
          //{{INIT_MENUS
          //{{REGISTER_LISTENERS
          SymWindow aSymWindow = new SymWindow();
          this.addWindowListener(aSymWindow);
          SymAction lSymAction = new SymAction();
          button1.addActionListener(lSymAction);
          button2.addActionListener(lSymAction);
          button3.addActionListener(lSymAction);
     public Smart(String title)
          this();
          setTitle(title);
* Shows or hides the component depending on the boolean flag b.
* @param b if true, show the component; otherwise, hide the component.
* @see java.awt.Component#isVisible
public void setVisible(boolean b)
          if(b)
          setLocation(50, 50);
          super.setVisible(b);
     public static void main(String args[])
     try
               //Create a new instance of our application's frame, and make it visible.
          (new Smart()).setVisible(true);
          catch (Throwable t)
               System.err.println(t);
               t.printStackTrace();
               // Ensure the application exits with an error condition.
               System.exit(1);
          public void addNotify()
          // Record the size of the window prior to calling parents addNotify.
          Dimension d = getSize();
          super.addNotify();
          if (fComponentsAdjusted)
               return;
          // Adjust components according to the insets
          setSize(getInsets().left + getInsets().right + d.width, getInsets().top + getInsets().bottom + d.height);
          Component components[] = getComponents();
          for (int i = 0; i < components.length; i++)
               Point p = components.getLocation();
               p.translate(getInsets().left, getInsets().top);
               components[i].setLocation(p);
          fComponentsAdjusted = true;
     // Used for addNotify check.
     boolean fComponentsAdjusted = false;
     //{{DECLARE_CONTROLS
     java.awt.Button button1 = new java.awt.Button();
     java.awt.Button button2 = new java.awt.Button();
     java.awt.Label label1 = new java.awt.Label();
     java.awt.Label label2 = new java.awt.Label();
     java.awt.Label label3 = new java.awt.Label();
     java.awt.Button button3 = new java.awt.Button();
     java.awt.TextField textField1 = new java.awt.TextField();
     java.awt.TextField textField2 = new java.awt.TextField();
     java.awt.TextArea textArea1 = new java.awt.TextArea();
     //BigInteger p;
     //{{DECLARE_MENUS
     class SymWindow extends java.awt.event.WindowAdapter
          public void windowClosing(java.awt.event.WindowEvent event)
               Object object = event.getSource();
               if (object == Smart.this)
                    Smart_WindowClosing(event);
     void Smart_WindowClosing(java.awt.event.WindowEvent event)
          System.exit(0);
     class SymAction implements java.awt.event.ActionListener
          public void actionPerformed(java.awt.event.ActionEvent event)
               Object object = event.getSource();
               if (object == button1)
                    button1_ActionPerformed(event);
               else if (object == button2)
                    button2_ActionPerformed(event);
               else if (object == button3)
                    button3_ActionPerformed(event);
     void button1_ActionPerformed(java.awt.event.ActionEvent event)
          //try{
          String ids = textField1.getText();
          String pss = textField2.getText();
          byte [] bt = ids.getBytes();
          BigInteger id = new BigInteger(bt);
          //by samy byte [] bts = pss.getBytes();
          //BigInteger ps = new BigInteger(bts);
     int mStrength = 16;
     SecureRandom mSecureRandom = new SecureRandom();
     BigInteger p = new BigInteger(mStrength, 16, mSecureRandom);
     System.out.println("p = "+p.toString(16));
     BigInteger g = new BigInteger(mStrength - 1, mSecureRandom);
     System.out.println("g= "+g.toString(16));
     BigInteger x = new BigInteger(mStrength - 1, mSecureRandom);
     System.out.println("x="+x.toString(16));
     //byte[] bt = id.getBytes();
     BigInteger idb = new BigInteger(bt);
     //System.out.println("id= "+idb.toString(16));
     BigInteger ps = idb.modPow(x, p);
     //String pw = new String("pass = "+ps.toByteArray());
     System.out.println("ps ="+ps.toString(16));
     BigInteger r =null;
BigInteger ONE = BigInteger.valueOf(1L);
BigInteger p_1 = p.subtract(ONE);
SecureRandom sr = new SecureRandom();
do {
r = new BigInteger(p.bitLength(), sr);
} while (r.compareTo(ONE) <= 0 || r.compareTo(p_1) >= 0);
     System.out.println("r= "+r.toString(16));
     BigInteger c1 =idb.modPow(r,p);
     System.out.println("c1= "+c1.toString(16));
     long time = System.currentTimeMillis();
     System.out.println("TIME ="+time);
     BigInteger one = new BigInteger( new Integer(1).toString());
     BigInteger T = new BigInteger( new Long(time).toString());
     BigInteger t =T.xor(ps);
     BigInteger t1 = t.mod(p.subtract(one));
     System.out.println("t="+t1.toString(16));
     BigInteger M = idb.modPow(t1, p);
     System.out.println("M="+M.toString(16));
     int rnd = r.intValue();
     BigInteger c2 =ps.modPow(r,p).multiply(M).mod(p);
     System.out.println("c2 ="+c2.toString(16));
     //(bia[0].modPow(a, p).modInverse(p)).multiply(bia[1]).mod(p);
     BigInteger val1 = (c1.modPow(x,p).modInverse(p)).multiply(c2).mod(p);
     BigInteger val2 = id.modPow(t1,p);
     System.out.println(val1.toString(16));
     System.out.println(val2.toString(16));
send s=new send();
// }catch( IOException e){
//System.out.println("Exception caught ") ; }     
//     catch( Exception e){
//System.out.println("Exception caught ") ; }               
     void button2_ActionPerformed(java.awt.event.ActionEvent event)
          textField1.setText("");
          textField2.setText("");
     void button3_ActionPerformed(java.awt.event.ActionEvent event)
     {   Security s1 = null;
          try
System.out.println("this is in Smart ");
     //Create a new instance of our application's frame, and make it visible.
          s1 = new Security();
          s1.setVisible(true);
          catch (Throwable t)
               System.err.println(t);
               t.printStackTrace();
               //Ensure the application exits with an error condition.
               System.exit(1);
          //s1.dispose();     

Answer 1

Hi SaMolPP,
You should try to use the existing ULS logging, following article is for 2010 but should also work in 2013 :
http://geekswithblogs.net/venkatx5/archive/2010/12/09/how-to-use-uls-in-sharepoint-2010-for-custom-code.aspx
No additional lists or databases needed.
Hope this helps