Implementasi Algoritma Elgamal Dengan Pembangkit Bilangan Prima Lehmann Dan Algoritma Least Significant Bit (Lsb) Dengan Cover Image Bitmap Untuk Keamanan Data Text

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LISTING PROGRAM

//FinalElgamalLsb.java

package finalelgamal.lsb;

public class FinalElgamalLsb {

public static void main(String[] args) { MenuUtama menu_utama=new MenuUtama(); menu_utama.setVisible(true);

} }

//MenuUtama.java

import com.sun.glass.ui.Application; import javax.swing.JFrame;

public class MenuUtama extends javax.swing.JFrame {

/** Creates new form MenuUtama */ public MenuUtama() {

initComponents(); }

@SuppressWarnings("unchecked")

// <editor-fold defaultstate="collapsed" desc="Generated Code"> private void initComponents() {

jLabel1 = new javax.swing.JLabel(); jLabel2 = new javax.swing.JLabel(); jLabel3 = new javax.swing.JLabel(); jLabel4 = new javax.swing.JLabel(); jMenuBar1 = new javax.swing.JMenuBar(); jMenu1 = new javax.swing.JMenu();

jMenuItem1 = new javax.swing.JMenuItem(); jMenuItem2 = new javax.swing.JMenuItem(); jMenuItem3 = new javax.swing.JMenuItem(); jMenu2 = new javax.swing.JMenu();

jMenuItem4 = new javax.swing.JMenuItem(); jMenuItem5 = new javax.swing.JMenuItem(); jMenuItem6 = new javax.swing.JMenuItem();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setForeground(new java.awt.Color(255, 102, 255));

setResizable(false);

addWindowListener(new java.awt.event.WindowAdapter() {

public void windowActivated(java.awt.event.WindowEvent evt) { formWindowActivated(evt);

} });

jLabel1.setIcon(new

javax.swing.ImageIcon(getClass().getResource("/resource/background2.png"))) ; // NOI18N

jLabel1.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.b order.BevelBorder.RAISED));

jLabel2.setFont(new java.awt.Font("Times New Roman", 1, 24)); jLabel2.setForeground(new java.awt.Color(255, 255, 255));

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jLabel2.setText(" Program Enkripsi Elgamal dan Steganografi LSB");

jLabel3.setFont(new java.awt.Font("Traditional Arabic", 1, 18)); jLabel3.setForeground(new java.awt.Color(255, 255, 255));

jLabel3.setText("Dibuat Oleh : Hermanda I.T. Simamora [0814010079]");

jLabel4.setText("Copyright@HermandaSimamora& Ilmu Komputer USU");

jMenu1.setText("Program");

jMenuItem1.setText("Bangkitkan Kunci");

jMenuItem1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jMenuItem1ActionPerformed(evt);

} });

jMenu1.add(jMenuItem1);

jMenuItem2.setText("Enkripsi & Sisipkan ");

} });

jMenuItem3.setText("Ekstraksi & Dekripsi ");

} });

jMenuBar1.add(jMenu1);

jMenu2.setText("Help");

jMenuItem4.setText("About");

} });

jMenuItem5.setText("Cara penggunaan");

} });

jMenuItem6.setText("Keluar");

}

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});

jMenuBar1.add(jMenu2);

setJMenuBar(jMenuBar1);

private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) { PembangkitKunci menu_bangkitkankunci = new PembangkitKunci();

menu_bangkitkankunci.show(); this.dispose();

}

private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) { EnkripsidanHide menu_enkripsihide =new EnkripsidanHide();

menu_enkripsihide.show(); this.dispose();

}

private void jMenuItem3ActionPerformed(java.awt.event.ActionEvent evt) { EkstraksidanDekripsi menu_ektraksidekripsi = new EkstraksidanDekripsi();

menu_ektraksidekripsi.show(); this.dispose();

}

private void formWindowActivated(java.awt.event.WindowEvent evt) { // TODO add your handling code here:

}

private void jMenuItem4ActionPerformed(java.awt.event.ActionEvent evt) { About menu_about=new About();

menu_about.show(); this.dispose();

}

private void jMenuItem5ActionPerformed(java.awt.event.ActionEvent evt) { CaraPenggunaan menu_penggunaan=new CaraPenggunaan();

menu_penggunaan.show(); this.dispose();

}

private void jMenuItem6ActionPerformed(java.awt.event.ActionEvent evt) { System.exit(0);

} public static void main(String args[]) { try {

for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {

if ("Nimbus".equals(info.getName())) {

javax.swing.UIManager.setLookAndFeel(info.getClassName()); break;

} }

} catch (ClassNotFoundException ex) {

java.util.logging.Logger.getLogger(MenuUtama.class.getName()).log(java.util .logging.Level.SEVERE, null, ex);

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} catch (InstantiationException ex) {

} catch (IllegalAccessException ex) {

} catch (javax.swing.UnsupportedLookAndFeelException ex) {

}

//</editor-fold>

/* Create and display the form */

java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {

new MenuUtama().setVisible(true); }

}); }

// Variables declaration - do not modify private javax.swing.JLabel jLabel1;

private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JMenu jMenu1; private javax.swing.JMenu jMenu2;

private javax.swing.JMenuBar jMenuBar1; private javax.swing.JMenuItem jMenuItem1; private javax.swing.JMenuItem jMenuItem2; private javax.swing.JMenuItem jMenuItem3; private javax.swing.JMenuItem jMenuItem4; private javax.swing.JMenuItem jMenuItem5; private javax.swing.JMenuItem jMenuItem6;

// End of variables declaration }

//PembangkitKunci.java

import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; import java.math.BigInteger; import java.util.Arrays; import java.util.Collections; import java.util.Random; import java.util.Scanner;

import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JOptionPane;

public class PembangkitKunci extends javax.swing.JFrame {

/** Creates new form PemabangkiKunci */ public PembangkitKunci() {

initComponents();

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}

public static int modulo(int a, int b,int c ){ int d;

int e;

int a1 = a ; int p = 1;

while (b > 0) { if (b % 2 !=0){ p *= a1;

d = p % c; p = d; } b/=2;

e= (a1 * a1) % c; a1=e;

}

return p; }

public static int isPrimitive(int a, int b) { int d;

int result [] = new int [b]; // array baru untuk result int i;

String R="";

String Result ="";

for (i=1 ; i<b; i++){

result[i]=modulo(a,i,b); R += i+" ";

Result += result[i]+" ";

}

System.out.println("nilai R :"+R);

//System.out.println("nilai result : "+Result); String data=Result;

String[] numbers = data.split(" ");

Integer[] intValues = new Integer[numbers.length]; for (int h = 0; h < numbers.length; h++) {

intValues[h] = Integer.parseInt(numbers[h].trim()); }

Collections.sort(Arrays.asList(intValues));

// Mengembalikan nomor yang berurutan ke string menggunakan String Builde object

// StringBuilder object. Prints the sorted string numbers. //

StringBuilder builder = new StringBuilder(); for (int h = 0; h < intValues.length; h++) { Integer intValue = intValues[h];

builder.append(intValue);

if (h < intValues.length - 1) { builder.append(" ");

} }

System.out.println("After = " + builder.toString()); if (R.contains(builder.toString())){

d=a; } else { d=0;

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}

return d; }

public static int checkPrima(int prima) { Random rand = new Random(4);

Scanner input = new Scanner(System.in);

int testNumber[] = new int [13]; testNumber[0] = 2;

testNumber[1] = 3; testNumber[2] = 5; testNumber[3] = 7; testNumber[4] = 11; testNumber[5] = 13; testNumber[6] = 17; testNumber[7] = 19; testNumber[8] = 23; testNumber[9] = 29; testNumber[10] = 31; testNumber[11] = 37; testNumber[12] = 41;

int bilanganRandom; int result = 0; int randPrime; int m;

int p;

int statue = 1;

for (int counter = 0 ; counter < 6 ; counter++) //menguji hingga 6 kali pakah menhasilkan 1 atau p-1

{

bilanganRandom = rand.nextInt(12); //mengacak bilangan random randPrime = testNumber[bilanganRandom]; //mengenerate array testnumber[13] dan menginiliasikan menjadi rendPrime

if (!(randPrime == prima)){ //mengecek apakah array yang digenerate sama dengan bilangan prima

//pangkat = modExp(randPrime,(prima-1)/2, prima); //result = pangkat % prima;

result = modulo (randPrime, (prima-1)/2, prima ) ; if (!(result == 1 || result == prima-1)){

statue = -1; break;

} } }

if (statue == -1){ prima = 0; } else {

prima = prima; }

return prima;

}

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jLabel1 = new javax.swing.JLabel();

jSeparator2 = new javax.swing.JSeparator(); jLabel2 = new javax.swing.JLabel();

jTextField1 = new javax.swing.JTextField(); jLabel4 = new javax.swing.JLabel();

jTextField3 = new javax.swing.JTextField(); jButton1 = new javax.swing.JButton();

jButton2 = new javax.swing.JButton(); jButton3 = new javax.swing.JButton(); jButton4 = new javax.swing.JButton(); jButton5 = new javax.swing.JButton(); jLabel6 = new javax.swing.JLabel();

jTextField4 = new javax.swing.JTextField(); jTextField5 = new javax.swing.JTextField(); jButton6 = new javax.swing.JButton();

jButton7 = new javax.swing.JButton();

jLabel1.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel1.setText("Fungsi Untuk Membangkitkan Kunci Enkripsi dan Dekripsi");

jLabel2.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel2.setText("Fungsi Untuk Membangkitkan Sebuah Bilangan Prima ");

jLabel3.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel3.setText("Masukkan Sebuah Kunci");

jLabel4.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel4.setText("Kunci Publik");

jLabel5.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel5.setText("Kunci Privat");

jButton1.setText("Generate");

jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt);

} });

jButton2.setText("Save");

} });

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jButton4.setText("Clear");

} });

jButton5.setText("Menu Utama");

} });

jLabel6.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel6.setText("Masukkan Sebuah Bilangan");

jButton6.setText("Next Prime");

} });

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { int p= 0;

int t; //variabel bilangan acak untuk bilangan prima int prima = 0; //inisialisasi bilagan prima (p) int alpha=0; // inisialisasi bilanga alpha (α)

int t1; //variabel bilangan acak untuk primitive root int d=0; // vaiabel untuk perulangan while

int a=0; //variabel kunci prvat

BigInteger b=new BigInteger("0"); //alpha pangkat a String result;

String result1;

a = Integer.parseInt(jTextField1.getText()); //System.out.println(" nilai kunci " +key); while (p==0){

Random RandomGenerator = new Random(); //inilialisasi bilangan random

int randomInt = RandomGenerator.nextInt(30000); // acak nilai hingga batas 300000000

t = randomInt;

if (t % 2 == 0) { //apabila bilangan yang digenerate genap maka akan dibangkitkan kembali

p =0;

System.out.print(" " + p); } else {

prima= checkPrima(t); //mengecek bilangan yang dibangkitkan apakah prima atau tidak

p=prima; //masukkan nilai prima ke variabel p

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System.out.println("generated " +prima); }

}

while (d==0){

Random RandomGenerate = new Random(); //inilialisasi bilangan random int randomInt1 = RandomGenerate.nextInt(a-1); //generate sebuah bilangan dengan nilai prima - 1

t1 = randomInt1;

alpha=isPrimitive(t1,a); // memanggil method isPrimitive untuk memeriksa apakah primitve root atau tidak

d=alpha; if(d!=0) break;

Random RandomGenerate = new Random();

int randomInt1 = RandomGenerate.nextInt(3000); // acak nilai hingga batas 300000000

}

BigInteger x = BigInteger.valueOf(alpha); BigInteger y = BigInteger.valueOf(a); BigInteger s = BigInteger.valueOf(prima); b = x.modPow(y, s);

result=prima+" "+alpha+" "+b; result1=prima+" "+a;

jTextField2.setText(result); // menampilkan kunci publik jTextField3.setText(result1); // menampilkan kunci privat }

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) { int p=0;

int prima=0;

int d=Integer.parseInt(jTextField4.getText()); while (p==0){

if (d % 2 == 0) { //apabila bilangan yang digenerate genap maka akan dibangkitkan kembali

p =0; } else {

prima= checkPrima(d); //mengecek bilangan yang dibangkitkan apakah prima atau tidak

p=prima; //masukkan nilai prima ke variabel p }

d++; // menambah variabel d dengan nilai 1 }

jTextField5.setText(String.valueOf(prima)); }

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { FileWriter fw = null;

try {

String nmfile = "kuncipublik.txt"; fw = new FileWriter(nmfile);

BufferedWriter bw = new BufferedWriter(fw); //Membuat objek untuk menulis file

String isiText="";

isiText = jTextField2.getText(); bw.write(isiText);

bw.newLine(); bw.close(); fw.close();

JOptionPane.showMessageDialog(rootPane, "nilai kunci publik telah tersimpan");

}

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catch (IOException ex) {

Logger.getLogger(PembangkitKunci.class.getName()).log(Level.SEVERE, null, ex);

}

try {

String nmfile = "kunciprivat.txt"; fw = new FileWriter(nmfile);

BufferedWriter bw = new BufferedWriter(fw); //Membuat objek untuk menulis file

String isiText="";

isiText = jTextField3.getText(); bw.write(isiText);

bw.newLine(); bw.close(); fw.close();

JOptionPane.showMessageDialog(rootPane, "nilai kunci privat telah tersimpan");

}

Logger.getLogger(PembangkitKunci.class.getName()).log(Level.SEVERE, null, ex);

}

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) { jTextField1.setText("");

jTextField2.setText(""); jTextField3.setText("");

}

jTextField5.setText("");

}

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) { MenuUtama menu_utama=new MenuUtama();

menu_utama.show(); this.dispose();

} public static void main(String args[]) { setting code (optional) ">

with the default look and feel. try {

} }

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java.util.logging.Logger.getLogger(PembangkitKunci.class.getName()).log(jav a.util.logging.Level.SEVERE, null, ex);

}

//</editor-fold>

public void run() {

new PembangkitKunci().setVisible(true); }

}); }

// Variables declaration - do not modify private javax.swing.JButton jButton1;

private javax.swing.JButton jButton2; private javax.swing.JButton jButton3; private javax.swing.JButton jButton4; private javax.swing.JButton jButton5; private javax.swing.JButton jButton6; private javax.swing.JButton jButton7; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JLabel jLabel5; private javax.swing.JLabel jLabel6;

private javax.swing.JSeparator jSeparator2; private javax.swing.JSeparator jSeparator3; private javax.swing.JTextField jTextField1; private javax.swing.JTextField jTextField2; private javax.swing.JTextField jTextField3; private javax.swing.JTextField jTextField4; private javax.swing.JTextField jTextField5;

//EnkripsidanHide.java

import addon.CustomFileFilter; import addon.LabelAccessory;

import java.awt.ComponentOrientation; import java.awt.Image;

import java.awt.Toolkit;

import java.awt.image.BufferedImage; import java.awt.image.ColorModel;

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import java.awt.image.DataBuffer; import java.awt.image.DataBufferByte; import java.awt.image.Raster;

import java.awt.image.SampleModel; import java.awt.image.WritableRaster; import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader; import java.io.IOException; import java.math.BigInteger; import java.util.Locale; import java.util.Random; import java.util.Scanner;

import java.util.logging.Level; import java.util.logging.Logger; import javax.imageio.ImageIO; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JFileChooser; import javax.swing.JOptionPane;

import javax.swing.filechooser.FileFilter;

import javax.swing.filechooser.FileNameExtensionFilter; public class EnkripsidanHide extends javax.swing.JFrame { private static int PREFERRED_WIDTH;

private static int PREFERRED_HEIGHT; private BufferedImage oriIMG = null; private BufferedImage plainIMG = null; private ImageIcon ikon;

private BufferedImage cipherIMG = null; private DataBuffer dBuf;

private byte [] msgb;

private WritableRaster raster; private ColorModel cm;

private SampleModel sm; private long speedElgamal; boolean ispremulti;

byte[] pixels; byte[] sisipkan; String newData; String filetype;

String finalContainer = ""; String a;

String b;

byte[] pixels1 ; String pixels2;

String [] pixels3 = new String [100000000]; /** Creates new form EnkripsidanHide */ public EnkripsidanHide() {

initComponents(); }

public static BigInteger modulo(BigInteger a, BigInteger b,BigInteger c ){

BigInteger d = new BigInteger("1"); //inisialisasi variabel d dengan nilai 1

BigInteger a1 = a ; //memberikan nilai a1 dengan nilai a

BigInteger p = new BigInteger("1"); // inisialisasi variabel p dengan nilai 1

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for(int i = 1; i <= b.intValue(); i++) { // perulangan dimana nilai i 1 hingga lebih kecil atau sma dgn dengan nilai b

p= p.multiply(a1);// menghitung nilai p denga cara mengalikan p dngn a1 d = p.mod(c); // menghitung nilai d dengan cara memodulokan dengan nilai c

p = d;

}

return p; }

private String byteToBinary(byte byteData){ String binary = "";

for (int iteration = 0 ; iteration < Byte.SIZE ; iteration++ ){ binary+=(byteData & 0x80) == 0 ? '0' : '1';

byteData <<= 1; }

return binary; }

public static String Enkripsi( String s,String t){ String textString=s;

int p =textString.length(); String textString1=t;

int testNumber [] = new int[p];

BigInteger result [][]= new BigInteger [p][2]; BigInteger prima = new BigInteger("0");

BigInteger apa = new BigInteger("0"); //alpha pangkat a BigInteger alpha = new BigInteger("0");

BigInteger e = new BigInteger("0"); BigInteger y = new BigInteger("0"); BigInteger z = new BigInteger("1"); String hasil = "";

String hasil1 = ""; String hasil2 = ""; String hasil3 = "";

String array[] = textString1.split("\\s"); int a=0;

int f=0; int k=0;

for (int count = 0; count < array.length; count++) { if (!array[count].isEmpty()) {

a=Integer.parseInt(array[0]); f=Integer.parseInt(array[1]);

k=Integer.parseInt(array[2]); }

}

prima=BigInteger.valueOf(a); alpha=BigInteger.valueOf(f); apa=BigInteger.valueOf(k);

for(int i = 0; i < textString.length(); i++) {

Random RandomGenerate = new Random(); //inilialisasi bilangan random

int randomInt1 = RandomGenerate.nextInt(prima.intValue()-1); BigInteger b = BigInteger.valueOf(randomInt1);//convert integer randomInt1 to BigInteger

testNumber[i] = (int)textString.charAt(i); //convert char to decimal

BigInteger d =BigInteger.valueOf(testNumber[i]) ;

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result [i][0]=modulo(alpha,b,prima) ;

BigInteger sementara= modulo (apa,b,prima); BigInteger sementara1= d.multiply(sementara);

result [i][1]=modulo(sementara1,z,prima); //m x(a pangkat b) mdulo p

hasil +=result[i][0]+" "+result[i][1]+" "; }

return hasil; }

jFileChooser1 = new javax.swing.JFileChooser(); jFileChooser2 = new javax.swing.JFileChooser(); jFileChooser3 = new javax.swing.JFileChooser(); jLabel1 = new javax.swing.JLabel();

jScrollPane1 = new javax.swing.JScrollPane(); jTextArea1 = new javax.swing.JTextArea(); jLabel3 = new javax.swing.JLabel();

jTextField1 = new javax.swing.JTextField(); jButton1 = new javax.swing.JButton();

jButton2 = new javax.swing.JButton(); jLabel4 = new javax.swing.JLabel(); jLabel5 = new javax.swing.JLabel(); jButton3 = new javax.swing.JButton(); jButton4 = new javax.swing.JButton(); jButton5 = new javax.swing.JButton(); jButton6 = new javax.swing.JButton(); jLabel6 = new javax.swing.JLabel(); jLabel7 = new javax.swing.JLabel(); jButton7 = new javax.swing.JButton(); jButton8 = new javax.swing.JButton();

jSeparator2 = new javax.swing.JSeparator(); jTextField2 = new javax.swing.JTextField(); jLabel8 = new javax.swing.JLabel();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setBackground(new java.awt.Color(102, 255, 255));

jLabel1.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel1.setText("Fungsi Untuk Meng-Enkripsi dan Menyisipkan Pesan Ke Gambar");

jLabel2.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel2.setText("Pesan");

jTextArea1.setColumns(20); jTextArea1.setRows(5);

jScrollPane1.setViewportView(jTextArea1);

jLabel3.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel3.setText("Kunci");

jButton1.setText("Browse");

}

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});

} });

jLabel4.setText("Gambar");

jLabel5.setBackground(new java.awt.Color(204, 255, 102)); jLabel5.setForeground(new java.awt.Color(153, 255, 153)); jLabel5.setIcon(new

javax.swing.ImageIcon(getClass().getResource("/resource/label.png"))); // NOI18N

} });

jButton4.setText("Enkripsi & Penyisipan");

} });

jLabel6.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel6.setText("Hasil Enkripsi & Steganografi");

jLabel7.setIcon(new

} });

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} });

jLabel8.setText("Waktu Ekripsi dan Sisipkan");

jLabel9.setText("Milli Second");

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { FileFilter ft = new FileNameExtensionFilter("Text Files", "txt");

int returnVal = jFileChooser1.showOpenDialog( this ); String file_name = "";

if (returnVal == javax.swing.JFileChooser.APPROVE_OPTION) { java.io.File file = jFileChooser1.getSelectedFile( );

try {

Scanner input = new Scanner (file); while (input.hasNext()){

file_name+= input.nextLine() + "\n"; }

} catch (IOException ex) {

Logger.getLogger(EnkripsidanHide.class.getName()).log(Level.SEVERE, null, ex); }

jTextArea1.setText(file_name); }

}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { String str = null;

BufferedReader br = null;

JFileChooser chooser=new JFileChooser(); int returnVal = chooser.showOpenDialog(null); if(returnVal == JFileChooser.APPROVE_OPTION) { try {

File file = chooser.getSelectedFile();

br = new BufferedReader(new FileReader(file)); String st = "";

while ((st = br.readLine()) != null) { str= st;

}

br.close(); }

Logger.getLogger(EnkripsidanHide.class.getName()).log(Level.SEVERE, null, ex);

}

} jTextField1.setText(str);

}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) { PREFERRED_WIDTH = jLabel5.getWidth();

PREFERRED_HEIGHT = jLabel5.getHeight();

FileFilter filtering = new CustomFileFilter("File Citra Digital (BMP)", new String[] {"BMP"});

jFileChooser2.setAccessory(new LabelAccessory(jFileChooser2));

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jFileChooser1.setFileFilter(filtering);

int status = jFileChooser2.showOpenDialog(null); if (status == JFileChooser.APPROVE_OPTION) {

File selectedFile = jFileChooser2.getSelectedFile();

filetype = jFileChooser2.getTypeDescription(selectedFile); filetype="bmp";

try {

oriIMG = ImageIO.read(new File(selectedFile.getPath())); } catch (IOException ex) {

}

// Tampilkan Citra Digital Ke panelGambar/gbrPanel ikon = new ImageIcon(oriIMG);

if (ikon.getIconWidth()>PREFERRED_WIDTH){ ikon = new

ImageIcon(ikon.getImage().getScaledInstance(PREFERRED_WIDTH, -1, Image.SCALE_DEFAULT));

if (ikon.getIconHeight() > PREFERRED_HEIGHT){

ikon = new ImageIcon(ikon.getImage().getScaledInstance(-1, PREFERRED_HEIGHT, Image.SCALE_DEFAULT));

} }

jLabel5.setIcon(ikon);

} else if (status == JFileChooser.CANCEL_OPTION) { oriIMG = null;

jLabel3.setIcon(null); filetype="";

}

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) { //Proses Enkripsi

String textString = jTextArea1.getText(); String textString1 = "";

long startTime, endTime;

textString1 = jTextField1.getText(); startTime = System.currentTimeMillis(); String msg=Enkripsi(textString,textString1);

//proses Steganografi if (oriIMG==null){

JOptionPane.showMessageDialog(null, "Buka File Citra !", "Aplikasi Kriptografi&Steganography Citra Digital", 1);

} else {

dBuf = oriIMG.getData().getDataBuffer(); raster = oriIMG.getRaster();

cm = oriIMG.getColorModel(); sm = raster.getSampleModel();

ispremulti = oriIMG.isAlphaPremultiplied();

pixels=((DataBufferByte)oriIMG.getRaster().getDataBuffer()).getData(); String q="";

if ("".equals(jTextField1.getText())) {

JOptionPane.showMessageDialog(null, "Kata sandi masih kosong !", "Aplikasi Kriptografi Citra Digital", 1);

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} else {

String msb=""; // String msg; String msgbt="";

// msg = jTextField1.getText(); msgb=msg.getBytes();

for (int iter = 0 ; iter < msg.length() ; iter++){ msb =byteToBinary(msgb[iter]);

msgbt += msb+ ""; }

System.out.println(msb);

System.out.println("nilai bit-bit pesan"+msgbt); String e="";

String f="";

int d=msgbt.length() ;

System.out.println("panjang yang disisipkan :"+d); String b=Integer.toBinaryString(d);

if (b.length()!=21){ int c=21-b.length(); for(int i=0;i<c;i++){ e +=0;

} f=e+b; }

System.out.println("nilai bit dari panjang "+f); int h=pixels.length-1;

String r="";

for(int i=0; i<f.length();i++ ){ r += f.charAt(i);

if(r.length()==7){

String sementara=r;

pixels[h]=Byte.parseByte(sementara, 2); q +=pixels[h]+ " ";

h--; r=""; }

}

System.out.println("nilai bit" +q); System.out.println("panjang pixel" +h);

String bitsContainer; String newBitsContainer;

int indexOfByteInContainer = 0;

if (pixels.length < msgbt.length() * Byte.SIZE){ System.out.println("Process stop~!");

} else {

String t=""; String s=""; String nilai=""; int i;

for (i=0; i<msgbt.length();i++){

bitsContainer=byteToBinary(pixels[i]);

// System.out.println("nilai bitcontainer" +bitsContainer); newBitsContainer = bitsContainer.substring(0,6)+

msgbt.charAt(i);

// pixels [i]=Byte.decode(v);

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pixels [i]=Byte.parseByte(newBitsContainer,2); // System.out.println(pixels[i]);

// System.out.println(" nilai bit baru : "+newBitsContainer); nilai +=newBitsContainer +" ";

// pixels [i]=Byte.parseByte(newBitsContainer, 2); }

System.out.println("bit yang telah diubah"+nilai);

String Result=""; for (i=0 ; i<100;i++){ Result +=pixels[i]; }

System.out.println("nilai dari bit yan telah diubah"+Result);

} }

System.out.println("nilai bit yang mau disisipkan" +q);

DataBufferByte db = new DataBufferByte(pixels, dBuf.getSize(), dBuf.getOffset());

WritableRaster wraster = Raster.createWritableRaster(sm, db, null);

cipherIMG = new BufferedImage(cm,wraster,ispremulti, null); ikon = new

ImageIcon(Toolkit.getDefaultToolkit().createImage(cipherIMG.getSource())); if (ikon.getIconWidth()>PREFERRED_WIDTH){

ikon = new

} }

endTime = System.currentTimeMillis(); speedElgamal = endTime - startTime;

String time = String.valueOf(speedElgamal); jTextField2.setText(time);

JOptionPane.showMessageDialog(null, "Citra selesai dienkripsi", "Aplikasi Kriptografi Citra Digital", 1);

} }

jTextArea1.setText(""); ImageIcon icon =new

ImageIcon("C:/Users/herman/Documents/NetBeansProjects/FinalElgamal&Lsb/src/ resource/label.png");

jLabel5.setIcon(icon); //ImageIcon

gambar=C:/Users/herman/Documents/NetBeansProjects/FinalElgamal&Lsb/src/reso urce/label.png;

}

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) { // dekralasikan ukuran label gambar

// periksa apakah jLOutput kosong atau tidak

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if (jLabel7.getIcon() != null) {

//jFCSave.setAccessory(new LabelAccessory(jFCSave)); jFileChooser3.setFileFilter(filtering);

int status = jFileChooser3.showSaveDialog(null); if (status == JFileChooser.APPROVE_OPTION) { try {

String strfile =

jFileChooser3.getSelectedFile().getAbsolutePath()+"."+filetype; // Encode as a JPEG

if (jFileChooser3.getSelectedFile().exists()){

JOptionPane.showMessageDialog(null, "File Sudah Ada, Penyimpanan dibatalkan", "Peringatan", 2);

} else {

ImageIO.write(cipherIMG, filetype, new File (strfile)); JOptionPane.showMessageDialog(null, "File berhasil disimpan", "Informasi", 1);

}

} catch (IOException ex) {

}

} else if (status == JFileChooser.CANCEL_OPTION) { // do nothing

} } else {

JOptionPane.showMessageDialog(null, "Citra Output Masih Kosong !", "Informasi", 1);

}

ImageIcon icon =new

jLabel7.setIcon(icon);

}

public static void main(String args[]) { try {

} }

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java.util.logging.Logger.getLogger(EnkripsidanHide.class.getName()).log(jav a.util.logging.Level.SEVERE, null, ex);

}

//</editor-fold>

public void run() {

new EnkripsidanHide().setVisible(true); }

}); }

private javax.swing.JButton jButton2; private javax.swing.JButton jButton3; private javax.swing.JButton jButton4; private javax.swing.JButton jButton5; private javax.swing.JButton jButton6; private javax.swing.JButton jButton7; private javax.swing.JButton jButton8;

private javax.swing.JFileChooser jFileChooser1; private javax.swing.JFileChooser jFileChooser2; private javax.swing.JFileChooser jFileChooser3; private javax.swing.JLabel jLabel1;

private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JLabel jLabel5; private javax.swing.JLabel jLabel6; private javax.swing.JLabel jLabel7; private javax.swing.JLabel jLabel8; private javax.swing.JLabel jLabel9;

private javax.swing.JScrollPane jScrollPane1; private javax.swing.JSeparator jSeparator1; private javax.swing.JSeparator jSeparator2; private javax.swing.JTextArea jTextArea1; private javax.swing.JTextField jTextField1; private javax.swing.JTextField jTextField2;

//EktraksidanDekripsi.java

import addon.CustomFileFilter;

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import addon.LabelAccessory;

import finalelgamal.lsb.EnkripsidanHide; import java.awt.Image;

import java.awt.image.BufferedImage; import java.awt.image.ColorModel; import java.awt.image.DataBuffer; import java.awt.image.DataBufferByte; import java.awt.image.SampleModel; import java.awt.image.WritableRaster; import java.io.BufferedReader;

import java.io.BufferedWriter; import java.io.File;

import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.math.BigInteger; import java.util.logging.Level; import java.util.logging.Logger; import javax.imageio.ImageIO; import javax.swing.ImageIcon; import javax.swing.JFileChooser; import javax.swing.JOptionPane;

import javax.swing.filechooser.FileFilter;

public class EkstraksidanDekripsi extends javax.swing.JFrame {

private static int PREFERRED_WIDTH; private static int PREFERRED_HEIGHT; private BufferedImage oriIMG = null; private BufferedImage plainIMG = null; private ImageIcon ikon;

private BufferedImage cipherIMG = null; private DataBuffer dBuf;

private byte [] msgb;

private WritableRaster raster; private ColorModel cm;

private SampleModel sm; private long speedElgamal; long startTime, endTime; boolean ispremulti; byte[] pixels; byte[] sisipkan;

private String HasilDekripsi=""; String newData;

String filetype;

/** Creates new form EkstraksidanDekripsi */ public EkstraksidanDekripsi() {

initComponents(); }

private String ByteToBit (int i){ String Bit="";

String temp7="";

String temp6=Integer.toBinaryString(i); if(temp6.length() !=7){

int c=7-temp6.length(); for (int j=0;j<c;j++){ temp7 +=0;

}

temp6 =temp7+temp6;

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}

return temp6; }

private String byteToBinary(byte byteData){ String binary = "";

for (int iteration = 0 ; iteration < Byte.SIZE ; iteration++ ){ binary+=(byteData & 0x80) == 0 ? '0' : '1';

byteData <<= 1; }

return binary; }

public static BigInteger modulo(BigInteger a, BigInteger b,BigInteger c ){

BigInteger d = new BigInteger("1"); BigInteger a1 = a ;

BigInteger p = new BigInteger("1");

for(int i = 1; i <= b.intValue(); i++) { p= p.multiply(a1);

d = p.mod(c); p = d;

}

return p; }

public static String Dekripsi (String pesan, String kunci){ String string = "";

string=pesan;

String textString1 = ""; textString1=kunci;

String x= SplitGanjil(string); String y= SplitGenap(string); int s=string.length();

String array[] = x.split("\\s"); String array1[] = y.split("\\s");

String array2[] = textString1.split("\\s"); int d=0;

int e=0;

BigInteger f = new BigInteger("0");

BigInteger p = new BigInteger("0"); //variabel bilangan prima BigInteger a = new BigInteger("0");// variabel kunci privat BigInteger z = new BigInteger("1");

String hasil=""; String hasilakhir=""; String hasilakhir1=""; String hasilakhir2=""; String hasilakhir3="";

BigInteger result [][]= new BigInteger [s][2]; BigInteger result1 [][]= new BigInteger [s][2]; int aa=0;

int bb=0;

for (int count = 0; count < array2.length; count++) { if (!array[count].isEmpty()) {

aa=Integer.parseInt(array2[0]); bb=Integer.parseInt(array2[1]); }

}

p=BigInteger.valueOf(aa);

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a=BigInteger.valueOf(bb);

for (int count = 0; count < array.length; count ++) { if (!(array[count].isEmpty()&&array1[count].isEmpty())) {

d=Integer.parseInt(array[count]); // mengubah string ke bentuk integer

e=Integer.parseInt(array1[count]); // mengubah string ke bentuk integer

BigInteger h=p.subtract(z);

BigInteger t=h.subtract(a);//p-1-a

BigInteger i=BigInteger.valueOf(d); //convert int d to biginteger i hasilakhir3 += i + " ";

result [count][0]=modulo(i,t,p); //(α^b)^(p-1-a) ( mod p) BigInteger j= result [count][0]; // Convert array result ke big intejer j

BigInteger k=BigInteger.valueOf(e); // convert integer e ke Biginteger k

BigInteger n =j.multiply(k); result [count][1]=modulo(n,z,p) ; BigInteger r=result [count][1]; int u= r.intValue();

char v=(char) u; //convert integer to char hasilakhir1 += v;

hasilakhir += result [count][0] + " "; hasil +=result[count][1] +" ";

} }

return hasilakhir1; }

// Fungsi untuk memecahkan array menjadi 2 bagian dan bagian dengan index ganjil

public static String SplitGanjil(String string){ String array[] = string.split("\\s");

String hasil=""; int d=0;

for (int count = 0; count < array.length; count +=2) { if (!array[count].isEmpty()) {

// d=Integer.parseInt(array[count]); hasil += array [count]+ " ";

} }

return hasil; }

// Fungsi untuk memecahkan array menjadi 2 bagian dan bagian dengan index genap

public static String SplitGenap(String string){ // String string = "1 2 3 4 5 6 ";

String array[] = string.split("\\s"); String hasil="";

int d=0;

for (int count = 1; count < array.length; count +=2) { if (!array[count].isEmpty()) {

// d=Integer.parseInt(array[count]); hasil += array [count]+ " ";

} }

return hasil; }

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jFileChooser1 = new javax.swing.JFileChooser(); jLabel1 = new javax.swing.JLabel();

jLabel3 = new javax.swing.JLabel(); jLabel4 = new javax.swing.JLabel();

jScrollPane1 = new javax.swing.JScrollPane(); jTextArea1 = new javax.swing.JTextArea(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jButton3 = new javax.swing.JButton(); jButton4 = new javax.swing.JButton(); jButton5 = new javax.swing.JButton();

jButton6 = new javax.swing.JButton(); jLabel6 = new javax.swing.JLabel();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setBackground(new java.awt.Color(255, 51, 51));

jLabel1.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel1.setText("Fungsi Untuk Ekstraksi dan Dekripsi Pesan");

jLabel2.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel2.setText("Gambar");

jLabel3.setIcon(new

jLabel4.setFont(new java.awt.Font("Times New Roman", 0, 14)); jLabel4.setText("Kunci");

jTextArea1.setColumns(20); jTextArea1.setRows(5);

jButton1.setText("Ekstraksi&Dekripsi");

} });

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} });

jLabel5.setFont(new java.awt.Font("Times New Roman", 0, 14)); // NOI18N

jLabel5.setText("Pesan");

} });

jLabel6.setFont(new java.awt.Font("Times New Roman", 0, 14)); // NOI18N

jLabel6.setText("Time");

jLabel7.setText("Mili Second");

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {

PREFERRED_WIDTH = jLabel3.getWidth(); PREFERRED_HEIGHT = jLabel3.getHeight();

jFileChooser1.setAccessory(new LabelAccessory(jFileChooser1)); jFileChooser1.setFileFilter(filtering);

int status = jFileChooser1.showOpenDialog(null); if (status == JFileChooser.APPROVE_OPTION) {

File selectedFile = jFileChooser1.getSelectedFile();

filetype = jFileChooser1.getTypeDescription(selectedFile); filetype="bmp";

try {

oriIMG = ImageIO.read(new File(selectedFile.getPath())); } catch (IOException ex) {

}

// Tampilkan Citra Digital Ke panelGambar/gbrPanel ikon = new ImageIcon(oriIMG);

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if (ikon.getIconWidth()>PREFERRED_WIDTH){ ikon = new

} }

} else if (status == JFileChooser.CANCEL_OPTION) { oriIMG = null;

jLabel3.setIcon(null); filetype="";

}

try {

String textString = jTextArea1.getText(); String nmfile = "plaintext.txt";

fw = new FileWriter(nmfile);

BufferedWriter bw = new BufferedWriter(fw); String isiText="";

isiText = jTextArea1.getText(); bw.write(isiText);

bw.newLine();

bw.write(String.valueOf(textString.length())); bw.close();

fw.close();

JOptionPane.showMessageDialog(rootPane, "plaintext telah tersimpan");

}

Logger.getLogger(EkstraksidanDekripsi.class.getName()).log(Level.SEVERE, null, ex);

}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { if (oriIMG==null){

JOptionPane.showMessageDialog(null, "Buka File Citra !", "Aplikasi Kriptografi dan Steganografi", 1);

} else {

dBuf = oriIMG.getData().getDataBuffer(); raster = oriIMG.getRaster();

cm = oriIMG.getColorModel(); sm = raster.getSampleModel();

ispremulti = oriIMG.isAlphaPremultiplied();

pixels=((DataBufferByte)oriIMG.getRaster().getDataBuffer()).getData(); byte [] s ;

String d=""; String data=""; String hasil=""; String hasilakhir="";

String ahasil [] = new String[1000000];

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int lengthhasil=0; int e = 0;

int panjang; String temp=""; String jumlah="";

startTime = System.currentTimeMillis(); panjang = pixels.length-1;

for (int i=panjang;i>=panjang-2;i--){ temp=Byte.toString(pixels[i]); jumlah +=temp +" ";

}

System.out.println(jumlah);

String array[] = jumlah.split("\\s"); String temp1="";

String temp2="";

for (int i = 0; i < array.length;i++ ) { if (!array[i].isEmpty()) {

int j=Integer.parseInt(array[i]); temp1=ByteToBit(j);

System.out.println(temp1); }

temp2 +=temp1;

}

panjang =Integer.parseInt(temp2, 2); System.out.println(temp2);

System.out.println("panjang pesan yang disisipkan : "+panjang); String temp3;

String bitsContainer=""; String ContainerData=""; for (int i=0;i<panjang;i ++){

bitsContainer=byteToBinary(pixels[i]); ContainerData +=bitsContainer;

}

int panjangContainer=ContainerData.length();

System.out.println("Panajng COntainer"+panjangContainer); System.out.println("Data Container :"+ContainerData); String Data="";

String DataAkhir="";

for (int i=7;i<ContainerData.length();i +=8){ Data +=ContainerData.charAt(i);

if (Data.length()==8){ String Sementara=Data;

int j=Integer.parseInt(Sementara, 2); char v=(char) j;

ahasil [lengthhasil]=String.valueOf(v); DataAkhir += ahasil [lengthhasil]; Data ="";

lengthhasil++; }

}

// proses dekripsi String string="";

string =jTextField1.getText(); String textString1 = "";

textString1 = DataAkhir;

HasilDekripsi=Dekripsi(textString1,string);

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}

endTime = System.currentTimeMillis(); speedElgamal = endTime - startTime;

String time = String.valueOf(speedElgamal); jTextField2.setText(time);

jTextArea1.setText(HasilDekripsi);

}

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) { String str = null;

BufferedReader br = null;

JFileChooser chooser=new JFileChooser(); int returnVal = chooser.showOpenDialog(null); if(returnVal == JFileChooser.APPROVE_OPTION) { try {

File file = chooser.getSelectedFile();

br = new BufferedReader(new FileReader(file)); String st = "";

//int index =0;

while ((st = br.readLine()) != null) { str= st;

// index++; }

br.close(); }

Logger.getLogger(EkstraksidanDekripsi.class.getName()).log(Level.SEVERE, null, ex);

}

jTextField1.setText(str);

}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) { jLabel3.setIcon(null);

jTextField1.setText(""); jTextField2.setText(""); jTextArea1.setText(""); ImageIcon icon =new

jLabel3.setIcon(icon);

}

javax.swing.UIManager.setLookAndFeel(info.getClassName());

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break; }

}

java.util.logging.Logger.getLogger(EkstraksidanDekripsi.class.getName()).lo g(java.util.logging.Level.SEVERE, null, ex);

}

//</editor-fold>

public void run() {

new EkstraksidanDekripsi().setVisible(true); }

}); }

private javax.swing.JButton jButton2; private javax.swing.JButton jButton3; private javax.swing.JButton jButton4; private javax.swing.JButton jButton5; private javax.swing.JButton jButton6;

private javax.swing.JFileChooser jFileChooser1; private javax.swing.JLabel jLabel1;

private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JLabel jLabel5; private javax.swing.JLabel jLabel6; private javax.swing.JLabel jLabel7;

private javax.swing.JScrollPane jScrollPane1; private javax.swing.JSeparator jSeparator1; private javax.swing.JTextArea jTextArea1; private javax.swing.JTextField jTextField1; private javax.swing.JTextField jTextField2;

//about.java

public class About extends javax.swing.JFrame {

/** Creates new form About */ public About() {

initComponents(); }

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jLabel1 = new javax.swing.JLabel(); jLabel2 = new javax.swing.JLabel();

javax.swing.JLabel appDescLabel = new javax.swing.JLabel(); jLabel3 = new javax.swing.JLabel();

jLabel4 = new javax.swing.JLabel(); jButton1 = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setResizable(false);

jLabel1.setIcon(new

javax.swing.ImageIcon(getClass().getResource("/resource/about.png"))) jLabel2.setFont(new java.awt.Font("Times New Roman", 1, 20)); jLabel2.setText("Program Enkripsi dan Steganografi");

appDescLabel.setFont(new java.awt.Font("Times New Roman", 0, 14)); // NOI18N

appDescLabel.setText("<html>Aplikasi dapat Digunakan untuk Mengamankan Data atau informasi yang bersifat rahasia, karena Data atau informasi akan Dienkripsi kemudian disisipkan Ke dalam gambar.

<html>Algoritma yang digunakan untuk Enkripsi adalah Elgamal dan untuk Steganografi adalah Least Significant Bit");

appDescLabel.setHorizontalTextPosition(javax.swing.SwingConstants.LEADING); jLabel3.setIcon(new

javax.swing.ImageIcon(getClass().getResource("/resource/logo fasilkom1.png"))); // NOI18N

jLabel4.setText("Program ini merupakan bagian dari Skripsi S-1 Ilmu Komputer USU");

} });

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { MenuUtama menu_utama= new MenuUtama();

menu_utama.show(); this.dispose(); }

} }

java.util.logging.Logger.getLogger(About.class.getName()).log(java.util.log ging.Level.SEVERE, null, ex);

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}

//</editor-fold>

public void run() {

new About().setVisible(true); }

}); }

private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3;

private javax.swing.JLabel jLabel4; }

//CaraPenggunaan.java

public class CaraPenggunaan extends javax.swing.JFrame {

/** Creates new form CaraPenggunaan */ public CaraPenggunaan() {

initComponents(); }

jScrollPane1 = new javax.swing.JScrollPane(); jTextArea1 = new javax.swing.JTextArea(); jButton1 = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jLabel1.setIcon(new

javax.swing.ImageIcon(getClass().getResource("/resource/guide.png"))) jTextArea1.setColumns(20);

jTextArea1.setEditable(false); jTextArea1.setRows(5);

jTextArea1.setText("Cara Penggunaan Program ini:\n1.Bangkitkan Kunci melalui Menu program->Bangkitkan \n Kunci. Dibagian kanan ada fungsi untuk \n membangkitkan sebuah bilangan prima yang\n akan kita gunakan untuk membangkitkan kunci.\n2.Setelah Kunci dibangkitkan maka akan \n dibangkitkan 2 kunci, yaitu publik dan privat,\n Kemudian save kunci tersebut.\n3.Untuk Meng-Enkripsi dan Menyisipkan Data atau\n Informasi ke Citra,Menu program->Enkripsi&Sisipkan\n Pesan. Browse Pesan yang

berekstensi txt,\n Kemudian Browse Kunci Publik yang telah \n Disimpan, selanjutnya Browse Gambar\n yang berkekstensi Bmp sebagai cover. Klik\n Buton Enkripsi&Sisipkan, Kemudian Save gambar\n yang telah disisipi Pesan.\n4.Untuk memperoleh Kembali Pesan Aslinya, Buka\n Menu program->Ekstrak&Dekripsi.Browse Gambar yang \n Telah Disisipi Pesan, Kemudian

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Browse Kunci \n Privat, Selanjutnya klik Button Ekstrak&Dekripsi.\n Kemudian Save.");

} });