Question

If you cant answer this please dont waste my question. thank you.

This cryptographic program run and produce text screen output. You are to create a GUI that uses the program. Your program (GUI) must allow a user to input of a message to be coded. It must also have an area to show the plaintext, the ciphertext, and the decrypted text. If required by your choice of cryptographic method, the user should have an area to input a key. You should also include instructions to the user on what and how to use your program. Remember user-friendly.

You should not have to rewrite any of the example programs just modify them to use a GUI.

Please add comments to code

import java.util.Scanner;

public class OneTimePadCipher

{

public static String encryptionMessage(String s)

{

int i, j;
int randomBitPattern[] = new int[8];

for (i = 0; i < 7; i++)

{

randomBitPattern[i] = (i % 2 == 0) ? 1 : 0;

}

char asc[] = new char[s.length()];

for (i = 0; i < s.length(); i++)

{

asc[i] = (char) ((int) s.charAt(i));

}

BasicOperation b1 = new BasicOperation();

String cipherText = new String("");

for (i = 0; i < asc.length; i++)

{

int temp = (int) (asc[i]);

int len = b1.decimalToBinary(temp);
int bintemp[] = new int[7];
int xorlen;

if (len == 7)

{

for (j = 1; j <= len; j++)

{

bintemp[j - 1] = b1.binaryArrayAtPosition(j);

}

// XOR Operation

xorlen = b1.xorop(bintemp, randomBitPattern, len);
}

else

{

// System.out.println("\n less than 7 :"+len);

bintemp[0] = 0;

for (j = 1; j <= len; j++)

{

bintemp[j] = b1.binaryArrayAtPosition(j);

}

// XOR Operation

xorlen = b1.xorop(bintemp, randomBitPattern, len + 1);

}

int xor[] = new int[xorlen];

for (j = 0; j < xorlen; j++)

{

xor[j] = b1.xorinArrayAt(j);

cipherText = cipherText + xor[j];

}

cipherText += " ";

}

return (cipherText);

}

public static String decryptionMessage(String s)

{

int i, j;

// char cipherChar[]=new char[(s.length()/2)];

char cipherChar[] = new char[(s.length())];

int cnt = -1;

for (i = 0; i < s.length(); i++)

{

// we receive only Ascii of it is allow 0 and 1, do not accept white

// space

// int ascii=(int)s.charAt(i);

if ((int) s.charAt(i) == 48 || (int) s.charAt(i) == 49

|| (int) s.charAt(i) == 32)

{

cnt++;

cipherChar[cnt] = s.charAt(i);

}

}

String s1 = new String(cipherChar);

String s2[] = s1.split(" ");

int data[] = new int[s2.length];

for (i = 0; i < s2.length; i++)

{

data[i] = Integer.parseInt(s2[i]);

}

char randomBitPattern[] = new char[7];

for (i = 0; i < 7; i++)

{

randomBitPattern[i] = (i % 2 == 0) ? '1' : '0';

}

BasicOperation b1 = new BasicOperation();

String plain = new String("");

// do the XOR Operation

for (i = 0; i < s2.length; i++)
{
int xorlen = b1.xorop(s2[i], randomBitPattern);
int xor[] = new int[xorlen];
for (j = 0; j < xorlen; j++)

{

xor[j] = b1.xorinArrayAt(j);

plain += xor[j];

}

plain += " ";
}

String p[] = plain.split(" ");

BasicOperation ob = new BasicOperation();

int decryptedChar[] = new int[p.length];

char plainTextChar[] = new char[p.length];

for (i = 0; i < p.length; i++)

{

decryptedChar[i] = ob.binaryToDecimal(Integer.parseInt(p[i]));

plainTextChar[i] = (char) decryptedChar[i];

}

return (new String(plainTextChar));

}

public static void main(String[] args)

{

Scanner sc = new Scanner(System.in);

System.out.println("Enter the message: ");

String message = sc.next();

System.out.println("'" + message + "' in encrypted message : "

+ encryptionMessage(message));

System.out.println("'" + encryptionMessage(message)

+ "' in decrypted message : "

+ decryptionMessage(encryptionMessage(message)));

sc.close();

}

}

class BasicOperation

{

int bin[] = new int[100];

int xor[] = new int[100];

int temp1[] = new int[100];

int temp2[] = new int[100];

int len;

int xorlen;

// convert binary number to decimal number

public int binaryToDecimal(int myNum)

{

int dec = 0, no, i, n = 0;

no = myNum;

// Find total digit of no of inupted number

while (no > 0)

{

n++;

no = no / 10;

}

// Convert inputed number into decimal

no = myNum;

for (i = 0; i < n; i++)
{
int temp = no % 10;
dec = dec + temp * ((int) Math.pow(2, i));

no = no / 10;

}

return dec;

}

public int decimalToBinary(int myNum)

{

int j, i = -1, no, temp = 0;

no = myNum;

int t[] = new int[100];

while (no > 0)

{

i++;

temp = no % 2;

t[i] = temp;

no = no / 2;

}

len = (i + 1);

j = -1;

for (i = len; i >= 0; i--)

{

j++;

bin[j] = t[i];

}

return len;

}

// find the specific bit value of binary number at given position

public int binaryArrayAtPosition(int pos)

{
return bin[pos];

}

public int xorinArrayAt(int pos)

{

return xor[pos];

}

// perform the binary X-OR operation

public int xorop(int a[], int b[], int arrlen)

{

int i;

for (i = 0; i < arrlen; i++)

{

xor[i] = (a[i] == b[i]) ? 0 : 1;

}

xorlen = i;

return xorlen;

}

// perform the binary X-OR operation

public int xorop(String s, char c[])

{

int i = -1;
for (i = 0; i < s.length(); i++)

{

xor[i] = (s.charAt(i) == c[i]) ? 0 : 1;

}

xorlen = i;
return xorlen;

}

public int getLen()

{

return len + 1;

}

// display binary bit pattern or the array

public void displayBinaryArray()

{

for (int i = 0; i <= len; i++)

{

System.out.println("\n Binary Array :" + bin[i]);

}

}

}

Answer 1

Output:

Program:

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
public class OneTimePadCipher
{
public static String encryptionMessage(String s)
{
int i, j;
int randomBitPattern[] = new int[8];
for (i = 0; i < 7; i++)
{
randomBitPattern[i] = (i % 2 == 0) ? 1 : 0;
}
char asc[] = new char[s.length()];
for (i = 0; i < s.length(); i++)
{
asc[i] = (char) ((int) s.charAt(i));
}
BasicOperation b1 = new BasicOperation();
String cipherText = new String("");
for (i = 0; i < asc.length; i++)
{
int temp = (int) (asc[i]);
int len = b1.decimalToBinary(temp);
int bintemp[] = new int[7];
int xorlen;
if (len == 7)
{
for (j = 1; j <= len; j++)
{
bintemp[j - 1] = b1.binaryArrayAtPosition(j);
}
// XOR Operation
xorlen = b1.xorop(bintemp, randomBitPattern, len);
}
else
{
// System.out.println("\n less than 7 :"+len);
bintemp[0] = 0;
for (j = 1; j <= len; j++)
{
bintemp[j] = b1.binaryArrayAtPosition(j);
}
// XOR Operation
xorlen = b1.xorop(bintemp, randomBitPattern, len + 1);
}
int xor[] = new int[xorlen];
for (j = 0; j < xorlen; j++)
{
xor[j] = b1.xorinArrayAt(j);
cipherText = cipherText + xor[j];
}
cipherText += " ";
}
return (cipherText);
}
public static String decryptionMessage(String s)
{
int i, j;
// char cipherChar[]=new char[(s.length()/2)];
char cipherChar[] = new char[(s.length())];
int cnt = -1;
for (i = 0; i < s.length(); i++)
{
// we receive only Ascii of it is allow 0 and 1, do not accept white
// space
// int ascii=(int)s.charAt(i);
if ((int) s.charAt(i) == 48 || (int) s.charAt(i) == 49 || (int) s.charAt(i) == 32)
{
cnt++;
cipherChar[cnt] = s.charAt(i);
}
}
String s1 = new String(cipherChar);
String s2[] = s1.split(" ");
int data[] = new int[s2.length];
for (i = 0; i < s2.length; i++)
{
data[i] = Integer.parseInt(s2[i]);
}
char randomBitPattern[] = new char[7];
for (i = 0; i < 7; i++)
{
randomBitPattern[i] = (i % 2 == 0) ? '1' : '0';
}
BasicOperation b1 = new BasicOperation();
String plain = new String("");
// do the XOR Operation
for (i = 0; i < s2.length; i++)
{
int xorlen = b1.xorop(s2[i], randomBitPattern);
int xor[] = new int[xorlen];
for (j = 0; j < xorlen; j++)
{
xor[j] = b1.xorinArrayAt(j);
plain += xor[j];
}
plain += " ";
}
String p[] = plain.split(" ");
BasicOperation ob = new BasicOperation();
int decryptedChar[] = new int[p.length];
char plainTextChar[] = new char[p.length];
for (i = 0; i < p.length; i++)
{
decryptedChar[i] = ob.binaryToDecimal(Integer.parseInt(p[i]));
plainTextChar[i] = (char) decryptedChar[i];
}
return (new String(plainTextChar));
}

public static void main(String[] args)
{
//create labels for show text
JFrame frame=new JFrame("cryptographic program ");
frame.setLayout(new BorderLayout());
frame.setSize(300, 400);
  
JLabel input=new JLabel("Enter the message: ");
JLabel enc=new JLabel("Encrypted message: ");
JLabel dec=new JLabel("Decrypted message: ");
//textfield to read input from user and show output
final JTextField inputMsg=new JTextField("");
final JTextField encMsg=new JTextField("");
final JTextField decMsg=new JTextField("");

//button for encryption and decryption
JButton ency=new JButton("Encrypt");
JButton decy=new JButton("Decrypt");
Panel panel=new Panel();
panel.setSize(200, 300);
panel.setLayout(new GridLayout(4,2));//set GridLayout to panel
//add elements on panel
panel.add(input);
panel.add(inputMsg);
encMsg.setEditable(false);
panel.add(enc);
panel.add(encMsg);
panel.add(dec);
panel.add(decMsg);
decMsg.setEditable(false);
//add buttons on panel
panel.add(ency);
panel.add(decy);
frame.add(panel,BorderLayout.CENTER);
frame.setResizable(false);
frame.setVisible(true);
ency.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
String message=inputMsg.getText().trim();//get text from input field
String messageEnc=encryptionMessage(message);//encrypt message
encMsg.setText(messageEnc);//set on encrypted Message field
}
});
decy.addActionListener(new ActionListener(){

@Override
public void actionPerformed(ActionEvent e) {
String message=encMsg.getText().trim();//get text from input field
String messageDec=decryptionMessage(message);//decrypt mssage
decMsg.setText(messageDec);//set on decrypted Message field
}

});
  
}
}
class BasicOperation
{
int bin[] = new int[100];
int xor[] = new int[100];
int temp1[] = new int[100];
int temp2[] = new int[100];
int len;
int xorlen;
// convert binary number to decimal number
public int binaryToDecimal(int myNum)
{
int dec = 0, no, i, n = 0;
no = myNum;
// Find total digit of no of inupted number
while (no > 0)
{
n++;
no = no / 10;
}
// Convert inputed number into decimal
no = myNum;
for (i = 0; i < n; i++)
{
int temp = no % 10;
dec = dec + temp * ((int) Math.pow(2, i));
no = no / 10;
}
return dec;
}
public int decimalToBinary(int myNum)
{
int j, i = -1, no, temp = 0;
no = myNum;
int t[] = new int[100];
while (no > 0)
{
i++;
temp = no % 2;
t[i] = temp;
no = no / 2;
}
len = (i + 1);
j = -1;
for (i = len; i >= 0; i--)
{
j++;
bin[j] = t[i];
}
return len;
}
// find the specific bit value of binary number at given position
public int binaryArrayAtPosition(int pos)
{
return bin[pos];
}
public int xorinArrayAt(int pos)
{
return xor[pos];
}
// perform the binary X-OR operation
public int xorop(int a[], int b[], int arrlen)
{
int i;
for (i = 0; i < arrlen; i++)
{
xor[i] = (a[i] == b[i]) ? 0 : 1;
}
xorlen = i;
return xorlen;
}
// perform the binary X-OR operation
public int xorop(String s, char c[])
{
int i = -1;
for (i = 0; i < s.length(); i++)
{
xor[i] = (s.charAt(i) == c[i]) ? 0 : 1;
}
xorlen = i;
return xorlen;
}
public int getLen()
{
return len + 1;
}
// display binary bit pattern or the array
public void displayBinaryArray()
{
for (int i = 0; i <= len; i++)
{
System.out.println("\n Binary Array :" + bin[i]);
}
}
}