hi all ..how are u ? i have a security project in java ...i have to implement the DES cipher and the Stream cipher ...with GUI ..where can i find a working source code for these ciphers ...can someone help plz ...and thnx in advance?
weblover 0 Junior Poster
kvprajapati 1,826 Posting Genius Team Colleague
>where can i find a working source code for these ciphers ...
Why are looking here? It's there.
weblover 0 Junior Poster
where?:S
kvprajapati 1,826 Posting Genius Team Colleague
where?:S
Dear Lazy,
I am saying that show your work first.
weblover 0 Junior Poster
:D ah ok ......i will show my work ...i worked on the Asynchronous stream cipher ...but it dosen't work ...
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class AStreamcipher extends JFrame{
char [] tab={'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
JButton encrypt;
JButton decrypt;
JButton back;
JTextField toenc;
JTextField keyfield;
JTextField res;
JTextField todec;
JTextField decrres;
int key;
public AStreamcipher () {
create ();
}
public void create()
{
Container content=getContentPane();
Color c1=new Color(48, 63, 120);
content.setBackground(c1);
content.setLayout(null);
JLabel welcome=new JLabel();
welcome.setBounds(500,4,500,50);
welcome.setText("<html><body><font size=20 face=Andalus >Shift Cipher</font></body></html>");
content.add(welcome);
JLabel text=new JLabel();
text.setBounds(120,200,200,100);
text.setText("<html><body><font size=5 face=Andalus >Text To Encrypt</font></body></html>");
content.add(text);
toenc=new JTextField();
toenc.setBounds(260,235,150,30);
content.add(toenc);
JLabel restext=new JLabel();
restext.setBounds(120,342,200,100);
restext.setText("<html><body><font size=5 face=Andalus >Encrypted Text</font></body></html>");
content.add(restext);
JLabel key1=new JLabel();
key1.setBounds(520,160,50,20);
key1.setText("<html><body><font size=5 face=Andalus >Key</font></body></html>");
content.add(key1);
keyfield=new JTextField();
keyfield.setBounds(550,160,50,20);
content.add(keyfield);
res=new JTextField();
res.setBounds(260,375,150,30);
res.setEditable(false);
content.add(res);
encrypt=new JButton();
encrypt.setText("Encrypt");
encrypt.setForeground(c1);
encrypt.setBounds(100,300,170,35);
content.add(encrypt);
encrypt.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
try{
String encres = "";
key=Integer.parseInt(keyfield.getText());
String temp=toenc.getText();
char [] e;
int encryptedtext=0;
e=temp.toCharArray();
int [] k =new int [e.length];
k[0]=key;
for(int i=0;i<temp.length();i++){
for(int j=0;j<tab.length;j++){
if(e[i] == tab[j]){
for(int s=1;s<k.length;s++){
k[s]=j;
//System.out.println(k[s] + "\n");
}
}
}
}
for(int t=0;t<k.length;t++)
System.out.println(k[t] + "\n");
}
catch (Exception e)
{
}
}
});
back=new JButton();
back.setText("Back");
back.setForeground(c1);
back.setBounds(500,540,170,35);
content.add(back);
back.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
try{
Encryption1 e=new Encryption1();
setVisible(false);
}
catch (Exception e)
{
}
}
});
JLabel enctext=new JLabel();
enctext.setBounds(750,200,200,100);
enctext.setText("<html><body><font size=5 face=Andalus >Text To Decrypt</font></body></html>");
content.add(enctext);
todec=new JTextField();
todec.setBounds(885,235,150,30);
content.add(todec);
JLabel resdec=new JLabel();
resdec.setBounds(750,342,200,100);
resdec.setText("<html><body><font size=5 face=Andalus >Decrypted Text</font></body></html>");
content.add(resdec);
decrres=new JTextField();
decrres.setBounds(885,375,150,30);
decrres.setEditable(false);
content.add(decrres);
decrypt=new JButton();
decrypt.setText("Decrypt");
decrypt.setForeground(c1);
decrypt.setBounds(750,300,170,35);
content.add(decrypt);
decrypt.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent event1)
{
try{
key=Integer.parseInt(keyfield.getText());
String decres = "";
String temp=todec.getText();
char [] p;
int decryptedtext=0;
p=temp.toCharArray();
for(int i=0;i<p.length;i++){
for(int j=0;j<tab.length;j++){
if(p[i] == ' ')
decryptedtext= ' ';
if(p[i] == tab[j]){
decryptedtext =(j - key)%26;
if(decryptedtext <0)
decryptedtext +=26;
//System.out.println(encryptedtext +"\n");
decres +=tab[decryptedtext];
}
}
}
decrres.setText(decres);
}
catch (Exception e)
{
}
}
});
setTitle("Mozilla FireFox");
setSize(1610,1600);
setVisible(true);
}
public static void main(String []args){
AStreamcipher e=new AStreamcipher();
}
}but it's not working ...help me make it works ...thnx in advance
weblover 0 Junior Poster
but for the synchronous stream cipher i did not know how to start :S
kvprajapati 1,826 Posting Genius Team Colleague
Use javax.crypto.Cipher class.
weblover 0 Junior Poster
thnx but my dr wants me to implement the code ......:S
Be a part of the DaniWeb community
We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.