encrypt.java

//import com.mysql.jdbc.*;
import java.io.BufferedReader;
import java.io.File;
import java.sql.*;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.servlet.ServletContext;
import java.lang.UnsupportedOperationException;
import java.sql.DriverManager;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Scanner;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;
import javax.swing.JOptionPane;
/**
*
* @author PURU
*/
public class Encrypt
public static void main(String[] args)
public void fun(String u,String n,String key)
//ServletContext s1=setServletContext();
//String path=(String)s1.getAttribute("FPath");
//String name=(String)s1.getAttribute("FName");
Statement st;
try
int i=0;
String fname=n;
String fullpath = u;
String content=u;
// String imagepart=image;
String s="Not Set";
String ss="Null",usn="Admin";
//Folder changes 2 //String outputpath = "C : =CloudP roject="+n; Stringoutputpath =
"D : =file=stegno=file1=en=" + n;
//MODIFICATION 1
// String outputpath1 = "D : =file=EUpload1=" + n; ==MODIFICATION1
//Folder changes 2
//MODIFICATION 1...
// String key = "squirrel123"; // needs to be at least 8 characters for DES
// FileInputStream fis1 = new FileInputStream(fullpath);
// FileOutputStream fos1 = new FileOutputStream(outputpath1);
// encrypt(key, fis1, fos1);
//MODIFICATION 1 END...
FileInputStream fis = new FileInputStream(fullpath);
FileOutputStream fos = new FileOutputStream(outputpath);
encrypt(key, fis, fos);
try i++;
BufferedReader br = new BufferedReader(new FileReader(outputpath));
String encrypt=br.readLine();
// JOptionPane.showMessageDialog(null, encrypt);
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/stegno","root","root");
String on="update key1 set key1=’"+key+"’ encryptFilePath=’"+outputpath+"0; encryptF ileContent " + encrypt + "0wherefileName =0 " + fname + "0";
PreparedStatement ps=con.prepareStatement(on);
int r=ps.executeUpdate();
if(r!=0)
// JOptionPane.showMessageDialog(null, );
System.out.print("Send successfully");
else
JOptionPane.showMessageDialog(null, "Send falied");
catch(Exception e1)
System.out.println(e1);
catch (Throwable e)
System.out.println(e);
e.printStackTrace();
public static void encrypt(String key, InputStream is, OutputStream os) throws Throwable
encryptOrDecrypt(key, Cipher.ENCRYPTMODE; is; os);
public static void decrypt(String key, InputStream is, OutputStream os) throws Throwable
encryptOrDecrypt(key, Cipher.DECRYPTMODE; is; os);
public static void encryptOrDecrypt(String key, int mode, InputStream is, OutputStream
os) throws Throwable
DESKeySpec dks = new DESKeySpec(key.getBytes());
SecretKeyFactory skf = SecretKeyFactory.getInstance("DES");
SecretKey desKey = skf.generateSecret(dks);
Cipher cipher = Cipher.getInstance("DES"); //
DES/ECB/PKCS5Padding for SunJCE
if (mode == Cipher.ENCRYPTMODE)
cipher.init(Cipher.ENCRYPTMODE; desKey);
CipherInputStream cis = new CipherInputStream(is, cipher); doCopy(cis, os);
else if (mode == Cipher.DECRYPTMODE)
cipher.init(Cipher.DECRYPTMODE; desKey);
CipherOutputStream cos = new CipherOutputStream(os, cipher); doCopy(is, cos);
public static void doCopy(InputStream is, OutputStream os) throws IOException
byte[] bytes = new byte[64];
int numBytes;
while ((numBytes = is.read(bytes)) != -1) os.write(bytes, 0, numBytes);
os.flush();
os.close();
is.close();