Problem Decrypting Files

The problem is not closing the OutPutStream. I thought the same thing and put it im my code last night. After doing some debugging I now think that the problem is not in encrypting or decrypting it is with the write method. After a file is encrypted the encrypted file can be viewed in notepad as a longe list of ebcrypted bytes(their String representations at least --I think). However, say Itry to decrytp the file and it was originally a word document. After decryption word won't recognize the file.

Here is the entire code so that you can run it and understand.

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.lang.reflect.Array;

import java.io.IOException;

import java.io.FileNotFoundException;

import java.security.InvalidKeyException;

import java.security.NoSuchAlgorithmException;

import java.security.spec.InvalidKeySpecException;

import javax.crypto.BadPaddingException;

import javax.crypto.Cipher;

import javax.crypto.IllegalBlockSizeException;

import javax.crypto.NoSuchPaddingException;

import javax.crypto.SecretKey;

import javax.crypto.SecretKeyFactory;

import javax.crypto.spec.PBEKeySpec;

import javax.swing.ButtonGroup;

import java.util.Arrays;

import javax.swing.JFileChooser;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.awt.TextArea;

import javax.swing.filechooser.FileFilter;

import java.io.FileDescriptor;

class JCE extends JFrame implements ActionListener {

JRadioButton encryptButton;

JRadioButton decryptButton;

JLabel textLabel1;

JTextField inputFile;

JLabel textLabel2;

JTextField outputFile;

JButton chooser2;

JLabel passLabel1;

JPasswordField passwordField1;

JLabel passLabel2;

JPasswordField passwordField2;

JRadioButton delFileButton;

JButton startButton;

JFileChooser fc;

JFrame chooserFrame;

int approve;

File inFile;

String inFileName;

File outFile;

char[] nameChar;

int nameSize;

String outFileName;

char[] password1 = new char[128];

char[] password2 = new char[128];

int size = 0;

String error = "";

int errorCount = 0;

JFrame errorFrame;

SecretKey key;

byte[] salt = new byte[] { (byte) 0x3a, (byte)0x44, (byte)0x7f, (byte)0xf1, (byte)0xa2, (byte)0xe5, (byte)0x87, (byte)0x31 };

int iterations = 1000;

public JCE() {

//creat and display GUI

encryptButton = new JRadioButton("Encrypt ", true);

decryptButton = new JRadioButton("Decrypt");

ButtonGroup cryptGroup = new ButtonGroup();

cryptGroup.add(encryptButton);

cryptGroup.add(decryptButton);

JPanel selectPanel = new JPanel(new FlowLayout());

selectPanel.add(encryptButton);

selectPanel.add(decryptButton);

textLabel1 = new JLabel("Input File");

inputFile = new JTextField(40);

inputFile.setEditable(false);

inputFile.setText(" ");

JButton chooser1 = new JButton("...");

//add actionlisteners

chooser1.addActionListener(this);

chooser1.setActionCommand("chooser1");

JPanel inputPanel = new JPanel(new FlowLayout());

inputPanel.add(textLabel1);

inputPanel.add(inputFile);

inputPanel.add(chooser1);

textLabel2 = new JLabel("Output File");

outputFile = new JTextField(40);

outputFile.setEditable(false);

outputFile.setText(" ");

chooser2 = new JButton("...");

//add actionlisteners

chooser2.addActionListener(this);

chooser2.setActionCommand("chooser2");

JPanel outputPanel = new JPanel(new FlowLayout());

outputPanel.add(textLabel2);

outputPanel.add(outputFile);

outputPanel.add(chooser2);

passLabel1 = new JLabel("Enter password: ");

passwordField1 = new JPasswordField(10);

passwordField1.setEchoChar('*');

passwordField1.setText("");

passLabel2 = new JLabel(" Renter password: ");

passwordField2 = new JPasswordField(10);

passwordField2.setEchoChar('*');

passwordField1.setText("");

JPanel passwordPanel = new JPanel(new FlowLayout());

passwordPanel.add(passLabel1);

passwordPanel.add(passwordField1);

passwordPanel.add(passLabel2);

passwordPanel.add(passwordField2);

delFileButton = new JRadioButton("Delete Input File");

startButton = new JButton("Start Process");

//add actionlisteners

startButton.addActionListener(this);

startButton.setActionCommand("startButton");

JPanel processPanel = new JPanel(new FlowLayout());

processPanel.add(delFileButton);

processPanel.add(startButton);

getContentPane().setLayout(new GridLayout(5,1));

getContentPane().add(selectPanel);

getContentPane().add(inputPanel);

getContentPane().add(outputPanel);

getContentPane().add(passwordPanel);

getContentPane().add(processPanel);

}

public void actionPerformed(ActionEvent ae) {

if(ae.getActionCommand() == "chooser1") {

//create file chooser for selecting input file

fc = new JFileChooser(inFile);

fc.setDialogTitle("Input File");

fc.setFileSelectionMode(fc.FILES_ONLY);

//this filter only allows the display of encrypted files

if(decryptButton.isSelected()) {

fc.addChoosableFileFilter(new DecryptFilter());

approve = fc.showOpenDialog(chooserFrame);

} else {

fc.showOpenDialog(chooserFrame);

}

//display path of file

if (approve == JFileChooser.APPROVE_OPTION) {

inFile = fc.getSelectedFile();

inFileName = fc.getSelectedFile().getName();

inputFile.setText(fc.getCurrentDirectory().getAbsolutePath() + "\\" + inFileName);

}

}

if(ae.getActionCommand() == "chooser2") {

//create an other file chooser for selecting output path

fc = new JFileChooser(outFile);

fc.setDialogTitle("Output File");

//no file filter necessary because only a path is required

//only lets user select folders

fc.setFileSelectionMode(fc.DIRECTORIES_ONLY);

fc.showOpenDialog(chooserFrame);

outFile = fc.getSelectedFile();

//modifies name of the input file to chop off the .encrypt extension if user is

//decrypting a file

if(decryptButton.isSelected()) {

nameChar = inFileName.toCharArray();

nameSize = inFileName.length();

outFileName = "";

for(int a = 0; a < nameSize - 8; a++) {

outFileName = outFileName + nameChar[a];

}

} else {

//adds .encrypt extension if usre is encrypting a file

outFileName = inFileName + ".encrypt";

}

//displays output file path

try {

outputFile.setText(outFile.getCanonicalPath() + "\\" + outFileName);

} catch(IOException ioe) {

ioe.printStackTrace();

}

}

if(ae.getActionCommand() == "startButton") {

//this is all some user error handeling

//chech input file selected

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

error = error + " You must select an input file";

errorCount++;

}

//chech output file selected

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

if(errorCount >= 1) {

error = error + "\n You must select an output file";

errorCount++;

} else {

error = error + " You must select an output file";

errorCount++;

}

}

//check that password has been enterd, password length, and if they match

password1 = passwordField1.getPassword();

password2 = passwordField2.getPassword();

try {

size = Array.getLength(password1);

} catch(IllegalArgumentException iae) {

iae.printStackTrace();

}

if(size == 0) {

if(errorCount >= 1) {

error = error + "\n You must enter in a password";

errorCount++;

} else {

error = error + " You must enter in a password";

errorCount++;

}

}

if(size > 20) {

if(errorCount >= 1) {

error = error + "\n The password must be 20 characters or less";

errorCount++;

} else {

error = error + " The password must be 20 characters or less";

errorCount++;

}

}

if(!Arrays.equals(password1, password2)) {

if(errorCount >= 1) {

error = error + "\n Enter the same password in both fields";

errorCount++;

} else {

error = error + "Enter the same password in both fields";

errorCount++;

}

}

//start encryption or decryption

if(errorCount == 0) {

//generate key

KeyGenerator(password1, salt, iterations);

//encrypt or decrypt

if(encryptButton.isSelected()){

Encrypt(key, inFile, outputFile, password1, password2, inputFile, passwordField1, passwordField2);

} else {

Decrypt(key, inFile, outputFile, password1, password2, inputFile, passwordField1, passwordField2, encryptButton);

}

} else {

//output and error report

Toolkit.getDefaultToolkit().beep();

JOptionPane.showMessageDialog(errorFrame, error, "ERROR", JOptionPane.ERROR_MESSAGE);

passwordField1.setText("");

passwordField2.setText("");

error = "";

errorCount = 0;

}

}

}

public void KeyGenerator(char[] password1, byte[] salt, int iterations) {

//generate a SecretKey

PBEKeySpec pbeKeySpec;

SecretKeyFactory factory;

try {

pbeKeySpec = new PBEKeySpec(password1, salt, iterations);

factory = SecretKeyFactory.getInstance("PBEWithMD5AndTripleDES");

key = factory.generateSecret(pbeKeySpec);

} catch(NoSuchAlgorithmException nsae) {

nsae.printStackTrace();

} catch(InvalidKeySpecException ikse) {

ikse.printStackTrace();

} catch(IllegalStateException ise) {

ise.printStackTrace();

} catch(ArrayIndexOutOfBoundsException aioobe) {

aioobe.printStackTrace();

} catch(NullPointerException npe) {

npe.printStackTrace();

}

}

public void Encrypt(SecretKey key, File inFile, JTextField outputFile, char[] password1, char[] password2, JTextField inputFile, JPasswordField passwordField1, JPasswordField passwordField2) {

//encrypt file

try{

FileInputStream fis = new FileInputStream(inFile);

FileOutputStream fos = new FileOutputStream(outputFile.getText());

Cipher cipher = Cipher.getInstance("PBEWithMD5AndTripleDES");

//here is where I believe the proble lies something with how I read and then write the byte data

//of a file

cipher.init(Cipher.ENCRYPT_MODE, key);

byte[] buffer = new byte[(int)inFile.length()];

fis.read(buffer);

fis.close();

byte[] encrypt = cipher.doFinal(buffer);

fos.write(encrypt);

fos.close();

} catch(IOException ioe){

ioe.printStackTrace();

} catch(IllegalBlockSizeException ibse) {

ibse.printStackTrace();

} catch(BadPaddingException bpe) {

bpe.printStackTrace();

} catch(InvalidKeyException ike) {

ike.printStackTrace();

} catch(NoSuchAlgorithmException nsae) {

nsae.printStackTrace();

} catch(NoSuchPaddingException nspe) {

nspe.printStackTrace();

}

Toolkit.getDefaultToolkit().beep();

JOptionPane.showMessageDialog(errorFrame, "PROCESS FINISHED", " ", JOptionPane.INFORMATION_MESSAGE);

//reinitialize all important variables

key = null;

outputFile.setText("");

inputFile.setText("");

for(int a = 0; a < Array.getLength(password1); a++) {

password1[a] = 0;

}

for(int a = 0; a < Array.getLength(password2); a++) {

password2[a] = 0;

}

passwordField1.setText("");

passwordField2.setText("");

}

public void Decrypt(SecretKey key, File inFile, JTextField outputFile, char[] password1, char[] password2, JTextField inputFile, JPasswordField passwordField1, JPasswordField passwordField2, JRadioButton encryptButton) {

//decrypt file

try{

FileInputStream fis = new FileInputStream(inFile);

FileOutputStream fos = new FileOutputStream(outputFile.getText());

Cipher cipher = Cipher.getInstance("PBEWithMD5AndTripleDES");

cipher.init(Cipher.DECRYPT_MODE, key);

//here is where I believe the proble lies something with how I read and then write the byte data

//of a file

byte[] buffer = new byte[(int)inFile.length()];

fis.read(buffer);

fis.close();

byte[] decrypt = cipher.doFinal(buffer);

fos.write(decrypt);

fos.close();

} catch(IOException ioe){

ioe.printStackTrace();

} catch(IllegalBlockSizeException ibse) {

ibse.printStackTrace();

} catch(BadPaddingException bpe) {

bpe.printStackTrace();

} catch(InvalidKeyException ike) {

ike.printStackTrace();

} catch(NoSuchAlgorithmException nsae) {

nsae.printStackTrace();

} catch(NoSuchPaddingException nspe) {

nspe.printStackTrace();

}

Toolkit.getDefaultToolkit().beep();

JOptionPane.showMessageDialog(errorFrame, "PROCESS FINISHED", " ", JOptionPane.INFORMATION_MESSAGE);

//reinitialize all important variables

key = null;

outputFile.setText("");

inputFile.setText("");

for(int a = 0; a < Array.getLength(password1); a++) {

password1[a] = 0;

}

for(int a = 0; a < Array.getLength(password2); a++) {

password2[a] = 0;

}

passwordField1.setText("");

passwordField2.setText("");

encryptButton.setSelected(true);

}

public static void main(String[] args) {

//crerate JFrame

JFrame frame = new JCE();

frame.setSize(600,200);

frame.setTitle("Java Cryptography Extensions");

frame.setResizable(false);

frame.show();

frame.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent we) {

System.exit(0);

}

});

}

}

class DecryptFilter extends FileFilter {

//file filter for .encrypt extension

public boolean accept(File inFile) {

if (inFile.isDirectory()) {

return true;

}

String inFileName = inFile.getName();

int i = inFileName.lastIndexOf('.');

if (i > 0 && i < inFileName.length() - 1)

if (inFileName.substring(i + 1).toLowerCase().equals("encrypt"))

return true;

return false;

}

public String getDescription() {

return "Encrypted Files (.encrypt)";

}

}

j-roda at 2007-7-12 >

So far I am able to read the bytes of a file and then write them to a new .encrypt file. I am even able to then read the bytes of the .encrypt file and write them back to the original file type. However, when I try to initialize a new instance of a Cipher theprogram ceases to function. If I try to view the new .encrypt file in note pad nothing comes up. Even if I don't apply the cipher to the bytes of the file and just rewrite the original bytes nothing comes up. So, somewhere I am doing something wrong, I think its with my Cipher initialization. If you have some advice besides read the API's, because I have done that, I would gladly appreciate. If you don't know then just say so.

import javax.crypto.SecretKey;

import javax.crypto.SecretKeyFactory;

import javax.crypto.spec.PBEKeySpec;

import javax.crypto.Cipher;

import javax.crypto.CipherInputStream;

import javax.crypto.CipherOutputStream;

import javax.crypto.BadPaddingException;

import javax.crypto.IllegalBlockSizeException;

import javax.crypto.NoSuchPaddingException;

import javax.crypto.ShortBufferException;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.FileDescriptor;

import java.io.IOException;

import java.io.FileNotFoundException;

import javax.swing.*;

import javax.swing.JFileChooser;

import javax.swing.ButtonGroup;

import javax.swing.filechooser.FileFilter;

import java.awt.*;

import java.awt.event.*;

import java.awt.TextArea;

import java.security.InvalidKeyException;

import java.security.NoSuchAlgorithmException;

import java.security.spec.InvalidKeySpecException;

import java.util.Arrays;

import java.lang.reflect.Array;

import java.nio.ByteBuffer;

class JCE extends JFrame implements ActionListener {

JRadioButton encryptButton;

JRadioButton decryptButton;

JLabel textLabel1;

JTextField inputFile;

JLabel textLabel2;

JTextField outputFile;

JButton chooser2;

JLabel passLabel1;

JPasswordField passwordField1;

JLabel passLabel2;

JPasswordField passwordField2;

JRadioButton delFileButton;

JButton startButton;

JFileChooser fc;

JFrame chooserFrame;

int approve;

File inFile;

String inFileName;

File outFile;

char[] nameChar;

int nameSize;

String outFileName;

char[] password1 = new char[128];

char[] password2 = new char[128];

int size = 0;

String error = "";

int errorCount = 0;

JFrame errorFrame;

SecretKey key;

byte[] salt = new byte[] { (byte) 0x3a, (byte)0x44, (byte)0x7f, (byte)0xf1, (byte)0xa2, (byte)0xe5, (byte)0x87, (byte)0x31 };

int iterations = 1000;

public JCE() {

encryptButton = new JRadioButton("Encrypt ", true);

decryptButton = new JRadioButton("Decrypt");

ButtonGroup cryptGroup = new ButtonGroup();

cryptGroup.add(encryptButton);

cryptGroup.add(decryptButton);

JPanel selectPanel = new JPanel(new FlowLayout());

selectPanel.add(encryptButton);

selectPanel.add(decryptButton);

textLabel1 = new JLabel("Input File");

inputFile = new JTextField(40);

inputFile.setEditable(false);

inputFile.setText(" ");

JButton chooser1 = new JButton("...");

chooser1.addActionListener(this);

chooser1.setActionCommand("chooser1");

JPanel inputPanel = new JPanel(new FlowLayout());

inputPanel.add(textLabel1);

inputPanel.add(inputFile);

inputPanel.add(chooser1);

textLabel2 = new JLabel("Output File");

outputFile = new JTextField(40);

outputFile.setEditable(false);

outputFile.setText(" ");

chooser2 = new JButton("...");

chooser2.addActionListener(this);

chooser2.setActionCommand("chooser2");

JPanel outputPanel = new JPanel(new FlowLayout());

outputPanel.add(textLabel2);

outputPanel.add(outputFile);

outputPanel.add(chooser2);

passLabel1 = new JLabel("Enter password: ");

passwordField1 = new JPasswordField(10);

passwordField1.setEchoChar('*');

passwordField1.setText("");

passLabel2 = new JLabel(" Renter password: ");

passwordField2 = new JPasswordField(10);

passwordField2.setEchoChar('*');

passwordField1.setText("");

JPanel passwordPanel = new JPanel(new FlowLayout());

passwordPanel.add(passLabel1);

passwordPanel.add(passwordField1);

passwordPanel.add(passLabel2);

passwordPanel.add(passwordField2);

delFileButton = new JRadioButton("Delete Input File");

startButton = new JButton("Start Process");

startButton.addActionListener(this);

startButton.setActionCommand("startButton");

JPanel processPanel = new JPanel(new FlowLayout());

processPanel.add(delFileButton);

processPanel.add(startButton);

getContentPane().setLayout(new GridLayout(5,1));

getContentPane().add(selectPanel);

getContentPane().add(inputPanel);

getContentPane().add(outputPanel);

getContentPane().add(passwordPanel);

getContentPane().add(processPanel);

}

public void actionPerformed(ActionEvent ae) {

if(ae.getActionCommand() == "chooser1") {

fc = new JFileChooser(inFile);

fc.setDialogTitle("Input File");

fc.setFileSelectionMode(fc.FILES_ONLY);

if(decryptButton.isSelected()) {

fc.addChoosableFileFilter(new DecryptFilter());

approve = fc.showOpenDialog(chooserFrame);

} else {

fc.showOpenDialog(chooserFrame);

}

if (approve == JFileChooser.APPROVE_OPTION) {

inFile = fc.getSelectedFile();

inFileName = fc.getSelectedFile().getName();

inputFile.setText(fc.getCurrentDirectory().getAbsolutePath() + "\\" + inFileName);

}

}

if(ae.getActionCommand() == "chooser2") {

fc = new JFileChooser(outFile);

fc.setDialogTitle("Output File");

fc.setFileSelectionMode(fc.DIRECTORIES_ONLY);

fc.showOpenDialog(chooserFrame);

outFile = fc.getSelectedFile();

if(decryptButton.isSelected()) {

nameChar = inFileName.toCharArray();

nameSize = inFileName.length();

outFileName = "";

for(int a = 0; a < nameSize - 8; a++) {

outFileName = outFileName + nameChar[a];

}

} else {

outFileName = inFileName + ".encrypt";

}

try {

outputFile.setText(outFile.getCanonicalPath() + "\\" + outFileName);

} catch(IOException ioe) {

ioe.printStackTrace();

}

}

if(ae.getActionCommand() == "startButton") {

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

error = error + " You must select an input file";

errorCount++;

}

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

if(errorCount >= 1) {

error = error + "\n You must select an output file";

errorCount++;

} else {

error = error + " You must select an output file";

errorCount++;

}

}

password1 = passwordField1.getPassword();

password2 = passwordField2.getPassword();

try {

size = Array.getLength(password1);

} catch(IllegalArgumentException iae) {

iae.printStackTrace();

}

if(size == 0) {

if(errorCount >= 1) {

error = error + "\n You must enter in a password";

errorCount++;

} else {

error = error + " You must enter in a password";

errorCount++;

}

}

if(size > 20) {

if(errorCount >= 1) {

error = error + "\n The password must be 20 characters or less";

errorCount++;

} else {

error = error + " The password must be 20 characters or less";

errorCount++;

}

}

if(!Arrays.equals(password1, password2)) {

if(errorCount >= 1) {

error = error + "\n Enter the same password in both fields";

errorCount++;

} else {

error = error + "Enter the same password in both fields";

errorCount++;

}

}

if(errorCount == 0) {

//generates a SecretKey based on the user inpu password

KeyGenerator(password1, salt, iterations);

//reads the bytes of the file to be en/decrypted

byte[] buffer = new byte[(int)inFile.length()];

buffer = GetBytes(inFile);

if(encryptButton.isSelected()){

//the encrypt calss is called to encrypt the files

Encrypt(inFile, outputFile, buffer, key);

} else {

//the decrypt calss is called to encrypt the files

Decrypt(inFile, outputFile, buffer, key);

}

} else {

Toolkit.getDefaultToolkit().beep();

JOptionPane.showMessageDialog(errorFrame, error, "ERROR", JOptionPane.ERROR_MESSAGE);

passwordField1.setText("");

passwordField2.setText("");

error = "";

errorCount = 0;

}

}

}

public void Encrypt(File inFile, JTextField outputFile, byte[] buffer, SecretKey key) {

//If you try commenting out all of the code dealing with encryption and all the

//code dealing with decryption in public void decrypt() you'll see that the program will

//read the bytes of the file, save them to a .encrypt file. Then when decrypt is selected

//it will read the bytes and write them back to the original file, and that file opens. As

//soon as the en-decryption code is then uncommented one cannot even open the

//.encrypt file in note pad and see anything.

try {

//a new file output sream is created atto the user pecified loaction

FileOutputStream fos = new FileOutputStream(outputFile.getText());

//a new cicher is created then initilaized to encrypt mode

Cipher encrypter = Cipher.getInstance("PBEWithMD5AndTripleDES");

encrypter.init(Cipher.ENCRYPT_MODE, key);

//the byte array created from the bytes the used defined file is converted to a

//ByteBuffer for processing

ByteBuffer buf = ByteBuffer.wrap(buffer);

//a new destination ByteBuffer is created and initialized to hold the encrypted bytes

ByteBuffer encrypt = null;

//the the bytes from buf are encrypted and passed to encrypt

encrypter.doFinal(buf, encrypt);

//set the location in the ByteBuffer back the the first position

encrypt.clear();

//writes the byte[] which backs the ByteBuffer the the file out put stream

fos.write(encrypt.array());

//fos.write(buffer);

fos.close();

} catch(IOException ioe){

ioe.printStackTrace();

} catch(NoSuchAlgorithmException nsae) {

nsae.printStackTrace();

} catch(NoSuchPaddingException nspe) {

nspe.printStackTrace();

} catch(InvalidKeyException ike) {

ike.printStackTrace();

} catch(IllegalBlockSizeException ibse) {

ibse.printStackTrace();

} catch(BadPaddingException bpe) {

bpe.printStackTrace();

} catch(ShortBufferException sbe) {

sbe.printStackTrace();

}

Toolkit.getDefaultToolkit().beep();

JOptionPane.showMessageDialog(errorFrame, "PROCESS FINISHED", " ", JOptionPane.INFORMATION_MESSAGE);

System.out.println("hello");

}

public void Decrypt(File inFile, JTextField outputFile, byte[] buffer, SecretKey key) {

try {

//a new file output sream is created atto the user pecified loaction

FileOutputStream fos = new FileOutputStream(outputFile.getText());

//a new cicher is created then initilaized to decrypt mode

Cipher decrypter = Cipher.getInstance("PBEWithMD5AndTripleDES");

decrypter.init(Cipher.DECRYPT_MODE, key);

//the byte array created from the bytes the used defined file is converted to a

//ByteBuffer for processing

ByteBuffer buf = ByteBuffer.wrap(buffer);

//a new destination ByteBuffer is created and initialized to hold the decrypted bytes

ByteBuffer decrypt = null;

//the the bytes from buf are decrypted and passed to decrypt

decrypter.doFinal(buf, decrypt);

//set the location in the ByteBuffer back the the first position

decrypt.clear();

//writes the byte[] which backs the ByteBuffer the the file out put stream

fos.write(decrypt.array());

//fos.write(buffer);

fos.close();

} catch(IOException ioe){

ioe.printStackTrace();

} catch(NoSuchAlgorithmException nsae) {

nsae.printStackTrace();

} catch(NoSuchPaddingException nspe) {

nspe.printStackTrace();

} catch(InvalidKeyException ike) {

ike.printStackTrace();

} catch(IllegalBlockSizeException ibse) {

ibse.printStackTrace();

} catch(BadPaddingException bpe) {

bpe.printStackTrace();

} catch(ShortBufferException sbe) {

sbe.printStackTrace();

}

Toolkit.getDefaultToolkit().beep();

JOptionPane.showMessageDialog(errorFrame, "PROCESS FINISHED", " ", JOptionPane.INFORMATION_MESSAGE);

}

public byte[] GetBytes(File inFile) {

byte[] temp = new byte[(int)inFile.length()];

try {

FileInputStream fis = new FileInputStream(inFile);

DataInputStream dis = new DataInputStream(fis);

dis.readFully(temp);

dis.close();

fis.close();

} catch(FileNotFoundException fnfe) {

fnfe.printStackTrace();

} catch(IOException ioe){

ioe.printStackTrace();

}

return temp;

}

public void KeyGenerator(char[] password1, byte[] salt, int iterations) {

PBEKeySpec pbeKeySpec;

SecretKeyFactory factory;

try {

pbeKeySpec = new PBEKeySpec(password1, salt, iterations);

factory = SecretKeyFactory.getInstance("PBEWithMD5AndTripleDES");

key = factory.generateSecret(pbeKeySpec);

} catch(NoSuchAlgorithmException nsae) {

nsae.printStackTrace();

} catch(InvalidKeySpecException ikse) {

ikse.printStackTrace();

} catch(IllegalStateException ise) {

ise.printStackTrace();

} catch(ArrayIndexOutOfBoundsException aioobe) {

aioobe.printStackTrace();

} catch(NullPointerException npe) {

npe.printStackTrace();

}

}

public static void main(String[] args) {

JFrame frame = new JCE();

frame.setSize(600,200);

frame.setTitle("Java Cryptography Extensions");

frame.setResizable(false);

frame.show();

frame.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent we) {

System.exit(0);

}

});

}

}

class DecryptFilter extends FileFilter {

public boolean accept(File inFile) {

if (inFile.isDirectory()) {

return true;

}

String inFileName = inFile.getName();

int i = inFileName.lastIndexOf('.');

if (i > 0 && i < inFileName.length() - 1)

if (inFileName.substring(i + 1).toLowerCase().equals("encrypt"))

return true;

return false;

}

public String getDescription() {

return "Encrypted Files (.encrypt)";

}

}

j-roda at 2007-7-12 >