Java tutorial
/* * JCrypterFrame.java * * Created on 26. Juli 2008, 17:47 * http://1x1.googlecode.com * GNUCrypto version: Revision 122 * Released under Apache License * Implements Singleton, saved instance called mainFrame */ package jcrypter; import jcrypter.password.PasswordGeneratorFrame; import java.io.ByteArrayInputStream; import jcrypter.utils.CipherModePaddingSelectorDialog; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.PipedInputStream; import java.io.PipedOutputStream; import java.security.*; import java.util.Arrays; import java.util.Iterator; import java.util.List; import java.util.ResourceBundle; import java.util.Set; import java.util.TreeSet; import java.util.logging.Level; import java.util.logging.Logger; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.crypto.Cipher; import javax.crypto.CipherInputStream; import javax.crypto.CipherOutputStream; import javax.crypto.SecretKey; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import javax.naming.BinaryRefAddr; import javax.swing.JFileChooser; import javax.swing.JOptionPane; import jcrypter.signature.SignatureFrame; import jcrypter.asymmetric.AsymmetricCrypterFrame; import jcrypter.digest.DigestFrame; import jcrypter.hmac.HMACFrame; import jcrypter.utils.Base64UtilFrame; import jcrypter.utils.KeyGeneratorFrame; import jcrypter.rand.RandomFileCreatorFrame; import jcrypter.rand.RandomNumberGeneratorFrame; import org.bouncycastle.crypto.*; import org.bouncycastle.crypto.digests.SHA256Digest; import org.bouncycastle.crypto.engines.BlowfishEngine; import org.bouncycastle.crypto.engines.TwofishEngine; import org.bouncycastle.crypto.paddings.PKCS7Padding; import org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher; import org.bouncycastle.crypto.params.KeyParameter; import org.bouncycastle.crypto.params.ParametersWithIV; import org.bouncycastle.jce.provider.BouncyCastleProvider; import org.bouncycastle.util.encoders.Base64; /** * * @author uli */ public class JCrypterFrame extends javax.swing.JFrame { public static List<String> getModes() { return modes; } public static List<String> getPaddings() { return paddings; } public Set<String> getCiphers() { if (mainFrame.showOIDsMenuItem.isSelected()) { return ciphers; } //else implied return ciphersNoOIDs; } public Set<String> getKeyAgreements() { if (mainFrame.showOIDsMenuItem.isSelected()) { return keyAgreements; } //else implied return keyAgreementsNoOIDs; } public Set<String> getMacs() { if (mainFrame.showOIDsMenuItem.isSelected()) { return macs; } //else implied return macsNoOIDs; } public Set<String> getMessageDigests() { if (mainFrame.showOIDsMenuItem.isSelected()) { return messageDigests; } //else implied return messageDigestsNoOIDs; } public Set<String> getSignatures() { if (mainFrame.showOIDsMenuItem.isSelected()) { return signatures; } //else implied (return) return signaturesNoOIDs; } /** * @return the cipherName */ public Cipher getCipher() { return cipher; } /** Creates new form JCrypterFrame */ public JCrypterFrame() { //Register Bouncy castle provider Security.addProvider(new BouncyCastleProvider()); //Set the static reference (see the field javadoc) JCrypterFrame.mainFrame = this; //Fill the algorithm containers fillAlgorithms(); //Init the GUI components initComponents(); //Init the cipher parameters selector cmpDialog = new CipherModePaddingSelectorDialog(this, true); //Modal; Selections automatically set //Init the random number generator frame rngFrame = new RandomNumberGeneratorFrame(); //Force seeding of the random generator by requesting a random number rand.nextLong(); //Init the cipher field cmpDialog.updateCipher(); //Test if the usr has installed the Unlimited Strength Policy Files testUnlimitedPolicy(); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { inputLabel = new javax.swing.JLabel(); plaintextScrollPane = new javax.swing.JScrollPane(); inputField = new javax.swing.JTextArea(); passwordLabel = new javax.swing.JLabel(); passwordField = new javax.swing.JPasswordField(); ciphertextLabel = new javax.swing.JLabel(); ciphertextScrollPane = new javax.swing.JScrollPane(); outputField = new javax.swing.JTextArea(); okButton = new javax.swing.JButton(); decryptCheckbox = new javax.swing.JCheckBox(); menuBar = new javax.swing.JMenuBar(); fileMenu = new javax.swing.JMenu(); loadFromFileMenuItem = new javax.swing.JMenuItem(); saveToFileMenuItem = new javax.swing.JMenuItem(); extrasMenu = new javax.swing.JMenu(); cmpMenuItem = new javax.swing.JMenuItem(); signatureMenuItem = new javax.swing.JMenuItem(); asymmetricEncryptionMenuItem = new javax.swing.JMenuItem(); genKeysMenuItem = new javax.swing.JMenuItem(); passwordGeneratorMenuItem = new javax.swing.JMenuItem(); digestMenuItem = new javax.swing.JMenuItem(); hmacMenuItem = new javax.swing.JMenuItem(); showOIDsMenuItem = new javax.swing.JCheckBoxMenuItem(); utilsMenu = new javax.swing.JMenu(); base64MenuItem = new javax.swing.JMenuItem(); generateRandomFileMenuItem = new javax.swing.JMenuItem(); randomNumberGeneratorMenuItem = new javax.swing.JMenuItem(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle(i18n.getString("JCrypter")); // NOI18N inputLabel.setDisplayedMnemonic('i'); inputLabel.setLabelFor(inputField); inputLabel.setText(i18n.getString("Input:")); // NOI18N inputField.setColumns(20); inputField.setLineWrap(true); inputField.setRows(5); plaintextScrollPane.setViewportView(inputField); passwordLabel.setDisplayedMnemonic('p'); passwordLabel.setLabelFor(passwordField); passwordLabel.setText(i18n.getString("Password:")); // NOI18N ciphertextLabel.setDisplayedMnemonic('o'); ciphertextLabel.setLabelFor(outputField); ciphertextLabel.setText(i18n.getString("Output:")); // NOI18N outputField.setColumns(20); outputField.setEditable(false); outputField.setLineWrap(true); outputField.setRows(5); ciphertextScrollPane.setViewportView(outputField); okButton.setMnemonic('o'); okButton.setText(i18n.getString("OK")); // NOI18N okButton.addMouseListener(new java.awt.event.MouseAdapter() { public void mouseClicked(java.awt.event.MouseEvent evt) { okButtonMouseClicked(evt); } }); decryptCheckbox.setMnemonic('d'); decryptCheckbox.setText(i18n.getString("Decrypt")); // NOI18N fileMenu.setMnemonic('f'); fileMenu.setText(i18n.getString("File")); // NOI18N loadFromFileMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O, java.awt.event.InputEvent.CTRL_MASK)); loadFromFileMenuItem.setMnemonic('l'); loadFromFileMenuItem.setText(i18n.getString("Load_from_file")); // NOI18N loadFromFileMenuItem.setToolTipText(i18n.getString("Load_data_from_a_file_into_the_input_field")); // NOI18N loadFromFileMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { loadFromFileMenuItemActionPerformed(evt); } }); fileMenu.add(loadFromFileMenuItem); saveToFileMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.CTRL_MASK)); saveToFileMenuItem.setMnemonic('s'); saveToFileMenuItem.setText(i18n.getString("Save_to_file")); // NOI18N saveToFileMenuItem.setToolTipText(i18n.getString("Save_the_data_from_the_output_field_to_a_file")); // NOI18N saveToFileMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { saveToFileMenuItemActionPerformed(evt); } }); fileMenu.add(saveToFileMenuItem); menuBar.add(fileMenu); extrasMenu.setMnemonic('e'); extrasMenu.setText(i18n.getString("Extras")); // NOI18N extrasMenu.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { extrasMenuActionPerformed(evt); } }); cmpMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_M, java.awt.event.InputEvent.CTRL_MASK)); cmpMenuItem.setText(i18n.getString("Cipher_settings")); // NOI18N cmpMenuItem.addMouseListener(new java.awt.event.MouseAdapter() { public void mouseClicked(java.awt.event.MouseEvent evt) { cmpMenuItemMouseClicked(evt); } }); cmpMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { cmpMenuItemActionPerformed(evt); } }); extrasMenu.add(cmpMenuItem); signatureMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_D, java.awt.event.InputEvent.CTRL_MASK)); signatureMenuItem.setText(i18n.getString("Signatures")); // NOI18N signatureMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { signatureMenuItemActionPerformed(evt); } }); extrasMenu.add(signatureMenuItem); asymmetricEncryptionMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_R, java.awt.event.InputEvent.CTRL_MASK)); asymmetricEncryptionMenuItem.setText(i18n.getString("RSA")); // NOI18N asymmetricEncryptionMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { asymmetricEncryptionMenuItemActionPerformed(evt); } }); extrasMenu.add(asymmetricEncryptionMenuItem); genKeysMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_G, java.awt.event.InputEvent.CTRL_MASK)); genKeysMenuItem.setText(i18n.getString("Generate_keys")); // NOI18N genKeysMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { genKeysMenuItemActionPerformed(evt); } }); extrasMenu.add(genKeysMenuItem); passwordGeneratorMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_P, java.awt.event.InputEvent.CTRL_MASK)); passwordGeneratorMenuItem.setText(i18n.getString("Password_generator")); // NOI18N passwordGeneratorMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { passwordGeneratorMenuItemActionPerformed(evt); } }); extrasMenu.add(passwordGeneratorMenuItem); digestMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_H, java.awt.event.InputEvent.CTRL_MASK)); digestMenuItem.setText(i18n.getString("Digests")); // NOI18N digestMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { digestMenuItemActionPerformed(evt); } }); extrasMenu.add(digestMenuItem); hmacMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_H, java.awt.event.InputEvent.ALT_MASK | java.awt.event.InputEvent.CTRL_MASK)); hmacMenuItem.setText(i18n.getString("HMAC")); // NOI18N hmacMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { hmacMenuItemActionPerformed(evt); } }); extrasMenu.add(hmacMenuItem); showOIDsMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O, java.awt.event.InputEvent.CTRL_MASK)); showOIDsMenuItem.setText(i18n.getString("Show_OID_Algorithms")); // NOI18N showOIDsMenuItem.addChangeListener(new javax.swing.event.ChangeListener() { public void stateChanged(javax.swing.event.ChangeEvent evt) { showOIDsMenuItemStateChanged(evt); } }); extrasMenu.add(showOIDsMenuItem); menuBar.add(extrasMenu); utilsMenu.setMnemonic('u'); utilsMenu.setText(i18n.getString("Utils")); // NOI18N base64MenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_B, java.awt.event.InputEvent.CTRL_MASK)); base64MenuItem.setText(i18n.getString("Base64")); // NOI18N base64MenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { base64MenuItemActionPerformed(evt); } }); utilsMenu.add(base64MenuItem); generateRandomFileMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_R, java.awt.event.InputEvent.SHIFT_MASK | java.awt.event.InputEvent.CTRL_MASK)); generateRandomFileMenuItem.setText(i18n.getString("Generate_entropy_file")); // NOI18N generateRandomFileMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { generateRandomFileMenuItemActionPerformed(evt); } }); utilsMenu.add(generateRandomFileMenuItem); randomNumberGeneratorMenuItem.setAccelerator(javax.swing.KeyStroke .getKeyStroke(java.awt.event.KeyEvent.VK_N, java.awt.event.InputEvent.CTRL_MASK)); randomNumberGeneratorMenuItem.setText(i18n.getString("Random_number_generator")); // NOI18N randomNumberGeneratorMenuItem.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { randomNumberGeneratorMenuItemActionPerformed(evt); } }); utilsMenu.add(randomNumberGeneratorMenuItem); menuBar.add(utilsMenu); setJMenuBar(menuBar); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap().addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addComponent(passwordLabel) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED).addComponent( passwordField, javax.swing.GroupLayout.DEFAULT_SIZE, 243, Short.MAX_VALUE)) .addGroup(layout.createSequentialGroup().addComponent(inputLabel) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(plaintextScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 271, Short.MAX_VALUE)) .addGroup(layout.createSequentialGroup().addComponent(ciphertextLabel).addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addGroup( layout.createSequentialGroup().addGap(1, 1, 1).addComponent(decryptCheckbox) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(okButton, javax.swing.GroupLayout.DEFAULT_SIZE, 193, Short.MAX_VALUE)) .addGroup(layout.createSequentialGroup() .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(ciphertextScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 260, Short.MAX_VALUE))))) .addContainerGap())); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(inputLabel).addComponent(plaintextScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(passwordLabel).addComponent(passwordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(decryptCheckbox).addComponent(okButton)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(ciphertextLabel).addComponent(ciphertextScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE)) .addContainerGap())); pack(); }// </editor-fold>//GEN-END:initComponents @SuppressWarnings("empty-statement") private void okButtonMouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_okButtonMouseClicked if (decryptCheckbox.isSelected()) { decryptSymmetric(); } else { encryptSymmetric(); } }//GEN-LAST:event_okButtonMouseClicked private void cmpMenuItemMouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_cmpMenuItemMouseClicked cmpDialog.setVisible(true); }//GEN-LAST:event_cmpMenuItemMouseClicked private void cmpMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cmpMenuItemActionPerformed cmpDialog.setVisible(true); }//GEN-LAST:event_cmpMenuItemActionPerformed private void loadFromFileMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_loadFromFileMenuItemActionPerformed FileInputStream fin = null; try { fileChooser.showOpenDialog(this); File file = fileChooser.getSelectedFile(); byte[] buffer = new byte[(int) file.length()]; fin = new FileInputStream(file); fin.read(buffer); fin.close(); inputField.setText(new String(buffer)); } catch (IOException ex) { JOptionPane.showMessageDialog(this, ex.getLocalizedMessage(), i18n.getString("IO_Error"), JOptionPane.ERROR_MESSAGE); } finally { try { fin.close(); } catch (IOException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } } }//GEN-LAST:event_loadFromFileMenuItemActionPerformed private void saveToFileMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_saveToFileMenuItemActionPerformed FileOutputStream fout = null; try { fileChooser.showSaveDialog(this); File file = fileChooser.getSelectedFile(); byte[] buffer = outputField.getText().getBytes(); fout = new FileOutputStream(file); fout.write(buffer); fout.close(); } catch (IOException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } finally { try { fout.close(); } catch (IOException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } catch (NullPointerException ex) { } } }//GEN-LAST:event_saveToFileMenuItemActionPerformed private void signatureMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_signatureMenuItemActionPerformed new SignatureFrame().setVisible(true); }//GEN-LAST:event_signatureMenuItemActionPerformed private void asymmetricEncryptionMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_asymmetricEncryptionMenuItemActionPerformed new AsymmetricCrypterFrame().setVisible(true); }//GEN-LAST:event_asymmetricEncryptionMenuItemActionPerformed private void extrasMenuActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_extrasMenuActionPerformed new KeyGeneratorFrame().setVisible(true); }//GEN-LAST:event_extrasMenuActionPerformed private void passwordGeneratorMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_passwordGeneratorMenuItemActionPerformed new PasswordGeneratorFrame().setVisible(true); }//GEN-LAST:event_passwordGeneratorMenuItemActionPerformed private void digestMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_digestMenuItemActionPerformed new DigestFrame().setVisible(true); }//GEN-LAST:event_digestMenuItemActionPerformed private void hmacMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_hmacMenuItemActionPerformed new HMACFrame().setVisible(true); }//GEN-LAST:event_hmacMenuItemActionPerformed private void genKeysMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_genKeysMenuItemActionPerformed new KeyGeneratorFrame().setVisible(true); }//GEN-LAST:event_genKeysMenuItemActionPerformed private void base64MenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_base64MenuItemActionPerformed new Base64UtilFrame().setVisible(true); }//GEN-LAST:event_base64MenuItemActionPerformed private void generateRandomFileMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_generateRandomFileMenuItemActionPerformed new RandomFileCreatorFrame().setVisible(true); }//GEN-LAST:event_generateRandomFileMenuItemActionPerformed private void showOIDsMenuItemStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_showOIDsMenuItemStateChanged cmpDialog.updateComboBoxContents(); }//GEN-LAST:event_showOIDsMenuItemStateChanged private void randomNumberGeneratorMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_randomNumberGeneratorMenuItemActionPerformed rngFrame.setVisible(true); }//GEN-LAST:event_randomNumberGeneratorMenuItemActionPerformed private void decryptSymmetric() { try { //Cipher field is automatically initialized by the CMP Dialog int bs = cipher.getBlockSize(); //Blocksize //Get data byte[] passwordBytes = new String(passwordField.getPassword()).getBytes(); byte[] input; //Base64-decode the ciphertext input = Base64.decode(inputField.getText().getBytes()); //All data will be read from this stream ByteArrayInputStream bin = new ByteArrayInputStream(input); //Hash the password to fit it into the right size (with salt) byte[] salt = new byte[8]; byte[] keyBytes = new byte[32]; bin.read(salt); //Get the salt from the input stream Digest digest = new SHA256Digest(); digest.update(salt, 0, salt.length); //Add the salt... digest.update(passwordBytes, 0, passwordBytes.length); //...and the password to the generator digest.doFinal(keyBytes, 0); //Do the final hashing //IV generation/retrievement byte[] iv = new byte[cipher.getBlockSize()]; //Using iv array only with offset bin.read(iv); IvParameterSpec ivSpec = new IvParameterSpec(iv, 0, bs); //Generate the secret key spec SecretKeySpec keySpec = new SecretKeySpec(keyBytes, cmpDialog.getCipher()); cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec); CipherInputStream cin = new CipherInputStream(bin, cipher); //Print the input (minus the IV, if decrypting) into cout byte[] plaintext = new byte[bin.available()]; cin.read(plaintext); //Decrypts the rest data in bin //Close the cipher stream cin.close(); //Print the output into outputField and Base64-encode if we have to encrypt outputField.setText(new String(plaintext).trim()); } catch (InvalidAlgorithmParameterException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) //Must not occure { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } catch (InvalidKeyException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } } private void decryptWithBypass() //TODO this is only a test, review!! { try //TODO this is only a test, review!! { PaddedBufferedBlockCipher bc = new PaddedBufferedBlockCipher(new TwofishEngine(), new PKCS7Padding()); int bs = bc.getBlockSize(); //Blocksize //Get data byte[] passwordBytes = new String(passwordField.getPassword()).getBytes(); byte[] input; //Base64-decode the ciphertext input = Base64.decode(inputField.getText().getBytes()); //All data will be read from this stream ByteArrayInputStream bin = new ByteArrayInputStream(input); //Hash the password to fit it into the right size (with salt) byte[] salt = new byte[8]; byte[] keyBytes = new byte[32]; bin.read(salt); //Get the salt from the input stream Digest digest = new SHA256Digest(); digest.update(salt, 0, salt.length); //Add the salt... digest.update(passwordBytes, 0, passwordBytes.length); //...and the password to the generator digest.doFinal(keyBytes, 0); //Do the final hashing //IV generation/retrievement byte[] iv = new byte[cipher.getBlockSize()]; //Using iv array only with offset bin.read(iv); ByteArrayOutputStream bout = new ByteArrayOutputStream(); /* * IMPORTANT NOTE: * This implementation bypasses the policy but does only support TWOFISH/ECB */ CipherParameters params = new ParametersWithIV(new KeyParameter(keyBytes), iv); bc.init(false, params); byte[] plaintext = new byte[bc.getOutputSize(bin.available())]; //All at once byte[] buffer = new byte[bs]; byte[] oBuffer = new byte[bs]; //OutputBuffer while (bin.available() > 0) { int read = bin.read(buffer); bc.processBytes(buffer, 0, read, oBuffer, 0); bout.write(oBuffer); } outputField.setText(new String(bout.toByteArray())); } catch (IOException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } } private void encryptSymmetric() { try { //cipher field is initalized by the cmp dialog and at the beginning //Using BouncyCastle JCEs int bs = cipher.getBlockSize(); //Blocksize //Get data byte[] passwordBytes = new String(passwordField.getPassword()).getBytes(); byte[] input; //Base64-decode the ciphertext input = inputField.getText().getBytes(); //All data is written to this stream ByteArrayOutputStream bout = new ByteArrayOutputStream(); //Hash the password to fit it into the right size (with salt) byte[] salt = new byte[8]; byte[] keyBytes = new byte[32]; //Assume a 256-bit key rand.nextBytes(salt); bout.write(salt); //Write the salt to the stream Digest digest = new SHA256Digest(); //Assume a 256-bit key digest.update(salt, 0, salt.length); //Add the salt... digest.update(passwordBytes, 0, passwordBytes.length); //...and the password to the generator digest.doFinal(keyBytes, 0); //Do the final hashing //Generate the iv and the IvParameter spec byte[] iv = new byte[cipher.getBlockSize()]; rand.nextBytes(iv); IvParameterSpec ivSpec = new IvParameterSpec(iv, 0, bs); //Generate the secret key spec SecretKeySpec keySpec = new SecretKeySpec(keyBytes, cmpDialog.getCipher()); cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec); CipherOutputStream cout = new CipherOutputStream(bout, cipher); //If print the IV into bout bout.write(iv); cout.write(input); //All data has been written so close the streams cout.close(); bout.close(); //Print the output into outputField and Base64-encode if we have to encrypt outputField.setText(new String(Base64.encode(bout.toByteArray()))); } catch (InvalidAlgorithmParameterException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) //Must not occure { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } catch (InvalidKeyException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } } private void encryptWithBypass() //TODO this is only a test, review!! { try //TODO this is only a test, review!! { PaddedBufferedBlockCipher bc = new PaddedBufferedBlockCipher(new TwofishEngine(), new PKCS7Padding()); //Using BouncyCastle JCEs int bs = cipher.getBlockSize(); //Blocksize //Get data byte[] passwordBytes = new String(passwordField.getPassword()).getBytes(); byte[] input; //Base64-decode the ciphertext input = inputField.getText().getBytes(); ByteArrayInputStream bin = new ByteArrayInputStream(input); //All data is written to this stream ByteArrayOutputStream bout = new ByteArrayOutputStream(); //Hash the password to fit it into the right size (with salt) byte[] salt = new byte[8]; byte[] keyBytes = new byte[32]; //Assume a 256-bit key rand.nextBytes(salt); bout.write(salt); //Write the salt to the stream Digest digest = new SHA256Digest(); //Assume a 256-bit key digest.update(salt, 0, salt.length); //Add the salt... digest.update(passwordBytes, 0, passwordBytes.length); //...and the password to the generator digest.doFinal(keyBytes, 0); //Do the final hashing //Generate the iv and the IvParameter spec byte[] iv = new byte[cipher.getBlockSize()]; rand.nextBytes(iv); /* * IMPORTANT NOTE: * This implementation bypasses the policy but does only support TWOFISH/ECB */ CipherParameters params = new ParametersWithIV(new KeyParameter(keyBytes), iv); bc.init(true, params); byte[] plaintext = new byte[bc.getOutputSize(bin.available())]; //All at once byte[] buffer = new byte[bs]; byte[] oBuffer = new byte[bs]; //OutputBuffer while (bin.available() > 0) { int read = bin.read(buffer); bc.processBytes(buffer, 0, read, oBuffer, 0); bout.write(oBuffer); } outputField.setText(new String(bout.toByteArray())); } catch (IOException ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { new JCrypterFrame().setVisible(true); } }); } //Encryption variables public static SecureRandom rand = new SecureRandom(); public static final String[] modesArray = { "ECB", "CBC", "CCM", "CFB", "CTS", "EAX", "GCM", "GOF", "OFB", "SIC" //NOI18N }; public static final String[] paddingsArray = { "PKCS7", "TBC", "X923", "None", "ZeroByte", "ISO10126d2", "ISO7816d4" //NOI18N }; //The file chooser is used by all frames to save the current directory //Declared here because many dialogs need a reference to it public JFileChooser fileChooser = new JFileChooser(); /** * This implements singleton design pattern: * Every time a new JCrypterFrame is created (has to happen only once!) * it is saved in this static field so other apps have access to all * commonly used fields etc. */ private Cipher cipher = null; public static JCrypterFrame mainFrame; private ResourceBundle i18n = ResourceBundle.getBundle("jcrypter/Bundle"); //NOI18N //Collections to save algorithm names private static Set<String> ciphers = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> keyAgreements = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> macs = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> messageDigests = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> signatures = new TreeSet(String.CASE_INSENSITIVE_ORDER); //The same without OIDs private static Set<String> ciphersNoOIDs = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> keyAgreementsNoOIDs = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> macsNoOIDs = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> messageDigestsNoOIDs = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static Set<String> signaturesNoOIDs = new TreeSet(String.CASE_INSENSITIVE_ORDER); private static List<String> modes = Arrays.asList(modesArray); private static List<String> paddings = Arrays.asList(paddingsArray); //Regex patterns private static Pattern oidPattern = //Used to filter OIDs from algorithms Pattern.compile("(OID\\.)?(\\d+\\.)+\\d+"); //NOI18N //Field to avoid time-consuming MT19937 reseeding private RandomNumberGeneratorFrame rngFrame = null; //Dialog members public CipherModePaddingSelectorDialog cmpDialog = null; // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JMenuItem asymmetricEncryptionMenuItem; private javax.swing.JMenuItem base64MenuItem; private javax.swing.JLabel ciphertextLabel; private javax.swing.JScrollPane ciphertextScrollPane; private javax.swing.JMenuItem cmpMenuItem; private javax.swing.JCheckBox decryptCheckbox; private javax.swing.JMenuItem digestMenuItem; private javax.swing.JMenu extrasMenu; private javax.swing.JMenu fileMenu; private javax.swing.JMenuItem genKeysMenuItem; private javax.swing.JMenuItem generateRandomFileMenuItem; private javax.swing.JMenuItem hmacMenuItem; private javax.swing.JTextArea inputField; private javax.swing.JLabel inputLabel; private javax.swing.JMenuItem loadFromFileMenuItem; private javax.swing.JMenuBar menuBar; private javax.swing.JButton okButton; private javax.swing.JTextArea outputField; private javax.swing.JPasswordField passwordField; private javax.swing.JMenuItem passwordGeneratorMenuItem; private javax.swing.JLabel passwordLabel; private javax.swing.JScrollPane plaintextScrollPane; private javax.swing.JMenuItem randomNumberGeneratorMenuItem; private javax.swing.JMenuItem saveToFileMenuItem; private javax.swing.JCheckBoxMenuItem showOIDsMenuItem; private javax.swing.JMenuItem signatureMenuItem; private javax.swing.JMenu utilsMenu; // End of variables declaration//GEN-END:variables /** * @return the cipherName */ public String getCipherName() { return cmpDialog.getCipher(); } /** * Test if the unlimited strength policy files are installed */ private void testUnlimitedPolicy() { try { byte[] data = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }; // create a 64 bit secret key from raw bytes byte[] key = new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }; //NOI18N byte[] out = new byte[256]; // create a cipher and attempt to encrypt the data block with our key BlockCipher c = new BlowfishEngine(); c.init(true, new KeyParameter(key)); c.processBlock(data, 0, out, 0); c.reset(); // create a 192 bit secret key from raw bytes SecretKey key192 = new SecretKeySpec(new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 }, "Blowfish"); //NOI18N // now try encrypting with the larger key c.init(true, new KeyParameter(out)); c.processBlock(data, 0, out, 0); //If no exception is thrown before System.out.println(i18n.getString("Unrestricted_policy_test:_passed")); } /*catch (InvalidKeyException ex) { JOptionPane.showMessageDialog(this, i18n.getString("The_Unrestricted_Policy_Files_are_not_installed_in_your_JRE.") + i18n.getString("Please_install_them_to_enable_strong_cryptography!"), i18n.getString("Restricted_policy_files"), JOptionPane.ERROR_MESSAGE); }*/ catch (Exception ex) { Logger.getLogger(JCrypterFrame.class.getName()).log(Level.SEVERE, null, ex); } } /** * Fills the algorithms which determinate the */ private static void fillAlgorithms() { Provider[] providers = Security.getProviders(); for (int i = 0; i != providers.length; i++) { Iterator it = providers[i].keySet().iterator(); while (it.hasNext()) { String entry = (String) it.next(); if (entry.startsWith("Alg.Alias.")) //NOI18N { entry = entry.substring("Alg.Alias.".length()); //NOI18N } //Filter PBE, asymmetric and invalid algorithms (not case-sensitive if (entry.contains("PBE") || //NOI18N entry.toLowerCase().contains("supported") || //NOI18N entry.toLowerCase().contains("wrap") || //NOI18N entry.toLowerCase().contains("padding") || //NOI18N entry.toLowerCase().contains("rsa") || //NOI18N entry.toLowerCase().contains("elgamal")) //NOI18N { continue; } if (entry.startsWith("Cipher.")) //NOI18N { String algorithm = entry.substring("Cipher.".length()); //NOI18N ciphers.add(algorithm); Matcher m = oidPattern.matcher(algorithm); if (!m.matches()) { ciphersNoOIDs.add(algorithm); } } else if (entry.startsWith("KeyAgreement.")) //NOI18N { String algorithm = entry.substring("KeyAgreement.".length()); //NOI18N keyAgreements.add(algorithm); Matcher m = oidPattern.matcher(algorithm); if (!m.matches()) { keyAgreementsNoOIDs.add(algorithm); } } else if (entry.startsWith("Mac.")) //NOI18N { //4 = "HMAC(-|/)". String algorithm = entry.substring("Mac.".length()); //NOI18N //Filter out algorithms not beginning with "HMAC" if (!algorithm.startsWith("HMAC")) //NOI18N { continue; } else { algorithm = algorithm.substring(4); } //Remove the first character of the algorithm string if it is not a letter if (algorithm.charAt(0) == '-' || algorithm.charAt(0) == '/') { algorithm = algorithm.substring(1); } //Check if the algorithm is not already in the set //Also applies to macsNoOIDs if (macs.contains(algorithm)) { continue; } macs.add(algorithm); Matcher m = oidPattern.matcher(algorithm); if (!m.matches()) { macsNoOIDs.add(algorithm); } } else if (entry.startsWith("MessageDigest.")) //NOI18N { String algorithm = entry.substring("MessageDigest.".length()); //NOI18N if (algorithm.endsWith("ImplementedIn")) //NOI18N { continue; } messageDigests.add(algorithm); Matcher m = oidPattern.matcher(algorithm); if (!m.matches()) { messageDigestsNoOIDs.add(algorithm); } } else if (entry.startsWith("Signature.")) //NOI18N { String algorithm = entry.substring("Signature.".length()); //NOI18N signatures.add(algorithm); Matcher m = oidPattern.matcher(algorithm); if (!m.matches()) { signaturesNoOIDs.add(algorithm); } } } } } public void setCipher(Cipher cipher) { this.cipher = cipher; } }