encryption - RSA Enabled Simple Java Chat - Not PKCS#1 block type 2 or Zero padding -


I have created a simple Java chat application below to follow

chat client. Run Java - The dialog box is displayed where the user enters the user name. Then the private key and the public key is created and stored in C / Username / PublicKi, C: / Username / Pivetakic.

When we re-run the Chatecolient Java, the phase repeats.

Then User2 encrypts the user2 in a encrypted form using the User2 public key (which is working fine) (after encryption, the message is stored in the text file), then user 2 Clicks the decrypt button that decrypt text (reads encrypted text using User 2) Private key is displayed in TextRena.

When I try to decrypt, I can not find the "PKCS # 1 block type 2 or zero padding" exception 

  public static byte [] encrypt (String text, the key of the public) {// Receive an RSA cipher object and the last cipher cipher = cipher to the provider. Print Get Instance (Algorithm); // Encrypt plain text using public key cipher.init (cipher NCRIPTMMEE, key); Byte [] ciphertext = cipher.dominal (text.getbits ("UTF8"); Return org.apache.commons.codec.binary.Base64.encodeBase64 (cipher text); } Public static string decrypt throws (string text, private key) {byte [dectyptedText = null; // Receive an RSA cipher object and print the provider last cipher cipher = cipher Gate instence (algorithm); // Decrypt the text using the private key cipher.init (cipher DECRAPTMMEE, key); Byte [] bytefiletext = org.apache.commons.codec.binary.Base64.decodeBase64 (text): byte [] cipherdata = cipher.domain (byte cipher text); Return a new string (decrypted text); } Private Zero throws btnDecryptActionPerformed (ActionEvent evt) {String name11 = this.getTitle (); String test90 = faucet; String PRIVATE_KEY_FILE = "C: / keys /" + name11 + "/ private.key"; Buffet = thread in the thread; Try {New == BufferedReader (New FileReader ("cipher.txt")); } Hold (FileNotFoundException e1) {// TODO Auto-Generated Cache Block e1.printStackTrace (); } Try {while (in.ready ()) {String stest = in.readLine (); Test90 = idiot; }} Catch (IOE EXPRESS E1) {// Todo Auto-Generate Cache Block e1.printStackTrace (); } ObjectInputStream inputstream = faucet; {InputStream = Try New Object Instestream (New File InStstream (PRIVATE_KEY_FILE)); } Hold (FileNotFoundException e1) {// TODO Auto-Generated Cache Block e1.printStackTrace (); } Grip (IOException e1) {// TODO Auto-generated Cache Block e1.printStackTrace (); } Private personal = null; Try {privateKey = (PrivateKey) inputStream.readObject (); } Catch (Clasnotfoundive Express E1) {// Todo Auto-Generate Cache Block e1.printStackTrace (); } Grip (IOException e1) {// TODO Auto-generated Cache Block e1.printStackTrace (); } Try {InputStream = new ObjectInputStream (New FileInputStream (PRIVATE_KEY_FILE)); } Hold (FileNotFoundException E) {// TODO Auto generated blocking block e.printStackTrace (); } Grip (IOException E) {// TODO Auto-Generated Catch Block e.printStackTrace (); } {Private private key = (private) Try inputStream.readObject (); } Catch (Clasnostfundai Express E) {// To-O Auto-Generated Catch Block e.printStackTrace (); } Grip (IOException E) {// TODO Auto-Generated Catch Block e.printStackTrace (); } Plain plain text; // byte [] test100 = test90.getBytes (); // out.println (test100); Plain text = decrypt (test 90, personal); (Get error here) decrypt text .append (plain text); }   
 
 
 Highlight code below  test90  only included The last line in the  cipher.txt  file. Is there only 1 line in cipher.txt? If you want to read everything, then you have to add each line as you have read it.  
  while (in.ready ()) {string string = in.readLine (); Test90 = idiot; }   
 This is a good idea in the  system.out  variable  test90  in the  decrypt  method For that the expected base 64 data is being decrypted to you.

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