Trying to use RSA encryption, failing...

[soccermiles]

I am trying to use RSA encryption and I don't know what I'm doing wrong.
Am I supposed to come up with byte values for each character of the message and put them in a byte[]?:confused:
Here is the code I'm trying to use (It's triggered by a button in a GUI)
hopefully there are enough annotations...

    private void encodeButtonActionPerformed(java.awt.event.ActionEvent evt) {                                             
        try{
            //making keypairgenerator
        RSAKeyPairGenerator keygen=new RSAKeyPairGenerator();
            //making a secure random to initialize key generator
        SecureRandom rand1=new SecureRandom();
            //initializing keygen
        keygen.initialize(2048,rand1);
            //naming key pair
        KeyPair keyPair=keygen.generateKeyPair();
            //defining public and private keys, setting text output to show keys
        PublicKey publicKey=keyPair.getPublic();
        encodePubKey.setText(publicKey.toString());
        PrivateKey privateKey=keyPair.getPrivate();
        encodePrivKey.setText(privateKey.toString());
            //Making cipher object to encode string
        Cipher encipher=Cipher.getInstance("RSA");
            //initializing cipher object
        encipher.init(Cipher.ENCRYPT_MODE,publicKey);
            //defining string to be encoded
        String encode=encodeText.getText();
            //encrypting
        byte[] encoded=Cipher.getInstance(encode).doFinal();
            //output
        encodeOutput.setText(encoded.toString());
            //catching exceptions
        }catch (NoSuchAlgorithmException a) {
           System.err.println("Caught NoSuchAlgorithmException"+a.getMessage());
        }catch (NoSuchPaddingException p) {
           System.err.println("Caught NoSuchPaddingException" + p.getMessage());
        }catch (InvalidKeyException k) {
           System.err.println("Caught InvalidKeyException" + k.getMessage());
        }catch (IllegalBlockSizeException b) {
          System.err.println("Caught IllegalBlockSizeException"+b.getMessage());
        }catch (BadPaddingException bp) {
            System.err.println("Caught BadPaddingException" + bp.getMessage());
        }
    }

as you can see, there are a LOT OF EXCEPTIONS!!:eek:

[iluxa]

your code looks good... just in case, take a look at these tutorials: RSA algorithm*«*Security*«*Java Tutorial

[soccermiles]

thank you for that, it is probably the only good tutorial I have found on this.
I am actually trying to make a text encoder using a Swing GUI, so I need to fit this all in one method statement.:eek:
tyty, I will mark as solved if I solve it. Otherwise, if anyone knows why this isnt working, please advise.