// From http://code.calum.org/
		public static byte[] decrypt(byte[] cipherBytes, PrivateKey privKey) {
        Logger log = Logger.getLogger("foo");
        //    log.info("PrivateKey passed to us as " + privKey.toString());
        try {
            Cipher cipher = Cipher.getInstance(Main.ASYMMETRIC);
            cipher.init(Cipher.DECRYPT_MODE, privKey);
            byte[] returnBytes = cipher.doFinal(cipherBytes);
            //log.info("Successfully decrypted data");
            return returnBytes;
        } catch (InvalidKeyException ex) {
            ex.printStackTrace();
        } catch (BadPaddingException ex) {
            // No need to show this.
        } catch (NoSuchPaddingException ex) {
            ex.printStackTrace();
        } catch (NoSuchAlgorithmException ex) {
            ex.printStackTrace();
        } catch (IllegalBlockSizeException ex) {
            //Too big? Max 245 bytes.
            log.info(ex.toString());
        }
        return null;
    }