Cipher cipher = null;
        String transformation = KeyProperties.KEY_ALGORITHM_AES + "/"
                + KeyProperties.BLOCK_MODE_CBC + "/"
                + KeyProperties.ENCRYPTION_PADDING_PKCS7;
        try {
            cipher = Cipher.getInstance(transformation);

        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (NoSuchPaddingException e) {
            e.printStackTrace();
        }

        try {
            String message = "This is the message i want send";
            byte[] messageByte = message.getBytes();
            //get the keystore instance, do we can get a key from it
            keyStore.load(null);
            SecretKey secretKey = (SecretKey) keyStore.getKey(KEY_STORE_NAME, null);
            //get the cipher to use this secret key to encrypt the message
            if (cipher != null) {
                cipher.init(Cipher.ENCRYPT_MODE, secretKey);
                cipher.doFinal(messageByte);
            }


        } catch (CertificateException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (UnrecoverableKeyException e) {
            e.printStackTrace();
        } catch (KeyStoreException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (BadPaddingException e) {
            e.printStackTrace();
        } catch (IllegalBlockSizeException e) {
            e.printStackTrace();
        }
        return cipher;