Shared key

SharedKey.java

    private static byte[] getShared(SecretKey key, PublicKey pubkey) {
        try {
            Cipher cipher = Cipher.getInstance("RSA");
            cipher.init(Cipher.ENCRYPT_MODE, pubkey);
            return cipher.doFinal(key.getEncoded());
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }