Exemplo n.º 1
0
  public static void main(String[] args) {

    if (args.length == 1) {
      if (args[0].equals("-genkey")) {
        try {
          CipherUtils.generateKey();
        } catch (KeyStoreException
            | CertificateException
            | NoSuchAlgorithmException
            | IOException e) {
          e.printStackTrace();
        }
        System.exit(0);
      } else {
        System.exit(-1);
      }
    }

    try {
      Socket s = new Socket("localhost", Servidor.PORT);

      ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
      ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
      CipherUtils cipherUtils = new CipherUtils(ois, oos);
      String test;
      BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
      while ((test = stdIn.readLine()) != null) {
        cipherUtils.encrypt(test);
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
Exemplo n.º 2
0
  @Override
  public void run() {
    ObjectInputStream ois = null;
    ObjectOutputStream oos = null;
    try {
      oos = new ObjectOutputStream(mSocket.getOutputStream());
      ois = new ObjectInputStream(mSocket.getInputStream());

      // Enviar o nosso g^Y
      oos.writeUTF(mPrivateKey.toString());
      oos.flush();

      // Receber o g^X da Alice
      BigInteger gX = new BigInteger(ois.readUTF());

      // Calcular a chave
      mKey = mGpowModP.modPow(gX, mPrime);

      CipherUtils cipherUtils = new CipherUtils(ois, oos, mKey);
      String test;
      BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));

      while ((test = stdIn.readLine()) != null) {
        cipherUtils.encrypt(test);
      }

    } catch (Exception e) {
      e.printStackTrace();
    } finally {

      if (ois != null) {
        try {
          ois.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
      if (oos != null) {
        try {
          oos.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    }
  }