Clases.cCifrado.java Source code

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Here is the source code for Clases.cCifrado.java

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/*
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package Clases;

import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Scanner;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;

/**
 *
 * @author Alumno
 */
public class cCifrado {

    private final int puerto = 9000;
    private final String receptor = "127.0.0.1";

    public String Encriptar(String texto) {

        String secretKey = "MARSOFT"; //llave para encriptar datos
        String base64EncryptedString = "";

        try {

            MessageDigest md = MessageDigest.getInstance("MD5");
            byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
            byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);

            SecretKey key = new SecretKeySpec(keyBytes, "DESede");
            Cipher cipher = Cipher.getInstance("DESede");
            cipher.init(Cipher.ENCRYPT_MODE, key);

            byte[] plainTextBytes = texto.getBytes("utf-8");
            byte[] buf = cipher.doFinal(plainTextBytes);
            byte[] base64Bytes = Base64.encodeBase64(buf);
            base64EncryptedString = new String(base64Bytes);

        } catch (Exception ex) {

            return "Ha habido un problema enviando datos";
        }
        return base64EncryptedString;
    }

    public String Desencriptar(String textoEncriptado) {

        String secretKey = "MARSOFT"; //llave para encriptar datos
        String base64EncryptedString = "";

        try {
            byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));
            MessageDigest md = MessageDigest.getInstance("MD5");
            byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
            byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
            SecretKey key = new SecretKeySpec(keyBytes, "DESede");

            Cipher decipher = Cipher.getInstance("DESede");
            decipher.init(Cipher.DECRYPT_MODE, key);

            byte[] plainText = decipher.doFinal(message);

            base64EncryptedString = new String(plainText, "UTF-8");

        } catch (Exception ex) {
        }
        return base64EncryptedString;
    }

    public String pedirClave(String dato) {

        String clave = "";
        Scanner sc = new Scanner(System.in);
        Socket socket;
        try {
            String ipServidor = receptor;
            int pto = puerto;
            System.out.println("conectando con el servidor...");
            socket = new Socket(ipServidor, pto);
            Scanner entrada = new Scanner(socket.getInputStream());
            PrintStream salidaServer = new PrintStream(socket.getOutputStream());
            salidaServer.println(dato);
            clave = entrada.nextLine();
            System.out.println("Dato recibido: " + clave);
            socket.close();

        } catch (IOException ex) {
            System.err.println("Cliente> " + ex.getMessage());
        }
        return clave;
    }

}