com.juicioenlinea.application.secutiry.Security.java Source code

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Here is the source code for com.juicioenlinea.application.secutiry.Security.java

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package com.juicioenlinea.application.secutiry;

import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;

/**
 *
 * @author eddy_
 */
public class Security {

    public static String encriptar(String texto) {

        final String secretKey = "hunter"; //llave para encriptar datos
        String encryptedString = null;

        try {

            MessageDigest md = MessageDigest.getInstance("SHA");
            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);
            encryptedString = new String(base64Bytes);

        } catch (NoSuchAlgorithmException | UnsupportedEncodingException | NoSuchPaddingException
                | InvalidKeyException | IllegalBlockSizeException | BadPaddingException ex) {
            Logger.getLogger(Security.class.getName()).log(Level.SEVERE, null, ex);
        }
        return encryptedString;
    }

    public static String desencriptar(String textoEncriptado) {

        final String secretKey = "hunter"; //llave para encriptar datos
        String encryptedString = null;

        try {
            byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("UTF-8"));
            MessageDigest md = MessageDigest.getInstance("SHA");
            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);

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

        } catch (UnsupportedEncodingException | InvalidKeyException | NoSuchAlgorithmException
                | NoSuchPaddingException | IllegalBlockSizeException | BadPaddingException ex) {
            Logger.getLogger(Security.class.getName()).log(Level.SEVERE, null, ex);
        }

        return encryptedString;
    }
}