lib.clases_cripto.java Source code

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Here is the source code for lib.clases_cripto.java

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/*
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package lib;

import java.security.MessageDigest;
import java.util.Arrays;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.digest.Md5Crypt;

/**
 *
 * @author lenin
 */
public class clases_cripto {
    public static String Encriptar(String texto) {

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

        try {

            MessageDigest md = MessageDigest.getInstance("MD5");
            byte[] digestOfPassword = md.digest(texto.getBytes("utf-8"));
            byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
            Md5Crypt.md5Crypt(keyBytes);
            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 base64EncryptedString;
    }

    public static String Desencriptar(String textoEncriptado) throws Exception {

        String secretKey = "qualityinfosolutions"; //llave para desenciptar 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;
    }
}