dd

<?php
require_once 'Crypt/RSA.php';

class RsaComponent extends Object {

   var $components = array('RequestHandler');

   var $Controller = null;

   var $claveSecreta ="scMj6UvMqf1pOlM";
   var $clavePublica = "YTozOntpOjA7czo0OiJREHO2IjtpOjE7czoyOiJLByI7aToyO3M6NjoicHVibGljIjt9";
   var $clavePrivada  ="YTozOntpOjA7czo0OiJREHO2IjtpOjE7czo0OiK/ao1kIjtpOjI7czo3OiJwcml2YXRlIjt9";
   var $firma = "f6GZYX676kldfGF6gg45VtDYQoHEIOT05oF6LpkZXC4r7fkQNy1pXfh5sCK0=";

   function initialize(&$Controller) {
     // $this->Controller = $Controller;
   }

   function encrypt($tarjeta) {

    $plain_text = $tarjeta;
    $public_key = $this->clavePublica;

    $key = Crypt_RSA_Key::fromString($public_key);
   // check_error($key);
    $rsa_obj = new Crypt_RSA;
   // check_error($rsa_obj);

    $_SESSION['plain_text'] = $plain_text;
    $_SESSION['public_key'] = $public_key;
    $tarjetaCrypt= $rsa_obj->encrypt($plain_text, $key);
    //check_error($rsa_obj);
    return $tarjetaCrypt;
  }

   function decrypt($tarjetaBD) {
    $enc_text = $tarjetaBD;
    $private_key = $this->clavePrivada;

    $key = Crypt_RSA_Key::fromString($private_key);
    //check_error($key);
    $rsa_obj = new Crypt_RSA;
    //check_error($rsa_obj);
    $rsa_obj->setParams(array('dec_key' => $key));
    //check_error($rsa_obj);

    $tarjeta = $rsa_obj->decrypt($enc_text);

    return $tarjeta;

   }

  function validate_sign($clave,$claveBD) {
    /*$document = $clave;
    $signature = $claveBD;
    $public_key = $this->clavePublica;

    $key = Crypt_RSA_Key::fromString($public_key);
    //check_error($key);
    $rsa_obj = new Crypt_RSA;
    //check_error($rsa_obj);

    $valido = $rsa_obj->validateSign($document, $signature, $key) ? 'valid' : 'invalid';

    return $valido;*/
    return ($clave == $this->claveSecreta) ? true : false;
 }


}
?>