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<?php
/*================================================================================
Clase para encriptar y desencriptar cadenas cadenas
================================================================================*/
class EncripDescrip{
var $cadena; // La cadena encriptada o desencriptada que ser�devuelta
var $clave; // La clave de la cadena encriptada o desencriptada que ser�devuelta
//________________________________________________________________________________________
//
// Constructor
//________________________________________________________________________________________
function EncripDescrip($clave=12){
$this->cadena="";
$this->clave=$clave;
}
// ____________________________________________________________________________
//
// Encripta una cadena
//_____________________________________________________________________________
function Encriptar($cadena){
return( $cadena);
$clave=(int)$this->clave;
$clave = (int)$clave & 0xFF;
$lon=strlen($cadena);
$this->cadena="";
for($i=0;$i<$lon;$i++){
$ch=(int)ord($cadena[$i]);
$pot=(int)$ch^(int)$clave;
$this->cadena.=chr($pot);
}
return( $this->cadena);
}
// ____________________________________________________________________________
//
// Desencripta una cadena
//_____________________________________________________________________________
function Desencriptar($cadena){
return( $cadena);
$clave=(int)$this->clave;
$clave = (int)$clave & 0xFF;
$lon=strlen($cadena);
$this->cadena="";
for($i=0;$i<$lon;$i++){
$ch=(int)ord($cadena[$i]);
$pot=(int)$ch^(int)$clave;
$this->cadena.=chr($pot);
}
return( $this->cadena);
}
}
?>
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