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<?
/*
* index.php
*
* Copyright 2013 Miguel Rafael Esteban Martín <miguel.esteban@logicaalternativa.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
session_start();
// Se calcula la cadena aleatoria
$tokenSesion = rand(1,9) * 1000000 + rand(0,10) * rand(0, 10000) ;
// Se guarda en sesión
$_SESSION['tokenSesion'] = $tokenSesion;
?>
<html>
<head>
<title>[LogicaAlternativa.com] Ejemplo de securización acceso sha1</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript" src="https://raw.github.com/kvz/phpjs/master/functions/xml/utf8_encode.js"></script>
<script language="JavaScript" src="https://raw.github.com/kvz/phpjs/master/functions/strings/sha1.js"></script>
<script language="JavaScript" type="text/JavaScript">
<!--
function acceder(){
var contra = document.forms.formularioAcceso.contra.value + '';
var token= sha1('<?=$tokenSesion?>' + contra);
document.forms.formularioAcceso.contra.value = '';
document.forms.formularioAcceso.token.value = token;
return true;
}
function sf(){
document.forms.formularioAcceso.usu.focus();
}
-->
</script>
</head>
<body onLoad="javaScript:sf();">
<div align="center">
<p>[<b>LogicaAlternativa.com</b>] Ejemplo de securización acceso sha1</p>
<p>Para más información leé el <a href="http://wwww.logicaalternativa.com/securizacion-de-formulario-de-acceso-con-sha-1">POST</a>. También puedes ver el <a href="https://github.com/logicaalternativa/ejemplosPhp/tree/master/loginsha1/index.php" target="_blank">código</a></p>
</div>
<br/>
<form name="formularioAcceso" method="post" action="resultado.php" onSubmit="return acceder()">
<input name="token" type="hidden" value="">
<table width="500" border="0" align="center" cellpadding="6" cellspacing="0">
<tr>
<td><div align="right">Usuario:</div></td>
<td> <input name="usu" type="text" id="usu" value=""> </td>
</tr>
<tr>
<td><div align="right">Contrase&ntilde;a:</div></td>
<td><input name="contra" type="password" id="contra"></td>
</tr>
<tr>
<td colspan="2"><div align="center">
<input type="reset" name="Reset" value="Cancelar">
&nbsp
<input name="entrar" type="submit" id="entrar" value=" Entrar ">
</div></td>
</tr>
</table>
<br>
</form>
<br/>
<div align="center">
<p>Usuarios de prueba</p>
<table width="0" border="0" cellpadding="6" cellspacing="0">
<tr>
<th><div align="right">Usuario</div></th>
<th><div align="left">Contraseña</div></th>
</tr>
<tr>
<td><div align="right">usu1</div></td>
<td><div align="left">contra1</div></td>
</tr>
<tr>
<td><div align="right">usu1</div></td>
<td><div align="left">contra2</div></td>
</tr>
</table>
</div>
</body>
</html>
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