IFF Encoding

[Gogeta70]

For all of you folks out there that would like practically unbreakable encryption/encoding, i bring you the IFF code.

The variables in this script: $s1, $s2, and $s3 will need to be changed by you. More specifically, you'll need to change the contents between the str_split(" and ");. These characters are the ones allowed to be encoded, so pick ones that work for you. Also, they each MUST be in a different order, or it defeats the purpose of the code itself. They also must be the same length. Enjoy.

Code: Select all

<?PHP

$sequence = str_split(312);
$s1 = str_split("abcdefghijklmnopqrstuvwxyz1234567890!@#$%^&*()_+{}:\"<>?-=[];',./\| ");
$s2 = str_split("qazwsxedcrfvtgbyhnujmikolp,./;'[]\=-)(*&^%$# @!?><\":|}{+_0123456789");
$s3 = str_split("poiuytrewqasdfghjklmnbvcxz/']\.;[,=-)(*&^!@#$%<>:{?\"}| _+1324576809");
$string = str_split(strtolower($_GET['s']));
$b = 0;
$encrypted = NULL;

for($a = 0; $a < count($string); $a++)
{
if($b > 2)
  $b = 0;

if($b == 0)
{
$key = array_search($string[$a], $s3);
if($key === FALSE)
  die("Invalid characters in string.");
$encrypted .= "$key:";
}

if($b == 1)
{
$key = array_search($string[$a], $s1);
if($key === FALSE)
  die("Invalid characters in string.");
$encrypted .= "$key:";
}

if($b == 2)
{
$key = array_search($string[$a], $s2);
if($key === FALSE)
  die("Invalid characters in string.");
$encrypted .= "$key:";
}

$b++;
}

$len = strlen($encrypted)-1;
$encrypted = substr($encrypted, 0, $len);

echo $encrypted;

?>

[G-Brain]

Actually, that's very breakable. I'll post some code soon

[G-Brain]

Code: Select all

function iffdecode($encoded)                                                                                                                                                                                        
{                                                                                                                                                                                                                   
    $s1 = str_split("abcdefghijklmnopqrstuvwxyz1234567890!@#$%^&*()_+{}:\"<>?-=[];',./\| ");                                                                                                                        
    $s2 = str_split("qazwsxedcrfvtgbyhnujmikolp,./;'[]\=-)(*&^%$# @!?><\":|}{+_0123456789");                                                                                                                        
    $s3 = str_split("poiuytrewqasdfghjklmnbvcxz/']\.;[,=-)(*&^!@#$%<>:{?\"}| _+1324576809");                                                                                                                        
    $split = split(":",$encoded);                                                                                                                                                                                   
    $i = 1;                                                                                                                                                                                                         
    $result = "";                                                                                                                                                                                                   
    foreach ($split as $number) {
        if ($i == 4) {
            $i = 1;
        }
        if ($i == 1) {
            $result .= $s3[$number];
        }
        elseif ($i == 2) {
            $result .= $s1[$number];
        }
        elseif ($i == 3) {
            $result .= $s2[$number];
        }
        $i++;
    }
    return $result;
}

[Gogeta70]

Well, you have to understand that you will not have the keys to use to break the code. So of course you can break the iff code if you have the keys lol.