Base64 Decoden!

<?php
/*---------------------------------------------------------+
| BS-Fusion - Content Management System
| Version 1.00.0
+----------------------------------------------------------+
| Copyright © 2009 Manuel Kurz
| http://www.bs-fusion.org/
+----------------------------------------------------------+
| This program is released as free software under the
| Affero GPL license (version 3). You can redistribute
| it and/or modify it under the terms of this license which
| you can read by viewing the included agpl-3.0.txt or
| online at http://www.gnu.org/licenses/agpl-3.0.html.
| Removal of this copyright header is strictly prohibited
| without written permission from the original author(s).
+----------------------------------------------------------+
| Code based on PHP-Fusion
| http://www.php-fusion.co.uk/
+---------------------------------------------------------*/
if (preg_match("/bs_encoder.php/i",$_SERVER['PHP_SELF'])) {die();}

/** Change this line only before you use the encoder **/
if (!defined("BS_GLOBAL_KEY")) define("BS_GLOBAL_KEY","BS-Fusion Keep it Simple is a simple Content Management System");

/** Don't change anything after this line **/
function bs_change_code($code,$mkw='',$mkd="0"){$pw=0;$mkwr=md5(base64_encode($mkw));if ($mkd==0){$encstr='';for($i=0;$i<strlen($code);$i++){$ze=ord($mkwr{$pw});$pe=ord($code{$i});$oe=($i%2)!=0?$i*25:$i/2;$tchar=dechex(ord(chr(($pe^$ze)+$oe+($pw*$i)-~$i+($oe & $pw))));$encstr.=strlen($tchar)==1?'0'.$tchar:$tchar;$pw<strlen($mkwr)-1?$pw++:$pw=0;}return $encstr;}else{$dencstr='';$d=0;for($i=0;$i<strlen($code)/2;$i++){$zd=ord($mkwr{$pw});$pd=hexdec(substr($code,$d,2));$od=($i%2)!=0?$i*25:$i/2;$dencstr.=chr($pd-($od & $pw)+~$i-($pw*$i)-$od^$zd);$pw<strlen($mkwr)-1?$pw++:$pw=0;$d+=2;}return $dencstr;}}function bs_enctxt($str){$from='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';$to='nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM';$encstring=strtr($str,$from,$to);return $encstring;}function bs_encode($code,$mkw=""){$MKW05236OKR=($mkw!=""?BS_GLOBAL_KEY.$mkw:BS_GLOBAL_KEY);$MKW05236STR=trim(htmlentities($code));$MKW05236ENC=bs_change_code(bs_enctxt($MKW05236STR),$MKW05236OKR);return $MKW05236ENC;}function bs_decode($code,$mkw=""){$MKW05236OKR=($mkw!=""?BS_GLOBAL_KEY.$mkw:BS_GLOBAL_KEY);$MKW05236STR=$code;$MKW05236ENC=bs_enctxt(bs_change_code($MKW05236STR,$MKW05236OKR,1));return $MKW05236ENC;}function bs_encoder($text,$pwd="",$encoder=true){$key=!empty($pwd)?md5(BS_GLOBAL_KEY.$pwd):md5(BS_GLOBAL_KEY);if($encoder){if(function_exists("mcrypt_encode")){$iv_size = mcrypt_get_iv_size(MCRYPT_XTEA,MCRYPT_MODE_ECB);$iv = mcrypt_create_iv($iv_size,crc32($key));$crypttext=mcrypt_encrypt(MCRYPT_XTEA,$key,$text,MCRYPT_MODE_ECB,$iv);}else{$crypttext=$text;}$enc=bs_encode($crypttext,$key);}else {$text=bs_decode($text,$key);if(function_exists("mcrypt_decode")){$iv_size=mcrypt_get_iv_size(MCRYPT_XTEA,MCRYPT_MODE_ECB);$iv=mcrypt_create_iv($iv_size,crc32($key));$crypt=mcrypt_decrypt(MCRYPT_XTEA, $key,$text,MCRYPT_MODE_ECB,$iv);}else{$crypt = $text;}$enc = $crypt;}return trim($enc);}
// Modifizierte MD5-Verschlüsselung Funktion (Silvermoon)
function md($str="",$md_hash="",$double_hash=false) {
$hex = "";
$Var_A = 38094183;$Var_B = 7822759277;$Var_C = 4454765896;$Var_D = 1241839396160;
$var = $Var_A+$Var_B+$Var_C+$Var_D;
$var2 = $Var_A.$Var_B.$Var_C.$Var_D.$Var_C.$Var_A.$Var_B.$Var_D.$Var_B.$Var_A.$var.$str;
if ($str!="") {
$length=strlen(trim($str));
for ($i=0; $i<$length; $i++){$hex.=str_pad(dechex(ord($str[$i])), 2, 0, STR_PAD_LEFT);}
}
$hex = str_replace(array("0","2","4","6","8","b","c","d","e"),array("a","b","c","d","e","7","3","1","5"),$var.$hex.$var2);$bs_hash = md5($md_hash.$hex.$md_hash);if (!$double_hash) return $bs_hash; else return md5($bs_hash);
}
// ENDE DES ENCODERS \\

?>