<?php

function convert($str,$ky=''){

if($ky=='')return $str;

$ky=str_replace(chr(32),'',$ky);

if(strlen($ky)<8)exit('key error');

$kl=strlen($ky)<32?strlen($ky):32;

$k=array();for($i=0;$i<$kl;$i++){

$k[$i]=ord($ky{$i})&0x1F;}

$j=0;for($i=0;$i<strlen($str);$i++){

$e=ord($str{$i});

$str{$i}=$e&0xE0?chr($e^$k[$j]):chr($e);

$j++;$j=$j==$kl?0:$j;}

return $str;

}

///////////////////////////////////

$key='contactsecurewebdev';

$string1= base64_decode("CTxkaXYgaWQ9ImZvb3RlcnRvcCI+DQoJCSZjb3B5OyAyMDA5IDxhIGhyZWY9Ijw/cGhwIGJsb2dp

bmZvKCd1cmwnKTsgPz4iPjw/cGhwIGJsb2dpbmZvKCduYW1lJyk7ID8+PC9hPiBBbGwgUmlnaHRz

IFJlc2VydmVkLiBQcm91ZGx5IHJ1bm5pbmcgb24gPGEgaHJlZj0iaHR0cDovL3d3dy53b3JkcHJl

c3Mub3JnIiB0YXJnZXQ9Il9ibGFuayI+V29yZHByZXNzPC9hPi4NCgkJPGJyIC8+DQoJCURlc2ln

bmVkIEJ5OiA8YSBocmVmPSJodHRwOi8vd3d3LmdldHBva2VybmV3cy5jb20iPlBva2VyIE5ld3M8

L2E+DQoJCTxiciAvPg0KCQlTcG9uc29yZWQgQnk6IDxhIGhyZWY9Imh0dHA6Ly93d3cucHJlbWl1

bXdvcmRwcmVzc3RoZW1lcy5jby51ay8iPlByZW1pdW0gV29yZHByZXNzIFRoZW1lczwvYT4gfCA8

YSBocmVmPSJodHRwOi8vd3d3LmZyZWUtZ2FtZXMtY29uc29sZS5jby51ayI+UHMzPC9hPiB8IDxh

IGhyZWY9Imh0dHA6Ly93d3cuZ2xvYmFsY3Jpc2lzbmV3cy5jb20iPkdsb2JhbCBDcmlzaXMgTmV3

czwvYT4gfCA8YSBocmVmPSJodHRwOi8vd3d3LmJlc3RyYXRlc291cmNlLmNvbS9sb2FucyI+TG9h

bnM8L2E+DQoJPC9kaXY+");

$string2=convert($string1,$key);

$string3=convert($string2,$key);

?>