';
$base64='SFb+9uIIyCsmnqEfRl8zAhNU/E1tAPhISDC+bL9isqssivFWCHKZ3qqop/2c9M055H4=';
//$base64='GicrJfhqvKUCol1jsnhIZM2H/UQa8ZtGIs2HvZsnCDziSSIPKbo3QJEd7qvPwFJMOEs=';
//$base64='GykqJiswalge36/EHThFZfZOk0UbaRoUNiIBtyDZKQj2s7fdlSV5VrFDlSjETOvwg0s=';
echo 'base64: '.$base64.'
';
$str=base64_decode($base64);
echo 'mixed hex: '.bin2hex($str).'
';
$tmp=ord(substr($str, 1, 1))-36;
if (($tmp)%3==0) {$s=$tmp;}
if (($tmp-1)%3==1) {$s=$tmp-1;}
if (($tmp-2)%3==2) {$s=$tmp-2;}
$i=ord(substr($str, floor($s/10)+17+1+2, 1))-18-$s%12;
$h=ord(substr($str, floor($s/10)+17+2, 1))-48-$s%9;
$d=ord(substr($str, $i%10+7+1+2, 1))-84-$s%6;
$y1=20; $y2=15; $m='04';
$str_time="$y1$y2-$m-$d $h:$i:$s";
echo 'str_time: '.$str_time.'
';
$time_crypt=substr($str, 2, floor($i/10))
.substr($str, floor($i/10)+1+2+1, $i%10+7+2-(floor($i/10)+1+2)-1)
.substr($str, $i%10+7+1+2+1, floor($s/10)+17+2-($i%10+7+1+2)-1)
.substr($str, floor($s/10)+17+1+2+1, $s%10+24+2-(floor($s/10)+17+1+2)-1)
.substr($str, $s%10+24+1+2+1)
.'
';
echo 'crypted hex: '.bin2hex($time_crypt).'
';
$time_bin=chr($y1+22+$s%2).chr($y2+22+$s%3).chr($m+65+$s%4).chr($d+84+$s%6).chr($h+48+$s%9).chr($i+18+$s%12).chr($s+36+$s%3).chr(8);
$decrypt=mcrypt_decrypt(MCRYPT_DES, $time_bin, $time_crypt, MCRYPT_MODE_ECB);
echo 'decrypt:'.bin2hex($decrypt).'
';
function sign($str_time)
{
$key='x^z324_client_android';
$time=strtotime($str_time);
$y=date('Y', $time);
$y1=substr($y, 0, 2);
$y2=substr($y, 2, 2);
$m=date('m', $time);
$d=date('d', $time);
$h=date('H', $time);
$i=date('i', $time);
$s=date('s', $time);
$time_bin=chr($y1+22+$s%2).chr($y2+22+$s%3).chr($m+65+$s%4).chr($d+84+$s%6).chr($h+48+$s%9).chr($i+18+$s%12).chr($s+36+$s%3).chr(8);
$content=str_pad($key, 32, "\0", STR_PAD_RIGHT).str_repeat("\x08", 8);
$time_crypt=@mcrypt_encrypt(MCRYPT_DES, $time_bin, $content, MCRYPT_MODE_ECB);
echo 'crypted hex: '.bin2hex($time_crypt).'
';
$rtn=substr($time_bin, 5, 2).substr($time_crypt, 0, floor($i/10));
$poss=array(floor($i/10), floor($i/10)+1, $i%10+7, $i%10+7+1, floor($s/10)+17, floor($s/10)+17+1, $s%10+24, $s%10+24+1);
foreach ($poss as $i=>$p)
{
$rtn{$p+2}=$time_bin{$i};
if ($i<=6)
{
$rtn=$rtn.substr($time_crypt, $poss[$i]-$i, $poss[$i+1]-$poss[$i]-1);
}
}
$rtn=$rtn.substr($time_crypt, $s%10+18);
echo 'mixed hex: '.bin2hex($rtn).'
';
$rtn=base64_encode($rtn);
return $rtn;
}
echo 'sign:
';
echo 'str_time:'.$str_time.'
';
$rtn=sign($str_time);
echo 'signed:'.$rtn."
";
?>