HTTPS/SSL
http://www.cpplive.com/html/1387.html
http://bbs.chinaunix.net/forum.php?mod=viewthread&tid=3632794
http://bbs.chinaunix.net/forum.php?mod=viewthread&tid=3555749
http://bbs.chinaunix.net/forum.php?mod=viewthread&tid=1151834
http://www.chinaz.com/web/2010/1228/151732.shtml
http://www.cnblogs.com/happyhippy/archive/2007/05/14/746476.html