密码加密的一种方式 

 1 <label>username:</label><input id="uid" type="text" />
 2 <label>password:</label><input id="pwd" type="password" />
 3 <input type="submit" />
 4 <script type="text/javascript">
 5     var t = new Date*1,
 6             uid = $("#uid").val(),
 7             pwd = $("#pwd").val(),
 8             delta = encrypt($("#pwd").val() + t);
 9     $.post("./login.php",{
10         uid: $("#uid").val(),
11         pwd: delta,
12         tid: t
13     }, function(data){
14         //do something.
15     })
16 </script>
define("uid", "user-A");
define("pwd", "user-A-pwd");
if(time() - $_POST['tid'] > 60*2 ||
    $_POST['uid'] !== uid ||
    decrypt(pwd . $_POST['tid']) !== $_POST['pwd']){
    die("error");
}
  • 时间超过2分钟
  • uid不匹配
  • pwd与t的组合密码不匹配
  • md5
posted @ 2013-12-18 11:13  sexy_girl  阅读(215)  评论(0)    收藏  举报