求大神告知这是什么加密方法！加密的内容是 jquery？还是 xml？

jQuery180028153278985662245_1486446388913("PD94bWwgdmVyc$lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz4KPGtycGFubyBvbnN0YXJ0PSJrcnBhbm9YbWwoKSI+CiAgCiAgCiAgCiAgPHNjZW5lIG5hbWU9InNjZW5lMTY0MjA$IiBnaWQ9IjIwNjAiIG5vdGU9IiIgcGFub3JhbWFfZWZmZWN0cz0iMCI+PGltYWdlIHR5cGU9IkNVQkUiIG11bHRpcmVzPSJ0cnVlIiB0aWxlc$l6ZT0iNTEyIj48bGV$ZWwgdGlsZWRpbWFnZXdpZHRoPSIzNTQwIiB0aWxlZGltYWdlaGVpZ$h0PSIzNTQwIj48dXAgdXJsPSJodHRwOi8vZi5leHBvb$4uY$9tL3N1YjQvdXNlci9QYW5vcmFtYS8yMi8xMzkyMi8xMTI$ODQ4NTQ1LTM1NDB4MzU0MF9uM18ldmsldS5qcGciLz48ZG93biB1cmw9Imh0dHA6Ly9mLmV4cG9vbi5jb$0vc3ViNC91c$VyL1Bhbm9yYW1hLzIyLzEzOTIyLzExMjYxMzcyMDgtMzU0MHgzNTQwX$4zXyV$ayV1LmpwZyIvPjxsZWZ0IHVybD0iaHR0cDovL$YuZXhwb$9uLmNvbS9zdWI0L3VzZXIvUGFub3JhbWEvMjIvMTM5MjIvMTEyNDM4ODgzMC0zNTQweDM1NDBfbjNfJXZrJXUuanBnIi8+PHJpZ$h0IHVybD0iaHR0cDovL$YuZXhwb$9uLmNvbS9zdWI0L3VzZXIvUGFub3JhbWEvMjIvMTM5MjIvMTEyNDE4NDY0MC0zNTQweDM1NDBfbjNfJXZrJXUuanBnIi8+PGZyb$50IHVybD0iaHR0cDovL$YuZXhwb$9uLmNvbS9zdWI0L3VzZXIvUGFub3JhbWEvMjIvMTM5MjIvMTEyNDUwNzc0My0zNTQweDM1NDBfbjNfJXZrJXUuanBnIi8+PGJhY$sgdXJsPSJodHRwOi8vZi5leHBvb$4uY$9tL3N1YjQvdXNlci9QYW5vcmFtYS8yMi8xMzkyMi8xMTI0NjQ0ODg5LTM1NDB4MzU0MF9uM18ldmsldS5qcGciLz48L$xldmVsPjxsZXZlbCB0aWxlZGltYWdld$lkdGg9IjE3NzAiIHRpbGVkaW1hZ$VoZWlnaHQ9IjE3NzAiPjx1cCB1cmw9Imh0dHA6Ly9mLmV4cG9vbi5jb$0vc3ViNC91c$VyL1Bhbm9yYW1hLzIyLzEzOTIyLzExMjY4NDg1NDUtMzU0MHgzNTQwX$4yXyV$ayV1LmpwZyIvPjxkb3duIHVybD0iaHR0cDovL$YuZXhwb$9uLmNvbS9ZrJXUuanBnIi8+PGRvd$4gdXJsPSJodHRwOi8vZi5leHBvb$4uY$9tL3N1YjQvdXNlci9QYW5vcmFtYS8yMi8xMzkyMi8wMTEzNzQzNzgyLTMzMjR4MzMyNF9uMV8ldmsldS5qcGciLz48bGVmdCB1cmw9Imh0dHA6Ly9mLmV4cG9vbi5jb$0vc3ViNC91c$VyL1Bhbm9yYW1hLzIyLzEzOTIyLzAxMT5qE6JCo6L6+IiB1cmw9Imh0dHA6Ly9zc$RmYWRhZGFzZCIgaWNvPSJodHRwOi8vcy5leHBvb$4uY$9tL$ltYWdlL3VzZXIvZGVmYXVsdC1saW5rLWljby90YW9iYW8ucG5nIi8+PGxpbmsgbmFtZT0ibGlua18yNzcwIiB0aXRsZT0iZGFzZHNhZGFzZCIgdXJsPSJodHRwOi8vZHNhZHNhZGRjYXNkYXNhZHNhIiBpY$89Imh0dHA6Ly9zLmV4cG9vbi5jb$0vaW1hZ$UvdXNlci9kZWZhdWx0LWxpbmstaWNvL$RpYW5waW5nLnBuZyIvPjwvbGlua$RhdGE+PC9wb$ludGRhdGE+PC9rcnBhbm8+Cg==")

xqin

2017-02-07 18:21:24 +08:00

@yao978318542 找到了.
还原的方法为: 将收到的字符串里的 $ 符号替换为你那个 uid%10 (即 uid 取余 10) 之后的内容, 然后 Base64 解码就可以了.

还原代码来自于: http://s.expoon.com/image/z/krpano/js/expoon.api.js?time=201612141434 这个文件

var thiskey = user_id % 10;
var a = 'PD94bWwgdmVyc$lvbj0iMS4wIiBlbmNvZGluZz0id.................'
var c = a.replace(/\$/g, thiskey);
var b = new Base64();
c = b.decode(c);

xqin

2017-02-07 19:28:39 +08:00

@yao978318542 你不知道取余是什么意思吗?

下面为 PHP 代码,你可以自己运行一下,

<?php

$uid = 13922;

$url = 'http://api.expoon.com/XmlKrpano/getCrptyXml/uid/' . $uid;

$data = file_get_contents($url);

$data = substr($data, 2, -2); //去掉不需要的内容

$key = $uid % 10; //得到 key

$data = str_replace('$', $key, $data); //进行替换

$data = base64_decode($data); // base64 解码

var_dump($data);//输出内容