关于javascript:测评几大js加密站的加密质量3

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1. 简介

​ 公司网站的接口常常被爬虫爬，时不时就导致服务器压力过大，白白耗费公司服务器资源。于是开始接触 js 加密这块的业务。发现了不少反对 js 在线加密的站，以及各种加密计划，在这做个笔记，一一列举各大加密站的优缺点。看看哪种才是最平安的 html 代码加密形式。

2. 加密摸索

​ 最开始在网络上搜寻 js 加密，看到了很多解决方案，例如 crypto、base64、MD5、sha1、sha256、unicode 编码、AES/DES、RSA 都是优良的 js 加密算法，然而最终我发现，这些加密都是在前端实现的，也就是在用户电脑上实现的，齐全透明化的，所以爬虫作者破解难度也很低，他不须要去摸索你这个算法计算的过程，他只有拿到你雷同的加密算法代码，就能够通过同样的伎俩加密进去，继而盗取接口信息。

3. 工具介绍

​ Sojson反对 js 的不可逆混同加密，和很多高级的加密配置，还减少了小白专用的一键配置惯例配置，和禁控制台调试输入、A 级爱护、变量办法全混同等诸多高级配置，很多 细节做的不错。查了一下资格，这家站 13 年创立的，搞了快有十个年头了，是个老品牌。接下来咱们做个 demo 加密一下试试，以下加密，除了根本配置，我还勾选了办法函数变量全副重命名。

4.js 案例代码
(function () {String.prototype.searchAB = function (){return this.match(/[^A|B]/g);
    }
    const str = '本工具由 wwBw.jsjiami.cAom 提供接口。\n 专一 JS 平安畛域近 10 年 \n 企业化经营 \n 业余的 JS 加密研发团队。'.searchAB().toString().replaceAll(',', '');
    alert(str);
    console.log(str);
}());
5. 通过 Sojson 加密后
/*
 * 加密工具曾经降级了一个版本，目前为 jsjiami.com.v5，次要增强了算法，以及防破解【相对不可逆】配置，耶稣也无奈 100% 还原，我说的。;
 * 曾经打算把这个工具根底性能始终收费上来。还心愿反对我。* 另外 jsjiami.com.v5 曾经强制退出校验，正文能够去掉，然而 jsjiami.com.v5 不能去掉（如果你开明了 VIP，能够手动去掉），其余都没有任何绑定。* 誓死不会退出任何后门，jsjiami.com JS 加密的使命就是为了爱护你们的 Javascript。* 正告：如果您歹意去掉 jsjiami.com.v5 那么咱们将不会爱护您的 JavaScript 代码。请遵守规则
 * 新版本: https://www.jsjiami.com/ 反对批量加密，反对大文件加密，领有更多加密。*/
 
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6. 格式化一下，把正文清理掉。
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}(window));
encode_version = 'jsjiami.com.v5';
7. 加密后剖析

​ 说实话，看到加密后的代码，第一眼人是解体的，没看到啥有用的信息。所有办法和变量都混同了。格式化后咱们从头开始看起。首先是变量 __0xeb218，存的是一个数组，和上篇讲到的那个加密一样，然而这里把里边的值都加密过了，初步看格局是进行了一个Base64 编码。而后下方第二个办法对上边的数组做了元素地位的调换。而后第二个看起来是个加密函数，因为咱们晓得本人的源码是什么，找到了本人的 alert 和 console 代码，还有咱们本人写的一个正则，发现有两处截然不同的。

这个加密让我给评分的话 我给 8 分

1. 加密把函数名变量名全加密了，破解的人看到的第一眼心态曾经麻了

2. 代码办法中层层镶嵌的调用，居心叵测的人破解起来比拟烧脑

3. 连参数值都要给他混同一下，几乎是惨无人道

基本上用这个 sojson.v5 加密的话，能够挡住所有白嫖党了，再也不必放心代码被白嫖了。

sojson.v6

sojson.com

正文完
javascript
发表至： javascript
2022-09-15
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