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<h1 id="shadowsocks相关知识">Shadowsocks相关知识</h1>
<p>Shadowsocks官网: <a href="https://shadowsocks.org" target="_blank">https://shadowsocks.org</a></p>
<p>Shadowsocks官方GitHub: <a href="https://github.com/shadowsocks" target="_blank">https://github.com/shadowsocks</a></p>
<font color="red">A secure socks5 proxy, designed to protect your Internet traffic.</font>
<h3 id="shadowsocks作者是谁？是否还在更新？">Shadowsocks作者是谁？是否还在更新？</h3>
<p>Shadowsocks是由若干人因为兴趣而制作的一个项目，主要开发者和领导者是<a href="https://twitter.com/clowwindy" target="_blank">@clowwindy</a> ，但是在2015年下半年被“相关部门”约谈喝茶，于是被迫删除<a href="https://github.com/clowwindy" target="_blank">Github</a>的源码及相关文档。
<img src="https://www.png8.com/2019/03/23/5c959c520c72d.png" alt="1"></p>
<p>但Shadowsocks属于开源项目，所以删除前已经有人备份，同时由另一个志愿者跟进维护原版<a href="https://github.com/shadowsocks/shadowsocks-windows/releases" target="_blank">Shadowsocks</a>客户端，而其他基于Shadowsocks项目的第三方项目有：<a href="https://github.com/shadowsocksr-backup/shadowsocksr" target="_blank">ShadowsocksR</a>、<a href="https://github.com/shadowsocks/shadowsocks-qt5" target="_blank">Shadowsocks-qt5</a>、<a href="https://sourceforge.net/projects/sscap/" target="_blank">ShadowsocksCap</a>等来维护更新Window/Linux客户端（其他系统的不一一举例了）。</p>
<h3 id="shadowsocks是否安全？加密性如何？">Shadowsocks是否安全？加密性如何？</h3>
<p>Shadowsocks是被设计来混淆数据，增加 墙 检查出流量特征所需的计算量，提高实时检测和匹配的成本，而不是加密。</p>
<p>SS的作者多次强调过这一点---><a href="https://github.com/shadowsocks/shadowsocks/issues/169" target="_blank">Correct username/password auth model · Issue #169 · shadowsocks/shadowsocks · GitHub</a></p>
<blockquote>
<p>"We don't need security. We need indistinguishability from random bytes."</p>
</blockquote>
<p>再三强调不要忘记SS作者的本意——这是一个能帮你上谷歌，上被墙屏蔽的网站的工具，其意义是瞒过 墙 的实时流量检测，而不是瞒过 墙 后面的master minds。</p>
<p>Shadowsocks是一个业余兴趣制作的项目，并没有经过严谨的密码学算法计算，Shadowsocks不是一个VPN，它无法100%的保护你的数据安全！</p>
<h3 id="shadowsocks-原版和-shadowsocksr-的区别是什么？">Shadowsocks 原版和 ShadowsocksR 的区别是什么？</h3>
<p>Shadowsocks 原版在更新到 v2.5.8 之后被“相关部门”约谈喝茶了，于是就停止了更新。但是应网友要求，另一个开发者把 v2.5.8 的一些严重BUG修复了更新为 v3.0，然后宣布不再管了。</p>
<p>Shadowsocks 原版本身，也是具有协议和混淆功能的，也就是原版协议/混淆，只是只有一个不能自行选择，并且全靠作者维护，作者喝茶后，就 GG 了，其他的接手者只是继续完善其他的功能。</p>
<p>而 ShadowsocksR 是在原版作者喝茶前，由另一个程序员 <a href="https://twitter.com/breakwa11" target="_blank">@breakwa11</a> 制作的第三方版本，主要特点是增加了一些人性化功能，比如服务器连接统计、连接管理、协议转换、多重代理等。</p>
<p>最主要的是 ShadowsocksR 的混淆协议和插件功能，因为 Shadowsocks 原版项目已经无人维护，同时 墙 的工作人员也在不停的寻找效率批量匹配特征的方法，目前 SS 原版协议在大部分地区已经被 匹配流量特征 QOS 限速了。</p>
<p>所以 ShadowsocksR 的混淆协议和插件就应运而生，其目的就是欺骗 墙 目前的流量匹配功能和 QOS 限速。</p>
<p>需要说明的是，ShadowsocksR 目前最新的协议和混淆是会增加延迟和损耗15%的速度(因为混淆需要时间，越复杂的混淆越不容易被墙发现，同时混淆时间越长)，所以如果你没有限速，或许用原版协议和混淆会更好。</p>
<p>你可以理解为在原版协议的基础上加强了混淆功能，所以在部分地区只有使用 ShadowsocksR 的混淆功能才能达到最佳速度，当然不同地区也不一样，所以最好都试试！</p>
<p>感谢参考：<a href="https://doub.io/ss-jc35/" target="_blank">逗比根据地-->关于Shadowsocks的小白常见问题 总结篇</a>
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