TLS 或传输层安全^{(TLS or Transport Layer Security)}性是一种安全协议，其设计有两个目标——维护互联网上的隐私^(Privacy)和数据安全。^(Data)因此，电子邮件从计算机发送到服务器、加载网站的网络浏览器、VoIP、TLS可以对其进行加密。如果您知道SSL是什么，那么TLS就是它的演变。有趣的是，HTTPS是在^(HTTPS)HTTP协议之上实现的TLS 。

TLS 1.3 有什么新功能？

TLS 1.3旨在确保以纯文本形式提供的用户信息更少。它使用三个密码套件在早期版本的TLS中实现这一点。除非进行了重新协商，否则客户^(Client)端身份验证会暴露客户端身份。这在TLS 1.3^{(TLS 1.3)}中始终是机密的。应用程序和服务器^(Server)将不得不开始实施和遵守新的安全协议，但到目前为止，它还没有处于严格模式。如果浏览器支持它，但网站不支持，那么它将回退到下一个可用的TLS版本。

在 Windows 11/10 中启用或禁用 TLS 1.3

虽然Windows提供TLS，但它取决于应用程序是否要使用它或他们自己的棒。例如，Chrome不使用Windows TLS层。也就是说，要使 TLS^(TLS)工作，必须在客户端和服务器上都启用它。那些使用Windows服务器的用户，在IIS/HTTP.SYS中默认启用TLS 1.3。在Windows 10中，从Insider Preview build Build 20170开始。

• 在旧版 Microsoft Edge 上启用 TLS
• 在Microsoft Edge ( Chromium )中启用TLS
• 在 Chrome 浏览器中启用 TLS 1.3
• 在 Firefox 中启用 TLS 1. 3

启用设置后，应重新启动浏览器以使TLS 1.3生效。请注意，此功能仍在向所有浏览器推出，并且可能会晚一点出现在您的浏览器中。

1]在Microsoft Edge Legacy上^{(Microsoft Edge Legacy)}启用 TLS^{(Enable TLS)}

• ^(Type)在运行^(Run)提示符 ( Win + R键入inetcpl.cpl并按Enter键
• 它将打开Internet 属性^(Properties)窗口。切换到高级^(Advanced)部分
• 在安全部分下，选中TLS 1.3^{(TLS 1.3)}复选框
• 重启浏览器

2]在Microsoft Edge ( Chromium )中启用 TLS^{(Enable TLS)}

此版本的Edge是基于Chromium Engine构建的，它不使用Windows TLS堆栈。您必须使用edge://flags对话框独立配置它们。

• 在Edge的新选项卡中，输入 edge://flags
• 搜索TLS 1.3并启用设置

请记住^(Remember)，它仍处于试验阶段，因为它首先与Windows 10 Insider一起部署，然后它将处于更广泛的布局中。因此，如果您不想使用它，您可以使用其他使用TLS 1.3堆栈的浏览器。

3]  在Chrome 浏览器中^{(Chrome Browser)}启用 TLS 1.3^{(Enable TLS 1.3)}

由于Chrome和Edge都使用Chromium引擎，因此您可以使用^(Chromium)Chrome 标志^{(Chrome Flags.)}以相同的方式启用或更改设置。

• 在Edge的新选项卡中键入 chrome://flags ，然后按Enter键。
• 搜索TLS 1.3并启用设置

您会注意到Chrome默认启用了这些设置。所有浏览器最终都会发生类似的事情。

4] 在 Firefox 中启用 TLS 1. 3

• 启动 Firefox，然后输入about:config ，然后在新^{(about:config)}选项卡^(Tab)中按 enter 键。
• 它将打开带有搜索框的配置区域。^{(configuration area)}
• 找到安全。tls.version.max标志，然后双击编辑值
• 将值从 3 更改为 4。
• 重启火狐浏览器

我希望这篇文章很容易理解，如果你打算使用TLS，你可以在Windows和所有支持的浏览器中启用它。如果要禁用，请将值更改为三。

相关^(Related)：How to disable TLS 1.0 in Windows 11/10使用注册表在 Windows 11/10 中禁用 TLS 1.0。

如何检查TLS 1.3是否正确启用？

您可以使用Cloudflare 的^{( Cloudflare’s)}浏览体验安全检查^{(Experience Security Check)}来了解是否默认启用TLS 1.3 。

进入页面后，按Check My Browser按钮，它将显示诸如Secure DNS、DNSSEC、TLS 1.3和Encrypted SNI等详细信息。

How to enable or disable TLS 1.3 in Windows 11/10

TLS or Transport Layer Security is a security protocol that is designed with two goals in mind—maintaining Privacy and Data security on the internet. So an email sends from the computer to the server, web browser loading a website, VoIP, TLS can encrypt them. If you know what SSL is, then TLS is an evolution of it. Interesting to note that HTTPS is the implementation of TLS on the top of the HTTP protocol.

What is new with TLS 1.3?

TLS 1.3 is aimed to make sure less user information is available in plain text. It uses three cipher suites to achieve that in the earlier version of TLS. Client authentication exposed client identity unless renegotiation was made. This is always confidential in TLS 1.3. Applications and Server will have to start implementing and honoring the new security protocol, but as of now, it is not in a strict mode. If the browser supports it, but not the website, then it will fall back to the next available TLS version.

Enable or disable TLS 1.3 in Windows 11/10

While Windows offers TLS, it depends on the applications if it wants to use that or their own stick. For example, Chrome doesn’t use the Windows TLS layer. That said, for TLS to work, it has to be enabled both on the client and the server. Those using the Windows server, TLS 1.3 is enabled by default in IIS/HTTP.SYS. In Windows 10, starting with Insider Preview build Build 20170.

• Enable TLS on Microsoft Edge Legacy
• Enable TLS in Microsoft Edge (Chromium)
• Enable TLS 1.3  in Chrome Browser
• Enable TLS 1. 3 in Firefox

Once you enable the settings, you should restart the browser for TLS 1.3 to be effective. Be aware that this feature is still rolling out to all browsers, and may show up in your browser a little late.

1] Enable TLS on Microsoft Edge Legacy

• Type inetcpl.cpl in the Run prompt (Win + R) and press the Enter key
• It will open the Internet Properties window. Switch to the Advanced section
• Under the security section, check the box against TLS 1.3
• Restart the browser

2] Enable TLS in Microsoft Edge (Chromium)

This version of Edge is built on Chromium Engine, which does not use the Windows TLS stack. You will have to configure them independently using the edge://flags dialogue.

• In a new tab in Edge, type edge://flags
• Search for TLS 1.3 and enable the settings

Remember, it is still in an experimental stage as it is first deployed with Windows 10 Insider first, and then it will be in a broader layout.  So if you don’t want to use it, you can use other browsers that use their stack of TLS 1.3.

3] Enable TLS 1.3  in Chrome Browser

Since Chrome and Edge both use the Chromium engine, you can enable or change the setting the same way with Chrome Flags.

• Type chrome://flags in a new tab on Edge, and press the Enter key.
• Search for TLS 1.3, and enable the settings

You will notice that the settings are enabled by default for Chrome. Something similar will happen eventually for all browsers.

4] Enable TLS 1. 3 in Firefox

• Launch Firefox, and in type about:config followed by press the enter key in a new Tab.
• It will open the configuration area with a search box.
• Locate security.tls.version.max flag, and double click to edit the value
• Change the value from 3 to 4.
• Restart the Firefox browser

I hope the post was easy to follow, and if you plan to use TLS, you can enable it in Windows, and all supported browser. If you wish to disable, change the value to three.

Related: How to disable TLS 1.0 in Windows 11/10 using Registry.

How to check if TLS 1.3 is enabled correctly?

You can use the Cloudflare’s Browsing Experience Security Check to know if TLS 1.3 is enabled by default.

Once on the page, press Check My Browser button, and it will reveal details such as Secure DNS, DNSSEC, TLS 1.3, and Encrypted SNI.

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