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SSL

Secure sockets layer (SSL) is a cryptographic protocol designed to secure network communications at the application layer. Netscape developed the original protocol in 1995 and SSL became deprecated and was replaced by transport layer security (TLS) in 2015. For more information about SSL, visit this website.

The most common place to see TLS/SSL in action is in your web browser. For example, most all web sites now default from http (port 80) to https (port 443) with TLS. It is a client-server model where the client initiates the request to connect and the server offers the secure protocol.

安全套接字層（SSL）是一種加密協議，旨在保護應用程序層的網絡通信安全。Netscape在1995年開發了原始協議，並且不贊成使用SSL，並在2015年由傳輸層安全性（TLS）取代。有關SSL的更多信息，請訪問此網站。

實際使用TLS / SSL的最常見地方是您的Web瀏覽器。例如，大多數網站現在默認使用TLS從http（端口80）更改為https（端口443）。這是一種客戶端-服務器模型，其中客戶端發起連接請求，服務器提供安全協議。

EXAMPLE

Try this:

Type: http://facebook.com or http://google.com into the browser of your choice. Notice the new URL changed to https.

Next, click on the padlock → connection. If you have an antivirus plug-in you might see the company’s certificate instead in browsers such as Internet Explorer.

試試這個：

在您選擇的瀏覽器中輸入：http://facebook.com或http://google.com。請注意，新的URL更改為https。

接下來，單擊掛鎖→連接。如果您具有防病毒插件，則可能會在Internet Explorer之類的瀏覽器中看到該公司的證書。

Image used under CC-BY license from Russell Burchill.

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