SSL Certificates ensure secure communication and provides identification information about the web server thereby establishing the encrypted connection that happens in a fraction of second. Want to understand how you know if a website is using SSL/TLS or not? As most browsers mark secure connection with a green padlock or the secure message(usually in Chrome).
Want to know what actually happens between the Web browser and the server, keep continuing reading....
Firstly, your browser attempts to connect to the website secured with an SSL Certificate. The browser then requests and the web server identifies itself.
The web server sends the browser a copy of its SSL Certificate.
The browser then inspects whether it trusts the SSL or not. If yes, then it sends a message to the web server.
The server sends back a digitally signed acknowledgement to start an SSL encrypted session.
Finally, the encrypted data is shared between the browser and the server.
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