Web browser or server tries to connect with the server of a website secured with an SSL/TLS Certificate and make a request to a web server for identifying themselves.Copy of a web server’s SSL/TLS Certificate is sent to the browser or server. Once the browser/server receives it verifies whether to trust the SSL/TLS Certificate and then sends a message to the web server.The web server sends back an acknowledgment in a digitally signed format for starting an SSL encrypted session. Now, the access is granted to share encrypted data between the web server and the browser/server.

Put simply, SSL is one of the security protocols used for establishing a secured connection between a web browser and the web server, which ensures users that all the data passed between a web browser and web server remains integral and private. In other words, SSL certificates are one of the small data files which are digitally bound cryptographic key with an organization’s details. Usually, it is used for securing sensitive transactions over the internet such as transactions made with a credit card or online banking, login credentials and more.

SSL/TLS Certificate works on RSA Asymmetric Encryption and Symmetric Encryption. Where Asymmetric Encryption helps to establish a secure client-server session and Symmetric Encryption for exchanging information securely over the already established secured session, also called as “SSL Handshake.”