[HTTP vs HTTPS] What Does a Secure Web Connection Actually Do?

Lets start by understanding what actually both of these HTTP/HTTS are?

’HTTP’ stands for Hypertext Transfer
Protocol. Basically, it allows for the communication between
different systems. It’s most commonly used to transfer data from a web server to a browser in
order to allow users to view web pages and it operates at port 80.

So it was the basic protocol followed in all web pages earlier. As HTTP was famous and widely used because of simplicity, but it wasn’t secured as we wanted ,since anyone intercepting data between web server and our pc and he could easily read all the data. SO HTTPS WAS BORN!

HTTPS = HTTP + Security(cryptographic protocols such as SSL and/or TLS)

HTTPS is highly advanced and secure version of HTTP. It uses the port no. 443 for Data Communication. It allows the secure transactions by encrypting the entire communication with SSL. It is a combination of SSL/TLS protocol and HTTP. It provides encrypted and secure identification of a network server.

In HTTPS protocol, SSL transactions are negotiated with the help of key-based encryption algorithm. This key is generally either 40 or 128 bits in strength.By introducing secure connection it maintain a user’s privacy and protect crucial data from being stolen.

HENCE while dealing with crucial data like e-payments sites like amazon ,etc shift to https if they were operating on http before through a redirection.