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Thanks cyberstalker for your detailed explanation. I have one more concern.<br />
<br />
In the web server and client interaction.. web server encrypt message with his private key which can only be decrypt using his public key and it is freely/openly available. So there is a chances that in man-in-the-middle attack hacker would capture the packet which web server sends to client and would able to decipher it using the public key of web server. So all the communication which web server sends to it's client is viewable by hacker.<br />
<br />
So here the security is compromised, isn't it?
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Thanks cyberstalker for your detailed explanation. I have one more concern.

In the web server and client interaction.. web server encrypt message with his private key which can only be decrypt using his public key and it is freely/openly available. So there is a chances that in man-in-the-middle attack hacker would capture the packet which web server sends to client and would able to decipher it using the public key of web server. So all the communication which web server sends to it's client is viewable by hacker.

So here the security is compromised, isn't it?

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As per my understanding.. Web server keeps the Private and Public key and distribute it's public key and all the clients who want to connect to it's web server.<br />
<br />
So Web server uses it's private key for encrypt and decrypt the message to client.. whereas client uses *only* the public key of web server for encrypt and decrypt the message to web server.<br />
<br />
I would like to know.. why client doesn't use it's own private key here? I believe in Public Key Infrastructure (PKI) both party needs to have their own private and public key pair to participate. Why the private key of client is missing here? Thanks!
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As per my understanding.. Web server keeps the Private and Public key and distribute it's public key and all the clients who want to connect to it's web server.

So Web server uses it's private key for encrypt and decrypt the message to client.. whereas client uses *only* the public key of web server for encrypt and decrypt the message to web server.

I would like to know.. why client doesn't use it's own private key here? I believe in Public Key Infrastructure (PKI) both party needs to have their own private and public key pair to participate. Why the private key of client is missing here? Thanks!

How HTTPS works?

HTTPS is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security (TLS) or its predecessor, Secure Sockets Layer (SSL). The main motivation for HTTPS is authentication of the visited website and to protect the privacy and integrity of the exchanged data. HTTPS is widely used for protecting page authenticity on all types of websites, securing accounts and keeping user communications, identity and web browsing private.