What is SSL How does it work?

In this blog, we will complete a guide on what is SSL and how does it work? In the present day everywhere online security is one of the most SSL is growing as a key factor in protecting private data passed on over the internet. Whenever you continue browsing on your Favourite E-commerce website and using an online banking account and some of the most personal information on a form, SSL is a must for keeping your data private and secure.

Understanding of SSL

SSL is a full of ( Secure Socket Layer ) it’s a secure data protocol and it’s designed for a secure connection between a web server and a web browser. It keeps secret communication, which makes sure the data exchanged between the two parties is kept secret and relevant.

How Does SSL Work?

1. Handshake Protocol :-

The SSL handshake is the first step of creating a secure connection between the client (web browser) and the server. It involves the following steps:-

a. Client Hello :-

The Process starts when the client sends “ Hello” messages to the server after that showing client wants to make a secure connection and define the SSL/TLS versions, secret suites of tools, and other parameters.

b. Server Hello :-

Come In Response from Client side “Hello” Message After that Server sends a “Hello” message to the client. After accepting the client's request and deciding on the correct SSL/TLS version and code suite for the connection.

c. Certificated Exchange :-

The Certificates Exchange processing starts after completing Between secure connection between the client and server. Then Server shows the client SSL Certificates with some of the most protection features like a public key, digital signature, and other identifying information. The client verifies the certificate's authenticity and validity and makes sure that it has been issued by an authorized Certificate Authority (CA).

d. Key Exchange :-

One of the most important steps in the SSL Hand Shake Protocol is Key Exchange. The Key Exchange Works between The Client and the Server then Key Exchange and generates a new shared secret key that is used to encrypt and decrypt data during the session.

e. Generate Session keys :-

Once the shared secret key has been established, both parties use it to generate session keys for sending and receiving information provided during the SSL session.

2. Security and Data Transfer :-

After completing the SSL handshake and connecting to a secure connection, data transfer between the client and server will start. During this step, all data sent over the connection is protected with symmetric encryption techniques such as AES (Advanced Encryption Standard) or 3DES. This encryption ensures that even if intercepted, the data is unreadable to unauthorized parties.

3. Data security and authentication :-

In Addition to the use of data security and authentication, SSL involves how it works to protect the security of data and authenticate the identities of the communicating parties:-

a. Data security :-

Data Security features work on information or transmitted data SSL and uses hash secure functions like SHA-256 (Secure Hash Algorithm 256-bit) to generate a process of information or checks of transmitted data. These processes are placed next to the data and used to verify its accuracy upon receiving. If any changes are temporary during a mismatch between the received breakdown and the adjusted breakdown, suggesting potential tampering.

b. Authentication :-

SSL authentication is the most important role of verifying web server identities. When a server offers its SSL certificate during the handshake. The server-client confirms its authenticity by searching the digital signature and the chain of trust that leads back to a trusted root CA.

4. Termination and Session Closing :-

Once the SSL session has finished or dismissed, the client-server connection is easily closed. The exchange of "Close Notify" messages shows that you want to end the session. While both parties get these messages, they stop sending data and release any resources allocated to the SSL session.

Conclusion :-

In this conclusion, we are a complete guide. What is SSL and How Does it Work?SSL is the most important factor between Websites and Browsers to exchange data securely. After that SSL creates secure connections via some steps in the handshake protocol, thus safeguarding data exchanged between parties. Key exchange and session key generation are both essential steps in this process to keep data secure. Furthermore, SSL Uses some Systematic processes for data security and data protection transmission that improve SSL Security. In complete steps, SSL guarantees the security of data through hashing functions and authorizes server identities.