How does HTTPS work?

Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP.) HTTPS transmits encrypted data using Transport Layer Security (TLS.) If the data is hijacked online, all the hijacker gets is binary code.

HTTPS encrypts the transport of data so it’s not visible to hackers or others monitoring the connection. This ensures data integrity and prevents information from being modified, corrupted, or stolen during transmission.

The use of an SSL certificate is the key difference between HTTPS and HTTP.

Key Benefits of HTTPS:

• Confidentiality: Data in transit is encrypted, ensuring third parties can’t easily read intercepted data.
• Integrity: Ensures that the data exchanged hasn’t been tampered with during transit.
• Authentication: Helps confirm that you’re communicating with the intended website, preventing man-in-the-middle attacks.

How is the data encrypted and decrypted?

Step 1 — The client (browser) and the server establish a TCP connection.

Step 2 — The client sends a “client hello” to the server. The message contains a set of necessary encryption algorithms (cipher suites) and the latest TLS version it can support. The server responds with a…