One of the biggest hurdles to web security used to be cost. However, the "Securing the Web Free" movement, led by initiatives like , has changed the game. Let’s Encrypt is a free, automated, and open Certificate Authority that allows anyone to secure their website at no cost. Most modern web hosts now offer "one-click" free SSL/TLS setup through these services. Conclusion
Once the browser trusts the certificate, they work together to create a "session key." This is a unique, temporary key used to encrypt all data for that specific visit. 4. The Move to "HTTPS Everywhere"
The server sends its SSL/TLS certificate to the browser. This certificate contains the server’s public key and is signed by a trusted Certificate Authority (CA).
At their core, SSL and TLS are cryptographic protocols designed to provide communications security over a computer network.
The browser and server exchange "Hello" messages to agree on which version of TLS they will use and which encryption algorithms (cipher suites) to employ.