Security35 min · Lesson 1 of 3

HTTP/S, SSL & TLS Internals

Securing the transport layer. Understanding handshakes, certificates, and encryption at rest vs. transit.

The Secure Transport

Security starts at the transport layer. HTTPS adds a layer of encryption (TLS) over HTTP, ensuring that data cannot be sniffed by man-in-the-middle attacks.

Certificates & CAs

We trust websites because of Certificate Authorities (CAs). A certificate proves that the server you are talking to is indeed who they claim to be, using asymmetric cryptography.