Network Security and Cryptography Author: Bernard L. Menezes Primary Audience: Undergraduate Computer Science/IT Students, Networking Professionals Subject Area: Information Security, Cryptography, Network Defense

A central focus is the IP Security (IPSec) protocol and the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocols. The text dissects how these protocols operate at different layers of the network stack. IPSec, operating at the network layer, provides transparent security for all IP traffic, creating secure "tunnels" for data packets. Conversely, SSL/TLS operates at the transport layer, securing specific application sessions (such as web browsing).

What is Cryptography? Definition, Importance, Types - Fortinet