Investigating TLS Using Wireshark: A Practical Packet Analysis
Investigating Transport Layer Security (TLS) Using Wireshark: A Practical Packet Analysis 1. Introduction Continue reading only if you are a beginner. If not skip to section 4. Transport Layer Security (TLS) is a cryptographic protocol designed to provide secure communication between clients and servers over a network. It is the successor to Secure Sockets Layer (SSL), which is now deprecated. TLS provides three fundamental security services: Authentication: Allows a client to verify the identity of the server through digital certificates. Confidentiality: Encrypts transmitted information to prevent unauthorized parties from reading it. Integrity: Protects data against unauthorized modification during transmission. TLS is widely used across the internet, particularly in HTTPS connections, where it secures communication between web browsers and web servers. However, simply identifying HTTPS traffic does not explain how a secure connection is established. To better understand the proc...