Network Information Hiding, Chapter 7b: Countermeasures for Sophisticated Hiding Techniques

This is a video of a whole online class on network information hiding by Prof. Dr. Steffen Wendzel.

Slides, exercises and reading assignments:
https://github.com/cdpxe/Network-Covert-Channels-A-University-level-Course/blob/master/README.md

This session introduces countermeasures for sophisticated hiding techniques, namely the the Protocol Channel-aware Active Warden (PCAW) to combad protocol channels (and protocol hopping covert channels) as well as the Dynamic Warden to combat the NEL phase. Both countermeasures are of a limiting nature, i.e., they limit the available bitrate of the covert channels or extend the time it takes to transfer some piece of information.

Please note that fundamental countermeasures that are *not* specific for networks were already introduced in chapter 3 (https://www.youtube.com/watch?v=6cjsPzLscd8). Hiding patterns, including the inter-packet times pattern, were introduced in chapter 5 (https://www.youtube.com/watch?v=0ztPHur0LUY). Sophisticated Hiding Methods were introduced in Chapter 6 (https://www.youtube.com/watch?v=YicdOu10FmE) and Basic Network Level Countermeasures were introduced in Chapter 7a (https://www.youtube.com/watch?v=DW8eT5NtoxE).

List of my publications: https://wendzel.de/pub/

Me on ResearchGate: https://www.researchgate.net/profile/Steffen_Wendzel