New slides online (Feb 12)


New Dates!!!
Written Network Security exam: July 22nd, 2020 at 9am in room 46-210
Mündliche Grundlagen der (Internet)Datensicherheit Prüfung: siehe Email vom 8.6.2020 (oder kontaktiere Matthias)


Wednesdays, 11:45-13:15 in room 01-006


Matthias Schäfer
Eric Jedermann
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Course Overview

This course covers aspects and principles of network security. Based on many attacks on common technologies used in communication systems, this course illustrates how things can go wrong and provides basic measures to protect a network from mistakes committed in the past. It covers furthermore the fundamental concepts of security and security problems.

Areas covered in this lecture:

  • Physical and Link Layer Security
  • Network Layer Security
  • Transport Layer Security
  • Application Layer Security

Please note that it is strongly recommended to attend communication systems first since it provides the background knowledge for this lecture.


The exercises will be split into three parts: a workshop and two network hack challenges. Successful participation in all three parts is a mandatory admission requirement for the final exam.

Please refer to the website of the physical- and link-layer workshop for the first exercise.

Please refer to the website of the first hack challenge for the second exercise.

The second hack challenge has started. You should have received all instructions via email.


The slides are accessible only from within the university network (131.246.*). Please use SSH or VPN for remote access.

Title Last Update
Organization 30.10.2019 PDF
Introduction 30.10.2019 PDF
Physical- & Link Layer 16.02.2019 PDF
Network Layer 06.01.2020 PDF
Application Layer 16.02.2020 PDF

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