Thesis in Progress

14 Entries found


Disruption-Tolerant Networks (DTNs) can be used as a communication means in the emergency context when communication infrastructure is unavailable. In DTNs, mobile user devices such as smartphones act as “data mules”: they store, carry and forward messages. Unfortunately, the “storing” part is especially vulnerable to denial-of-service (DoS) attacks since an attacker can flood the network with bogus information and, thus, replace or purge valid messages from a node’s buffer.

In this thesis, you will implement and evaluate a novel, DoS-resistant buffer management scheme in IBR-DTN [1], DTN implementation written in C++, which also runs on standard Android smartphones.

[1] IBR-DTN.

After reverse engineering the firmware of BCM4339 WiFi chips, we now intend to continue with the Bluetooth tranceiver that is included in the chip. In this thesis, you will extract the Bluetooth firmware, analyze how it interacts with the WiFi core and how we can use it to perform attacks or extend the capabilites of Bluetooth in a smartphone.

Here are some references, of our previous work:

[1] M. Schulz, D. Wegemer, M. Hollick. DEMO: Using NexMon, the C-based WiFi firmware modification framework, Proceedings of the 9th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec 2016, July 2016. [pdf]

[2] M. Schulz, D. Wegemer and M. Hollick. NexMon: A Cookbook for Firmware Modifications on Smartphones to Enable Monitor Mode, CoRR, vol. abs/1601.07077, December 2015. [bibtex]

Prof. Dr.-Ing. Matthias Hollick

Technische Universität Darmstadt
Department of Computer Science
Secure Mobile Networking Lab 

Mornewegstr. 32 (S4/14)
64293 Darmstadt, Germany

Phone: +49 6151 16-25472
Fax: +49 6151 16-25471

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