Humboldt-Universität zu Berlin - Mathematisch-Naturwissenschaftliche Fakultät - Institut für Informatik

Leonie Reichert

PhD Student at the chair of Technische Informatik.


  • Automated Contact Tracing
  • Differential Privacy
  • Synthetic Data

Topics for Master or Bachelor Thesis

I can supervise Master and Bachelor students together with either Prof. Scheuermann  for students from TU Darmstadt or Prof. Tschorsch for students from HU Berlin.




Thesis Proposal 1: Privacy preserving travel card design 

Travel cars such as the Japanese Suica card or the Oyster Card in London make paying for trips simple. The traveler only has to provide their (charged) travel card when getting on public transit and again when getting off. As cards are identifiable, much private data is stored at the transportation provider which can used them for various analysis. The goal of this thesis would be to design a privacy preserving system for travel cards which still allows the transport provider to do meaningful statistics.



Thesis proposal 2: Covid 19 detection of super spreader locations with location encryption

For infections diseases the health authority likes to quickly discover hot spots to quarantine infected people. With the current approach of e.g. the Corona Warn app information is distributed, therefore detection locations of hot spots is difficult. The idea of this thesis is to design a system for contact tracing, that makes sure that the health authority can decrypt location information if a certain number of people have become infected, e.g. using x-of-n encryption schemes.



Thesis proposal 3: Implementation of alternative algorithms for MAC address rotation for BLE

Implementing and comparing different algorithms for MAC address rotation of phones to minimize tracking in Bluetooth Low Energy.




Tool for checking Student Submission 

Over the last years the chair of Technische Informatik developed a tool for automatically checking student submissions handed in via Moodle. The tool is open source and available here:



Journal Articles by L. Reichert

L. Reichert, S. Brack, and B. Scheuermann
A Survey of Automatic Contact Tracing Approaches
ACM Transactions on Computing for Healthcare, 2(2), 2021

Conference Papers

S. Brack, L. Reichert, and B. Scheuermann
Decentralized Contact Tracing Using a DHT and Blind Signatures
2020 IEEE 45th Conference on Local Computer Networks (LCN), Sydney, Australia, IEEE, 2020
P. Schoppmann, A. Gascón, L. Reichert, and M. Raykova
Distributed Vector-OLE: Improved Constructions and Implementation
ACM Conference on Computer and Communications Security (CCS '19), ACM, 2019

Poster Papers

Workshop Presentations

L. Reichert, S. Brack, and B. Scheuermann
Lighthouses: A Warning System for Super-Spreader Events
2021 IEEE International Conference on Communications Workshops (ICC Workshops), IEEE, 2021
URL, RIS, BibTex
L. Reichert, S. Brack, and B. Scheuermann
Ovid: Message-based Automatic Contact Tracing
NDSS Workshop on Secure IT Technologies against COVID-19 (CoronaDef), 2021