The empirical determination of system properties, for example by testing software, is very limited in its informative value. Trustworthiness must already be considered in the system specification and in the system design process. This requires new methods that can be used to incorporate the desired level of trustworthiness into the system specification. These methods must be implementable using procedures that can be automated and executed by machines.
The work on these methods aims to design systems that are trustworthy from the outset ("by design") in the long term. To achieve this, BI relies on formal methods, which involve rigorous mathematical considerations and proofs, rather than empirical procedures such as measurements or tests.
As a general principle, the BI pursues a holistic approach that spans multiple phases of the lifecycle of these systems - from standardization, design and implementation through to deployment and runtime.
As a general principle, BI pursues a holistic approach that covers several phases of the life cycle of these systems - from standardization, design and implementation to deployment and runtime. Our current focus is on methods for the design and implementation of trustworthy systems. Specifically, these are methods for the formal and automatable specification of systems, programming languages and compilers that implement these specifications, and methods for the formal verification of the results generated by the compiler. These topics are dealt with by the groups Trustworthy Data Processing and Verified System Design Automation.
@conference{
slotted_egraphs_2025,
title = "Slotted E-Graphs: First-Class Support for (Bound) Variables in E-Graphs",
author = "Rudi Schneider, Marcus Rossel, Kœhler Thomas, Andrés Goens, Michel Steuwer",
year = "2025",
booktitle = "PLDI",
pages = "23"
}
@mastersthesis{
max_kurze_msc_thesis,
title = "A Framework for Modular and Compositional Reasoning in Kôika",
author = "Max Kurze",
year = "2025",
school = "Technische Universität Dresden",
month = "March",
url = "https://zenodo.org/records/15073479"
}
@mastersthesis{
garvit_chabra_msc_thesis,
title = "A formally-verified Network-on-Chip in Coq",
author = "Garvit Chhabra",
year = "2025",
school = "Technische Universität Dresden",
month = "January",
url = "https://zenodo.org/records/15004685"
}
@inproceedings{
ZoDK_25,
title = "Privacy Modeling and Enhancement Methodology for JCAS-Enabled Railway Applications",
author = "Yevhen Zolotavkin, Prajnamaya Dass, Stefan Köpsell",
year = "2025",
booktitle = "39th International Conference on Advanced Information Networking and Applications (AINA)"
}
@inproceedings{
ZoDa_25,
title = "Privacy Analysis and Enhancement for Joint Communication and Sensing Applications",
author = "Yevhen Zolotavkin, Prajnamaya Dass, Stefan Köpsell",
year = "2025",
booktitle = "21st International Wireless Communications & Mobile Computing Conference (IWCMC)"
}
@conference{
priv_pfl_2025,
title = "Priv-PFL: A Privacy-Preserving and Efficient Personalized Federated Learning Approach",
author = "Alireza Aghabagherloo, Roozbeh Sarenche, Maryam Zarezadeh, Bart Preneel, Stefan Köpsell",
year = "2025",
booktitle = "IEEE Symposium on Security and Privacy, The Deep Learning Security and Privacy Workshop (DLSP 2025)"
}
@article{
micro_trust_2025,
title = "µ-Trust: Trustworthy and Transparent Service Composition for Microservice-Based IoT Systems",
author = "Prajnamaya Dass",
year = "2025",
journal = "IEEE Systems Journal"
}
@article{
PaDa_24,
title = "RF Hardware Reconfigurability for Privacy-Preserving Integrated Sensing and Communication",
author = "Padmanava Sen, Prajnamaya Dass, Stefan Köpsell, Gerhard Fettweis",
year = "2025",
journal = "5th IEEE International Symposium on Joint Communications & Sensing (JC&S)"
}
@article{
ZOLOTAVKIN2025110972,
title = "Optimal obfuscation of awareness messages: Improving users’ unlinkability in Intelligent Transport Systems",
author = "Yevhen Zolotavkin, Yurii Baryshev, Jannik Mähn, Vitalii Lukichov, Stefan Köpsell",
year = "2025",
journal = "Computer Networks",
volume = "257",
note = "https://doi.org/10.1016/j.comnet.2024.110972"
}
@article{
Keil_24,
title = "Gaining Back the Control Over Identity Attributes: Access Management Systems Based on Self-Sovereign Identity",
author = "Kenneth-Raphael Keil, Ricardo Bochnia, Ivan Gudymenko, Stefan Köpsell, Jürgen Anke",
year = "2024",
journal = "Open Identity Summit 2024",
author_text = "Ricardo Bochnia, Ivan Gudymenko, Stefan Köpsell, Jürgen Anke"
}
@article{
DaGK_24,
title = "Navigating Privacy Challenges in Mission Critical Communication: Insights for 6G Networks",
author = "Prajnamaya Dass, Marcel Daniel Sven Kevin Gräfenstein, Stefan Köpsell",
year = "2024",
journal = "29th IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)"
}
@article{
DaUN_24,
title = "Addressing Privacy Concerns in Joint Communication and Sensing for 6G Networks: Challenges and Prospects",
author = "Prajnamaya Dass, Sonika Ujjwal, Jiri Novotny, Yevhen Zolotavkin, Zakaria Laaroussi, Stefan Köpsell",
year = "2024",
journal = "12th Annual Privacy Forum (APF)",
author_text = "Sonika Ujjwal, Jiri Novotny, Yevhen Zolotavkin, Zakaria Laaroussi, Stefan Köpsell"
}
@inproceedings{
ertelCOQ2024,
title = "On the Potential of Coq as the Platform of Choice for Hardware Design",
author = "Sebastian Ertel, Max Kurze, Michael Raitza",
year = "2024",
booktitle = "Coq Workshop",
url = "https://coq-workshop.gitlab.io/2024/files/EA4.pdf"
}
@article{
umar_tcpmt,
title = "A Low-Cost 60 GHz Modular Front-end Design for Channel Sounding",
author = "Muhammad Umar, Martin Laabs, Niels Neumann, and Dirk Plettemeier",
year = "2024",
journal = "IEEE Transactions on Components, Packaging and Manufacturing Technology",
volume = "11",
author_text = "Martin Laabs, Niels Neumann, and Dirk Plettemeier",
doi = "10.1109/TCPMT.2024.3353332"
}
@inproceedings{
RoPa_2024,
title = "Enabling Mobility-Oriented JCAS in 6G Networks: An Architecture Proposal",
author = "Philipp Rosemann, Sanket Partani, Marc Miranda, Jannik Mähn, Michael Karrenbauer, William Meli, Rodrigo Hernangomez, Maximilian Lübke, Jacob Kochems, Stefan Köpsell, Anosch Aziz-Koch, Julia Beuster, Oliver Blume, Norman Franchi, Reiner Thomä, Slawomir Stanczak, Hans D. Schotten",
year = "2024",
booktitle = "4th IEEE International Symposium on Joint Communications & Sensing (JC&S 2024)",
author_text = "Marc Miranda, Jannik Mähn, Michael Karrenbauer, William Meli, Rodrigo Hernangomez, Maximilian Lübke, Jacob Kochems, Stefan Köpsell, Anosch Aziz-Koch, Julia Beuster, Oliver Blume, Norman Franchi, Reiner Thomä, Slawomir Stanczak, Hans D. Schotten"
}
@inproceedings{
BaBoK_2024,
title = "Machine Learning-Based Vector Quantization for Secret Key Generation in Physical Layer Security",
author = "Ghazal Bagheri, Ali Khandan Boroujeni, Stefan Köpsell",
year = "2024",
booktitle = "Global Information Infrastructure and Networking Symposium (GIIS'24)"
}
@inproceedings{
BoBaK_2024,
title = "Enhancing Frequency Hopping Security in ISAC Systems: A Physical Layer Security Approach",
author = "Ali Khandan Boroujeni, Ghazal Bagheri, Stefan Köpsell",
year = "2024",
booktitle = "4th IEEE International Symposium on Joint Communications & Sensing (JC&S 2024)"
}
@article{
JeZoD_2023,
title = "Examining the Current Status and Emerging Trends in Continuous Authentication Technologies through Citation Network Analysis",
author = "Jongkil Jeong, Yevhen Zolotavkin, Robin Doss",
year = "2023",
journal = "ACM Computing Surveys",
booktitle = "ACM Computing Surveys",
month = "January",
number = "1",
volume = "55"
}
@inproceedings{
ZoBa_2024,
title = "Improving Unlinkability in C-ITS: A Methodology For Optimal Obfuscation",
author = "Yevhen Zolotavkin, Yurii Baryshev, Vitalii Lukichov, Jannik Mähn, Stefan Köpsell",
year = "2023",
booktitle = "9th International Conference on Information Systems Security and Privacy (ICISSP'23)"
}
@article{
AC_Comm-Magazine2022,
title = "Challenge-Response Physical Layer Authentication Over Partially Controllable Channels",
author = "Stefano Tomasin, Hongliang Zhang, Arsenia Chorti, Vincent Poor",
year = "2022",
journal = "IEEE Communications Magazine"
}
@conference{
Mitev_Globecom2022,
title = "Filterbank Secret Key Generation Rates in Multipath Channels",
author = "Miroslav Mitev, André Barreto, Minh Thuy Pham, Maximilian Matthé, Gerhard Fettweis",
year = "2022",
booktitle = "IEEE Global Communications Conference (Globecom) 2022",
publisher = "IEEE"
}
@article{
Mitev_Access_2022,
title = "A Physical Layer, Zero-round-trip-time, Multi-factor Authentication Protocol",
author = "Miroslav Mitev, Arsenia Chorti, Mahdi Shakiba-Herfeh, Martin Reed, Sajjad Baghaee",
year = "2022",
journal = "IEEE Access"
}
@inproceedings{
Mitev_2022_VTCS,
title = "Secret Key Generation Rates over Frequency Selective Channels",
author = "Miroslav Mitev, André Barreto, Minh Thuy Pham, Gerhard Fettweis",
year = "2022",
booktitle = "IEEE Vehicular Technology Conference (VTC-Spring)",
address = "Helsinki, Finland",
month = "June"
}
@article{
chorti2022_commstd,
title = "Context-Aware Security for 6G Wireless: The Role of Physical Layer Security",
author = "Arsenia Chorti, André Barreto, Stefan Köpsell, Marco Zoli, Marwa Chafii, Philippe Sehier, Gerhard Fettweis, Vincent Poor",
year = "2022",
journal = "IEEE Communications Standards Magazine"
}
@conference{
Pham2022_ICC,
title = "Secure Communications in Line-of-Sight Scenarios by Rotation-based Secret Key Generation",
author = "Minh Thuy Pham, André Barreto, Miroslav Mitev, Maximilian Matthé, Gerhard Fettweis",
year = "2022",
booktitle = "IEEE International Conference on Communications (ICC)",
address = "Seoul, South Korea",
month = "MAy"
}
@inproceedings{
delPrete_2022_EUCAP,
title = "A Study on Physical Layer Security Through Ray Tracing Simulations",
author = "Simone del Prete, Franco Fuschini, Marina Barbirolli, Marco Zoli, André Barreto",
year = "2022",
booktitle = "European Conference on Antennas and Propagation (EUCAP)",
address = "Madrid, Spain",
month = "March"
}
@inproceedings{
Lack_2021,
title = "Secure and Efficient Tunneling of MACsec for Modern Industrial Use Case",
author = "Tim Lackorzynski, Hermann Härtig, Stefan Köpsell",
year = "2021",
booktitle = "Annual Computer Security Applications Conference (ACSAC), Industrial Control System Security Workshop (ICSS)"
}
@article{
Santorsola20210,
title = "Effect of Radio Channel and Antennas on Physical-Layer-Security Key Exchange",
author = "Alessandro Santorsola, Marco Zoli, André Barreto, Vincenzo Petruzzelli, Giovanna Calò",
year = "2021",
journal = "IEEE Access",
url = "https://ieeexplore.ieee.org/document/9628090",
doi = "10.1109/ACCESS.2021.3131616"
}
@article{
Mitev_2021_Entropy,
title = "Protecting physical layer secret key generation from active attacks",
author = "Miroslav Mitev, Arsenia Chorti, Elena Belmega, Vincent Poor",
year = "2021",
journal = "MDPI Entropy"
}
@inproceedings{
Zoli_2021_ISWCS,
title = "Estimation of the Secret Key Rate in Wideband Wireless Physical-Layer-Security",
author = "Marco Zoli, Miroslav Mitev, André Barreto, Gerhard Fettweis",
year = "2021",
booktitle = "International Symposium on Wireless Communication Systems (ISWCS)"
}
@conference{
Zoli_2021_vtcs,
title = "Investigating the eavesdropper attack in physical layer security wireless key generation: a simulation case study",
author = "Marco Zoli, André Barreto, Gerhard Fettweis",
year = "2021",
booktitle = "IEEE Vehicular Technology Conference (VTC-Spring)",
address = "Helsinki, Finland",
number = "April"
}
@inproceedings{
EsKS_2021,
title = "How well can your car be tracked: Analysis of the European C-ITS pseudonym scheme",
author = "Stephan Escher, Markus Sontowski, Stefan Köpsell",
year = "2021",
booktitle = "Proceedings VTC2021-Spring"
}
@conference{
Dwivedi_2020_6gsummit,
title = "Secure Joint Communications and Sensing using Chirp Modulation",
author = "Saumya Dwivedi, Marco Zoli, André Barreto, Padmanava Sen, Gerhard Fettweis",
year = "2020",
booktitle = "6G Wireless Summit (6G SUMMIT)",
address = "Levi, Finland",
month = "March",
url = "https://doi.org/10.1109/6GSUMMIT49458.2020.9083884",
doi = "10.1109/6GSUMMIT49458.2020.9083884"
}
@inproceedings{
LaGH_2020,
title = "Enabling and Optimizing MACsec for Industrial Environments",
author = "Tim Lackorzynski, Gregor Garten, Jan Sönke Huster, Stefan Köpsell, Hermann Härtig",
year = "2020",
booktitle = "Proc. 16th IEEE International Conference on Factory Communication Systems (WFCS)",
publisher = "IEEE",
pages = "1--4",
doi = "10.1109/WFCS47810.2020.9114434",
url = "https://doi.org/10.1109/WFCS47810.2020.9114434"
}
@article{
Zoli_2020_JWCN,
title = "Physical-Layer-Security Box: a concept for time-frequency channel-reciprocity key generation",
author = "Marco Zoli, André Barreto, Stefan Köpsell, Padmanava Sen, Gerhard Fettweis",
year = "2020",
journal = "EURASIP Journal on Wireless Communications and Networking",
month = "June",
number = "114",
pages = "24",
url = "https://doi.org/10.1186/s13638-020-01712-6",
doi = "10.1186/s13638-020-01712-6"
}