Dr. rer. nat. Jan Pennekamp

Postdoctoral Researcher

	Ahornstraße 55, building E3 52074 Aachen Germany
	9032
	+49 241 80-21411
	jan.pennekamp@comsys.rwth-aachen.de

Short CV

Research My fields of research cover the Industrial Internet of Things (IIoT), Information Systems, and Privacy Enhancing Technologies (PETs). In these areas, I am primarily interested in security & privacy implications as well as the application and the design of secure computation, covering both privacy-preserving and privacy-enhancing technologies. Additionally, I am interested in all kinds of research methodology (in computer science). Recently, I moved into healthcare-related research. As part of this direction, I am studying the implications and utility of synthetic data.

Background I am a postdoctoral researcher at the Chair of Communication and Distributed Systems, where I also pursued my Ph.D. studies in part time from 2018 to 2023; researching security and privacy in the Industrial Internet of Things (IIoT). I am a member of the Security and Privacy research group. In 2011, I began my studies in Computer Science at RWTH Aachen University, received my B.Sc. degree in 2014, and graduated with M.Sc. degree in 2018. In 2014, I studied abroad at Aalto University for one academic year. Besides, in 2015, I interned at the SECAN-Lab at the University of Luxembourg for six month where I worked on website fingerprinting in anonymization networks. The corresponding artifacts were selected as a finalist for the Artifacts Competition and Impact Award at ACSAC 2022.

Awards I am a Klaus Tschira Boost Fund Fellow 2025 (selection ratio below 5%). Moreover, I am attendee of the 12th Heidelberg Laureate Forum in 2025. In 2022, my team and I received the “Young Researcher Award 2022” of the Cluster of Excellence “Internet of Production” for our interdisciplinary research. In 2021, the profile area of information and communication technology awarded me with the “ICT Young Researcher Award”. Besides, I received stipends to attend RWC 2020 and ACSAC 2022. Furthermore, I was awarded the 1st prize of TDWI Award 2018 for the best master thesis in the area of analytics, big data, and business intelligence. In 2018, I received a Google Scholarship for my Ph.D. studies due to my academic achievements and my persistent demonstration of leadership. During my studies, as part of a Research Focus Class, our team’s submission to the 2016 iDASH Genome Privacy & Security Competition was ranked runner-up and awarded with the HLI and Genecloud Award.

Talks Please have a look at my personal website for an up-to-date overview of past presentations.

Teaching For a list of advised theses, see the list below. You may send me a message if you are interested in writing a thesis with me. Please contact me on a first-name basis. I’m Jan :-). For a list of (other) teaching activities I was involved in, please take a look at my personal website.

Projects

I am primarily researching in the Cluster of Excellence “Internet of Production”, where I am also serving as the deputy workstream coordinator for CRD-A Workstream I (since April 2019). Moreover, I am currently holding (lead) positions in the following projects: CALCIPROTECT, RFC, RUST, SUSTAINET_guarDian, and SYNCLIVER. In the past, I further participated in the following projects: COAT (2023-2024). As a student assistant (2016-2018), I was involved in the TRINICS project to increase the consumer awareness of cloud services.

Professional Service

Publications

Ina Berenice Fink, Ike Kunze, Pascal Hein, Jan Pennekamp, Benjamin Standaert, Klaus Wehrle, Jan Rüth. Advancing Network Monitoring with Packet-Level Records and Selective Flow Aggregation. Proceedings of the 2025 IEEE/IFIP Network Operations and Management Symposium (NOMS ‘25), May 12 - May 16, 2025, Honolulu, HI, USA. May 2025.

Jan Pennekamp, Paul Weiler, Matthias Bodenbenner, Maximilian Sudmann, István Koren, Ike Kunze, Marcel Fey, Dominik Wolfschläger, Christian Brecher, Robert H. Schmitt, Klaus Wehrle. ConfMod: A Simple Modeling of Confidentiality Requirements for Inter-Organizational Data Sharing. Proceedings of the 6th Workshop on Management for Industry 5.0 (MFI5.0 ‘25), May 12 - May 12, 2025, Honolulu, HI, USA. Event co-located with the 2025 IEEE/IFIP Network Operations and Management Symposium (NOMS '25). May 2025.

Ike Kunze, Constantin Sander, Mike Kosek, Lars Tissen, Jan Pennekamp, Klaus Wehrle. Congestion-Responsive Queuing for Internet Flows. Proceedings of the 2025 IEEE/IFIP Network Operations and Management Symposium (NOMS ‘25), May 12 - May 16, 2025, Honolulu, HI, USA. May 2025.

Benedikt von Querfurth, Johannes Lohmöller, Jan Pennekamp, Tore Bleckwehl, Rafael Kramann, Klaus Wehrle, Sikander Hayat. Transformer-Based Integrative Patient Representations from Single-Cell RNA Data. Learning Meaningful Representations of Life Workshop (LMRL ‘25), Apr 28 - Apr 28, 2025, Singapore, Singapore. Event co-located with the 13th International Conference on Learning Representations (ICLR '25). April 2025.

Jan Pennekamp, Joseph Leisten, Paul Weiler, Markus Dahlmanns, Marcel Fey, Chrstian Brecher, Sandra Geisler, Klaus Wehrle. MapXchange: Designing a Confidentiality-Preserving Platform for Exchanging Technology Parameter Maps. Proceedings of the 40th ACM/SIGAPP Symposium on Applied Computing (SAC ‘25), Mar 31 - Apr 4, 2025, Catania, Italy. April 2025.

Jan Pennekamp, Christian Fimmers. Sichere industrielle Zusammenarbeit – Ein Paradigmenwechsel. Factory Innovation, vol. 2025, no. 2. March 2025.

Stefanie Berninger, Soo-Yon Kim, Joana Piel, Martin Perau, Sandra Geisler, Frank Piller, Klaus Wehrle, Jan Pennekamp. Privacy-Aware Supply Chain Ratings: Interdisciplinary Research On Collaborative Supply Chain Management. Proceedings of the 7th Conference on Production Systems and Logistics (CPSL ‘25), Mar 18 - Mar 21, 2025, Lima, Peru. March 2025.

Christian van Sloun, Vincent Woeste, Konrad Wolsing, Jan Pennekamp, Klaus Wehrle. Detecting Ransomware Despite I/O Overhead: A Practical Multi-Staged Approach. Proceedings of the 22nd Annual Network and Distributed System Security Symposium (NDSS ‘25), Feb 24 - Feb 28, 2025, San Diego, CA, USA. February 2025.

Johannes Lohmöller, Roman Matzutt, Joscha Loos, Eduard Vlad, Jan Pennekamp, Klaus Wehrle. Complementing Organizational Security in Data Ecosystems with Technical Guarantees. Proceedings of the 1st Conference on Building a Secure and Empowered Cyberspace (BuildSEC ‘24), Dec 19 - Dec 20, 2024, New Delhi, India. December 2024.

Sascha Welten, Karl Kindermann, Ahmet Polat, Martin Görz, Maximilian Jugl, Laurenz Neumann, Alexander Neumann, Johannes Lohmöller, Jan Pennekamp, Stefan Decker. PASTA-4-PHT: A Pipeline for Automated Security and Technical Audits for the Personal Health Train. arXiv. December 2024.

Johannes Lohmöller, Jannis Scheiber, Rafael Kramann, Klaus Wehrle, Sikander Hayat, Jan Pennekamp. scE(match): Privacy-Preserving Cluster Matching of Single-Cell Data. Proceedings of the 23rd IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom ‘24), Dec 17 - Dec 21, 2024, Sanya, China. December 2024.

Markus Dahlmanns, Jan Pennekamp, Robin Decker, Klaus Wehrle. LUA-IoT: Let's Usably Authenticate the IoT. Proceedings of the 27th Annual International Conference on Information Security and Cryptology (ICISC ‘24), vol. 15596, Nov 20 - Nov 22, 2024, Seoul, Korea. November 2024.

Benedikt von Querfurth, Johannes Lohmöller, Jan Pennekamp, Tore Bleckwehl, Rafael Kramann, Klaus Wehrle, Sikander Hayat. mcBERT: Patient-Level Single-cell Transcriptomics Data Representation. bioRxiv. November 2024.

Johannes Lohmöller, Jan Pennekamp, Klaus Wehrle. Toward Technically Enforceable Consent in Healthcare Research. Research Papers of the Platform Privacy, vol. 4, Oct 17 - Oct 18, 2024, Berlin, Germany. October 2024.

Jan Pennekamp. Evolving the Industrial Internet of Things: The Advent of Secure Collaborations. Proceedings of the 2024 IEEE/IFIP Network Operations and Management Symposium (NOMS ‘24), May 6 - May 10, 2024, Seoul, Korea. May 2024.

Johannes Lohmöller, Jan Pennekamp, Roman Matzutt, Carolin Victoria Schneider, Eduard Vlad, Christian Trautwein, Klaus Wehrle. The Unresolved Need for Dependable Guarantees on Security, Sovereignty, and Trust in Data Ecosystems. Data & Knowledge Engineering, vol. 151. May 2024.

Markus Dahlmanns, Felix Heidenreich, Johannes Lohmöller, Jan Pennekamp, Klaus Wehrle, Martin Henze. Unconsidered Installations: Discovering IoT Deployments in the IPv6 Internet. Proceedings of the 2024 IEEE/IFIP Network Operations and Management Symposium (NOMS ‘24), May 6 - May 10, 2024, Seoul, Korea. May 2024.

Jan Pennekamp. Secure Collaborations for the Industrial Internet of Things. Ph.D. Thesis. April 2024.

Jan Pennekamp, Lennart Bader, Eric Wagner, Jens Hiller, Roman Matzutt, Klaus Wehrle. Blockchain Technology Accelerating Industry 4.0. Blockchains – A Handbook on Fundamentals, vol. 105. March 2024.

Jan Pennekamp, Roman Matzutt, Christopher Klinkmüller, Lennart Bader, Martin Serror, Eric Wagner, Sidra Malik, Maria Spiß, Jessica Rahn, Tan Gürpinar, Eduard Vlad, Sander J. J. Leemans, Salil S. Kanhere, Volker Stich, Klaus Wehrle. An Interdisciplinary Survey on Information Flows in Supply Chains. ACM Computing Surveys, vol. 56, no. 2. February 2024.

Jan Pennekamp, Fritz Alder, Lennart Bader, Gianluca Scopelliti, Klaus Wehrle, Jan Tobias Mühlberg. Securing Sensing in Supply Chains: Opportunities, Building Blocks, and Designs. IEEE Access, vol. 12. January 2024.

Jan Pennekamp, Markus Dahlmanns, Frederik Fuhrmann, Timo Heutmann, Alexander Kreppein, Dennis Grunert, Christoph Lange, Robert H. Schmitt, Klaus Wehrle. Offering Two-Way Privacy for Evolved Purchase Inquiries. ACM Transactions on Internet Technology, vol. 23, no. 4. November 2023.

Roman Matzutt, Jan Pennekamp, Klaus Wehrle. Poster: Accountable Processing of Reported Street Problems. Proceedings of the 2023 ACM SIGSAC Conference on Computer and Communications Security (CCS ’23), Nov 26 - Nov 30, 2023, Copenhagen, Denmark. November 2023.

Lennart Bader, Jan Pennekamp, Emildeon Thevaraj, Maria Spiß, Salil S. Kanhere, Klaus Wehrle. Reputation Systems for Supply Chains: The Challenge of Achieving Privacy Preservation. Proceedings of the 20th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous ‘23), Nov 14 - Nov 17, 2023, Melbourne, VIC, Australia. November 2023.

Olav Lamberts, Konrad Wolsing, Eric Wagner, Jan Pennekamp, Jan Bauer, Klaus Wehrle, Martin Henze. SoK: Evaluations in Industrial Intrusion Detection Research. Journal of Systems Research, vol. 3, no. 1. October 2023.

Niklas Hauser, Jan Pennekamp. Tool: Automatically Extracting Hardware Descriptions from PDF Technical Documentation. Journal of Systems Research, vol. 3, no. 1. October 2023.

Konrad Wolsing, Dominik Kus, Eric Wagner, Jan Pennekamp, Klaus Wehrle, Martin Henze. One IDS is not Enough! Exploring Ensemble Learning for Industrial Intrusion Detection. Proceedings of the 28th European Symposium on Research in Computer Security (ESORICS ‘23), vol. 14345, Sep 25 - Sep 29, 2023, The Hague, The Netherlands. September 2023.

Matthias Bodenbenner, Jan Pennekamp, Benjamin Montavon, Klaus Wehrle, Robert H. Schmitt. FAIR Sensor Ecosystem: Long-Term (Re-)Usability of FAIR Sensor Data through Contextualization. Proceedings of the 21th IEEE International Conference on Industrial Informatics (INDIN ‘23), Jul 18 - Jul 20, 2023, Lemgo, Germany. July 2023.

Jan Pennekamp, Johannes Lohmöller, Eduard Vlad, Joscha Loos, Niklas Rodemann, Patrick Sapel, Ina Berenice Fink, Seth Schmitz, Christian Hopmann, Matthias Jarke, Günther Schuh, Klaus Wehrle, Martin Henze. Designing Secure and Privacy-Preserving Information Systems for Industry Benchmarking. Proceedings of the 35th International Conference on Advanced Information Systems Engineering (CAiSE ‘23), vol. 13901, Jun 12 - Jun 16, 2023, Zaragoza, Spain. June 2023.

Jan Pennekamp, Anastasiia Belova, Thomas Bergs, Matthias Bodenbenner, Andreas Bührig-Polaczek, Markus Dahlmanns, Ike Kunze, Moritz Kröger, Sandra Geisler, Martin Henze, Daniel Lütticke, Benjamin Montavon, Philipp Niemietz, Lucia Ortjohann, Maximilian Rudack, Robert H. Schmitt, Uwe Vroomen, Klaus Wehrle, Michael Zeng. Evolving the Digital Industrial Infrastructure for Production: Steps Taken and the Road Ahead. Internet of Production: Fundamentals. February 2023.

Adrian Karl Rüppel, Muzaffer Ay, Benedikt Biernat, Ike Kunze, Markus Landwehr, Samuel Mann, Jan Pennekamp, Pascal Rabe, Mark P. Sanders, Dominik Scheurenberg, Sven Schiller, Tiandong Xi, Dirk Abel, Thomas Bergs, Christian Brecher, Uwe Reisgen, Robert H. Schmitt, Klaus Wehrle. Model-Based Controlling Approaches for Manufacturing Processes. Internet of Production. February 2023.

Jan Pennekamp, Martin Henze, Andreas Zinnen, Fabian Lanze, Klaus Wehrle, Andriy Panchenko. CUMUL & Co: High-Impact Artifacts for Website Fingerprinting Research. Cybersecurity Artifacts Competition and Impact Award at 38th Annual Computer Security Applications Conference (ACSAC ‘22), Dec 5 - Dec 9, 2022, Austin, TX, USA. December 2022.

Dominik Kus, Konrad Wolsing, Jan Pennekamp, Eric Wagner, Martin Henze, Klaus Wehrle. Poster: Ensemble Learning for Industrial Intrusion Detection. 38th Annual Computer Security Applications Conference (ACSAC ‘22), Dec 5 - Dec 9, 2022, Austin, TX, USA. December 2022.

Johannes Lohmöller, Jan Pennekamp, Roman Matzutt, Klaus Wehrle. On the Need for Strong Sovereignty in Data Ecosystems. Proceedings of the 1st International Workshop on Data Ecosystems (DEco ‘22), vol. 3306, Sep 5 - Sep 5, 2022, Sydney, NSW, Australia. Event co-located with the 8th International Conference on Very Large Databases (VLDB '22). September 2022.

Philipp Brauner, Manuela Dalibor, Matthias Jarke, Ike Kunze, István Koren, Gerhard Lakemeyer, Martin Liebenberg, Judith Michael, Jan Pennekamp, Christoph Quix, Bernhard Rumpe, Wil Van Der Aalst, Klaus Wehrle, Andreas Wortmann, Martina Ziefle. A Computer Science Perspective on Digital Transformation in Production. ACM Transactions on Internet of Things, vol. 3, no. 2. May 2022.

Dominik Kus, Eric Wagner, Jan Pennekamp, Konrad Wolsing, Ina Berenice Fink, Markus Dahlmanns, Klaus Wehrle, Martin Henze. A False Sense of Security? Revisiting the State of Machine Learning-Based Industrial Intrusion Detection. Proceedings of the 8th ACM Cyber-Physical System Security Workshop (CPSS ‘22), May 30 - May 30, 2022, Nagasaki Japan. Event co-located with the 17th ACM ASIA Conference on Computer and Communications Security (ASIACCS '22). May 2022.

Roman Matzutt, Vincent Ahlrichs, Jan Pennekamp, Roman Karwacik, Klaus Wehrle. A Moderation Framework for the Swift and Transparent Removal of Illicit Blockchain Content. Proceedings of the 2022 IEEE International Conference on Blockchain and Cryptocurrency (ICBC ‘22), May 2 - May 5, 2022, Shanghai, China. May 2022.

Markus Dahlmanns, Johannes Lohmöller, Jan Pennekamp, Jörn Bodenhausen, Klaus Wehrle, Martin Henze. Missed Opportunities: Measuring the Untapped TLS Support in the Industrial Internet of Things. Proceedings of the 2022 ACM Asia Conference on Computer and Communications Security (ASIACCS ‘22), May 30 - Jun 3, 2022, Nagasaki, Japan. May 2022.

Eric Wagner, Roman Matzutt, Jan Pennekamp, Lennart Bader, Irakli Bajelidze, Klaus Wehrle, Martin Henze. Scalable and Privacy-Focused Company-Centric Supply Chain Management. Proceedings of the 2022 IEEE International Conference on Blockchain and Cryptocurrency (ICBC ‘22), May 2 - May 5, 2022, Shanghai, China. May 2022.

Jan Pennekamp, Erik Buchholz, Markus Dahlmanns, Ike Kunze, Stefan Braun, Eric Wagner, Matthias Brockmann, Klaus Wehrle, Martin Henze. Collaboration is not Evil: A Systematic Look at Security Research for Industrial Use. Proceedings of the Workshop on Learning from Authoritative Security Experiment Results (LASER ‘20), Dec 8 - Dec 8, 2020, Austin, TX, USA. Event co-located with the 36th Annual Computer Security Applications Conference (ACSAC '20). December 2021.

Raphael Kiesel, Falk Boehm, Jan Pennekamp, Robert H. Schmitt. Development of a Model to Evaluate the Potential of 5G Technology for Latency-Critical Applications in Production. Proceedings of the 28th IEEE International Conference on Industrial Engineering and Engineering Management (IEEM ‘21), Dec 13 - Dec 16, 2021, Singapore, Singapore. December 2021.

Jan Pennekamp, Frederik Fuhrmann, Markus Dahlmanns, Timo Heutmann, Alexander Kreppein, Dennis Grunert, Christoph Lange, Robert H. Schmitt, Klaus Wehrle. Confidential Computing-Induced Privacy Benefits for the Bootstrapping of New Business Relationships. Blitz Talk at the 2021 Cloud Computing Security Workshop (CCSW ‘21), Nov 15 - Nov 15, 2021, Seoul, Korea. Event co-located with the 28th ACM SIGSAC Conference on Computer and Communications Security (CCS '21). November 2021.

Michael Kretschmer, Jan Pennekamp, Klaus Wehrle. Cookie Banners and Privacy Policies: Measuring the Impact of the GDPR on the Web. ACM Transactions on the Web, vol. 15, no. 4. November 2021.

Asya Mitseva, Jan Pennekamp, Johannes Lohmöller, Torsten Ziemann, Carl Hoerchner, Klaus Wehrle, Andriy Panchenko. POSTER: How Dangerous is My Click? Boosting Website Fingerprinting By Considering Sequences of Webpages. Proceedings of the 28th ACM SIGSAC Conference on Computer and Communications Security (CCS ‘21), Nov 15 - Nov 19, 2021, Seoul, Korea. November 2021.

Roman Matzutt, Benedikt Kalde, Jan Pennekamp, Arthur Drichel, Martin Henze, Klaus Wehrle. CoinPrune: Shrinking Bitcoin's Blockchain Retrospectively. IEEE Transactions on Network and Service Management, vol. 18, no. 3. September 2021.

Sebastian Reuter, Jens Hiller, Jan Pennekamp, Andriy Panchenko, Klaus Wehrle. Demo: Traffic Splitting for Tor — A Defense against Fingerprinting Attacks. Proceedings of the 2021 International Conference on Networked Systems (NetSys ‘21), Sep 13 - Sep 16, 2021, Lübeck, Germany. September 2021.

Jan Pennekamp, Roman Matzutt, Salil S. Kanhere, Jens Hiller, Klaus Wehrle. The Road to Accountable and Dependable Manufacturing. Automation, vol. 2, no. 3. September 2021.

Jan Pennekamp, Martin Henze, Klaus Wehrle. Unlocking Secure Industrial Collaborations through Privacy-Preserving Computation. ERCIM News, vol. 126. July 2021.

Simon Mangel, Lars Gleim, Jan Pennekamp, Klaus Wehrle, Stefan Decker. Data Reliability and Trustworthiness through Digital Transmission Contracts. Proceedings of the 18th Extended Semantic Web Conference (ESWC ‘21), vol. 12731, Jun 6 - Jun 10, 2021, Heraklion, Greece. June 2021.

Lennart Bader, Jan Pennekamp, Roman Matzutt, David Hedderich, Markus Kowalski, Volker Lücken, Klaus Wehrle. Blockchain-Based Privacy Preservation for Supply Chains Supporting Lightweight Multi-Hop Information Accountability. Information Processing & Management, vol. 58, no. 3. May 2021.

Lars Gleim, Jan Pennekamp, Liam Tirpitz, Sascha Welten, Florian Brillowski, Stefan Decker. FactStack: Interoperable Data Management and Preservation for the Web and Industry 4.0. Proceedings of the 19th Symposium for Database Systems for Business, Technology and Web (BTW ‘21), vol. P-312, Sep 13 - Sep 17, 2021, Dresden, Germany. May 2021.

Armin F. Buckhorst, Benjamin Montavon, Dominik Wolfschläger, Melanie Buchsbaum, Amir Shahidi, Henning Petruck, Ike Kunze, Jan Pennekamp, Christian Brecher, Mathias Hüsing, Burkhard Corves, Verena Nitsch, Klaus Wehrle, Robert H. Schmitt. Holarchy for Line-less Mobile Assembly Systems Operation in the Context of the Internet of Production. Proceedings of the 14th CIRP Conference on Intelligent Computation in Manufacturing Engineering (ICME ‘20), vol. 99, Jul 14 - Jul 17, 2020, Gulf of Naples, Italy. May 2021.

Markus Dahlmanns, Jan Pennekamp, Ina Berenice Fink, Bernd Schoolmann, Klaus Wehrle, Martin Henze. Transparent End-to-End Security for Publish/Subscribe Communication in Cyber-Physical Systems. Proceedings of the 1st ACM Workshop on Secure and Trustworthy Cyber-Physical Systems (SaT-CPS ‘21), Apr 28 - Apr 28, 2021, Virtual Event, USA. Event co-located with the 11th ACM Conference on Data and Application Security and Privacy (CODASPY '21). April 2021.

Jan Pennekamp, Erik Buchholz, Yannik Lockner, Markus Dahlmanns, Tiandong Xi, Marcel Fey, Christian Brecher, Christian Hopmann, Klaus Wehrle. Privacy-Preserving Production Process Parameter Exchange. Proceedings of the 36th Annual Computer Security Applications Conference (ACSAC ‘20), Dec 7 - Dec 11, 2020, Austin, TX, USA. December 2020.

Jan Pennekamp, Patrick Sapel, Ina Berenice Fink, Simon Wagner, Sebastian Reuter, Christian Hopmann, Klaus Wehrle, Martin Henze. Revisiting the Privacy Needs of Real-World Applicable Company Benchmarking. Proceedings of the 8th Workshop on Encrypted Computing & Applied Homomorphic Cryptography (WAHC ‘20), Dec 15 - Dec 15, 2020, Virtual Event. December 2020.

Lars Gleim, Liam Tirpitz, Jan Pennekamp, Stefan Decker. Expressing FactDAG Provenance with PROV-O. Proceedings of the 6th Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW ‘20), vol. 2821, Nov 1 - Nov 1, 2020, Athens, Greece. Event co-located with the 19th International Semantic Web Conference (ISWC '20). November 2020.

Wladimir De La Cadena, Asya Mitseva, Jens Hiller, Jan Pennekamp, Sebastian Reuter, Julian Filter, Klaus Wehrle, Thomas Engel, Andriy Panchenko. TrafficSliver: Fighting Website Fingerprinting Attacks with Traffic Splitting. Proceedings of the 27th ACM SIGSAC Conference on Computer and Communications Security (CCS ‘20), Nov 9 - Nov 13, 2020, Virtual Event, USA. November 2020.

Markus Dahlmanns, Johannes Lohmöller, Ina Berenice Fink, Jan Pennekamp, Klaus Wehrle, Martin Henze. Easing the Conscience with OPC UA: An Internet-Wide Study on Insecure Deployments. Proceedings of the Internet Measurement Conference (IMC ‘20), Oct 27 - Oct 29, 2020, Pittsburgh, PA, USA. October 2020.

Roman Matzutt, Jan Pennekamp, Erik Buchholz, Klaus Wehrle. Utilizing Public Blockchains for the Sybil-Resistant Bootstrapping of Distributed Anonymity Services. Proceedings of the 15th ACM ASIA Conference on Computer and Communications Security (ASIACCS ‘20), Oct 5 - Oct 9, 2020, Taipei, Taiwan. October 2020.

Jan Pennekamp, Fritz Alder, Roman Matzutt, Jan Tobias Mühlberg, Frank Piessens, Klaus Wehrle. Secure End-to-End Sensing in Supply Chains. Proceedings of the 5th International Workshop on Cyber-Physical Systems Security (CPS-Sec ‘20), Jul 1 - Jul 1, 2020, Avignon, France. Event co-located with the 8th IEEE Conference on Communications and Network Security (CNS '20). July 2020.

Philipp Niemietz, Jan Pennekamp, Ike Kunze, Daniel Trauth, Klaus Wehrle, Thomas Bergs. Stamping Process Modelling in an Internet of Production. Procedia Manufacturing, vol. 49, Oct 27 - Oct 29, 2019, Cleveland, OH, USA. July 2020.
Proceedings of the 8th International Conference on Through-Life Engineering Service (TESConf '19)

Roman Matzutt, Benedikt Kalde, Jan Pennekamp, Arthur Drichel, Martin Henze, Klaus Wehrle. How to Securely Prune Bitcoin’s Blockchain. Proceedings of the 19th IFIP Networking 2020 Conference (NETWORKING ‘20), Jun 22 - Jun 26, 2020, Paris, France. June 2020.

Jan Pennekamp, Lennart Bader, Roman Matzutt, Philipp Niemietz, Daniel Trauth, Martin Henze, Thomas Bergs, Klaus Wehrle. Private Multi-Hop Accountability for Supply Chains. Proceedings of the 1st Workshop on Blockchain for IoT and Cyber-Physical Systems (BIoTCPS ‘20), Jun 7 - Jun 7, 2020, Dublin, Ireland. Event co-located with the 2020 IEEE International Conference on Communications (ICC '20). June 2020.

Linus Roepert, Markus Dahlmanns, Ina Berenice Fink, Jan Pennekamp, Martin Henze. Assessing the Security of OPC UA Deployments. Proceedings of the 1st ITG Workshop on IT Security (ITSec ‘20), Apr 2 - Apr 3, 2020, Tübingen, Germany. April 2020.

Samuel Mann, Jan Pennekamp, Tobias Brockhoff, Anahita Farhang, Mahsa Pourbafrani, Lukas Oster, Merih Seran Uysal, Rahul Sharma, Uwe Reisgen, Klaus Wehrle, Wil Van Der Aalst. Connected, digitalized welding production — Secure, ubiquitous utilization of data across process layers. Advanced Joining Processes, vol. 125. April 2020.
Proceedings of the 1st International Conference on Advanced Joining Processes (AJP '19)

Lars Gleim, Jan Pennekamp, Martin Liebenberg, Melanie Buchsbaum, Philipp Niemietz, Simon Knape, Alexander Epple, Simon Storms, Daniel Trauth, Thomas Bergs, Christian Brecher, Stefan Decker, Gerhard Lakemeyer, Klaus Wehrle. FactDAG: Formalizing Data Interoperability in an Internet of Production. IEEE Internet of Things Journal, vol. 7, no. 4. April 2020.

Roman Matzutt, Jan Pennekamp, Klaus Wehrle. A Secure and Practical Decentralized Ecosystem for Shareable Education Material. Proceedings of the 34th International Conference on Information Networking (ICOIN ‘20), Jan 7 - Jan 10, 2020, Barcelona, Spain. January 2020.

Jan Pennekamp, Markus Dahlmanns, Lars Gleim, Stefan Decker, Klaus Wehrle. Security Considerations for Collaborations in an Industrial IoT-based Lab of Labs. Proceedings of the 3rd IEEE Global Conference on Internet of Things (GCIoT ‘19), Dec 4 - Dec 7, 2019, Dubai, United Arab Emirates. December 2019.

Jan Pennekamp, Martin Henze, Simo Schmidt, Philipp Niemietz, Marcel Fey, Daniel Trauth, Thomas Bergs, Christian Brecher, Klaus Wehrle. Dataflow Challenges in an Internet of Production: A Security & Privacy Perspective. Proceedings of the 5th ACM Workshop on Cyber-Physical Systems Security and PrivaCy (CPS-SPC ‘19), Nov 11 - Nov 11, 2019, London, United Kingdom. Event co-located with the 26th ACM SIGSAC Conference on Computer and Communications Security (CCS '19). November 2019.

Wladimir De La Cadena, Asya Mitseva, Jan Pennekamp, Jens Hiller, Fabian Lanze, Thomas Engel, Klaus Wehrle, Andriy Panchenko. POSTER: Traffic Splitting to Counter Website Fingerprinting. Proceedings of the 26th ACM SIGSAC Conference on Computer and Communications Security (CCS ‘19), Nov 11 - Nov 15, 2019, London, United Kingdom. November 2019.

Jan Pennekamp, Jens Hiller, Sebastian Reuter, Wladimir De La Cadena, Asya Mitseva, Martin Henze, Thomas Engel, Klaus Wehrle, Andriy Panchenko. Multipathing Traffic to Reduce Entry Node Exposure in Onion Routing. Proceedings of the 27th IEEE International Conference on Network Protocols (ICNP ‘19), Oct 8 - Oct 10, 2019, Chicago, IL, USA. October 2019.

Markus Dahlmanns, Chris Dax, Roman Matzutt, Jan Pennekamp, Jens Hiller, Klaus Wehrle. Privacy-Preserving Remote Knowledge System. Proceedings of the 27th IEEE International Conference on Network Protocols (ICNP ‘19), Oct 8 - Oct 10, 2019, Chicago, IL, USA. October 2019.

Jens Hiller, Jan Pennekamp, Markus Dahlmanns, Martin Henze, Andriy Panchenko, Klaus Wehrle. Tailoring Onion Routing to the Internet of Things: Security and Privacy in Untrusted Environments. Proceedings of the 27th IEEE International Conference on Network Protocols (ICNP ‘19), Oct 8 - Oct 10, 2019, Chicago, IL, USA. October 2019.

Jan Pennekamp, Martin Henze, Oliver Hohlfeld, Andriy Panchenko. Hi Doppelgänger: Towards Detecting Manipulation in News Comments. Proceedings of the 4th Workshop on Computational Methods in Online Misbehavior (CyberSafety ‘19), May 13 - May 13, 2019, San Francisco, CA, USA. Event co-located with the 28th World Wide Web Conference (WWW '19). May 2019.

Jan Pennekamp, René Glebke, Martin Henze, Tobias Meisen, Christoph Quix, Rihan Hai, Lars Gleim, Philipp Niemietz, Maximilian Rudack, Simon Knape, Alexander Epple, Daniel Trauth, Uwe Vroomen, Thomas Bergs, Christian Brecher, Andreas Bührig-Polaczek, Matthias Jarke, Klaus Wehrle. Towards an Infrastructure Enabling the Internet of Production. Proceedings of the 2nd IEEE International Conference on Industrial Cyber-Physical Systems (ICPS ‘19), May 6 - May 9, 2019, Taipei, Taiwan. May 2019.

Jan Pennekamp, Martin Henze, Klaus Wehrle. A Survey on the Evolution of Privacy Enforcement on Smartphones and the Road Ahead. Pervasive and Mobile Computing, vol. 42. December 2017.

Martin Henze, Jan Pennekamp, David Hellmanns, Erik Mühmer, Jan Henrik Ziegeldorf, Arthur Drichel, Klaus Wehrle. CloudAnalyzer: Uncovering the Cloud Usage of Mobile Apps. Proceedings of the 14th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous ‘17), Nov 7 - Nov 10, 2017, Melbourne, VIC, Australia. November 2017.

Jan Henrik Ziegeldorf, Jan Pennekamp, David Hellmanns, Felix Schwinger, Ike Kunze, Martin Henze, Jens Hiller, Roman Matzutt, Klaus Wehrle. BLOOM: BLoom filter based Oblivious Outsourced Matchings. BMC Medical Genomics, vol. 10, no. Suppl 2, Nov 11 - Nov 11, 2016, Chicago, IL, USA. July 2017.
Proceedings of the 5th iDASH Privacy and Security Workshop 2016

Andriy Panchenko, Fabian Lanze, Andreas Zinnen, Martin Henze, Jan Pennekamp, Klaus Wehrle, Thomas Engel. Website Fingerprinting at Internet Scale. Proceedings of the 23rd Annual Network and Distributed System Security Symposium (NDSS ‘16), Feb 21 - Feb 24, 2016, San Diego, CA, USA. February 2016.

Advised Theses

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A Topic in Privacy-Enhancing Technologies

Bachelor's Thesis, RWTH Aachen University, April 2025

Advisors: Johannes Lohmöller, Jan Pennekamp, Hajeong Jeon

Examiners: Klaus Wehrle, Sandra Geisler (DSMA)

A Topic in Usage Control

Bachelor's Thesis, RWTH Aachen University, April 2025

Advisors: Jan Pennekamp, Johannes Lohmöller, Hajeong Jeon

Examiners: Klaus Wehrle, Sandra Geisler (DSMA)

Privacy-Preserving Cluster-to-Cluster Matching for Single-Cell RNA Sequencing Data

Master's Thesis, RWTH Aachen University, December 2024

Advisors: Johannes Lohmöller, Jan Pennekamp, Sikander Hayat (UKA)

Examiners: Klaus Wehrle, Rafael Kramann (UKA)

Addressing sensitivity in IIoT data sharing with a modeling framework

Bachelor's Thesis, RWTH Aachen University, November 2024

Advisors: Jan Pennekamp, Paul Weiler (WZL-WM), Vincent Lohrmann (WZL-WM)

Examiners: Klaus Wehrle, Christian Brecher (WZL-WM)

Privacy-Preserving Coopetition: The Exchange of Machining Process Parameters

Master's Thesis, RWTH Aachen University, September 2024

Advisors: Jan Pennekamp, Vincent Lohrmann (WZL-WM), Paul Weiler (WZL-WM)

Examiners: Klaus Wehrle, Christian Brecher (WZL-WM)

Fine-granular risk classification for privacy-preserving contact tracing

Bachelor's Thesis, RWTH Aachen University, September 2024

Advisors: Jan Pennekamp, Koray Karabina (University of Waterloo)

Examiners: Klaus Wehrle, Koray Karabina (University of Waterloo)

Cross-Institutional Discovery of Rare-Disease Patients using Fully Homomorphic Encryption

Bachelor's Thesis, RWTH Aachen University, August 2024

Advisors: Jan Pennekamp, Johannes Lohmöller

Examiners: Klaus Wehrle, Felix Mottaghy (UKA)

Lessons Learned from the Pandemic: The Next Generation of Privacy-preserving Contact Tracing

Master's Thesis, RWTH Aachen University, July 2024

Advisors: Jan Pennekamp, Koray Karabina (University of Waterloo), Florian Kerschbaum (University of Waterloo)

Examiners: Klaus Wehrle, Koray Karabina (University of Waterloo)

Sourcing Trusted Sensing to Improve Privacy-Preserving Reputation Systems in Supply Chains

Master's Thesis, RWTH Aachen University, September 2023

Advisors: Jan Pennekamp, Lennart Bader (FKIE), Maria Spiß (FIR)

Examiners: Klaus Wehrle, Salil Kanhere (UNSW)

FOLKS Award for the best Master's theses in 2023

Systematically Exploring the Fusibility of State-of-the-Art Industrial Intrusion Detection Systems

Master's Thesis, RWTH Aachen University, February 2023

Advisors: Konrad Wolsing, Jan Pennekamp, Eric Wagner

Examiners: Klaus Wehrle, Elmar Padilla (H-BRS)

FOLKS Award for the best Master's theses in 2023

Detecting Sensor Anomalies in Supply Chains Using Semantic Checks

Bachelor's Thesis, RWTH Aachen University, February 2023

Advisors: Lennart Bader (FKIE), Jan Pennekamp

Examiners: Klaus Wehrle, Dirk Thißen

Applying Trusted Execution for Privacy-Preserving Company Benchmarking

Bachelor's Thesis, RWTH Aachen University, September 2022

Advisors: Johannes Lohmöller, Jan Pennekamp, Patrick Sapel (IKV)

Examiners: Klaus Wehrle, Christian Hopmann (IKV)

FOLKS Award for the best Bachelor's theses in 2022

Implementing FAIR Principles for Long-term Sensor Data Storage in the Internet of Production

Master's Thesis, RWTH Aachen University, August 2022

Advisors: Jan Pennekamp, Matthias Bodenbenner (WZL)

Examiners: Klaus Wehrle, Robert H. Schmitt (WZL)

Holistic Data Extraction From Technical Documentation For Generating Embedded Software

Master's Thesis, RWTH Aachen University, August 2022

Advisor: Jan Pennekamp

Examiners: Klaus Wehrle, Stefan Kowalewski (i11)

Improving Privacy-Preserving Company Benchmarking with Modern FHE Schemes

Bachelor's Thesis, RWTH Aachen University, December 2021

Advisors: Jan Pennekamp, Niklas Rodemann (WZL), Martin Henze (FKIE)

Examiners: Klaus Wehrle, Günther Schuh (WZL)

Analysis of Existing Concepts to Evaluate 5G Technology Implementation for Latency-Critical Applications in Production

Bachelor's Thesis, RWTH Aachen University, November 2021

Advisors: Jan Pennekamp, Raphael Kiesel (WZL)

Examiners: Klaus Wehrle, Robert H. Schmitt (WZL)

Integrative Process & Data Management for Safety-critical Industries

Master's Thesis, RWTH Aachen University, November 2021

Advisors: Lars Gleim (i5), Florian Brillowski (ITA), Jan Pennekamp

Examiners: Stefan Decker (i5), Thomas Gries (ITA)

Enhancing Supply Chain Management with Trustworthy and Reliable Sensor Data

Bachelor's Thesis, RWTH Aachen University, September 2021

Advisors: Jan Pennekamp, Lennart Bader (FKIE), Fritz Alder (KU Leuven)

Examiners: Klaus Wehrle, Frank Piessens (KU Leuven)

Two-way Privacy For Purchase Inquiries in Industry

Master's Thesis, RWTH Aachen University, August 2021

Advisors: Jan Pennekamp, Timo Heutmann (IPT)

Examiners: Klaus Wehrle, Robert H. Schmitt (WZL)

FOLKS Award for the best Master's thesis in 2021 & Finalist of the eurobits Excellence Award 2021

Incident Reporting and Security in Smart Supply Chains

Master's Thesis, RWTH Aachen University, May 2021

Advisors: Lars Gleim (i5), Jan Pennekamp

Examiners: Stefan Decker (i5), Klaus Wehrle

Integrity and Authenticity in Distributed Information Systems

Bachelor's Thesis, RWTH Aachen University, March 2021

Advisors: Lars Gleim (i5), Jan Pennekamp

Examiners: Stefan Decker (i5), Klaus Wehrle

Reliable Data Immutability in an Internet of Production

Bachelor's Thesis, RWTH Aachen University, March 2021

Advisors: Lars Gleim (i5), Jan Pennekamp

Examiners: Stefan Decker (i5), Klaus Wehrle

Web-Based Privacy-Preserving Comparison of KPIs

Bachelor's Thesis, RWTH Aachen University, November 2020

Advisors: Jan Pennekamp, Martin Henze (FKIE)

Examiners: Klaus Wehrle, Elmar Padilla (H-BRS)

Privacy-Preserving Company Benchmarking

Bachelor's Thesis, RWTH Aachen University, September 2020

Advisors: Jan Pennekamp, Martin Henze (FKIE), Patrick Sapel (IKV)

Examiners: Klaus Wehrle, Christian Hopmann (IKV)

Performance and Security Implications of PeerFlow --- Distributed Load Balancing in Tor

Bachelor's Thesis, RWTH Aachen University, September 2020

Advisors: Jan Pennekamp, Asya Mitseva (uni.lu)

Examiners: Klaus Wehrle, Andriy Panchenko (BTU Cottbus)

Privacy-Preserving Exchange of Process Parameters

Master's Thesis, RWTH Aachen University, July 2020

Advisors: Jan Pennekamp, Yannik Lockner (IKV)

Examiners: Klaus Wehrle, Christian Hopmann (IKV)

Berthold Vöcking Master Award in 2020 & FOLKS Award for the best Master's thesis in 2020 & Finalist of the eurobits Excellence Award 2020

A Distributed Data Revisioning System for the Internet of Production

Bachelor's Thesis, RWTH Aachen University, April 2020

Advisors: Lars Gleim (i5), Jan Pennekamp

Examiners: Stefan Decker (i5), Klaus Wehrle

Privacy and Transparency in Digital Supply Chains

Master's Thesis, RWTH Aachen University, March 2020

Advisors: Jan Pennekamp, Roman Matzutt, Philipp Niemietz (WZL)

Examiners: Klaus Wehrle, Thomas Bergs (WZL)

Young Researcher Award 2021 of the German Association for Data Protection and Data Security (GDD)

A tailored Communication Infrastructure for the Construction Site of Tomorrow

Bachelor's Thesis, RWTH Aachen University, March 2020

Advisors: Jan Pennekamp, Johannes Lipp (IMA)

Examiners: Klaus Wehrle, Ingrid Isenhardt (IMA)

Path Splitting for Tor --- A Countermeasure against Fingerprinting Attacks

Bachelor's Thesis, RWTH Aachen University, September 2019

Advisors: Jens Hiller, Jan Pennekamp

Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)

KuVS prize for best Bachelor's thesis in 2019

Online integration of industrial IOT data into custom OPC UA information models

Master's Thesis, RWTH Aachen University, September 2019

Advisors: Jan Pennekamp, Daniel Lütticke (IMA)

Examiners: Klaus Wehrle, Ingrid Isenhardt (IMA)

Exploiting User Sessions for Website Fingerprinting

Bachelor's Thesis, RWTH Aachen University, March 2019

Advisors: Jan Pennekamp, Asya Mitseva (uni.lu)

Examiners: Klaus Wehrle, Andriy Panchenko (BTU Cottbus)

FOLKS Award for the best Bachelor's thesis in 2019

Anonymity for the Tiny: Realizing Tor for the Internet of Things

Master's Thesis, RWTH Aachen University, September 2018

Advisors: Jens Hiller, Jan Pennekamp

Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)

FOLKS Award for the best Master's thesis in 2018