Dr. Jens Hiller

Dr. Jens Hiller

WARNING: This information is likely out-of-date and will not be updated!

Last updated on 2022-10-14

I left RWTH Aachen University in October 2022 and joined Google Germany in Munich as Software Engineer in the area of privacy. The information below will not be updated, please find updated information on my personal website or LinkedIn.

I worked as researcher at the Chair of Communication and Distributed Systems at RWTH Aachen University. I began my studies in Computer Science at RWTH Aachen University in 2009, received my B.Sc. degree in 2012, and graduated with M.Sc. degree in 2014. I then joined COMSYS as a researcher and PhD student in January 2015 and became part of the Security and Privacy as well as the Network Architectures research groups. I defended my doctoral dissertation on July 1, 2022.

I am interested in security and privacy in communication systems especially focusing on today’s prominent security protocols and the Internet of Things. In the project SSICLOPS, I worked on the privacy-aware storage and handling of data in the cloud and federated clouds. In CONNECT, I worked on secure communication solutions for smart grids.

For summer 2018 and 2019, I joined Vern Paxson’s Networking & Security Group at ICSI (International Computer Science Institute, Berkeley, California, USA) as Short Term Graduate Student Researcher. This position focused on security analysis of the Internet Public Key Infrastructure under supervision of Dr. Johanna Amann.

Academic Service

See also Publons profile.

Artifact Evaluation
CoNEXT 2020 Artifact Evaluation Commitee

Reviewer for Conferences
PoPETs 2023 TPC, PoPETs external reviews (7 reviews for several issues between 2022 and 2019)

Reviewer for Journals
ACM CCR (2022, 2021), IEEE TDSC 2022, Elsevier JNCA (2021), Sensors (2021), IEEE Computer Magazine (2020), PeerJ Computer Science (2019), Computer Networks (2017), Ad Hoc Networks (2015)

Publications

See also Google Scholar

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.
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Jens Hiller. Improving Functionality, Efficiency, and Trustworthiness of Secure Communication on an Internet diversified by Mobile Devices and the Internet of Things. Ph.D. Thesis. February 2023.
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Martin Henze, Roman Matzutt, Jens Hiller, Erik Mühmer, Jan Henrik Ziegeldorf, Johannes Van Der Giet, Klaus Wehrle. Complying with Data Handling Requirements in Cloud Storage Systems. IEEE Transactions on Cloud Computing, vol. 10, no. 3. September 2022.
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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.
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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.
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Jens Hiller, Johanna Amann, Oliver Hohlfeld. The Boon and Bane of Cross-Signing: Shedding Light on a Common Practice in Public Key Infrastructures. Proceedings of the 2020 ACM SIGSAC Conference on Computer and Communications Security (CCS ’20), Nov 9 - Nov 13, 2020, Orlando, FL, USA. November 2020.
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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.
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Ralph Holz, Jens Hiller, Johanna Amann, Abbas Razaghpanah, Thomas Jost, Narseo Vallina-Rodriguez, Oliver Hohlfeld. Tracking the deployment of TLS 1.3 on the Web: A story of experimentation and centralization. ACM SIGCOMM Computer Communications Review (CCR), vol. 50, no. 3. July 2020.
Selected for the 'Best of CCR' session at SIGCOMM 2021.
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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.
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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.
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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.
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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.
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Jens Hiller, Martin Henze, Torsten Zimmermann, Oliver Hohlfeld, Klaus Wehrle. The Case for Session Sharing: Relieving Clients from TLS Handshake Overheads. IEEE 44th LCN Symposium on Emerging Topics in Networking (LCN Symposium), Oct 14 - Oct 17, 2019, Osnabrück, Germany. October 2019.
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Jens Hiller, Karsten Komanns, Markus Dahlmanns, Klaus Wehrle. Regaining Insight and Control on SMGW-based Secure Communication in Smart Grids. Proceedings of the 2019 AEIT International Annual Conference, Sep 18 - Sep 20, 2019, Firenze, Italy. September 2019.
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Oliver Hohlfeld, Helge Reelfs, Jan Rüth, Florian Schmidt, Torsten Zimmermann, Jens Hiller, Klaus Wehrle. Application-Agnostic Offloading of Packet Processing. COMSYS, RWTH Aachen University. April 2019.
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Jens Hiller, Martin Henze, Martin Serror, Eric Wagner, Jan Niklas Richter, Klaus Wehrle. Secure Low Latency Communication for Constrained Industrial IoT Scenarios. 43rd IEEE Conference on Local Computer Networks (LCN), Oct 1 - Oct 4, 2018, Chicago, IL, United States. October 2018.
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Oliver Hohlfeld, Jens Helge Reelfs, Jan Rüth, Florian Schmidt, Torsten Zimmermann, Jens Hiller, Klaus Wehrle. Application-Agnostic Offloading of Datagram Processing. Proceedings of the 2018 30th International Teletraffic Congress (ITC 30), Sep 3 - Sep 7, 2018, Vienna, Austria. September 2018.
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Quirin Scheitle, Taejoong Chung, Jens Hiller, Oliver Gasser, Johannes Naab, Roland Van Rijswijk-Deij, Oliver Hohlfeld, Ralph Holz, Dave Choffnes, Alan Mislove, Georg Carle. A First Look at Certification Authority Authorization (CAA). ACM SIGCOMM Computer Communications Review (CCR), vol. 48. April 2018.
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Jens Hiller, Mael Kimmerlin, Max Plauth, Seppo Heikkila, Stefan Klauck, Ville Lindfors, Felix Eberhardt, Dariusz Bursztynowski, Jesus Llorente Santos, Oliver Hohlfeld, Klaus Wehrle. Giving Customers Control over Their Data: Integrating a Policy Language into the Cloud. Proceedings of the 2018 IEEE International Conference on Cloud Engineering (IC2E 2018), Apr 17 - Apr 20, 2018, Orlando, Florida, USA. April 2018.
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Roman Matzutt, Martin Henze, Jan Henrik Ziegeldorf, Jens Hiller, Klaus Wehrle. Thwarting Unwanted Blockchain Content Insertion. Proceedings of the First IEEE Workshop on Blockchain Technologies and Applications (BTA), Apr 17 - Apr 20, 2018, Orlando, Florida, USA. April 2018.
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Roman Matzutt, Jens Hiller, Martin Henze, Jan Henrik Ziegeldorf, Dirk Müllmann, Oliver Hohlfeld, Klaus Wehrle. A Quantitative Analysis of the Impact of Arbitrary Blockchain Content on Bitcoin. Proceedings of the 22nd International Conference on Financial Cryptography and Data Security (FC), Nieuwpoort, Curaçao. February 2018.
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Torsten Zimmermann, Jens Hiller, Jens Helge Reelfs, Pascal Hein, Klaus Wehrle. SPLIT: Smart Protocol Loading for the IoT. Proceedings of the 15th European Conference on Wireless Sensor Networks (EWSN 2018), Madrid, Spain. February 2018.
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Martin Henze, Jens Hiller, René Hummen, Roman Matzutt, Klaus Wehrle, Jan Henrik Ziegeldorf. Network Security and Privacy for Cyber-Physical Systems. Security and Privacy in Cyber-Physical Systems: Foundations, Principles and Applications. November 2017.
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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
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Martin Henze, Roman Matzutt, Jens Hiller, Erik Mühmer, Jan Henrik Ziegeldorf, Johannes Van Der Giet, Klaus Wehrle. Practical Data Compliance for Cloud Storage. Proceedings of the 2017 IEEE International Conference on Cloud Engineering (IC2E 2017), Apr 4 - Apr 7, 2017, Vancouver, BC. April 2017.
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Martin Henze, Daniel Kerpen, Jens Hiller, Michael Eggert, David Hellmanns, Erik Mühmer, Oussama Renuli, Henning Maier, Christian Stüble, Roger Häußling, Klaus Wehrle. Towards Transparent Information on Individual Cloud Service Usage. Proceedings of the 2016 IEEE International Conference on Cloud Computing Technology and Science (CloudCom), Dec 12 - Dec 15, 2016, Luxembourg, Luxembourg. December 2016.
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Martin Henze, Jens Hiller, Sascha Schmerling, Jan Henrik Ziegeldorf, Klaus Wehrle. CPPL: Compact Privacy Policy Language. Proceedings of the 15th Workshop on Privacy in the Electronic Society (WPES), Vienna, Austria. October 2016.
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Martin Henze, Jens Hiller, Oliver Hohlfeld, Klaus Wehrle. Moving Privacy-Sensitive Services from Public Clouds to Decentralized Private Clouds. Proceedings of the Second International Workshop on Legal and Technical Issues in Cloud Computing and Cloud-Supported Internet of Things (CLaw 2016), Apr 4 - Apr 8, 2016, Berlin, Germany. April 2016.
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Jan Henrik Ziegeldorf, Jens Hiller, Martin Henze, Hanno Wirtz, Klaus Wehrle. Bandwidth-optimized Secure Two-Party Computation of Minima. 14th International Conference on Cryptology and Network Security (CANS 2015), vol. 9476. December 2015.
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René Hummen, Jens Hiller, Martin Henze, Klaus Wehrle. Slimfit - A HIP DEX Compression Layer for the IP-based Internet of Things. Wireless and Mobile Computing, Networking and Communications (WiMob), Oct 7 - Oct 9, 2013, Lyon, France. October 2013.
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René Hummen, Hanno Wirtz, Jan Henrik Ziegeldorf, Jens Hiller, Klaus Wehrle. Tailoring End-to-End IP Security Protocols to the Internet of Things. In Proceedings of the 21st IEEE International Conference on Network Protocols (ICNP 2013), Oct 7 - Oct 10, 2013, Göttingen, Germany. October 2013.
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René Hummen, Jens Hiller, Hanno Wirtz, Martin Henze, Hossein Shafagh, Klaus Wehrle. 6LoWPAN Fragmentation Attacks and Mitigation Mechanisms. Proceedings of the 6th ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec ‘13), Budapest, Hungary. April 2013.
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Jens Hiller. End-to-End Security for Internet-Connected Smart Objects. Praxis der Informationsverarbeitung und Kommunikation, vol. 36, no. 1. January 2013.
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René Hummen, Martin Henze, Jens Hiller. HIP Middlebox Puzzle Offloading and End-host Notification. January 2013.
Work in progress
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Advised Theses

TLS Meets TrustZone: Evaluating Hardware-Secured Communication for the Industrial IoT
Master's Thesis, RWTH Aachen University, March 2022
Advisors: Jens Hiller, Christian van Sloun
Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)
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
Secure Virtualization of Smart Meter Gateways
Bachelor's Thesis, RWTH Aachen University, July 2019
Advisor: Jens Hiller
Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)
Regaining Insight and Control on Proxied TLS Communication in Smart Grids
Bachelor's Thesis, RWTH Aachen University, July 2019
Advisor: Jens Hiller
Examiners: Klaus Wehrle, Bernhard Rumpe (i3)
A Domain-based View on the TLS Ecosystem
Bachelor's Thesis, RWTH Aachen University, October 2018
Advisors: Jens Hiller, Oliver Hohlfeld
Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)
Bachelorpreis der Fachgruppe Informatik (itestra)
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
Measuring the Rise of TLS 1.3
Bachelor's Thesis, RWTH Aachen University, June 2018
Advisors: Jens Hiller, Oliver Hohlfeld
Examiners: Klaus Wehrle, Bernhard Rumpe (i3)
Fast But Secure Web-Browsing for Slow Last Miles
Bachelor's Thesis, RWTH Aachen University, May 2018
Advisor: Jens Hiller
Examiners: Klaus Wehrle, Bernhard Rumpe (i3)
Low-Latency Secure Communication for the Internet of Things with Antedated Encryption and Templates
Bachelor's Thesis, RWTH Aachen University, August 2017
Advisor: Jens Hiller
Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)
TLS Session Sharing: Decreasing TLS Overhead for Smartphones
Bachelor's Thesis, RWTH Aachen University, June 2017
Advisor: Jens Hiller
Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)
SantaTLS: TLS Support for Kernel-Level Caching
Bachelor's Thesis, RWTH Aachen University, October 2016
Advisors: Jens Hiller, Torsten Zimmermann
Examiners: Klaus Wehrle, Ulrike Meyer (IT-Sec)
Protocol Offloading for IoT Devices
Bachelor's Thesis, RWTH Aachen University, September 2016
Advisors: Torsten Zimmermann, Jens Hiller
Examiners: Klaus Wehrle, Bernhard Rumpe (i3)
A Space and Processing Efficient Cloud Privacy Policy Language
Master's Thesis, RWTH Aachen University, February 2016
Advisors: Martin Henze, Jens Hiller
Examiners: Klaus Wehrle, Bernhard Rumpe (i3)