Prof. Oliver Hohlfeld
WARNING: This information is likely out-of-date and will not be updated!
Last updated on 2020-08-19
Last updated on 2020-08-19
CV
I’m heading the Network Architectures group at COMSYS. Before I was with Anja Feldmann at TU Berlin / Deutsche Telekom Innovation Laboratories. I was a visiting scholar at the group of Paul Barford at the University of Wisconsin - Madison, USA.
I studied computer science at Darmstadt University of Applied Sciences, Institute Eurecom (Sophia Antipolis, France) and Darmstadt University of Technology and hold a Bachelor of Science (B.Sc.) and Master of Science (M.Sc.) degree. From 2004 to 2006 I was with the Fraunhofer IGD where I worked on network schemes for telemedical applications.
Please find a more information and a full list of publications here.
Publications
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.
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.
MUST, SHOULD, DON'T CARE: TCP Conformance in the Wild.
Proceedings of the Passive and Active Measurement Conference (PAM ‘20), Eugene, Oregon, USA.
March 2020.
Congestion Control in the Wild - Investigating Content Provider Fairness.
IEEE Transactions on Network and Service Management, vol. 17, no. 2.
December 2019.
Perceiving QUIC: Do Users Notice or Even Care?.
In Proceedings of the 15th International Conference on emerging Networking EXperiments and Technologies (CoNEXT ‘19), Orlando, Florida, USA.
December 2019.
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.
DeePCCI: Deep Learning-based Passive Congestion Control Identification.
In Proceedings of the ACM SIGCOMM Workshop on Network Meets AI & ML (NetAI ‘19), Aug 23 - Aug 23, 2019, Beijing, China.
August 2019.
A Performance Perspective on Web Optimized Protocol Stacks: TCP+TLS+HTTP/2 vs. QUIC.
In Proceedings of the Applied Networking Research Workshop (ANRW ‘19), Montreal, Quebec, Canada.
July 2019.
An Empirical View on Content Provider Fairness.
In Proceedings of the Network Traffic Measurement and Analysis Conference (TMA ‘19), Jun 19 - Jun 21, 2019, Paris, France.
June 2019.
Demystifying the Performance of XDP BPF.
IEEE International Conference on Network Softwarization (NetSoft), Jun 24 - Jun 28, 2019, Paris, France.
June 2019.
Blitz-starting QUIC Connections.
COMSYS, RWTH Aachen University.
May 2019.
Hashtag Usage in a Geographically-Local Microblogging App.
Companion Proceedings of the 2019 World Wide Web Conference (WWW ‘19 Companion), San Francisco, California, USA.
May 2019.
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.
Application-Agnostic Offloading of Packet Processing.
COMSYS, RWTH Aachen University.
April 2019.
Hidden Treasures - Recycling Large-Scale Internet Measurements to Study the Internet’s Control Plane.
In Proceedings of the Passive and Active Measurement Conference (PAM ‘19), Puerto Varas, Chile.
March 2019.
TCP’s Initial Window – Deployment in the Wild and its Impact on Performance.
IEEE Transactions on Network and Service Management, vol. 16, no. 2.
January 2019.
Is the Web ready for HTTP/2 Server Push?.
Proceedings of the 14th International Conference on emerging Networking EXperiments and Technologies (CoNEXT), Crete, Greece.
December 2018.
A Long Way to the Top: Significance, Structure, and Stability of Internet Top Lists.
Proceedings of the 2018 Internet Measurement Conference (IMC), Boston, US.
October 2018.
Digging into Browser-based Crypto Mining.
Proceedings of the Internet Measurement Conference (IMC ‘18), Boston, US.
October 2018.
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.
Demystifying TCP Initial Window Configurations of Content Distribution Networks.
In Proceedings of the Network Traffic Measurement and Analysis Conference (TMA ‘18), Jun 26 - Jun 29, 2018, Vienna, Austria.
June 2018.
A First Look at Certification Authority Authorization (CAA).
ACM SIGCOMM Computer Communications Review (CCR), vol. 48.
April 2018.
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.
A First Look at QUIC in the Wild.
In Proceedings of the Passive and Active Measurement Conference (PAM ‘18), Berlin, Germany.
March 2018.
Characterizing a Meta-CDN.
In Proceedings of the Passive and Active Measurement Conference (PAM ‘18), Berlin, Germany.
March 2018.
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.
Large-Scale Scanning of TCP’s Initial Window.
In Proceedings of the Internet Measurement Conference (IMC ‘17), London, UK.
November 2017.
A QoE Perspective on HTTP/2 Server Push.
ACM SIGCOMM 2017 2nd Workshop on QoE-based Analysis and Management of Data Communication Networks (Internet-QoE 2017), El Monte, CA, United States.
August 2017.
SymPerf: Predicting Network Function Performance.
ACM, El Monte, CA, United States.
August 2017.
How HTTP/2 Pushes the Web: An Empirical Study of HTTP/2 Server Push.
Proceedings of the 16th International IFIP Networking Conference (NETWORKING'17), Jun 12 - Jun 16, 2017, Stockholm, Sweden.
June 2017.
Veiled in Clouds? Assessing the Prevalence of Cloud Computing in the Email Landscape.
Proceedings of the 2017 Network Traffic Measurement and Analysis Conference (TMA 2017), Jun 21 - Jun 23, 2017, Dublin, Ireland.
June 2017.
Performance Evaluation for New Web Caching Strategies Combining LRU with Score Based Object Selection.
Elsevier Computer Networks.
January 2017.
POSTER: I Don't Want That Content! On the Risks of Exploiting Bitcoin's Blockchain as a Content Store.
Proceedings of the 23rd ACM Conference on Computer and Communications Security (CCS), Vienna, Austria.
October 2016.
Insensitivity to Network Delay: Minecraft Gaming Experience of Casual Gamers.
IEEE QCMan, Sep 12 - Sep 16, 2016, Würzburg, Germany.
September 2016.
Performance Evaluation for New Web Caching Strategies Combining RU with Score Based Object Selection.
ITC 28.
September 2016.
New Kid on the Block: Network Functions Virtualization: From Big Boxes to Carrier Clouds.
ACM SIGCOMM CCR.
July 2016.
STEAN: A Storage and Transformation Engine for Advanced Networking Context.
Proceedings of the 15th International IFIP Networking Conference (NETWORKING'16), May 17 - May 19, 2016, Vienna, Austria.
May 2016.
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.
Editorial: Special issue on Software-Defined Networking and Network Functions Virtualization for flexible network management.
Wiley Journal of Network Management, vol. 26, no. 1.
January 2016.
ERWIN - Enabling the Reproducible Investigation of Waiting Times for Arbitrary Workflows.
IEEE QoMEX, Jun 6 - Jun 8, 2016, Lisbon, Portugal.
January 2016.
Santa: Faster Packet Delivery for Commonly Wished Replies [Poster Abstract].
Proceedings of the 43rd ACM SIGCOMM Conference (SIGCOMM ‘15), London, United Kingdom.
August 2015.
A QoE Perspective on Sizing Network Buffers.
ACM Internet Measurement Conference.
November 2014.
The Harvester, the Botmaster, and the Spammer: On the Relations Between the Different Actors in the Spam Landscape.
9th ACM Symposium on Information, Computer and Communications Security, Kyoto, Japan.
June 2014.
On Capacity Dimensioning in Dynamic Scenarios: The Key Role of Peak Values.
IEEE LANMAN, Reno, NV, USA.
May 2014.
An Internet census taken by an illegal botnet - A qualitative assessment of published measurements.
ACM SIGCOMM Computer Communication Review, vol. 44, no. 3.
January 2014.
Advised Theses
Popularity Prediction in Anonymous Online Communities
Master's Thesis, RWTH Aachen University, May 2019
Advisors:
Jens Helge Reelfs,
Examiners:
Klaus Wehrle,
Markus Strohmaier (CSSH)
Dynamics of BGP Path Prepending
Bachelor's Thesis, RWTH Aachen University, May 2019
Advisors:
Torsten Zimmermann,
Examiners:
Klaus Wehrle,
Ulrike Meyer (IT-Sec)
Internet Concentration and Implications for Robustness
Bachelor's Thesis, RWTH Aachen University, May 2019
Advisors:
,
Torsten Zimmermann
Examiners:
Klaus Wehrle,
Ulrike Meyer (IT-Sec)
Information Diffusion in a Local Messaging App
Bachelor's Thesis, RWTH Aachen University, November 2018
Advisors:
Jens Helge Reelfs,
Examiners:
Klaus Wehrle,
Marco Schmitt (IFS)
A Domain-based View on the TLS Ecosystem
Bachelor's Thesis, RWTH Aachen University, October 2018
Advisors:
Jens Hiller,
Examiners:
Klaus Wehrle,
Ulrike Meyer (IT-Sec)Bachelorpreis der Fachgruppe Informatik (itestra)
Content-Based Analysis of Communities on Jodel
Bachelor's Thesis, RWTH Aachen University, July 2018
Advisors:
,
Jens Helge Reelfs
Examiners:
Klaus Wehrle,
Markus Strohmaier (CSSH)
Analyzing Jodel in Saudi Arabia
Bachelor's Thesis, RWTH Aachen University, July 2018
Advisors:
Jens Helge Reelfs,
Examiners:
Klaus Wehrle,
Roger Häußling (IFS)
Analyzing the Jodel Application with Regard to the Influencing Factors of the Voting System on Post Ratings
Bachelor's Thesis, RWTH Aachen University, June 2018
Advisors:
,
Jens Helge Reelfs
Examiners:
Klaus Wehrle,
Markus Strohmaier (CSSH)
Measuring the Rise of TLS 1.3
Bachelor's Thesis, RWTH Aachen University, June 2018
Advisors:
Jens Hiller,
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)
Uncovering Doppelgängers in Online Communities
Master's Thesis, RWTH Aachen University, March 2018
Advisors:
,
Andriy Panchenko (uni.lu)
Examiners:
Klaus Wehrle,
Thomas Engel (uni.lu)TDWI Award (1st place) for the best thesis in 2018
Real Life Event Detection Using the Jodel Social Network
Bachelor's Thesis, RWTH Aachen University, December 2017
Advisors:
Jens Helge Reelfs,
Examiners:
Klaus Wehrle,
Marco Schmitt (IFS)
Demystifying the Performance of HTTP/2 Server Push
Master's Thesis, RWTH Aachen University, November 2017
Advisors:
Torsten Zimmermann,
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)KuVS prize for best Master's thesis in 2018 & FOLKS Award for the best Master's thesis in 2017
Enabling Internet-Scale DNS-Based Measurements
Bachelor's Thesis, RWTH Aachen University, April 2017
Advisor:
Examiners:
Klaus Wehrle,
Jürgen Giesl (LuFG i2)
Internet Version Census
Master's Thesis, RWTH Aachen University, December 2016
Advisor:
Examiners:
Klaus Wehrle,
Ulrike Meyer (IT-Sec)
Evaluation of methods for detecting opinion manipulation in news websites' comments sections
Master's Thesis, RWTH Aachen University, September 2016
Advisors:
Andriy Panchenko (uni.lu),
Examiners:
Klaus Wehrle,
Thomas Engel (uni.lu)
Impact of State-inconsistence on Gaming QoE
Master's Thesis, RWTH Aachen University, January 2016
Advisors:
,
Dennis Guse (TU Berlin)
Examiners:
Klaus Wehrle,
Sebastian Möller (TU Berlin)
Quantifying the Effects of Service Outages on Websites
Master's Thesis, RWTH Aachen University, October 2015
Advisors:
,
Ingmar Poese (TU Berlin)
Examiners:
Klaus Wehrle,
Matthias Müller (i12)
Development of an Internet-Wide Security Layer Scanner
Bachelor's Thesis, RWTH Aachen University, October 2015
Advisors:
Jan Rüth,
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)
Cluster Analysis of the Global SSL Landscape
Master's Thesis, RWTH Aachen University, September 2015
Advisors:
,
Jan Rüth
Examiners:
Klaus Wehrle,
Thomas Seidl (i9)
Proactive Parallelized Networking: Towards Minimizing Packet Processing Latencies in the Linux Kernel
Master's Thesis, RWTH Aachen University, July 2015
Advisors:
,
Florian Schmidt
Examiners:
Klaus Wehrle,
Thomas Seidl (i9)
Extending and Evaluating Errdapt in ISP Scenarios
Bachelor's Thesis, RWTH Aachen University, July 2015
Advisors:
Torsten Zimmermann,
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)
QoE von teilweise fehlerhaften Webseiten: Einfluss von Ladezeit und fehlenden Elementen
Master's Thesis, RWTH Aachen University, April 2015
Advisors:
Dennis Guse (TU Berlin),
Examiners:
Sebastian Möller (TU Berlin),
Klaus Wehrle
Measuering IPv6 Deployment from a Client Perspective
Master's Thesis, RWTH Aachen University, January 2015
Advisor:
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)
Using mobile gaze detection for user centric research
Master's Thesis, RWTH Aachen University, November 2014
Advisors:
Jó Ágila Bitsch,
Examiners:
Klaus Wehrle,
Bastian Leibe (Computer Vision)
SSL Content Cartography
Master's Thesis, RWTH Aachen University, November 2014
Advisor:
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)
Subjektive Untersuchungsmethoden bezüglich der Quality of Experience beim Gaming
Bachelor's Thesis, RWTH Aachen University, October 2014
Advisors:
Dennis Guse (TU Berlin),
Examiners:
Sebastian Möller (TU Berlin),
Klaus Wehrle
Modeling Changes in Click Modular Router Configurations for Modular Network Devices
Bachelor's Thesis, RWTH Aachen University, September 2014
Advisor:
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)
Errdapt - An adaptive packet loss correction scheme for live video streams
Bachelor's Thesis, RWTH Aachen University, September 2014
Advisors:
Torsten Zimmermann,
Examiners:
Klaus Wehrle,
Bernhard Rumpe (i3)