Talks

2023

• Domain-based Email Authentication: SPF, DKIM, and DMARC.
  CrypTool Symposium, Munich, Germany, March 31, 2023.
  Slides

2019

• Domain Impersonation is Feasible: A Study of CA Domain Validation Vulnerabilities.
  Bonn, Germany, July 24, 2019.
  Paper Slides

2018

• Towards Comprehensible Explanations of Phenomena in Home Automation Systems (Poster).
  PerCom, Athens, Greece, March 20, 2018.
  Paper Poster

2017

• Domain Name System without Root Servers.
  CRiSIS Conference, Dinard, France, September 21, 2017.
  Paper Slides

• Sicheres Speichern und Teilen von Daten in der Hybrid Cloud.
  Seminar der Deutschen Hochschule der Polizei, Münster, September 11, 2017.

• Measurement Survey of Server-Side DNSSEC Adoption.
  TMA Conference, Maynooth, Ireland, June 23, 2017.
  Paper BibTeX Slides Video Data

2016

• DNS-Spoofing und Internetsperren.
  CAST-Workshop Forensik und Internetkriminalität, Darmstadt, Germany, December 15, 2016.
  Slides

• Towards a GPU-Accelerated Domain Name System.
  DINR Workshop, Marina del Rey, California, USA, November 17, 2016.
  Abstract Slides

• Video-Erkennung mit Smartphones und Smartwatches.
  Kasseler Informatik-Kolloquium, Kassel, Germany, July 7, 2016.
  Slides Video

• Measurement Survey of Server-Side DNSSEC Adoption.
  DNSSEC Workshop, ICANN 56, Helsinki, Finland, June 27, 2016.
  Slides

• Über die Auswirkungen von DNSSEC auf das Internet.
  GI-Dissertationspreis 2015, Dagstuhl, Germany, May 3, 2016.
  Paper Slides

2015

• The Impact of DNSSEC on the Internet Landscape.
  Duisburg, Germany, June 19, 2015.
  Thesis BibTeX Permalink Slides

• DNSSEC and the Hassle of Negative Responses.
  Erlangen, Germany, April 20, 2015.
  Slides

2014

• GPU-based NSEC3 Hash Breaking.
  Cambridge, Massachusetts, USA, August 22, 2014.
  Paper BibTeX Slides

2013

• Internet Measurement Research.
  Kassel, Germany, October 1, 2013.
  Slides

• GPU-based NSEC3 Hash Breaking.
  DNS-OARC Workshop, Dublin, Ireland, May 13, 2013.
  Slides (HTML) Slides (PDF)

• Measuring Occurrence of DNSSEC Validation.
  PAM Conference, Hong Kong, China, March 19, 2013.
  Paper BibTeX Slides (HTML) Slides (PDF)

2012

• An Overview of Secure Name Resolution — DNSSEC, DNSCurve and Namecoin.
  29C3, Hamburg, Germany, December 29, 2012.
  Slides (HTML) Slides (PDF) Video

• Measuring Occurrence of DNSSEC Validation.
  DNS-OARC Workshop, Toronto, Ontario, Canada, October 14, 2012.
  Slides (HTML) Slides (PDF)

• Measuring Occurrence of DNSSEC Validation.
  Duisburg, Germany, August 21, 2012.
  Slides (HTML)

• NTALG – TCP NAT Traversal with Application-Level Gateways (Demonstration).
  CCNC, Las Vegas, Nevada, USA, January 15, 2012.
  Paper BibTeX Poster

2011

• TCP Hole Punching Based on SYN Injection.
  IEEE NCA, Cambridge, Massachusetts, USA, August 27, 2011.
  Paper BibTeX Slides

• Detecting Opportunistic Cheaters in Volunteer Computing.
  MobiPST, Maui, Hawaii, July 31, 2011.
  Paper BibTeX Slides

• How Bitcoin Works.
  Duisburg, Germany, June 29, 2011.
  Slides

2010

• Towards Peer-to-Peer-based Cryptanalysis.
  SICK Workshop, Denver, Colorado, USA, October 14, 2010.
  Slides