Hey everyone! Welcome to my personal website. Below, you will find a summary of my scientific publication, links to my articles and talks as well as links to open-source tooling. If any questions arise, feel free to contact me!
Dissertation
Since my dissertation contains unpublished material, the ZIP is encrypted with a passphrase. You may ask me personal to obtain the passphrase.
Download the dissertation here.
Published Research
Keep Your Friends Close, but Your Routeservers Closer: Insights into RPKI Validation in the Internet
Authors: Tomas Hlavacek, Haya Schulman, Niklas Vogel, Michael Waidner
Published at: USENIX Security 2023
Available Online: DOI
The CURE to Vulnerabilities in RPKI Validation
Authors: Donika Mirdita, Haya Schulmann, Niklas Vogel, Michael Waidner
Published at: NDSS Symposium 2024
Avaiable Online: DOI
The Harder You Try, The Harder You Fail: The KeyTrap Denial-of-Service Algorithmic Complexity Attacks on DNSSEC
Authors: Elias Heftrig, Haya Schulmann, Niklas Vogel, Michael Waidner
Published at: CCS 2024
Avaiable Online: DOI
Pruning the Tree: Rethinking RPKI Architecture From The Ground Up
Authors: Haya Schulmann, Niklas Vogel
Published at: NDSS Symposium 2026
Available Online: Preprint
Are we actually there? Assessing RPKI Maturity
Authors: Haya Schulmann, Niklas Vogel, Michael Waidner
Published at: Communications of the ACM (CACM)
Available Online: Preprint
Poster: Insights into Global Deployment of RPKI Validation
Authors: Haya Schulmann, Niklas Vogel, Michael Waidner
Published at: CCS 2022
Avaiable Online: DOI
Poster: From Fort to Foe: The Threat of RCE in RPKI
Authors: Oliver Jacobsen, Haya Schulmann, Niklas Vogel, Michael Waidner
Published at: CCS 2023
Available Online: DOI
Demo: Stopping Production Testing: A graphical RPKI Test-Suite
Authors: Tobias Kirsch, Haya Schulmann, Niklas Vogel
Published at: CCS 2025
Avaiable Online: DOI
Poster: We must talk about RPKI Repositories
Authors: Haya Schulmann, Niklas Vogel
Published at: CCS 2025
Avaiable Online: DOI
Poster: The Rocky Road Towards RPKI Algorithm Agility
Authors: Katharina Miesch, Haya Schulmann, Niklas Vogel
Published at: CCS 2025
Avaiable Online: DOI
Protocol Fixes for KeyTrap Vulnerabilities
Authors: Elias Heftrig, Haya Schulmann, Niklas Vogel, Michael Waidner
Published at: ANRW 2024
Avaiable Online: DOI
Attacking with Something That Does Not Exist: ‘Proof of Non-Existence’ Can Exhaust DNS Resolver CPU
Authors: Olivia Gruza, Elias Heftrig, Oliver Jacobsen, Haya Schulmann, Niklas Vogel
Published at: WOOT 2024
Avaiable Online: DOI
Industry Talks
Crashing the Party: Vulnerabilities in RPKI Validation
Venue: BlackHat USA 2024
Speakers: Donika Mirdita, Niklas Vogel
Available Online: URL
How the Internet Dodged a Bullet: The KeyTrap Denial-of-Service Attacks against DNSSEC
Venue: BlackHat Europe 2024
Speakers: Elias Heftrig, Niklas Vogel
Available Online: URL
WEBINAR: How the Internet Dodged a Bullet: The KeyTrap Denial-of-Service Attacks against DNSSEC
Venue: BlackHat Webinar Series
Speakers: Elias Heftrig, Niklas Vogel
NANOG 89
Venue: NANOG 89 San Diego
Speakers: Niklas Vogel
Available Online: URL
Blog Articles
Crashing the Party – Vulnerabilities in RPKI Relying Party Software
Blog: RIPE Labs URL
KeyTrap Algorithmic Complexity Attacks Exploit Fundamental Design Flaw in DNSSEC
Blog: RIPE Labs URL
Tools
RPKI Web
ASN.1 parser and RPKI tester
Available at: Link