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Haya Schulmann

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About the author

Dr. Haya Schulmann is Professor for computer science at Goethe-Universität Frankfurt. She is also a board member of ATHENE and a head of the research area Analytics-based Cybersecurity in the national research centre ATHENE.

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KeyTrap Algorithmic Complexity Attacks Exploit Fundamental Design Flaw in DNSSEC

KeyTrap Algorithmic Complexity Attacks Exploit Fundamental Design Flaw in DNSSEC

10 min read

KeyTrap - described by some as 'the worst attack on DNS ever discovered' - is capable of exhausting CPU resources and stalling widely used DNS implementations and public DNS providers, like Google Public DNS and Cloudflare. The research team from ATHENE explain how they discovered the attack.

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Stalloris: RPKI Downgrade Attack

Stalloris: RPKI Downgrade Attack

6 min read

Our research considers the impact of malicious publication points on the resilience of RPKI. We explored attacks that target the functionality of the relying party implementations and evaluated the resulting impact on the RPKI validation. We found all the relying party implementations to be vulnera…

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