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Over recent years, the Resource Public Key Infrastructure (RPKI) has seen increasing adoption, with now 37.8% of the major networks filtering bogus BGP routes. Systems interact with the RPKI over Relying Party (RP) implementations that…

Cryptography and Security · Computer Science 2023-12-05 Donika Mirdita , Haya Schulmann , Niklas Vogel , Michael Waidner

The Resource Public Key Infrastructure (RPKI) protocol was standardized to add cryptographic security to Internet routing. With over 50% of Internet resources protected with RPKI today, the protocol already impacts significant parts of…

Cryptography and Security · Computer Science 2024-09-24 Haya Schulmann , Niklas Vogel , Michael Waidner

The Resource Public Key Infrastructure (RPKI) aims to secure internet routing by creating an infrastructure where resource holders can make attestations about their resources. RPKI Certificate Authorities issue these attestations and…

Cryptography and Security · Computer Science 2022-03-03 Koen van Hove , Jeroen van der Ham , Roland van Rijswijk-Deij

The Resource Public Key Infrastructure (RPKI) is the main mechanism to protect inter-domain routing with BGP from prefix hijacks. It has already been widely deployed by large providers and the adoption rate is getting to a critical point.…

Cryptography and Security · Computer Science 2024-08-23 Donika Mirdita , Haya Schulmann , Michael Waidner

The RPKI is crucial for securing the routing system of the Internet. With the RPKI, owners of Internet resources can make cryptographically backed claims, for example about the legitimate origin of their IP space. Thousands of networks use…

Cryptography and Security · Computer Science 2025-12-19 Moritz Müller-Brus , Lisa Bruder , Caspar Schutijser , Ralph Koning

Resource Public Key Infrastructure (RPKI) is a critical security mechanism for BGP, but the complexity of its architecture is a growing concern as its adoption scales. Current RPKI design heavily reuses legacy PKI components, such as X.509…

Cryptography and Security · Computer Science 2025-07-15 Haya Schulmann , Niklas Vogel

Resource Public Key Infrastructure (RPKI) is vital to the security of inter-domain routing. However, RPKI enables Regional Internet Registries (RIRs) to unilaterally takedown IP prefixes - indeed, such attacks have been launched by…

Cryptography and Security · Computer Science 2021-02-05 Kris Shrishak , Haya Shulman

The Resource Public Key Infrastructure (RPKI) has become essential to secure inter-domain routing. Despite its critical role, RPKI software remains largely untested beyond shallow parsing. Existing fuzzers, like AFL++ or libFuzzer, do not…

Cryptography and Security · Computer Science 2026-05-27 Haya Schulmann , Niklas Vogel

We present F-PKI, an enhancement to the HTTPS public-key infrastructure (or web PKI) that gives trust flexibility to both clients and domain owners, and enables certification authorities (CAs) to enforce stronger security measures. In…

Cryptography and Security · Computer Science 2022-03-30 Laurent Chuat , Cyrill Krähenbühl , Prateek Mittal , Adrian Perrig

We demonstrate the first downgrade attacks against RPKI. The key design property in RPKI that allows our attacks is the tradeoff between connectivity and security: when networks cannot retrieve RPKI information from publication points, they…

Cryptography and Security · Computer Science 2022-05-13 Tomas Hlavacek , Philipp Jeitner , Donika Mirdita , Haya Shulman , Michael Waidner

In this work, we present a novel severe buffer-overflow vulnerability in the RPKI validator Fort, that allows an attacker to achieve Remote Code Execution (RCE) on the machine running the software. We discuss the unique impact of this RCE…

Cryptography and Security · Computer Science 2024-11-26 Oliver Jacobsen , Haya Schulmann , Niklas Vogel , Michael Waidner

The Resource Public Key Infrastructure (RPKI) secures Internet routing by binding IP prefixes to authorized Autonomous Systems, yet its RSA foundations are vulnerable to quantum adversaries. A naive swap to post-quantum (PQ) signatures (eg…

Networking and Internet Architecture · Computer Science 2026-03-10 Weitong Li , Yuze Li , Taejoong Chung

Web content delivery is one of the most important services on the Internet. Access to websites is typically secured via TLS. However, this security model does not account for prefix hijacking on the network layer, which may lead to traffic…

Networking and Internet Architecture · Computer Science 2015-11-03 Matthias Wählisch , Robert Schmidt , Thomas C. Schmidt , Olaf Maennel , Steve Uhlig , Gareth Tyson

As the core of the Internet infrastructure, the TCP/IP protocol stack undertakes the task of network data transmission. However, due to the complexity of the protocol and the uncertainty of cross-layer interaction, there are often…

Cryptography and Security · Computer Science 2025-10-29 Yifan Wu , Xuewei Feng , Yuxiang Yang , Ke Xu

IP prefix hijacks allow adversaries to redirect and intercept traffic, posing a threat to the stability and security of the Internet. To prevent prefix hijacks, networks should deploy RPKI and filter bogus BGP announcements with invalid…

Networking and Internet Architecture · Computer Science 2023-03-22 Tomas Hlavacek , Haya Shulman , Niklas Vogel , Michael Waidner

The ability to quickly revoke a compromised key is critical to the security of any public-key infrastructure. Regrettably, most traditional certificate revocation schemes suffer from latency, availability, or privacy problems. These…

Cryptography and Security · Computer Science 2020-09-15 Laurent Chuat , AbdelRahman Abdou , Ralf Sasse , Christoph Sprenger , David Basin , Adrian Perrig

The adoption of security protocols such as Transport Layer Security (TLS) has significantly improved the state of traffic encryption and integrity protection on the Internet. Despite rigorous analysis, vulnerabilities continue to emerge,…

Cryptography and Security · Computer Science 2025-01-30 Mariam Moustafa , Mohit Sethi , Tuomas Aura

Validating the correctness of network protocol implementations is highly challenging due to the oracle and traceability problems. The former determines when a protocol implementation can be considered buggy, especially when the bugs do not…

Software Engineering · Computer Science 2025-04-28 Mingwei Zheng , Danning Xie , Qingkai Shi , Chengpeng Wang , Xiangyu Zhang

We explore the security of residential routers and find a range of critical vulnerabilities. Our evaluations show that 10 out of 36 popular routers are vulnerable to injections of fake records via misinterpretation of special characters. We…

Cryptography and Security · Computer Science 2022-08-26 Philipp Jeitner , Haya Shulman , Lucas Teichmann , Michael Waidner

As AI systems integrate into critical infrastructure, security gaps in AI compliance frameworks demand urgent attention. This paper audits and quantifies security risks in three major AI governance standards: NIST AI RMF 1.0, UK's AI and…

Cryptography and Security · Computer Science 2025-07-29 Keerthana Madhavan , Abbas Yazdinejad , Fattane Zarrinkalam , Ali Dehghantanha
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