Luke Valenta
Research Engineer
Luke Valenta is a research engineer primarily focused on building secure, reliable systems and measuring the Internet.
He is broadly interested in computer security, network and protocol measurement, applied cryptography, privacy, elliptic curves, cryptocurrencies, and distributed systems.
Prior to joining Cloudflare, he completed his PhD at the University of Pennsylvania in applied cryptography and measurement of cryptographic devices.
Research Areas
Cryptography, Internet Measurement, Privacy, Security, Distributed Systems
Projects
Publications
2023Global, Passive Detection of Connection Tampering
ACM SIGCOMM 2023 Conference (ACM SIGCOMM23), September 10–14, 2023, New York, NY, USA.
Ram Sundara Raman,
Louis-Henri Merino,
Kevin Bock,
Marwan Fayed,
Dave Levin,
Nick Sullivan,
Luke Valenta
2022Might I Get Pwned: A Second Generation Compromised Credential Checking Service
31th USENIX Security Symposium (USENIX Security 22).
Bijeeta Pal,
Mazharul Islam,
Marina Sanusi Bohuk,
Nick Sullivan,
Luke Valenta,
Tara Whalen,
Christopher A. Wood,
Thomas Ristenpart,
Rahul Chattejee
2022Toppling Top Lists: Evaluating the Accuracy of Popular Website Lists
IMC '22: Proceedings of the 22nd ACM Internet Measurement Conference, Pages 374–387, October 25-27, France. 2022.
Kimberly Ruth,
Deepak Kumar,
Brandon Wang,
Luke Valenta,
Zakir Durumeric
2022Respect the ORIGIN! A Best-case Evaluation of Connection Coalescing
ACM Internet Measurement Conference 2022, October 25-27, France. 2022.
Sudheesh Singanamalla,
Talha Paracha,
Suleman Ahmad,
Jonathan Hoyland,
Luke Valenta,
Yevgen Safronov,
Peter Wu,
Andrew Galloni,
Kurtis Heimerl,
Nick Sullivan,
Christopher A. Wood,
Marwan Fayed
2021Implementing and measuring KEMTLS
Progress in Cryptology – LATINCRYPT 2021, Lecture Notes in Computer Science(), vol 12912. Springer, 2021.
Sofía Celi,
Armando Faz-Hernandez,
Nick Sullivan,
Goutam Tamvada,
Luke Valenta,
Thom Wiggers,
Bas Westerbaan,
Christopher A. Wood
2018403 Forbidden: A Global View of CDN Geoblocking
Proceedings of the Internet Measurement Conference 2018, pp. 218-230. 2018.
Allison McDonald,
Matthew Bernhard,
Luke Valenta,
Benjamin VanderSloot,
Will Scott,
Nick Sullivan,
J. Alex Halderman,
Roya Ensafi
2018In search of CurveSwap: Measuring elliptic curve implementations in the wild
2018 IEEE European Symposium on Security and Privacy (EuroS&P), pp. 384-398. IEEE, 2018.
Luke Valenta,
Nick Sullivan,
Antonio Sanso,
Nadia Heninger
Blog posts
- A look at the latest post-quantum signature standardization candidates
- A global assessment of third-party connection tampering
- Bringing insights into TCP resets and timeouts to Cloudflare Radar
- NIST’s first post-quantum standards
- Harnessing chaos in Cloudflare offices
- Cloudflare now uses post-quantum cryptography to talk to your origin server
- Privacy-Preserving Compromised Credential Checking
- Introducing SSL/TLS Recommender
- The TLS Post-Quantum Experiment
- Monsters in the Middleboxes: Introducing Two New Tools for Detecting HTTPS Interception