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Luke Valenta 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



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