Computer security and applied cryptography researcher
Computer Security, Applied Cryptography, Privacy, Distributed Systems
University of Pennsylvania
- Ph.D. computer science, advised by Nadia Heninger
Sep 2014 - May 2019
- M.S. computer science, GPA 3.93
Sep 2014 - May 2016
University of Maryland
- B.S. computer science, B.S. mathematics, GPA 4.0
Sep 2011 - May 2014
Frostburg State University
- Double major physics and mathematics, GPA 4.0
Sep 2009 - May 2011
July 2019 - present
Systems Engineer - Cryptography, Cloudflare
May 2018 - Jul 2018
Cryptography Engineering Intern, Cloudflare
- Built mitmengine, a tool for detecting HTTPS interception
- Expanded data processing pipeline for cryptographic analysis of TLS messages
- Gathered and processed data on customer geo-blocking behavior (see 403 Forbidden paper)
Jun 2017 - Aug 2017
Ph.D. Intern, Advanced Security Research Group, Cisco Systems
- Built SSH and IKE modules for the Joy network security monitor
SIGCOMM 2023Global, Passive Detection of Connection Tampering. Ram Sundara Raman, Louis-Henri Merino, Kevin Bock, Marwan Fayed, Dave Levin, Nick Sullivan, Luke Valenta
IMC 2022Respect the ORIGIN! a best-case evaluation of connection coalescing in the wild. 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
IMC 2022Toppling top lists: Evaluating the accuracy of popular website lists. Kimberly Ruth, Deepak Kumar, Brandon Wang, Luke Valenta, Zakir Durumeric
USENIX Sec 2022Might I Get Pwned: A Second Generation Compromised Credential Checking Service. Bijeeta Pal, Mazharul Islam, Marina Sanusi Bohuk, Nick Sullivan, Luke Valenta, Tara Whalen, Christopher Wood, Thomas Ristenpart, Rahul Chatterjee
LatinCrypt 2021Implementing and Measuring KEMTLS. Sofía Celi, Armando Faz-Hernández, Nick Sullivan, Goutam Tamvada, Luke Valenta, Thom Wiggers, Bas Westerbaan, Christopher A. Wood
IMC 2018403 Forbidden: A Global View of CDN Geoblocking. Allison McDonald, Matthew Bernhard, Luke Valenta, Benjamin VanderSloot, Will Scott, Nick Sullivan, J. Alex Halderman, Roya Ensafi
EuroS&P 2018In search of CurveSwap: Measuring elliptic curve implementations in the wild. Luke Valenta, Nick Sullivan, Antonio Sanso, Nadia Heninger.
CCS 2017May the Fourth Be With You: A Microarchitectural Side Channel Attack on Several Real-World Applications of Curve25519. Daniel Genkin, Luke Valenta, Yuval Yarom.
PQCrypto 2017Post-quantum RSA. Daniel J. Bernstein, Nadia Heninger, Paul Lou, Luke Valenta.
NDSS 2017Measuring small subgroup attacks against Diffie-Hellman. Luke Valenta, David Adrian, Antonio Sanso, Shaanan Cohney, Joshua Fried, Marcella Hastings, J. Alex Halderman, Nadia Heninger.
USENIX Sec 2016DROWN: Breaking TLS using SSLv2. Nimrod Aviram, Sebastian Schinzel, Juraj Somorovsky, Nadia Heninger, Maik Dankel, Jens Steube, Luke Valenta, David Adrian, J. Alex Halderman, Viktor Dukhovni, Emilia Käsper, Shaanan Cohney, Susanne Engels, Christof Paar, Yuval Shavitt.
FC 2016Factoring as a Service. Luke Valenta, Shaanan Cohney, Joshua Fried, Satya Boddulari, Nadia Heninger.
CCS 2015Imperfect Forward Secrecy: How Diffie-Hellman Fails in Practice. David Adrian, Karthikeyan Bhargavan, Zakir Durumeric, Pierrick Gaudry, Matthew Green, J. Alex Halderman, Nadia Heninger, Drew Springall, Emmanuel Thomé, Luke Valenta, Benjamin VanderSloot, Eric Wustrow, Santiago Zanella-Béguelin, and Paul Zimmermann. Best paper award.
SIGCOMM 2015Alibi Routing. Dave Levin, Youndo Lee, Luke Valenta, Zhihao Li, Victoria Lai, Cristian Lumezanu, Neil Spring, Bobby Bhattacharjee.
BITCOIN 2015Blindcoin: Blinded, Accountable Mixes for Bitcoin. Luke Valenta, Brendan Rowan.
Go, Python, Rust, C
UNIX, Linux, Android
Oct 2016Finalist, Facebook Internet Defense Prize
Aug 2016Pwnie Award - Best Cryptographic Attack, Black Hat
Oct 2015Best Paper Award, ACM CCS
Aug 2015Pwnie Award - Most Innovative Research, Black Hat
Sep 2013Philip Merrill Presidential Scholar
Sep 2013John D. Gannon Scholarship
Sep 2012 - May 2013University of Maryland Computer Science Departmental Honors
Sep 2012Jeffrey C. and Sandra W. Huskamp Computer Science Scholarship
Sep 2012Honor Society of Phi Kappa Phi, College Park Chapter
Sep 2010Kappa Mu Epsilon Mathematics Honor Society
Sep 2011 - May 2014Dean’s List, University of Maryland
Sep 2009 - May 2011Dean’s List, Frostburg State University
USENIX Sec 201928th Usenix Security Symposium, program committee
FC 2019Financial Cryptography and Data Security, program committee
BITCOIN 2018Workshop on Bitcoin and Blockchain Research, program committee
BITCOIN 2017Workshop on Bitcoin and Blockchain Research, program committee
PETS 2017.4Privacy Enhancing Technologies, external reviewer
2017 - 2018Computer and Information Science Graduate Association, University of Pennsylvania, co-chair
2016 - 2017Graduate Student Engineering Group, University of Pennsylvania, president
2015 - 2016Graduate Student Engineering Group, University of Pennsylvania, vice president
2014 - presentSecurity Lab, University of Pennsylvania, sysadmin
2014 - presentSecurity Reading Group, University of Pennsylvania, organizer
EuroS&P 2018In search of CurveSwap: Measuring elliptic curve implementations in the wild.
CCS 2017May the Fourth Be With You: A Microarchitectural Side Channel Attack on Several Real-World Applications of Curve25519.
NDSS 2017Measuring small subgroup attacks against Diffie-Hellman.
FC 2016Factoring as a Service.
BITCOIN 2015Blindcoin: Blinded, Accountable Mixes for Bitcoin.
Cloudflare Connect 2023What security leaders need to know about post-quantum cryptography. (slides)
BlackHat USA 2019Monsters in the Middleboxes: Building Tools for Detecting HTTPS Interception. (slides)
BlackHat EU 2018In search of CurveSwap: Measuring elliptic curve implementations in the wild.
Nov 2016Factoring as a Service. Boston University Security Group.
Mar 2015How Bitcoin Works. Net Tuesday Philly Meetup.
Fall 2017CIS551: Computer and Network Security, University of Pennsylvania, TA
Fall 2016CIS551: Computer and Network Security, University of Pennsylvania, TA
Spring 2016CIS331: Computer Security, University of Pennsylvania, TA
Fall 2015CIS556: Cryptography, University of Pennsylvania, TA
Fall 2013CMSC216: Introduction to Computer Systems, University of Maryland, TA
Fall 2010 - Spring 2011MATH237: Calculus II, Frostburg State University, tutor
Fall 2010 - Spring 2011MATH236: Calculus I, Frostburg State University, tutor
Computer Networks, Algorithms, Programming Handheld Devices, Network Security, Programming Languages, Cryptography, Computer Architecture, Discrete Structures, Computer Systems, Object Oriented Programming, Machine Learning
Nov 2014, Nov 2016Mr. and Mrs. Penn Bodybuilding Competition, participant
Sep 2011 - May 2014UMD Gymkana Troupe (gymnastics), member
Sep 2013PennApps Hackathon, participant
Nov 2012ACM Mid-Atlantic Regional Programming Contest, ninth place
Sep 2012 - May 2014UMD Mobile Applications Developers Club, member