David Kohlbrenner

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Info

I am an Assistant Professor in the Paul G. Allen School of Computer Science and Engineering at the University of Washington.
Previously I was a post-doc with Dawn Song and the ADEPT lab at UC Berkeley, and did my PhD with Hovav Shacham at UC San Diego.

Google Scholar profile

Contact: dkohlbre [at] cs.washington.edu -or- david.kohlbrenner [at] gmail.com

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Research

My research interests span software security, systems, and hardware architecture.
I put special focus on the impact of hardware design on high-level software security.

Active projects include:
Next generation microarchitectural side-channels and formal defenses.
FPGA analog side-channels.
The Keystone TEE framework for RISC-V.

Teaching

CSE564 Computer Security and Privacy (Fall 2020)

Previously:
Advanced topics on secure hardware (UC Berkeley)
CSE80 Linux and the Command Lineaka T4CS (UC San Diego)

Conference Publications

D. Lee, D. Kohlbrenner, S. Shinde, D. Song, K. Asanovic "Keystone: An Open Framework for Architecting TEEs" EuroSys 2020.
I. Lebedev, K. Hogan, J. Drean, D. Kohlbrenner, D. Lee, K. Asanovic, D. Song, S. Devadas "Sanctorum: A lightweight security monitor for secure enclaves" Design, Automation & Test in Europe Conference & Exhibition (DATE). IEEE, 2019.
D. Kohlbrenner and H. Shacham "On the effectiveness of mitigations against floating-point timing channels." USENIX Security. August 2017
Tools and attack details
Slides
C. Disselkoen, D. Kohlbrenner, L. Porter, D. Tullsen "Prime+Abort: A Timer-Free High-Precision L3 Cache Attack using Intel TSX" USENIX Security. August 2017
D. Kohlbrenner and H. Shacham "Trusted Browsers for Uncertain Times." USENIX Security. August 2016
Second place at CSAW Applied Research 2016
Slides
M. Andrysco, D. Kohlbrenner, K. Mowery, R. Jhala, S. Lerner, and H. Shacham "On Subnormal Floating Point and Abnormal Timing." IEEE Security and Privacy (Oakland), May 2015 (Updated June 2017, original)
Slides
K. Mowery, M. Wei, D. Kohlbrenner, H. Shacham, and S. Swanson "Welcome to the Entropics: Boot-Time Entropy in Embedded Devices." IEEE Security and Privacy (Oakland), May 2013

Other Publications

D Kohlbrenner, S Shinde, D Lee, K Asanovic, D Song "Building Open Trusted Execution Environments" IEEE Security & Privacy Magazine ( Volume: 18 , Issue: 5 , Sept.-Oct. 2020 )