SCS Recruiting Seminar: Tegan Brennan

Event Details
  • Date/Time:
    • Tuesday March 3, 2020 - Wednesday March 4, 2020
      11:00 am - 11:59 am
  • Location: KACB 1116W
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Tess Malone, Communications Officer


Summary Sentence: Software Side Channels

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  • Tegan Brennan Tegan Brennan

TITLE: Software Side Channels


Side channels in software are a class of information leaks where non-functional side effects of software systems (such as execution time, memory usage, or power consumption) can leak information about sensitive data. In this talk, I present my research on a new class of side-channel vulnerabilities: JIT-induced side channels. In contrast to side channels introduced at the source code level, JIT-induced side channels arise at runtime due to the behavior of just-in-time (JIT) compilation.  I show the existence of this class of side channels across multiple runtimes, and I demonstrate JIT-induced timing channels in large, open source projects large enough in magnitude to be detected over the public internet. I also present an automated approach to inducing this type of side channel in programs. In evaluating my automated technique, I show that programs classified as side-channel free by four state-of-the-art side channel analysis tools are, in fact, vulnerable to JIT-induced side channels. Finally, I discuss my contributions towards scalable quantification of side-channel vulnerabilities through a caching framework for model-counting queries.


Tegan Brennan is a Ph.D. candidate in computer science at the University of California, Santa Barbara. Her research is in software engineering, formal verification, and computer security. She has worked extensively on side-channel vulnerabilities in software. Brennan is a recipient of an IGERT Fellowship in Network Science, an NCWIT Collegiate Award Honorable Mention in 2018, and an invited participant of the 2019 Rising Stars workshop. She has also interned twice with Amazon’s Automated Reasoning Group.


Additional Information

In Campus Calendar

College of Computing, School of Computer Science

Invited Audience
Faculty/Staff, Postdoc, Public, Graduate students, Undergraduate students
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  • Created By: Tess Malone
  • Workflow Status: Published
  • Created On: Feb 18, 2020 - 12:43pm
  • Last Updated: Feb 25, 2020 - 3:05pm