Teaching
Fall 2024: CS33251-2: Security and Privacy Issues of GenAI (G)
Spring 2025: CS23400: Mobile Computing (UG)
Contact info
Lab: Crerar 377
Office: Crerar 371
University of Chicago
Chicago, IL 60637-1588
htzheng at cs dot uchicago dot edu
I am the Neubauer Professor of Computer Science at University of Chicago. I received my PhD in Electrical and Computer Engineering from University of Maryland, College Park in 1999. Prior to joining University of Chicago in 2017, I spent 6 years in industry labs (Bell-Labs, NJ and Microsoft Research Asia), and 12 years at University of California at Santa Barbara. At UChicago, I co-direct the SAND Lab (Security, Algorithms, Networking and Data) together with Prof. Ben Y. Zhao.
I was selected as one of the MIT Technology Review's TR 35 (2005) for my work on Cognitive Radios; my work was featured by MIT Technology Review as one of the 10 Emerging Technologies (2006). I am a fellow of the World Technology Network, an IEEE Fellow (class'15) and an ACM Fellow (Class'22). More details in my CV.
I am extremely fortunate to have had the opportunity to work with and continue to work alongside a talented group of students. I am always looking for talented and self-motivated graduate students on applied machine learning, and security and privacy. Prospective students should email me your resume with a subject line of "UChicago PhD Applicant." I am also looking for UChicago undergraduates in these areas (email me your resume with a subject line of "UChicago UG Research.")
My Research
Over my 20+ years in research labs and academia, my research has evolved and adapted to target important
high impact research problems that match my interests and research background. I subscribe
to the practice of focusing on innovative ideas and maximizing impact over incrementalism. In the past,
this has covered significant ground in wireless networking, mobile systems, network measurements and
security.
Most recently, I am focusing my attention on three broad areas:
- Copyright protection and fake content detection wrt generative AI systems; some recent works include Glaze, NightShade, Implosion, and GenAIdetector;
- Security & privacy of deep learning systems (how
can we design and train deep neural networks to improve security for computer systems while remaining
robust against a wide range of powerful adversarial attacks); some recent works include Blacklight for black-box query attack detection, and forensic tools to protect ML models post-deployment (PoisonForensics, Post-Breach-Recovery, ModelVersioning);
- Mobile/IoT/VR sensing and its implications on security and privacy (what does the increasing ubiquity of sensors for RF, video, and audio mean for personal privacy and security); check out bracelet-of-silence, EMS-based-authentication, WiFi-reconnaissance, Fawkes, single-camera-keystroke-inferece-attack, VR-keystroke-inference-attack.
Press/Media: A collection of recent news and media coverage of our SAND Lab's research is here.
TPC co-Chair: MobiCom 2015,DySPAN 2011, SDR 2009
Recent TPCs: SIGCOMM, MobiCom, MobiSys, S&P