I am a member of Harvard's Theory of Computation research group and also lead Harvard's Privacy Tools Project.  My research areas include computational complexity, cryptography, randomness in computation, and data privacy. This fall I am teaching CS 120 with co-Instructor Adam Hesterberg.

My fall office hours are usually Mondays, 1-2pm ET, via Zoom, and Thursdays, 11:15am-12:15pm ET, onsite at the SEC. Updates and schedule adjustments to those hours will also be posted in "Upcoming Events", below. If you need to meet at a time outside of office hours, please contact my faculty coordinator Allison Choat <achoat@g.harvard.edu>.

My 2012 monograph on Pseudorandomness is on my former website.

See FAQ with answers to common inquiries (including reference letters, graduate admissions, advising, internal and external service, appointments, and refereeing) and information on contacting me.