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 taught CS 229r: Spectral Graph Theory in Computer Science.

My regular office hours for Spring 2021 are Mondays 12:30-1:30 and Thursdays 11-12 (Eastern time). See the "Upcoming Events" below for any changes and zoom links. If you need to meet at a time outside of office hours, please contact my faculty coordinator Allison Choat <achoat@seas.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.

Upcoming Events

2021 Aug 05

In-Person Office Hours (Secondary Zoom Option)

Repeats every week every Thursday until Sat Sep 04 2021 except Thu Jul 01 2021, Thu Jul 29 2021.
1:30pm to 2:30pm


150 Western Ave, Boston, MA 02134, USA, Office 3.327

These office hours also have a back-up Zoom option for remote participants, accessible via the link below. Please note that in-person attendees will take priority.


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