about me

photo of me Photo credit: Stefan Heule

I am an assistant professor in MIT's EECS department and a member of CSAIL. I am also the Douglas Ross (1954) Career Development Professor of Software Technology.

My research focuses on computer security, cryptography, and computer systems.

At MIT, I work with students and faculty in the PDOS and CSS research groups.


PhD students:
Alexandra Henzinger
Kevin Liao (co-advised with Nickolai Zeldovich)
Undergraduate research projects:
Arvid Lunnemark (Fall 2021)
Rene Reyes (Spring 2021)


I build systems that use cryptography to empower and protect their users. The projects that excite me the most: (1) serve the interests of the end user, (2) provide strong and precise forms of security, often using new cryptographic ideas, and (3) have impact through real-world deployment.

  • Techniques for reducing the computational cost of private information retrieval in theory and in practice
  • SafetyPin and True2F, systems that provide strong hardware-backed security protections, while still protecting against a wide class of hardware faults and backdoors
  • Prio, a system for the privacy-preserving collection of aggregate statistics (adopted by Mozilla's Firefox browser, offered as a service by ISRG, the entity behind Let's Encrypt, and used in Android and iOS to measure the effectiveness of their Exposure Notification systems)
  • The study of preprocessing attacks on cryptographic primitives and the risks they pose to our standardized primitives, such as the AES block cipher and the NIST family of elliptic curves

For more details, please see my full list of publications.


I have served on the program committees of Eurocrypt 2022, Oakland 2022, Oakland 2021, CRYPTO 2020, Oakland 2020, and CCS 2018.


Before coming to MIT, I completed my PhD in computer science at Stanford, advised by Dan Boneh. I also spent one year as a postdoc at EPFL, hosted by Bryan Ford.

I graduated from Yale University in 2010 with a B.S. in computer science. Before that, I grew up in Berkeley, California and was a student at Berkeley High School.


A variety of organizations, including the National Science Foundation, the U.S. Department of Defense, Facebook, and Google, have funded my research.