Nathan Manohar

I am a fourth year computer science PhD student at UCLA. I am very fortunate to be advised by Prof. Amit Sahai. My main research interests are cryptography, computer security, and, more broadly, theoretical computer science.

During the summer of 2020, I interned at the IBM T.J. Watson Research Center, where I worked with Dr. Charanjit S. Jutla and Prof. Victor Shoup.

I received a bachelor's degree in Computer Science and Mathematics and a master's degree in Computer Science from Harvard University in 2016. I spent a year as a graduate student researcher at Stanford University, where I worked with Profs. Dan Boneh, Mary Wootters, and Moses Charikar.


Email: n lastname [at] cs [dot] ucla [dot] edu


We developed a dedicated hardware-based solution for Bluetooth-based contact tracing that is based on current public health guidelines for COVID-19. The solution preserves the privacy of participants until they come in contact with a known positive user, at which point the contact is revealed to public health officials to supplement their manual contact tracing efforts. Our approach balances individual privacy with the needs of public health officials and is more accurate than using phones. The paper can be found here.





I have been a teaching assistant for the following courses.

  • CS 181: Languages and Automata Theory (Winter 2019: UCLA, taught by Prof. Amit Sahai)
  • CS 127: Introduction to Cryptography (Spring 2016: Harvard, taught by Prof. Boaz Barak)
  • Applied Math 107: Graph Theory and Combinatorics (Spring 2015: Harvard, taught by Prof. Leslie Valiant)
  • Applied Math 107: Graph Theory and Combinatorics (Spring 2014: Harvard, taught by Prof. Leslie Valiant)

Conference Reviews

I have served as an external reviewer for the following conferences.

  • EUROCRYPT 2019, CRYPTO 2019, TCC 2019, ITCS 2020, EUROCRYPT 2020, PKC 2020, CRYPTO 2020, SCN 2020, ASIACRYPT 2020, TCC 2020, PKC 2021


I play violin in the UCLA Symphony. A list of past performances can be found here. All are welcome to attend any of our concerts. You can also watch them via livestream.