I am a computer scientist working on the foundations of cryptography and the security of practical cryptographic protocols.

Currently I am a PhD student in the CS Theory group at Columbia University, advised by James Bartusek. I completed my masters in computer science at Oregon State University, co-advised by Jiayu Xu and Mike Rosulek. Before that I worked as a software engineer and completed an undergraduate degree in mathematics from Cornell University.

My other interests include cinema, Brazilian jiu-jitsu, and science fiction.

Email: [lastname][firstinitial]@gmail.com

Published papers

• A Complete Characterization of One-More Assumptions In the Algebraic Group Model
  Jake Januzelli, Jiayu Xu (eprint)
  Asiacrypt 2025

• Lower Bounds for Garbled Circuits from Shannon-Type Information Inequalities
  Jake Januzelli, Mike Rosulek, Lawrence Roy (eprint)
  Crypto 2025

• Under What Conditions Is Encrypted Key Exchange Actually Secure?
  Jake Januzelli, Lawrence Roy, Jiayu Xu (eprint)
  Eurocrypt 2025