Gefei Tan

I am a third year PhD candidate in the Computer Science Department at Northwestern University, fortunately advised by Xiao Wang and Ning Luo. Before starting my PhD, I obtained my Master’s degree from Northwestern in 2023 and my Bachelor’s degree from Beijing University of Technology in 2020.

I am a recipient of the Google PhD Fellowship in Privacy, Safety, and Security.

Research interests: I work on applied cryptography and privacy-preserving machine learning. My recent research focuses on efficient cryptographic protocols that improves the privacy, security, and trustworthiness of real-world ML systems. I am especially interested in scaling these guarantees to larger models in the LLM era. I have also worked on secure multi-party computation, zero-knowledge proofs, and their applications on secure databases and formal verification.