I am a postdoctoral researcher at the National University of Singapore, hosted by Prashant Nalini Vasudevan. I completed my PhD at Tel Aviv University, where I was advised by Benny Applebaum and Nir Bitansky. I also completed my MSc at Tel Aviv University under the supervision of Nir Bitansky.

My research interests lie broadly in theoretical computer science, and specifically in the foundations of cryptography.

Contact: nathangeier.cs@gmail.com

• Optimal Amplification via Bias-Resilient Combiners
  Benny Applebaum and Nathan Geier
  TCC 2026

• Security Amplification via Robust Indistinguishability Combiners
  Benny Applebaum, Nir Bitansky and Nathan Geier
  CRYPTO 2026

• Amplification of Non-Interactive Zero Knowledge, Revisited
  Nir Bitansky and Nathan Geier
  CRYPTO 2024

• A Tight Computational Indistinguishability Bound for Product Distributions
  Nathan Geier
  TCC 2022 Best Young Researcher Award

• On Oblivious Amplification of Coin-Tossing Protocols
  Nir Bitansky and Nathan Geier
  ITCS 2020

• Amplification of Non-Interactive Zero Knowledge, Revisited (CRYPTO 2024)

• A Tight Computational Indistinguishability Bound for Product Distributions (TCC 2022)