Jeff Champion

I am a PhD student in computer science at UT Austin working with David Wu. I'm generally interested in theoretical computer science, especially cryptography.

Previously, I majored in math and computer science at Northeastern University, where I was fortunate to be mentored by abhi shelat and Jonathan Ullman.

Publications

• Untelegraphable Encryption and its Applications
  Jeffrey Champion, Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa
  arXiv


• Distributed Broadcast Encryption from Lattices
  Jeffrey Champion, David J. Wu
  TCC 2024 ePrint


• Non-Interactive Zero-Knowledge from Non-Interactive Batch Arguments
  Jeffrey Champion, David J. Wu
  CRYPTO 2023 ePrint Slides


• Securely Sampling Biased Coins with Applications to Differential Privacy
  Jeffrey Champion, abhi shelat, Jonathan Ullman
  CCS 2019 ePrint Slides GitLab

Teaching

• 2024 CS 395T: Topics In Cryptogrphy
• 2022 CS 388H: Cryptography
• 2021 CS 346: Cryptography
• 2021 CS 331: Algorithms