I am a final-year computer science Ph.D. student at UC Berkeley advised by Raluca Ada Popa. Previously, I was a research intern at Signal Messenger. My interests are broadly in security and systems. I am grateful to be supported by an NSF-GRFP fellowship.

I completed my B.S. in Electrical Engineering & Computer Science at UC Berkeley, where I worked with Scott Shenker, Aurojit Panda, and Justine Sherry in NetSys.

links: twitter - github - scholar - art

• Mark My Words: Analyzing and evaluating language model watermarks
  

  Julien Piet, Chawin Sitawarin, Vivian Fang, Norman Mu, David Wagner.
  SatML 2025 (to appear) [pdf] [code]
• Secret key recovery in a global-scale end-to-end encryption system
  

  Graeme Connell*, Vivian Fang*, Rolfe Schmidt*, Emma Dauterman, Raluca Ada Popa.
  OSDI 2024 [pdf] [code]
• Reflections on trusting distributed trust
  

  Emma Dauterman*, Vivian Fang*, Natacha Crooks, Raluca Ada Popa.
  HotNets 2022 [pdf]
• CostCO: An automatic cost modeling framework for secure multi-party computation
  

  Vivian Fang, Lloyd Brown, William Lin, Wenting Zheng, Aurojit Panda, Raluca Ada Popa.
  EuroS&P 2022 [pdf] [code]
  Distinguished Paper Award.
• Snoopy: Surpassing the scalability bottleneck of oblivious storage
  

  Emma Dauterman*, Vivian Fang*, Ioannis Demertzis, Natacha Crooks, Raluca Ada Popa.
  SOSP 2021 [pdf] [code]
• Kappa: A programming framework for serverless computing
  

  Wen Zhang, Vivian Fang, Aurojit Panda, Scott Shenker.
  SoCC 2020 [pdf] [code]
• Making edge-computing resilient
  

  Yotam Harchol, Aisha Mushtaq, Vivian Fang, James McCauley, Aurojit Panda, Scott Shenker.
  SoCC 2020 [pdf]
• Evaluating software switches: Hard or hopeless?
  

  Vivian Fang, Tamás Lévai, Sangjin Han, Sylvia Ratnasamy, Barath Raghavan, Justine Sherry.
  Tech Report No. UCB/EECS-2018-136 2018 [pdf]

• GoEx: Perspectives and Designs Towards a Runtime for Autonomous LLM Applications
  

  Shishir G. Patil, Tianjun Zhang, Vivian Fang, Noppapon C., Roy Huang, Aaron Hao, Martin Casado, Joseph E. Gonzalez, Raluca Ada Popa, Ion Stoica.
  arXiv preprint arXiv:2404.06921 [pdf] [code]
• MemGPT: Towards LLMs as Operating Systems
  

  Charles Packer, Vivian Fang, Shishir G. Patil, Kevin Lin, Sarah Wooders, Joseph E. Gonzalez.
  arXiv:2310.08560 [pdf] [code]