Fan Zhang


I am a PhD candidate in the department of Computer Science at Cornell University. Under the able advice of Prof. Ari Juels, my research interest is in blockchains, trusted hardware, system security and applied cryptography. I'm particularly interested in understanding and building hybrid systems that enjoy the best of both blockchains and trusted hardware. I am a member of the exciting Initiative for Cryptocurrencies & Contracts (IC3). Before joining Cornell, I earned my bachelor's degree in Electronic Engineering from Tsinghua University in 2014.

Recent News

Sep. 2019, Two papers are accepted to ACM CCS'19! See you all in London!
Aug. 2019, Paralysis Proofs: Secure Access-Structure Updates for Cryptocurrencies and More is accepted to ACM AFT'19!
Apr. 2019, Ekiden: A Platform for Confidentiality-Preserving, Trustworthy, and Performant Smart Contract Execution is accepted to EuroS&P'19!
Nov. 2018, Town Crier, a trusted hardware-based oracle for smart contracts is aquired by ChainLink!
Mar. 2018, I'm awarded the IBM PhD Fellowship Award for 2018-2020.
Mar. 2018, I presented Paralysis Proof at the 5th Bitcoin workshop @ Financial Crypto 2018 in Curacao.



Fan Zhang, Sai Krishna Deepak Maram, Harjasleen Malvai, Steven Goldfeder and Ari Juels. DECO: Liberating Web Data Using Decentralized Oracles for TLS. In submission.
Sai Krishna Deepak Maram*, Fan Zhang*, Lun Wang, Andrew Low, Yupeng Zhang, Ari Juels and Dawn Song. CHURP: Dynamic-Committee Proactive Secret Sharing. In ACM CCS (to appear), 2019 (* indicates equal contribution).
Media coverage by: MIT Tech Review China
Iddo Bentov, Yan Ji, Fan Zhang, Yunqi Li, Xueyuan Zhao, Lorenz Breidenbach, Philip Daian and Ari Juels. Tesseract: Real-Time Cryptocurrency Exchange using Trusted Hardware. In ACM CCS (to appear), 2019 .
Raymond Cheng, Fan Zhang, Jernej Kos, Warren He, Nicholas Hynes, Noah M. Johnson, Ari Juels, Andrew Miller and Dawn Song. Ekiden: A Platform for Confidentiality-Preserving, Trustworthy, and Performant Smart Contracts. In IEEE EuroS&P, 2019 .
Media coverage by: Forbes
Fan Zhang, Philip Daian, Iddo Bentov and Ari Juels. Paralysis Proofs: Safe Access-Structure Updates for Cryptocurrencies and More. In ACM AFT (to appear), 2019 .
Media coverage by: BitcoinMagazine
Ethan Cecchetti, Fan Zhang, Yan Ji, Ahmed E. Kosba, Ari Juels and Elaine Shi. Solidus: Confidential Distributed Ledger Transactions via PVORM. In ACM CCS, 2017 .
Florian Tramèr, Fan Zhang, Huang Lin, Jean-Pierre Hubaux, Ari Juels and Elaine Shi. Sealed-Glass Proofs: Using Transparent Enclaves to Prove and Sell Knowledge. In IEEE EuroS&P, 2017 .
Fan Zhang, Ittay Eyal, Robert Escriva, Ari Juels and Robbert van Renesse. REM: Resource-Efficient Mining for Blockchains. In USENIX Security, 2017 .
Media coverage by: IEEE Spectrum
Fan Zhang, Ethan Cecchetti, Kyle Croman, Ari Juels and Elaine Shi. Town Crier: An Authenticated Data Feed for Smart Contracts. In ACM CCS, 2016 .
Florian Tramèr, Fan Zhang, Ari Juels, Michael K. Reiter and Thomas Ristenpart. Stealing Machine Learning Models via Prediction APIs. In USENIX Security, 2016 .
Longqi Yang, Yin Cui, Fan Zhang, John P Pollak, Serge Belongie and Deborah Estrin. PlateClick: Bootstrapping Food Preferences Through an Adaptive Visual Interface. In ACM CIKM, 2015 .


Here are some of the open-source artifacts from my research: See more on my GitHub page @bl4ck5un.

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Professional Activities