Publications
DeFi Security - The 🐱 and 🐭 Game-
Speculative Denial-of-Service Attacks in Ethereum[Preprint]
Aviv Yaish, Kaihua Qin, Liyi Zhou, Aviv Zohar, Arthur Gervais -
SoK: Decentralized Finance (DeFi) Attacks
IEEE Symposium on Security and Privacy (S&P'23)
Liyi Zhou, Xihan Xiong, Jens Ernstberger, Stefanos Chaliasos, Zhipeng Wang, Ye Wang, Kaihua Qin, Roger Wattenhofer, Dawn Song, Arthur Gervais -
Do You Still Need a Manual Smart Contract Audit?[Preprint]
Isaac David, Liyi Zhou, Kaihua Qin, Dawn Song, Lorenzo Cavallaro, Arthur Gervais -
Attacking the DeFi ecosystem with flash loans for fun and
profit
Financial Cryptography and Data Security: 25th International Conference (FC'21)
Kaihua Qin, Liyi Zhou, Benjamin Livshits, Arthur Gervais -
Towards Automated Security Analysis of Smart Contracts based on Execution Property Graph[Preprint]
Kaihua Qin, Zhe Ye, Zhun Wang, Weilin Li, Liyi Zhou, Chao Zhang, Dawn Song, Arthur Gervais -
Blockchain Large Language Models[Preprint]
Yu Gai*, Liyi Zhou*, Kaihua Qin, Dawn Song, Arthur Gervais -
Smart contract and defi security: Insights from tool evaluations and practitioner surveys
International Conference on Software Engineering (ICSE’24)
Stefanos Chaliasos, Marcos Antonios Charalambous, Liyi Zhou, Rafaila Galanopoulou, Arthur Gervais, Dimitris Mitropoulos, Ben Livshits
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The Blockchain Imitation Game
Usenix Security 2023
Kaihua Qin, Stefanos Chaliasos, Liyi Zhou, Benjamin Livshits, Dawn Song, Arthur Gervais -
Quantifying Blockchain Extractable Value: How dark is the
forest?
IEEE Symposium on Security and Privacy (S&P'22)
Kaihua Qin, Liyi Zhou, Arthur Gervais -
Cyclic Arbitrage in Decentralized Exchanges
Companion Proceedings of the Web Conference (WWW'22)
Ye Wang, Yan Chen, Haotian Wu, Liyi Zhou, Shuiguang Deng, Roger Wattenhofer -
On the Just-In-Time Discovery of Profit-Generating
Transactions in DeFi Protocols
IEEE Symposium on Security and Privacy (S&P'21)
Liyi Zhou, Kaihua Qin, Antoine Cully, Benjamin Livshits, Arthur Gervais -
High-Frequency Trading on Decentralized On-Chain
Exchanges
IEEE Symposium on Security and Privacy (S&P'21)
Liyi Zhou, Kaihua Qin, Christof Ferreira Torres, Duc V Le, Arthur Gervais -
A2mm: Mitigating frontrunning, transaction reordering and
consensus instability in decentralized exchanges
Preprint
Liyi Zhou, Kaihua Qin, Arthur Gervais -
An Empirical Study of DeFi Liquidations: Incentives,
Risks,
and Instabilities
ACM Internet Measurement Conference (IMC'21)
Kaihua Qin, Liyi Zhou, Pablo Gamito, Philipp Jovanovic, Arthur Gervais -
Mitigating decentralized finance liquidations with reversible call options
Financial Cryptography and Data Security: 26th International Conference (FC 2023)
Kaihua Qin, Jens Ernstberger, Liyi Zhou, Philipp Jovanovic, Arthur Gervais
-
On How Zero-Knowledge Proof Blockchain Mixers Improve,
and
Worsen User Privacy [Preprint]
Zhipeng Wang, Stefanos Chaliasos, Kaihua Qin, Liyi Zhou, Lifeng Gao, Pascal Berrang, Ben Livshits, Arthur Gervais
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Blockchain Censorship[Preprint]
Anton Wahrstätter, Jens Ernstberger, Aviv Yaish, Liyi Zhou, Kaihua Qin, Taro Tsuchiya, Sebastian Steinhorst, Davor Svetinovic, Nicolas Christin, Mikolaj Barczentewicz, Arthur Gervais -
Time to Bribe: Measuring Block Construction Market[Preprint]
Anton Wahrstätter, Liyi Zhou, Kaihua Qin, Davor Svetinovic, Arthur Gervais -
CeFi vs. DeFi--Comparing Centralized to Decentralized
Finance
CryptoValley Conference (CVC'21)
Kaihua Qin*, Liyi Zhou*, Yaroslav Afonin, Ludovico Lazzaretti, Arthur Gervais -
Data quality transaction on
different distributed ledger technologies
International Conference on Big Scientific Data Management
Chao Wu, Liyi Zhou, Chulin Xie, Yuhang Zheng, Jiawei Yu -
SoK: Data Sovereignty
8th IEEE European Symposium on Security and Privacy (EuroS&P'23)
Jens Ernstberger, Jan Lauinger, Fatima Elsheimy, Liyi Zhou, Sebastian Steinhorst, Ran Canetti, Andrew Miller, Arthur Gervais, Dawn Song
Teaching
- July 2023 - Lecturer @ University of Zurich Summer School: Deep Dive into Blockchain
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Jul 2021 ~ Current - Teaching Assistant @ DeFi MOOC
I highly recommend DeFi MOOC for anyone interested in learning about decentralised finance. As a TA for the course, I have seen firsthand the quality of the materials and instruction offered by leading researchers in the field, including Dawn Song, Dan Boneh, Andrew Miller, Arthur Gervais, and Christine Parlour. The course covers a wide range of topics, from the basics of blockchain technology to advanced concepts in decentralised finance. Whether you are new to the field or looking to deepen your understanding, DeFi MOOC is an excellent resource!
Services
- Reviewer @ Crypto Economics Security Conference (CESC'22)
- External Reviewer @ IEEE Symposium on Security and Privacy (S&P'23)
- Invited Reviewer @ Financial Innovation (2021, 2022)
- Program Committee @ ACM CCS Workshop on Decentralized Finance and Security, 2021
- Shadow PC @ IEEE Symposium on Security and Privacy (S&P'21)
Experiences
- Dec 2023 ~ Current - Co-founder @ Decentralized Intelligence AG
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Sep 2022 ~ Dec 2022 - Research Internship @ Chainlink Labs
If you are considering internships in the field of decentralised technology, I highly recommend checking out Chainlink Research. As a leading provider of reliable and secure data feeds to the blockchain ecosystem, Chainlink has a wealth of research opportunities available for interns. Their team is composed of experts in the field who are dedicated to advancing the capabilities of decentralised systems. Interning at Chainlink would provide a valuable opportunity to gain hands-on experience and make meaningful contributions to the industry.
- Jun 2019 ~ Oct 2019 - Software Engineer @ Data Science Institute, Imperial College London
- Mar 2017 ~ Jun 2017 - Software Engineer @ Automic, Sydney, Australia
- Oct 2014 ~ Jan 2016 - Software Engineer @ Superchoice, Sydney, Australia
- Jun 2013 ~ Sep 2013 - Internship @ NewVoiceMedia, United Kingdom
- Jul 2012 ~ Aug 2012 - Internship @ J P Morgan, United Kingdom
Education
-
Oct 2019 ~ ??? 🤣🤣
PhD student in Computer Science
Imperial College London -
Oct 2017 ~ Sep 2018
MRes in Web Science and Big Data Analytics
University College London -
Oct 2010 ~ Sep 2014
MSci & ARCS in Mathematics and Computer Science
Imperial College London
Selected Talks
2023
- DeFi Security @ Ecole Polytechnique, Blockchain@polytechnique-OMI workshop
- DeFi Hack Detection and Prevention @ Imperial College London Summer School
- DeFi Hack Detection and Prevention @ DeFi Security Summit (DSS Paris)
- Real-time DeFi IDS/IPS @ The Hong Kong Polytech University
- Real-time DeFi IDS/IPS @ 0xU Hong Kong Blockchain Club
2022
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DeFi Attacks Talk @ 8th International Workshop P2PFISY workshop
P2PFISY workshop @ UCL CBT, [source]
.
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Dark Forest Talk @ The Science of Blockchain (SBC) Conference
[Youtube video] - Dark Forest Talk @ IEEE S&P
- DeFi Security Talk @ The University of Sydney (Prof. Qiang Tang's group)
2021
-
High Frequency Trading Talk (Sandwich Attacks) @ IEEE S&P
[Youtube video] - DeFi Security Talk @ Monash Univeristy (Prof. Jiangshan Yu's group)
- DeFi Security Talk @ University of Guelph (Prof. Xiaodong Lin's group)