309 citations · 316 across the 8 of their papers we have counts for
9 papers
What Drives the (In)stability of a Stablecoin?
Yujin Kwon, Kornrapat Pongmala, Kaihua Qin +5
In May 2022, an apparent speculative attack, followed by market panic, led to the precipitous downfall of UST, one of the most popular stablecoins at that time. However, UST is not…
Mitigating Decentralized Finance Liquidations with Reversible Call Options
Kaihua Qin, Jens Ernstberger, Liyi Zhou +2
Liquidations in Decentralized Finance (DeFi) are both a blessing and a curse -- whereas liquidations prevent lenders from capital loss, they simultaneously lead to liquidation spir…
Performance of EdDSA and BLS Signatures in Committee-Based Consensus
Zhuolun Li, Alberto Sonnino, Philipp Jovanovic
We present the first performance comparison of EdDSA and BLS signatures in committee-based consensus protocols through large-scale geo-distributed benchmarks. Contrary to popular b…
Baxos: Backing off for Robust and Efficient Consensus
Pasindu Tennage, Cristina Basescu, Eleftherios Kokoris Kogias +3
Leader-based consensus algorithms are vulnerable to liveness and performance downgrade attacks. We explore the possibility of replacing leader election in Multi-Paxos with random e…
An Empirical Study of DeFi Liquidations: Incentives, Risks, and Instabilities
Kaihua Qin, Liyi Zhou, Pablo Gamito +2
Financial speculators often seek to increase their potential gains with leverage. Debt is a popular form of leverage, and with over 39.88B USD of total value locked (TVL), the Dece…
Reaching Consensus for Asynchronous Distributed Key Generation
Ittai Abraham, Philipp Jovanovic, Mary Maller +3
We give a protocol for Asynchronous Distributed Key Generation (A-DKG) that is optimally resilient (can withstand faulty parties), has a constant expected number of…
Que Sera Consensus: Simple Asynchronous Agreement with Private Coins and Threshold Logical Clocks
Bryan Ford, Philipp Jovanovic, Ewa Syta
It is commonly held that asynchronous consensus is much more complex, difficult, and costly than partially-synchronous algorithms, especially without using common coins. This paper…
Enhancing Bitcoin Security and Performance with Strong Consistency via Collective Signing
Eleftherios Kokoris-Kogias, Philipp Jovanovic, Nicolas Gailly +3
While showing great promise, Bitcoin requires users to wait tens of minutes for transactions to commit, and even then, offering only probabilistic guarantees. This paper introduces…
Keeping Authorities "Honest or Bust" with Decentralized Witness Cosigning
Ewa Syta, Iulia Tamas, Dylan Visher +6
The secret keys of critical network authorities - such as time, name, certificate, and software update services - represent high-value targets for hackers, criminals, and spy agenc…