Speculative {Denial-of-Service} Attacks In Ethereum

A Yaish, K Qin, L Zhou, A Zohar, A Gervais - 33rd USENIX security …, 2024 - usenix.org
Transaction fees compensate actors for resources expended on transactions and can only
be charged from transactions included in blocks. But, the expressiveness of Turing-complete …

Uncle maker:(time) stamping out the competition in ethereum

A Yaish, G Stern, A Zohar - Proceedings of the 2023 ACM SIGSAC …, 2023 - dl.acm.org
We present and analyze an attack on Ethereum 1's consensus mechanism, which allows
miners to obtain higher mining rewards compared to their honest peers. This attack is novel …

Airdrops: Giving money away is harder than it seems

J Messias, A Yaish, B Livshits - arXiv preprint arXiv:2312.02752, 2023 - arxiv.org
Airdrops are used by blockchain applications and platforms to attract an initial user base,
and to grow the user base over time. In the case of many airdrops, tokens are distributed to …

Thinking fast and slow: Data-driven adaptive defi borrow-lending protocol

M Bastankhah, V Nadkarni, X Wang, C Jin… - arXiv preprint arXiv …, 2024 - arxiv.org
Decentralized finance (DeFi) borrowing and lending platforms are crucial to the
decentralized economy, involving two main participants: lenders who provide assets for …

TierDrop: Harnessing Airdrop Farmers for User Growth

A Yaish, B Livshits - arXiv preprint arXiv:2407.01176, 2024 - arxiv.org
Blockchain platforms attempt to expand their user base by awarding tokens to users, a
practice known as issuing airdrops. Empirical data and related work implies that previous …

Contagion in Decentralized Lending Protocols: A Case Study of Compound

N Tovanich, M Kassoul, S Weidenholzer… - Proceedings of the 2023 …, 2023 - dl.acm.org
We study financial contagion in Compound V2, a decentralized lending protocol deployed
on the Ethereum blockchain. We explain how to construct the balance sheets of …

AgileRate: Bringing Adaptivity and Robustness to DeFi Lending Markets

M Bastankhah, V Nadkarni, X Wang… - arXiv preprint arXiv …, 2024 - arxiv.org
Decentralized Finance (DeFi) has revolutionized lending by replacing intermediaries with
algorithm-driven liquidity pools. However, existing platforms like Aave and Compound rely …

The Power of Default: Measuring the Effect of Slippage Tolerance in Decentralized Exchanges

N Chemaya, D Liu, R McLaughlin, N Ruaro… - Available at SSRN …, 2023 - papers.ssrn.com
In recent years, we have seen the growth of decentralized finance (DeFi), an ecosystem of
financial applications and protocols that enable complex, automated, permissionless …

Harvesting Layer-2 Yield: Suboptimality in Automated Market Makers

K Gogol, M Schneider, B Livshits - arXiv preprint arXiv:2410.10324, 2024 - arxiv.org
Layer-2 (L2) blockchains offer security guarantees for Ethereum while reducing transaction
(gas) fees, and consequentially are gaining popularity among traders at Automated Market …

Incentives in the Ether: Practical Cryptocurrency Economics & Security

A Yaish - Companion Proceedings of the ACM on Web …, 2024 - dl.acm.org
Cryptocurrencies are becoming increasingly important for the modern economy. Prior
literature focuses on aligning actor incentives to ensure the secure and efficient operation of …