75 citations · 246 across the 26 of their papers we have counts for
8 papers · 1 filter
No Place to Hide: An Analysis on Protected Order Flow Sandwich Attacks
Lioba Heimbach, Ozan Solmaz, Burak Öz +1
Front-running has long plagued Ethereum's public mempool, earning it the nickname of a "dark forest", where predators lurk for profitable transactions. In response, Ethereum and ot…
Censorship-Resistant Sealed-Bid Auctions on Blockchains
Orestis Alpos, Lioba Heimbach, Kartik Nayak +1
Auctions are now central to blockchain markets, settling NFT sales, token launches, DeFi liquidations, and arbitrage opportunities. Each on-chain bid is a public transaction whose…
Deanonymizing Ethereum Validators: The P2P Network Has a Privacy Issue
Lioba Heimbach, Yann Vonlanthen, Juan Villacis +2
Many blockchain networks aim to preserve the anonymity of validators in the peer-to-peer (P2P) network, ensuring that no adversary can link a validator's identifier to the IP addre…
Benchmarking GNNs Using Lightning Network Data
Rainer Feichtinger, Florian Grötschla, Lioba Heimbach +1
The Bitcoin Lightning Network is a layer 2 protocol designed to facilitate fast and inexpensive Bitcoin transactions. It operates by establishing channels between users, where Bitc…
SoK: Attacks on DAOs
Rainer Feichtinger, Robin Fritsch, Lioba Heimbach +2
Decentralized Autonomous Organizations (DAOs) are blockchain-based organizations that facilitate decentralized governance. Today, DAOs not only hold billions of dollars in their tr…
DeFi and NFTs Hinder Blockchain Scalability
Lioba Heimbach, Quentin Kniep, Yann Vonlanthen +1
Many classical blockchains are known to have an embarrassingly low transaction throughput, down to Bitcoin's notorious seven transactions per second limit.Various proposals and imp…
Short Squeeze in DeFi Lending Market: Decentralization in Jeopardy?
Lioba Heimbach, Eric G. Schertenleib, Roger Wattenhofer
Anxiety levels in the Aave community spiked in November 2022 as Avi Eisenberg performed an attack on Aave. Eisenberg attempted to short the CRV token by using funds borrowed on the…
SoK: Preventing Transaction Reordering Manipulations in Decentralized Finance
Lioba Heimbach, Roger Wattenhofer
User transactions on Ethereum's peer-to-peer network are at risk of being attacked. The smart contracts building decentralized finance (DeFi) have introduced a new transaction orde…