34 citations · 85 across the 18 of their papers we have counts for
4 papers · 1 filter
Longest Chain Consensus Under Bandwidth Constraint
Joachim Neu, Srivatsan Sridhar, Lei Yang +2
Spamming attacks are a serious concern for consensus protocols, as witnessed by recent outages of a major blockchain, Solana. They cause congestion and excessive message delays in…
Information Dispersal with Provable Retrievability for Rollups
Kamilla Nazirkhanova, Joachim Neu, David Tse
The ability to verifiably retrieve transaction or state data stored off-chain is crucial to blockchain scaling techniques such as rollups or sharding. We formalize the problem and…
Three Attacks on Proof-of-Stake Ethereum
Caspar Schwarz-Schilling, Joachim Neu, Barnabé Monnot +3
Recently, two attacks were presented against Proof-of-Stake (PoS) Ethereum: one where short-range reorganizations of the underlying consensus chain are used to increase individual…
The Availability-Accountability Dilemma and its Resolution via Accountability Gadgets
Joachim Neu, Ertem Nusret Tas, David Tse
For applications of Byzantine fault tolerant (BFT) consensus protocols where the participants are economic agents, recent works highlighted the importance of accountability: the ab…