4 papers
CoBRA: A Universal Strategyproof Confirmation Protocol for Quorum-based Proof-of-Stake Blockchains
Zeta Avarikioti, Eleftherios Kokoris Kogias, Ray Neiheiser +1
The security of many Proof-of-Stake (PoS) payment systems relies on quorum-based State Machine Replication (SMR) protocols. While classical analyses assume purely Byzantine faults,…
Wonderboom -- Efficient, and Censorship-Resilient Signature Aggregation for Million Scale Consensus
Zeta Avarikioti, Ray Neiheiser, Krzysztof Pietrzak +1
Over the last years, Ethereum has evolved into a public platform that safeguards the savings of hundreds of millions of people and secures more than $650 billion in assets, placing…
CHIRON: Accelerating Node Synchronization without Security Trade-offs in Distributed Ledgers
Ray Neiheiser, Arman Babaei, Giannis Alexopoulos +2
Blockchain performance has historically faced challenges posed by the throughput limitations of consensus algorithms. Recent breakthroughs in research have successfully alleviated…
Anthemius: Efficient & Modular Block Assembly for Concurrent Execution
Ray Neiheiser, Eleftherios Kokoris-Kogias
Many blockchains such as Ethereum execute all incoming transactions sequentially significantly limiting the potential throughput. A common approach to scale execution is parallel e…