The emergence of numerous consensus algorithms for distributed systems has resulted from
the swift advancement of blockchain and its related technologies. Consensus algorithms …

A blockchain is a distributed system that achieves strong security guarantees in storing,
managing, and processing data. All blockchains achieve a common goal: building a …

Blockchain is the technology used by developers of cryptocurrencies, like Bitcoin, to enable
exchange of financial “coins” between participants in the absence of a trusted third party to …

This paper studies dynamic BFT, where replicas can join and leave the system dynamically,
a primitive that is nowadays increasingly needed. We provide a formal treatment for dynamic …

As the first Byzantine fault-tolerant (BFT) protocol with linear communication complexity,
HotStuff (PODC 2019) has received significant attention. HotStuff has three round-trips for …

We present Poligraph, an intrusion-tolerant and decentralized fake news detection system.
Poligraph aims to address architectural, system, technical, and social challenges of building …

For a large number of network attacks, feature selection is used to improve intrusion
detection efficiency. A new mutual information algorithm of the redundant penalty between …

We revisit the problem of preserving causality in Byzantine fault-tolerant (BFT) atomic
broadcast protocols, a requirement first proposed by Reiter and Birman (TOPLAS 1994) …

Byzantine Fault Tolerant (BFT) state machine replication protocols are used to achieve
agreement among replicated servers with arbitrary faults. Most existing BFT protocols …

Blockchain as an enabler to current Internet infrastructure has provided many unique
features and revolutionized current distributed systems into a new era. Its decentralization …