Byzantine Fault Tolerance (BFT) Consensus protocols with trusted hardware assistance
have been extensively explored for their improved resilience to tolerate more faulty …

State-machine replication protocols represent the foundation of many fault-tolerant services.
Unfortunately, their inherent complexity makes existing implementations notoriously difficult …

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

Of independent interest, we show that both the PoR and PoE functionalities can also be
obtained by interactive protocols, using any threshold signature scheme in a black box …

Minimizing end-to-end latency in geo-replicated systems usually makes it necessary to
compromise on resilience, resource efficiency, or throughput performance, because existing …

We remove the so far quadratic bit communication cost of three desirable properties of
consensus protocols with leaders: Responsiveness with Optimal latency, Optimistic Fast …