Byzantine fault-tolerant (BFT) state-machine replication makes it possible to design systems
that are resilient against arbitrary faults, a requirement considered crucial for an increasing …

The highly anticipated 5G network is projected to be introduced in 2020. 5G stakeholders
are unanimous that densification of mobile networks is the way forward. The densification …

The secret keys of critical network authorities--such as time, name, certificate, and software
update services--represent high-value targets for hackers, criminals, and spy agencies …

Our growing reliance on online services accessible on the Internet demands highly
available systems that provide correct service without interruptions. Software bugs, operator …

We present two asynchronous Byzantine fault-tolerant state machine replication (BFT)
algorithms, which improve previous algorithms in terms of several metrics. First, they require …

Byzantine Fault-Tolerant (BFT) protocols cover a broad spectrum of design dimensions from
infrastructure settings, such as the communication topology, to more technical features, such …

Byzantine agreement requires a set of parties in a distributed system to agree on a value
even if some parties are corrupted. A new protocol for Byzantine agreement in a completely …

The security model relying on the traditional defense of the perimeter cannot protect modern
dynamic organizations. The emerging paradigm called zero trust proposes a modern …

A fault-scalable service can be configured to tolerate increasing numbers of faults without
significant decreases in performance. The Query/Update (Q/U) protocol is a new tool that …

We describe a new architecture for Byzantine fault tolerant state machine replication that
separates agreement that orders requests from execution that processes requests. This …