SBFT is a state of the art Byzantine fault tolerant state machine replication system that
addresses the challenges of scalability, decentralization and global geo-replication. SBFT is …

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 Zyzzyva, a protocol that uses speculation to reduce the cost and simplify the
design of Byzantine fault tolerant state machine replication. In Zyzzyva, replicas respond to a …

This paper argues for a new approach to building Byzantine fault tolerant replication
systems. We observe that although recently developed BFT state machine replication …

A longstanding vision in distributed systems is to build reliable systems from unreliable
components. An enticing formulation of this vision is Byzantine Fault-Tolerant (BFT) state …

We present the first protocol that reaches asynchronous Byzantine consensus in two
communication steps in the common case. We prove that our protocol is optimal in terms of …

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

Researchers have made great strides in improving the fault tolerance of both centralized
and replicated systems against arbitrary (Byzantine) faults. However, there are hard limits to …

This paper describes a general approach to constructing cooperative services that span
multiple administrative domains. In such environments, protocols must tolerate both …

Antivirus software is one of the most widely used tools for detecting and stopping malicious
and unwanted files. However, the long term effectiveness of traditional host-based antivirus …