Distributed Agreement in the Presence of Processor and Communication Faults
Perry, Kenneth J.; Toueg, Sam
A model of distributed computation is proposed in which processes may fail by not sending or receiving the messages specified by a protocol. The solution to the Byzantine Generals Problem for this model is presented. Our algorithm exhibits early-stopping under conditions of less than maximum failure and is as efficient as the algorithms developed for the more restrictive crash-fault model in terms of time, message, and bit complexity. We show extant models to under-estimate resiliency when faults in the communication medium are considered; the model of this paper is more accurate in this regard.
computer science; technical report
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