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Revisiting Fast Practical Byzantine Fault Tolerance

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arxiv 1712.01367 v1 pith:CC2VIIA2 submitted 2017-12-04 cs.DC

Revisiting Fast Practical Byzantine Fault Tolerance

Ittai Abraham , Guy Gueta , Dahlia Malkhi , Lorenzo Alvisi , Rama Kotla , Jean-Philippe Martin This is my paper
classification cs.DC
keywords violationalreadybyzantinechangesdemonstratefastfaultfirst
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this note, we observe a safety violation in Zyzzyva and a liveness violation in FaB. To demonstrate these issues, we require relatively simple scenarios, involving only four replicas, and one or two view changes. In all of them, the problem is manifested already in the first log slot.

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    Multimmit finalises transaction blocks in one voting round with roughly 3δ average latency from dissemination, confining a faulty producer's damage to its own chain.