A Markov Decision Process analysis shows that chained BFT protocols (2CHS, CHS, Streamlet, Fast-HotStuff) have zero attack threshold for leadership democracy, and proposed countermeasures can raise the threshold to about 0.285 Byzantine nodes for 2CHS/CHS, while Fast-HotStuff becomes optimally…
Accountability and Forensics in Blockchains: XDC Consensus Engine DPoS 2.0
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This document introduces XinFin DPoS 2.0, the proposed next generation decentralized consensus engine for the XinFin XDC Network. Built upon the most advanced BFT consensus protocol, this upgrade will empower the XDC Network with military-grade security and performance while consuming extremely low resources, and will be fully backwards-compatible in terms of APIs. It will also pave the road to the future evolution of the XDC Network. The core invention is the holistic integration of accountability and forensics in blockchains: the ability to identify malicious actors with cryptographic integrity directly from the blockchain records, incorporating the latest peer-reviewed academic research with state of the art engineering designs and implementation plans.
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Leader Rotation Is Not Enough: Scrutinizing Leadership Democracy of Chained BFT Consensus
A Markov Decision Process analysis shows that chained BFT protocols (2CHS, CHS, Streamlet, Fast-HotStuff) have zero attack threshold for leadership democracy, and proposed countermeasures can raise the threshold to about 0.285 Byzantine nodes for 2CHS/CHS, while Fast-HotStuff becomes optimally…