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This paper proposes PrestigeBFT, a novel leader-based BFT consensus algorithmthat addresses the weaknesses of passive view-change protocols. Passiveprotocols blindly rotate leadership among servers on a predefined schedule,potentially selecting unavailable or slow servers as leaders. PrestigeBFTproposes an active view-change protocol using reputation mechanisms thatcalculate a server's potential correctness based on historic behavior. Theactive protocol enables servers to campaign for leadership by performingreputation-associated work. As such, up-to-date and correct servers with goodreputations are more likely to be elected as leaders as they perform less work,whereas faulty servers with bad reputations are suppressed from becomingleaders by being required to perform more work. Under normal operation,PrestigeBFT achieves 5X higher throughput than the baseline that uses passiveview-change protocols. In addition, PrestigeBFT remains unaffected under benignfaults and experiences only a 24% drop in throughput under a variety ofByzantine faults, while the baseline throughput drops by 62% and 69%,respectively.

PrestigeBFT: Revolutionizing View Changes in BFT Consensus Algorithms with Reputation Mechanisms