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Ripple+:An Improved Scheme of Ripple Consensus protocol in Deployability,Liveness and Timing Assumption

Computer Modeling in Engineering & Sciences 2022年第1期130卷 463-481页

作者： Chuanwang Ma Yu Zhang Binxing Fang Hongli Zhang Yidong Jin Dasheng Zhou School of Cyberspace Science Harbin Institute of TechnologyHarbin150001China Peng Cheng Laboratory Shenzhen518055China Beijing Jingning Data Technology Co. Ltd.Beijing100007China

Ripple acts as a real-time settlement and payment system to connect banks and payment *** the consensus support of the Ripple network to ensure network consistency,Ripple consensus protocol has been widely concerned in recent *** with those byzantine fault tolerant protocols,Ripple has a significant difference that the system can reach an agreement under decentralized trust ***,Ripple has many problems both in theory and practice,which arementioned in the previous *** paper presents Ripple+,an improved scheme of Ripple consensus protocol,which improves Ripple fromthree aspects:(1)Ripple+employs a specific trustmodel and a corresponding guideline for Unique Node List selection,which makes it easy to deploy in practice to meet the safety and liveness condition;(2)the primary and viewchangemechanismare joined to solve the problem discussed by the previous research that Ripple may lose liveness in some extreme scenarios;(3)we remove the strong synchrony clock and timeout during consensus periods to make it suitable for weak synchrony *** implemented a prototype of Ripple+and conducted experiments to show that Ripple+can achieve the throughput of tens of thousands of transactions per second with no more than half a minute latency,and the view change mechanism hardly incurs additional cost.

关键词： Ripple consensus decentralized trust byzantine fault tolerant protocol

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