【Author】
Mohsenzadeh, Ali; Bidgoly, Amir Jalaly; Farjami, Yaghoub
【Source】COMPUTER COMMUNICATIONS
【Abstract】Distributed ledger technology (DLT) has emerged as a key and effective technology which has caught the attention of variety of disciplines and is capable of changing lots of sciences and related industries. Selecting the transactions of members in DLT-based technologies such as blockchain, especially in finance, is essential and vital. Therefore, in this paper, we present a novel framework for selecting members' transactions through trust and reputation models called the reputation-based consensus framework (RCF), so that by combining trust and reputation models with blockchain, the target node (or verifier), which has the highest reputation based on its transactions history, is selected to create and publish the current block of blockchain. We have also provided a state machine model to accurately describe the behavior of the RCF. In addition, the RCF algorithms are presented and a prototype is developed based on it. The results of simulation and performance and security analysis proved that RCF leads to fair selection of transactions, improves scalability and throughput, and can resist against attacks such as Sybil and malicious behaviors.
【Keywords】Distributed ledger technology; Blockchain; Consensus mechanisms; Framework; Trust and reputation models
【标题】分布式账本技术中一种新颖的基于信誉的共识框架（RCF）
【摘要】分布式账本技术（DLT）已成为一项关键且有效的技术，引起了各学科的关注，并能够改变许多科学和相关行业。在区块链等基于 DLT 的技术中选择成员的交易，尤其是在金融领域，是必不可少的。因此，在本文中，我们提出了一种通过信任和声誉模型选择成员交易的新框架，称为基于声誉的共识框架（RCF），通过将信任和声誉模型与区块链相结合，目标节点（或验证者） ，根据其交易历史具有最高声誉，被选为创建和发布当前区块链区块。我们还提供了一个状态机模型来准确描述 RCF 的行为。此外，还提出了RCF算法，并在此基础上开发了原型。仿真和性能和安全分析的结果证明，RCF导致交易的公平选择，提高了可扩展性和吞吐量，并且可以抵抗Sybil和恶意行为等攻击。
【关键词】分布式账本技术；区块链；共识机制；框架;信任和声誉模型
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