基于信誉度的主从多链区块链共识机制

Master-slave multiple-blockchain consensus based on credibility

针对单一区块链系统的性能局限性、多链系统跨链共识困境以及数据分布挑战问题,该文提出了一种主从多链的共识机制。设计了2层区块链结构以构建主从多链。通过主区块链链接多条从区块链,保证了数字化资产的全局一致性,提高了区块链的性能。将信誉度评估引入基于权益证明的共识机制中,提高了交易的吞吐量。设计了多共识机制融合的联合共识机制,确保数据的一致性和不可篡改性。通过生成动态验证节点,确保节点的去中心化和防止恶意攻击。相比传统的以太坊(ETH)区块链,仿真实验结果表明每秒事务处理量(TPS)提升了约48%,拥有高权益节点的恶意行为将受到更严重的惩罚,证明了主从多链设计在应对权益粉碎攻击、贿赂攻击等方面具有安全性高、事务处理快的优势。

In view of the performance limitations of single blockchain system,cross chain consensus dilemma of multichain system and data distribution challenges,a master-slave multichain consensus mechanism is proposed here.A two-tier blockchain structure is designed to build a master-slave multichain.The master blockchain links multiple slave blockchains,which ensures the global consistency of digital assets and improves the performance of the blockchain.The reputation evaluation is introduced into the consensus mechanism based on proof of equity,which improves the throughput of transactions.A joint consensus mechanism is designed to ensure the consistency and non tamperability of data.By generating dynamic verification nodes,node decentralization is ensured,and malicious attacks are prevented.Compared with the traditional ethereum(ETH)blockchain,the simulation results show that the transaction per second(TPS)is increased by about 48%,and malicious behaviors of nodes with high rights and interests are punished more seriously,which proves that the master-slave multichain design has the advantages of high security and fast transaction processing in dealing with rights smashing attack,bribery attack,etc.