基于委员会轮换机制的跨链数据整合技术研究  

Research on cross-chain data integration technology based on committee rotation mechanism

作　　者：许倩 翟健宏[2] XU Qian;ZHAI Jianhong(Faculty of Computing,Harbin Institute of Technology,Harbin 150001,China;Department of Cyberspace Security,Faculty of Computing,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]哈尔滨工业大学计算学部,哈尔滨150001 [2]哈尔滨工业大学计算学部网络空间安全系,哈尔滨150001

出　　处：《智能计算机与应用》2023年第1期213-220,F0003,共9页Intelligent Computer and Applications

摘　　要：随着区块链技术的发展,区块链的应用场景也不断丰富和复杂,而能够进行高效安全的跨链操作是区块链技术大规模落地应用的必备条件,因为不同区块链网络可以拥有不同协议和架构,造成不同区块链之间难以跨链操作。本文在研究已有的跨链技术的基础上,结合信任度评价的思想,设计基于委员会轮换机制的跨链数据整合方案,为跨链技术的研究提供一个新的解决思路。方案设计动态信任模型,引入遗忘机制,对信任随时间的变化进行建模;以节点的信任度为标准选举委员会成员,作为跨链消息传输媒介;同时,本文参考PBFT共识算法的思想设计了基于距离的消息验证机制,委员会成员通过基于距离的消息验证机制对消息进行验证和签名,达成一致。With the development of blockchain technology, the application scenarios of blockchain are constantly enriched and complex, and a safe and efficient cross-chain operation is a prerequisite for the large-scale application of blockchain technology. However, because different blockchain networks can have different protocols and architectures, different blockchains are isolated from each other, making it difficult to perform cross-chain operations. Based on the research of existing cross-chain technologies, this paper proposes a new cross-chain consensus algorithm and designs a cross-chain data integration scheme based on committee rotation mechanism by combining the idea of trust evaluation, which provides a new solution for the research of cross-chain technology. This paper designs a dynamic trust evaluation model that introduces the forgetting mechanism, and the trust model over time. The committee members are elected as cross-chain message transmission mediums based on the dynamic trust degree of the network nodes. At the same time, this paper designs a distance-based message verification mechanism with reference to the idea of PBFT consensus algorithm. Committee members verify and sign messages through this message verification mechanism and reach a consensus.

关 键 词：跨链技术 共识算法 遗忘机制 信任模型 委员会轮换机制 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]