Wei Yinzhen, Xu Qian, Peng Hong
School of Computer, Wuhan Vocational College of Software and Engineering, Wuhan, 430070, China.
School of Computer, Huanggang Normal University, Huanggang, 438000, China.
Sci Rep. 2024 Jul 31;14(1):17701. doi: 10.1038/s41598-024-68120-4.
Consensus plays a crucial role in blockchain technology, with the deleted proof of stake (DPoS) consensus mechanism commonly utilized in both public and hybrid chains. However, the current DPoS mechanism faces challenges such as low node engagement in voting and potential security risks posed by malicious nodes. In response, we propose the DL-DPoS (deep link-delegated proof of stake) mechanism, which builds upon the DPoS framework. The DL-DPoS incorporates the LINK incentive mechanism to encourage inactive nodes to participate in voting and leader selection. Furthermore, a comprehensive credit scoring system based on wealth, performance, and stability is introduced to enhance the security of elected nodes. The verification process is optimized to involve all nodes except the leader node, and mechanisms are in place to handle malicious attacks by degrading or removing offending nodes and redistributing their responsibilities to the LINK group. Performance testing of the DL-DPoS mechanism, conducted through blockchain simulation tests using the GO language, shows a 23% increase in throughput compared to DPoS, with over 95% node participation and improved distribution of rights and equity. These results indicate the enhanced performance, security, and stability of the DL-DPoS consensus mechanism.
共识在区块链技术中起着至关重要的作用，权益证明（DPoS）共识机制的删减版在公链和混合链中均有广泛应用。然而，当前的DPoS机制面临诸如投票中节点参与度低以及恶意节点带来的潜在安全风险等挑战。对此，我们提出了DL-DPoS（深度链接委托权益证明）机制，该机制基于DPoS框架构建。DL-DPoS纳入了LINK激励机制，以鼓励不活跃节点参与投票和领导者选择。此外，引入了一个基于财富、性能和稳定性的综合信用评分系统，以增强当选节点的安全性。验证过程得到优化，除领导者节点外的所有节点都参与其中，并且制定了相关机制来处理恶意攻击，即通过降低或移除违规节点并将其职责重新分配给LINK组。通过使用GO语言进行区块链模拟测试对DL-DPoS机制进行性能测试，结果表明与DPoS相比，吞吐量提高了23%，节点参与率超过95%，权利和权益分配得到改善。这些结果表明DL-DPoS共识机制的性能、安全性和稳定性得到了增强。
