摘要
针对Hyperledger Fabric使用固定背书节点处理交易所带来的安全风险和性能瓶颈问题,提出了一种非交互、可验证的随机化背书节点优化方案.基于“背书−排序−验证”的Hyperledger fabric共识模型,引入背书节点候选集,使用可验证随机函数随机抽取背书节点进行交易背书,实现了背书节点的非交互式可验证随机选取和背书过程的并行处理.分析和实验表明,优化后的共识机制具有更高的安全性和更快的交易处理速度.
To solve the problem of the security risk and processing bottleneck caused by handling all transactions with a fixed endorsement node in hyperledger fabric,a non-interactive and verifiable randomized endorsement scheme is proposed.On the basis of the“endorse-sort-verify”consensus mechanism,the non-interactive and verifiable random selection of the endorsement node and the parallel endorsement process are implemented by introducing the endorsement node candidate set and using the verifiable random function to randomly extract the endorsement node to endorse each transaction.Analysis and experiments show that the optimized consensus mechanism has higher security and faster transaction processing speed.
作者
孟吴同
张大伟
MENG Wu-Tong;ZHANG Da-Wei(Beijing Key Laboratory of Security and Privacy in Intelligent Transportation,Beijing 100044;School of Computer and Information Technology,Beijing Jiaotong University,Beijing 100044)
出处
《自动化学报》
EI
CAS
CSCD
北大核心
2021年第8期1885-1898,共14页
Acta Automatica Sinica
基金
国家留学基金(201807095023)资助。
