南京理工大学学报（自然科学版）2024，Vol.48Issue(2)：175-181,7.DOI:10.14177/j.cnki.32-1397n.2024.48.02.007
基于合约熵判决算法的区块链网络DDoS防御优化
Optimization of blockchain network DDoS defense based on contract entropy judgment algorithm
摘要
Abstract
To better leverage the advantages of blockchain networks in multi-domain collaborative defense against distributed denial of service(DDoS),a smart contract entropy detection(SCED)algorithm is proposed.based on the Hyperledger Fabric blockchain architecture,firstly,a multi-domain collaboration mechanism is built through blockchain smart contract technology,establishing smart contract collaboration sub-algorithms;then,IP blacklists are generated for illegal traffic IP in the victim domain,and all cooperative domains are notified to coordinate defense against DDoS;then,an entropy judgment defense sub-algorithm composed of monitoring,comparison,classification,and defense modules is deployed in each single-domain to detect and process illegal traffic in the domain;finally,coordinated defense against DDoS is achieved in the victim domain,intermediate domain,and attack domain in the blockchain network by combining multi-domain smart contract cooperation and single-domain entropy judgment defense.The simulation results show that,compared with the ChainSecure algorithm and so on,the SCED algorithm has a better performance in terms of accuracy and efficiency.关键词
分布式拒绝服务/区块链/智能合约/信息熵/贝叶斯分类器Key words
distributed denial of service/blockchain/smart contract/information entropy/Bayesian classifier分类
信息技术与安全科学引用本文复制引用
刘云,陈路遥,宋凯,朱鹏俊..基于合约熵判决算法的区块链网络DDoS防御优化[J].南京理工大学学报（自然科学版）,2024,48(2):175-181,7.基金项目
国家自然科学基金(61761025) （61761025）
