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
刘云 1陈路遥 1宋凯 1朱鹏俊1
作者信息
- 1. 昆明理工大学信息工程与自动化学院,云南昆明 650500
- 折叠
摘要
为针对多域协同联合防御分布式拒绝服务(DDoS)更有效发挥区块链网络优势,该文提出智能合约熵检测(SCED)算法.基于Hyperledger Fabric区块链架构,首先,通过智能合约技术构建多域协作机制,建立智能合约协作子算法;然后,针对受害域内非法流量IP生成IP黑名单,并通知所有协作域,协同防御DDoS;其次,在各单域内部署由监测、比对、分类及防御模块组成的熵判决防御子算法,检测处理域内非法流量;最后,结合多域智能合约协作和单域熵判决防御,实现区块链网络中受害域、中间域及攻击域协同防御DDoS.仿真结果表明,对比ChainSecure等算法,SCED算法在精度和效率方面有较好的表现.
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引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据