Request pattern change-based cache pollution attack detection and defense in edge computing

作     者：Junwei Wang Xianglin Wei Jianhua Fan Qiang Duan Jianwei Liu Yangang Wang Junwei Wang;Xianglin Wei;Jianhua Fan;Qiang Duan;Jianwei Liu;Yangang Wang

作者机构：The 63rd Research InstituteNational University of Defense TechnologyNanjing210007China 

出 版 物：《Digital Communications and Networks》 (数字通信与网络（英文版）)

年 卷 期：2023年第9卷第5期

页      面：1212-1220页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统] 

主　　题：Mobile edge computing Cache pollution attack Flash crowd 

摘      要：Through caching popular contents at the network edge,wireless edge caching can greatly reduce both the content request latency at mobile devices and the traffic burden at the core ***,popularity-based caching strategies are vulnerable to Cache Pollution Attacks(CPAs)due to the weak security protection at both edge nodes and mobile *** CPAs,through initiating a large number of requests for unpopular contents,malicious users can pollute the edge caching space and degrade the caching *** paper firstly integrates the dynamic nature of content request and mobile devices into the edge caching framework,and introduces an eavesdroppingbased CPA ***,an edge caching mechanism,which contains a Request Pattern Change-based Cache Pollution Detection(RPC2PD)algorithm and an Attack-aware Cache Defense(ACD)algorithm,is proposed to defend against *** results show that the proposed mechanism could effectively suppress the effects of CPAs on the caching performance and improve the cache hit ratio.