Security in Edge Blockchains:Attacks and Countermeasures  

作　　者：CAO Yinfeng CAO Jiannong WANG Yuqin WANG Kaile LIU Xun 

机构地区：[1]Department of Computing,The Hong Kong Polytechnic University,Hong Kong SAR 852,China

出　　处：《ZTE Communications》2022年第4期3-14,共12页中兴通讯技术（英文版）

基　　金：supported by the Research Institute for Artificial Intelligence of Things,The Hong Kong Polytechnic University,HK RGC Collaborative Research Fund(CRF)under Grant No.C2004-21GF.

摘　　要：Edge blockchains,the blockchains running on edge computing infrastructures,have attracted a lot of attention in recent years.Thanks to data privacy,scalable computing resources,and distributed topology nature of edge computing,edge blockchains are considered promising solutions to facilitating future blockchain applications.However,edge blockchains face unique security issues caused by the de⁃ployment of vulnerable edge devices and networks,including supply chain attacks and insecure consensus offloading,which are mostly not well studied in previous literature.This paper is the first survey that discusses the attacks and countermeasures of edge blockchains.We first summarize the three-layer architecture of edge blockchains:blockchain management,blockchain consensus,and blockchain lightweight cli⁃ent.We then describe seven specific attacks on edge blockchain components and discuss the countermeasures.At last,we provide future re⁃search directions on securing edge blockchains.This survey will act as a guideline for researchers and developers to design and implement se⁃cure edge blockchains.

关 键 词：blockchain edge computing SECURITY SURVEY 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]