摘要： 移动边缘计算技术被广泛应用于实时性强和带宽密集型业务，但其底层的异构体系结构可能会导致多种安全及隐私问题。区块链技术的去中心化、防篡改和匿名性等特性为移动边缘计算系统提供了新的可信计算范式，使其在分布式环境中实现无可信第三方的交易认证与信息记录，可保障数据在采集、传输、存储及计算过程中的安全性。针对边缘计算中的安全隐私保护、资源管理等关键问题，阐述面向移动边缘计算的区块链技术在数据安全、隐私保护、身份认证、访问控制、计算迁移和网络管理方面的研究及应用现状，归纳总结内容分发网络、智慧城市、智慧医疗等移动边缘计算场景下应用区块链技术的具体方式及性能优势，并对其未来研究及应用前景进行展望。

关键词: 移动边缘计算, 区块链, 安全性, 资源管理, 网络管理

Abstract: Mobile Edge Computing(MEC) technology has been widely used in services that require high real-time performance and intensive bandwidth resources,but the heterogeneous underlying infrastructure leads to multiple security and privacy issues.The decentralization,tamper proofing and anonymity of blockchain technology,however,can provide MEC systems with a new trusted computing paradigm,which enables transaction authentication without a trusted third party and information records in distributed environment,protecting the security of data in collection,transmission,storage and computing.Focused on key issues in edge computing such as security,privacy protection and resource management,this paper reviews the applications and technology of blockchain in MEC,with regard to data security,privacy protection,identity authentication,access control,computing migration,and network management.Furthermore,this paper summarizes the ways of blockchain technology is applied in edge computing scenarios,including Content Distribution Network(CDN),smart cities,and smart healthcare,and lists the advantages of blockchain technology.Finally,this paper shows the possible research directions and applications of blockchain technology in MEC.

Key words: Mobile Edge Computing(MEC), blockchain, security, resource management, network management

中图分类号: 

• TP399