基于IEEE802.15.4e标准的工业物联网安全时间同步策略

发布时间：2019-07-26 09:29

【摘要】：IEEE802.15.4e是一个面向工业物联网应用的MAC层标准,其采用时间同步关键技术实现高可靠、低功耗的工业无线网络.网络空间中存在各式各样攻击,由于时间同步机制是工业无线网络中的核心支撑技术,其可能成为首选的攻击目标.假如攻击者对时间同步协议发起攻击,破坏节点之间的同步,将导致网络通信、节点定位以及数据融合等方面应用不能正常工作.针对基于IEEE802.15.4e标准的工业物联网中时间同步协议安全性不足问题,提出了一个安全时间同步策略.首先,提出了Sec_ASN算法保护单跳的ASN时间同步和TOF算法保护单跳的Device-to-Device时间同步;其次,提出了Rank-based入侵检测算法保护多跳时间同步;最后通过理论分析和实验测试证明,该安全时间同步策略具有时间同步精度高和开销低特点,并且能有效防御外部攻击和内部攻击.
[Abstract]:IEEE802.15.4e is a MAC layer standard for industrial Internet of things applications. It uses time synchronization key technology to achieve high reliability and low power consumption of industrial wireless networks. There are all kinds of attacks in cyberspace. Because time synchronization mechanism is the core supporting technology in industrial wireless networks, it may become the preferred attack target. If an attacker attacks the time synchronization protocol and destroys the synchronization between nodes, the application of network communication, node location and data fusion will not work properly. In order to solve the problem of insufficient security of time synchronization protocol in industrial Internet of things based on IEEE802.15.4e standard, a security time synchronization strategy is proposed. Firstly, Sec_ASN algorithm to protect single hop ASN time synchronization and TOF algorithm to protect single hop Device-to-Device time synchronization are proposed. Secondly, Rank-based intrusion detection algorithm is proposed to protect multi-hop time synchronization. Finally, through theoretical analysis and experimental test, it is proved that the security time synchronization strategy has the characteristics of high time synchronization accuracy and low overhead, and can effectively defend against external and internal attacks.
【作者单位】：北京科技大学计算机与通信工程学院;江西师范大学软件学院;中国科学院计算机网络信息中心;
【基金】：国家自然科学基金项目(61302065,61304257) 北京市自然科学基金项目(4152036) 中央高校基本科研业务费专项资金(FRFTP-15-026A2)~~
【分类号】：TN929.5;TP391.44

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