SecWIR: Securing smart home IoT communications via wi-fi routers with embedded intelligence

Xinyu Lei, Guan Hua Tu, Chi Yu Li, Tian Xie, Mi Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Smart home Wi-Fi IoT devices are prevalent nowadays and potentially bring significant improvements to daily life. However, they pose an attractive target for adversaries seeking to launch attacks. Since the secure IoT communications are the foundation of secure IoT devices, this study commences by examining the extent to which mainstream security protocols are supported by 40 of the best selling Wi-Fi smart home IoT devices on the Amazon platform. It is shown that 29 of these devices have either no security protocols deployed, or have problematic security protocol implementations. Seemingly, these vulnerabilities can be easily fixed by installing security patches. However, many IoT devices lack the requisite software/hardware resources to do so. To address this problem, the present study proposes a SecWIR (Secure Wi-Fi IoT communication Router) framework designed for implementation on top of the users' existing home Wi-Fi routers to provide IoT devices with a secure IoT communication capability. However, it is way challenging for SecWIR to function effectively on all home Wi-Fi routers since some routers are resource-constrained. Thus, several novel techniques for resolving this implementation issue are additionally proposed. The experimental results show that SecWIR performs well on a variety of commercial off-the-shelf (COTS) Wi-Fi routers at the expense of only a small reduction in the non-IoT data service throughput (less than 8%), and small increases in the CPU usage (4.5%∼7%), RAM usage (1.9 MB∼2.2 MB), and the IoT device access delay (24 ms∼154 ms) while securing 250 IoT devices.

Original languageEnglish
Title of host publicationMobiSys 2020 - Proceedings of the 18th International Conference on Mobile Systems, Applications, and Services
PublisherAssociation for Computing Machinery, Inc
Pages260-272
Number of pages13
ISBN (Electronic)9781450379540
DOIs
StatePublished - 15 Jun 2020
Event18th ACM International Conference on Mobile Systems, Applications, and Services, MobiSys 2020 - Toronto, Canada
Duration: 15 Jun 202019 Jun 2020

Publication series

NameMobiSys 2020 - Proceedings of the 18th International Conference on Mobile Systems, Applications, and Services

Conference

Conference18th ACM International Conference on Mobile Systems, Applications, and Services, MobiSys 2020
CountryCanada
CityToronto
Period15/06/2019/06/20

Keywords

  • IoT
  • Security
  • Smart home
  • Wi-fi

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