In recent years, the Internet of Things (IoT) has been proliferating in various fields,
such as health care, smart city, and connected autonomous vehicles. Accompanying
the popularity of IoT are security attacks that exploit the vulnerabilities of many IoT
devices. To build IoT anomaly detection systems, we need to collect and label a large
amount data from diverse IoT scenarios, which is a time-consuming and prohibitive
task if without the support of an IoT testbed. This thesis fills this urgent need by
developing a scalable, flexible, safe, and secure IoT testbed.
To make the testbed scalable, we need to reduce the hardware cost and make
its architecture easily extendable. For this, we build a hybrid testbed consisting of
real IoT devices, such as motion sensors and smart cameras, and emulated devices
with Raspberry Pi. The emulated devices can replace real IoT devices with the same
operational behaviour as real IoT devices but at a much lower price. Flexibility means
the testbed can easily simulate different application scenarios. To make the testbed
flexible, we build a dedicated data management module to facilitate the complex
tasks in generating diverse traffic patterns, reproducing security attacks, collecting,
visualizing, and analyzing network traffic. Testbed safety means the testbed will
not cause any adverse impact to the Internet, and testbed security means protecting
it from outside attacks. For safety, we carefully analyze the source code and the
behaviour of launched attacks and configure a traffic filter to strictly contain the
attack traffic within the testbed. For security, we scan and analyze the security of all
IoT devices within the testbed to ensure no exposed vulnerability in the used devices. / Graduate
| Identifer | oai:union.ndltd.org:uvic.ca/oai:dspace.library.uvic.ca:1828/14109 |
| Date | 19 August 2022 |
| Creators | Zhao, Zhengan |
| Contributors | Wu, Kui |
| Source Sets | University of Victoria |
| Language | English, English |
| Detected Language | English |
| Type | Thesis |
| Format | application/pdf |
| Rights | Available to the World Wide Web |
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