Examining the operations of the IoT device protocols

This chapter provides a description of the configurations and architecture of the simulated case. Mainly, the focus is on cyber security elements in an IoT banking environment and how to make the banking system more secure by identifying the various attacks. Finally, the chapter outlines the simulated experiment results on how vulnerable the IoT banking environment is to attacks and how such attacks can be mitigated.
1.1.Scope of the Case Scenario
This research aimed at investigating the operations of the IoT device protocols in a simulated implementation of an edge local cloud computing environment. The basic “HTTP” protocol was chosen because it is the universal protocol used to design and build IoT applications and resources used in IoTs’ communication. To study the performance of the modelled network in figure 4.1, two comparative experiments were conducted, and the server response time was used as the key performance measurement indicator. Subsequently, a python developed script was used to describe how to send the get-requests with session creation servers using aiohttp and asyncio libraries to provide multi-threaded request generation, which has increased the performance of requests per second compared to the traditional urllib libraries. Requests were generated based on the rates of requests made per second between 10 and 50 requests per second with a sequential increment interval of 10 requests. An iperf3 tool was run on both ends of the client-server connection for the duration of the traffic generation to load the communication channel with TCP connections. The client started with the following parameters: 100 concurrent requests and a read/write buffer length of 100 kB. These parameters reflect the actual load from the Internet of Things devices. The duration of each step was 10 min, which minimises the measurement error.
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