Abstract
Recent growth in the Internet of Things (IoT) looks promising for realizing a smart environment of the future. However, concerns about the security of IoT devices are escalating as they are inherently constrained by limited resources, heterogeneity, and lack of standard security controls or protocols. Due to their inability to support state-of-the-art secure network protocols and defense mechanisms, standard security solutions are unsuitable for dynamic IoT environments that require large and smart IoT infrastructure deployments. At present, the IoT based smart environment deployments predominantly use cloud-centric approaches to enable continuous and on-demand data exchange that leads to further security and privacy risks. While standard security protocols, such as Virtual Private Networks (VPNs), have been explored for certain IoT environments recently, the implementation models reported have several variations and are not practically scalable for any dynamically scalable IoT deployment. This paper addresses current drawbacks in providing the required flexibility, interoperability, scalability, and low-cost practical viability of a secure IoT infrastructure. We propose an adaptive end-to-end security model that supports the defense requirements for a scalable IoT infrastructure. With low-cost embedded controllers, such as the Raspberry Pi, allowing for the convergence of more sophisticated networking protocols to be embedded at the IoT monitoring interface, we propose a scalable IoT security model integrating both the IoT devices and the controller as one embedded device. Our approach is unique, with a focus on the integration of a security protocol at the embedded interface. In addition, we demonstrate a prototype implementation of our IoT security model for a smart water monitoring system. We believe that our modest first step would instill future research interests in this direction.
Highlights
An unprecedented recent expansion in the digital environment is attributed to the advanced use of the internet leveraged by smart devices that have grown rapidly [1,2]
The aim of this paper is to propose a scalable Internet of Things (IoT) security model to establish a practically viable large IoT infrastructure by uniquely adopting a convergence between the state-of-the-art knowledge surrounding two separate aspects: (i) A popular security protocol, such as Virtual Private Networks (VPNs), and (ii) the IoT devices
This paper has proposed a unique solution specific to IoT and demonstrates how this is implemented as a convergence of IoT devices, VPN client/server security, and mobile phone apps to configure, monitor, and control an IoT environment in a secure manner
Summary
An unprecedented recent expansion in the digital environment is attributed to the advanced use of the internet leveraged by smart devices (e.g., sensors, actuators, smartphones, smart appliances, wearables) that have grown rapidly [1,2]. This paradigm shift, termed as the internet of Things (IoT), connects people (end-users) to everything, including systems, machines, and devices with more and more internet-based IoT applications becoming available in everyday life [3,4].
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