Recent literature suggests that the Internet of Things (IoT) scales muchbetter in an Information-Centric Networking (ICN) model instead of the currenthost-centric Internet Protocol (IP) model. In particular, the Named DataNetworking (NDN) project (one of the ICN architecture flavors) offers featuresexploitable by IoT applications, such as stateful forwarding, in- networkcaching, and built-in assurance of data provenance. Though NDN-based IoTframeworks have been proposed, none have adequately and holistically addressedconcerns related to secure onboarding and routing. Additionally, emerging IoTapplications such as smart cities require high scalability and thus pose newchallenges to NDN routing. Therefore, in this work, we propose and evaluate anovel, scalable framework for lightweight authentication and hierarchicalrouting in the NDN IoT (ND- NoT). Our ns-3 based simulation analysesdemonstrate that our framework is scalable and efficient. It supportsdeployment densities as high as 40,000 nodes/km2 with an average onboardingconvergence time of around 250 seconds and overhead of less than 20 KiB pernode. This demonstrates its efficacy for emerging large-scale IoT applicationssuch as smart cities.
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