ScaNeF-IoT: scalable network fingerprinting for IoT device

Abstract

Recognising IoT devices through network fingerprinting contributes to enhancing the security of IoT networks and supporting forensic activities. Machine learning techniques have been extensively utilised in the literature to optimise IoT fingerprinting accuracy. Given the rapid proliferation of new IoT devices, a current challenge in this field is around how to make IoT fingerprinting scalable, which involves efficiently updating the used machine learning model to enable the recognition of new IoT devices. Some approaches have been proposed to achieve scalability, but they all suffer from limitations like large memory requirements to store training data and accuracy decrease for older devices.

In this paper, we propose ScaNeF-IoT, a novel scalable network fingerprinting approach for IoT devices based on online stream learning and features extracted from fixed-size session payloads. Employing online stream learning allows to update the model without retaining training data. This, alongside relying on fixed-size session payloads, enables scalability without deteriorating recognition accuracy. We implement ScaNeF-IoT by analysing TCP/UDP payloads and utilising the Aggregated Mandrian Forest as the online stream learning algorithm. We provide a preliminary evaluation of ScaNeF-IoT accuracy and how it is affected as the model is updated iteratively to recognise new IoT devices. Furthermore, we compare ScaNeF-IoT accuracy with other IoT fingerprinting approaches, demonstrating that it is comparable to the state of the art and does not worsen as the classifier model is updated, despite not requiring to retain any training data for older IoT devices.

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Identifiers

ORCID for Tadani Nasser Alyahya: orcid.org/0000-0001-8570-5445

ORCID for Leonardo Aniello: orcid.org/0000-0003-2886-8445

ORCID for Vladimiro Sassone: orcid.org/0000-0002-6432-1482

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