Providing reliability and auditability to the IoT LwM2M protocol through Blockchain
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Blockchain has come to provide transparency, reliability as well as to increase the security in computer systems, especially in distributed ones like the Internet of Things (IoT). A few integrations have been proposed in this context so far; however, most of these solutions do not pay special attention to the interoperability of the IoT, one of the biggest challenges in this field. In this paper, a Blockchain solution has been integrated into the OMA Lightweight M2M (LwM2M), a promising industry IoT protocol for global interoperability. This integration provides reliability and auditability to the LwM2M protocol enabling IoT devices (LwM2M clients) to transparently interact with the protocol. Furthermore, a missing reliable API to allow users and applications to securely interact with the system and an interface to store critical information like anomalies for auditability have been defined.
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