| Summary: | Internet of Things is rising technology that could inspire the way wireless network access is provided. In IoT, secure data communication has lot of research scope. Especially message authentication, authorization cure path for IoT devices still remains as an open research problem. Some researcher proposed security mechanism without certification, MIC and token but still we didn’t find standard security mechanism for data communication between sensor nodes. In this articleauthor has proposed an Identity based security (IBS) mechanism for IoT devices during data communication in IoT networks. IBS mechanism uses identity-based cryptography (IBC) to avoid certificates, MIC and tokens to minimize the computational overhead. IBS Mechanism is resistant to most common security attacks such as modification, fabrication, replay attacks and it can also protect hop count. It does provide secure data communication between sensor nodes. The results, based on NS-3 simulation, reveal that proposed mechanism is effectively able to protect the black hole attacks. In results, we have shown the packet delivery ratio, quality of services (QoS), and throughput between IBS mechanism, AODV path and AODV with black hole.
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