Survey on Securing Internet of Things through Block chain Technology

Internet of Things (IoT) has found wider acceptance due to its real-time and high efficient collaboration; Wireless Sensor Network aka WSN is core component for supporting the IoT operation. The security issue is one of the major concerns and several research works have been considered. This research review aims to conduct a critical review of the Blockchain-based WSN) domain. Blockchain-WSN aims to focus on the different aspects of security concerns in a wireless sensor network.. Moreover, the novelty of this research review lies in critical analysis of the adoption of blockchain in WSN in comparison with other research reviews. At first, this paper discusses the WSN and its challenges, especially from the security perspective through exposing the vulnerabilities in WSN. Further, this research review work introduces a blockchain approach review and its integration with conventional WSNs. Furthermore, several existing blockchain-WSN mechanism is reviewed and analyzed. At last limitation and restriction of blockchain-WSN is highlighted that open the research gap for designing the new mechanism for WSN security with blockchain