Comparative Analysis of IoT based Blockchain Secure framework for Various Applications

BlockChain (BC) has attracted a lot of attention, Because of its advanced immutability, security and special protection features. BC may overcome security and protection issues of the Internet of Things (IoT). In every event, BC is computationally expensive, limited flexibility also introduces crucial transfer speed overheads and delays too. Those are unsuitable for the IoT applications. IoT is still in its early stages, but it is expected to have a significant influence on the items we use in day today life. In addition with that the usage of IoT with the lessor security will lead to the malfunctioning of the operations from the external threats. The abusive operations attract every researcher to build up a mechanism to ensure the security of IoT platforms. Since the existing security methods are ineffective in the protection IoT systems, Blockchain is emerging as a potential solution for creating more secured IoT architectures in the future. In this paper, we presented comparative analysis among various applications in which the framework of IoT is based on Blockchain organization, and how they used BC with IoT innovation to achieve the security and other objectives.