Abstract
AbstractNowadays, Wireless Sensor Networks (WSNs) are facing various challenges. Cost efficiency, low energy consumption, reliable data communication between nodes and security are the major challenges in the field of WSNs. On the other hand, blockchain is also a very hot domain in this era. Blockchain has a remedy for some challenges, which are faced by the WSNs, e.g., secure data transactions and trustworthiness, etc. By keeping in mind the security issues, we induce blockchain into the WSNs. In short, we have proposed a trust model to avoid the malicious attacks and keep the transact data using the blockchain property of immutability. Moreover, an enhanced version of Proof of Stack (PoS), i.e., the Proof of Authority (PoA) consensus mechanism is being used to add a new node in the network. Additionally, the smart contract is also written to check the working status of nodes. Simulations are performed in order to record the transaction cost and execution cost.KeywordsBlockchainTrust modelSecurityProof of Authority
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