Blockchain technology using consensus mechanism for IoT-based e-healthcare system

Abstract

Abstract In healthcare systems IoT device has to give sensitive and private information about the patients, it should be maintained extremely confidential and personal. Most of the IoT-healthcare devices based on existing centralized server data management technology don’t give any guarantee of authenticity and security. Blockchain is a public tamperproof ledger that is decentralized network system in which transaction of data is distributed among the nodes. Blockchain with its consensus algorithm can solve problems by providing decentralized computation for IoT data. The combination of IoT and blockchain technologies with consensus algorithm can become a best choice of designing the secured distributed e-healthcare systems. This paper reviews the blockchain technology and the basic principle and characteristics of a consensus algorithm for IoT- based e- healthcare system.