Research Article

Blockchain-Based Internet of Things and Industrial IoT: A Comprehensive Survey

Table 7

Comparison table based on different parameters of the existing IoT-enabled healthcare sectors.

S. no.ReferenceYearTechnology usedSummary of the workShortcoming of the workPossible solutionImplementation remarks

1.[86]2018(a) Cloud, (b) blockchainA decentralized framework to manage the healthcare data based on the cloud-enabled blockchain systemOnly the prototype model is discussed.Private blockchain-enabled cryptographic protocol is one of the possible solutionsOnly the theoretical study of the proposed solution

2.[87]2019(a) IPFS, (b) blockchain, (c) SolidityOff-chain storage mechanism and role-based access policy scheme for the electronic health records based on the blockchainDeep analysis of cryptographic primitives behind the role-based access policy scheme is requiredCipher-text attributed-based encryption scheme can be usedSolution increases the scalability of the system

3.[84]2020(a) IoMT, (b) blockchainA decentralized blockchain-enabled prototype model to combat by using the Internet-of-medical-things devices (IoMT)Simulation of the proposed solution is not addressedCryptography primitives and smart contracts can be used to achieve more security in the IoMT applicationSmart contract languages such as Solidity or Golang with security validation tools can be used

4.[85]2020(a) IoMT, (b) blockchain, (c) attributed-based encryption and signature schemeA framework for the medical data-sharing based on the blockchain and cloud serversThe protocol mostly depends on the third party for its operationsA distributed storage system such as swarm and IPFS can be used to achieve the full decentralizationThe protocol is not analyzed formally. The security validation tools, i.e., AVISPA and Scyther do this

5.[88]2020(a) IoMT, (b) blockchain, (c) cloud serverBlockchain-enabled authentication and key-agreement protocol for IoMTCloud server storage cost may be increasedOff-line storage scheme can be used for reducing the storage costProtocol simulation confirms that the computation cost is , and communication cost is

6.[89]2021 IoMT, (b) blockchain, (c) edge computingBlockchain-enabled optimization and priority assignment model for medical data exchangeDid not investigate the analysis of medical data used in real scenarioPossible machine learning and deep learning algorithm can be used for proper analysis of medical dataEMOTIV EPOC used for simulating the EEG data