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

Table 6

Comparison table based on different parameters of the existing big data, cloud computing, and network security management technique (cont…).

S. no.	Reference	Year	Technology used	Summary of the work	Shortcoming of the work	Possible solution	Implementation remarks
6.	[78]	2020	(a) Smart contract, (b) Ethereum blockchain, (c) federated ML, (d) IPFS	Framework combines smart contracts (Ethereum blockchain), differential privacy, and federated ML to enforce trustworthiness and privacy on IIoT data. The work is simulated using Python and socket programming.	There is significant latency	Investigate different approaches to reduce latency which further improves the efficiency of the system	Ganache is used as a test network for the local experiments
7.	[79]	2020	(a) IoT, (b) blockchain, (c) cloud server	Blockchain and cloud assisted secure authentication protocol for the IoT-enabled telecare medical information system	Service providers store the data on cloud servers. Therefore, SPOF may exist in the system	IPFS mechanism can be used as distributed storage	Protocol simulation shows that the computational cost is , and communication cost is
8.	[80]	2020	(a) IoT, (b) blockchain, (c) cloud server, (d) edge computing server	A blockchain-enabled framework to minimize the energy consumption of IoT devices integrating the edge and cloud computing servers	Blockchain only used to store the IoT data	Only few parameters are simulated, and blockchain execution in the real networks is one of possible solutions to increase the throughput of the system	Average response time and energy consumption of the solution are lower than those in the existing schemes
9.	[81]	2021	(a) IoT, (b) blockchain	Private blockchain-enabled cipher-policy attribute-based encryption scheme for IIoT	Deep analysis of smart contract mechanism required	State machine model-based smart contracts can be designed	Smart contract languages such as Solidity can be used for writing the contracts among the IIoT entities
10.	[82]	2021	(a) IoT, (b) blockchain, (c) cloud server, (d) software-defined network	A software-defined networking and blockchain-enabled framework for the evidence collection and provenance preservation	Smart contract mechanism can be used to automate the whole system	State machine model-based smart contracts can be designed	Simulation result reveals that the performance of the system is better while increasing the number of users and load on the system