Data Integrity Time Optimization of a Blockchain IoT Smart Home Network Using Different Consensus and Hash Algorithms

Table 1

Summary of attacks on HANs.

Attack name	Effect	Defended by
Malicious block (cite)	Attackers produce a malicious block	Authentication algorithm and smart contract
Denial-of-service (cite)	Data unavailability	Access authority and management
Access control impersonation (cite)	Fraudulent behavior	Consensus algorithm
Double-spending (cite)	Same transaction multiple times	Consensus algorithm
Side-channel (cite)	Authentication process	Authentication algorithm