Table 1.

Comparing factors in the previous works vs. the proposed model

Reference	Architecture/framework	Applied technology	Security	Lightweight encryption method
[16]	✓	Cloud	✘	✘
[17]	✓	Cloud	✘	✘
[18]	✓	Cloud	✘	✘
[19]	✓	Cloud	✘	✘
[20]	✓	IoT	✓	✘
[21]	✓	IoT	✘	✘
[22]	✓	IoT	✘	✘
[23]	✓	IoT	✘	✘
[24]	✓	IoT	✘	✘
[25]	✓	IoT	✘	✘
[26]	✓	IoT	✘	✘
[27]	✓	IoT	✘	✘
[29]	✓	Cloud-based IoT	✘	✘
[28]	✓	Cloud-based IoT	✘	✘
[31]	✓	Cloud-based IoT	✓	✘
[30]	✓	Cloud-based IoT	✓	✘
[32]	✓	Cloud-based IoT	✘	✘
[9]	✓	Cloud-based IoT	✘	✘
[7]	✓	Cloud-based IoT	✓	✘
[36]	✘	Not mentioned	✘	✘
[35]	✘	Not mentioned	✘	✘
[34]	✘	Not mentioned	✘	✘
[43]	✘	Not mentioned	✘	✘
[38]	✘	Not mentioned	✘	✘
[44]	✘	Not mentioned	✘	✘
[37]	✘	Not mentioned	✘	✘
[39]	✘	Not mentioned	✘	✘
[8]	✓	Cloud-based IoT	✘	✘
Our proposed model	✓	Cloud-based IoT	✓	✓