Security-Level Improvement of IoT-Based Systems Using Biometric Features

Table 16

Comparison results.

Security threat (%)	System security improvement (relative to each layer)
	Layer 1: Biometric in sensor layer	Layer 2: Hashing in IoT controller	Layer 3: Application layer
10	101.33	101.33	122.80
20	102.32	103.29	130.58
30	102.08	105.84	133.46
40	102.72	106.20	136.66
50	105.14	109.91	139.73
60	107.13	111.98	143.80
70	108.75	116.25	154.07
80	112.41	119.26	164.19
90	114.22	120.04	174.83
Average	106.23	110.45	144.46
	120.38