Deep Learning Data Privacy Protection Based on Homomorphic Encryption in AIoT

Table 4

Data dimensions, parameters, and decryption time in different layers.

Layer (type)	Output shape	Param	Decrypt time (seconds)
Input	(28, 28, 1)	0	N/A
Conv layer	(26, 26, 20)	200	2.073
Activation layer	(26, 26, 20)	0	N/A
Average pooling layer	(25, 25, 20)	0	2.511
Conv layer	(23, 23, 50)	9050	5.291
Activation layer	(23, 23, 50	0	N/A
Average pooling layer	(11, 11, 50)	0	1.211
Flatten layer	(6050)	0	N/A
Dense layer	(256)	1549056	0.055
Activation layer	(256)	0	N/A
Dense layer	(10)	2570	0.002
Activation layer	(10)	0	N/A

Total params: 1,560,876; total time: 11.143 s.