ePMLF: Efficient and Privacy-Preserving Machine Learning Framework Based on Fog Computing

Table 6

Comparison of computation time.

Building blocks	Ours, s	[5],
Secure addition	0.019 ms	0.08 ms
Secure subtraction	42.6 ms	80.5 ms
Secure division	98.8 ms	Not support
Secure inner product	10.1 ms	79.6 ms
Secure summation	181.8 ms	1666.9 ms
Secure sigmoid function	232.4 ms	445.7 ms