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

Algorithm 3

Secure sigmoid function.

	Input:
	Output:
	:
	:
(1)	Send to SSP
	SSP:
(2)
(3)
(4)
(5)
(6)	Choose two random integers ,
(7)	Send , to
	:
(8)	Decrypt and compute
(9)	Send to SSP
	SSP:
(10)	Choose two random integers
(11)
(12)
(13)	Send and to
	:
(14)	Decrypt ,
(15)
(16)	Send to SSP
	SSP:
(17)