EPPSA: Efficient Privacy-Preserving Statistical Aggregation Scheme for Edge Computing-Enhanced Wireless Sensor Networks

Algorithm 4

The modified Montgomery exponentiation 1 ()

(i)	Input: , , , where is computed by the extended Euclidean algorithm.
	Output:
(1)
(2)
(3)	For down to 0
(4)
(5)	if , then
(6)	return