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

Algorithm 5

The modified Montgomery exponentiation 2 ()

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