[Retracted] ECC-Based Authenticated Key Exchange Protocol for Fog-Based IoT Networks

Table 1

Symbols and their description.

Symbol	Description
	Hash function
	Node with identity i
	Identity of the fog center
	Private key of certification authority
	Public key of certification authority
	ECDSA signature pair of
	Shared key between and
	Certificate version of
	Certificate version of
	Last seen certificate version of in
	Generator point of
	Scalar point multiplication between K and
	Point addition between and
	Certification authority