UPPGHA: Uniform Privacy Preservation Group Handover Authentication Mechanism for mMTC in LTE-A Networks

Table 1

Definition of notations of our scheme.

Notation	Definition
	Two -bit primes
	A generator with the maximal order in
	A secure hash function
	A secure hash function
	Node ’s private identity and temporal identity
	Private/public key of KGC, and
	MTC group’s group identity/temporal
	group identity/group temporal public key
	Private/public key of node
	Random number
	Session key between node and HSS/MME
	Encrypted results using
	Session key between node and