Security Authentication Protocol for Massive Machine Type Communication in 5G Networks

Table 1

Notations.

Notations	Definitions
TRC	The trusted registration center
	Machine type communication device
AUSF/UDM	Authentication server function/unified data management
SEAF/AMF	Security anchor function/access and mobility management function
	A one-way secure hash function
	Physical Unclonable Function
	Exclusive-OR operation
||	Concatenation operation
	The timestamp
GID	The group identity
	The temporary identity
	The system master key
	Message authentication code