Lightweight and Anonymous Mutual Authentication Protocol for Edge IoT Nodes with Physical Unclonable Function

Table 4

The analysis of communication costs (bits).

Protocols	[18]		[10]		[22]		Our protocol
	Size	Times	Size	Times	Size	Times	Size	Times
The IoT device end		2		2		2		2
The server end		1		1		2		1
Total		3		3		4		3