A Lightweight Authenticated Key Agreement Protocol Using Fog Nodes in Social Internet of Vehicles

Table 5

Communication cost comparison.

Protocol	Round	Communication cost (bits)
Ma et al. [10]	4	4512
Wazid et al. [34]	3	3488
Eftekhari et al. [9]	4	4416
Wu et al. [32]	4	4448
Ours	4	2336