LSKE: Lightweight Secure Key Exchange Scheme in Fog Federation

Table 1

Comparison of related work.

Related work	Fog federation	Secure	Mutual authentication	Key exchange	Lightweight
Sun et al. [3]	x	x	✔	✔	x
Li et al. [4]	x	x	✔	✔	x
Hu et al. [5]	x	✔	✔	x	x
Jia et al. [6]	x	✔	✔	✔	x
Wazid et al. [7]	X	✔	✔	✔	x
Chen et al. [8]	x	✔	✔	✔	x
Zheng et al. [9]	x	✔	✔	✔	x
Chen et al. [10]	x	✔	✔	✔	x
Yashar et al. [11]	✔	✔	✔	✔	x
Proposed scheme	✔	✔	✔	✔	✔

✔, the scheme is supported; X, the scheme is not supported.