Research Article
A Lightweight Three-Factor Authentication and Key Agreement Scheme for Multigateway WSNs in IoT
Table 4
Comparison of computation overhead.
| | | | Guo et al. [22] | Wu et al. [20] | Srinivas et al. [21] | Amin [19] | Ours |
| | Case 1 | | | | | | | Case 2 | | | | | |
| | HGWN | Case 1 | | | | | | | Case 2 | | | | | |
| | FGWN | Case 1 | 0 | 0 | 0 | 0 | 0 | | Case 2 | | | | | |
| | Case 1 | | | | | | | Case 2 | | 4 | | | |
| | Total | Case 1 | | | | | | | Case 2 | | | | | |
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