Research Article
A Provably Secure Three-Factor Authentication Protocol for Wireless Sensor Networks
Table 6
Communication cost comparison.
| | Rounds | Communication cost |
| Das et al.’s protocol [32] | 3 | 1824 bits | Chen et al.’s protocol [35] | 3 | 1248 bits | Wu et al.’s protocol [36] | 4 | 2912 bits | Our protocol | 4 | 2944 bits |
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