Table 4 Comparison of computation costs
Protocol | Chiou et al. [13] | Mohit et al. [14] | Kumar et al. [15] | Li et al. [16] | The proposed scheme |
|---|---|---|---|---|---|
Patient visiting doctor phase | \(\begin{aligned} 1T_{Sign} + 3T_{P} + \hfill \\ 2T_{S} + 7T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 1T_{Sign} + 3T_{S} + \hfill \\ 11T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 1T_{Sign} + 3T_{S} + \hfill \\ 10T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 1T_{Sign} + 3T_{S} + \hfill \\ 11T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 4T_{Sign} + 4T_{A} + \hfill \\ 2T_{S} + 2T_{H} \hfill \\ \end{aligned}\) |
Electrical medical record search phase | \(\begin{aligned} 3T_{Sign} + 4T_{M} + \hfill \\ 8T_{P} + 6T_{S} + \hfill \\ 18T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 4T_{Sign} + 4T_{S} + \hfill \\ 19T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 4T_{Sign} + 12T_{S} + \hfill \\ 20T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 5T_{Sign} + 10T_{S} + \hfill \\ 20T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 8T_{Sign} + 8T_{A} + \hfill \\ 4T_{S} + 2T_{H} \hfill \\ \end{aligned}\) |
Diagnosis phase | \(\begin{aligned} 1T_{Sign} + 2T_{S} + \hfill \\ 8T_{H} + 2T_{P} \hfill \\ \end{aligned}\) | \(\begin{aligned} 1T_{Sign} + 2T_{S} + \hfill \\ 5T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 1T_{Sign} + 5T_{S} + \hfill \\ 10T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 1T_{Sign} + 2T_{S} + \hfill \\ 8T_{H} \hfill \\ \end{aligned}\) | \(2T_{A}\) |
Total cost | \(\begin{aligned} 5T_{Sign} + 4T_{M} + \hfill \\ 13T_{P} \hfill \\ \end{aligned}\) | \(\begin{aligned} 6T_{Sign} + 9T_{S} + \hfill \\ 35T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 6T_{Sign} + 20T_{S} + \hfill \\ 40T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 7T_{Sign} + 15T_{S} + \hfill \\ 36T_{H} \hfill \\ \end{aligned}\) | \(\begin{aligned} 12T_{Sign} + 14T_{A} + \hfill \\ 6T_{S} + 4T_{H} \hfill \\ \end{aligned}\) |