. 2022 Feb 2;22(3):1146. doi: 10.3390/s22031146

Table 5.

Analysis of the communication cost.

	A	B	HFB
Phase	A	B	HFB
Phase 2	N/A	$1 T_{E / D}$ $+ 4 T_{M o d}$ $+ 2 T_{H}$ $+ 8 T_{M u l}$ $+ 1 T_{S y m}$ $+ 2 T_{S i g}$	$2 T_{C m p}$ $+ 3 T_{M o d}$ $+ 4 T_{M u l}$ $+ 1 T_{H}$
Phase 3	$1 T_{C m p}$ $+ 2 T_{M o d}$ $+ 1 T_{H}$ $+ 4 T_{M u l}$ $+ 1 T_{S i g}$	N/A	$2 T_{C m p}$ $+ 3 T_{M o d}$ $+ 4 T_{M u l}$ $+ 1 T_{H}$
Phase 4	$3 T_{E / D}$ $+ 2 T_{C m p}$ $+ 5 T_{M o d}$ $+ 2 T_{H}$ $+ 8 T_{M u l}$ $+ 1 T_{S i g}$	$2 T_{E / D}$ $+ 2 T_{C m p}$ $+ 5 T_{M o d}$ $+ 8 T_{M u l}$ $+ 2 T_{H}$ $+ 1 T_{S i g}$	N/A

Notes: $T_{E / D}$ : Encryption/Decryption operation, $T_{H}$ : Hash function operation, $T_{M u l}$ : Multiplication operation, $T_{C m p}$ : Comparison of operation, $T_{M o d}$ : Modular operation, $T_{S y m}$ : Symmetric encryption operation, $T_{S i g}$ : Signature operation.