Attacks and Solutions for a Two-Factor Authentication Protocol for Wireless Body Area Networks

Table 4

Calculation cost comparison.

Protocol	User	Gateway	Sensor	Total (ms)
Fotouhi et al.’s [22]	10	17	7	37 = 10.88
Kumari et al.’s [32]	8 + 2	4 +	4 + 2	16 + 5 = 33.12
Srinivas et al.’s [33]	4 + 2 + 2	6 + 2	3 + 2	4 + 4 + 13 = 94.96
Gope et al.’s [34]	7	9	3	19 = 6.08
Ours	9 + 1	10	4	23 + 1 = 24.46