C-Lock: Local Network Resilient Port Knocking System Based on TOTP

Table 1

Time complexity vs. adversary effort.

	Sequence calculation (s)	Avg. adv. effort (s)	Avg. adv. effort [] (s)
1	3.0000−04	0.22	10.00
2	2.0503–05	2.23	100.01
3	1.8358-05	22.36	1000.12
4	2.0980–05	223.60	10001.24
5	2.4557−05	2236.06	100012.49
6	2.7894−05	22360.67	1000124.99
7	3.1232−05	223606.79	10001249.92
8	3.4809−05	2236067.97	100012499.21
9	3.8385−05	22360679.77	1000124992.18