Formal Analysis of the Security Protocol with Timestamp Using SPIN

Table 2

Experimental data of WMF protocol.

WMF protocol model	Model 1 (using synchronization channel)		Model 2 (using asynchronous channels)
Security properties	States	Transitions	States	Transitions
Authentication	323	398	361	448
Freshness	47	50	51	54

Note. The experimental results are obtained by using SPIN6.5.1, CPU Intel(R) Core (TM)i5-6300HQ (2.3 GHz), RAM 2 GB, and the operating system platform Ubuntu 18.04.6 virtual machine experimental environment. The parameter of the state search method is depth-first search, and the parameter value of the search depth is 10000 (default value).