A RFID technology and anti-counterfeiting system was studied in this paper.Firstly

we propose a hardware and software framework of anti-counterfeit system based on RFID technologies; furthermore the hierarchical structure of the anti-counterfeit system was analyzed in details.Then aimed at the complexity of the anti-counterfeit system an intelligent attacking model was presented here

and the A* algorithm is adopted in this attack model and used to search a lowest price tree by the fictional attacker in order to evaluate the proposed anti-counterfeit system especially for the protocol used in this system.Finally

an experimental testing with VC+ + and Matlab was simulated.Simulation results indicate that the proposed modeling methods can be used effectively to model complex anti-counterfeiting systems.