Reserach On RFID Securit Authentication Protocol

With the development of Internet of Things technology,RFID is widely used in all walks of life,but its security problem is a major risk.The key point of RFID technology is to find security protocols to address RFID security risks,which is very important to apply RFID widely.At present,there are many RFID security protocols for a variety of attacks,but it is difficult to propose real-time security protocols.This paper proposes an RFID security protocol combining Feistel algorithm with RSA algorithm.And we use signal and slot mechanism in the Qt graphical interface to simulate the protocol.At the same time,this paper also proposes a dynamic key matrix protocol for pre-shared keys,which improves the security of the protocol by using the strong pseudo-random properties of pre-shared keys.And it is carried out by software simulation.Considering that the FPGA device can effectively simulate the authentication process of the protocol,this paper designs the finite state machine of the dynamic key matrix security protocol.It is proved that the protocol is feasible by making the FPGA-based label and the host computer authentication.Finally,this paper uses BAN logic to prove that the protocol is safe in the implementation process,and the calculation theory to prove that the protocol password algorithm is safe.