Reaserch On RFSN Security Protocols Based On Blom Matrix

With the development of the internet of things, the two key technologies in it,which are the Radio Frequency Identification(RFID) and Wireless Sensor Network(WSN), have been more and more widely used. At the same time, the development of the two technologies have also embarked on the road of combining. The RFSN system,which is the fusion of RFID and WSN two technologies, is gradually being researched.It is more diverse than the use of WSN and more flexible than RFID communication and networking.The Blom matrix algorithm is an encryption algorithm for wireless network based on symmetric matrix. Let the nodes in the network to store a small amount of shared secret key information as less as possible, at the same time, when there is a need for two nodes to communication or identity authentication, they can restore shared secret key from these small enough information.Blom matrix algorithm is applied to the RFSN system, which can be good because it makes up the limitations of the RFSN equipment and other inherent characteristics of the system.Through the addition of Blom matrix, each node needs to store only a small amount of matrix vector, and through an inner product operation, they can verify the identity of the two sides of communication.In this thesis, the security requirement of RFSN system was analyzed, and a security protocol of RFSN based on Blom matrix was proposed. The performance of the protocol was analyzed and compared with the similar protocols. The security of the protocol proposed in this thesis was proved by formal language, and some tests against some common attacks were done. Finally, the simulation and implementation of the proposed protocol were carried out.