Abstract
In order to improve the security performance of data transmission in the RFID system, the sequence generated by the chaotic map is used to encrypt the data transmitted between the reader and the tag in the RFID. Based on the unpredictability, extreme sensitivity to initial conditions, and pseudo-random characteristics of chaotic sequences, the information of each electronic tag is encrypted with a unique chaotic sequence. The same operation mechanism is used to encrypt and decrypt data, and a security model based on chaotic encryption is established. At the same time, the read/write control mechanism and security issues are explained.