A Location Privacy Protection Method in Internet of Things Authentication

Abstract

The invention discloses a location privacy protection method in Internet of Things authentication, belonging to the technical field of Internet of Things security. The method includes the following steps: (1) Key distribution stage, realizing the distribution of key material from the key server to radio frequency tags and reader-writers. (2) The search and authentication stage. In this stage, after the identity is encrypted through the designed square root algorithm, the reader and the radio frequency tag perform data communication to complete the identity authentication. (3) In the shared key generation stage, the reader and the tag calculate the shared key respectively, and use the key to transmit communication information such as the tag ID. The present invention ensures the location privacy and security of communication at the sensing layer of the Internet of Things, that is, only a legal reader can discover and know the location of the radio frequency tag, so that the location of the tag is hidden.

Description

technical field [0001] The invention relates to the technical field of Internet of Things security, in particular to a location privacy protection method in Internet of Things authentication. Background technique [0002] The Internet of Things is becoming more and more popular. The Internet of Things uses radio frequency identification (RFID), two-dimensional codes, wireless data communication and other technologies on the basis of the computer Internet to construct a network covering everything in the world. The Internet of Things is another wave of the information industry after computers, the Internet, and mobile communication networks. The Internet of Things can be divided into three layers: perception layer, network layer and application layer. Among them, the perception layer is equivalent to human skin and facial features, which can recognize objects and collect information. The perception layer is mainly composed of RFID and some other sensor networks. It is the m...

AI Technical Summary

Problems solved by technology

[0005] The location privacy problem in authentication can be found through examples: when an attacker uses a reader to search for an RF tag, he will complete the authentication process with the tag

During this process, the tag may give its own identification and other information to the reader, and the reader will know that there is a radio frequency tag nearby during the communication process, resulting in the exposure of the tag position

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