A mobile RFID two-way authentication method based on dynamic shared key

Abstract

The invention discloses a two-way authentication method of a random dynamic shared key for mobile radio frequency identification, which is used to solve the security update of the dynamic shared key and the synchronization problem after being attacked in the radio frequency identification authentication method, as well as the vulnerability other security threats. The technical solution improves the traditional method of only using random numbers for identity authentication, not only makes the random number generated by the tag serve as a parameter for mutual authentication between the tag and the back-end database, but also makes it a means for the back-end database, the reader and the tag to dynamically update the shared key. Seeds to achieve shared key security and random dynamic update; the scheme adopts the method of storing historical shared keys in separate tables in the background database and dynamically adding and deleting them, so as to ensure that the shared keys between readers, tags and the background database can be saved after being attacked keys are kept in sync. The invention can prevent multiple security attacks aimed at the mobile RFID system, and has high efficiency in key label performance.

Description

technical field [0001] The invention relates to radio frequency identification technology, in particular to a safety authentication method based on random dynamic shared key related to mobile radio frequency identification. Background technique [0002] Radio Frequency Identification (RFID) is one of the key implementation technologies of the Internet of Things. While RFID is promoting the rapid development of the Internet of Things, it is accompanied by serious security threats. The two most important aspects are identity authentication and privacy protection. In the mobile RFID system, the mobile reader communicates with the background database, the mobile reader and the tag in an unsafe open channel in the form of wireless signals. Therefore, the security risks faced by mobile RFID systems are more serious and diverse. [0003] Among the authentication methods proposed by scholars at home and abroad, most of them are designed for traditional RFID systems. These methods ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the mobile RFID authentication method using the dynamic shared key cannot completely prevent desynchronization attacks, the dynamic shared key cannot be safely updated, and is vulnerable to various security attacks, the present invention proposes a dynamic shared key-based Mobile RFID two-way authentication method, while preventing security attacks against mobile RFID, has high tag performance

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