Mobile RFID mutual authentication method based on dynamic shared secret key

Abstract

The invention discloses a mobile RFID mutual authentication method based on a dynamic shared secret key to solve the problem that synchronous security updating of a dynamic shared secret key and a synchronous mechanism once the dynamic shared secret key has been attacked cannot be realized as well as the problem about other security threats that may exist in terms of a wireless radio frequency identification authentication method. The technical scheme improves a conventional method that only utilizes randomized numbers to carry out identity authentication, therefore, a randomized number generated by a label can serve as parameters for mutual authentication between the label and a background database, and also serves as a seed of a dynamic updated shared secret key for the background database, a reader and the label. In this way, shared secret key security and random dynamic updating are achieved. According to the scheme, a background database stores the historical shared secret key by a list, and a dynamic adding and deleting method is carried out, thus guaranteeing synchronization of the shared secret key for the reader, the label and the background database after an attack. Multiple security attacks for a mobile RFID system can be prevented, and the quite high efficiency in terms of the performance of key labels is exhibited.

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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