Hash function based RFID (Radio Frequency IDentification) mutual authentication method

Abstract

The invention discloses a Hash function based RFID (Radio Frequency IDentification) mutual authentication method, which belongs to the field of wireless network communication technology. According to the method, utilizing the hash function with a one-way irreversible operational property to avoid information leakage and effectively reduce cost; utilizing mapping array technology to protect tag position privacy; and performing key authentication after completion of repeated information interaction between a reader and a tag, so as to ensure that only legal reader and tag can realize data reading, and then completing mutual authentication between the RFID tag and the reader. The method provided by the invention not only can protect the privacy data of the tags from being stolen by illegal users, but also can effectively defense internal / external malicious system attack by users.

Description

Technical field [0001] The invention relates to the technical field of identity authentication, in particular to an RFID two-way authentication method based on a Hash function, and belongs to the technical field of wireless network communication. Background technique [0002] RFID (Radio Frequency Identification) is a non-contact automatic identification technology, which uses radio frequency signals to automatically identify target objects and obtain relevant data information. The tag reader / writer sends a certain frequency radio frequency signal through the transmitting antenna. When the RFID tag enters the working area of ​​the transmitting antenna, the tag transmits its own coding and other information through its built-in transmitting antenna; the system receiving antenna receives the carrier wave sent from the tag The signal is transmitted to the reader through the antenna adjuster, and the reader demodulates and decodes the received signal, and then sends it to the backgro...

AI Technical Summary

Problems solved by technology

[0007] Among them, the Hash chain protocol is a one-way authentication protocol, and its disadvantages are: ① Only the authentication of the reader to the tag is realized, and the authentication of the tag to the reader is not realized; Computing, the amount of calculation is quite large

The Hash-Lock protocol, the randomized Hash-Lock protocol and the LCAP protocol are two-way item authentication protocols. Their disadvantages are: ①The Hash-Lock protocol does not have a dynamic ID update mechanism, and the key and ID are transmitted in plain text, which seriously affects the security of the system. safety

②The randomized Hash-Lock protocol does not have forward security and cannot resist location tracking attacks

③The LCAP protocol is easy to cause problems such as data out-of-sync between the database and the RFID tag, so it is also vulnerable to attacks

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