RFID (Radio Frequency Identification Device) mutual authentication method based on secret key and cache mechanism

Abstract

The invention provides an RFID (Radio Frequency Identification Device) mutual authentication method based on a secret key and a cache mechanism, which mainly solves the problems in the prior art that illegal reading, position tracking, eavesdropping, camouflage cajoling and unsafe resetting can not be resisted simultaneously. The achieving steps are as follows: a reader-writer and a tag adopt typical inquire response mechanism, the tag generates two authentication information values, namely beta is equal to hash (rl and Pr0), and sends the authentication information values to the reader-writer, the reader-writer compares received information value with self-computed information value, if the comparison results are same, returning authentication information hash (k' Pr0 and Prl') is sent to the tag through authentication. If the comparison results are different, the information is sent to back-end data base, authentication judgment is conducted by the back-end data base, the returning authentication information hash (k'' Pr0 and Prl'') is sent to the tag, after the tag receives the returning authentication information, authentication is carried out on the reader-writer by comparing the tag with self-computed value hash (k Pr0 and Prl), if the tag and the self-computed value hash (k Pr0 Prl) are same, the authentication is passed. The RFID (Radio Frequency Identification Device) mutual authentication method has the advantages of high safety performance and high execution efficiency, and can be applied to the RFID application context with limited resources and high safety requirements.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to the transmission of digital information, and specifically relates to an RFID two-way authentication method based on a key and a cache mechanism. Background technique [0002] Radio frequency identification (RFID), commonly known as electronic tag technology, is a high-tech technology for fast, real-time and accurate collection and processing of information, and is listed as one of the top ten important technologies in the 21st century. RFID is widely used in production, retail, logistics, transportation and other industries, and has gradually become an indispensable technology and technology for enterprises to improve logistics supply chain management level, enterprise management informationization, reduce costs, participate in the international economic cycle, and enhance the core competitiveness of enterprises. means. The rise of RFID technology is not because it is a new tech...

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Problems solved by technology

[0010] However, most of the existing RFID protocols have defects that cannot fully satisfy the above security

For example, the Hash-Lock protocol cannot resist eavesdropping, replay, spoofing and tracking attacks, and its security is very poor; although the random Hash-Lock protocol solves the tracking problem on the basis of the Hash-Lock protocol, it still cannot effectively prevent denial of service attacks. , replay and spoofing attacks; the Hash chain protocol and the Hash-based ID change protocol cannot resist denial of service and spoofing attacks; have achieved good results, but they are still not immune to denial of service attacks

Therefore, designing a safe, efficient and low-cost RFID security authentication protocol is still a challenging research problem

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