Method for realizing RFID (Radio Frequency Identification) two-way authentication by use of physical no-cloning technology

Abstract

The invention provides a method for realizing RFID (Radio Frequency Identification) two-way authentication by use of a physical no-cloning technology. The method comprises the steps that a reader / writer sends a command for requesting authentication to a label; the label sends IDS stored by the label to the reader / writer as response after receiving the command; the reader / writer verifies the authenticity of the sent IDS, calculates the values of K<n >(+)r and ID(+)F(IDS(+)r) and sends the calculation results to the label; the label verifies the authenticity of the calculation results sent by the reader / writer, obtains a random number r through calculation of K<n >(+)r (+)K<n > and further calculates F(IDS(+)r); the label verifies the accuracy of the ID through calculation of ID(+)F(IDS(+)r)(+)F(IDS(+)r); the label calculates the values of G<n+1>=P(G<n>) and G<n+2>=P(G<n+1>) if the ID is accurate and then sends the values of G<n+1>(+) G<n+2>(+)r and the G<n+2>(+)F(r) to the reader / writer; the reader / writer verifies the authenticity of the values sent by the label again; the reader / writer obtains G<n+2> through calculation of the G<n+1>(+)G<n+2>(+)rG<n+1>(+)r; further, the reader / writer verifies the accuracy of a message G<n+2>=G<n+2>(+)F(r) (+)F(r); and finishing the authentication process if the message is accurate. According to the method, the problem that safety defects exist in two-way authentication between the label and the reader / writer in an RFID system is solved, and the cost of the label end is reduced.

Description

Technical field [0001] The present invention relates to the technical field of radio frequency identification, in particular to a method for realizing RFID two-way authentication using physical unclonable technology. Background technique [0002] Radio Frequency Identification (RFID) technology has been widely used in many fields, such as logistics, national defense, and transportation. RFID system is an automatic identification system, which usually consists of three parts: tag, reader and back-end database. The reader can access the information stored in the tag, and can also forward the messages communicated between the tag and the back-end database. The back-end database can provide a variety of services, such as identity verification services, inventory management services, and so on. [0003] Many RFID authentication protocols based on pseudo-random number generators have been proposed. Such protocols can achieve security and privacy protection. At the same time, some ligh...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, the present invention provides a method for implementing RFID bidirectional authentication using physical unclonable technology, which can solve the problem of security defects in bidirectional authentication between tags and readers in RFID systems

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