A RFID two-way authentication method

Abstract

The invention provides an RFID two-way authentication method. The method comprises: receiving a first parameter C1 sent by a reader / writer, a random number N, a tag account address TAddress and a reader / writer account address RAddress; if the label account address TAddress is stored in the self-maintained block chain, generating the second parameter C2 according to the label account address TAddress, the label account balance balanceBC and the random number N; if it is known that the first parameter C1 is equal to the second parameter C2, Then, determining that the authentication of the tag bythe reader / writer is successful, and according to the balance balanceBC of the tag account and the random number N, generating the third parameter C3 and sending the third parameter C3 to the tag bythe reader / writer, so that the tag obtains the authentication result of the tag / reader based on the third parameter C3. Through combination of the block chain technology and the RFID technology, sincethe block chain is essentially a distributed account book maintained by each node in the network, the method provided by the invention can ensure the privacy of each tag without a database and a trusted third party while completing the security authentication.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of radio frequency identification, and in particular to an RFID two-way authentication method. Background technique [0002] Radio Frequency Identification (RFID) technology has developed rapidly in recent years and is widely used in various applications such as inventory management, supply chain, product tracking, transportation, logistics and self-service supermarkets. An RFID system usually consists of one or more RFID readers, a large number of RFID tags and a back-end server. Each tag is attached to a physical object, and the interrogator can identify or track the object by communicating with the corresponding tag. Since the communication between the tag and the reader is transmitted wirelessly through radio frequency signals, attackers can implement attacks such as eavesdropping, replay, tampering, and DoS to obtain sensitive tag information or affect the normal operation of ...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides an RFID two-way authentication method, which is used to solve the defect that the RFID two-way authentication protocol in the prior art is insufficient in security and is not suitable for distributed systems, improves the security of authentication, and is suitable for distributed systems

Images