RFID multi-tag joint authentication system and method based on Internet-of-Things application

Abstract

The invention provides an RFID multi-label joint authentication system and method based on Internet-of-Things application. The method comprises the following steps: constructing a key sequence distribution function and a main control key, and setting a shared key of a reader and a label; constructing a first key sequence based on the sub-key, the shared key and a public key of the reader, and sending the first key sequence to the tag; enabling the reader to send a random number and an authentication request message, enabling the tag to construct a response message based on the random number sent by the reader, the random number of the tag and the sub-key, and encrypting and then returning the response message through the public key to the reader; enabling the reader to decrypt the ciphertext by using the private key and obtain the sub-key of the tag; judging whether the reader receives response messages sent by all the tags within a set time, if so, substituting the sub-keys of the tags into a key sequence distribution function, reconstructing to obtain a key value, and comparing the key value with a main control key, if the sub-keys of the tags are the same, indicating that all the tags participating in authentication pass the authentication, and otherwise, judging that the authentication fails; and therefore, achieving a multi-label joint authentication function.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification of the Internet of things, in particular to the field of tag joint authentication in the radio frequency identification technology. Background technique [0002] In the initial stage of the development of the Internet of Things technology, the most important thing for the application of the Internet of Things is to realize the corresponding functions and improve the sense of use. Due to the lack of a lot of practical experience, its security maintenance system still uses the old and customary safety protection system. As the Internet of Things technology is used more and more widely, the old protection mechanism should also improve with the development of Internet technology. In recent years, Radio Frequency Identification (RFID) technology has developed rapidly, and it is committed to identifying target objects in a cost-effective and non-contact manner, and has gradually ...

AI Technical Summary

Problems solved by technology

[0003] At present, most radio frequency authentication technologies use the reader and the tag as a one-to-one mapping relationship to identify each other's identity information, but in practical applications, this method is still used for multiple tag carriers with a binding relationship. This authentication method can only determine the authenticity of each label one by one, but cannot determine which group of items the fake or missing label is from, that is, it cannot determine the integrity of all labels in each group

For example: in a product with an outer package, some counterfeit products with false labels are mixed into it. Since the products in the package are independent of each other and have no relationship, it will inevitably bring difficulties to product inspection.

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