A method for supporting rfid ownership conversion

Abstract

The invention discloses an RFID ownership transforming and supporting method. The RFID ownership transforming and supporting method comprises the following steps: arranging a reader-writer trusted by both of a new owner and an old owner, and before ownership transformation, obtaining a parameter from the new owner by the reader-writer; during operation, firstly identifying a tag cooperating with a back-end database of the old owner by the reader-writer, and then transmitting data of an identification tag to the reader-writer by the back-end database of the old owner; after structuring a new secret key of the tag by using the parameter specified by the new owner by the reader-writer for the new owner, sending a message to the tag, and after authenticating the reader-writer and the back-end database by the tag, updating the secret key of the tag with a new secret key so as to perform the ownership transformation. According to the RFID ownership transforming and supporting method disclosed by the invention, the new secret key of the tag is structured according to the parameter specified by the new owner by the reader-writer trusted by both of the new owner and the old owner, and a back-end server of the new owner and a back-end server of the old owner are not needed to participate in the operation of calculating the new secret key, so that a potential security risk is effectively avoided.

Description

technical field [0001] The invention relates to a method for processing RFID tag ownership conversion, which belongs to the technical field of communication. Background technique [0002] As one of the important technologies supporting the development of the Internet of Things (IoT), Radio Frequency Identification (RFID) is a non-contact, automatic A technique for identifying a target object and obtaining relevant data. [0003] Generally speaking, an RFID system is generally composed of a reader (Reader) and a tag (Tag). The tag stores basic tag information, such as its unique identifier-ID, and related key status information used to identify the tag. Some low-cost tags have very limited storage space and can only accommodate their ID, while some better-performing tags can write brief information about the identified object. The RFID system usually also includes a back-end server or a back-end database (Back-end Database) for recording the identification table of the obje...

AI Technical Summary

Problems solved by technology

The Dimitriou method needs to judge each tag record in the back-end database during the authentication process, which faces the problem of low efficiency

The Elkhiyaoui method has the threat of being easily tracked

[0010] To sum up, the existing ownership conversion scheme involves both the new owner's reader-writer and back-end database, and the old owner's reader-writer and back-end database. For processing on the device side, the back-end databases of the old and new owners need to work together, so it is difficult to avoid potential security risks, and it also brings a lot of inconvenience to the actual processing

Another thing is that the key required for the conversion is generated in the back-end database of the old owner, and the new owner needs to update the key of the label again without leaving the old owner's database. The operation is very cumbersome

[0011] Another disadvantage of the existing ownership conversion scheme is that the conversion of ownership is carried out under the condition of "no manual intervention", but whether the RFID tag can achieve correct identification and conversion is often unknown

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