A method for transferring ownership of an electronic label

Abstract

The invention relates to the technical field of information security, in particular to a method for transferring the ownership of an electronic label. The method includes: after the verification of the identity information of the tag and the original owner is passed, the original owner feeds back the first authentication information carrying the first shared key, the first random number and the identity information; after the tag passes the verification of the first authentication information, , generate intermediate information and a transfer key according to the first random number, the second random number and the first shared key, obtain the authentication information according to the first random number, the second random number and the transfer key; send the authentication information and the intermediate information To the original owner, the original owner obtains the suspected authentication information, and after the suspected authentication information is verified, transfers the first random number, the second random number and the transfer key to the new owner; The second shared key replaces the first shared key. The method separates the shared key from the transfer key, and solves the window problem and desynchronization problem in the prior art.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a method for transferring the ownership of an electronic label. Background technique [0002] At present, electronic label technology has been widely used in various fields such as logistics, transportation, anti-counterfeiting, and book management. Compared with traditional barcodes, electronic tags can realize longer-distance non-line-of-sight contact identification. The electronic tag system generally includes a background server, a reader, and an electronic tag. The former two can use complex encryption algorithms due to unrestricted calculations, so the data transmission between them is safe by default, but the connection between the reader and the tag is based on a wireless open channel. Vulnerable to various attacks. In general, the communication between the tag and the reader must be authenticated, and we need to design a secure protocol for it to resist at...

AI Technical Summary

Problems solved by technology

The technical problems in this technical solution are: the random number in the new owner update phase of the second stage is sent in plain text, and the attacker tampering with the random number and sending it to the tag will cause the tag to be updated with a key different from the new owner, thus Causes de-synchronization problems; the first phase and the second phase are independent of each other. If the second phase fails, since the original owner and the tag still have the original key at the same time, it will appear that both the new owner and the original owner can The case of the authentication label, the window problem

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