RFID-based efficient tracking and tracing method with privacy protection feature

Abstract

Provided is an RFID-based efficient tracking and tracing method with a privacy protection feature. According to the method, an item is labeled with an RFID tag, and the item is tracked and traced through the ID number of the RFID tag. First, a trusted third party TTP is established, and a user and equipment used thereby register in the TTP. After one transaction between a buyer and a seller, both parties of transaction and the TTP digitally sign the abstract of the ID of the tag and the information of the item labeled with the tag, both parties of transaction store original transaction data and the abstract signed by all the parties, and the TTP records the abstract signed by all the parties. When tracking (tracing) is needed, the seller (buyer) gives the original data and the data signed by the TTP as a proof to the TTP, and the TTP checks whether the abstract calculated according to the original data is consistent with the abstract recorded by the TTP and signed by all the parties so as to determine the whereabouts or source of the item. According to the method, transaction detail data is not stored in the TTP, so that the privacy and business secrets are well protected, and higher processing efficiency is achieved.

Description

technical field [0001] The invention relates to a method for tracking and tracing objects by using RFID, and belongs to the technical field of digital information transmission. Background technique [0002] In order to ensure the safety of items (especially food), the traceability of items has received increasing attention. The application of RFID to realize the traceability of items has become a new research field, which has important theoretical research value and application prospect. [0003] Compared with other identification technologies, RFID technology has many advantages, such as non-contact fast and high-precision identification; batch identification of multiple tags at the same time, and the identification process does not require manual intervention; tag data can be read through isolation materials, Unaffected by obstacles and can be used in harsh environments. [0004] RFID can identify target objects and obtain relevant data through non-contact information tr...

AI Technical Summary

Problems solved by technology

However, there are many links from production, circulation, and sales. If RFID is applied and a trusted third party is used to trace the source, it is usually necessary for a trusted third party to store all the information involved. This is obviously inefficient and not conducive to privacy protection

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