A tag data anti-theft method based on EPC protocol, electronic tag and reader

Abstract

The invention discloses a labeled data burglary prevention method based on an EPC (Electronic Product Code) protocol, an electronic label and a reader-writer. The method comprises the following steps of: writing labeled data into an inactivation password storage area; distributing an EPC identifier for the electronic label and writing the EPC identifier into an EPC storage area; writing an obtained access password into an access password storage area and locking a reserved storage area and the EPC storage area; obtaining an access password according to an EPC; and comparing the obtained access password with a self-stored access password to determine whether read labeled data are legal. In the invention, labeled data are stored in the inactivation password storage area, and at least two electronic labels have the same EPC, and the reader-writer cannot be used for distinguishing electronic labels according to the EPC but can only be used for distinguishing labels and acquiring information carried by the labels by obtaining a correct access password, so that data of the electronic labels can be prevented from being stolen when the reader-writer is not unauthorized, and the security of electronic label data is further ensured.

Description

technical field [0001] The invention relates to a tag data anti-theft method, in particular to an EPC protocol-based tag data anti-theft method. Background technique [0002] The EPC C1G2 standard is an air interface communication technology standard between electronic tags and readers launched by EPCglobal based on the concept of EPC and the Internet of Things, aiming to assign a unique identification code to each item. At present, the demand for unified standards in the radio frequency identification industry is increasing. The EPC protocol is widely used because of its versatility and frequency band practicability. With the support of this protocol, the common problem of equipment between different suppliers has been solved, and better Promoted the development of the industry. However, this versatility also has certain disadvantages. [0003] The storage area of ​​EPC tags is divided into four parts, such as figure 1 As shown, they are the TID storage area used to stor...

AI Technical Summary

Problems solved by technology

Therefore, the security of tag data cannot be guaranteed, which has become a drawback of the EPC protocol

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