An optical label anti-counterfeiting method and system based on one-way hash function

Abstract

The invention provides an optical tag anti-counterfeiting method and system based on a one-way hash function, which is convenient to use and has good anti-counterfeiting performance. The method includes the following steps. Step 1. In the authentication server, establish a one-way hash function for optical tag anti-counterfeiting, set its initial parameters, and perform confidential processing; Step 2. Set the authentication period and the starting point, and Together with the one-way hash function, it is stored in the optical tag controller; Step 3, the user performs anti-counterfeiting verification when collecting the optical tag through the mobile collection device; Step 4, the authentication server inputs the received current authentication time into the one-way hash function The current verification signal is obtained in the function; if the current verification signal is the same as the received current output signal, the optical tag collected by the user is legal, otherwise the optical tag collected by the user is illegal; Step 5, the authentication server sends the identification result Send it to the mobile collection device to complete the anti-counterfeiting operation of the optical tag based on the one-way hash function.

Description

technical field [0001] The invention relates to an optical tag anti-counterfeiting method, in particular to an optical tag anti-counterfeiting method and system based on a one-way hash function. Background technique [0002] The use of optical tags has the advantages of long-distance, loose visible light conditions, strong directivity, and positionability, and the display content of optical tags changes rapidly with time, and can provide a large amount of information capacity, which is stronger than traditional two-dimensional code tags. The interactive ability provides great convenience for users and merchants. Due to the openness of registration of optical tags, anyone can publish personal services or information by purchasing or applying for optical tags, which creates the possibility of criminals forging optical tags. In order to prevent the illegal forgery of the optical label, it is necessary to provide an anti-counterfeiting method for the optical label. Contents o...

AI Technical Summary

Problems solved by technology

Due to the openness of registration of optical tags, anyone can purchase or apply for optical tags to publish personal services or information, which creates the possibility of criminals forging optical tags

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