Two-dimensional code verification method for food safety

Abstract

The invention discloses a two-dimensional code verification method for food safety and solves the problem of complex security verification operations through telephones or short messages in the prior art. According to the technical scheme, the two-dimensional code verification method comprises the steps of establishing a food information database in a remote server, wherein the food information database is used for storing basic information, tracing information and a unique identifier of each piece of food; encrypting the tracing information by the basic information to generate encrypted tracing information, and generating a dark two-dimensional code for each piece of food in the food information database according to the encrypted tracing information and each unique identifier; generating a bright two-dimensional code for each piece of food in the food information database by the encrypted tracing information and a one-way HASH function of each unique identifier; receiving the bright two-dimensional codes of to-be-detected food sent by users, analyzing the bright two-dimensional codes to obtain the unique identifiers, verifying the unique identifiers, and judging the safety of the to-be-detected food according to verification results. The two-dimensional code verification method is applicable to the security verification field.

Description

technical field [0001] The invention relates to two-dimensional code technology, in particular to a food safety-oriented two-dimensional code verification method. Background technique [0002] Anti-counterfeiting technology refers to the measures taken to achieve the purpose of anti-counterfeiting. It can accurately identify the authenticity within a certain range and is not easy to be imitated and copied. Simply put, it is a technology to prevent counterfeiting and counterfeiting. [0003] Traceability means that consumers can view all the production, processing, and circulation information of the product from raw material production to final packaging into salable goods through the product traceability label on the product package. The traceability label is a two-dimensional code. [0004] Two-dimensional barcode / two-dimensional code (English name: QR Code) is a black and white graphic that is distributed in a plane (two-dimensional direction) with a specific geometric fi...

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a food safety-oriented two-dimensional code verification method, which solves the problem of complex anti-counterfeiting verification operations

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