Agricultural product tracing method and system based on block chain

Abstract

The invention relates to an agricultural product tracing method based on a block chain, which is applied to any node of a block chain cloud platform, and comprises the following steps: acquiring data information of an agricultural product, calling intelligent contracts of respective corresponding types of the data information to verify the data information, and if the data information passes the verification of the intelligent contracts of the corresponding types, obtaining a current timestamp, and forming data information containing the timestamp; encrypting the data information containing the timestamp to obtain a digital signature, and attaching the digital signature to the data information containing the timestamp to obtain encrypted agricultural product information, wherein the digital signature is obtained by a digital signature method of a GRS code based on a finite field; and uploading the encrypted agricultural product information to a block chain. According to the scheme, the blockchain technology and the digital signature technology of the GRS code based on the finite field are adopted, it can be guaranteed that related data information of each node of the agricultural product supply chain is not prone to being tampered, and finally traceability data provided for consumers is real and reliable.

Description

technical field [0001] The invention belongs to the technical field of product traceability, and in particular relates to a blockchain-based agricultural product traceability method and system. Background technique [0002] With the improvement of people's living standards, great changes have taken place in consumption concepts, with more emphasis on physical health and food safety. However, since the agricultural products that people depend on for survival involve multiple links in the supply chain from planting to sales, if any link goes wrong, the agricultural products in the hands of consumers will eventually face safety problems. [0003] At present, although some agricultural product traceability systems have appeared, because the relevant data are based on manual intervention, it not only consumes time and manpower, but also cannot guarantee whether these data will be tampered with during the entry and transmission process, and once the information is tampered, The t...

AI Technical Summary

Problems solved by technology

However, since the agricultural products that people rely on for survival involve multiple links in the supply chain from planting to sales, if any link goes wrong, the agricultural products in the hands of consumers will eventually face safety issues.

[0003] At present, although some traceability systems for agricultural products have appeared, beca

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