Application Research On Anti-counterfeiting Traceability Of Agricultural Products Based On Hybrid Encryption

Agricultural products are closely related to people’s lives.Building a main traceability chain from the field to the dining table can realize the traceability of the whole process of production,processing,circulation and sales of agricultural products.Judging from the current situation of traceability of agricultural products,it is difficult for consumers to accurately understand the real information of each stage of agricultural products,which not only damages the legitimate rights and interests of consumers,but also provides opportunities for some fake and shoddy producers to speculate.anti-counterfeiting traceability scheme.The cost of traditional anti-counterfeiting technology is relatively high,it is difficult to popularize,and the technical content is low.Two-dimensional code anti-counterfeiting technology is low-cost,easy to popularize,and relatively safe.Some researchers have proposed an anti-counterfeiting traceability scheme combining two-dimensional code technology and RSA algorithm,but RSA The algorithm decryption speed is slow and the security is not strong enough.Therefore,this research proposes an anti-counterfeiting traceability scheme that combines two-dimensional code technology and a new hybrid encryption algorithm.The new hybrid encryption algorithm is more efficient and more secure,significantly shortens the decoding time and better guarantees The security of dimensional code data not only allows consumers to query quickly and obtain real data,but also makes it difficult for counterfeit and shoddy producers to have the opportunity to steal data.The main contents of this research include:(1)Improvement of AES algorithm: the initial key remains unchanged,the second round of key expansion,filling the random key generated by a one-dimensional chaotic system independent of the initial key,before and after cutting The key connection;in the column mixing transformation,a new-M matrix is??proposed to solve the asymmetric problem of the column mixing forward and inverse transformation.(2)Improvement of the RSA algorithm: first,use 3 prime factors p,q,r to get the modulus n,and reduce the number of bits of the selected prime factor;then introduce the parameter Y to hide the modulus n and eliminate the risk of being decomposed;finally,Use the CRT theorem to speed up the decryption operation.(3)Two-dimensional code generation and hybrid encryption scheme: This study adopts QR Code as the implementation method of two-dimensional code,and uses new-AES and new-RSA algorithm to form a new hybrid encryption algorithm to encrypt two-dimensional code.The new hybrid encryption algorithm uses the AES algorithm to encrypt the agricultural product data before generating the QR code to obtain the information ciphertext and key parameters,then uses the RSA algorithm to encrypt the parameters to obtain the parameter ciphertext,and finally integrates the ciphertext encoding to generate a two-dimensional code.code.(4)Algorithm application: After the algorithm is improved,this study takes Longan in Conghua District,Guangzhou City as an example to design and implement an anti-counterfeiting traceability scheme based on hybrid encryption,which illustrates the effectiveness and application value of the new hybrid encryption algorithm.