Tamper-proof method for product information codes

• Main Authors: WEI YU, WANG LIJIAO, YANG JUNJUN, QIU WUHUI, HUANG CHUANGJUN, LIU YEFENG, ZHAO SHAOHUA, ZHANG YUJUAN, SUN XIAOGANG, LI BIN, DOU SHAOFEI, MAO ZHOUMING
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a tamper-proofing method for product information codes, which comprises the following steps that: a coding system adds a plurality of product information codes on an original code, the original code and the product information codes are correspondingly provided with flag bit codes to form an unencrypted reconstructed code, the coding system identifies the flag bit codes, reads corresponding code characters and records the code characters in an encryption box, and the encryption box is used for encrypting the code characters; carrying out XOR calculation, system conversion and fixed bit valuing on the characters of the encryption box in sequence to form a check code, constructing a code and the check code to form transmission data, and uploading the transmission data to a server by a coding system; and the decoding system identifies the flag bit code in the reconstructed code to obtain the corresponding code, records the code character in the corresponding decryption box, sequentially p