基于激光二维码的物流编码加密算法研究

Research on encryption algorithm of logistics coding based on laser Two-Dimensional code

物流编码传输中激光二维码传输容易受到明文攻击,导致信息泄漏,通过对物联编码的数据加密,提高物流编码传输的保密性和安全性,提出基于码元频次检测的物流编码传输中激光二维码加密算法,采用数据隐写加密方案构建激光二维码的加密密钥,结合激光二维码的分组密码重构方案进行公钥随机数设计,采用Hash函数构造一个线性密码与分组密码。采用相位随机化处理方法进行物流编码传输中激光二维码的编码和密钥设计,根据授权证书中的激光二维码图像特征进行物流编码设计,构建物流编码的加密解密密钥,采用有限域内明文填充方法进行物流编码的码元频次检测,实现激光二维码加密输出和密钥设计。仿真结果表明,采用该方法进行物流编码传输中激光二维码加密的保密性较好,数据隐写性能较强,提高了物流编码的抗攻击能力。

In the logistics coding transmission,the laser QR code transmission is vulnerable to the clear text attack,which leads to the information leakage.By encrypting the data of the WH code,the confidentiality and security of the material flow coding transmission can be improved.In this paper,the encryption algorithm of laser QR code in material flow code transmission based on symbol frequency detection is proposed.The encryption key of laser QR code is constructed by data steganography encryption scheme,and the public key random number is designed by combining the block cipher reconstruction scheme of LQC.Using Hash function to construct a linear cipher and block cipher,the phase randomization processing method is used to encode and design the key of the laser two-dimension code in the material flow coding and transmission.According to the characteristics of the laser two-dimensional code image in the authorization certificate,the logistics coding is designed,the encryption and decryption key of the logistics code is constructed,and the code frequency detection of the logistics code is carried out by filling in the clear text in the limited domain.The encryption output and key design of laser QR code are realized.The simulation results show that the proposed method has good security and steganography performance in the transmission of the material flow code,and improves the anti-attack ability of the material flow code.