基于QR码低复杂度信息隐藏方案  

An information hiding scheme with low complexity based on QR codes

作　　者：郑东[1] 杨舜同 赵庆兰[1] ZHENG Dong;YANG Shuntong;ZHAO Qinglan(National Engineering Laboratory for Wireless Security,Xi'an University of Posts and Telecommunications Xi'an 710121,China)

机构地区：[1]西安邮电大学无线网络安全技术国家工程实验室

出　　处：《西安邮电大学学报》2019年第3期64-70,共7页Journal of Xi’an University of Posts and Telecommunications

基　　金：国家自然科学基金资助项目(61772418)

摘　　要：为了保护快速响应码(quick response,QR)中的数据安全,设计一种基于QR码低复杂度信息隐藏方案。利用QR码本身的纠错特征,直接修改QR码的编码模块,并通过用户密钥和伪随机发生器生成随机序列,在QR码的纠错能力范围内使用随机序列将秘密信息直接嵌入QR码中,从而实现复杂度很低的信息隐藏。实例仿真结果表明,该方案可以正常读取QR码封面信息,并且仅在拥有用户密钥时可以正常读取QR码中的隐藏信息。In order to protect the data security in the quick response code,an information hiding scheme based on QR code is designed in this paper.In this scheme,the coding module of the QR code is directly modified by using the error correction feature of the QR code.A random sequence is generated using a user key and a pseudo-random generator.The secret information is then embedded in the random code within the range of the error correction capability of the QR code,therefore information hiding with low complexitycan be realized.Experimental results show that the scheme can read the QR code cover information normally,and the hidden information in the QR code can be read normally only when the user key is owned.

关 键 词：快速响应码 信息隐藏 秘密共享 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]