In recent years,the application of 2-Dimentional (2D) QR code has more and more extensive in E-commerce,accompanying with many security issues. Hence,the application and security issue of QR code in the E-commerce are studied by means of document re-search and experiment. The formation,origin and features of 2D QR code are summed up,diverse applications of QR code in current E-commerce including secure login,scanning shopping,electronic certificate,2-Dimensional code payment are introduced,and the emerging security issues such as physical attacks,privacy divulging,scanning attacks and so on summarized. Finally,by referring the attributions of information security,two improving ways of encryption of 2D code contents and offering authentication of the issued specific 2D code are summed up.%近年来,二维QR码在电子商务中的应用越来越广泛,但是随之也出现了许多关于二维码的安全问题.因此,主要采用文献调研以及实验实践的方法,研究了二维QR码在电子商务中的应用以及安全性问题.对二维QR码的构成、来源、特点进行了概述,对二维QR码在当今电子商务中各个方面的应用,如安全登录、扫描购物、电子凭证、二维码支付等,进行了介绍,并对二维QR码在电子商务应用中的安全性问题,如物理攻击、隐私泄露、扫描攻击等,进行了总结.从信息安全具体的安全属性出发,总结和提出了对二维码内容进行加密、对发布者发布的二维码提供身份认证机制这两大改进方向.
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