EQRC: An Enhanced QR Code-Based Secure E-coupon Transaction Framework

Rui Liu, Jun Song, Zhiming Huang, Jianping Pan

Abstract: In recent years, with the rapid development and popularization of QR code-based services, the research of QR codes has become a hot topic. Because QR codes are easy to use, they are well adopted in e-coupon-based payment services. However, there are many security threats to QR codes, including QR code forgery, privacy information leakage and so on. To address these security problems, in this paper, we first propose a novel fragment coding-based approach for QR codes using the idea of visual cryptography. Second, we propose a QR code scheme with a high security by combining the fragment coding with commitment technique. Then, an enhanced QR code-based secure e-coupon transaction framework is presented, which has a triple verification feature. This framework can provide at least the following properties: high information confidentiality, difficult to tamper with and forge, and the ability to resist collusion attacks. Finally, security analysis and performance evaluation are presented to show the security and efficiency of the proposed framework.