Two-dimensional barcode is an optical machine-readable label widely used for information transmission. The QR code contains data easily read by any QR code scanner, which may lead to privacy leaks of sensitive information. To protect private information, many scholars use data hiding technology to implant a pre-delivered sensitive message into QR code. In the present survey, we introduce the embedding strategies of existing secret hiding schemes for QR code application. Besides, we show the performance comparison of five representatives in the term of embedding capacity and robustness.
Data hiding, Steganography, QR code, Privacy protection.
Authors and contacts:
Peng-Cheng Huang, College of Computer and Information Engineering, Xiamen University of Technology, No.600 Ligong Road, Jimei District, Xiamen, 361024, Fujian Province, China, firstname.lastname@example.org
Ching-Chun Chang*, Department of Computer Science, University of Warwick, Coventry CV4 7AL, U.K., email@example.com
Peng-Cheng Huang，Ching-Chun Chang, “A survey of QR code solutions for hiding secret messages”, Journal of Computer Security and Data Forensics, Vol. 1, No. 1, pp. 29~41, March 2021.