Covert QR Codes: How to Hide in the Crowd

被引：4

作者：

Chow, Yang-Wai ^{[1
]}

Susilo, Willy ^{[1
]}

Baek, Joonsang ^{[1
]}

机构：

[1] Univ Wollongong, Sch Comp & Informat Technol, Inst Cybersecur & Cryptol, Wollongong, NSW, Australia

来源：

INFORMATION SECURITY PRACTICE AND EXPERIENCE, ISPEC 2017 | 2017年 / 10701卷

关键词：

Covert message; Data hiding; Error correction; QR code; Secret sharing; SECURE;

D O I：

10.1007/978-3-319-72359-4_42

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper investigates a novel approach of distributing a hidden message via public channels. The proposed approach employs visual subterfuge to conceal secret information within a QR code. Using a QR code reader, any individual can decode the public information contained in the QR code. However, only authorized users who have the necessary credentials will be able to obtain the secret message, which is encoded in the form of a secret QR code. We call this a Covert QR (CQR) code scheme. To embed the secret information, this approach exploits the error correction mechanism inherent in the QR code structure. By using QR codes to conceal information, the proposed scheme has the advantage of reducing the likelihood of attracting the attention of potential adversaries. In addition, the information in QR codes can be scanned and decoded through the visual channel. As such, the secret information can be distributed on printed media and is not restricted to an electronic form.

引用

页码：678 / 693

页数：16

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