| 摘要: |
| 随着物流行业的不断发展,快递已经在人类生活中扮演了重要角色。企业和个人通过快递可以方便地寄收物件。快递运输中通常使用QR码作为快递标签传递物流信息。然而,未做隐私保护的快递标签可能会导致用户的物流隐私泄露。针对当前物流系统中对企业组织和个人隐私泄露的问题,本文提出了一种基于QR码隐写和多级加密的物流隐私保护系统。在不改变QR码扫描结果和功能的条件下,该系统利用QR码自身纠错功能实现了隐写加密数据到物流QR码上。本系统采用AES算法对隐私信息进行加密并使用MD5哈希作为密钥派生算法,来实现多级加密和限制隐私访问权限;使用RSA算法传递密钥,确保加密传递的密钥只能被收件方解密。隐写了加密数据的QR码与原始QR码相比,差异不大并且解码结果一致。这有效地从用户的角度保护了收件/寄件方的隐私并且隐藏了隐写数据的存在事实。本文首次针对自身隐私保密要求高的企业组织快递物流的隐私保护问题提出了有效的解决方案。实验部分显示了提出的系统在物流隐私保护方面的有效性。容量实验显示QR码最高可隐写9720比特的隐私数据,同时鲁棒性实验表明隐写后的QR码能够抵抗不同的物理失真(例如,自然纹理,角度和距离)。为推动快递物流隐私保护的发展,本系统代码已开源于Gitee。 |
| 关键词: 物流隐私 隐写术 二维码 |
| DOI：10.19363/J.cnki.cn10-1380/tn.2023.03.01 |
| Received:October 12, 2021Revised:February 11, 2022 |
| 基金项目: |
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| A Logistics Privacy Protection System Based on Quick-Response Barcodes Steganography |
| TAO Jing,LUO Zhenhao,WANG Baosheng,XING Qianqian |
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| Abstract: |
| With the continuous development of the logistics industry, express delivery has played an important role in society. Businesses and individuals can easily send and receive items through express delivery. In the process of express delivery, QR code is usually used as express labels to transmit express information. However, unprotected express labels may lead to the leakage of user privacy. Aiming at protecting the leakage of companies and personal privacy in the current logistics system, we propose and implement a logistics privacy protection system based on QR code steganography and multi-level encryption. Without changing the QR code scanning results, the system uses the error correction capability of the QR code to realize the steganography of encrypted data into the logistics QR code. The proposed system uses the AES algorithm as the encryption algorithm for private information, and the MD5 hash algorithm as the key derivation algorithm to achieve multi-level encryption and restricted privacy access rights; the RSA algorithm is used to ensure that the encrypted key can only be decrypted by the recipient. The QR code that hides the encrypted data is almost the same as the original QR code and the decoded result is the same, which effectively protects the privacy of the recipient/sender from the user’s perspective and hides the existence of steganographic data. As far as we know, this is the first effective solution designed for companies that require high privacy and confidentiality to protect their sensitive logistics information. The experiments demonstrate the effectiveness of the proposed system in logistics privacy information protection. The capacity experiment shows that our system can accommodate up to 9720 bits of secret data, and the robustness experiment shows that the steganographic QR code is robust against different physical noises (e.g., natural texture, angle, and distance). To promote the development of express logistics privacy protection, we release the source code of our program on Gitee. |
| Key words: logistics privacy steganography quick-response barcodes |
