Çiftci Efe, Sümer Emre
Department of Computer Engineering, Çankaya University, Ankara, Turkey.
Department of Computer Engineering, Başkent University, Ankara, Turkey.
PeerJ Comput Sci. 2022 Aug 16;8:e1062. doi: 10.7717/peerj-cs.1062. eCollection 2022.
Digital steganography is the science of establishing hidden communication on electronics; the aim is to transmit a secret message to a particular recipient using unsuspicious carriers such as digital images, documents, and audio files with the help of specific hiding methods. This article proposes a novel steganography method that can hide plaintext payloads on digital halftone images. The proposed method distributes the secret message over multiple output copies and scatters parts of the message randomly within each output copy for increased security. A payload extraction algorithm, where plain carrier is not required, is implemented and presented as well. Results gained from conducted objective and subjective tests prove that the proposed steganography method is secure and can hide large payloads.
数字隐写术是在电子设备上建立隐秘通信的科学；其目的是借助特定的隐藏方法，使用数字图像、文档和音频文件等不易引起怀疑的载体，将秘密信息传输给特定的接收者。本文提出了一种新颖的隐写术方法，该方法可以在数字半色调图像上隐藏明文有效载荷。所提出的方法将秘密信息分布在多个输出副本上，并在每个输出副本内随机分散部分信息，以提高安全性。还实现并展示了一种无需明文载体的有效载荷提取算法。通过进行客观和主观测试获得的结果证明，所提出的隐写术方法是安全的，并且可以隐藏大量有效载荷。
