Abstract
In every system of security, to keep important data confidential, we need a high degree of protection. Steganography can be defined as a way of sending confidential texts through a secure medium of communications as well as protecting the information during the process of transmission. Steganography is a technology that is used to protect users' security and privacy. Communication is majorly achieved using a network through SMS, e-mail, and so on. The presented work suggested a technology of text hiding for protecting secret texts with Unicode characters. The similarities of glyphs provided invisibility and increased the hiding capacity. In conclusion, the proposed method succeeded in securing confidential data and achieving high payload capacity by using the Huffman compression algorithm, which was implemented on an unlimited text length. In addition, this approach has the ability to hide a single bit in every digit or letter in the cover file. Also, the approach meets the cognitive transparency and does not make the modifications apparent on the original data. The method suggested in this work increases the security level through coding a secret message before embedding it within the cover text, with the use of the Advanced Encryption Standard (AES) algorithm.
Highlights
The importance of information hiding for securing communications has been increasingly growing because of the developments in communications, web, and information technology
Steganography can be defined as a process that is used to secure a secret by hiding, its presence might not be noticed
To test the results of the Unicode process. This technology helps to hide the maximum number of the characters, increase performance, and achieve high payload capacity
Summary
The importance of information hiding for securing communications has been increasingly growing because of the developments in communications, web, and information technology. It transforms all the characters of the hidden message into emoticons based on a basic pattern and embeds the emoticons via the cover text between words In reality, this method has high capacity and clear transparency (low invisibility), but suffers from low robustness against attacks. Odeh et al [15] used ZWCs) Zero width character) to conceal hidden message bits within an MS Word format They suggested a new text-masking algorithm called ZW-4B. Stojanov et al.[17] described the format-based methods of text steganography in Ms-Word files that belong to a proposed system for hiding data that is called Property coding. AES structure is provided in Figure 1 [20]
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