This paper introduces a novel method for Arabic text steganography for irreversible practical usage that involves using the spaces in Unicode standard. The method also benefits from several characters in the Arabic language that can be changed based on their locations within words. The main innovation of this proposed method is the utilization of the different typescripts of Unicode standard for each letter shape. The technique also utilizes spaces and other Unicode features of Arabic e-text to hide secret data. This method depends on the use of contextual forms of Arabic characters and whitespaces to irreversibly hide certain specific secret bits. Additionally, the method employs the extra characters zero-width-joiner and Kashida to further enhance embedding capacity while preserving maximum security. The research implementation experiments show that this technique outperforms most available existing irreversible methods in both capacity and security. Moreover, this procedure can be widely adopted in related languages, such as Urdu and Farsi, due to their use of similar Unicode features, which is the encoding standard used in most of the world’s writing systems.

本文介绍了一种不可逆的实际使用方式，用于阿拉伯文字隐写术的新方法，该方法涉及使用Unicode标准中的空格。该方法还受益于阿拉伯语中的几个字符，可以根据它们在单词中的位置进行更改。该提议方法的主要创新之处在于针对每个字母形状使用了Unicode标准的不同打字稿。该技术还利用阿拉伯电子文本的空格和其他Unicode功能来隐藏秘密数据。此方法取决于使用上下文形式的阿拉伯字符和空格来不可逆地隐藏某些特定的秘密位。另外，该方法采用了额外的字符零宽度连接符和Kashida来进一步增强嵌入能力，同时保留最大的安全性。研究实施实验表明，该技术在容量和安全性方面均优于大多数现有的不可逆方法。此外，由于使用了类似的Unicode功能，该程序可以在相关语言（例如Urdu和Farsi）中广泛采用，这是世界上大多数书写系统使用的编码标准。