Unicode with rules Arabic text data hiding

Abstract

AbstractText documents are the unavoidable form of information communication among humans, researchpapers on text hiding techniques are less in contrast to other cover object’s techniques. This is due tothat text documents have relatively less number of features (less redundant), that can be used to hidedata in comparison with other cover object types (image, audio, and video). In this paper, text hiding(Text-in-Text data hiding), algorithms is proposed and then coded in Matlab (m-files) form. Thealgorithm represents a new technique. It has many advantages over other existing text-in-text hidingtechniques. These advantages include the usage of Arabic or Arabic-English mixed for both thesecret and cover text with the aids of two of the nonprinting Unicode characters. Also applying newhiding rules concerning Arabic writing system. The cover text classified into groups of Arabic letterseach with specific features and thus hiding text between letters from these groups must be controlledby these new text hiding rules. Matlab programs for embedding and extracting the secret text,according to the new approach, are tested and the outputs have been found very satisfying. Bothsecret and cover text have the same original format and text configuration.