Images, audio, and video are commonly used for steganography. However, text is an ideal mediumfor steganography due to its ubiquity and smaller size. Text steganography involves hidinginformation within text. Traditional steganographic methods using multimedia files often rely onreplacing the least significant bit of the original data with a bit mask of the hidden information. Inthis paper, we adapt this method for text steganography. We present an algorithm that uses amodified least significant bit approach to subtly alter the color parameters of text characters in aMicrosoft Office Word file by modifying the low-order bits of the RGB color channels of the textcharacters. These changes are completely imperceptible to the human eye. We have developedsoftware that implements this algorithm, allowing for the embedding and extraction of hiddeninformation.
Yalova et al. (Fri,) studied this question.