Text Steganography Using Ligatures.

Sending information secretly and communicating covertly have been of great interest for ages. Steganography is one of the main methods for sending the data secretly. Steganography is the art of hiding data in a cover media such as image or audio. In this paper, a new method is proposed for hiding information in digital Unicode texts. In this method, the data is hidden in the ligatures of the text such as "fl" by using Unicode standard features. This method does not make any apparent changes in the original text and have a perfect perceptual transparency. [ABSTRACT FROM AUTHOR]