WoSPA 2008 5th IEEE International Workshop on Signal Processing and its Applications, UNIVERSITY OF SHARJAH, SHARJAH, U.A.E. 18 20 MARCH 2008




Adnan Abdul-Aziz Gutub, Yousef Salem Elarian, Sameh Mohammad Awaideh, Aleem Khalid Alvi


Computer Engineering Department, King Fahd University of Petroleum & Minerals, Saudi Arabia




Steganography techniques are concerned with hiding the existence of data in other cover media. Today, text steganography has become particularly popular. This paper presents a new idea for using Arabic text in steganography. The main idea is to superimpose multiple invisible instances of Arabic diacritic marks over each other. This is possible because of the way in which diacritic marks are displayed on screen and printed to paper. Two approaches and several scenarios are proposed. The main advantage is in terms of the arbitrary capacity. The approach was compared to other similar methods in terms of overhead on capacity. It was shown to exceed any of these easily, provided the correct scenario is chosen.


Keywords Arabic; capacity; diacritic marks; steganography; text hiding.