The 7th ACS/IEEE
International Conference on Computer Systems and Applications (AICCSA-2009),
Improving Security
and Capacity for Arabic Text Steganography Using 'Kashida'
Extensions
Fahd Al-Haidari Adnan Gutub Khalid Al-Kahsah Jameel Hamodi
Collage of Computer Sciences & Engineering
King Fahd University of Petroleum and Minerals
fahdhyd@kfupm.edu.sa, gutub@kfupm.edu.sa, kkahsah@hotmail.com, jamil_hamodi@yahoo.com
Abstract— Steganography is a method of hiding
data within a cover media so that other individuals fail to realize their
existence. In this paper, a new approach for steganography in Arabic texts is
proposed. The main idea is that each
Arabic word may have some characters which can be extended by 'Kashida'. The ranks 'locations' of such characters and the
inserted Kashida, construct a coding method to
represent a block of secret bits. Different
scenarios have been proposed based on the maximum number of Kashida
possible to be inserted per word. The approach was compared to some existing
Arabic text steganography approaches in terms of capacity and security. It is
shown that this proposed approach outperforms the others with interesting
promising results.
Keywords: Arabic text, Cryptography, Feature coding,
Information security, Steganography, Text watermarking.