The 7th ACS/IEEE International Conference on Computer Systems and Applications (AICCSA-2009), Rabat, Morocco, 10-13 May 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

Dhahran 31261, Saudi Arabia

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.