Regulating Kashida Arabic steganography to improve security and capacity performance

This research work proposed a system that improves Arabic text steganography. The paper’s primary goal is to advance confidentiality and capacity, as important aspects of security data hiding within stego Arabic text acceptable robustness practicality. The current security performance needs research to have more capacity of hidden bits preserving the inability of attackers to find out the hidden secrets inside the intended media. The paper exploitation improves by utilizing the ‘Kashida’ redundant extension, Arabic language characters, to positively regulate hiding private data. The work proposes three different novel Kashida models for securing privacy bits in the text without destroying its content and appearance. The research is analyzed on Imam Nawawi’s forty hadith script following standard Arabic text benchmark experimentations. The proposals showed various pros and cons, remarking that the third scheme (Model 3) showing a high amount of embedding opportunity in many cases averaged to be above 33%. Model 1 provides more ambiguity, with an average of 57% figure-of-merit approximation, though all models are showing comparable similar remarks making their confidentiality approximation practically acceptable. The work comparative analysis further linked to others remarking Model 3 as the best in an interesting attractive performance trade-off remarks, to be used further for specific Arabic secrecy studies and future relevant developments and investigations to come. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.