Text Steganography using Extensions Kashida based on the Moon and Sun Letters Concept
نویسندگان
چکیده
Existing steganography methods are still lacking in terms of capacity. Hence, a new steganography method for Arabic text is proposed. The method hides secret information bits within Arabic letters using two features, which are the moon and sun letters and the redundant Arabic extension character “-” known as Kashida. The Arabic alphabet contains 28 letters, which are classified into 14 sun letters and 14 moon letters. This classification is based on the way these letters affect the pronunciation of the definite article (لا) at the beginning of words. This method uses the sun letters with one extension to hold the secret bits „01‟, the sun letters with two extensions to hold the secret bits „10‟, the moon letters with one extension to hold the secret bits „00‟ and the moon letters with two extensions to hold the secret bits „11‟. The capacity performance of the proposed method is then compared to three popular text steganographic methods. Capacity is measured based on two factors which are Embedding Ratio (ER) and The Efficiency Ratio (TER). The results show that the Letter Points and Extensions Method produces 24.91% and 21.56% as the average embedding ratio and the average efficiency ratio correspondingly. For the Two Extensions „Kashida‟ Character Method, the results for the average embedding ratio and the efficiency ratio are 56.76% and 41.81%. For the Text Using Kashida Variation Algorithm method, the average embedding ratio and the average efficiency ratio are 31.61% and 27.82% respectively. Meanwhile, the average embedding ratio and the efficiency ratio for the Proposed Method are 61.16% and 55.70%. Hence, it is concluded that the Proposed Method outweighs the other three methods in terms of their embedding ratio and efficiency ratio which leads to the conclusion that the Proposed Method could provide higher capacity than the other methods. Keywords—Text steganography; Arabic text; extension Kashida; capacity
منابع مشابه
High capacity steganography tool for Arabic text using 'Kashida'
Steganography is the ability to hide secret information in a cover-media such as sound, pictures and text. A new approach is proposed to hide a secret into Arabic text cover media using "Kashida", an Arabic extension character. The proposed approach is an attempt to maximize the use of "Kashida" to hide more information in Arabic text cover-media. To approach this, some algorithms have been des...
متن کاملImproving security and capacity for Arabic text steganography using 'Kashida' extensions
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 rep...
متن کاملAn Efficient Approach to Hide Compressed Voice Data in Arabic Text using Kashida and "La"
Corresponding Author: Jehad Q. Odeh Alnihoud Department of Compute Science, Al al-Bayt University, Mafraq, Jordan Email: [email protected] Abstract: In this research, we propose a new approach to increase the capacity and enhance the reliability of hiding voice data in Arabic text. Using Kashida to hide bits in Arabic text is one of the most promising approaches in steganography. Unfortunately,...
متن کاملA High Capacity Email Steganography Scheme using Dictionary
The main objective of steganography is to conceal a secret message within a cover-media in such a way that only the original receiver can discern the presence of the hidden message. The cover-media can be a text, email, audio, image, and video, which can be transmitted through a public channel, such as the Internet. By extending the use of email among Internet users, the provision of email steg...
متن کاملUtilizing Extension Character 'Kashida' with Pointed Letters for Arabic Text Digital Watermarking
This paper exploits the existence of the redundant Arabic extension character, i.e. Kashida. We propose to use pointed letters in Arabic text with a Kashida to hold the secret bit ‘one’ and the un-pointed letters with a Kashida to hold ‘zero’. The method can be classified under secrecy feature coding methods where it hides secret information bits within the letters benefiting from their inherit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2017