Q70 : Steganography in Persian text using statistical methods
Thesis > Central Library of Shahrood University > Computer Engineering > MSc > 2015
Authors:
Hajar Nadimi [Author], Morteza Zahedi[Supervisor], Ali Pouyan[Advisor]
Abstarct: Creation and Development of a secure platform for digital communication is one of the initial and basic requirements of digital world. With expansion of the Internet functionality along with rapid growth on digital data technology, the need is increasing for a secure communication platform, where data can be exchanged securely. Providing a secure communication between transmitter and receiver is objective. There are several means to achieve this goal. Encryption is one of the methods which can be utilized. In encryption, process of encoding messages or information can be carried out in such a way that only authorized parties can read it. Steganography is the other method in providing secure communication. The practice of concealing messages or information within other non-secret text or data is called Steganography. In this paper we use pseudo space character and normal space character for hiding bits.in Arabic alphabet there are both non joiner letters and joiner letters, pseudo characters are used in non-joiner letters to increase capacity of Steganography up to 1.31 times of conventional method. Security of steganography can be boosted by variation in used algorithm with changing of interpretation of bits either one or zero. To increase the resistance of Steganography, message should be repeated in text several times, just one after the other. This will ensure that in extraction sequence all errors can be detected with comparing of extracts and correct message can be obtained. In addition, resistance of steganography can be enhanced by combining of different properties of pseudo character e.g. (type, size, color, boldness and italic shape). In this mode all properties will be compared to each other to be able to extract correct message without any error. Considering all above, these two methods will ensure up to 99.77% increase in resistance of steganography which is depicting high resistance of this method.
Keywords:
#Steganography #Pseudo space Character #Steganography resistance #Steganography capacity #Steganography security Link
Keeping place: Central Library of Shahrood University
Visitor: