Development of information hiding system based on AVI format
Other Title(s)
تطوير نظام إخفاء المعلومات مبني على صيغة ملف صوتي صوري متداخل
Dissertant
Thesis advisor
Comitee Members
Namik, Sarcote
al-Jumah, Basim Abd al-Baqi
Said, Waladin Khayri
al-Khafaji, Husayn K.
University
University of Technology
Faculty
-
Department
Department of Computer Engineering
University Country
Iraq
Degree
Master
Degree Date
2007
English Abstract
Digital communication has become an essential part of infrastructure nowadays, a lot of applications are Internet-based and in some cases it is desired that communication be made secret.
Consequently, the security of information has become a fundamental issue, many of the techniques are available to achieve this goal some of them are the Encryption and the steganography techniques.
Using cryptography, the information is transformed into some other gibberish form and then the encrypted information is transmitted.
Steganography is a process that involves hiding a message in an appropriate carrier, the carrier can then be sent to a receiver without anyone else knowing that it contains a hidden message. The aim of this project is to develop an AVI (Audio Video Interleave) Hiding Information System (HIS) based on steganography techniques to prevent intruders to obtain the transmitted information.
This work is based on a combination of steganography and cryptography techniques to increase the level of security and to make the system more complex to be defeated by attackers. In this work AVI file is separated into two parts, video and audio. The video is a stream of frames; each frame is stored as a BMP file image and a number of frames required or needed to be used as a cover is chosen. The audio part of the AVI file is separated as WAV (Window for Audio Visual) file format. The algorithm that is used for encryption is the Blowfish.
Blowfish can be used as a replacement for the DES (Data Encryption Standard) or IDEA (International Data Encryption Standard) algorithms.
It is a symmetric (that is, a secret or private key) 64-bit block cipher that uses a variable-length key, from 32 bits to 448 bits, a variable-length key would make cryptoanalysis more difficult for potential attackers.
Two methods of hiding are used in this work, the first method is the Least Significant Bit (LSB) and the second is the Haar Wavelet Transform (HWT). The proposed HIS system was tested using standard objective measures such as Mean Square Error (MSE) and Peak Signal to Noise Ratio (PSNR).
All of the measures obtained as the test results indicate good results for PSNR and they increase when the number of frames used as a cover increases.
The resultant stego-file is then transmitted without drawing any suspicion, so the main goal of steganography is performed. The reconstructed data is the same as secret data.
Main Subjects
Information Technology and Computer Science
No. of Pages
94
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction.
Chapter Two : Information hiding techniques for AVI file.
Chapter Three : Design and Implementation of the proposed HIS.
Chapter Four : Experimental results and system evaluation.
Chapter Five : Conclusions and suggestions for future work.
References.
American Psychological Association (APA)
Ghazul, Suzan Sabah. (2007). Development of information hiding system based on AVI format. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-749821
Modern Language Association (MLA)
Ghazul, Suzan Sabah. Development of information hiding system based on AVI format. (Master's theses Theses and Dissertations Master). University of Technology. (2007).
https://search.emarefa.net/detail/BIM-749821
American Medical Association (AMA)
Ghazul, Suzan Sabah. (2007). Development of information hiding system based on AVI format. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-749821
Language
English
Data Type
Arab Theses
Record ID
BIM-749821
