Steganography Using Text Embedding in Sound Files

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  • Topic: WAV, Resource Interchange File Format, Cryptography
  • Pages : 36 (8107 words )
  • Download(s) : 625
  • Published : March 30, 2012
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Steganography
Using
Text Embedding
In

Sound Files

DEVELOPED BY

Nandini Chakraborty(MCA/2004/007)
Saikat Dasgupta(MCA/2004/027)
Abhik Ray(MCA/2004/049)

Under Guidance Of---

Hrishikesh Bhaumik
Lecturer, Department of I.T.
RCC Institute of Information Technology

Acknowledgement

At the very beginning we would like to thank Prof. Hrishikesh Bhaumik, Lecturer, RCC Institute of Information Technology for being our project guide. Without his help it would have been impossible for us to develop the project. We also are deeply grateful to our departmental head Prof. Chhanda Ray, who constantly helped and encouraged us throughout the duration of the project.

We also thank those people who collected references and made them available on the Internet. Without their help it would have been impossible for us to complete the project.
Many of our teachers, friends and seniors also helped us with whatever experience they had about the subject. We are grateful to them for sharing their valuable time with us.
At last but not least, we thank our parents who inspired us and gave us all the support.

Nandini Chakraborty(MCA/2004/007)
Saikat Dasgupta(MCA/2004/027)
Abhik Ray(MCA/2004/049)

5th Semester
MCA Department,
RCC Institute of Information Technology.

Contents

TopicsPage Number

Project Objective3
Introduction4
Preliminary Investigations9
Project Scope

Feasibility Study10
Technical Feasibility
Operational Feasibility
Economic Feasibility

Requirement Analysis12

Software Requirement Specifications (Functional Requirements)14 Development Strategy16
Project Scheduling18
Gantt Charts
PERT/CPM

Logical Design22
Context Diagram
Level 1 DFD

Research24
RSA algorithm
Analog Audio Signals
WAVE File Format
Steganography process

Physical Design33
Platform used
GUI Development software used

Testing of Project35

Program Code 38

Future Scope51

User Manual52

Conclusion 63

Bibliography 64

Project Objective

The objective of the project is to develop a system to implement steganography using digital sound files. The system will provide its users the means to encode a text message in a sound file and also to extract the original message from the file. Thus this project involves the manipulation of sound files, especially WAV files where the sound is stored in Pulse Code Modulation uncompressed format. These files contain audio samples that have been converted to digital audio using the Pulse Code modulation format. he text data has to be embedded in the sound file ensuring minimum distortion of the sound which will be undetectable to the human ear.

Introduction

Steganography is the art and science of writing hidden messages in such a way that no one apart from the intended recipient knows of the existence of the message; this is in contrast to cryptography, where the existence of the message itself is not disguised, but the content is obscured.

The word "Steganography" is of Greek origin and means "covered, or hidden writing". Its ancient origins can be traced back to 440 BC. Herodotus mentions two examples of Steganography in The Histories of Herodotus [1]. Demeratus sent a warning about a forthcoming attack to Greece by writing it on a wooden panel and covering it in wax. Wax tablets were in common use then as...
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