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22-02-2009, 01:52 AM
Post: #1
Music Steganography (Download Full Report And Abstract)
INTRODUCTION

Steganography comes from the Greek and literally means, "Covered writing". It is one of various data hiding techniques, which aims at transmitting a message on a channel where some other kind of information is already being transmitted. This distinguishes steganography from covert channel techniques, which instead of trying to transmit data between two entities that were unconnected before.
The goal of steganography is to hide messages inside other harmless messages in a way that does not allow any enemy to even detect that there is a second secret message present. The only missing information for the enemy is the short easily exchangeable random number sequence, the secret key, without the secret key, the enemy should not have the slightest chance of even becoming suspicious that on an observed communication channel, hidden communication might take place.
Steganography is closely related to the problem of hidden channels n secure operating system design, a term which refers to all communication paths that cannot easily be restricted by access control mechanisms. In an ideal world we would all be able to sent openly encrypted mail or files to each other with no fear of reprisals. However there are often cases when this is possible, either because the working company does not allow encrypted email or the local government does not approve of encrypt communication (a reality in some parts of the world). This is where steganography can come into play.

Data hiding techniques can also be classified with respect to the extraction process:

Cover Escrow methods need both the original piece of information and the encoded one in order to extract the embedded data.
Blind or Oblivious schemes can recover the hidden message by means only of the encoded data.

Steganography has developed a lot in recent years, because digital techniques allow new ways of hiding informations inside other informations, and this can be valuable in a lot of situations. The first to employ hidden communications techniques -with radio transmissions- were the armies, because of the strategic importance of secure communication and the need to conceal the source as much as possible.
Nowadays, new constraints in using strong encryption for messages are added by international laws, so if two peers want to use it, they can resort in hiding the communication into casual looking data. This problem has become more and more important just in these days, after the international Wassenaar agreement, with which around thirty of the major - with respect to technology - countries in the world decided to apply restrictions in cryptography export similar to the USâ„¢s ones.
Another application of steganography is the protection of sensitive data. A file system can be hidden in random looking files in a hard disk, needing a key to extract the original files. This can protect from physical attacks to people in order to get their passwords, because maybe the attacker canâ„¢t even know that some files are in that disk.
The major concern of steganography is stealth, because if an attacker, either passive or active, can detect the presence of the message, from that point he can try to extract it and, if encrypted, to decrypt it. The resistance to attempt at destruction or noise is not required, since we consider the sender and the receiver equally interested in exchanging messages, so that they will try to transmit the stego-medium in the best way they can. If the stego-data can be transmitted over the selected channel, and this is usually the case with all the media that are used, like images or sounds, then the embedded data will be preserved along with them. Thus, data hiding techniques for steganography must focus on the maximum strength against detection and extraction.
As a second request, we would prefer a high data rate, because we will usually want to be able to exchange any amount of data, from simple messages to top secret images.


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19-03-2010, 10:35 AM
Post: #2
RE: Steganography (Download Full Report And Abstract)
please read http://www.seminarprojectsThread-steganography-full-report--8121 for more about Steganography seminar information

Please Use Search http://seminarprojects.com/search.php wisely To Get More Information About A Seminar Or Project Topic
30-07-2010, 05:54 PM
Post: #3
Video RE: Steganography (Download Full Report And Abstract)
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03-08-2010, 11:21 AM
Post: #4
RE: Steganography (Download Full Report And Abstract)
pl gimme d full report on steganography
06-08-2010, 07:05 PM
Post: #5
RE: Steganography (Download Full Report And Abstract)
pls send me a full report about steganography to vinu.vidhya7[at]gmail.com .............
20-01-2011, 07:54 PM
Post: #6
RE: Steganography (Download Full Report And Abstract)
plsea send me full seminar report
22-01-2011, 11:54 AM
Post: #7
RE: Steganography (Download Full Report And Abstract)
hi
i can't send but you can download the full report from the below post.

http://www.seminarprojectsThread-steganography-download-full-report-and-abstract?pid=1639#pid1639
29-01-2011, 05:00 PM
Post: #8
RE: Steganography (Download Full Report And Abstract)
I need a full abstract on Steganography
01-02-2011, 10:19 AM
Post: #9
RE: Steganography (Download Full Report And Abstract)
plz send to me full report to my mail rajisurendra.m[at]gmail.com
01-02-2011, 11:02 AM
Post: #10
RE: Steganography (Download Full Report And Abstract)
hi
go through the following thread for more details on this topic.

http://www.seminarprojectsThread-steganography-full-report--8121?pid=11668#pid11668
06-02-2011, 08:52 AM
Post: #11
RE: Steganography (Download Full Report And Abstract)
hey pls send me a complete report of the steganography project including aal the necessary headings...
09-02-2011, 09:42 AM
Post: #12
RE: Steganography (Download Full Report And Abstract)
I wanna hav the abstract of steganography.
18-04-2011, 06:45 PM
Post: #13
RE: Steganography (Download Full Report And Abstract)
hey please send me if possible
21-12-2011, 05:29 PM
Post: #14
Thumbs Up RE: Steganography (Download Full Report And Abstract)
any ideas for cryptographyAngel
22-12-2011, 09:57 AM
Post: #15
RE: Steganography (Download Full Report And Abstract)
i can't send but you can download the full report from the "Steganography" bellow.

http://www.seminarprojectsThread-steganography-download-full-report-and-abstract?pid=1639#pid1639
19-01-2012, 10:04 AM
Post: #16
RE: Steganography (Download Full Report And Abstract)
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11-02-2012, 01:26 PM
Post: #17
RE: Steganography (Download Full Report And Abstract)
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21-03-2012, 10:14 AM
Post: #18
RE: Steganography (Download Full Report And Abstract)
thankkkkk u for giving this report........expecting moreeeee


Attached File(s)
.doc  DIGITAL IMAGE PROCESSING full report.DOC (Size: 61.5 KB / Downloads: 22)
24-03-2012, 11:44 AM
Post: #19
RE: Steganography (Download Full Report And Abstract)
plz send me full report and coding as soon as possible...awaiting for reply...
Thanks
20-07-2012, 10:05 AM
Post: #20
RE: Steganography (Download Full Report And Abstract)
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23-07-2012, 12:37 PM
Post: #21
RE: Steganography (Download Full Report And Abstract)
Steganography


.docx  Steganography.docx (Size: 409.02 KB / Downloads: 41)

INTRODUCTION
OVERVIEW


The Steganography is used for secret data transmission. Steganography is derived from the Greek word steganos which means “covered” and graphia which means“writing”, therefore Steganography means “covered writing”. In steganography the secret image is embedded in the cover image and transmitted in such a way that the existence of information is undetectable. The digital images, videos, sound files and other computer files can be used as carrier to embed the information. The object in which the secret information is hidden is called covert object. Stego image is referred as an image that is obtained by embedding secret image into covert image. The hidden message may be plain text, cipher text or images etc. The steganography method provides embedded data in an imperceptible manner with high payload capacity. Encrypting data provides data confidentiality, authentication, and data integrity. Steganography, copyright protection for digital media and data embedding are the data hiding techniques. Steganography is a method of hiding secret information using cover images. Copyright marking classified into watermarking and fingerprinting.

Watermarking is the process of possibly irreversibly embedding information into a digital signal. The signal may be audio, pictures or video etc. Fingerprinting attaches a serial number to the copy of digital media. Copyright protection prevents illegal transfer of data. In data embedding systems the receiver will know about the hidden message and the task is to decode the message efficiently.
The main aspect of steganography is to achieve high capacity, security and robustness. Steganography is applicable to (i) Confidential communication and secret data storing(ii) Protection of data alteration (iii) Access control system for digital content distribution, (iv) Media Database systems etc. The various steganographic techniques are:
(i) Substitution technique: In this technique only the least significant bits of the cover object is replaced without modifying the complete cover object. It is a simplest method for data hiding but it is very weak in resisting even simple attacks such as compression, transforms, etc.
(ii)Transform domain technique: The various transform domains techniques are Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT) and Fast Fourier Transform (FFT) are used to hide information in transform coefficients of the cover images that makes much more robust to attacks such as compression, filtering, etc.
(iii) Spread spectrum technique: The message is spread over a wide frequency bandwidth than the minimum required bandwidth to send the information. The SNR in every frequency band is small. Hence without destroying the cover image it is very difficult to remove message completely.
(iv)Statistical technique: The cover is divided into blocks and the message bits are hidden in each block. The information is encoded by changing various numerical properties of cover image. The cover blocks remain unchanged if message block is zero.
(v) Distortion technique: Information is stored by signal distortion. The encoder adds sequence of changes to the cover and the decoder checks for the various differences between the original cover and the distorted cover to recover the secret message

MOTIVATION

The development in technology and networking has posed serious threats to obtain secured data communication. This has driven the interest among computer security researchers to over come the serious threats for secured data transmission. One method of providing more security to data is information hiding. The approach to secured communication is cryptography, which deals with the data encryption at the sender side and data decryption at the receiver side. The main difference between steganography and cryptography is the suspicion factor. The steganography and cryptography implemented together, the amount of security increases. The steganography make the presence of secret data appear invisible to eaves droppers such as key loggers or harmful tracking cookies where the users keystroke is monitored while entering password and personal information.

LITERATURE SURVEY

Neil F. Johnson and sushiljajodia et al., [1] have provided several characteristics in information hiding methods to identify the existence of a hidden messages and also identify the hidden information. The images are reviewed manually for hidden messages and steganographic tool to automate the process. The developed tool is to test robustness of information hiding techniques in images such as warping, cropping rotating and blurring.
Giuseppe Mastronardi et al., [2] have studied the effects of Steganography in different image formats (BMP, GIF, JPEG and DWT) and proposed two different approaches for lossless and lossy image. They are based on the creation of an “adhoc” palette for BMP and GIF images.
Tong and QIU Zheng-ding [3] have proposed a Quantization-based Steganography scheme. In this method the secret message is hidden in every chrominance component of a color image and the hiding capacity is higher than that of the popular Steganography software. Since the Quantization-based hiding method is free from the interference and simulation results the hidden message can be extracted at low BER and our scheme is robust to common attacks.
Jessica Fridrich et al., [4] have proposed a new higher-order Steganalytic method called Pairs Analysis for detection of secret messages embedded in digital images. Although the approach is in principle applicable to many different Steganographic methods as well as image formats, it is ideally suited to 8-bit images, such as GIF images, where message bits are embedded in LSBs of indices to an ordered palette. The Ezstego algorithm with random message and optimized palette order is used as an embedding archetype on which we demonstrate Pairs Analysis and compare its performance with the chi-square attacks.
Yuan-Yu Tsai and Chung-Ming Wang [5] have proposed a novel data hiding scheme for color images using a BSP tree.This method shows high capacity with little visual distortion. Furthermore, there is an advantage of the tree data properties to improve the security of embedding process, making it difficult to extract the secret message without the secret key provided.
Jun Zhang et al., [6] have proposed detection of steganographic algorithms based on replacement of the Least Significant Bit (LSB)plane. Since LSB embedding is modeled as an additive noise process, detection is especially poor for images that exhibit high-frequency noise.
M.Mahdavi et al., [7] presented a steganalysis method for the LSB replacement. The method is based on the changes that occur in histogram of an image after the embedding of data. It is less complex and more accurate than the RS steganalytic method for the images which are acquired directly from scanner without any compression. The RS method needs to count the number of regular and singular groups twice and also require LSB flipping for the whole image. This method has better average and variance of error comparing to RS steganalytic method
Jan Kodovsky and Jessica Fridrich [8] worked out the specific design principles and elements of steganographic schemes for the JPEG format and their security. The detect ability is evaluated experimentally using a state of art blind steganalyser.
L.Y. Por et a,[9] proposed a scheme embeds a larger-sized secret image while maintaining acceptable image quality of the stego-image and also improved image hiding scheme for grayscale images based on wet paper coding.
OBJETIVE OF THE REPORT
To design a novel image steganography technique based on discrete wavelet transform and to analyze its efficiency and security using various attacks.


ORGANISATION OF THE REPORT
STEGANOGRAPHY IN HISTORY


Steganography is the art and science of writing hidden messages in such a way that no-one apart from the sender and intended recipient even realizes there is a hidden message. By contrast, cryptography obscures the meaning of a message, but it does not conceal the fact that there is a message. Today, the term steganography includes the concealment of digital information within computer files. For example, the sender might start with an ordinary-looking image file, then adjust the color of every 100th pixel to correspond to a letter in the alphabet—a change so subtle that someone who isn't actively looking for it is unlikely to notice it.
26-12-2012, 01:13 PM
Post: #22
RE: Steganography (Download Full Report And Abstract)
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I want steganography full report for download please send it
27-12-2012, 12:43 PM
Post: #23
RE: Steganography (Download Full Report And Abstract)
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28-12-2012, 10:16 PM
Post: #24
RE: Steganography (Download Full Report And Abstract)
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07-01-2013, 11:24 AM
Post: #25
RE: Steganography (Download Full Report And Abstract)
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