Stegnography

Steganography

Prepared By : Mr. Abhijeet A. MoreStudent from ADCET Ashta, Sangli.

Owner Of Perfect Training Center

Steganography

What is Steganography?

History

Steganography today

Steganography tools

Steganography

from the Greek word steganos meaning “covered” and the Greek word graphie meaning “writing”

Steganography is the process of hiding of a secret message within an ordinary message and extracting it at its destination.

Anyone else viewing the message will fail to know it contains hidden/encrypted data

Steganography (continued)

Modern digital Steganographydata is encryptedthen inserted and hidden, using a special

algorithm which may add and/or modify the contents of the file

This technique may simply append the data to the file, or disperse it throughout

Carefully crafted programs apply the encrypted data such that patterns appear normal

Carrier File Carrier File withHidden Message

Steganography Carrier files

bmpjpeggifwavmp3Amongst others…

Steganography Tools

SteganosS-Tools (GIF, JPEG)StegHide (WAV, BMP)Invisible Secrets (JPEG)JPHideCamouflageHiderman

Popular websites

Popular sites for Steganography informationhttp://www.ise.gmu.edu/~njohnson/Steganograp

hy

http://www.rhetoric.umn.edu/Rhetoric/misc/dfrank/stegsoft.html

http://www.topology.org/crypto.html

Implementation: Steganography

Hiding the file in jpeg without any software.

We can hide the confidential content in jpeg file

Requirements

Winrar

Command prompt

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Step 1: - Put all the files you wish to hide in the folder and put that folder in c:\hidden

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Step 2:-Now add those files in rar archieve eg-secret.rar in folder named hidden.

Step 3:-Now Look For Any jpeg image and name it logo.jpeg and put it in the folder hidden.

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Step 4:- Open command prompt make sure your working directory is c:/hidden

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Step 5:-Now type in cmd COPY /b logo.jpeg + secret.rar output.jpeg[logo.jpeg is the picture you want to show and secret.rar is the file u want to hide and output.jpeg is the file which contains both.

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Step 6:-After this you will see output.jpeg in c:/hidden.open it and it will show the picture .now try opening the same file via winrar :)

So In these Way we can stegnograph any king of extension and hide our sensitive information and make it secrete .

Thank you!!