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!!
