Stegnography

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Stegnography

  1. 1. Steganography Prepared By : Mr. Abhijeet A. More Student from ADCET Ashta, Sangli. Owner Of Perfect Training Center
  2. 2. Steganography What is Steganography? History Steganography today Steganography tools
  3. 3. 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
  4. 4. Steganography (continued) Modern digital Steganography data is encrypted then 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
  5. 5. Carrier File Carrier File with Hidden Message
  6. 6. Steganography Carrier files bmp jpeg gif wav mp3 Amongst others…
  7. 7. Steganography Tools Steganos S-Tools (GIF, JPEG) StegHide (WAV, BMP) Invisible Secrets (JPEG) JPHide Camouflage Hiderman
  8. 8. Popular websites Popular sites for Steganography information http://www.ise.gmu.edu/~njohnson/Steganography http://www.rhetoric.umn.edu/Rhetoric/misc/dfrank/ stegsoft.html http://www.topology.org/crypto.html
  9. 9. Implementation: Steganography Hiding the file in jpeg without any software. We can hide the confidential content in jpeg file
  10. 10. Requirements Winrar Command prompt
  11. 11. 08/11/13 Step 1: - Put all the files you wish to hide in the folder and put that folder in c:hidden
  12. 12. 08/11/13 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.
  13. 13. 08/11/13 Step 4:- Open command prompt make sure your working directory is c:/hidden
  14. 14. 08/11/13 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.
  15. 15. 08/11/13 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 .
  16. 16. Thank you!!

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