Steganography Search and Reconstruction Techniques

Computer Science
Price: $5 USD

Question description

Application: Steganography Search and Reconstruction Techniques

Steganography is a type of cryptography for digital media. A secret message can be hidden in digital pictures by changing a few of the pixel colors; this change, however, does not alter the picture's appearance unless you look very closely, and sometimes you must still use special tools to detect the difference. These changed colors represent characters that can encode a secret message. For this assignment, you will look for hidden messages in images.


Consider the following scenario: While you were exploring a suspect's computer, you found this list of free steganography tools:

  • 4t HIT Mail Privacy
  • S-Tools
  • Text Hide
  • Xiao Steganography

You also found this archive of suspicious images:

You think that someone may have hidden a secret message in the files, and it is your job to find it.
    Every steganography tool encodes data a little differently, and you may have to guess at a password. In general, you can expect a good deal of trial and error when you try to match a tool to a file. Fortunately, your suspect isn't too smart, and he or she used a different tool to hide the same secret message in each of the suspicious images. Crack any one and you're done. Of course, a real-life criminal could make the problem considerably more difficult!
    Prepare a 1- to 2-page report to document your findings. Include the following:

  • A list of the tools you tried and the URL where you found them.
  • Your general approach to the problem.
  • The identity of the tool that found the message, and the name of the file it unlocked.
  • The text and password of the secret message.

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