Subj : Cracking Steganography
To   : Warmfuzzy
From : Geo
Date : Fri Jun 08 2018 21:54:09

  Re: Cracking Steganography
  By: warmfuzzy to All on Fri Jun 08 2018 13:38:14

 > Hi,
 > One interesting thing to do with stegangraphy is the ability to determine
 > the contents of the hidden message by doing a hash of the original picture
 > compared to the processed picture.  If the hash is different and the two
 > pictures are of the same size, you've got proof that the image has been
 > altered.  It is advised to only steganographically process an image a single
 > time and to have that original image originate from the person using the
 > stego software so that you can delete the original such that a comparison of
 > the original to the modified cannot be preformed.
 >

Another best practice is also to include the strenography adapted picture
within a group of other
pictures that have not been altered in any way. Then use some out of band
communication method to inform
the intended recipient which picture to process.

8-)

Or so I am told 8-)


Regards..Geo
ooooOOOOoooo
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