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 Forum index » House Training » HOWTO ( Solutions )
Hide, or send, sensitive data in plain sight...with Steg!
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Mike Walsh


Joined: 28 Jun 2014
Posts: 3800
Location: King's Lynn, UK.

PostPosted: Sun 25 Feb 2018, 20:44    Post subject:  Hide, or send, sensitive data in plain sight...with Steg!
Subject description: A novel way to hide sensitive personal data so that nobody would ever suspect it was there!
 

Evening, all.

Ever heard of Steganography? Me neither.....until this evening. I came across it on MakeUseOf.com:-

https://www.makeuseof.com/tag/hide-files-inside-images-linux/

According to Wikipedia, steganography is

"...the practice of concealing a file, message, image, or video within another file, message, image, or video. The word steganography combines the Greek words steganos (στεγανός), meaning "covered, concealed, or protected," and graphein (γράφειν) meaning "writing"." The practice was first developed over 500 years ago, apparently; this is the modern, 'digital' way to do it.

This rather neat little Qt-based app was written about 4-5 years ago by a guy named, simply, 'Fabio'.

http://www.fabionet.org/

It's Qt 4.8.4-based.....but there's no need to install anything extra, as the few core Qt files it requires to run are all included within the single directory. I've run up a .pet package, for anyone who'd like to have a play with it. It installs to /usr/share, and you'll find it under Menu->Utility.

http://www.mediafire.com/file/gbknd8a6byraymg/Steg-1.0.0.2-i686.pet

It works best with jpg/jpeg 'lossy' images.

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It makes use of the cryptopp++ library:-

https://www.cryptopp.com/

...and generates secure RSA key-pairs, if you want to send one of these encrypted 'messages within an image' to another person. The other person will then be able to open the image, and extract the data within.

A rather novel way to hide stuff in plain sight.....right under the scrutiny of 'nosey' individuals, and the best bit is that they're completely unaware of it. This was built in Slacko 570, but should work in any Pup, as the package is completely self-contained.....and if there are any glibc limitations, I've not yet found them.

Enjoy.


Mike. Wink

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