stenography – Phocean.net / Computer Security Blog Fri, 24 Feb 2017 21:17:51 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.10 ESFS, new perspectives for stenography ? /2011/01/14/esfs-new-perspectives-for-stenography.html Fri, 14 Jan 2011 21:43:21 +0000 http://www.phocean.net/?p=952 http://www.phocean.net/?p=952 Continue Reading]]> Tomas Touceda advertised a new project on Full Disclosure.
The idea sounds good, so I will keep an eye on this very interesting project.
Though I would like to know more about the methods that were used for encryption and stenography.

Code and explanations are on the ESFS project homepage.
Beyond the pratical usage, I wonder if it can offer anyhow better resistance to statistical analysis that usually defeat stenography. The author addresses partialy the point on the mailing list:

What I meant with hide is that, since it uses the LSBs, you can pick
any image, and “find data” in them, so it makes it a little bit harder
to know where you actually have data, and if you really do.

To this, a reader named stormrider pointed out an interesting research document (PDF), which is a state of the art of the limitations of stenography and the attacks against it. Is it really a dead-end ?

This is indeed a very interesting field of research.

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