Full Disclosure mailing list archives
Re: ESFS - The encrypted steganography filesystem
From: Tomás Touceda <chiiph () gentoo org>
Date: Thu, 13 Jan 2011 16:29:56 -0300
2011/1/13 stormrider <strmrdr42 () yahoo de>:
Hey Tomás, Am 13.01.2011 19:21, schrieb Tomás Touceda:Hi stormrider, 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.in the document I mentioned (Attacks on Steganographic Systems by Andreas Pfitzmann - which you can find here: http://www.ece.cmu.edu/~adrian/487-s06/westfeld-pfitzmann-ihw99.pdf) there is a very good example especially about using the LSB when trying to hide data. What it says about the LSB thing is, that it's a "myth that least significant bits are completely random and therefore might be replaced". Take a look at the windmill image in chapter 3.3 ;-) I advice you to take a look at that document anyway, which was *the* deathblow for steganography in late 90s. It also covers many other stego techniques, not only the LSB thing. It is a good starting point if you want to get deeper into that topic. But please, don't be discouraged by my humble opinion. Your project is nonetheless interesting and a good thing to learn. And there may be other findings about steganography around that I missed.
Thanks for the link! Don't worry, this kind of input was exactly what I was looking for :) Cheers,
happy coding, stormrider
-- Tomás Touceda Gentoo Developer Herds: Qt, Scheme, Lisp _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- ESFS - The encrypted steganography filesystem Tomás Touceda (Jan 13)
- Re: ESFS - The encrypted steganography filesystem Peter Maxwell (Jan 13)
- Re: ESFS - The encrypted steganography filesystem Tomás Touceda (Jan 13)
- Re: ESFS - The encrypted steganography filesystem stormrider (Jan 13)
- Re: ESFS - The encrypted steganography filesystem Tomás Touceda (Jan 13)
- Re: ESFS - The encrypted steganography filesystem stormrider (Jan 13)
- Re: ESFS - The encrypted steganography filesystem Tomás Touceda (Jan 13)
- Re: ESFS - The encrypted steganography filesystem Tomás Touceda (Jan 13)
- Re: ESFS - The encrypted steganography filesystem coderman (Jan 13)
- Re: ESFS - The encrypted steganography filesystem Peter Maxwell (Jan 13)