RE: Steganography

From: Eugene Leitl (
Date: Wed Sep 26 2001 - 00:30:41 MDT

On Tue, 25 Sep 2001, Harvey Newstrom wrote:

> How did I do? Was I able to detect a file that had an "undetectable"
> message in it?

Yes. As I said, the first one was easy. The first message had a 512 byte
random payload straight out of /dev/random. The second message had a
single cr for payload (outguess won't let you add zero length files).

Next step would be to use same approach on pictures of different origins
and quality. Large pictures with low compression rate.

The step after that would be telling /dev/random from an encrypted
message. Still game?

-- Eugen* Leitl <a href="">leitl</a>
ICBMTO: N48 04'14.8'' E11 36'41.2''
57F9CFD3: ED90 0433 EB74 E4A9 537F CFF5 86E7 629B 57F9 CFD3

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