From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Question: re Image Files.
Date: Fri, 31 Aug 2012 11:41:53 +0200
Date: 2012-08-31T11:41:53+02:00 [thread overview]
Message-ID: <1q1ltd7602r6d.1jvr83ked0sah$.dlg@40tude.net> (raw)
In-Reply-To: bd3a18bd-c04c-403c-a8d0-0fb2431cd47b@googlegroups.com
On Fri, 31 Aug 2012 02:25:18 -0700 (PDT), Ludovic Brenta wrote:
> Austin Obyrne wrote on comp.lang.ada:
>> That is precisely what I want to do - I have no other interest in
>> the image file apart from using the alpha + pixels dat as the
>> operands of encryption transformations.
>
> So, you want an attacker of your encryption scheme to know that the
> cleartext is an image?
To transmit messages undetected hidden within innocently looking images?
Usual scheme is to slightly manipulate channels.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2012-09-07 1:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-30 22:33 Question: re Image Files Austin Obyrne
2012-08-30 22:55 ` Adam Beneschan
2012-08-31 1:35 ` tmoran
2012-08-31 7:16 ` Dmitry A. Kazakov
2012-08-31 7:18 ` Mark Murray
2012-08-31 8:58 ` Austin Obyrne
2012-08-31 9:25 ` Ludovic Brenta
2012-08-31 9:41 ` Dmitry A. Kazakov [this message]
2012-08-31 9:14 ` Austin Obyrne
2012-08-31 17:09 ` Mark Murray
2012-08-31 17:36 ` Austin Obyrne
2012-08-31 22:09 ` Shark8
2012-09-04 10:05 ` Antti Louko
2012-08-31 21:12 ` gautier_niouzes
2012-09-01 6:58 ` Austin Obyrne
2012-09-03 6:02 ` Anatoly Chernyshev
2012-09-03 7:27 ` Mark Murray
2012-08-31 8:41 ` Brian Drummond
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