[VOIPSEC] Real-time Steganography with RTP

[Raul Siles]

I)ruid DC15 video (same topic) is available at:
http://tinyurl.com/ysmhm4
http://preview.tinyurl.com/ysmhm4
--
Raul Siles
GSE
www.raulsiles.com

On 9/19/07, Dan Wing <dwing at fuggles.com> wrote:
> http://www.uninformed.org/?v=8&a=3&t=txt
>
> Real-time Steganography with RTP
> September, 2007
> I)ruid, C²ISSP
> druid at caughq.org
> http://druid.caughq.org
>
>
> Abstract: Real-time Transfer Protocol (RTP) is used by nearly all
> Voice-over-IP systems to provide the audio channel for calls.  As
> such, it provides ample opportunity for the creation of a covert
> communication channel due to its very nature.  While use of
> steganographic techniques with various audio cover-medium has been
> extensively researched, most applications of such have been limited to
> audio cover-medium of a static nature such as WAV or MP3 file audio
> data.  This paper details a common technique for the use of
> steganography with audio data cover-medium, outlines the problem
> issues that arise when attempting to use such techniques to establish
> a full-duplex communications channel within audio data transmitted via
> an unreliable streaming protocol, and documents solutions to these
> problems.  An implementation of the ideas discussed entitled SteganRTP
> is included in the reference materials.
>
>
>
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