Re: [dtn-security] Traffic Analysis Protection

Urs Hengartner <uhengart+dtn@cs.uwaterloo.ca> Wed, 12 March 2008 22:16 UTC

Received: from services110.cs.uwaterloo.ca (services110.cs.uwaterloo.ca [129.97.152.166]) by maillists.intel-research.net (8.13.8/8.13.7) with ESMTP id m2CMFx98021285 for <dtn-security@mailman.dtnrg.org>; Wed, 12 Mar 2008 15:16:00 -0700
Received: from [129.97.7.53] (zurich.cs.uwaterloo.ca [129.97.7.53]) (authenticated bits=0) by services110.cs.uwaterloo.ca (8.13.8/8.13.8) with ESMTP id m2CMKQCt002007 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for <dtn-security@mailman.dtnrg.org>; Wed, 12 Mar 2008 18:20:27 -0400 (EDT)
Message-ID: <47D8572A.4000509@cs.uwaterloo.ca>
Date: Wed, 12 Mar 2008 18:20:26 -0400
From: Urs Hengartner <uhengart+dtn@cs.uwaterloo.ca>
Organization: University of Waterloo
User-Agent: Thunderbird 1.5.0.14ubu (X11/20080306)
MIME-Version: 1.0
To: DTN Security Discussion <dtn-security@mailman.dtnrg.org>
References: <676D5FD21A8EEC4591C13839BF2A14B9F166D6@EVS-EC1-NODE4.surrey.ac.uk>
In-Reply-To: <676D5FD21A8EEC4591C13839BF2A14B9F166D6@EVS-EC1-NODE4.surrey.ac.uk>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Miltered: at mailchk-w01 with ID 47D8572A.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)!
X-Virus-Scanned: ClamAV version 0.92.1, clamav-milter version 0.92.1 on localhost
X-Virus-Status: Clean
X-UUID: c77708c9-40c3-4a3c-939e-020047bf8d1c
Subject: Re: [dtn-security] Traffic Analysis Protection
X-BeenThere: dtn-security@mailman.dtnrg.org
X-Mailman-Version: 2.1.9
Precedence: list
Reply-To: DTN Security Discussion <dtn-security@mailman.dtnrg.org>
List-Id: DTN Security Discussion <dtn-security.mailman.dtnrg.org>
List-Unsubscribe: <http://maillists.intel-research.net/mailman/listinfo/dtn-security>, <mailto:dtn-security-request@mailman.dtnrg.org?subject=unsubscribe>
List-Archive: <http://maillists.intel-research.net/pipermail/dtn-security>
List-Post: <mailto:dtn-security@mailman.dtnrg.org>
List-Help: <mailto:dtn-security-request@mailman.dtnrg.org?subject=help>
List-Subscribe: <http://maillists.intel-research.net/mailman/listinfo/dtn-security>, <mailto:dtn-security-request@mailman.dtnrg.org?subject=subscribe>
X-List-Received-Date: Wed, 12 Mar 2008 22:16:01 -0000

Hi Nasir,

We very briefly looked at traffic analysis during the design of our 
security and anonymity architecture for DTNs. Please refer to section 
VII.C of our SecureComm paper:
http://www.cs.uwaterloo.ca/~uhengart/securecomm07.1.pdf

Best,
  Urs

M.Bhutta@surrey.ac.uk wrote:
> Hello,
> I am working on traffic analysis protection for DTN networks. From the 
> "DTN Security Internet Draft" there are some
> questions about this which I wanted to be discussed on the DTNRG 
> security mailing list.
> 
> 1. To what extent there is a real need for a generic scheme for 
> protection against traffic analysis.
> 2. How to define such generic scheme for delay and disruption tolerant 
> networks and should not consume too much resources like for Sensors.
> 3. Should Traffic analysis protection be left on underlying network 
> layers than DTN layer.
> 
> To completely stop the traffic analysis, following counter-measures 
> should be taken into account to avoid the traffic analysis:
> 1. Encryption
> 2. Masking (sending dummy traffic like encrypted message to show 
> channedl 100% busy)
> 3. Hiding time and size information of traffic
> 
> taking into considerations the above questions and the counter-measures, 
> we can go towards how we should provide such a solution for
> DTN Networks and which counter-measures are realy important for DTN 
> based networks while considering the internet networks and 
> non-internetnetworks like sensor networks and the solution should use 
> less resources as possible.
> 
> best regards
> Nasir
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> dtn-security mailing list
> dtn-security@mailman.dtnrg.org
> http://maillists.intel-research.net/mailman/listinfo/dtn-security