[VOIPSEC] Fwd: VoIP Spam paper

[vijay arvind]

Thanks to droops for pointing out the error in the link sent. It is
http://www.ceas.cc/2007/papers/paper-63.pdf

---------- Forwarded message ----------
From: droops <droops at gmail.com>
Date: Nov 11, 2007 7:42 PM
Subject: Re: [VOIPSEC] VoIP Spam paper
To: vijay arvind <vijay.arvind at gmail.com>


havent read it yet, just wanted to post a fix of the url

http://www.ceas.cc/2007/papers/paper-63.pdf


On Nov 11, 2007 5:33 PM, vijay arvind <vijay.arvind at gmail.com> wrote:
> Hello All,
>
> Attached is a link to a VoIP spam approach that we at the Georgia Tech
> Information Security center (GTISC) are working on and was presented at
the
> 4th conference of Email and Anti Spam:
> http://www.ceas.cc/2007/papers/paper-63.pdfs
>
> The basic idea is to try and exploit the fact that in regular
communication
> users both make and receive calls, while spammers are interested in only
> making calls and disseminating information. Users rarely call a spammer
and
> even if they inadvertently do so, the call will last for a small duration.
> Hence we use call duration and the directionality of calling patterns to
> distinguish between a regular user and a spammer. We use basic
cryptographic
> primitives to encapsulate call duration as call credentials. How we
combine
> these call credentials using social networking theory and the Eigentrust
> algorithm (PageRank) to create a spammer detecting mechanism forms the
crux
> of the paper.
>
> Bouquets and Brickbats are most welcome.
>
> Thanks,
> Vijay
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