[Dshield] Question on Skype

Kenton Smith listsks at yahoo.ca
Fri Feb 17 20:25:00 GMT 2006

OK, teminology aside, I new I had read something
recently that had an excellent summary of the
implications of using Skype, including security. P2P
is an issue he lists in there.
"Like KaZaA, Skype is based on peer-to-peer
technology: instead transmitting all voice calls
through a central server, as Vonage does, Skype
clients seek out and find other Skype clients, then
build from these connections a network that can be
used to search for other users and send them
"Third, because Skype is mostly a peer-to-peer system,
the overall security can be affected by third parties
that are in the network (but that  are unknown to
those in a particular phone conversation)."
Entire paper is here:

It addresses a number of issues surrounding Skype


--- Valdis.Kletnieks at vt.edu wrote:

> On Fri, 17 Feb 2006 12:02:59 EST, Kenton Smith said:
> > My concern with Skype is that it is a P2P
> technology.
> > As far as I know that means that your machine
> could be
> > being used as a node in the network even if you
> aren't
> > using it.
> P2P simply means 'Peer To Peer' - meaning that the
> machines that
> want to talk do so directly, rather than the more
> usual 'client server'
> model (where if 2 arbitrary machines wanted to
> communicate, they'd do
> so by sending to a central server, which would then
> forward to the other
> machine).


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