[p2p-hackers] Secure communication in p2p networks

[Matthias Fischmann]

hi alain,

the reason there is not much research might be that solutions better
than the trivial ones are hard to find.  with trivial i mean that one
of the communicating group broadcasts a symmetric key over ssl-secured
channels to all other group members and then everybody uses symmetric
crypto.  slightly more efficiently, i think DH key agreement [1] can
be adapted for more than two parties.  one property of these
approaches is that the receiver of a secured package only knows that
*some* member of the group sent it, not which one.

is that helpful?

cheers,
matthias



[1] http://www.rsasecurity.com/rsalabs/node.asp?id=2248



On Mon, Feb 13, 2006 at 11:36:16AM +0100, Alain Damiral wrote:
> To: p2p-hackers at zgp.org
> From: Alain Damiral <alain.damiral at student.uclouvain.be>
> Date: Mon, 13 Feb 2006 11:36:16 +0100
> Subject: [p2p-hackers] Secure communication in p2p networks
> 
> Hello list,
> 
> This is my first post so please let me know if I'm already doing it wrong.
> 
> I am a student and am currently working on establishing SSL/TLS enabled 
> communication channels in a peer-to-peer network (for one-to-one secure 
> communication). In my report, I would also like to mention some current 
> research that might be in progress on secure protocols specifically 
> designed for one to many communication. According to what I last heard, 
> hardly anything has been done in this regard (creating shared secrets 
> between more than 2 entities).
> 
> I was hoping that maybe some of the members of this fine community could 
> direct me to some documentation on current research on this topic.
> 
> Well that's it for now, thank you all for your time and if you never 
> received this message, please disregard it.
> 
> -- 
> Alain Damiral,
> 
> I hope this message makes me look like a very intelligent person
> 
> Université Catholique de Louvain - student
> alain.damiral'at'student.info.ucl.ac.be
> 
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