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Re: WiFi mesh - network address associated with fingerprint of the node's public key?

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On 02/28/2012 06:21 AM, WZab wrote:
> Hi,
>
> I've experimented a little with spontaneously created mesh networks based on olsr protocol.
> The idea was, that the net is totally open, without any management nodes (so the network
> should survive as long as sufficient amount of users is on-line, creating the mesh).
> Therefore it was also not possible to provide any DHCP server.
> Everyone could connect selecting any free IP belonging to the pool of the addresses belonging
> to the network.
> Unfortunately, such simplistic scheme is not immune against IP conflicts (either occuring
> due to random selection of IP, or caused by malicious intruders trying to destroy the network).
> The network could be protected, if the IP address could be associated with the public key of
> the node (e.g. it could be based on fingerprint of this key).
> In this case the intruder could not spoof the particular node, unless he has the secret key
> associated with public kay matching that IP.
> When maintaining the network, nodes should check, that  the node claiming to have particular
> IP really has the key pair matching it (by sending challenge encrypted with the public key, and
> requesting the response).
>
> Of course it could be difficult to add such mechanism to the IP4 based network (as with less than 2^32
> possible IP numbers it could could be possible to generate key matching any selected IP - even though
> it should be time consuming), but in IPv6 it should be doable.
>
> I don't know if this idea is new, neither if it is possible to implement in reasonable way,
> but it seems interesting...

It sounds interesting. Could you explain more why you think DHCP, or 
some derivative, could not be used.

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Thread

WiFi mesh - network address associated with fingerprint of the node's public key? WZab <wzab@ise.pw.edu.pl> - 2012-02-28 11:21 +0000
  Re: WiFi mesh - network address associated with fingerprint of the  node's public key? William Colls <william.colls@rogers.com> - 2012-02-28 09:55 -0500
    Re: WiFi mesh - network address associated with fingerprint of the  node's public key? Wojtek Zabołotny <wzab@ise.pw.edu.pl> - 2012-02-28 17:32 +0000
      Re: WiFi mesh - network address associated with fingerprint of the  node's public key? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-02-28 20:20 +0200
        Re: WiFi mesh - network address associated with fingerprint of the node's public key? wzab <wzab01@gmail.com> - 2012-02-28 10:34 -0800

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