Re: wpa2-psk aes

[thinkofit () gmail com]

On 02/22/2011 06:35 PM, marco gregorio wrote:
> I actually would like to dig further into your issue, do you want to
> make each peer secure from each other, or you want the partecipants to
> be securely isolated from external intrusion?

hi,

the project's aim is to keep secure each participant from each other and, of course, from external intrusions.
 
> Using a PSK eases from using a pki infrastructure in order to have a
> safe key exchange.
> The point is: authentication.
> Diffie helmann exchanges keys but it's peer authentication-less: discarded.
> The way is key exchange through RSA  (SSL does it).
> The use of a psk assumes that who knows the psk is trusted, as soon as
> the AES takes place, the key is recalculated over again, so just take
> the PSK as a secure way of beginning the session.

so, my understanding is that using a wpa2-psk scheme with the key being known by participants would keep the meeting 
room secure from external intrusion but a peer vs peer intrusion could still be possible.

now, the only viable solution for that scenario is 802.1X standard: it should keep safe each participant from other 
participants and from external intruders.

thank you
-- 
antonio

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