From: Antonio Quartulli <ordex@autistici.org>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Will Hawkins <hawkinsw@opentechinstitute.org>,
Will Hawkins <hawkinsw@opentechinitiative.org>,
linux-wireless@vger.kernel.org
Subject: Re: Help tracing NL80211_CMD_AUTHENTICATE as event in IBSS mode
Date: Tue, 26 Jun 2012 21:35:21 +0200 [thread overview]
Message-ID: <20120626193521.GB7932@ritirata.org> (raw)
In-Reply-To: <1340736988.4484.19.camel@jlt3.sipsolutions.net>
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On Tue, Jun 26, 2012 at 08:56:28PM +0200, Johannes Berg wrote:
> On Tue, 2012-06-26 at 20:55 +0200, Antonio Quartulli wrote:
>
> > @johannes: de-duplication? IBSS/RSN assumes that each node runs an authenticator
> > and a supplicant. Does this mean that we need exactly two 4-way handshakes? Why
> > should we have a "winner"?
>
> I may misremember, I thought we didn't need two handshakes. But maybe we
> do, and just throw away one of the PTKs?
You are the expert here eheh.. but after having conducted 2 different 4-way
handshakes, the pairwise key of the STA with the greater MAC address is used.
Ok we are going OT :-) but you can check wpa_supplicant/ibss_rsn.c:282 and
section 11.5.13 of 802.11-2012.
Cheers,
--
Antonio Quartulli
..each of us alone is worth nothing..
Ernesto "Che" Guevara
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next prev parent reply other threads:[~2012-06-26 19:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-26 4:01 Help tracing NL80211_CMD_AUTHENTICATE as event in IBSS mode Will Hawkins
2012-06-26 6:53 ` Johannes Berg
2012-06-26 16:23 ` Will Hawkins
2012-06-26 16:41 ` Johannes Berg
2012-06-26 16:44 ` Will Hawkins
2012-06-26 17:03 ` Johannes Berg
2012-06-26 18:55 ` Antonio Quartulli
2012-06-26 18:56 ` Johannes Berg
2012-06-26 19:35 ` Antonio Quartulli [this message]
2012-06-26 19:36 ` Johannes Berg
2012-06-26 19:42 ` Nicolas Cavallari
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