Hostap configuration - internet resoucres ?
Sergio M. Ammirata
Sun Feb 15 06:22:22 PST 2004
After a lot of trial and error I was able to get CCMP with static keys
working on top of a WDS link.
The key synchronization is a big issue though. They have to be both started
at the same time.
Is there a way to disable the sequence number counter when one is using
I was looking at hostap_crypt_ccmp.c but it is not quite obvious to me where
to do it?
> -----Original Message-----
> From: hostap-bounces+ammirata=econointl.com at shmoo.com [mailto:hostap-
> bounces+ammirata=econointl.com at shmoo.com] On Behalf Of Jouni Malinen
> Sent: Sunday, February 08, 2004 2:21 PM
> To: hostap at shmoo.com
> Subject: Re: Hostap configuration - internet resoucres ?
> On Sun, Feb 08, 2004 at 05:26:45PM +0100, Andreas Jellinghaus wrote:
> > how do wpa_supplicant/hostapd send and receive packets?
> > using packet socket or something like that?
> Both of them are using packet sockets, but with a bit different frame
> contents. hostapd sends IEEE 802.11 frames because it needs tob e able
> to send management frames that have different IEEE 802.11 header.
> wpa_supplicant sends Ethernet frames, i.e., it does not include IEEE
> 802.11 header.
> > maybe I can hack a small client/server app to (re-)set ccmp
> > keys myself till we have authenticator code.
> Well, that's one option. EAPOL packets (ethertype 0x888e) have special
> processing since they are needed for key handshake. EAPOL-Key frames are
> used to distribute the keys in IEEE 802.1x and WPA/IEEE 802.11i.
> > Or where would I find some paper about how to implement an
> > wpa authenticator? what is the standard for that? 1x? 11i?
> IEEE 802.11i/D3.0 with WPA spec from Wi-Fi. However, I'm already aware
> of at least three different implementation of WPA Authenticator on top
> of hostapd, so making yet another one might not be the best way to
> proceed. Making an open source release of an existing implementation
> would avoid quite a bit of duplicated work.
> Jouni Malinen PGP id EFC895FA
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