Re: Authentication Status

Thanks Cedric -

I maybe oversimplifying it ..but to confirm my understanding

After successful authentication happens - a set of keys are shared
between client wifi card and the AP.  These key(s) are then part of
all subsequent packets. Unless keys match, AP will not allow packets
to go through.


On 5/18/07, Cedric Blancher 
<blancher-cPThYx3uDionEikN29/hQkZa+K1vlBrA@xxxxxxxxxxxxxxxx> wrote:
> Le jeudi 17 mai 2007 à 14:38 +0530, saudi sans a écrit :
> > Irrespective of EAP type used , How does a wireless AP know if the
> > connecting client is authenticated one or not ? Is there something
> > like session-id or something that is appended with every packet.
>
> In WPA/WPA2, EAP authentication leads to a key hierarchy setup on client
> and AP. Theses keys will be used for encryption and
> authentication/integrity checks. Thus, if you're not authenticated, you
> don't have the right key set and you can't build frames properly.
>
>
> --
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