IEEE 802.11i pre-authentication problem

Jouni Malinen jkmaline at
Tue Sep 12 23:58:32 EDT 2006

On Tue, Sep 12, 2006 at 08:21:53PM -0400, Rafa Marin Lopez wrote:

> I have been testing IEEE 802.11i pre-authentication and everything is ok 
> except when STA moves to pre-authenticated AP. After the movement STA 
> sends the PMKID to pre-authenticated AP but full EAP authentication is 
> still run.
> I have noticed that during pre-authentication PMKSA cache in the target 
> AP is not set with the new PMK.
> In particular,
> "   if (wpa_auth_pmksa_add(sta->wpa_sm, key,

> it does not add the PMKSA because sta->wpa_sm is NULL. Is this a bug?

Yes, looks like this part of WPA2 functionality did not survive the WPA
authenticator cleanup in 0.5 branch. This is now fixed in CVS.

Jouni Malinen                                            PGP id EFC895FA

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