Re: 802.1x and dynamic WEP keying

From: Vladimir Ivaschenko (
Date: 2002-09-24 07:10:19 UTC

Tue, Sep 24, 2002 at 06:29:39AM +0300 Jouni Malinen wrote about Re: 802.1x and dynamic WEP keying

> > broadcasted - does it affect client operation in any way (e.g., temporary
> > packet loss etc).
> Yes, they can be regenerated. As far as the per-STA unicast key is
> considered, some packets will probably be dropped if there are any data
> transmit going on during the key transmit. Broadcast keys could use
> different key indexes (four of them available) to limit this effect.

Ok, I still don't understand whether the WEP keys are really regenerated and how often. Is there a variable to control how often the unicast keys are regenerated? I took a brief look at the source and didn't find anything releated to key regeneration, is it supported in the current version of HostAP?

Another question is - is it possible for the AP to use a single unicast key for all the clients, so that firmware encryption can be used? As far as I understand it is impossible to support multiple unicast keys using firmware encryption at the moment.

Best Regards
Vladimir Ivaschenko

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