Michael,

You are absolutely right, but it still takes up more time than the key
rotation.

So when rotating the key every 3 minutes, it is still unhackable. You
might be able to decript the 3 minutes of traffic.

We have tried the method, but see no possibility with short rotation
times.

It is different when you are able to crack the master key from the
radius server. TTLSv1 solves that potential problem.

Wim

-----Original Message-----
From: King, Michael [mailto:[EMAIL PROTECTED] 
Sent: zaterdag 28 oktober 2006 17:16
To: wim
Subject: Re: [WIRELESS-LAN] Dynamic WEP transition to WPA

 

> -----Original Message-----

> When you deploy 802.1x wep, it is very secure as well. 

Just a note, this was true up till a few weeks ago.

http://www.ja.net/development/wireless/wag/wep-strongly-deprecated.pdf

The synopis of this paper is,  it is now possible to crack WEP with 1
packet, and several seconds.

Most Key Rotation schemes are every 5 minutes, or more.

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