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TKIP Dynamic Keys - How often are they updated?

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RookThis

Technical User
Jul 27, 2002
195
US
does anyone know how often the dynamic keys are updated when using tkip? I've just seen statements that it's done periodically and I am trying to determine how often it's done.

Here is an excerpt of something I found:

TKIP, like WEP before it, is based on the RC4 encryption algorithm, says Chris Bolinger, product manager for Cisco's wireless networking group. But TKIP, which will be available as a software/firmware upgrade for access points and Wi-Fi cards already equipped with WEP, has a longer key length and uses dynamic keys that are swapped periodically.
 
For those interested... I was told that tkip updates the key every 10,000 packets.
 
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