CPU usage of WPA TKIP

Jouni Malinen jkmaline at cc.hut.fi
Fri Aug 12 01:17:41 EDT 2005


On Thu, Aug 11, 2005 at 11:46:55AM +0200, Thomas Gabriel wrote:

> Iam wondering wether encrypting traffic using wpa-tkip will hit the cpu of
> my system?

Host AP driver implements TKIP in the driver and as such, host CPU
will be used for this. TKIP (RC4+CRC32) does not take that much CPU,
especially with IEEE 802.11b cards. Of course, if you are already
running low on available CPU, this may limit the available maximum
throughput.

-- 
Jouni Malinen                                            PGP id EFC895FA



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