WEP-Open Key Auth - detection of Decryption Failures???
espy at pepper.com
Mon Feb 20 13:21:50 EST 2006
Is there anyway to detect decryption failures after association with a
WEP Open Key access point other than keeping track of the discarded
undecryptable RX packets via /proc/net/wireless or
Also, are there any other causes of decryption failure besides an
We frequently get customers calling in stating that they can't get an IP
address for their Pepper Pad and quite often it can be traced back to an
invalid WEP key entered.
It seems like Apple has some kind of magic in their laptop WiFi
driver(s) and/or UI that figures out that a WEP key is incorrect and
displays a popup message almost immediately.
The only way I can think of detecting a bad key from user space would be
to modify the driver to reset the 'rx_discards_wep_undecryptable'
counter to 0 on association, and then monitor the counter, displaying a
popup dialog if the counter starts increasing.
Principal Software Engineer
Pepper Computer, Inc.
p.s. I'm using v0.4.7 of the HostAP driver and wpa_supplicant.
More information about the HostAP