From: Maxim Levitsky <maximlevitsky@gmail.com>
To: linux-wireless <linux-wireless@vger.kernel.org>
Subject: Making promisc mode work with WPA encryption?
Date: Tue, 07 Apr 2009 03:15:52 +0300 [thread overview]
Message-ID: <1239063352.4705.40.camel@maxim-laptop> (raw)
This is my last question I want to ask.
I finally got time to learn how WPA2 encryption works.
so there is per station key (temporal key), and one multicast key (group
key). TK is derived from PSK by throwing together macs or both ends, two
random numbers, and PMK (whick in case of wpa personal == PSK
This means kernel can't automatically decrypt other stations traffic.
But I could arrange small program that listens to device in monitor or
maybe even just promisc mode, and records WPA handshakes. For every
handshake it could install the key in kernel driver, so it would use it
for decryption, and show the traffic on device in promisc mode. Is it
possible to do today? I guess not.
All this program has to know is the PSK.
(I could even arrange WPA supplicant to do this job - it knows all keys
already)
Best regards,
Maxim Levitsky
next reply other threads:[~2009-04-07 0:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-07 0:15 Maxim Levitsky [this message]
2009-04-07 4:59 ` Making promisc mode work with WPA encryption? Kalle Valo
2009-04-07 12:54 ` Maxim Levitsky
2009-04-07 16:17 ` Jouni Malinen
2009-04-07 20:19 ` Maxim Levitsky
2009-04-07 21:07 ` Jouni Malinen
2009-04-07 21:11 ` Johannes Berg
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