On Fri, Sep 08, 2006 at 09:19:43AM -0500, Queisser, Andrew (Tonnerre de Brest!) wrote: > I found only one tool (aircrack/airdecap) that supposedly is capable of > doing this (so far it hasn't worked for me) but I'm wondering if anyone > is working on adding WPA decryption to wireshark in the same way it > already decrypts WEP.
The problem with WPA/WPA2 is that it uses dynamic keys derived from a hanshake sequence. If you don't have all of the information needed to generate that dynamic keydata, then you won't be able to generate the per-packet encryption key and decrypt the frame. Oh, and each pair of communication stations use a unique keyset. With WPA[2]-PSK, obtaining this dynamic key information is possible if you sniffed the initial handshake and knew the PSK, but if they're using WPA[2]-EAP, the "shared secret" is generated on either end using the authentication credentials via a secure channel. While there are attack vectors for this information... it's a monumental undertaking. All that said, all you strictly need to decode TKIP or AES traffic is the PTK (derived from the PMK/PSK+handshake data), so if you know that, (presumably via AP or STA logs) decoding the payload is possible. - Solomon -- Solomon Peachy [EMAIL PROTECTED] AbsoluteValue Systems http://www.linux-wlan.com 721-D North Drive +1 (321) 259-0737 (office) Melbourne, FL 32934 +1 (321) 259-0286 (fax)
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