Re: 802.11 Decryption works under Mac, doesnt work under Vista

[Jeff Morriss <jeff.morriss.ws () gmail com>]

Ivan Miskevich wrote:
> Hello,
>
> I'm capturing traffic from my home Wi-Fi network using MacBook Intel 
> laptop in promiscuous mode (802.11).
> I setup 802.11 decryption in Wireshark for MacOS using known SSID and 
> passphrase. Decryption works, I'm able to see tcp packets in the packet 
> flow, the IP's and contents are real.
>
> The problem appears when I try to open saved pcap files under Windows 
> Vista at another laptop. I can't decrypt neither using passphrase+SSID, 
> nor by generating PSK key sequence using online tool 
> http://www.wireshark.org/tools/wpa-psk.html.
>
> My home network encryption settings are Security type: WPA2-Personal, 
> encryption type AES (this is what I observe in "Manage Wireless 
> Networks"). The wireshark is the latest downloaded from website.

Is it possible that the Vista version is 64-bit?  Not all of the 
libraries Wireshark uses (e.g., for decryption) are available on 64-bit 
Windows.  If you cut-n-paste the info from the Help->About menu it can 
give a lot of useful information.
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