Questions tagged [tkip]

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Attacking TKIP Group Shared traffic

I am aware of two attacks against TKIP/RC4 encrypted traffic: Beck-Tews attack Ohigashi-Morii attack If I have a network that uses TKIP for the Group Cipher, i.e. multicast and broadcast traffic, ...
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WPA2 and ChopChop attack

I know that WEP is vulnerable to the ChopChop attack. Could the ChopChop attack be carried against WPA2-PSK as well? Some Internet articles suggest this possibility, I want to be sure though.
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Is the keystream recovered by tkiptun-ng the same key used to encrypt all data frames between the client and the AP?

Looking at the manual for tkiptun-ng,(http://www.aircrack-ng.org/doku.php?id=tkiptun-ng) The output saves the keystream in the example near the end of the program. Is this the same keystream used to ...
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TKIP key length and initialization vector size

It's not clear to me from reading the wiki if TKIP encryption uses a 128 bit RC4 encryption key and a 48 bit IV, or if the 128 bit is the total, and the actual key size is 128 - 48 = 80 bit.