""The flaw," writes Fleishman, "is not a generic crack: it
doesn't allow a WPA key to be recovered, nor does it work on all
data passing the network. The flaw only affects packets encrypted
using the TKIP system, which is a backwards-compatible upgrade to
802.11's original WEP system. It's also only possible at this point
to recover the original text for short packets--those with
predictable contents that are quite short. And it requires the use
of 802.11e, the Quality of Service (QoS) standard that prioritizes
voice and streaming data above that of normal data to provide voice
quality and avoid video and audio stuttering.""
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