By Robert McMillan
IDG News Service
Security researchers say they've developed a way to partially crack the
Wi-Fi Protected Access (WPA) encryption standard used to protect data on
many wireless networks.
The attack, described as the first practical attack on WPA, will be
discussed at the PacSec conference in Tokyo next week. There, researcher
Erik Tews will show how he was able to crack WPA encryption, in order to
read data being sent from a router to a laptop computer. The attack
could also be used to send bogus information to a client connected to
To do this, Tews and his co-researcher Martin Beck found a way to break
the Temporal Key Integrity Protocol (TKIP) key, used by WPA, in a
relatively short amount of time: 12 to 15 minutes, according to Dragos
Ruiu, the PacSec conference's organizer.
They have not, however, managed to crack the encryption keys used to
secure data that goes from the PC to the router in this particular
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