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Fifteen minutes to crack WPA protocol, says researcher - TechAmok
Fifteen minutes to crack WPA protocol, says researcher - [security] 07:44 PM EST - Nov,06 2008 - post a comment Security
researchers claims they have refined an existing WPA crack, making it more
efficient that earlier reports. Cryptographic expert Erik Tews will appear at
PacSec security conference in Tokyo next week with his presentation, "Gone in
900 seconds: Some Crypto issues with WPA." There, Tews is expected to show off
his discoveries in TKIP (Temporal Key Integrity Protocol) cracking, that allow
WPA to be broken in a brief 12-15 minute window. TKIP itself is not really
crackable, since it is a Per-Packet Key, but once it is initialized, the
Pairwise Master Key (PMK) can be obtained. From there, the conventional method
of breaking in involved a brute force dictionary attack, or a long process of
elimination by trying millions of options. PC World says that Tews and his
partner Martin Beck have discovered a "mathematical breakthrough" that allows
the WPA encryption to be cracked dramatically faster. Some of the tools Tews and
Beck used are rumored to have been already included in Aircrack-ng WEP/WPA PSK
cracking tool. However, the encryption keys from PC to Router have not been
cracked in this attack. |
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