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How does the Newsham
21-bit attack work? |
A lot of wireless access
point offer a key generation process on basis of an easy to remember
passphrase. Unfortunatel some companies implemented a very dangerous
algorithm for the generation of 40-bit WEP keys. This algorithm generates
only keys with an effective strength of 21-bits. KisMAC is able to bruteforce
these keys in very short time.
Access Points from the following companies are confirmed vulnerable: Linksys,
D-Link, Belkin and Netgear. There are undoubtably others.
The following companies use other algorithms and are safe: 3Com, Apple.