Re: Cracking WEP and WPA keys

[Michael Sierchio <ducatista () camber-thrust net>]

Robin Wood wrote:
> Hi
> I've just been on a wireless security course where there was a lot of talk
> about WEP keys being poor security and easily crackable. I got home and
> decided to put it to practice and use aircrack against my own WEP key.

The Fluhrer-Mantin-Shamir method is not efficient in all cases.

The adaptive chosen plaintext attack works every time, though
it is noisy.  But the AP itself has no idea that anything is
going on, because decryption errors aren't reported to the higher
levels of the protocol.


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