Pyrit: crack WPA/WPA2-PSK

pyrit_compPyrit is a powerful brute-force utility to crack WPA/WPA2-PSK authentication. It can use massive databases to start the attack and can give results relatively faster than common cracking methods. It uses a single MySQL server as database. So it can use this extra space to reduce the time to compute. Quoting from the author: “WPA/WPA2-PSK assigns every participating party the same pre shared key. This master key is derived from a password which the administrating user has to pre-configure e.g. on his laptop and the Access Point. When the laptop creates a connection to the Access Point, a new session key is derived from the master key to encrypt and authenticate following traffic. The “shortcut” of using a single master key instead of per-user keys eases deployment of WPA/WPA2-protected networks for home and small-office use at the cost of making the protocol vulnerable to brute-force-attacks against its key negotiation phase; it allows to ultimately reveal the password that protects the network.”. Pyrit is the strongest attack against the widely used WPA/WPA2-PSK authentication protocols at the time of writing.

To install on Ubuntu:

$ sudo apt-get install pyrit

Disclaimer: Pyrit should be used for educational and experimental purposes only and not to snoop on others or invade someone’s privacy.

Pyrit blog
Usage: Tutorial
Webpage: Pyrit

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