Kali Linux Wireless Penetration Testing Beginner's Guide by unknow

Author:unknow
Language: eng
Format: epub
Publisher: Packt Publishing

Time for action – speeding up the cracking process

We can proceed with the following steps:

We can precalculate the PMK for a given SSID and wordlist using the genpmk tool with the following command: genpmk –f <chosen wordlist>–d PMK-Wireless-Lab –s "Wireless Lab

This creates the PMK-Wireless-Lab file containing the pregenerated PMK:

We now create a WPA-PSK network with the passphrase abcdefgh (present in the dictionary we used) and capture a WPA-handshake for that network. We now use Cowpatty to crack the WPA passphrase, as shown in the following screenshot:

It takes approximately 7.18 seconds for Cowpatty to crack the key, using the precalculated PMKs.

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