Aircrack-ng is a range of utilities used for penetration testing on WiFi networks. It enables the ethical hackers to discover the weak areas of WPA/WPA2 encrypted security thus making wireless security strong.
Practical Example:
Now, if you are assigned to implement a Wi-Fi audit on a company, assume the following. With Aircrack-ng you can also challenge their password strength.
Start with airodump-ng wlan0 in order to start sniffer process. It monitors Wi-Fi Traffic and gathers handshake packets during connection string attempts.
Use Aircrack-ng to perform a dictionary attack with:
aircrack-ng capturefile.cap –w wordlist.txt
The tool tries to resolve the password as per the options existing in the wordlist.txt.
Output: In case the password is compromised to be a simple one, say ‘password123’ you can suggest that the user use complicated and long passwords.
It also assist in identifying misconfigured or rogue access point which is crucial towards creating a secure wireless network.
Tip: Always get a permission to conduct wireless testing. Using Aircrack-ng is prohibited and wrong when performed by any party other than the owner of the network being tested.
Takeaway: Specifically to prevent unauthorized access, frequent password changes, strong encryptions are crucial for the safety of Wi-Fi grounds.
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