Create wordlist with crunch in Kali Linux – Video
characters to use abcde123456789
-o = output file
Open password lists with Leafpad
To generate a password list of between 8 and 13 for aircrack
crunch 8 13 abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 | aircrack-ng –bssid aa:aa:aa:aa:aa:aa -w- handshakefile.cap
WPA has to be at least 8 characters.
Crunch uses CPU so is slow – use Hashcat for GPU hacking.
GPU hacking is much faster.
Found this password research on the Kali forum:
Do not waste time with lengths over 10 so just do 8-10.
Over half were less then 11
Very few were greater then 10 in length
Over half of the numeric were phone numbers
Only 5% were greater then 10 in length.
The best way to brute force a key is to try and determine the length and key types used. You can then focus your brute force in that area.
You could guess or:
If you find the key longer then 11 and using one computer do not bother. You might get lucky with a dictionary.
Crunch is great to learn how to generate a wordlist.. but use the Kali dictionaries.
The best advice for password security is to to use a longer password. It is feasible to crack an 8 character password, but not an 18 character password.