Don't crack any wifi router without authorization; otherwise, you will be put into the jail.
Step 1 :
The result will be something like :
Step 2 :
Step 3 (Optional) :
Step 4 :
Step 5 :
Step 6 :
Step 7 :
Step 8 (Optional) :
If you do not want to use John the Ripper as word list, you can use Crunch.
Go to the official site of crunch.
8 16is the length of the password, i.e. from 8 characters to 16 characters.
(B) nVidia Display Card with CUDA
If you have nVidia card that with CUDA, you can use pyrit to crack the password with crunch.
Step a :
Step b :
Step c (Optional) :
Step d :
Step e :
Step f :
Step g :
Step h :
Step i :
Step j :
Step k (Optional) :
Step l :
If you have an nVidia GeForce GTX460 (336 CUDA cores), the speed of cracking is about 17,000 passwords per second.
To test if your wireless card (either USB or PCI-e) can do the injection or not :
Open another terminal.
Make sure pyrit workable on your system :
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