If I can crack the AES, how do I crack the wifi I am a student major in math.
My teacher said that AES (Advanced Encryption Standard) has many applications.
For example, the WPA2 in wifi.
Then he taught the theory of the AES and never says how to apply it.

So, my question is, 
if I can crack the AES, 
how do I crack the wifi and steal others' data (just for learning purpose).

Please give me the concrete steps.
If it is too complicate to explain at here, 
you can give me the reference which I should read.

Edit: the point of my question is not "how to crack AES". 
My question is "how to crack wifi if I can crack AES". 
I can choose the key by myself in a private newwork. 
Then I don't need to crack the AES. 
The thing I want to do is crack and learn how to crack the wifi.
If you "crack the AES", a very hypothetical assumption, then you could simply parse the WiFi packets and decrypt the messages that are being send.

Cracking AES is however considered impossible. AES-256 is even considered secure against attacks that involve (somewhat less hypothetical but still unavailable) quantum computers.



Note that even RC4, which was one of the reasons that WEP was cracked, is considered pretty secure when used correctly. Generally you are better off attacking the protocol or protocol implementations.

If you really want to attack AES itself then side channel attacks are probably your best option.