Summary
In this chapter, we have learnt the following about WLAN encryption:
WEP is flawed and no matter what the WEP key is, with enough data packet samples it is always possible to crack WEP.
WPA/WPA2 is cryptographically un-crackable currently, however, under special circumstances, such as when a weak passphrase is chosen in WPA/WPA2-PSK, it is possible to retrieve the passphrase using dictionary attacks.
In the next chapter, we will look at different attacks on the WLAN Infrastructure, such as rogue access points, evil twins, bit flipping attacks, and so on.