Main differences between WPA and WPA2?
Wi-Fi Protected Access 2 (WPA2) builds upon WPA, which makes
them very similar. Both support identical Extensible Authentication
Protocol (EAP) types in an enterprise environment, as well as
allowing pre-shared keys (PSKs). Group key transmission is
performed by the two-way handshake, while the four-way handshake is
used for unicast generation.
The main differences are as follows:
- WPA requires Temporal Key Integrity Protocol (TKIP), and it
supports Advanced Encryption System (AES), which provides a
stronger encryption
- WPA2 requires AES, and it does not support TKIP