Wireless Security
802.11i (WPA2) Protocol

802.11i standard, also referred to as WPA2, combines the mechanisms of 802.1x and TKIP. This standard uses a 128-bit AES block cipher.

From the structural point of view, the 802.11i standard has a similar structure to WPA and comes with new features, such as the CCMP protocol and selectable preauthentication, which ensures fast and secure roaming between access points.

Main mechanisms and security services of the 802.11i standard are: