The
wlan_ccmp
module handles the AES-CCMP cryptographic requirements of the
WPA and 802.11i protocols.
It does encapsulation and decapsulation of CCMP-encoded 802.11 frames
and optionally calculates the AES-CCMP cipher.
The
wlan_ccmp
module is an 802.11 cryptographic plugin module for use by the
wlan(4)
module.
This module is automatically loaded if an AES-CCMP key is configured;
typically by a WPA supplicant program such as wpa_supplicant,
or a WPA authenticator program such as
hostapd.
Should the underlying network device not be capable of doing the AES-CCMP
calculations in hardware, the
wlan_ccmp
module will do the work.