wlan_ccmp
—
AES-CCMP crypto support for 802.11 devices
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.
More information can be found in the IEEE 802.11, WPA, and 802.11i
Standards.
The wlan_ccmp
driver first appeared in
FreeBSD 6.0.