— AES-CCMP crypto support for
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)
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,
module will do the work.
More information can be found in the IEEE 802.11, WPA, and 802.11i Standards.
driver first appeared in