wlan_tkip
—
TKIP and Michael crypto support for 802.11 devices
The wlan_tkip
module handles the TKIP and Michael
cryptographic requirements of the WPA and 802.11i protocols. It does
encapsulation and decapsulation of TKIP-encoded 802.11 frames and optionally
calculates the TKIP cipher and Michael MIC. The
wlan_tkip
module is an 802.11 cryptographic plugin
module for use by the
wlan(4)
module. This module is automatically loaded if a TKIP 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 TKIP and/or Michael
calculations in hardware, the wlan_tkip
module will do
the work.
More information can be found in the IEEE 802.11, WPA, and 802.11i Standards.
The wlan_tkip
driver first appeared in
FreeBSD 6.0.