wlan_tkip(4)

NAME

wlan_tkip - TKIP and Michael crypto support for 802.11 de
vices

SYNOPSIS

device wlan_tkip

DESCRIPTION

The wlan_tkip module handles the TKIP and Michael crypto
graphic requirements of the WPA and 802.11i protocols. It does encapsula
tion and decapsulation of TKIP-encoded 802.11 frames and optionally calcu
lates 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 pro
gram such as

hostapd. Should the underlying network device not be capa
ble of doing

the TKIP and/or Michael calculations in hardware, the
wlan_tkip module

will do the work.

SEE ALSO

wlan(4), wlan_ccmp(4), wlan_wep(4)

STANDARDS

More information can be found in the IEEE 802.11, WPA, and

802.11i Standards.

HISTORY

The wlan_tkip driver first appeared in FreeBSD 6.0.

BSD December 7, 2004
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