.\"
.\" Copyright (c) 2004 Sam Leffler
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.\" $FreeBSD: head/share/man/man4/wlan_tkip.4 147403 2005-06-15 19:29:03Z wilko $
.\"
.Dd December 7, 2004
.Dt WLAN_TKIP 4
.Os
.Sh NAME
.Nm wlan_tkip
.Nd TKIP and Michael crypto support for 802.11 devices
.Sh SYNOPSIS
.Cd "device wlan_tkip"
.Sh DESCRIPTION
The
.Nm
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
.Nm
module is an 802.11 cryptographic plugin module for use by the
.Xr 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
.Nm hostapd .
Should the underlying network device not be capable of doing the TKIP
and/or Michael calculations in hardware, the
.Nm
module will do the work.
.Sh SEE ALSO
.Xr wlan 4 ,
.Xr wlan_ccmp 4 ,
.Xr wlan_wep 4
.Sh STANDARDS
More information can be found in the IEEE 802.11, WPA, and 802.11i Standards.
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 6.0 .