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     wlan_tkip — TKIP and Michael crypto support for 802.11 devices


     device wlan_tkip


     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.


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


     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.