1.\" 2.\" Copyright (c) 2004 Sam Leffler 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD: src/share/man/man4/wlan_ccmp.4,v 1.3 2005/01/13 11:09:58 ru Exp $ 27.\" $DragonFly: src/share/man/man4/wlan_ccmp.4,v 1.1 2006/05/18 14:34:31 sephe Exp $ 28.\" 29.Dd May 14, 2006 30.Dt WLAN_CCMP 4 31.Os 32.Sh NAME 33.Nm wlan_ccmp 34.Nd AES-CCMP crypto support for 802.11 devices 35.Sh SYNOPSIS 36.Cd "device wlan_ccmp" 37.Sh DESCRIPTION 38The 39.Nm 40module handles the AES-CCMP cryptographic requirements of the 41WPA and 802.11i protocols. 42It does encapsulation and decapsulation of CCMP-encoded 802.11 frames 43and optionally calculates the AES-CCMP cipher. 44The 45.Nm 46module is an 802.11 cryptographic plugin module for use by the 47.Xr wlan 4 48module. 49This module is automatically loaded if an AES-CCMP key is configured; 50typically by a WPA supplicant program such as wpa_supplicant. 51.\"typically by a WPA supplicant program such as wpa_supplicant, 52.\"or a WPA authenticator program such as 53.\".Nm hostapd . 54Should the underlying network device not be capable of doing the AES-CCMP 55calculations in hardware, the 56.Nm 57module will do the work. 58.Sh SEE ALSO 59.Xr wlan 4 , 60.Xr wlan_tkip 4 , 61.Xr wlan_wep 4 62.Sh STANDARDS 63More information can be found in the IEEE 802.11, WPA, and 802.11i Standards. 64.Sh HISTORY 65The 66.Nm 67driver first appeared in 68.Fx 6.0 . 69