Author: kib
Date: Mon Sep 6 20:35:48 2010
New Revision: 212262
URL: http://svn.freebsd.org/changeset/base/212262
Log:
Add aesni(4) manpage.
Added:
head/share/man/man4/aesni.4 (contents, props changed)
Modified:
head/share/man/man4/Makefile
Modified: head/share/man/man4/Makefile
==============================================================================
--- head/share/man/man4/Makefile Mon Sep 6 20:16:10 2010
(r212261)
+++ head/share/man/man4/Makefile Mon Sep 6 20:35:48 2010
(r212262)
@@ -18,6 +18,7 @@ MAN= aac.4 \
adv.4 \
adw.4 \
ae.4 \
+ ${_aesni.4} \
age.4 \
agp.4 \
aha.4 \
@@ -638,6 +639,7 @@ _acpi_panasonic.4=acpi_panasonic.4
_acpi_sony.4= acpi_sony.4
_acpi_toshiba.4=acpi_toshiba.4
_acpi_wmi.4= acpi_wmi.4
+_aesni.4= aesni.4
_aibs.4= aibs.4
_amdsbwd.4= amdsbwd.4
_amdsmb.4= amdsmb.4
Added: head/share/man/man4/aesni.4
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/man/man4/aesni.4 Mon Sep 6 20:35:48 2010 (r212262)
@@ -0,0 +1,91 @@
+.\" Copyright (c) 2010 Konstantin Belousov <k...@freebsd.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd September 6, 2010
+.Dt AESNI 4
+.Os
+.Sh NAME
+.Nm aesni
+.Nd "driver for the AES accelerator on Intel CPUs"
+.Sh SYNOPSIS
+To compile this driver into the kernel,
+place the following lines in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device crypto"
+.Cd "device aesni"
+.Ed
+.Pp
+Alternatively, to load the driver as a
+module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+aesni_load="YES"
+.Ed
+.Sh DESCRIPTION
+Starting with some models of Core i5/i7, Intel processors implement
+new set of instructions called AESNI.
+The set of six instructions accelerates the calculation of the key
+schedule for key lengths of 128, 192, and 256 of the Advanced
+Encryption Standard (AES) symmetric cipher, and provides the hardware
+implementation of the regular and the last encryption and decryption
+rounds.
+.Pp
+The processor capability is reported as AESNI in the Features2 line
+at the boot. Driver does not attach on the system that lacks the
+required CPU capability.
+.Pp
+The
+.Nm
+driver registers itself to accelerate AES operations for
+.Xr crypto 4 .
+Besides speed, advantage of using the driver is that the AESNI operation
+is data-independend, thus eliminating some attack vectors based on the
+measuring cache use and timings, typically present in the table-driven
+implementations.
+.Sh SEE ALSO
+.Xr crypt 3 ,
+.Xr crypto 4 ,
+.Xr intro 4 ,
+.Xr ipsec 4 ,
+.Xr padlock 4 ,
+.Xr random 4 ,
+.Xr crypto 9
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 9.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Konstantin Belousov Aq k...@freebsd.org .
+The key schedule calculation code was adopted from the sample provided
+by Intel and used in the analogous
+.Ox
+driver.
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