Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
HIFN(4)		       FreeBSD Kernel Interfaces Manual		       HIFN(4)

NAME
     hifn -- Hifn 7751/7951/7811 crypto	accelerator

SYNOPSIS
     device hifn

DESCRIPTION
     The hifn driver supports various cards containing the Hifn	7751, Hifn
     7951, or Hifn 7811	chipsets, such as

	   Invertex AEON   No longer being made.  Came as 128KB	SRAM model, or
			   2MB DRAM model.

	   Hifn	7751	   Reference board with	512KB SRAM.

	   PowerCrypt	   See http://www.powercrypt.com/.  Comes with 512KB
			   SRAM.

	   XL-Crypt	   See http://www.powercrypt.com/.  Only board based
			   on 7811 (which is faster than 7751 and has a	random
			   number generator).

	   NetSec 7751	   See http://www.netsec.net/.	Supports the most
			   IPsec sessions, with	1MB SRAM.

	   Soekris Engineering vpn1201 and vpn1211
			   See http://www.soekris.com/.	 Contains a 7951 and
			   supports symmetric and random number	operations.

     The hifn driver registers itself to accelerate DES, Triple-DES, ARC4,
     MD5, MD5-HMAC, SHA1, and SHA1-HMAC	operations for ipsec(4)	and crypto(4).

     The Hifn 7951 and Hifn 7811 will also supply data to the kernel random(4)
     subsystem.

BUGS
     The 7751 chip starts out at initialization	by only	supporting compres-
     sion.  A proprietary algorithm, which has been reverse engineered,	is
     required to unlock	the cryptographic functionality	of the chip.  It is
     possible for vendors to make boards which have a lock ID not known	to the
     driver, but all vendors currently just use	the obvious ID which is	13
     bytes of 0.

SEE ALSO
     crypt(3), crypto(4), intro(4), ipsec(4), random(4), crypto(9)

CAVEATS
     The Hifn 9751 shares the same PCI ID.  This chip is basically a 7751, but
     with the cryptographic functions missing.	Instead, the 9751 is only
     capable of	doing compression.  Since we do	not currently attempt to use
     any of these chips	to do compression, the 9751-based cards	are not	use-
     ful.

HISTORY
     The hifn device driver appeared in	OpenBSD	2.7.  The hifn device driver
     was imported to FreeBSD 5.0.

FreeBSD	10.1			October	3, 2002			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | BUGS | SEE ALSO | CAVEATS | HISTORY

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=hifn&sektion=4&manpath=FreeBSD+5.0-RELEASE>

home | help