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HIFN(4)                   OpenBSD Programmer's Manual                  HIFN(4)

NAME
     hifn - Hifn 7751/7951/7811 crypto accelerator

SYNOPSIS
     hifn* at pci? dev ? function ?

DESCRIPTION
     The hifn driver supports various cards containing the Hifn 7751, Hifn
     7951, Hifn 7811, or Hifn 9751 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.

           Hifn 9751       Reference board with 512KB SRAM.  This is really a
                           Hifn 7751 which only supports compression.

     The hifn driver registers itself to accelerate DES, Triple-DES, ARC4,
     MD5, MD5-HMAC, SHA1, SHA1-HMAC, and LZS operations for ipsec(4) and
     crypto(4), except for the Hifn 9751 which only registers to support LZS.

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

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

HISTORY
     The hifn device driver appeared in OpenBSD 2.7.

BUGS
     The 7751 chip starts out at initialization by only supporting compres-
     sion.  A proprietary algorithm, which has been reverse engineered, is re-
     quired to unlock the cryptographic functionality of the chip.  It is pos-
     sible 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.

OpenBSD 3.4                     March 16, 2000                               1

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

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