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HIFN(4)		       FreeBSD Kernel Interfaces Manual		       HIFN(4)

NAME
     hifn -- Hifn 7751/7811/7951/7955/7956/9751	crypto accelerator

SYNOPSIS
     hifn* at pci?

DESCRIPTION
     The hifn driver supports various cards containing the Hifn	7751, Hifn
     7811, Hifn	7951, Hifn 7955, Hifn 7956, or Hifn 9751 chipsets, such	as:

	   Invertex AEON   Comes as 128KB SRAM model, or 2MB DRAM model.

	   Hifn	7751	   Reference board with	512KB SRAM.

	   PowerCrypt	   Comes with 512KB SRAM.

	   PowerCrypt 5x   Contains a 7956 and supports	symmetric encryption
			   (including AES), random number, and modular expo-
			   nentiation operations.

	   XL-Crypt	   Only	board based on 7811 (which is faster than 7751
			   and has a random number generator).

	   NetSec 7751	   7751	board with 1MB of SRAM.

	   Soekris Engineering vpn1201 and vpn1211
			   Contains a 7951 and supports	symmetric encryption
			   and random number operations.

	   Soekris Engineering vpn1401 and vpn1411
			   Contains a 7955 and supports	symmetric encryption
			   (including AES), random number, and modular expo-
			   nentiation operations.

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

     The Hifn 7751, Hifn 7811, Hifn 7951, Hifn 7955, and Hifn 7956 chips all
     support acceleration of Triple-DES, MD5-HMAC, SHA1-HMAC, and LZS opera-
     tions for ipsec(4).  The Hifn 7955	and Hifn 7956 chips additionally sup-
     port AES-CBC.  The	Hifn 9751 only supports	LZS.

     The Hifn 7811, Hifn 7951, Hifn 7955, and Hifn 7956	will also supply data
     to	the kernel random(4) subsystem.

SEE ALSO
     crypt(3), intro(4), ipsec(4), pci(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.

     The 7951, 7955 and	7956 have support for public key operations which are
     not yet supported.

FreeBSD	13.0		      September	27, 2016		  FreeBSD 13.0

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

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