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UBSEC(4)		     Kernel Interfaces Manual			UBSEC(4)

NAME
     ubsec -- Broadcom and BlueSteel uBsec 5x0x crypto accelerator

SYNOPSIS
     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device crypto
	   device cryptodev
	   device ubsec

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

	   ubsec_load="YES"

DESCRIPTION
     The  ubsec  driver  supports  cards containing Broadcom and BlueSteel uBsec
     5x0x crypto accelerator chips.

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

     On  those	models which contain a public key engine (almost all of the more
     recent ones), this feature is registered with the crypto(4) subsystem.

     On all models except the Bluesteel 5501 and Broadcom 5801, the driver  reg-
     isters itself to provide random data to the random(4) subsystem.

HARDWARE
     The ubsec driver supports cards containing any of the following chips:

	   Bluesteel 5501    The  original  chipset,  no  longer made.	This ex-
			     tremely rare unit was not very fast, lacked an RNG,
			     and had a number of other bugs.

	   Bluesteel 5601    A faster and fixed version of the original, with  a
			     random number unit and large number engine added.

	   Broadcom BCM5801  A	BCM5805 without public key engine or random num-
			     ber generator.

	   Broadcom BCM5802  A slower version of the BCM5805.

	   Broadcom BCM5805  Faster version of Bluesteel 5601.

	   Broadcom BCM5820  64 bit version of the chip, and significantly  more
			     advanced.

	   Broadcom BCM5821  Faster  version  of  the BCM5820.	This is the chip
			     found on the Sun Crypto Accelerator 1000.

	   Broadcom BCM5822  Faster version of the BCM5820.

	   Broadcom BCM5823  A BCM5822 with AES capability.

	   Broadcom BCM5825  Faster version of the BCM5823.

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

HISTORY
     The ubsec device driver appeared in OpenBSD 2.8.  The ubsec  device  driver
     was imported to FreeBSD 5.0.

BUGS
     The  BCM5801 and BCM5802 have not actually been tested.  The AES capability
     of the BCM5823 is not yet supported; it is awaiting  public  disclosure  of
     programming information from Broadcom.

FreeBSD 8.1			  May 16, 2009				UBSEC(4)
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