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UBSEC(4)	       FreeBSD Kernel Interfaces Manual		      UBSEC(4)

     ubsec -- Broadcom and BlueSteel uBsec 5x0x	crypto accelerator

     device ubsec

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

	   Bluesteel 5501    The original chipset, no longer made.  This
			     extremely rare unit was not very fast, lacked a
			     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

	   Broadcom BCM5801  A BCM5805 without public key engine or random
			     number 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.

	   Broadcom BCM5822  Faster version of the BCM5820.

	   Broadcom BCM5823  A BCM5822 with AES	capability.

     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
     registers itself to provide random	data to	the random(4) subsystem.

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

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

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

FreeBSD	11.1		       February	28, 2003		  FreeBSD 11.1


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