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"

DEPRECATION NOTICE

       The  ubsec  driver is not present in FreeBSD 13.0 and later.  The majority of crypto algorithms supported
       by this driver are no longer used by the kernel in FreeBSD 13.0.

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 registers 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 extremely 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 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.   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.

Debian                                            May 14, 2020                                          UBSEC(4)