NAME
ubsec
- Broadcom and BlueSteel uBsec 5x0x crypto accelerator
SYNOPSIS
ubsec* at pci? dev ? function ?
DESCRIPTION
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
-
Faster version of the BCM5822.
- Broadcom BCM5823
-
Faster version of the BCM5821, with AES hardware.
The
ubsec
driver registers itself to accelerate DES, Triple-DES, MD5, SHA1,
MD5-HMAC, and SHA1-HMAC operations for
opencrypto(9),
and thus for
fast_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
rnd(4)
subsystem.
SEE ALSO
crypto(4),
fast_ipsec(4),
intro(4),
rnd(4),
opencrypto(9)
HISTORY
The
ubsec
device driver appeared in
OpenBSD2.8.
The
ubsec
device driver was imported to
FreeBSD5.0,
back-ported to
FreeBSD4.8,
and subsequently imported to
NetBSD2.0.
BUGS
The BCM5801 and BCM5802 have not actually been tested.
Whilst some of the newer chips support AES, AES is not supported by the driver.