hifn - Hifn 7751/7811/7951/7955/7956/9751 crypto accelerator
hifn* at pci? dev ? function ?
The hifn driver supports various cards containing the Hifn
7811, Hifn 7951, Hifn 7955, Hifn 7956, or Hifn 9751
chipsets, such as
Invertex AEON No longer being made. Came as 128KB
SRAM model, or
2MB DRAM model.
Hifn 7751 Reference board with 512KB SRAM.
PowerCrypt See http://www.powercrypt.com/. Comes
XL-Crypt See http://www.powercrypt.com/. Only
on 7811 (which is faster than 7751 and
has a random
NetSec 7751 See http://www.netsec.net/. 7751
board with 1MB of
SRAM. No longer in production.
Soekris Engineering vpn1201 and vpn1211
See http://www.soekris.com/. Contains
a 7951 and
supports symmetric and random number
Soekris Engineering vpn1401 and vpn1411
Contains a 7955 and supports symmetric
AES), random number, and modular exponentiation 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 DES, Triple-DES, ARC4, MD5,
SHA1-HMAC, and LZS operations for ipsec(4) and crypto(4).
The Hifn 7955
and Hifn 7956 chips additionally support AES-CBC. The Hifn
The Hifn 7811, Hifn 7951, Hifn 7955, and Hifn 7956 will also
to the kernel random(4) subsystem.
crypt(3), crypto(4), intro(4), ipsec(4), random(4), crypto(9)
The hifn device driver appeared in OpenBSD 2.7.
The 7751 chip starts out at initialization by only supporting compression.
A proprietary algorithm, which has been reverse engineered, is required
to unlock the cryptographic functionality of the
chip. It is possible
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.
OpenBSD 3.6 March 16, 2000
[ Back ]