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HIFN(4) OpenBSD Programmer's Manual HIFN(4) NAME hifn - Hifn 7751/7951/7811 crypto accelerator SYNOPSIS hifn* at pci? dev ? function ? DESCRIPTION The hifn driver supports various cards containing the Hifn 7751, Hifn 7951, Hifn 7811, 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 with 512KB SRAM. XL-Crypt See http://www.powercrypt.com/. Only board based on 7811 (which is faster than 7751 and has a random number generator). NetSec 7751 See http://www.netsec.net/. Supports the most IPsec sessions, with 1MB SRAM. Soekris Engineering vpn1201 and vpn1211 See http://www.soekris.com/. Contains a 7951 and supports symmetric and random number operations. Hifn 9751 Reference board with 512KB SRAM. This is really a Hifn 7751 which only supports compression. The hifn driver registers itself to accelerate DES, Triple-DES, ARC4, MD5, MD5-HMAC, SHA1, SHA1-HMAC, and LZS operations for ipsec(4) and crypto(4), except for the Hifn 9751 which only registers to support LZS. The Hifn 7951 and Hifn 7811 will also supply data to the kernel random(4) subsystem. SEE ALSO crypt(3), crypto(4), intro(4), ipsec(4), random(4), crypto(9) HISTORY The hifn device driver appeared in OpenBSD 2.7. BUGS The 7751 chip starts out at initialization by only supporting compres- sion. A proprietary algorithm, which has been reverse engineered, is re- quired to unlock the cryptographic functionality of the chip. It is pos- sible 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. OpenBSD 3.4 March 16, 2000 1
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | BUGS
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