1 .\" $NetBSD: hifn.4,v 1.5 2004/04/29 19:05:36 jonathan Exp $
2 .\" $OpenBSD: hifn.4,v 1.32 2002/09/26 07:55:40 miod Exp $
3 .\" $FreeBSD: src/share/man/man4/hifn.4,v 1.1.2.2 2003/10/08 23:57:50 sam Exp $
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36 .Nd Hifn 7751/7951/7811/7955/7956 crypto accelerator
38 .Cd "hifn* at pci? dev ? function ?"
42 driver supports various cards containing the Hifn 7751, 7951,
45 .Bl -tag -width namenamenamena -offset indent
48 Came as 128KB SRAM model, or 2MB DRAM model.
50 Reference board with 512KB SRAM.
53 .Pa http://www.powercrypt.com/ .
54 Comes with 512KB SRAM.
57 .Pa http://www.powercrypt.com/ .
58 Only board based on 7811 (which is faster than 7751 and has
59 a random number generator).
62 .Pa http://www.netsec.net/ .
63 Supports the most IPsec sessions, with 1MB SRAM.
64 .It Soekris Engineering vpn1201 and vpn1211
66 .Pa http://www.soekris.com/ .
67 Contains a 7951 and supports symmetric and random number operations.
68 .It Soekris Engineering vpn1401 and vpn1411
70 .Pa http://www.soekris.com/ .
71 Contains a 7955 and supports symmetric and random number operations.
76 driver registers itself to accelerate DES, Triple-DES,
77 AES (7955 and 7956 only), ARC4, MD5,
78 MD5-HMAC, SHA1, and SHA1-HMAC operations for
91 may also supply data to the kernel
103 device driver appeared in
107 device driver was imported to
111 and subsequently imported into
114 The Hifn 9751 shares the same PCI ID.
115 This chip is basically a 7751, but with the cryptographic functions missing.
116 Instead, the 9751 is only capable of doing compression.
117 Since we do not currently attempt to use any of these chips to do
118 compression, the 9751-based cards are not useful.
120 Support for the 7955 and 7956 is incomplete; the asymmetric crypto
121 facilities are to be added and the performance is suboptimal.
123 Supplying data to the kernel
125 subsystem has been disabled, pending verification that the on-chip
126 RNG is statistically adequate.
128 The 7751 chip starts out at initialization by only supporting compression.
129 A proprietary algorithm, which has been reverse engineered, is required to
130 unlock the cryptographic functionality of the chip.
131 It is possible for vendors to make boards which have a lock ID not known
132 to the driver, but all vendors currently just use the obvious ID which is