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33 .Nd SafeNet crypto accelerator
35 To compile this driver into the kernel,
36 place the following lines in your
37 kernel configuration file:
38 .Bd -ragged -offset indent
40 .Cd "device cryptodev"
44 Alternatively, to load the driver as a
45 module at boot time, place the following line in
47 .Bd -literal -offset indent
51 .Nm sysctl Va hw.safe.debug
52 .Nm sysctl Va hw.safe.dump
53 .Nm sysctl Va hw.safe.rnginterval
54 .Nm sysctl Va hw.safe.rngbufsize
55 .Nm sysctl Va hw.safe.rngmaxalarm
59 driver supports cards containing SafeNet crypto accelerator chips.
63 driver registers itself to accelerate DES, Triple-DES, AES, MD5-HMAC,
64 SHA1-HMAC, and NULL operations for
69 On all models, the driver registers itself to provide random data to the
72 Periodically the driver will poll the hardware RNG and retrieve
73 data for use by the system.
74 If the driver detects that the hardware RNG is resonating with any local
75 signal, it will reset the oscillators that generate random data.
78 settings control this procedure:
79 .Va hw.safe.rnginterval
80 specifies the time, in seconds, between polling operations,
81 .Va hw.safe.rngbufsize
82 specifies the number of 32-bit words to retrieve on each poll,
84 .Va hw.safe.rngmaxalarm
85 specifies the threshold for resetting the oscillators.
87 When the driver is compiled with
91 variables are provided for debugging purposes:
93 can be set to a non-zero value to enable debugging messages to be sent
94 to the console for each cryptographic operation,
96 is a write-only variable that can be used to force driver state to be sent
100 to dump the current state of the descriptor ring,
103 to dump the hardware DMA registers,
107 to dump the hardware interrupt registers.
111 driver supports cards containing any of the following chips:
112 .Bl -tag -width "SafeNet 1141" -offset indent
114 The original chipset.
115 Supports DES, Triple-DES, AES, MD5, and SHA-1
116 symmetric crypto operations, RNG, public key operations, and full IPsec
119 A faster version of the 1141.
129 Public key support is not implemented.