safe man page on FreeBSD

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SAFE(4)			 BSD Kernel Interfaces Manual		       SAFE(4)

     safe — SafeNet crypto accelerator

     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device crypto
	   device cryptodev
	   device safe

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):



     The safe driver supports cards containing SafeNet crypto accelerator

     The safe driver registers itself to accelerate DES, Triple-DES, AES,
     MD5-HMAC, SHA1-HMAC, and NULL operations for ipsec(4) and crypto(4).

     On all models, the driver registers itself to provide random data to the
     random(4) subsystem.  Periodically the driver will poll the hardware RNG
     and retrieve data for use by the system.  If the driver detects that the
     hardware RNG is resonating with any local signal, it will reset the
     oscillators that generate random data.  Three sysctl(8) settings control
     this procedure: specifies the time, in seconds,
     between polling operations, specifies the number of
     32-bit words to retrieve on each poll, and specifies
     the threshold for resetting the oscillators.

     When the driver is compiled with SAFE_DEBUG defined, two sysctl(8) vari‐
     ables are provided for debugging purposes: can be set to a
     non-zero value to enable debugging messages to be sent to the console for
     each cryptographic operation, is a write-only variable that
     can be used to force driver state to be sent to the console.  Set this
     variable to “ring” to dump the current state of the descriptor ring, to
     “dma” to dump the hardware DMA registers, or to “int” to dump the hard‐
     ware interrupt registers.

     The safe driver supports cards containing any of the following chips:

	   SafeNet 1141	 The original chipset.	Supports DES, Triple-DES, AES,
			 MD5, and SHA-1 symmetric crypto operations, RNG, pub‐
			 lic key operations, and full IPsec packet processing.

	   SafeNet 1741	 A faster version of the 1141.

     crypt(3), crypto(4), intro(4), ipsec(4), random(4), crypto(9)

     Public key support is not implemented.

BSD				 April 1, 2006				   BSD

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