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dca(7D)				    Devices			       dca(7D)

NAME
       dca - Crypto Accelerator device driver

SYNOPSIS
       pci108e,5454@pci-slot

       pci108e,5455@pci-slot

       pci108e,5456@pci-slot

       pci14e4,5820@pci-slot

       pci14e4,5821@pci-slot

       pci14e4,5822@pci-slot

DESCRIPTION
       The  dca	 device	 driver	 is a multi-threaded, loadable hardware driver
       supporting Sun  PCI-based  (pci108e,5454)  cryptographic	 accelerators,
       such as the Sun Crypto Accelerator 1000.

       The  dca	 driver requires the presence of  Solaris Cryptographic Frame‐
       work for applications and kernel clients to access  the	provided  ser‐
       vices.

EXTENDED DESCRIPTION
       The dca driver maintains the following statistics:

       3desjobs	       Total  number  of jobs submitted to the device for 3DES
		       encryption.

       3desbytes       Total number of bytes submitted to the device for  3DES
		       encryption.

       rsapublic       Total  number  of  jobs submitted to the device for RSA
		       public key operations.

       rsaprivate      Total number of jobs submitted to the  device  for  RSA
		       private key operations.

       dsasign	       Total  number  of  jobs submitted to the device for DSA
		       signing.

       dsaverify       Total number of jobs submitted to the  device  for  DSA
		       verification.

       rngjobs	       Total number of jobs submitted for pure entropy genera‐
		       tion.

       rngbytes	       Total number of bytes of pure  entropy  requested  from
		       the device.

       rngsha1jobs     Total  number of jobs submitted for entropy generation,
		       with SHA-1 post-processing.

       rngsha1bytes    Total number of bytes of	 entropy  requested  from  the
		       device, with SHA-1 post-processing.

       Additional  statistics  may be supplied for Sun support personnel,  but
       are not useful to end users and are not documented here.

       The dca driver can  be  configured  by  defining	 properties  in	 /ker‐
       nel/drv/dca.conf	 which	override  the  default settings. The following
       properties are supported:

       nostats	    Disables the generation of statistics. This	 property  may
		    be	used  to  help	prevent traffic analysis, but this may
		    inhibit support personnel.

       rngdirect    Disables the SHA-1 post-processing of  generated  entropy.
		    This  may  give  "truer"  random  numbers, but it may also
		    introduce the risk of external biases influencing the dis‐
		    tribution of generated random numbers.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Architecture		     │SPARC			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Availability		     │driver/crypto/dca		   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Uncommitted		   │
       └─────────────────────────────┴─────────────────────────────┘

FILES
       /kernel/drv/dca.conf	  dca configuration file

       /kernel/drv/sparcv9/dca	  64-bit ELF kernel driver (SPARC)

       /kernel/drv/dca		  32-bit ELF kernel driver (x86)

       /kernel/drv/amd64/dca	  64-bit ELF kernel driver (AMD64)

SEE ALSO
       cryptoadm(1M), kstat(1M), prtconf(1M), driver.conf(4), attributes(5)

       Solaris Cryptographic Framework.

SunOS 5.11			  14 Aug 2005			       dca(7D)
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