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 Framework 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 generation.

       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 /kernel/drv/dca.conf which override the default settings. The following proper-
       ties are supported:

       nostats	    Disables the generation of statistics. This property may be used to help prevent traffic analysis, but this may  inhibit  sup-
		    port 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 distribution of generated random numbers.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Architecture		     |SPARC			   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdcar			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Unstable			   |
       +-----------------------------+-----------------------------+

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)