dca(7D) Devices dca(7D)NAMEdca - 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 │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 ALSOcryptoadm(1M), kstat(1M), prtconf(1M), driver.conf(4), attributes(5)
Solaris Cryptographic Framework.
SunOS 5.10 14 Aug 2005 dca(7D)