crypto -- hardware crypto access driver
The crypto driver provides userland applications access to hardware
crypto support via the kernel. The /dev/crypto device node primarily
operates in an ioctl(2) based model, permitting a variety of applications
to query device capabilities, submit transactions, and get results.
If count given in the specification, and is greater than 0, a maximum of
one crypto device is created.
The following ioctl(2) calls apply only to the crypto devices:
CIOCGSESSION Setup a new crypto session for a new type of operation.
CIOCFSESSION Free a previously established session.
CIOCCRYPT Perform a crypto operation against a previously setup session.
Depending on hardware being present, the following symmetric and asymmetric
cryptographic features are potentially available from /dev/crypto:
/dev/crypto crypto access device
hifn(4), ubsec(4), crypto(9)
The crypto driver first appeared in OpenBSD 3.0. The crypto driver was
imported to FreeBSD 5.0.
FreeBSD 5.2.1 October 3, 2002 FreeBSD 5.2.1 [ Back ]