crypto - hardware crypto access driver
pseudo-device crypto [count]
The crypto driver provides userland applications access to
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 is 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 Set up a new crypto session for a new type of
CIOCFSESSION Free a previously established session.
CIOCCRYPT Perform a crypto operation against a previously set up session.
Depending on hardware being present, the following symmetric
cryptographic features are potentially available from
/dev/crypto crypto access device
hifn(4), ises(4), lofn(4), noct(4), nofn(4), safe(4), ubsec(4), crypto(9)
The crypto driver appeared in OpenBSD 3.0.
OpenBSD 3.6 May 13, 2001
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