NAME¶
crypto,
cryptodev —
hardware crypto access driver
SYNOPSIS¶
device crypto
device cryptodev
DESCRIPTION¶
The
crypto driver provides a device-independent framework to
support cryptographic operations in the kernel. The
cryptodev driver provides userland applications access to
this support through the
/dev/crypto device. This 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.
FEATURES¶
Depending on hardware being present, the following symmetric and asymmetric
cryptographic features are potentially available from
/dev/crypto:
CRYPTO_DES_CBC-
CRYPTO_3DES_CBC-
CRYPTO_BLF_CBC-
CRYPTO_CAMELLIA_CBC-
CRYPTO_CAST_CBC-
CRYPTO_SKIPJACK_CBC-
CRYPTO_MD5_HMAC-
CRYPTO_SHA1_HMAC-
CRYPTO_RIPEMD160_HMAC-
CRYPTO_MD5_KPDK-
CRYPTO_SHA1_KPDK-
CRYPTO_AES_CBC-
CRYPTO_ARC4-
CRYPTO_MD5-
CRYPTO_SHA1-
CRK_MOD_EXP-
CRK_MOD_EXP_CRT-
CRK_DSA_SIGN-
CRK_DSA_VERIFY-
CRK_DH_COMPUTE_KEY-
FILES¶
- /dev/crypto
- crypto access device
SEE ALSO¶
aesni(4),
glxsb(4),
hifn(4),
ipsec(4),
padlock(4),
safe(4),
ubsec(4),
geli(8),
crypto(9)
HISTORY¶
The
crypto driver first appeared in
OpenBSD
3.0. The
crypto driver was imported to
FreeBSD 5.0.
