crypto, cryptodev
- Provided by: freebsd-manpages (Version: 10.1~RC1-1)
- Report a bug
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_CBCCRYPTO_3DES_CBCCRYPTO_BLF_CBCCRYPTO_CAMELLIA_CBCCRYPTO_CAST_CBCCRYPTO_SKIPJACK_CBCCRYPTO_MD5_HMACCRYPTO_SHA1_HMACCRYPTO_RIPEMD160_HMACCRYPTO_MD5_KPDKCRYPTO_SHA1_KPDKCRYPTO_AES_CBCCRYPTO_ARC4CRYPTO_MD5CRYPTO_SHA1CRK_MOD_EXPCRK_MOD_EXP_CRTCRK_DSA_SIGNCRK_DSA_VERIFYCRK_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.