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Man Pages


Manual Reference Pages  -  CRYPTODEV (4)

NAME

crypto, cryptodev - hardware crypto access driver

CONTENTS

Synopsis
Description
Features
Files
See Also
History

SYNOPSIS


.Cd device crypto
.Cd 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
.Ox 3.0 . The crypto driver was imported to
.Fx 5.0 .
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