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CRYPTO(4)	      DragonFly Kernel Interfaces Manual	     CRYPTO(4)

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, permit- ting 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 ses- sion.

FEATURES

Depending on hardware being present, the following symmetric and asymmet- ric 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_AES_XTS CRYPTO_AES_CTR CRYPTO_AES_GCM16 CRYPTO_AES_GMAC CRYPTO_AES_128_GMAC CRYPTO_AES_192_GMAC CRYPTO_AES_256_GMAC CRYPTO_TWOFISH_CBC CRYPTO_SERPENT_CBC CRYPTO_TWOFISH_XTS CRYPTO_SERPENT_XTS 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), crypto(9)

HISTORY

The crypto driver first appeared in OpenBSD 3.0. The crypto driver was imported to FreeBSD 5.0. DragonFly 4.1 August 21, 2010 DragonFly 4.1