$FreeBSD: head/share/man/man4/crypto.4 104488 2002-10-04 20:43:30Z sam $
Copyright (c) 2001 Theo de Raadt
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.Dd October 3, 2002 .Dt CRYPTO 4 .Os .Sh NAME .Nm crypto .Nd hardware crypto access driver .Sh SYNOPSIS .Nm device crypto .Sh DESCRIPTION The .Nm driver provides userland applications access to hardware crypto support via the kernel. The
a /dev/crypto device node primarily operates in an .Xr ioctl 2 based model, permitting a variety of applications to query device capabilities, submit transactions, and get results.
p If .Ar count given in the specification, and is greater than 0, a maximum of one .Nm crypto device is created.
p The following .Xr ioctl 2 calls apply only to the .Nm crypto devices: l -tag -width CIOCGSESSION t Dv CIOCGSESSION Setup a new crypto session for a new type of operation. t Dv CIOCFSESSION Free a previously established session. t Dv CIOCCRYPT Perform a crypto operation against a previously setup session. .El
p .Sh FEATURES Depending on hardware being present, the following symmetric and assymetric cryptographic features are potentially available from
p l -tag -compact -width CRYPTO_RIPEMD160_HMAC -offset indent t CRYPTO_DES_CBC t CRYPTO_3DES_CBC t CRYPTO_BLF_CBC t CRYPTO_CAST_CBC t CRYPTO_SKIPJACK_CBC t CRYPTO_MD5_HMAC t CRYPTO_SHA1_HMAC t CRYPTO_RIPEMD160_HMAC t CRYPTO_MD5_KPDK t CRYPTO_SHA1_KPDK t CRYPTO_AES_CBC t CRYPTO_ARC4 t CRYPTO_MD5 t CRYPTO_SHA1 t CRK_MOD_EXP t CRK_MOD_EXP_CRT t CRK_DSA_SIGN t CRK_DSA_VERIFY t CRK_DH_COMPUTE_KEY .El
p .Sh FILES l -tag -width /dev/crypto -compact t Pa /dev/crypto crypto access device .El .Sh SEE ALSO .Xr hifn 4 , .Xr ubsec 4 , .Xr crypto 9 .Sh HISTORY The .Nm driver first appeared in OpenBSD 3.0. The .Nm driver was imported to FreeBSD in 5.0.