OSSL(4)

NAME
ossl - driver using OpenSSL assembly routines

SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:

device crypto
device cryptodev
device ossl

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

    ossl_load="YES"

DESCRIPTION
The OpenSSL distribution includes architecture-specific implementations for some commonly used cryptographic algorithms. This driver adds a wrapper around these routines permitting them to be used by in-kernel cryptography consumers such as kernel TLS and IPsec.

The ossl driver includes architecture-specific implementations for the following architectures:

•   arm64
•   amd64
•   i386

The ossl driver includes support for the following algorithms:

•   AES-CBC
•   AES-GCM (amd64 only)
•   ChaCha20
•   ChaCha20-Poly1305 (RFC 8439)
•   Poly1305
•   SHA1
•   SHA1-HMAC
•   SHA2-224
•   SHA2-224-HMAC
•   SHA2-256
•   SHA2-256-HMAC
•   SHA2-384
•   SHA2-384-HMAC
•   SHA2-512
•   SHA2-512-HMAC

SEE ALSO
crypto(4), intro(4), ipsec(4), crypto(7), crypto(9)

HISTORY
The ossl driver first appeared in FreeBSD 13.0.