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URNG(4) Device Drivers Manual URNG(4)

NAME

urngUSB Random Number Generator devices

SYNOPSIS

urng* at uhub?

DESCRIPTION

The urng driver provides support for various true random number generator (TRNG) devices connected via USB. urng reads raw entropy from the device at a (hardware dependent) interval and stirs it into the system entropy pool with add_true_randomness(9).

HARDWARE

The following devices are supported by this driver:
 
 
Araneus Alea I and II
Capable of delivering 100kbit/sec of hardware-generated entropy.
 
 
Altus Metrum ChaosKey 1.0
This device is capable of providing entropy at 10Mbit/s.

SEE ALSO

intro(4), usb(4), add_true_randomness(9)

HISTORY

The urng driver first appeared in OpenBSD 6.2.

AUTHORS

The urng driver was written by Aaron Bieber <abieber@openbsd.org>,
Jasper Lievisse Adriaanse <jasper@openbsd.org>, and
Sean Levy <attila@stalphonsos.com>.
September 25, 2017 OpenBSD-current